fix handling of redirect from asset download

Godeps/Godeps.json

@@ -8,19 +8,19 @@
 	"Deps": [
 		{
 			"ImportPath": "github.com/cppforlife/go-semi-semantic/version",
-			"Rev": "a7ba07c61e58e6df7693d49a13d24f533182518a"
+			"Rev": "6d81a57cf024149eba18224dc3f46b1f79cbb7f3"
 		},
 		{
 			"ImportPath": "github.com/golang/protobuf/proto",
-			"Rev": "0dfe8f37844c14cb32c7247925270e0f7ba90973"
+			"Rev": "45bba206dd5270d96bac4942dcfe515726613249"
 		},
 		{
 			"ImportPath": "github.com/google/go-github/github",
-			"Rev": "07995e49c22dcb1e372c88ff12793b0194433e1c"
+			"Rev": "f6f75a742a52df1fd2f2ba9346dc59a864a9166d"
 		},
 		{
 			"ImportPath": "github.com/google/go-querystring/query",
-			"Rev": "2a60fc2ba6c19de80291203597d752e9ba58e4c0"
+			"Rev": "9235644dd9e52eeae6fa48efd539fdc351a0af53"
 		},
 		{
 			"ImportPath": "github.com/mitchellh/colorstring",
@@ -28,159 +28,159 @@
 		},
 		{
 			"ImportPath": "github.com/onsi/ginkgo",
-			"Comment": "v1.2.0-42-g07d85e6",
+			"Comment": "v1.2.0-55-g5437a97",
-			"Rev": "07d85e6b10c4289c7d612f9b13f45ba36f66d55b"
+			"Rev": "5437a97bf824dec14e58d68c56ee36e772670c2e"
 		},
 		{
 			"ImportPath": "github.com/onsi/ginkgo/config",
-			"Comment": "v1.2.0-42-g07d85e6",
+			"Comment": "v1.2.0-55-g5437a97",
-			"Rev": "07d85e6b10c4289c7d612f9b13f45ba36f66d55b"
+			"Rev": "5437a97bf824dec14e58d68c56ee36e772670c2e"
 		},
 		{
 			"ImportPath": "github.com/onsi/ginkgo/internal/codelocation",
-			"Comment": "v1.2.0-42-g07d85e6",
+			"Comment": "v1.2.0-55-g5437a97",
-			"Rev": "07d85e6b10c4289c7d612f9b13f45ba36f66d55b"
+			"Rev": "5437a97bf824dec14e58d68c56ee36e772670c2e"
 		},
 		{
 			"ImportPath": "github.com/onsi/ginkgo/internal/containernode",
-			"Comment": "v1.2.0-42-g07d85e6",
+			"Comment": "v1.2.0-55-g5437a97",
-			"Rev": "07d85e6b10c4289c7d612f9b13f45ba36f66d55b"
+			"Rev": "5437a97bf824dec14e58d68c56ee36e772670c2e"
 		},
 		{
 			"ImportPath": "github.com/onsi/ginkgo/internal/failer",
-			"Comment": "v1.2.0-42-g07d85e6",
+			"Comment": "v1.2.0-55-g5437a97",
-			"Rev": "07d85e6b10c4289c7d612f9b13f45ba36f66d55b"
+			"Rev": "5437a97bf824dec14e58d68c56ee36e772670c2e"
 		},
 		{
 			"ImportPath": "github.com/onsi/ginkgo/internal/leafnodes",
-			"Comment": "v1.2.0-42-g07d85e6",
+			"Comment": "v1.2.0-55-g5437a97",
-			"Rev": "07d85e6b10c4289c7d612f9b13f45ba36f66d55b"
+			"Rev": "5437a97bf824dec14e58d68c56ee36e772670c2e"
 		},
 		{
 			"ImportPath": "github.com/onsi/ginkgo/internal/remote",
-			"Comment": "v1.2.0-42-g07d85e6",
+			"Comment": "v1.2.0-55-g5437a97",
-			"Rev": "07d85e6b10c4289c7d612f9b13f45ba36f66d55b"
+			"Rev": "5437a97bf824dec14e58d68c56ee36e772670c2e"
 		},
 		{
 			"ImportPath": "github.com/onsi/ginkgo/internal/spec",
-			"Comment": "v1.2.0-42-g07d85e6",
+			"Comment": "v1.2.0-55-g5437a97",
-			"Rev": "07d85e6b10c4289c7d612f9b13f45ba36f66d55b"
+			"Rev": "5437a97bf824dec14e58d68c56ee36e772670c2e"
 		},
 		{
 			"ImportPath": "github.com/onsi/ginkgo/internal/specrunner",
-			"Comment": "v1.2.0-42-g07d85e6",
+			"Comment": "v1.2.0-55-g5437a97",
-			"Rev": "07d85e6b10c4289c7d612f9b13f45ba36f66d55b"
+			"Rev": "5437a97bf824dec14e58d68c56ee36e772670c2e"
 		},
 		{
 			"ImportPath": "github.com/onsi/ginkgo/internal/suite",
-			"Comment": "v1.2.0-42-g07d85e6",
+			"Comment": "v1.2.0-55-g5437a97",
-			"Rev": "07d85e6b10c4289c7d612f9b13f45ba36f66d55b"
+			"Rev": "5437a97bf824dec14e58d68c56ee36e772670c2e"
 		},
 		{
 			"ImportPath": "github.com/onsi/ginkgo/internal/testingtproxy",
-			"Comment": "v1.2.0-42-g07d85e6",
+			"Comment": "v1.2.0-55-g5437a97",
-			"Rev": "07d85e6b10c4289c7d612f9b13f45ba36f66d55b"
+			"Rev": "5437a97bf824dec14e58d68c56ee36e772670c2e"
 		},
 		{
 			"ImportPath": "github.com/onsi/ginkgo/internal/writer",
-			"Comment": "v1.2.0-42-g07d85e6",
+			"Comment": "v1.2.0-55-g5437a97",
-			"Rev": "07d85e6b10c4289c7d612f9b13f45ba36f66d55b"
+			"Rev": "5437a97bf824dec14e58d68c56ee36e772670c2e"
 		},
 		{
 			"ImportPath": "github.com/onsi/ginkgo/reporters",
-			"Comment": "v1.2.0-42-g07d85e6",
+			"Comment": "v1.2.0-55-g5437a97",
-			"Rev": "07d85e6b10c4289c7d612f9b13f45ba36f66d55b"
+			"Rev": "5437a97bf824dec14e58d68c56ee36e772670c2e"
 		},
 		{
 			"ImportPath": "github.com/onsi/ginkgo/reporters/stenographer",
-			"Comment": "v1.2.0-42-g07d85e6",
+			"Comment": "v1.2.0-55-g5437a97",
-			"Rev": "07d85e6b10c4289c7d612f9b13f45ba36f66d55b"
+			"Rev": "5437a97bf824dec14e58d68c56ee36e772670c2e"
 		},
 		{
 			"ImportPath": "github.com/onsi/ginkgo/types",
-			"Comment": "v1.2.0-42-g07d85e6",
+			"Comment": "v1.2.0-55-g5437a97",
-			"Rev": "07d85e6b10c4289c7d612f9b13f45ba36f66d55b"
+			"Rev": "5437a97bf824dec14e58d68c56ee36e772670c2e"
 		},
 		{
 			"ImportPath": "github.com/onsi/gomega",
-			"Comment": "v1.0-83-gc72df92",
+			"Comment": "v1.0-97-gc73e516",
-			"Rev": "c72df929b80ef4930aaa75d5e486887ff2f3e06a"
+			"Rev": "c73e51675ad2455a4515b6213eb7145eaade4824"
 		},
 		{
 			"ImportPath": "github.com/onsi/gomega/format",
-			"Comment": "v1.0-83-gc72df92",
+			"Comment": "v1.0-97-gc73e516",
-			"Rev": "c72df929b80ef4930aaa75d5e486887ff2f3e06a"
+			"Rev": "c73e51675ad2455a4515b6213eb7145eaade4824"
 		},
 		{
 			"ImportPath": "github.com/onsi/gomega/ghttp",
-			"Comment": "v1.0-83-gc72df92",
+			"Comment": "v1.0-97-gc73e516",
-			"Rev": "c72df929b80ef4930aaa75d5e486887ff2f3e06a"
+			"Rev": "c73e51675ad2455a4515b6213eb7145eaade4824"
 		},
 		{
 			"ImportPath": "github.com/onsi/gomega/internal/assertion",
-			"Comment": "v1.0-83-gc72df92",
+			"Comment": "v1.0-97-gc73e516",
-			"Rev": "c72df929b80ef4930aaa75d5e486887ff2f3e06a"
+			"Rev": "c73e51675ad2455a4515b6213eb7145eaade4824"
 		},
 		{
 			"ImportPath": "github.com/onsi/gomega/internal/asyncassertion",
-			"Comment": "v1.0-83-gc72df92",
+			"Comment": "v1.0-97-gc73e516",
-			"Rev": "c72df929b80ef4930aaa75d5e486887ff2f3e06a"
+			"Rev": "c73e51675ad2455a4515b6213eb7145eaade4824"
 		},
 		{
 			"ImportPath": "github.com/onsi/gomega/internal/oraclematcher",
-			"Comment": "v1.0-83-gc72df92",
+			"Comment": "v1.0-97-gc73e516",
-			"Rev": "c72df929b80ef4930aaa75d5e486887ff2f3e06a"
+			"Rev": "c73e51675ad2455a4515b6213eb7145eaade4824"
 		},
 		{
 			"ImportPath": "github.com/onsi/gomega/internal/testingtsupport",
-			"Comment": "v1.0-83-gc72df92",
+			"Comment": "v1.0-97-gc73e516",
-			"Rev": "c72df929b80ef4930aaa75d5e486887ff2f3e06a"
+			"Rev": "c73e51675ad2455a4515b6213eb7145eaade4824"
 		},
 		{
 			"ImportPath": "github.com/onsi/gomega/matchers",
-			"Comment": "v1.0-83-gc72df92",
+			"Comment": "v1.0-97-gc73e516",
-			"Rev": "c72df929b80ef4930aaa75d5e486887ff2f3e06a"
+			"Rev": "c73e51675ad2455a4515b6213eb7145eaade4824"
 		},
 		{
 			"ImportPath": "github.com/onsi/gomega/matchers/support/goraph/bipartitegraph",
-			"Comment": "v1.0-83-gc72df92",
+			"Comment": "v1.0-97-gc73e516",
-			"Rev": "c72df929b80ef4930aaa75d5e486887ff2f3e06a"
+			"Rev": "c73e51675ad2455a4515b6213eb7145eaade4824"
 		},
 		{
 			"ImportPath": "github.com/onsi/gomega/matchers/support/goraph/edge",
-			"Comment": "v1.0-83-gc72df92",
+			"Comment": "v1.0-97-gc73e516",
-			"Rev": "c72df929b80ef4930aaa75d5e486887ff2f3e06a"
+			"Rev": "c73e51675ad2455a4515b6213eb7145eaade4824"
 		},
 		{
 			"ImportPath": "github.com/onsi/gomega/matchers/support/goraph/node",
-			"Comment": "v1.0-83-gc72df92",
+			"Comment": "v1.0-97-gc73e516",
-			"Rev": "c72df929b80ef4930aaa75d5e486887ff2f3e06a"
+			"Rev": "c73e51675ad2455a4515b6213eb7145eaade4824"
 		},
 		{
 			"ImportPath": "github.com/onsi/gomega/matchers/support/goraph/util",
-			"Comment": "v1.0-83-gc72df92",
+			"Comment": "v1.0-97-gc73e516",
-			"Rev": "c72df929b80ef4930aaa75d5e486887ff2f3e06a"
+			"Rev": "c73e51675ad2455a4515b6213eb7145eaade4824"
 		},
 		{
 			"ImportPath": "github.com/onsi/gomega/types",
-			"Comment": "v1.0-83-gc72df92",
+			"Comment": "v1.0-97-gc73e516",
-			"Rev": "c72df929b80ef4930aaa75d5e486887ff2f3e06a"
+			"Rev": "c73e51675ad2455a4515b6213eb7145eaade4824"
-		},
-		{
-			"ImportPath": "github.com/xoebus/statham",
-			"Rev": "7b5896306a82ba5c78d2b0c8df4d29e36ba9ac2f"
 		},
 		{
 			"ImportPath": "golang.org/x/net/context",
-			"Rev": "8968c61983e8f51a91b8c0ef25bf739278c89634"
+			"Rev": "f841c39de738b1d0df95b5a7187744f0e03d8112"
 		},
 		{
 			"ImportPath": "golang.org/x/oauth2",
-			"Rev": "8a57ed94ffd43444c0879fe75701732a38afc985"
+			"Rev": "7357e96168422ba1e6e7f21075713b72d58764e7"
 		},
 		{
 			"ImportPath": "golang.org/x/oauth2/internal",
-			"Rev": "8a57ed94ffd43444c0879fe75701732a38afc985"
+			"Rev": "7357e96168422ba1e6e7f21075713b72d58764e7"
+		},
+		{
+			"ImportPath": "gopkg.in/yaml.v2",
+			"Rev": "a83829b6f1293c91addabc89d0571c246397bbf4"
 		}
 	]
 }

check_command.go

@@ -29,7 +29,7 @@ func (c *CheckCommand) Run(request CheckRequest) ([]Version, error) {
 		return []Version{}, nil
 	}
 
-	var filteredReleases []github.RepositoryRelease
+	var filteredReleases []*github.RepositoryRelease
 
 	for _, release := range releases {
 		if request.Source.Drafts != *release.Draft {
@@ -54,7 +54,7 @@ func (c *CheckCommand) Run(request CheckRequest) ([]Version, error) {
 
 	if (request.Version == Version{}) {
 		return []Version{
-			versionFromRelease(&latestRelease),
+			versionFromRelease(latestRelease),
 		}, nil
 	}
 
@@ -77,7 +77,7 @@ func (c *CheckCommand) Run(request CheckRequest) ([]Version, error) {
 		}
 
 		if upToLatest {
-			reversedVersions = append(reversedVersions, versionFromRelease(&release))
+			reversedVersions = append(reversedVersions, versionFromRelease(release))
 		}
 	}
 
@@ -85,14 +85,14 @@ func (c *CheckCommand) Run(request CheckRequest) ([]Version, error) {
 		// current version was removed; start over from latest
 		reversedVersions = append(
 			reversedVersions,
-			versionFromRelease(&filteredReleases[len(filteredReleases)-1]),
+			versionFromRelease(filteredReleases[len(filteredReleases)-1]),
 		)
 	}
 
 	return reversedVersions, nil
 }
 
-type byVersion []github.RepositoryRelease
+type byVersion []*github.RepositoryRelease
 
 func (r byVersion) Len() int {
 	return len(r)

check_command_test.go

@@ -15,14 +15,14 @@ var _ = Describe("Check Command", func() {
 		githubClient *fakes.FakeGitHub
 		command      *resource.CheckCommand
 
-		returnedReleases []github.RepositoryRelease
+		returnedReleases []*github.RepositoryRelease
 	)
 
 	BeforeEach(func() {
 		githubClient = &fakes.FakeGitHub{}
 		command = resource.NewCheckCommand(githubClient)
 
-		returnedReleases = []github.RepositoryRelease{}
+		returnedReleases = []*github.RepositoryRelease{}
 	})
 
 	JustBeforeEach(func() {
@@ -32,7 +32,7 @@ var _ = Describe("Check Command", func() {
 	Context("when this is the first time that the resource has been run", func() {
 		Context("when there are no releases", func() {
 			BeforeEach(func() {
-				returnedReleases = []github.RepositoryRelease{}
+				returnedReleases = []*github.RepositoryRelease{}
 			})
 
 			It("returns no versions", func() {
@@ -44,7 +44,7 @@ var _ = Describe("Check Command", func() {
 
 		Context("when there are releases that get filtered out", func() {
 			BeforeEach(func() {
-				returnedReleases = []github.RepositoryRelease{
+				returnedReleases = []*github.RepositoryRelease{
 					newDraftRepositoryRelease(1, "v0.1.4"),
 				}
 			})
@@ -58,7 +58,7 @@ var _ = Describe("Check Command", func() {
 
 		Context("when there are releases", func() {
 			BeforeEach(func() {
-				returnedReleases = []github.RepositoryRelease{
+				returnedReleases = []*github.RepositoryRelease{
 					newRepositoryRelease(1, "v0.4.0"),
 					newRepositoryRelease(2, "0.1.3"),
 					newRepositoryRelease(3, "v0.1.2"),
@@ -82,7 +82,7 @@ var _ = Describe("Check Command", func() {
 	Context("when there are prior versions", func() {
 		Context("when there are no releases", func() {
 			BeforeEach(func() {
-				returnedReleases = []github.RepositoryRelease{}
+				returnedReleases = []*github.RepositoryRelease{}
 			})
 
 			It("returns no versions", func() {
@@ -95,7 +95,7 @@ var _ = Describe("Check Command", func() {
 		Context("when there are releases", func() {
 			Context("and the releases do not contain a draft release", func() {
 				BeforeEach(func() {
-					returnedReleases = []github.RepositoryRelease{
+					returnedReleases = []*github.RepositoryRelease{
 						newRepositoryRelease(1, "v0.1.4"),
 						newRepositoryRelease(2, "0.4.0"),
 						newRepositoryRelease(3, "v0.1.3"),
@@ -176,7 +176,7 @@ var _ = Describe("Check Command", func() {
 
 			Context("and one of the releases is a draft", func() {
 				BeforeEach(func() {
-					returnedReleases = []github.RepositoryRelease{
+					returnedReleases = []*github.RepositoryRelease{
 						newDraftRepositoryRelease(1, "v0.1.4"),
 						newRepositoryRelease(2, "0.4.0"),
 						newRepositoryRelease(3, "v0.1.3"),
@@ -203,7 +203,7 @@ var _ = Describe("Check Command", func() {
 			Context("when draft releases are allowed", func() {
 				Context("and one of the releases is a final release", func() {
 					BeforeEach(func() {
-						returnedReleases = []github.RepositoryRelease{
+						returnedReleases = []*github.RepositoryRelease{
 							newDraftRepositoryRelease(1, "v0.1.4"),
 							newDraftRepositoryRelease(2, "v0.1.3"),
 							newDraftRepositoryRelease(3, "v0.1.1"),
@@ -243,7 +243,7 @@ var _ = Describe("Check Command", func() {
 
 				Context("and non-of them are semver", func() {
 					BeforeEach(func() {
-						returnedReleases = []github.RepositoryRelease{
+						returnedReleases = []*github.RepositoryRelease{
 							newDraftRepositoryRelease(1, "abc/d"),
 							newDraftRepositoryRelease(2, "123*4"),
 						}
@@ -264,7 +264,7 @@ var _ = Describe("Check Command", func() {
 
 				Context("and one of the releases is not a versioned draft release", func() {
 					BeforeEach(func() {
-						returnedReleases = []github.RepositoryRelease{
+						returnedReleases = []*github.RepositoryRelease{
 							newDraftRepositoryRelease(1, "v0.1.4"),
 							newDraftRepositoryRelease(2, ""),
 							newDraftWithNilTagRepositoryRelease(3),

fakes/fake_git_hub.go

@@ -12,11 +12,11 @@ import (
 )
 
 type FakeGitHub struct {
-	ListReleasesStub        func() ([]github.RepositoryRelease, error)
+	ListReleasesStub        func() ([]*github.RepositoryRelease, error)
 	listReleasesMutex       sync.RWMutex
 	listReleasesArgsForCall []struct{}
-	listReleasesReturns struct {
+	listReleasesReturns     struct {
-		result1 []github.RepositoryRelease
+		result1 []*github.RepositoryRelease
 		result2 error
 	}
 	GetReleaseByTagStub        func(tag string) (*github.RepositoryRelease, error)
@@ -55,13 +55,13 @@ type FakeGitHub struct {
 		result1 *github.RepositoryRelease
 		result2 error
 	}
-	ListReleaseAssetsStub        func(release github.RepositoryRelease) ([]github.ReleaseAsset, error)
+	ListReleaseAssetsStub        func(release github.RepositoryRelease) ([]*github.ReleaseAsset, error)
 	listReleaseAssetsMutex       sync.RWMutex
 	listReleaseAssetsArgsForCall []struct {
 		release github.RepositoryRelease
 	}
 	listReleaseAssetsReturns struct {
-		result1 []github.ReleaseAsset
+		result1 []*github.ReleaseAsset
 		result2 error
 	}
 	UploadReleaseAssetStub        func(release github.RepositoryRelease, name string, file *os.File) error
@@ -111,7 +111,7 @@ type FakeGitHub struct {
 	}
 }
 
-func (fake *FakeGitHub) ListReleases() ([]github.RepositoryRelease, error) {
+func (fake *FakeGitHub) ListReleases() ([]*github.RepositoryRelease, error) {
 	fake.listReleasesMutex.Lock()
 	fake.listReleasesArgsForCall = append(fake.listReleasesArgsForCall, struct{}{})
 	fake.listReleasesMutex.Unlock()
@@ -128,10 +128,10 @@ func (fake *FakeGitHub) ListReleasesCallCount() int {
 	return len(fake.listReleasesArgsForCall)
 }
 
-func (fake *FakeGitHub) ListReleasesReturns(result1 []github.RepositoryRelease, result2 error) {
+func (fake *FakeGitHub) ListReleasesReturns(result1 []*github.RepositoryRelease, result2 error) {
 	fake.ListReleasesStub = nil
 	fake.listReleasesReturns = struct {
-		result1 []github.RepositoryRelease
+		result1 []*github.RepositoryRelease
 		result2 error
 	}{result1, result2}
 }
@@ -268,7 +268,7 @@ func (fake *FakeGitHub) UpdateReleaseReturns(result1 *github.RepositoryRelease,
 	}{result1, result2}
 }
 
-func (fake *FakeGitHub) ListReleaseAssets(release github.RepositoryRelease) ([]github.ReleaseAsset, error) {
+func (fake *FakeGitHub) ListReleaseAssets(release github.RepositoryRelease) ([]*github.ReleaseAsset, error) {
 	fake.listReleaseAssetsMutex.Lock()
 	fake.listReleaseAssetsArgsForCall = append(fake.listReleaseAssetsArgsForCall, struct {
 		release github.RepositoryRelease
@@ -293,10 +293,10 @@ func (fake *FakeGitHub) ListReleaseAssetsArgsForCall(i int) github.RepositoryRel
 	return fake.listReleaseAssetsArgsForCall[i].release
 }
 
-func (fake *FakeGitHub) ListReleaseAssetsReturns(result1 []github.ReleaseAsset, result2 error) {
+func (fake *FakeGitHub) ListReleaseAssetsReturns(result1 []*github.ReleaseAsset, result2 error) {
 	fake.ListReleaseAssetsStub = nil
 	fake.listReleaseAssetsReturns = struct {
-		result1 []github.ReleaseAsset
+		result1 []*github.ReleaseAsset
 		result2 error
 	}{result1, result2}
 }

github.go

@@ -10,19 +10,18 @@ import (
 	"golang.org/x/oauth2"
 
 	"github.com/google/go-github/github"
-	"github.com/xoebus/statham"
 )
 
 //go:generate counterfeiter . GitHub
 
 type GitHub interface {
-	ListReleases() ([]github.RepositoryRelease, error)
+	ListReleases() ([]*github.RepositoryRelease, error)
 	GetReleaseByTag(tag string) (*github.RepositoryRelease, error)
 	GetRelease(id int) (*github.RepositoryRelease, error)
 	CreateRelease(release github.RepositoryRelease) (*github.RepositoryRelease, error)
 	UpdateRelease(release github.RepositoryRelease) (*github.RepositoryRelease, error)
 
-	ListReleaseAssets(release github.RepositoryRelease) ([]github.ReleaseAsset, error)
+	ListReleaseAssets(release github.RepositoryRelease) ([]*github.ReleaseAsset, error)
 	UploadReleaseAsset(release github.RepositoryRelease, name string, file *os.File) error
 	DeleteReleaseAsset(asset github.ReleaseAsset) error
 	DownloadReleaseAsset(asset github.ReleaseAsset) (io.ReadCloser, error)
@@ -156,7 +155,7 @@ func (g *GitHubClient) UpdateRelease(release github.RepositoryRelease) (*github.
 func (g *GitHubClient) ListReleaseAssets(release github.RepositoryRelease) ([]*github.ReleaseAsset, error) {
 	assets, res, err := g.client.Repositories.ListReleaseAssets(g.user, g.repository, *release.ID, nil)
 	if err != nil {
-		return []*github.ReleaseAsset{}, err
+		return nil, err
 	}
 
 	err = res.Body.Close()
@@ -194,11 +193,20 @@ func (g *GitHubClient) DeleteReleaseAsset(asset github.ReleaseAsset) error {
 }
 
 func (g *GitHubClient) DownloadReleaseAsset(asset github.ReleaseAsset) (io.ReadCloser, error) {
-	res, _, err := g.client.Repositories.DownloadReleaseAsset(g.user, g.repository, *asset.ID)
+	res, redir, err := g.client.Repositories.DownloadReleaseAsset(g.user, g.repository, *asset.ID)
 	if err != nil {
 		return nil, err
 	}
 
+	if redir != "" {
+		resp, err := http.Get(redir)
+		if err != nil {
+			return nil, err
+		}
+
+		return resp.Body, nil
+	}
+
 	return res, err
 }
 
@@ -226,40 +234,12 @@ func oauthClient(source Source) (*github.Client, error) {
 	ts := oauth2.StaticTokenSource(&oauth2.Token{
 		AccessToken: source.AccessToken,
 	})
+
 	oauthClient := oauth2.NewClient(oauth2.NoContext, ts)
 
-	apiHost := "api.github.com"
+	githubHTTPClient := &http.Client{
-	if source.GitHubAPIURL != "" {
+		Transport: oauthClient.Transport,
-		uri, err := url.Parse(source.GitHubAPIURL)
-		if err != nil {
-			return nil, err
-		}
-
-		apiHost = uri.Host
 	}
 
-	uploadHost := "uploads.github.com"
+	return github.NewClient(githubHTTPClient), nil
-	if source.GitHubUploadsURL != "" {
-		uri, err := url.Parse(source.GitHubUploadsURL)
-		if err != nil {
-			return nil, err
-		}
-
-		uploadHost = uri.Host
-	}
-
-	// The google/go-github library uses the same http.Client to perform
-	// requests to both github.com and the S3 download API (for downloading
-	// release assets). We don't want it to user the same OAuth transport for
-	// both.
-	transport := statham.NewTransport(http.DefaultTransport, statham.Mapping{
-		apiHost:    oauthClient.Transport,
-		uploadHost: oauthClient.Transport,
-	})
-
-	httpClient := &http.Client{
-		Transport: transport,
-	}
-
-	return github.NewClient(httpClient), nil
 }

in_command.go

@@ -127,14 +127,14 @@ func (c *InCommand) Run(destDir string, request InRequest) (InResponse, error) {
 	}, nil
 }
 
-func (c *InCommand) downloadAsset(asset github.ReleaseAsset, destPath string) error {
+func (c *InCommand) downloadAsset(asset *github.ReleaseAsset, destPath string) error {
 	out, err := os.Create(destPath)
 	if err != nil {
 		return err
 	}
 	defer out.Close()
 
-	content, err := c.github.DownloadReleaseAsset(asset)
+	content, err := c.github.DownloadReleaseAsset(*asset)
 	if err != nil {
 		return err
 	}

in_command_test.go

@@ -77,8 +77,8 @@ var _ = Describe("In Command", func() {
 		}
 	}
 
-	buildAsset := func(id int, name string) github.ReleaseAsset {
+	buildAsset := func(id int, name string) *github.ReleaseAsset {
-		return github.ReleaseAsset{
+		return &github.ReleaseAsset{
 			ID:   github.Int(id),
 			Name: &name,
 		}
@@ -89,7 +89,7 @@ var _ = Describe("In Command", func() {
 			BeforeEach(func() {
 				githubClient.GetReleaseByTagReturns(buildRelease(1, "v0.35.0", false), nil)
 
-				githubClient.ListReleaseAssetsReturns([]github.ReleaseAsset{
+				githubClient.ListReleaseAssetsReturns([]*github.ReleaseAsset{
 					buildAsset(0, "example.txt"),
 					buildAsset(1, "example.rtf"),
 					buildAsset(2, "example.wtf"),
@@ -140,8 +140,8 @@ var _ = Describe("In Command", func() {
 					inResponse, inErr = command.Run(destDir, inRequest)
 
 					Expect(githubClient.DownloadReleaseAssetCallCount()).To(Equal(2))
-					Ω(githubClient.DownloadReleaseAssetArgsForCall(0)).Should(Equal(buildAsset(0, "example.txt")))
+					Ω(githubClient.DownloadReleaseAssetArgsForCall(0)).Should(Equal(*buildAsset(0, "example.txt")))
-					Ω(githubClient.DownloadReleaseAssetArgsForCall(1)).Should(Equal(buildAsset(1, "example.rtf")))
+					Ω(githubClient.DownloadReleaseAssetArgsForCall(1)).Should(Equal(*buildAsset(1, "example.rtf")))
 				})
 
 				It("does create the tag and version files", func() {
@@ -341,9 +341,9 @@ var _ = Describe("In Command", func() {
 				})
 
 				It("downloads all of the files", func() {
-					Ω(githubClient.DownloadReleaseAssetArgsForCall(0)).Should(Equal(buildAsset(0, "example.txt")))
+					Ω(githubClient.DownloadReleaseAssetArgsForCall(0)).Should(Equal(*buildAsset(0, "example.txt")))
-					Ω(githubClient.DownloadReleaseAssetArgsForCall(1)).Should(Equal(buildAsset(1, "example.rtf")))
+					Ω(githubClient.DownloadReleaseAssetArgsForCall(1)).Should(Equal(*buildAsset(1, "example.rtf")))
-					Ω(githubClient.DownloadReleaseAssetArgsForCall(2)).Should(Equal(buildAsset(2, "example.wtf")))
+					Ω(githubClient.DownloadReleaseAssetArgsForCall(2)).Should(Equal(*buildAsset(2, "example.wtf")))
 				})
 			})
 

out_command.go

@@ -75,7 +75,7 @@ func (c *OutCommand) Run(sourceDir string, request OutRequest) (OutResponse, err
 	var existingRelease *github.RepositoryRelease
 	for _, e := range existingReleases {
 		if e.TagName != nil && *e.TagName == tag {
-			existingRelease = &e
+			existingRelease = e
 			break
 		}
 	}
@@ -92,12 +92,14 @@ func (c *OutCommand) Run(sourceDir string, request OutRequest) (OutResponse, err
 
 		if bodySpecified {
 			existingRelease.Body = github.String(body)
+		} else {
+			existingRelease.Body = nil
 		}
 
 		for _, asset := range releaseAssets {
 			fmt.Fprintf(c.writer, "clearing existing asset: %s\n", *asset.Name)
 
-			err := c.github.DeleteReleaseAsset(asset)
+			err := c.github.DeleteReleaseAsset(*asset)
 			if err != nil {
 				return OutResponse{}, err
 			}
@@ -106,13 +108,15 @@ func (c *OutCommand) Run(sourceDir string, request OutRequest) (OutResponse, err
 		fmt.Fprintf(c.writer, "updating release %s\n", name)
 
 		release, err = c.github.UpdateRelease(*existingRelease)
+		if err != nil {
+			return OutResponse{}, err
+		}
 	} else {
 		fmt.Fprintf(c.writer, "creating release %s\n", name)
 		release, err = c.github.CreateRelease(*release)
-	}
+		if err != nil {
-
+			return OutResponse{}, err
-	if err != nil {
+		}
-		return OutResponse{}, err
 	}
 
 	for _, fileGlob := range params.Globs {
@@ -144,7 +148,7 @@ func (c *OutCommand) Run(sourceDir string, request OutRequest) (OutResponse, err
 
 				for _, asset := range assets {
 					if asset.Name != nil && *asset.Name == name {
-						err = c.github.DeleteReleaseAsset(asset)
+						err = c.github.DeleteReleaseAsset(*asset)
 						if err != nil {
 							return OutResponse{}, err
 						}

out_command_test.go

@@ -83,9 +83,25 @@ var _ = Describe("Out Command", func() {
 		}
 
 		BeforeEach(func() {
-			githubClient.ListReleasesReturns(existingReleases, nil)
+			githubClient.ListReleasesStub = func() ([]*github.RepositoryRelease, error) {
+				rels := []*github.RepositoryRelease{}
+				for _, r := range existingReleases {
+					c := r
+					rels = append(rels, &c)
+				}
 
-			githubClient.ListReleaseAssetsReturns(existingAssets, nil)
+				return rels, nil
+			}
+
+			githubClient.ListReleaseAssetsStub = func(github.RepositoryRelease) ([]*github.ReleaseAsset, error) {
+				assets := []*github.ReleaseAsset{}
+				for _, a := range existingAssets {
+					c := a
+					assets = append(assets, &c)
+				}
+
+				return assets, nil
+			}
 
 			namePath := filepath.Join(sourcesDir, "name")
 			bodyPath := filepath.Join(sourcesDir, "body")
@@ -396,7 +412,7 @@ var _ = Describe("Out Command", func() {
 						return nil
 					}
 
-					githubClient.ListReleaseAssetsReturns([]github.ReleaseAsset{
+					githubClient.ListReleaseAssetsReturns([]*github.ReleaseAsset{
 						{
 							ID:   github.Int(456789),
 							Name: github.String("great-file.tgz"),

resource_suite_test.go

@@ -3,9 +3,9 @@ package resource_test
 import (
 	"testing"
 
+	"github.com/google/go-github/github"
 	. "github.com/onsi/ginkgo"
 	. "github.com/onsi/gomega"
-	"github.com/google/go-github/github"
 )
 
 func TestGithubReleaseResource(t *testing.T) {
@@ -13,24 +13,24 @@ func TestGithubReleaseResource(t *testing.T) {
 	RunSpecs(t, "Github Release Resource Suite")
 }
 
-func newRepositoryRelease(id int, version string) github.RepositoryRelease {
+func newRepositoryRelease(id int, version string) *github.RepositoryRelease {
-	return github.RepositoryRelease{
+	return &github.RepositoryRelease{
 		TagName: github.String(version),
 		Draft:   github.Bool(false),
 		ID:      github.Int(id),
 	}
 }
 
-func newDraftRepositoryRelease(id int, version string) github.RepositoryRelease {
+func newDraftRepositoryRelease(id int, version string) *github.RepositoryRelease {
-	return github.RepositoryRelease{
+	return &github.RepositoryRelease{
 		TagName: github.String(version),
 		Draft:   github.Bool(true),
 		ID:      github.Int(id),
 	}
 }
 
-func newDraftWithNilTagRepositoryRelease(id int) github.RepositoryRelease {
+func newDraftWithNilTagRepositoryRelease(id int) *github.RepositoryRelease {
-	return github.RepositoryRelease{
+	return &github.RepositoryRelease{
 		Draft: github.Bool(true),
 		ID:    github.Int(id),
 	}

vendor/github.com/cppforlife/go-semi-semantic/version/ver_seg_comp_int.go

@@ -46,4 +46,6 @@ func (i VerSegCompInt) Compare(other VerSegComp) int {
 	panic("unreachable")
 }
 
+func (i VerSegCompInt) String() string { return i.AsString() }
+
 func (i VerSegCompInt) AsString() string { return strconv.Itoa(i.I) }

vendor/github.com/cppforlife/go-semi-semantic/version/ver_seg_comp_str.go

@@ -40,4 +40,6 @@ func (s VerSegCompStr) Compare(other VerSegComp) int {
 	panic("unreachable")
 }
 
+func (s VerSegCompStr) String() string { return s.AsString() }
+
 func (s VerSegCompStr) AsString() string { return s.S }

vendor/github.com/cppforlife/go-semi-semantic/version/version.go

@@ -20,6 +20,15 @@ type Version struct {
 	Segments []VersionSegment
 }
 
+func MustNewVersionFromString(v string) Version {
+	ver, err := NewVersionFromString(v)
+	if err != nil {
+		panic(fmt.Sprintf("Invalid version '%s': %s", v, err))
+	}
+
+	return ver
+}
+
 func NewVersionFromString(v string) (Version, error) {
 	var err error
 
@@ -76,6 +85,37 @@ func NewVersion(release, preRelease, postRelease VersionSegment) (Version, error
 	return version, nil
 }
 
+func (v Version) IncrementRelease() (Version, error) {
+	incRelease, err := v.Release.Increment()
+	if err != nil {
+		return Version{}, err
+	}
+
+	return NewVersion(incRelease, VersionSegment{}, VersionSegment{})
+}
+
+func (v Version) IncrementPostRelease(defaultPostRelease VersionSegment) (Version, error) {
+	var newPostRelease VersionSegment
+	var err error
+
+	if defaultPostRelease.Empty() {
+		return Version{}, errors.New("Expected default post relase to be non-empty")
+	}
+
+	if v.PostRelease.Empty() {
+		newPostRelease = defaultPostRelease.Copy()
+	} else {
+		newPostRelease, err = v.PostRelease.Increment()
+		if err != nil {
+			return Version{}, err
+		}
+	}
+
+	return NewVersion(v.Release.Copy(), v.PreRelease.Copy(), newPostRelease)
+}
+
+func (v Version) Empty() bool { return len(v.Segments) == 0 }
+
 func (v Version) String() string { return v.AsString() }
 
 func (v Version) AsString() string {

vendor/github.com/cppforlife/go-semi-semantic/version/version_segment.go

@@ -17,6 +17,15 @@ type VersionSegment struct {
 	Components []VerSegComp
 }
 
+func MustNewVersionSegmentFromString(v string) VersionSegment {
+	verSeg, err := NewVersionSegmentFromString(v)
+	if err != nil {
+		panic(fmt.Sprintf("Invalid version segment '%s': %s", v, err))
+	}
+
+	return verSeg
+}
+
 func NewVersionSegmentFromString(v string) (VersionSegment, error) {
 	pieces := strings.Split(v, ".")
 
@@ -57,8 +66,38 @@ func NewVersionSegment(components []VerSegComp) (VersionSegment, error) {
 	return VersionSegment{components}, nil
 }
 
+func (s VersionSegment) Increment() (VersionSegment, error) {
+	if len(s.Components) == 0 {
+		errMsg := "Expected version segment to have at least one component to be incremented"
+		return VersionSegment{}, errors.New(errMsg)
+	}
+
+	lastComp := s.Components[len(s.Components)-1]
+
+	lastCompInt, isInt := lastComp.(VerSegCompInt)
+	if !isInt {
+		errMsg := fmt.Sprintf("Expected version segment '%s' to have last component '%s' to be an integer", s, lastComp)
+		return VersionSegment{}, errors.New(errMsg)
+	}
+
+	copiedComponents := make([]VerSegComp, len(s.Components))
+	copy(copiedComponents, s.Components)
+	copiedComponents[len(copiedComponents)-1] = VerSegCompInt{I: lastCompInt.I + 1}
+
+	return NewVersionSegment(copiedComponents)
+}
+
+func (s VersionSegment) Copy() VersionSegment {
+	// Don't use constructor; assuming that original components are valid
+	copiedComponents := make([]VerSegComp, len(s.Components))
+	copy(copiedComponents, s.Components)
+	return VersionSegment{copiedComponents}
+}
+
 func (s VersionSegment) Empty() bool { return len(s.Components) == 0 }
 
+func (s VersionSegment) String() string { return s.AsString() }
+
 func (s VersionSegment) AsString() string {
 	result := ""
 

vendor/github.com/cppforlife/go-semi-semantic/version/version_sort.go

@@ -0,0 +1,7 @@
+package version
+
+type AscSorting []Version
+
+func (s AscSorting) Len() int           { return len(s) }
+func (s AscSorting) Less(i, j int) bool { return s[i].IsLt(s[j]) }
+func (s AscSorting) Swap(i, j int)      { s[i], s[j] = s[j], s[i] }

vendor/github.com/golang/protobuf/proto/properties.go

@@ -173,7 +173,6 @@ func (sp *StructProperties) Swap(i, j int) { sp.order[i], sp.order[j] = sp.order
 type Properties struct {
 	Name     string // name of the field, for error messages
 	OrigName string // original name before protocol compiler (always set)
-	JSONName string // name to use for JSON; determined by protoc
 	Wire     string
 	WireType int
 	Tag      int
@@ -230,9 +229,8 @@ func (p *Properties) String() string {
 	if p.Packed {
 		s += ",packed"
 	}
-	s += ",name=" + p.OrigName
+	if p.OrigName != p.Name {
-	if p.JSONName != p.OrigName {
+		s += ",name=" + p.OrigName
-		s += ",json=" + p.JSONName
 	}
 	if p.proto3 {
 		s += ",proto3"
@@ -312,8 +310,6 @@ func (p *Properties) Parse(s string) {
 			p.Packed = true
 		case strings.HasPrefix(f, "name="):
 			p.OrigName = f[5:]
-		case strings.HasPrefix(f, "json="):
-			p.JSONName = f[5:]
 		case strings.HasPrefix(f, "enum="):
 			p.Enum = f[5:]
 		case f == "proto3":

vendor/github.com/golang/protobuf/proto/text_parser.go

@@ -119,14 +119,6 @@ func isWhitespace(c byte) bool {
 	return false
 }
 
-func isQuote(c byte) bool {
-	switch c {
-	case '"', '\'':
-		return true
-	}
-	return false
-}
-
 func (p *textParser) skipWhitespace() {
 	i := 0
 	for i < len(p.s) && (isWhitespace(p.s[i]) || p.s[i] == '#') {
@@ -341,13 +333,13 @@ func (p *textParser) next() *token {
 	p.advance()
 	if p.done {
 		p.cur.value = ""
-	} else if len(p.cur.value) > 0 && isQuote(p.cur.value[0]) {
+	} else if len(p.cur.value) > 0 && p.cur.value[0] == '"' {
 		// Look for multiple quoted strings separated by whitespace,
 		// and concatenate them.
 		cat := p.cur
 		for {
 			p.skipWhitespace()
-			if p.done || !isQuote(p.s[0]) {
+			if p.done || p.s[0] != '"' {
 				break
 			}
 			p.advance()

vendor/github.com/google/go-github/github/activity.go

@@ -9,9 +9,7 @@ package github
 // methods of the GitHub API.
 //
 // GitHub API docs: http://developer.github.com/v3/activity/
-type ActivityService struct {
+type ActivityService service
-	client *Client
-}
 
 // FeedLink represents a link to a related resource.
 type FeedLink struct {

vendor/github.com/google/go-github/github/authorizations.go

@@ -47,9 +47,7 @@ const (
 // an OAuth token.
 //
 // GitHub API docs: https://developer.github.com/v3/oauth_authorizations/
-type AuthorizationsService struct {
+type AuthorizationsService service
-	client *Client
-}
 
 // Authorization represents an individual GitHub authorization.
 type Authorization struct {
@@ -85,6 +83,20 @@ func (a AuthorizationApp) String() string {
 	return Stringify(a)
 }
 
+// Grant represents an OAuth application that has been granted access to an account.
+type Grant struct {
+	ID        *int              `json:"id,omitempty"`
+	URL       *string           `json:"url,omitempty"`
+	App       *AuthorizationApp `json:"app,omitempty"`
+	CreatedAt *Timestamp        `json:"created_at,omitempty"`
+	UpdatedAt *Timestamp        `json:"updated_at,omitempty"`
+	Scopes    []string          `json:"scopes,omitempty"`
+}
+
+func (g Grant) String() string {
+	return Stringify(g)
+}
+
 // AuthorizationRequest represents a request to create an authorization.
 type AuthorizationRequest struct {
 	Scopes       []Scope `json:"scopes,omitempty"`
@@ -321,3 +333,104 @@ func (s *AuthorizationsService) Revoke(clientID string, token string) (*Response
 
 	return s.client.Do(req, nil)
 }
+
+// ListGrants lists the set of OAuth applications that have been granted
+// access to a user's account. This will return one entry for each application
+// that has been granted access to the account, regardless of the number of
+// tokens an application has generated for the user.
+//
+// GitHub API docs: https://developer.github.com/v3/oauth_authorizations/#list-your-grants
+func (s *AuthorizationsService) ListGrants() ([]*Grant, *Response, error) {
+	req, err := s.client.NewRequest("GET", "applications/grants", nil)
+	if err != nil {
+		return nil, nil, err
+	}
+
+	// TODO: remove custom Accept header when this API fully launches.
+	req.Header.Set("Accept", mediaTypeOAuthGrantAuthorizationsPreview)
+
+	grants := []*Grant{}
+	resp, err := s.client.Do(req, &grants)
+	if err != nil {
+		return nil, resp, err
+	}
+
+	return grants, resp, err
+}
+
+// GetGrant gets a single OAuth application grant.
+//
+// GitHub API docs: https://developer.github.com/v3/oauth_authorizations/#get-a-single-grant
+func (s *AuthorizationsService) GetGrant(id int) (*Grant, *Response, error) {
+	u := fmt.Sprintf("applications/grants/%d", id)
+	req, err := s.client.NewRequest("GET", u, nil)
+	if err != nil {
+		return nil, nil, err
+	}
+
+	// TODO: remove custom Accept header when this API fully launches.
+	req.Header.Set("Accept", mediaTypeOAuthGrantAuthorizationsPreview)
+
+	grant := new(Grant)
+	resp, err := s.client.Do(req, grant)
+	if err != nil {
+		return nil, resp, err
+	}
+
+	return grant, resp, err
+}
+
+// DeleteGrant deletes an OAuth application grant. Deleting an application's
+// grant will also delete all OAuth tokens associated with the application for
+// the user.
+//
+// GitHub API docs: https://developer.github.com/v3/oauth_authorizations/#delete-a-grant
+func (s *AuthorizationsService) DeleteGrant(id int) (*Response, error) {
+	u := fmt.Sprintf("applications/grants/%d", id)
+	req, err := s.client.NewRequest("DELETE", u, nil)
+	if err != nil {
+		return nil, err
+	}
+
+	// TODO: remove custom Accept header when this API fully launches.
+	req.Header.Set("Accept", mediaTypeOAuthGrantAuthorizationsPreview)
+
+	return s.client.Do(req, nil)
+}
+
+// Create an impersonation OAuth token.
+//
+// This requires admin permissions. With the returned Authorization.Token
+// you can e.g. create or delete a user's public SSH key. NOTE: creating a
+// new token automatically revokes an existing one.
+//
+// GitHub API docs: https://developer.github.com/enterprise/2.5/v3/users/administration/#create-an-impersonation-oauth-token
+func (s *AuthorizationsService) CreateImpersonation(username string, authReq *AuthorizationRequest) (*Authorization, *Response, error) {
+	u := fmt.Sprintf("admin/users/%v/authorizations", username)
+	req, err := s.client.NewRequest("POST", u, authReq)
+	if err != nil {
+		return nil, nil, err
+	}
+
+	a := new(Authorization)
+	resp, err := s.client.Do(req, a)
+	if err != nil {
+		return nil, resp, err
+	}
+	return a, resp, err
+}
+
+// Delete an impersonation OAuth token.
+//
+// NOTE: there can be only one at a time.
+//
+// GitHub API docs: https://developer.github.com/enterprise/2.5/v3/users/administration/#delete-an-impersonation-oauth-token
+func (s *AuthorizationsService) DeleteImpersonation(username string) (*Response, error) {
+	u := fmt.Sprintf("admin/users/%v/authorizations", username)
+	req, err := s.client.NewRequest("DELETE", u, nil)
+	if err != nil {
+		return nil, err
+	}
+
+	return s.client.Do(req, nil)
+}

vendor/github.com/google/go-github/github/event_types.go

@@ -316,12 +316,19 @@ func (p PushEvent) String() string {
 
 // PushEventCommit represents a git commit in a GitHub PushEvent.
 type PushEventCommit struct {
-	SHA       *string       `json:"sha,omitempty"`
+	Message  *string       `json:"message,omitempty"`
-	Message   *string       `json:"message,omitempty"`
+	Author   *CommitAuthor `json:"author,omitempty"`
-	Author    *CommitAuthor `json:"author,omitempty"`
+	URL      *string       `json:"url,omitempty"`
+	Distinct *bool         `json:"distinct,omitempty"`
+
+	// The following fields are only populated by Events API.
+	SHA *string `json:"sha,omitempty"`
+
+	// The following fields are only populated by Webhook events.
+	ID        *string       `json:"id,omitempty"`
+	TreeID    *string       `json:"tree_id,omitempty"`
+	Timestamp *Timestamp    `json:"timestamp,omitempty"`
 	Committer *CommitAuthor `json:"committer,omitempty"`
-	URL       *string       `json:"url,omitempty"`
-	Distinct  *bool         `json:"distinct,omitempty"`
 	Added     []string      `json:"added,omitempty"`
 	Removed   []string      `json:"removed,omitempty"`
 	Modified  []string      `json:"modified,omitempty"`

vendor/github.com/google/go-github/github/gists.go

@@ -14,9 +14,7 @@ import (
 // methods of the GitHub API.
 //
 // GitHub API docs: http://developer.github.com/v3/gists/
-type GistsService struct {
+type GistsService service
-	client *Client
-}
 
 // Gist represents a GitHub's gist.
 type Gist struct {
@@ -52,6 +50,32 @@ func (g GistFile) String() string {
 	return Stringify(g)
 }
 
+// GistCommit represents a commit on a gist.
+type GistCommit struct {
+	URL          *string      `json:"url,omitempty"`
+	Version      *string      `json:"version,omitempty"`
+	User         *User        `json:"user,omitempty"`
+	ChangeStatus *CommitStats `json:"change_status,omitempty"`
+	CommitedAt   *Timestamp   `json:"commited_at,omitempty"`
+}
+
+func (gc GistCommit) String() string {
+	return Stringify(gc)
+}
+
+// GistFork represents a fork of a gist.
+type GistFork struct {
+	URL       *string    `json:"url,omitempty"`
+	User      *User      `json:"user,omitempty"`
+	ID        *string    `json:"id,omitempty"`
+	CreatedAt *Timestamp `json:"created_at,omitempty"`
+	UpdatedAt *Timestamp `json:"updated_at,omitempty"`
+}
+
+func (gf GistFork) String() string {
+	return Stringify(gf)
+}
+
 // GistListOptions specifies the optional parameters to the
 // GistsService.List, GistsService.ListAll, and GistsService.ListStarred methods.
 type GistListOptions struct {
@@ -211,6 +235,25 @@ func (s *GistsService) Edit(id string, gist *Gist) (*Gist, *Response, error) {
 	return g, resp, err
 }
 
+// ListCommits lists commits of a gist.
+//
+// Github API docs: https://developer.github.com/v3/gists/#list-gist-commits
+func (s *GistsService) ListCommits(id string) ([]*GistCommit, *Response, error) {
+	u := fmt.Sprintf("gists/%v/commits", id)
+	req, err := s.client.NewRequest("GET", u, nil)
+	if err != nil {
+		return nil, nil, err
+	}
+
+	gistCommits := new([]*GistCommit)
+	resp, err := s.client.Do(req, gistCommits)
+	if err != nil {
+		return nil, resp, err
+	}
+
+	return *gistCommits, resp, err
+}
+
 // Delete a gist.
 //
 // GitHub API docs: http://developer.github.com/v3/gists/#delete-a-gist
@@ -279,3 +322,22 @@ func (s *GistsService) Fork(id string) (*Gist, *Response, error) {
 
 	return g, resp, err
 }
+
+// ListForks lists forks of a gist.
+//
+// Github API docs: https://developer.github.com/v3/gists/#list-gist-forks
+func (s *GistsService) ListForks(id string) ([]*GistFork, *Response, error) {
+	u := fmt.Sprintf("gists/%v/forks", id)
+	req, err := s.client.NewRequest("GET", u, nil)
+	if err != nil {
+		return nil, nil, err
+	}
+
+	gistForks := new([]*GistFork)
+	resp, err := s.client.Do(req, gistForks)
+	if err != nil {
+		return nil, resp, err
+	}
+
+	return *gistForks, resp, err
+}

vendor/github.com/google/go-github/github/git.go

@@ -9,6 +9,4 @@ package github
 // methods of the GitHub API.
 //
 // GitHub API docs: http://developer.github.com/v3/git/
-type GitService struct {
+type GitService service
-	client *Client
-}

vendor/github.com/google/go-github/github/github.go

@@ -55,9 +55,6 @@ const (
 	// https://developer.github.com/changes/2015-11-11-protected-branches-api/
 	mediaTypeProtectedBranchesPreview = "application/vnd.github.loki-preview+json"
 
-	// https://developer.github.com/changes/2016-02-11-issue-locking-api/
-	mediaTypeIssueLockingPreview = "application/vnd.github.the-key-preview+json"
-
 	// https://help.github.com/enterprise/2.4/admin/guides/migrations/exporting-the-github-com-organization-s-repositories/
 	mediaTypeMigrationsPreview = "application/vnd.github.wyandotte-preview+json"
 
@@ -84,6 +81,9 @@ const (
 
 	// https://developer.github.com/changes/2016-06-14-repository-invitations/
 	mediaTypeRepositoryInvitationsPreview = "application/vnd.github.swamp-thing-preview+json"
+
+	// https://developer.github.com/changes/2016-04-21-oauth-authorizations-grants-api-preview/
+	mediaTypeOAuthGrantAuthorizationsPreview = "application/vnd.github.damage-preview+json"
 )
 
 // A Client manages communication with the GitHub API.
@@ -108,6 +108,8 @@ type Client struct {
 	rateLimits [categories]Rate // Rate limits for the client as determined by the most recent API calls.
 	mostRecent rateLimitCategory
 
+	common service // Reuse a single struct instead of allocating one for each service on the heap.
+
 	// Services used for talking to different parts of the GitHub API.
 	Activity       *ActivityService
 	Authorizations *AuthorizationsService
@@ -125,6 +127,10 @@ type Client struct {
 	Reactions      *ReactionsService
 }
 
+type service struct {
+	client *Client
+}
+
 // ListOptions specifies the optional parameters to various List methods that
 // support pagination.
 type ListOptions struct {
@@ -174,20 +180,21 @@ func NewClient(httpClient *http.Client) *Client {
 	uploadURL, _ := url.Parse(uploadBaseURL)
 
 	c := &Client{client: httpClient, BaseURL: baseURL, UserAgent: userAgent, UploadURL: uploadURL}
-	c.Activity = &ActivityService{client: c}
+	c.common.client = c
-	c.Authorizations = &AuthorizationsService{client: c}
+	c.Activity = (*ActivityService)(&c.common)
-	c.Gists = &GistsService{client: c}
+	c.Authorizations = (*AuthorizationsService)(&c.common)
-	c.Git = &GitService{client: c}
+	c.Gists = (*GistsService)(&c.common)
-	c.Gitignores = &GitignoresService{client: c}
+	c.Git = (*GitService)(&c.common)
-	c.Issues = &IssuesService{client: c}
+	c.Gitignores = (*GitignoresService)(&c.common)
-	c.Organizations = &OrganizationsService{client: c}
+	c.Issues = (*IssuesService)(&c.common)
-	c.PullRequests = &PullRequestsService{client: c}
+	c.Licenses = (*LicensesService)(&c.common)
-	c.Repositories = &RepositoriesService{client: c}
+	c.Migrations = (*MigrationService)(&c.common)
-	c.Search = &SearchService{client: c}
+	c.Organizations = (*OrganizationsService)(&c.common)
-	c.Users = &UsersService{client: c}
+	c.PullRequests = (*PullRequestsService)(&c.common)
-	c.Licenses = &LicensesService{client: c}
+	c.Reactions = (*ReactionsService)(&c.common)
-	c.Migrations = &MigrationService{client: c}
+	c.Repositories = (*RepositoriesService)(&c.common)
-	c.Reactions = &ReactionsService{client: c}
+	c.Search = (*SearchService)(&c.common)
+	c.Users = (*UsersService)(&c.common)
 	return c
 }
 

vendor/github.com/google/go-github/github/gitignore.go

@@ -11,9 +11,7 @@ import "fmt"
 // GitHub API.
 //
 // GitHub API docs: http://developer.github.com/v3/gitignore/
-type GitignoresService struct {
+type GitignoresService service
-	client *Client
-}
 
 // Gitignore represents a .gitignore file as returned by the GitHub API.
 type Gitignore struct {

vendor/github.com/google/go-github/github/issues.go

@@ -14,12 +14,11 @@ import (
 // methods of the GitHub API.
 //
 // GitHub API docs: http://developer.github.com/v3/issues/
-type IssuesService struct {
+type IssuesService service
-	client *Client
-}
 
 // Issue represents a GitHub issue on a repository.
 type Issue struct {
+	ID               *int              `json:"id,omitempty"`
 	Number           *int              `json:"number,omitempty"`
 	State            *string           `json:"state,omitempty"`
 	Title            *string           `json:"title,omitempty"`
@@ -289,9 +288,6 @@ func (s *IssuesService) Lock(owner string, repo string, number int) (*Response,
 		return nil, err
 	}
 
-	// TODO: remove custom Accept header when this API fully launches.
-	req.Header.Set("Accept", mediaTypeIssueLockingPreview)
-
 	return s.client.Do(req, nil)
 }
 
@@ -305,8 +301,5 @@ func (s *IssuesService) Unlock(owner string, repo string, number int) (*Response
 		return nil, err
 	}
 
-	// TODO: remove custom Accept header when this API fully launches.
-	req.Header.Set("Accept", mediaTypeIssueLockingPreview)
-
 	return s.client.Do(req, nil)
 }

vendor/github.com/google/go-github/github/licenses.go

@@ -11,9 +11,7 @@ import "fmt"
 // methods of the GitHub API.
 //
 // GitHub API docs: http://developer.github.com/v3/pulls/
-type LicensesService struct {
+type LicensesService service
-	client *Client
-}
 
 // License represents an open source license.
 type License struct {

vendor/github.com/google/go-github/github/migrations.go

@@ -16,9 +16,7 @@ import (
 // in the GitHub API.
 //
 // GitHub API docs: https://developer.github.com/v3/migration/
-type MigrationService struct {
+type MigrationService service
-	client *Client
-}
 
 // Migration represents a GitHub migration (archival).
 type Migration struct {

vendor/github.com/google/go-github/github/orgs.go

@@ -14,9 +14,7 @@ import (
 // in the GitHub API.
 //
 // GitHub API docs: http://developer.github.com/v3/orgs/
-type OrganizationsService struct {
+type OrganizationsService service
-	client *Client
-}
 
 // Organization represents a GitHub organization account.
 type Organization struct {

vendor/github.com/google/go-github/github/pulls.go

@@ -14,12 +14,11 @@ import (
 // methods of the GitHub API.
 //
 // GitHub API docs: http://developer.github.com/v3/pulls/
-type PullRequestsService struct {
+type PullRequestsService service
-	client *Client
-}
 
 // PullRequest represents a GitHub pull request on a repository.
 type PullRequest struct {
+	ID           *int       `json:"id,omitempty"`
 	Number       *int       `json:"number,omitempty"`
 	State        *string    `json:"state,omitempty"`
 	Title        *string    `json:"title,omitempty"`

vendor/github.com/google/go-github/github/reactions.go

@@ -11,9 +11,7 @@ import "fmt"
 // GitHub API.
 //
 // GitHub API docs: https://developer.github.com/v3/reactions/
-type ReactionsService struct {
+type ReactionsService service
-	client *Client
-}
 
 // Reaction represents a GitHub reaction.
 type Reaction struct {

vendor/github.com/google/go-github/github/repos.go

@@ -11,9 +11,7 @@ import "fmt"
 // methods of the GitHub API.
 //
 // GitHub API docs: http://developer.github.com/v3/repos/
-type RepositoriesService struct {
+type RepositoriesService service
-	client *Client
-}
 
 // Repository represents a GitHub repository.
 type Repository struct {
@@ -110,16 +108,33 @@ func (r Repository) String() string {
 // RepositoryListOptions specifies the optional parameters to the
 // RepositoriesService.List method.
 type RepositoryListOptions struct {
-	// Type of repositories to list.  Possible values are: all, owner, public,
+	// Visibility of repositories to list. Can be one of all, public, or private.
-	// private, member.  Default is "all".
+	// Default: all
+	Visibility string `url:"visibility,omitempty"`
+
+	// List repos of given affiliation[s].
+	// Comma-separated list of values. Can include:
+	// * owner: Repositories that are owned by the authenticated user.
+	// * collaborator: Repositories that the user has been added to as a
+	//   collaborator.
+	// * organization_member: Repositories that the user has access to through
+	//   being a member of an organization. This includes every repository on
+	//   every team that the user is on.
+	// Default: owner,collaborator,organization_member
+	Affiliation string `url:"affiliation,omitempty"`
+
+	// Type of repositories to list.
+	// Can be one of all, owner, public, private, member. Default: all
+	// Will cause a 422 error if used in the same request as visibility or
+	// affiliation.
 	Type string `url:"type,omitempty"`
 
-	// How to sort the repository list.  Possible values are: created, updated,
+	// How to sort the repository list. Can be one of created, updated, pushed,
-	// pushed, full_name.  Default is "full_name".
+	// full_name. Default: full_name
 	Sort string `url:"sort,omitempty"`
 
-	// Direction in which to sort repositories.  Possible values are: asc, desc.
+	// Direction in which to sort repositories. Can be one of asc or desc.
-	// Default is "asc" when sort is "full_name", otherwise default is "desc".
+	// Default: when using full_name: asc; otherwise desc
 	Direction string `url:"direction,omitempty"`
 
 	ListOptions

vendor/github.com/google/go-github/github/repos_commits.go

@@ -33,7 +33,7 @@ func (r RepositoryCommit) String() string {
 	return Stringify(r)
 }
 
-// CommitStats represents the number of additions / deletions from a file in a given RepositoryCommit.
+// CommitStats represents the number of additions / deletions from a file in a given RepositoryCommit or GistCommit.
 type CommitStats struct {
 	Additions *int `json:"additions,omitempty"`
 	Deletions *int `json:"deletions,omitempty"`

vendor/github.com/google/go-github/github/search.go

@@ -15,9 +15,7 @@ import (
 // in the GitHub API.
 //
 // GitHub API docs: http://developer.github.com/v3/search/
-type SearchService struct {
+type SearchService service
-	client *Client
-}
 
 // SearchOptions specifies optional parameters to the SearchService methods.
 type SearchOptions struct {

vendor/github.com/google/go-github/github/users.go

@@ -11,9 +11,7 @@ import "fmt"
 // methods of the GitHub API.
 //
 // GitHub API docs: http://developer.github.com/v3/users/
-type UsersService struct {
+type UsersService service
-	client *Client
-}
 
 // User represents a GitHub user.
 type User struct {

vendor/github.com/google/go-github/github/users_keys.go

@@ -9,10 +9,11 @@ import "fmt"
 
 // Key represents a public SSH key used to authenticate a user or deploy script.
 type Key struct {
-	ID    *int    `json:"id,omitempty"`
+	ID       *int    `json:"id,omitempty"`
-	Key   *string `json:"key,omitempty"`
+	Key      *string `json:"key,omitempty"`
-	URL   *string `json:"url,omitempty"`
+	URL      *string `json:"url,omitempty"`
-	Title *string `json:"title,omitempty"`
+	Title    *string `json:"title,omitempty"`
+	ReadOnly *bool   `json:"read_only,omitempty"`
 }
 
 func (k Key) String() string {

vendor/github.com/google/go-querystring/query/encode.go

@@ -88,8 +88,11 @@ type Encoder interface {
 // same name.  Including the "comma" option signals that the field should be
 // encoded as a single comma-delimited value.  Including the "space" option
 // similarly encodes the value as a single space-delimited string. Including
-// the "brackets" option signals that the multiple URL values should have "[]"
+// the "semicolon" option will encode the value as a semicolon-delimited string.
-// appended to the value name.
+// Including the "brackets" option signals that the multiple URL values should
+// have "[]" appended to the value name. "numbered" will append a number to
+// the end of each incidence of the value name, example:
+// name0=value0&name1=value1, etc.
 //
 // Anonymous struct fields are usually encoded as if their inner exported
 // fields were fields in the outer struct, subject to the standard Go
@@ -138,7 +141,7 @@ func reflectValue(values url.Values, val reflect.Value, scope string) error {
 	typ := val.Type()
 	for i := 0; i < typ.NumField(); i++ {
 		sf := typ.Field(i)
-		if sf.PkgPath != "" { // unexported
+		if sf.PkgPath != "" && !sf.Anonymous { // unexported
 			continue
 		}
 
@@ -184,6 +187,8 @@ func reflectValue(values url.Values, val reflect.Value, scope string) error {
 				del = ','
 			} else if opts.Contains("space") {
 				del = ' '
+			} else if opts.Contains("semicolon") {
+				del = ';'
 			} else if opts.Contains("brackets") {
 				name = name + "[]"
 			}
@@ -202,7 +207,11 @@ func reflectValue(values url.Values, val reflect.Value, scope string) error {
 				values.Add(name, s.String())
 			} else {
 				for i := 0; i < sv.Len(); i++ {
-					values.Add(name, valueString(sv.Index(i), opts))
+					k := name
+					if opts.Contains("numbered") {
+						k = fmt.Sprintf("%s%d", name, i)
+					}
+					values.Add(k, valueString(sv.Index(i), opts))
 				}
 			}
 			continue

vendor/github.com/onsi/ginkgo/.travis.yml

@@ -1,8 +1,8 @@
 language: go
 go:
-  - 1.3
   - 1.4
   - 1.5
+  - 1.6
   - tip
 
 install:

vendor/github.com/onsi/ginkgo/config/config.go

@@ -23,15 +23,16 @@ import (
 const VERSION = "1.2.0"
 
 type GinkgoConfigType struct {
-	RandomSeed        int64
+	RandomSeed         int64
-	RandomizeAllSpecs bool
+	RandomizeAllSpecs  bool
-	FocusString       string
+	RegexScansFilePath bool
-	SkipString        string
+	FocusString        string
-	SkipMeasurements  bool
+	SkipString         string
-	FailOnPending     bool
+	SkipMeasurements   bool
-	FailFast          bool
+	FailOnPending      bool
-	EmitSpecProgress  bool
+	FailFast           bool
-	DryRun            bool
+	EmitSpecProgress   bool
+	DryRun             bool
 
 	ParallelNode  int
 	ParallelTotal int
@@ -66,9 +67,14 @@ func Flags(flagSet *flag.FlagSet, prefix string, includeParallelFlags bool) {
 	flagSet.BoolVar(&(GinkgoConfig.SkipMeasurements), prefix+"skipMeasurements", false, "If set, ginkgo will skip any measurement specs.")
 	flagSet.BoolVar(&(GinkgoConfig.FailOnPending), prefix+"failOnPending", false, "If set, ginkgo will mark the test suite as failed if any specs are pending.")
 	flagSet.BoolVar(&(GinkgoConfig.FailFast), prefix+"failFast", false, "If set, ginkgo will stop running a test suite after a failure occurs.")
+
 	flagSet.BoolVar(&(GinkgoConfig.DryRun), prefix+"dryRun", false, "If set, ginkgo will walk the test hierarchy without actually running anything.  Best paired with -v.")
+
 	flagSet.StringVar(&(GinkgoConfig.FocusString), prefix+"focus", "", "If set, ginkgo will only run specs that match this regular expression.")
 	flagSet.StringVar(&(GinkgoConfig.SkipString), prefix+"skip", "", "If set, ginkgo will only run specs that do not match this regular expression.")
+
+	flagSet.BoolVar(&(GinkgoConfig.RegexScansFilePath), prefix+"regexScansFilePath", false, "If set, ginkgo regex matching also will look at the file path (code location).")
+
 	flagSet.BoolVar(&(GinkgoConfig.EmitSpecProgress), prefix+"progress", false, "If set, ginkgo will emit progress information as each spec runs to the GinkgoWriter.")
 
 	if includeParallelFlags {
@@ -142,6 +148,10 @@ func BuildFlagArgs(prefix string, ginkgo GinkgoConfigType, reporter DefaultRepor
 		result = append(result, fmt.Sprintf("--%sparallel.synchost=%s", prefix, ginkgo.SyncHost))
 	}
 
+	if ginkgo.RegexScansFilePath {
+		result = append(result, fmt.Sprintf("--%sregexScansFilePath", prefix))
+	}
+
 	if reporter.NoColor {
 		result = append(result, fmt.Sprintf("--%snoColor", prefix))
 	}

vendor/github.com/onsi/ginkgo/internal/spec/specs.go

@@ -10,6 +10,7 @@ type Specs struct {
 	specs                 []*Spec
 	numberOfOriginalSpecs int
 	hasProgrammaticFocus  bool
+	RegexScansFilePath    bool
 }
 
 func NewSpecs(specs []*Spec) *Specs {
@@ -45,7 +46,7 @@ func (e *Specs) ApplyFocus(description string, focusString string, skipString st
 	if focusString == "" && skipString == "" {
 		e.applyProgrammaticFocus()
 	} else {
-		e.applyRegExpFocus(description, focusString, skipString)
+		e.applyRegExpFocusAndSkip(description, focusString, skipString)
 	}
 }
 
@@ -67,12 +68,27 @@ func (e *Specs) applyProgrammaticFocus() {
 	}
 }
 
-func (e *Specs) applyRegExpFocus(description string, focusString string, skipString string) {
+// toMatch returns a byte[] to be used by regex matchers.  When adding new behaviours to the matching function,
+// this is the place which we append to.
+func (e *Specs) toMatch(description string, spec *Spec) []byte {
+	if e.RegexScansFilePath {
+		return []byte(
+			description + " " +
+				spec.ConcatenatedString() + " " +
+				spec.subject.CodeLocation().FileName)
+	} else {
+		return []byte(
+			description + " " +
+				spec.ConcatenatedString())
+	}
+}
+
+func (e *Specs) applyRegExpFocusAndSkip(description string, focusString string, skipString string) {
 	for _, spec := range e.specs {
 		matchesFocus := true
 		matchesSkip := false
 
-		toMatch := []byte(description + " " + spec.ConcatenatedString())
+		toMatch := e.toMatch(description, spec)
 
 		if focusString != "" {
 			focusFilter := regexp.MustCompile(focusString)

vendor/github.com/onsi/ginkgo/internal/suite/suite.go

@@ -71,6 +71,7 @@ func (suite *Suite) generateSpecs(description string, config config.GinkgoConfig
 	}
 
 	specs := spec.NewSpecs(specsSlice)
+	specs.RegexScansFilePath = config.RegexScansFilePath
 
 	if config.RandomizeAllSpecs {
 		specs.Shuffle(rand.New(rand.NewSource(config.RandomSeed)))
@@ -85,7 +86,6 @@ func (suite *Suite) generateSpecs(description string, config config.GinkgoConfig
 	if config.ParallelTotal > 1 {
 		specs.TrimForParallelization(config.ParallelTotal, config.ParallelNode)
 	}
-
 	return specs
 }
 

vendor/github.com/onsi/gomega/matchers.go

@@ -26,6 +26,15 @@ func BeEquivalentTo(expected interface{}) types.GomegaMatcher {
 	}
 }
 
+//BeIdenticalTo uses the == operator to compare actual with expected.
+//BeIdenticalTo is strict about types when performing comparisons.
+//It is an error for both actual and expected to be nil.  Use BeNil() instead.
+func BeIdenticalTo(expected interface{}) types.GomegaMatcher {
+	return &matchers.BeIdenticalToMatcher{
+		Expected: expected,
+	}
+}
+
 //BeNil succeeds if actual is nil
 func BeNil() types.GomegaMatcher {
 	return &matchers.BeNilMatcher{}
@@ -205,6 +214,15 @@ func MatchJSON(json interface{}) types.GomegaMatcher {
 	}
 }
 
+//MatchYAML succeeds if actual is a string or stringer of YAML that matches
+//the expected YAML.  The YAML's are decoded and the resulting objects are compared via
+//reflect.DeepEqual so things like key-ordering and whitespace shouldn't matter.
+func MatchYAML(yaml interface{}) types.GomegaMatcher {
+	return &matchers.MatchYAMLMatcher{
+		YAMLToMatch: yaml,
+	}
+}
+
 //BeEmpty succeeds if actual is empty.  Actual must be of type string, array, map, chan, or slice.
 func BeEmpty() types.GomegaMatcher {
 	return &matchers.BeEmptyMatcher{}
@@ -217,6 +235,13 @@ func HaveLen(count int) types.GomegaMatcher {
 	}
 }
 
+//HaveCap succeeds if actual has the passed-in capacity.  Actual must be of type array, chan, or slice.
+func HaveCap(count int) types.GomegaMatcher {
+	return &matchers.HaveCapMatcher{
+		Count: count,
+	}
+}
+
 //BeZero succeeds if actual is the zero value for its type or if actual is nil.
 func BeZero() types.GomegaMatcher {
 	return &matchers.BeZeroMatcher{}

vendor/github.com/onsi/gomega/matchers/be_identical_to.go

@@ -0,0 +1,37 @@
+package matchers
+
+import (
+	"fmt"
+	"runtime"
+
+	"github.com/onsi/gomega/format"
+)
+
+type BeIdenticalToMatcher struct {
+	Expected interface{}
+}
+
+func (matcher *BeIdenticalToMatcher) Match(actual interface{}) (success bool, matchErr error) {
+	if actual == nil && matcher.Expected == nil {
+		return false, fmt.Errorf("Refusing to compare <nil> to <nil>.\nBe explicit and use BeNil() instead.  This is to avoid mistakes where both sides of an assertion are erroneously uninitialized.")
+	}
+
+	defer func() {
+		if r := recover(); r != nil {
+			if _, ok := r.(runtime.Error); ok {
+				success = false
+				matchErr = nil
+			}
+		}
+	}()
+
+	return actual == matcher.Expected, nil
+}
+
+func (matcher *BeIdenticalToMatcher) FailureMessage(actual interface{}) string {
+	return format.Message(actual, "to be identical to", matcher.Expected)
+}
+
+func (matcher *BeIdenticalToMatcher) NegatedFailureMessage(actual interface{}) string {
+	return format.Message(actual, "not to be identical to", matcher.Expected)
+}

vendor/github.com/onsi/gomega/matchers/have_cap_matcher.go

@@ -0,0 +1,28 @@
+package matchers
+
+import (
+	"fmt"
+
+	"github.com/onsi/gomega/format"
+)
+
+type HaveCapMatcher struct {
+	Count int
+}
+
+func (matcher *HaveCapMatcher) Match(actual interface{}) (success bool, err error) {
+	length, ok := capOf(actual)
+	if !ok {
+		return false, fmt.Errorf("HaveCap matcher expects a array/channel/slice.  Got:\n%s", format.Object(actual, 1))
+	}
+
+	return length == matcher.Count, nil
+}
+
+func (matcher *HaveCapMatcher) FailureMessage(actual interface{}) (message string) {
+	return fmt.Sprintf("Expected\n%s\nto have capacity %d", format.Object(actual, 1), matcher.Count)
+}
+
+func (matcher *HaveCapMatcher) NegatedFailureMessage(actual interface{}) (message string) {
+	return fmt.Sprintf("Expected\n%s\nnot to have capacity %d", format.Object(actual, 1), matcher.Count)
+}

vendor/github.com/onsi/gomega/matchers/match_json_matcher.go

@@ -4,8 +4,9 @@ import (
 	"bytes"
 	"encoding/json"
 	"fmt"
-	"github.com/onsi/gomega/format"
 	"reflect"
+
+	"github.com/onsi/gomega/format"
 )
 
 type MatchJSONMatcher struct {
@@ -39,22 +40,24 @@ func (matcher *MatchJSONMatcher) NegatedFailureMessage(actual interface{}) (mess
 }
 
 func (matcher *MatchJSONMatcher) prettyPrint(actual interface{}) (actualFormatted, expectedFormatted string, err error) {
-	actualString, aok := toString(actual)
+	actualString, ok := toString(actual)
-	expectedString, eok := toString(matcher.JSONToMatch)
+	if !ok {
-
+		return "", "", fmt.Errorf("MatchJSONMatcher matcher requires a string, stringer, or []byte.  Got actual:\n%s", format.Object(actual, 1))
-	if !(aok && eok) {
+	}
-		return "", "", fmt.Errorf("MatchJSONMatcher matcher requires a string or stringer.  Got:\n%s", format.Object(actual, 1))
+	expectedString, ok := toString(matcher.JSONToMatch)
+	if !ok {
+		return "", "", fmt.Errorf("MatchJSONMatcher matcher requires a string, stringer, or []byte.  Got expected:\n%s", format.Object(matcher.JSONToMatch, 1))
 	}
 
 	abuf := new(bytes.Buffer)
 	ebuf := new(bytes.Buffer)
 
 	if err := json.Indent(abuf, []byte(actualString), "", "  "); err != nil {
-		return "", "", err
+		return "", "", fmt.Errorf("Actual '%s' should be valid JSON, but it is not.\nUnderlying error:%s", actualString, err)
 	}
 
 	if err := json.Indent(ebuf, []byte(expectedString), "", "  "); err != nil {
-		return "", "", err
+		return "", "", fmt.Errorf("Expected '%s' should be valid JSON, but it is not.\nUnderlying error:%s", expectedString, err)
 	}
 
 	return abuf.String(), ebuf.String(), nil

vendor/github.com/onsi/gomega/matchers/match_yaml_matcher.go

@@ -0,0 +1,74 @@
+package matchers
+
+import (
+	"fmt"
+	"reflect"
+	"strings"
+
+	"github.com/onsi/gomega/format"
+	"gopkg.in/yaml.v2"
+)
+
+type MatchYAMLMatcher struct {
+	YAMLToMatch interface{}
+}
+
+func (matcher *MatchYAMLMatcher) Match(actual interface{}) (success bool, err error) {
+	actualString, expectedString, err := matcher.toStrings(actual)
+	if err != nil {
+		return false, err
+	}
+
+	var aval interface{}
+	var eval interface{}
+
+	if err := yaml.Unmarshal([]byte(actualString), &aval); err != nil {
+		return false, fmt.Errorf("Actual '%s' should be valid YAML, but it is not.\nUnderlying error:%s", actualString, err)
+	}
+	if err := yaml.Unmarshal([]byte(expectedString), &eval); err != nil {
+		return false, fmt.Errorf("Expected '%s' should be valid YAML, but it is not.\nUnderlying error:%s", expectedString, err)
+	}
+
+	return reflect.DeepEqual(aval, eval), nil
+}
+
+func (matcher *MatchYAMLMatcher) FailureMessage(actual interface{}) (message string) {
+	actualString, expectedString, _ := matcher.toNormalisedStrings(actual)
+	return format.Message(actualString, "to match YAML of", expectedString)
+}
+
+func (matcher *MatchYAMLMatcher) NegatedFailureMessage(actual interface{}) (message string) {
+	actualString, expectedString, _ := matcher.toNormalisedStrings(actual)
+	return format.Message(actualString, "not to match YAML of", expectedString)
+}
+
+func (matcher *MatchYAMLMatcher) toNormalisedStrings(actual interface{}) (actualFormatted, expectedFormatted string, err error) {
+	actualString, expectedString, err := matcher.toStrings(actual)
+	return normalise(actualString), normalise(expectedString), err
+}
+
+func normalise(input string) string {
+	var val interface{}
+	err := yaml.Unmarshal([]byte(input), &val)
+	if err != nil {
+		panic(err) // guarded by Match
+	}
+	output, err := yaml.Marshal(val)
+	if err != nil {
+		panic(err) // guarded by Unmarshal
+	}
+	return strings.TrimSpace(string(output))
+}
+
+func (matcher *MatchYAMLMatcher) toStrings(actual interface{}) (actualFormatted, expectedFormatted string, err error) {
+	actualString, ok := toString(actual)
+	if !ok {
+		return "", "", fmt.Errorf("MatchYAMLMatcher matcher requires a string, stringer, or []byte.  Got actual:\n%s", format.Object(actual, 1))
+	}
+	expectedString, ok := toString(matcher.YAMLToMatch)
+	if !ok {
+		return "", "", fmt.Errorf("MatchYAMLMatcher matcher requires a string, stringer, or []byte.  Got expected:\n%s", format.Object(matcher.YAMLToMatch, 1))
+	}
+
+	return actualString, expectedString, nil
+}

vendor/github.com/onsi/gomega/matchers/type_support.go

@@ -150,6 +150,17 @@ func lengthOf(a interface{}) (int, bool) {
 		return 0, false
 	}
 }
+func capOf(a interface{}) (int, bool) {
+	if a == nil {
+		return 0, false
+	}
+	switch reflect.TypeOf(a).Kind() {
+	case reflect.Array, reflect.Chan, reflect.Slice:
+		return reflect.ValueOf(a).Cap(), true
+	default:
+		return 0, false
+	}
+}
 
 func isNil(a interface{}) bool {
 	if a == nil {

vendor/github.com/xoebus/statham/.gitignore

@@ -1,24 +0,0 @@
-# Compiled Object files, Static and Dynamic libs (Shared Objects)
-*.o
-*.a
-*.so
-
-# Folders
-_obj
-_test
-
-# Architecture specific extensions/prefixes
-*.[568vq]
-[568vq].out
-
-*.cgo1.go
-*.cgo2.c
-_cgo_defun.c
-_cgo_gotypes.go
-_cgo_export.*
-
-_testmain.go
-
-*.exe
-*.test
-*.prof

vendor/github.com/xoebus/statham/LICENSE

@@ -1,21 +0,0 @@
-The MIT License (MIT)
-
-Copyright (c) 2016 Chris Brown
-
-Permission is hereby granted, free of charge, to any person obtaining a copy
-of this software and associated documentation files (the "Software"), to deal
-in the Software without restriction, including without limitation the rights
-to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-copies of the Software, and to permit persons to whom the Software is
-furnished to do so, subject to the following conditions:
-
-The above copyright notice and this permission notice shall be included in all
-copies or substantial portions of the Software.
-
-THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
-SOFTWARE.

vendor/github.com/xoebus/statham/README.md

@@ -1,26 +0,0 @@
-# statham
-
-*jason statham is the per-domain transporter*
-
-![Jason Statham in The Transporter](http://i.imgur.com/9EebofV.jpg)
-
-## installation
-
-``` sh
-go get github.com/xoebus/statham
-```
-
-## usage
-
-``` go
-defaultTransport := &http.Transport{...}
-tr1 := &http.Transport{...}
-tr2 := &http.Transport{...}
-
-tr := statham.NewTransport(defaultTransport, statham.Mapping{
-  "github.com": tr1,
-  "google.com": tr2,
-})
-
-client := &http.Client{Transport: tr}
-```

vendor/github.com/xoebus/statham/statham.go

@@ -1,26 +0,0 @@
-package statham
-
-import "net/http"
-
-func NewTransport(defaultTr http.RoundTripper, mapping Mapping) http.RoundTripper {
-	return &roundTripper{
-		defaultTripper: defaultTr,
-		mapping:        mapping,
-	}
-}
-
-type Mapping map[string]http.RoundTripper
-
-type roundTripper struct {
-	defaultTripper http.RoundTripper
-	mapping        Mapping
-}
-
-func (rt *roundTripper) RoundTrip(req *http.Request) (*http.Response, error) {
-	transport, found := rt.mapping[req.URL.Host]
-	if !found {
-		return rt.defaultTripper.RoundTrip(req)
-	}
-
-	return transport.RoundTrip(req)
-}

vendor/golang.org/x/net/context/context.go

@@ -36,12 +36,7 @@
 // Contexts.
 package context
 
-import (
+import "time"
-	"errors"
-	"fmt"
-	"sync"
-	"time"
-)
 
 // A Context carries a deadline, a cancelation signal, and other values across
 // API boundaries.
@@ -66,7 +61,7 @@ type Context interface {
 	//
 	//  // Stream generates values with DoSomething and sends them to out
 	//  // until DoSomething returns an error or ctx.Done is closed.
-	//  func Stream(ctx context.Context, out <-chan Value) error {
+	//  func Stream(ctx context.Context, out chan<- Value) error {
 	//  	for {
 	//  		v, err := DoSomething(ctx)
 	//  		if err != nil {
@@ -138,48 +133,6 @@ type Context interface {
 	Value(key interface{}) interface{}
 }
 
-// Canceled is the error returned by Context.Err when the context is canceled.
-var Canceled = errors.New("context canceled")
-
-// DeadlineExceeded is the error returned by Context.Err when the context's
-// deadline passes.
-var DeadlineExceeded = errors.New("context deadline exceeded")
-
-// An emptyCtx is never canceled, has no values, and has no deadline.  It is not
-// struct{}, since vars of this type must have distinct addresses.
-type emptyCtx int
-
-func (*emptyCtx) Deadline() (deadline time.Time, ok bool) {
-	return
-}
-
-func (*emptyCtx) Done() <-chan struct{} {
-	return nil
-}
-
-func (*emptyCtx) Err() error {
-	return nil
-}
-
-func (*emptyCtx) Value(key interface{}) interface{} {
-	return nil
-}
-
-func (e *emptyCtx) String() string {
-	switch e {
-	case background:
-		return "context.Background"
-	case todo:
-		return "context.TODO"
-	}
-	return "unknown empty Context"
-}
-
-var (
-	background = new(emptyCtx)
-	todo       = new(emptyCtx)
-)
-
 // Background returns a non-nil, empty Context. It is never canceled, has no
 // values, and has no deadline.  It is typically used by the main function,
 // initialization, and tests, and as the top-level Context for incoming
@@ -201,247 +154,3 @@ func TODO() Context {
 // A CancelFunc does not wait for the work to stop.
 // After the first call, subsequent calls to a CancelFunc do nothing.
 type CancelFunc func()
-
-// WithCancel returns a copy of parent with a new Done channel. The returned
-// context's Done channel is closed when the returned cancel function is called
-// or when the parent context's Done channel is closed, whichever happens first.
-//
-// Canceling this context releases resources associated with it, so code should
-// call cancel as soon as the operations running in this Context complete.
-func WithCancel(parent Context) (ctx Context, cancel CancelFunc) {
-	c := newCancelCtx(parent)
-	propagateCancel(parent, &c)
-	return &c, func() { c.cancel(true, Canceled) }
-}
-
-// newCancelCtx returns an initialized cancelCtx.
-func newCancelCtx(parent Context) cancelCtx {
-	return cancelCtx{
-		Context: parent,
-		done:    make(chan struct{}),
-	}
-}
-
-// propagateCancel arranges for child to be canceled when parent is.
-func propagateCancel(parent Context, child canceler) {
-	if parent.Done() == nil {
-		return // parent is never canceled
-	}
-	if p, ok := parentCancelCtx(parent); ok {
-		p.mu.Lock()
-		if p.err != nil {
-			// parent has already been canceled
-			child.cancel(false, p.err)
-		} else {
-			if p.children == nil {
-				p.children = make(map[canceler]bool)
-			}
-			p.children[child] = true
-		}
-		p.mu.Unlock()
-	} else {
-		go func() {
-			select {
-			case <-parent.Done():
-				child.cancel(false, parent.Err())
-			case <-child.Done():
-			}
-		}()
-	}
-}
-
-// parentCancelCtx follows a chain of parent references until it finds a
-// *cancelCtx.  This function understands how each of the concrete types in this
-// package represents its parent.
-func parentCancelCtx(parent Context) (*cancelCtx, bool) {
-	for {
-		switch c := parent.(type) {
-		case *cancelCtx:
-			return c, true
-		case *timerCtx:
-			return &c.cancelCtx, true
-		case *valueCtx:
-			parent = c.Context
-		default:
-			return nil, false
-		}
-	}
-}
-
-// removeChild removes a context from its parent.
-func removeChild(parent Context, child canceler) {
-	p, ok := parentCancelCtx(parent)
-	if !ok {
-		return
-	}
-	p.mu.Lock()
-	if p.children != nil {
-		delete(p.children, child)
-	}
-	p.mu.Unlock()
-}
-
-// A canceler is a context type that can be canceled directly.  The
-// implementations are *cancelCtx and *timerCtx.
-type canceler interface {
-	cancel(removeFromParent bool, err error)
-	Done() <-chan struct{}
-}
-
-// A cancelCtx can be canceled.  When canceled, it also cancels any children
-// that implement canceler.
-type cancelCtx struct {
-	Context
-
-	done chan struct{} // closed by the first cancel call.
-
-	mu       sync.Mutex
-	children map[canceler]bool // set to nil by the first cancel call
-	err      error             // set to non-nil by the first cancel call
-}
-
-func (c *cancelCtx) Done() <-chan struct{} {
-	return c.done
-}
-
-func (c *cancelCtx) Err() error {
-	c.mu.Lock()
-	defer c.mu.Unlock()
-	return c.err
-}
-
-func (c *cancelCtx) String() string {
-	return fmt.Sprintf("%v.WithCancel", c.Context)
-}
-
-// cancel closes c.done, cancels each of c's children, and, if
-// removeFromParent is true, removes c from its parent's children.
-func (c *cancelCtx) cancel(removeFromParent bool, err error) {
-	if err == nil {
-		panic("context: internal error: missing cancel error")
-	}
-	c.mu.Lock()
-	if c.err != nil {
-		c.mu.Unlock()
-		return // already canceled
-	}
-	c.err = err
-	close(c.done)
-	for child := range c.children {
-		// NOTE: acquiring the child's lock while holding parent's lock.
-		child.cancel(false, err)
-	}
-	c.children = nil
-	c.mu.Unlock()
-
-	if removeFromParent {
-		removeChild(c.Context, c)
-	}
-}
-
-// WithDeadline returns a copy of the parent context with the deadline adjusted
-// to be no later than d.  If the parent's deadline is already earlier than d,
-// WithDeadline(parent, d) is semantically equivalent to parent.  The returned
-// context's Done channel is closed when the deadline expires, when the returned
-// cancel function is called, or when the parent context's Done channel is
-// closed, whichever happens first.
-//
-// Canceling this context releases resources associated with it, so code should
-// call cancel as soon as the operations running in this Context complete.
-func WithDeadline(parent Context, deadline time.Time) (Context, CancelFunc) {
-	if cur, ok := parent.Deadline(); ok && cur.Before(deadline) {
-		// The current deadline is already sooner than the new one.
-		return WithCancel(parent)
-	}
-	c := &timerCtx{
-		cancelCtx: newCancelCtx(parent),
-		deadline:  deadline,
-	}
-	propagateCancel(parent, c)
-	d := deadline.Sub(time.Now())
-	if d <= 0 {
-		c.cancel(true, DeadlineExceeded) // deadline has already passed
-		return c, func() { c.cancel(true, Canceled) }
-	}
-	c.mu.Lock()
-	defer c.mu.Unlock()
-	if c.err == nil {
-		c.timer = time.AfterFunc(d, func() {
-			c.cancel(true, DeadlineExceeded)
-		})
-	}
-	return c, func() { c.cancel(true, Canceled) }
-}
-
-// A timerCtx carries a timer and a deadline.  It embeds a cancelCtx to
-// implement Done and Err.  It implements cancel by stopping its timer then
-// delegating to cancelCtx.cancel.
-type timerCtx struct {
-	cancelCtx
-	timer *time.Timer // Under cancelCtx.mu.
-
-	deadline time.Time
-}
-
-func (c *timerCtx) Deadline() (deadline time.Time, ok bool) {
-	return c.deadline, true
-}
-
-func (c *timerCtx) String() string {
-	return fmt.Sprintf("%v.WithDeadline(%s [%s])", c.cancelCtx.Context, c.deadline, c.deadline.Sub(time.Now()))
-}
-
-func (c *timerCtx) cancel(removeFromParent bool, err error) {
-	c.cancelCtx.cancel(false, err)
-	if removeFromParent {
-		// Remove this timerCtx from its parent cancelCtx's children.
-		removeChild(c.cancelCtx.Context, c)
-	}
-	c.mu.Lock()
-	if c.timer != nil {
-		c.timer.Stop()
-		c.timer = nil
-	}
-	c.mu.Unlock()
-}
-
-// WithTimeout returns WithDeadline(parent, time.Now().Add(timeout)).
-//
-// Canceling this context releases resources associated with it, so code should
-// call cancel as soon as the operations running in this Context complete:
-//
-// 	func slowOperationWithTimeout(ctx context.Context) (Result, error) {
-// 		ctx, cancel := context.WithTimeout(ctx, 100*time.Millisecond)
-// 		defer cancel()  // releases resources if slowOperation completes before timeout elapses
-// 		return slowOperation(ctx)
-// 	}
-func WithTimeout(parent Context, timeout time.Duration) (Context, CancelFunc) {
-	return WithDeadline(parent, time.Now().Add(timeout))
-}
-
-// WithValue returns a copy of parent in which the value associated with key is
-// val.
-//
-// Use context Values only for request-scoped data that transits processes and
-// APIs, not for passing optional parameters to functions.
-func WithValue(parent Context, key interface{}, val interface{}) Context {
-	return &valueCtx{parent, key, val}
-}
-
-// A valueCtx carries a key-value pair.  It implements Value for that key and
-// delegates all other calls to the embedded Context.
-type valueCtx struct {
-	Context
-	key, val interface{}
-}
-
-func (c *valueCtx) String() string {
-	return fmt.Sprintf("%v.WithValue(%#v, %#v)", c.Context, c.key, c.val)
-}
-
-func (c *valueCtx) Value(key interface{}) interface{} {
-	if c.key == key {
-		return c.val
-	}
-	return c.Context.Value(key)
-}

vendor/golang.org/x/net/context/go17.go

@@ -0,0 +1,72 @@
+// Copyright 2016 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// +build go1.7
+
+package context
+
+import (
+	"context" // standard library's context, as of Go 1.7
+	"time"
+)
+
+var (
+	todo       = context.TODO()
+	background = context.Background()
+)
+
+// Canceled is the error returned by Context.Err when the context is canceled.
+var Canceled = context.Canceled
+
+// DeadlineExceeded is the error returned by Context.Err when the context's
+// deadline passes.
+var DeadlineExceeded = context.DeadlineExceeded
+
+// WithCancel returns a copy of parent with a new Done channel. The returned
+// context's Done channel is closed when the returned cancel function is called
+// or when the parent context's Done channel is closed, whichever happens first.
+//
+// Canceling this context releases resources associated with it, so code should
+// call cancel as soon as the operations running in this Context complete.
+func WithCancel(parent Context) (ctx Context, cancel CancelFunc) {
+	ctx, f := context.WithCancel(parent)
+	return ctx, CancelFunc(f)
+}
+
+// WithDeadline returns a copy of the parent context with the deadline adjusted
+// to be no later than d.  If the parent's deadline is already earlier than d,
+// WithDeadline(parent, d) is semantically equivalent to parent.  The returned
+// context's Done channel is closed when the deadline expires, when the returned
+// cancel function is called, or when the parent context's Done channel is
+// closed, whichever happens first.
+//
+// Canceling this context releases resources associated with it, so code should
+// call cancel as soon as the operations running in this Context complete.
+func WithDeadline(parent Context, deadline time.Time) (Context, CancelFunc) {
+	ctx, f := context.WithDeadline(parent, deadline)
+	return ctx, CancelFunc(f)
+}
+
+// WithTimeout returns WithDeadline(parent, time.Now().Add(timeout)).
+//
+// Canceling this context releases resources associated with it, so code should
+// call cancel as soon as the operations running in this Context complete:
+//
+// 	func slowOperationWithTimeout(ctx context.Context) (Result, error) {
+// 		ctx, cancel := context.WithTimeout(ctx, 100*time.Millisecond)
+// 		defer cancel()  // releases resources if slowOperation completes before timeout elapses
+// 		return slowOperation(ctx)
+// 	}
+func WithTimeout(parent Context, timeout time.Duration) (Context, CancelFunc) {
+	return WithDeadline(parent, time.Now().Add(timeout))
+}
+
+// WithValue returns a copy of parent in which the value associated with key is
+// val.
+//
+// Use context Values only for request-scoped data that transits processes and
+// APIs, not for passing optional parameters to functions.
+func WithValue(parent Context, key interface{}, val interface{}) Context {
+	return context.WithValue(parent, key, val)
+}

vendor/golang.org/x/net/context/pre_go17.go

@@ -0,0 +1,300 @@
+// Copyright 2014 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// +build !go1.7
+
+package context
+
+import (
+	"errors"
+	"fmt"
+	"sync"
+	"time"
+)
+
+// An emptyCtx is never canceled, has no values, and has no deadline.  It is not
+// struct{}, since vars of this type must have distinct addresses.
+type emptyCtx int
+
+func (*emptyCtx) Deadline() (deadline time.Time, ok bool) {
+	return
+}
+
+func (*emptyCtx) Done() <-chan struct{} {
+	return nil
+}
+
+func (*emptyCtx) Err() error {
+	return nil
+}
+
+func (*emptyCtx) Value(key interface{}) interface{} {
+	return nil
+}
+
+func (e *emptyCtx) String() string {
+	switch e {
+	case background:
+		return "context.Background"
+	case todo:
+		return "context.TODO"
+	}
+	return "unknown empty Context"
+}
+
+var (
+	background = new(emptyCtx)
+	todo       = new(emptyCtx)
+)
+
+// Canceled is the error returned by Context.Err when the context is canceled.
+var Canceled = errors.New("context canceled")
+
+// DeadlineExceeded is the error returned by Context.Err when the context's
+// deadline passes.
+var DeadlineExceeded = errors.New("context deadline exceeded")
+
+// WithCancel returns a copy of parent with a new Done channel. The returned
+// context's Done channel is closed when the returned cancel function is called
+// or when the parent context's Done channel is closed, whichever happens first.
+//
+// Canceling this context releases resources associated with it, so code should
+// call cancel as soon as the operations running in this Context complete.
+func WithCancel(parent Context) (ctx Context, cancel CancelFunc) {
+	c := newCancelCtx(parent)
+	propagateCancel(parent, c)
+	return c, func() { c.cancel(true, Canceled) }
+}
+
+// newCancelCtx returns an initialized cancelCtx.
+func newCancelCtx(parent Context) *cancelCtx {
+	return &cancelCtx{
+		Context: parent,
+		done:    make(chan struct{}),
+	}
+}
+
+// propagateCancel arranges for child to be canceled when parent is.
+func propagateCancel(parent Context, child canceler) {
+	if parent.Done() == nil {
+		return // parent is never canceled
+	}
+	if p, ok := parentCancelCtx(parent); ok {
+		p.mu.Lock()
+		if p.err != nil {
+			// parent has already been canceled
+			child.cancel(false, p.err)
+		} else {
+			if p.children == nil {
+				p.children = make(map[canceler]bool)
+			}
+			p.children[child] = true
+		}
+		p.mu.Unlock()
+	} else {
+		go func() {
+			select {
+			case <-parent.Done():
+				child.cancel(false, parent.Err())
+			case <-child.Done():
+			}
+		}()
+	}
+}
+
+// parentCancelCtx follows a chain of parent references until it finds a
+// *cancelCtx.  This function understands how each of the concrete types in this
+// package represents its parent.
+func parentCancelCtx(parent Context) (*cancelCtx, bool) {
+	for {
+		switch c := parent.(type) {
+		case *cancelCtx:
+			return c, true
+		case *timerCtx:
+			return c.cancelCtx, true
+		case *valueCtx:
+			parent = c.Context
+		default:
+			return nil, false
+		}
+	}
+}
+
+// removeChild removes a context from its parent.
+func removeChild(parent Context, child canceler) {
+	p, ok := parentCancelCtx(parent)
+	if !ok {
+		return
+	}
+	p.mu.Lock()
+	if p.children != nil {
+		delete(p.children, child)
+	}
+	p.mu.Unlock()
+}
+
+// A canceler is a context type that can be canceled directly.  The
+// implementations are *cancelCtx and *timerCtx.
+type canceler interface {
+	cancel(removeFromParent bool, err error)
+	Done() <-chan struct{}
+}
+
+// A cancelCtx can be canceled.  When canceled, it also cancels any children
+// that implement canceler.
+type cancelCtx struct {
+	Context
+
+	done chan struct{} // closed by the first cancel call.
+
+	mu       sync.Mutex
+	children map[canceler]bool // set to nil by the first cancel call
+	err      error             // set to non-nil by the first cancel call
+}
+
+func (c *cancelCtx) Done() <-chan struct{} {
+	return c.done
+}
+
+func (c *cancelCtx) Err() error {
+	c.mu.Lock()
+	defer c.mu.Unlock()
+	return c.err
+}
+
+func (c *cancelCtx) String() string {
+	return fmt.Sprintf("%v.WithCancel", c.Context)
+}
+
+// cancel closes c.done, cancels each of c's children, and, if
+// removeFromParent is true, removes c from its parent's children.
+func (c *cancelCtx) cancel(removeFromParent bool, err error) {
+	if err == nil {
+		panic("context: internal error: missing cancel error")
+	}
+	c.mu.Lock()
+	if c.err != nil {
+		c.mu.Unlock()
+		return // already canceled
+	}
+	c.err = err
+	close(c.done)
+	for child := range c.children {
+		// NOTE: acquiring the child's lock while holding parent's lock.
+		child.cancel(false, err)
+	}
+	c.children = nil
+	c.mu.Unlock()
+
+	if removeFromParent {
+		removeChild(c.Context, c)
+	}
+}
+
+// WithDeadline returns a copy of the parent context with the deadline adjusted
+// to be no later than d.  If the parent's deadline is already earlier than d,
+// WithDeadline(parent, d) is semantically equivalent to parent.  The returned
+// context's Done channel is closed when the deadline expires, when the returned
+// cancel function is called, or when the parent context's Done channel is
+// closed, whichever happens first.
+//
+// Canceling this context releases resources associated with it, so code should
+// call cancel as soon as the operations running in this Context complete.
+func WithDeadline(parent Context, deadline time.Time) (Context, CancelFunc) {
+	if cur, ok := parent.Deadline(); ok && cur.Before(deadline) {
+		// The current deadline is already sooner than the new one.
+		return WithCancel(parent)
+	}
+	c := &timerCtx{
+		cancelCtx: newCancelCtx(parent),
+		deadline:  deadline,
+	}
+	propagateCancel(parent, c)
+	d := deadline.Sub(time.Now())
+	if d <= 0 {
+		c.cancel(true, DeadlineExceeded) // deadline has already passed
+		return c, func() { c.cancel(true, Canceled) }
+	}
+	c.mu.Lock()
+	defer c.mu.Unlock()
+	if c.err == nil {
+		c.timer = time.AfterFunc(d, func() {
+			c.cancel(true, DeadlineExceeded)
+		})
+	}
+	return c, func() { c.cancel(true, Canceled) }
+}
+
+// A timerCtx carries a timer and a deadline.  It embeds a cancelCtx to
+// implement Done and Err.  It implements cancel by stopping its timer then
+// delegating to cancelCtx.cancel.
+type timerCtx struct {
+	*cancelCtx
+	timer *time.Timer // Under cancelCtx.mu.
+
+	deadline time.Time
+}
+
+func (c *timerCtx) Deadline() (deadline time.Time, ok bool) {
+	return c.deadline, true
+}
+
+func (c *timerCtx) String() string {
+	return fmt.Sprintf("%v.WithDeadline(%s [%s])", c.cancelCtx.Context, c.deadline, c.deadline.Sub(time.Now()))
+}
+
+func (c *timerCtx) cancel(removeFromParent bool, err error) {
+	c.cancelCtx.cancel(false, err)
+	if removeFromParent {
+		// Remove this timerCtx from its parent cancelCtx's children.
+		removeChild(c.cancelCtx.Context, c)
+	}
+	c.mu.Lock()
+	if c.timer != nil {
+		c.timer.Stop()
+		c.timer = nil
+	}
+	c.mu.Unlock()
+}
+
+// WithTimeout returns WithDeadline(parent, time.Now().Add(timeout)).
+//
+// Canceling this context releases resources associated with it, so code should
+// call cancel as soon as the operations running in this Context complete:
+//
+// 	func slowOperationWithTimeout(ctx context.Context) (Result, error) {
+// 		ctx, cancel := context.WithTimeout(ctx, 100*time.Millisecond)
+// 		defer cancel()  // releases resources if slowOperation completes before timeout elapses
+// 		return slowOperation(ctx)
+// 	}
+func WithTimeout(parent Context, timeout time.Duration) (Context, CancelFunc) {
+	return WithDeadline(parent, time.Now().Add(timeout))
+}
+
+// WithValue returns a copy of parent in which the value associated with key is
+// val.
+//
+// Use context Values only for request-scoped data that transits processes and
+// APIs, not for passing optional parameters to functions.
+func WithValue(parent Context, key interface{}, val interface{}) Context {
+	return &valueCtx{parent, key, val}
+}
+
+// A valueCtx carries a key-value pair.  It implements Value for that key and
+// delegates all other calls to the embedded Context.
+type valueCtx struct {
+	Context
+	key, val interface{}
+}
+
+func (c *valueCtx) String() string {
+	return fmt.Sprintf("%v.WithValue(%#v, %#v)", c.Context, c.key, c.val)
+}
+
+func (c *valueCtx) Value(key interface{}) interface{} {
+	if c.key == key {
+		return c.val
+	}
+	return c.Context.Value(key)
+}

vendor/golang.org/x/oauth2/.travis.yml

@@ -1,8 +1,7 @@
 language: go
 
 go:
-  - 1.3
+  - tip
-  - 1.4
 
 install:
   - export GOPATH="$HOME/gopath"

vendor/golang.org/x/oauth2/internal/token.go

@@ -92,6 +92,7 @@ func (e *expirationTime) UnmarshalJSON(b []byte) error {
 var brokenAuthHeaderProviders = []string{
 	"https://accounts.google.com/",
 	"https://api.dropbox.com/",
+	"https://api.dropboxapi.com/",
 	"https://api.instagram.com/",
 	"https://api.netatmo.net/",
 	"https://api.odnoklassniki.ru/",
@@ -105,6 +106,7 @@ var brokenAuthHeaderProviders = []string{
 	"https://oauth.sandbox.trainingpeaks.com/",
 	"https://oauth.trainingpeaks.com/",
 	"https://oauth.vk.com/",
+	"https://openapi.baidu.com/",
 	"https://slack.com/",
 	"https://test-sandbox.auth.corp.google.com",
 	"https://test.salesforce.com/",
@@ -113,6 +115,8 @@ var brokenAuthHeaderProviders = []string{
 	"https://www.googleapis.com/",
 	"https://www.linkedin.com/",
 	"https://www.strava.com/oauth/",
+	"https://www.wunderlist.com/oauth/",
+	"https://api.patreon.com/",
 }
 
 func RegisterBrokenAuthHeaderProvider(tokenURL string) {
@@ -142,23 +146,23 @@ func providerAuthHeaderWorks(tokenURL string) bool {
 	return true
 }
 
-func RetrieveToken(ctx context.Context, ClientID, ClientSecret, TokenURL string, v url.Values) (*Token, error) {
+func RetrieveToken(ctx context.Context, clientID, clientSecret, tokenURL string, v url.Values) (*Token, error) {
 	hc, err := ContextClient(ctx)
 	if err != nil {
 		return nil, err
 	}
-	v.Set("client_id", ClientID)
+	v.Set("client_id", clientID)
-	bustedAuth := !providerAuthHeaderWorks(TokenURL)
+	bustedAuth := !providerAuthHeaderWorks(tokenURL)
-	if bustedAuth && ClientSecret != "" {
+	if bustedAuth && clientSecret != "" {
-		v.Set("client_secret", ClientSecret)
+		v.Set("client_secret", clientSecret)
 	}
-	req, err := http.NewRequest("POST", TokenURL, strings.NewReader(v.Encode()))
+	req, err := http.NewRequest("POST", tokenURL, strings.NewReader(v.Encode()))
 	if err != nil {
 		return nil, err
 	}
 	req.Header.Set("Content-Type", "application/x-www-form-urlencoded")
 	if !bustedAuth {
-		req.SetBasicAuth(ClientID, ClientSecret)
+		req.SetBasicAuth(clientID, clientSecret)
 	}
 	r, err := hc.Do(req)
 	if err != nil {

vendor/gopkg.in/yaml.v2/.travis.yml

@@ -0,0 +1,9 @@
+language: go
+
+go:
+    - 1.4
+    - 1.5
+    - 1.6
+    - tip
+
+go_import_path: gopkg.in/yaml.v2

vendor/gopkg.in/yaml.v2/LICENSE

@@ -0,0 +1,188 @@
+
+Copyright (c) 2011-2014 - Canonical Inc.
+
+This software is licensed under the LGPLv3, included below.
+
+As a special exception to the GNU Lesser General Public License version 3
+("LGPL3"), the copyright holders of this Library give you permission to
+convey to a third party a Combined Work that links statically or dynamically
+to this Library without providing any Minimal Corresponding Source or
+Minimal Application Code as set out in 4d or providing the installation
+information set out in section 4e, provided that you comply with the other
+provisions of LGPL3 and provided that you meet, for the Application the
+terms and conditions of the license(s) which apply to the Application.
+
+Except as stated in this special exception, the provisions of LGPL3 will
+continue to comply in full to this Library. If you modify this Library, you
+may apply this exception to your version of this Library, but you are not
+obliged to do so. If you do not wish to do so, delete this exception
+statement from your version. This exception does not (and cannot) modify any
+license terms which apply to the Application, with which you must still
+comply.
+
+
+                   GNU LESSER GENERAL PUBLIC LICENSE
+                       Version 3, 29 June 2007
+
+ Copyright (C) 2007 Free Software Foundation, Inc. <http://fsf.org/>
+ Everyone is permitted to copy and distribute verbatim copies
+ of this license document, but changing it is not allowed.
+
+
+  This version of the GNU Lesser General Public License incorporates
+the terms and conditions of version 3 of the GNU General Public
+License, supplemented by the additional permissions listed below.
+
+  0. Additional Definitions.
+
+  As used herein, "this License" refers to version 3 of the GNU Lesser
+General Public License, and the "GNU GPL" refers to version 3 of the GNU
+General Public License.
+
+  "The Library" refers to a covered work governed by this License,
+other than an Application or a Combined Work as defined below.
+
+  An "Application" is any work that makes use of an interface provided
+by the Library, but which is not otherwise based on the Library.
+Defining a subclass of a class defined by the Library is deemed a mode
+of using an interface provided by the Library.
+
+  A "Combined Work" is a work produced by combining or linking an
+Application with the Library.  The particular version of the Library
+with which the Combined Work was made is also called the "Linked
+Version".
+
+  The "Minimal Corresponding Source" for a Combined Work means the
+Corresponding Source for the Combined Work, excluding any source code
+for portions of the Combined Work that, considered in isolation, are
+based on the Application, and not on the Linked Version.
+
+  The "Corresponding Application Code" for a Combined Work means the
+object code and/or source code for the Application, including any data
+and utility programs needed for reproducing the Combined Work from the
+Application, but excluding the System Libraries of the Combined Work.
+
+  1. Exception to Section 3 of the GNU GPL.
+
+  You may convey a covered work under sections 3 and 4 of this License
+without being bound by section 3 of the GNU GPL.
+
+  2. Conveying Modified Versions.
+
+  If you modify a copy of the Library, and, in your modifications, a
+facility refers to a function or data to be supplied by an Application
+that uses the facility (other than as an argument passed when the
+facility is invoked), then you may convey a copy of the modified
+version:
+
+   a) under this License, provided that you make a good faith effort to
+   ensure that, in the event an Application does not supply the
+   function or data, the facility still operates, and performs
+   whatever part of its purpose remains meaningful, or
+
+   b) under the GNU GPL, with none of the additional permissions of
+   this License applicable to that copy.
+
+  3. Object Code Incorporating Material from Library Header Files.
+
+  The object code form of an Application may incorporate material from
+a header file that is part of the Library.  You may convey such object
+code under terms of your choice, provided that, if the incorporated
+material is not limited to numerical parameters, data structure
+layouts and accessors, or small macros, inline functions and templates
+(ten or fewer lines in length), you do both of the following:
+
+   a) Give prominent notice with each copy of the object code that the
+   Library is used in it and that the Library and its use are
+   covered by this License.
+
+   b) Accompany the object code with a copy of the GNU GPL and this license
+   document.
+
+  4. Combined Works.
+
+  You may convey a Combined Work under terms of your choice that,
+taken together, effectively do not restrict modification of the
+portions of the Library contained in the Combined Work and reverse
+engineering for debugging such modifications, if you also do each of
+the following:
+
+   a) Give prominent notice with each copy of the Combined Work that
+   the Library is used in it and that the Library and its use are
+   covered by this License.
+
+   b) Accompany the Combined Work with a copy of the GNU GPL and this license
+   document.
+
+   c) For a Combined Work that displays copyright notices during
+   execution, include the copyright notice for the Library among
+   these notices, as well as a reference directing the user to the
+   copies of the GNU GPL and this license document.
+
+   d) Do one of the following:
+
+       0) Convey the Minimal Corresponding Source under the terms of this
+       License, and the Corresponding Application Code in a form
+       suitable for, and under terms that permit, the user to
+       recombine or relink the Application with a modified version of
+       the Linked Version to produce a modified Combined Work, in the
+       manner specified by section 6 of the GNU GPL for conveying
+       Corresponding Source.
+
+       1) Use a suitable shared library mechanism for linking with the
+       Library.  A suitable mechanism is one that (a) uses at run time
+       a copy of the Library already present on the user's computer
+       system, and (b) will operate properly with a modified version
+       of the Library that is interface-compatible with the Linked
+       Version.
+
+   e) Provide Installation Information, but only if you would otherwise
+   be required to provide such information under section 6 of the
+   GNU GPL, and only to the extent that such information is
+   necessary to install and execute a modified version of the
+   Combined Work produced by recombining or relinking the
+   Application with a modified version of the Linked Version. (If
+   you use option 4d0, the Installation Information must accompany
+   the Minimal Corresponding Source and Corresponding Application
+   Code. If you use option 4d1, you must provide the Installation
+   Information in the manner specified by section 6 of the GNU GPL
+   for conveying Corresponding Source.)
+
+  5. Combined Libraries.
+
+  You may place library facilities that are a work based on the
+Library side by side in a single library together with other library
+facilities that are not Applications and are not covered by this
+License, and convey such a combined library under terms of your
+choice, if you do both of the following:
+
+   a) Accompany the combined library with a copy of the same work based
+   on the Library, uncombined with any other library facilities,
+   conveyed under the terms of this License.
+
+   b) Give prominent notice with the combined library that part of it
+   is a work based on the Library, and explaining where to find the
+   accompanying uncombined form of the same work.
+
+  6. Revised Versions of the GNU Lesser General Public License.
+
+  The Free Software Foundation may publish revised and/or new versions
+of the GNU Lesser General Public License from time to time. Such new
+versions will be similar in spirit to the present version, but may
+differ in detail to address new problems or concerns.
+
+  Each version is given a distinguishing version number. If the
+Library as you received it specifies that a certain numbered version
+of the GNU Lesser General Public License "or any later version"
+applies to it, you have the option of following the terms and
+conditions either of that published version or of any later version
+published by the Free Software Foundation. If the Library as you
+received it does not specify a version number of the GNU Lesser
+General Public License, you may choose any version of the GNU Lesser
+General Public License ever published by the Free Software Foundation.
+
+  If the Library as you received it specifies that a proxy can decide
+whether future versions of the GNU Lesser General Public License shall
+apply, that proxy's public statement of acceptance of any version is
+permanent authorization for you to choose that version for the
+Library.

vendor/gopkg.in/yaml.v2/LICENSE.libyaml

@@ -0,0 +1,31 @@
+The following files were ported to Go from C files of libyaml, and thus
+are still covered by their original copyright and license:
+
+    apic.go
+    emitterc.go
+    parserc.go
+    readerc.go
+    scannerc.go
+    writerc.go
+    yamlh.go
+    yamlprivateh.go
+
+Copyright (c) 2006 Kirill Simonov
+
+Permission is hereby granted, free of charge, to any person obtaining a copy of
+this software and associated documentation files (the "Software"), to deal in
+the Software without restriction, including without limitation the rights to
+use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
+of the Software, and to permit persons to whom the Software is furnished to do
+so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.

vendor/gopkg.in/yaml.v2/README.md

@@ -0,0 +1,131 @@
+# YAML support for the Go language
+
+Introduction
+------------
+
+The yaml package enables Go programs to comfortably encode and decode YAML
+values. It was developed within [Canonical](https://www.canonical.com) as
+part of the [juju](https://juju.ubuntu.com) project, and is based on a
+pure Go port of the well-known [libyaml](http://pyyaml.org/wiki/LibYAML)
+C library to parse and generate YAML data quickly and reliably.
+
+Compatibility
+-------------
+
+The yaml package supports most of YAML 1.1 and 1.2, including support for
+anchors, tags, map merging, etc. Multi-document unmarshalling is not yet
+implemented, and base-60 floats from YAML 1.1 are purposefully not
+supported since they're a poor design and are gone in YAML 1.2.
+
+Installation and usage
+----------------------
+
+The import path for the package is *gopkg.in/yaml.v2*.
+
+To install it, run:
+
+    go get gopkg.in/yaml.v2
+
+API documentation
+-----------------
+
+If opened in a browser, the import path itself leads to the API documentation:
+
+  * [https://gopkg.in/yaml.v2](https://gopkg.in/yaml.v2)
+
+API stability
+-------------
+
+The package API for yaml v2 will remain stable as described in [gopkg.in](https://gopkg.in).
+
+
+License
+-------
+
+The yaml package is licensed under the LGPL with an exception that allows it to be linked statically. Please see the LICENSE file for details.
+
+
+Example
+-------
+
+```Go
+package main
+
+import (
+        "fmt"
+        "log"
+
+        "gopkg.in/yaml.v2"
+)
+
+var data = `
+a: Easy!
+b:
+  c: 2
+  d: [3, 4]
+`
+
+type T struct {
+        A string
+        B struct {
+                RenamedC int   `yaml:"c"`
+                D        []int `yaml:",flow"`
+        }
+}
+
+func main() {
+        t := T{}
+    
+        err := yaml.Unmarshal([]byte(data), &t)
+        if err != nil {
+                log.Fatalf("error: %v", err)
+        }
+        fmt.Printf("--- t:\n%v\n\n", t)
+    
+        d, err := yaml.Marshal(&t)
+        if err != nil {
+                log.Fatalf("error: %v", err)
+        }
+        fmt.Printf("--- t dump:\n%s\n\n", string(d))
+    
+        m := make(map[interface{}]interface{})
+    
+        err = yaml.Unmarshal([]byte(data), &m)
+        if err != nil {
+                log.Fatalf("error: %v", err)
+        }
+        fmt.Printf("--- m:\n%v\n\n", m)
+    
+        d, err = yaml.Marshal(&m)
+        if err != nil {
+                log.Fatalf("error: %v", err)
+        }
+        fmt.Printf("--- m dump:\n%s\n\n", string(d))
+}
+```
+
+This example will generate the following output:
+
+```
+--- t:
+{Easy! {2 [3 4]}}
+
+--- t dump:
+a: Easy!
+b:
+  c: 2
+  d: [3, 4]
+
+
+--- m:
+map[a:Easy! b:map[c:2 d:[3 4]]]
+
+--- m dump:
+a: Easy!
+b:
+  c: 2
+  d:
+  - 3
+  - 4
+```
+

vendor/gopkg.in/yaml.v2/apic.go

@@ -0,0 +1,742 @@
+package yaml
+
+import (
+	"io"
+	"os"
+)
+
+func yaml_insert_token(parser *yaml_parser_t, pos int, token *yaml_token_t) {
+	//fmt.Println("yaml_insert_token", "pos:", pos, "typ:", token.typ, "head:", parser.tokens_head, "len:", len(parser.tokens))
+
+	// Check if we can move the queue at the beginning of the buffer.
+	if parser.tokens_head > 0 && len(parser.tokens) == cap(parser.tokens) {
+		if parser.tokens_head != len(parser.tokens) {
+			copy(parser.tokens, parser.tokens[parser.tokens_head:])
+		}
+		parser.tokens = parser.tokens[:len(parser.tokens)-parser.tokens_head]
+		parser.tokens_head = 0
+	}
+	parser.tokens = append(parser.tokens, *token)
+	if pos < 0 {
+		return
+	}
+	copy(parser.tokens[parser.tokens_head+pos+1:], parser.tokens[parser.tokens_head+pos:])
+	parser.tokens[parser.tokens_head+pos] = *token
+}
+
+// Create a new parser object.
+func yaml_parser_initialize(parser *yaml_parser_t) bool {
+	*parser = yaml_parser_t{
+		raw_buffer: make([]byte, 0, input_raw_buffer_size),
+		buffer:     make([]byte, 0, input_buffer_size),
+	}
+	return true
+}
+
+// Destroy a parser object.
+func yaml_parser_delete(parser *yaml_parser_t) {
+	*parser = yaml_parser_t{}
+}
+
+// String read handler.
+func yaml_string_read_handler(parser *yaml_parser_t, buffer []byte) (n int, err error) {
+	if parser.input_pos == len(parser.input) {
+		return 0, io.EOF
+	}
+	n = copy(buffer, parser.input[parser.input_pos:])
+	parser.input_pos += n
+	return n, nil
+}
+
+// File read handler.
+func yaml_file_read_handler(parser *yaml_parser_t, buffer []byte) (n int, err error) {
+	return parser.input_file.Read(buffer)
+}
+
+// Set a string input.
+func yaml_parser_set_input_string(parser *yaml_parser_t, input []byte) {
+	if parser.read_handler != nil {
+		panic("must set the input source only once")
+	}
+	parser.read_handler = yaml_string_read_handler
+	parser.input = input
+	parser.input_pos = 0
+}
+
+// Set a file input.
+func yaml_parser_set_input_file(parser *yaml_parser_t, file *os.File) {
+	if parser.read_handler != nil {
+		panic("must set the input source only once")
+	}
+	parser.read_handler = yaml_file_read_handler
+	parser.input_file = file
+}
+
+// Set the source encoding.
+func yaml_parser_set_encoding(parser *yaml_parser_t, encoding yaml_encoding_t) {
+	if parser.encoding != yaml_ANY_ENCODING {
+		panic("must set the encoding only once")
+	}
+	parser.encoding = encoding
+}
+
+// Create a new emitter object.
+func yaml_emitter_initialize(emitter *yaml_emitter_t) bool {
+	*emitter = yaml_emitter_t{
+		buffer:     make([]byte, output_buffer_size),
+		raw_buffer: make([]byte, 0, output_raw_buffer_size),
+		states:     make([]yaml_emitter_state_t, 0, initial_stack_size),
+		events:     make([]yaml_event_t, 0, initial_queue_size),
+	}
+	return true
+}
+
+// Destroy an emitter object.
+func yaml_emitter_delete(emitter *yaml_emitter_t) {
+	*emitter = yaml_emitter_t{}
+}
+
+// String write handler.
+func yaml_string_write_handler(emitter *yaml_emitter_t, buffer []byte) error {
+	*emitter.output_buffer = append(*emitter.output_buffer, buffer...)
+	return nil
+}
+
+// File write handler.
+func yaml_file_write_handler(emitter *yaml_emitter_t, buffer []byte) error {
+	_, err := emitter.output_file.Write(buffer)
+	return err
+}
+
+// Set a string output.
+func yaml_emitter_set_output_string(emitter *yaml_emitter_t, output_buffer *[]byte) {
+	if emitter.write_handler != nil {
+		panic("must set the output target only once")
+	}
+	emitter.write_handler = yaml_string_write_handler
+	emitter.output_buffer = output_buffer
+}
+
+// Set a file output.
+func yaml_emitter_set_output_file(emitter *yaml_emitter_t, file io.Writer) {
+	if emitter.write_handler != nil {
+		panic("must set the output target only once")
+	}
+	emitter.write_handler = yaml_file_write_handler
+	emitter.output_file = file
+}
+
+// Set the output encoding.
+func yaml_emitter_set_encoding(emitter *yaml_emitter_t, encoding yaml_encoding_t) {
+	if emitter.encoding != yaml_ANY_ENCODING {
+		panic("must set the output encoding only once")
+	}
+	emitter.encoding = encoding
+}
+
+// Set the canonical output style.
+func yaml_emitter_set_canonical(emitter *yaml_emitter_t, canonical bool) {
+	emitter.canonical = canonical
+}
+
+//// Set the indentation increment.
+func yaml_emitter_set_indent(emitter *yaml_emitter_t, indent int) {
+	if indent < 2 || indent > 9 {
+		indent = 2
+	}
+	emitter.best_indent = indent
+}
+
+// Set the preferred line width.
+func yaml_emitter_set_width(emitter *yaml_emitter_t, width int) {
+	if width < 0 {
+		width = -1
+	}
+	emitter.best_width = width
+}
+
+// Set if unescaped non-ASCII characters are allowed.
+func yaml_emitter_set_unicode(emitter *yaml_emitter_t, unicode bool) {
+	emitter.unicode = unicode
+}
+
+// Set the preferred line break character.
+func yaml_emitter_set_break(emitter *yaml_emitter_t, line_break yaml_break_t) {
+	emitter.line_break = line_break
+}
+
+///*
+// * Destroy a token object.
+// */
+//
+//YAML_DECLARE(void)
+//yaml_token_delete(yaml_token_t *token)
+//{
+//    assert(token);  // Non-NULL token object expected.
+//
+//    switch (token.type)
+//    {
+//        case YAML_TAG_DIRECTIVE_TOKEN:
+//            yaml_free(token.data.tag_directive.handle);
+//            yaml_free(token.data.tag_directive.prefix);
+//            break;
+//
+//        case YAML_ALIAS_TOKEN:
+//            yaml_free(token.data.alias.value);
+//            break;
+//
+//        case YAML_ANCHOR_TOKEN:
+//            yaml_free(token.data.anchor.value);
+//            break;
+//
+//        case YAML_TAG_TOKEN:
+//            yaml_free(token.data.tag.handle);
+//            yaml_free(token.data.tag.suffix);
+//            break;
+//
+//        case YAML_SCALAR_TOKEN:
+//            yaml_free(token.data.scalar.value);
+//            break;
+//
+//        default:
+//            break;
+//    }
+//
+//    memset(token, 0, sizeof(yaml_token_t));
+//}
+//
+///*
+// * Check if a string is a valid UTF-8 sequence.
+// *
+// * Check 'reader.c' for more details on UTF-8 encoding.
+// */
+//
+//static int
+//yaml_check_utf8(yaml_char_t *start, size_t length)
+//{
+//    yaml_char_t *end = start+length;
+//    yaml_char_t *pointer = start;
+//
+//    while (pointer < end) {
+//        unsigned char octet;
+//        unsigned int width;
+//        unsigned int value;
+//        size_t k;
+//
+//        octet = pointer[0];
+//        width = (octet & 0x80) == 0x00 ? 1 :
+//                (octet & 0xE0) == 0xC0 ? 2 :
+//                (octet & 0xF0) == 0xE0 ? 3 :
+//                (octet & 0xF8) == 0xF0 ? 4 : 0;
+//        value = (octet & 0x80) == 0x00 ? octet & 0x7F :
+//                (octet & 0xE0) == 0xC0 ? octet & 0x1F :
+//                (octet & 0xF0) == 0xE0 ? octet & 0x0F :
+//                (octet & 0xF8) == 0xF0 ? octet & 0x07 : 0;
+//        if (!width) return 0;
+//        if (pointer+width > end) return 0;
+//        for (k = 1; k < width; k ++) {
+//            octet = pointer[k];
+//            if ((octet & 0xC0) != 0x80) return 0;
+//            value = (value << 6) + (octet & 0x3F);
+//        }
+//        if (!((width == 1) ||
+//            (width == 2 && value >= 0x80) ||
+//            (width == 3 && value >= 0x800) ||
+//            (width == 4 && value >= 0x10000))) return 0;
+//
+//        pointer += width;
+//    }
+//
+//    return 1;
+//}
+//
+
+// Create STREAM-START.
+func yaml_stream_start_event_initialize(event *yaml_event_t, encoding yaml_encoding_t) bool {
+	*event = yaml_event_t{
+		typ:      yaml_STREAM_START_EVENT,
+		encoding: encoding,
+	}
+	return true
+}
+
+// Create STREAM-END.
+func yaml_stream_end_event_initialize(event *yaml_event_t) bool {
+	*event = yaml_event_t{
+		typ: yaml_STREAM_END_EVENT,
+	}
+	return true
+}
+
+// Create DOCUMENT-START.
+func yaml_document_start_event_initialize(event *yaml_event_t, version_directive *yaml_version_directive_t,
+	tag_directives []yaml_tag_directive_t, implicit bool) bool {
+	*event = yaml_event_t{
+		typ:               yaml_DOCUMENT_START_EVENT,
+		version_directive: version_directive,
+		tag_directives:    tag_directives,
+		implicit:          implicit,
+	}
+	return true
+}
+
+// Create DOCUMENT-END.
+func yaml_document_end_event_initialize(event *yaml_event_t, implicit bool) bool {
+	*event = yaml_event_t{
+		typ:      yaml_DOCUMENT_END_EVENT,
+		implicit: implicit,
+	}
+	return true
+}
+
+///*
+// * Create ALIAS.
+// */
+//
+//YAML_DECLARE(int)
+//yaml_alias_event_initialize(event *yaml_event_t, anchor *yaml_char_t)
+//{
+//    mark yaml_mark_t = { 0, 0, 0 }
+//    anchor_copy *yaml_char_t = NULL
+//
+//    assert(event) // Non-NULL event object is expected.
+//    assert(anchor) // Non-NULL anchor is expected.
+//
+//    if (!yaml_check_utf8(anchor, strlen((char *)anchor))) return 0
+//
+//    anchor_copy = yaml_strdup(anchor)
+//    if (!anchor_copy)
+//        return 0
+//
+//    ALIAS_EVENT_INIT(*event, anchor_copy, mark, mark)
+//
+//    return 1
+//}
+
+// Create SCALAR.
+func yaml_scalar_event_initialize(event *yaml_event_t, anchor, tag, value []byte, plain_implicit, quoted_implicit bool, style yaml_scalar_style_t) bool {
+	*event = yaml_event_t{
+		typ:             yaml_SCALAR_EVENT,
+		anchor:          anchor,
+		tag:             tag,
+		value:           value,
+		implicit:        plain_implicit,
+		quoted_implicit: quoted_implicit,
+		style:           yaml_style_t(style),
+	}
+	return true
+}
+
+// Create SEQUENCE-START.
+func yaml_sequence_start_event_initialize(event *yaml_event_t, anchor, tag []byte, implicit bool, style yaml_sequence_style_t) bool {
+	*event = yaml_event_t{
+		typ:      yaml_SEQUENCE_START_EVENT,
+		anchor:   anchor,
+		tag:      tag,
+		implicit: implicit,
+		style:    yaml_style_t(style),
+	}
+	return true
+}
+
+// Create SEQUENCE-END.
+func yaml_sequence_end_event_initialize(event *yaml_event_t) bool {
+	*event = yaml_event_t{
+		typ: yaml_SEQUENCE_END_EVENT,
+	}
+	return true
+}
+
+// Create MAPPING-START.
+func yaml_mapping_start_event_initialize(event *yaml_event_t, anchor, tag []byte, implicit bool, style yaml_mapping_style_t) bool {
+	*event = yaml_event_t{
+		typ:      yaml_MAPPING_START_EVENT,
+		anchor:   anchor,
+		tag:      tag,
+		implicit: implicit,
+		style:    yaml_style_t(style),
+	}
+	return true
+}
+
+// Create MAPPING-END.
+func yaml_mapping_end_event_initialize(event *yaml_event_t) bool {
+	*event = yaml_event_t{
+		typ: yaml_MAPPING_END_EVENT,
+	}
+	return true
+}
+
+// Destroy an event object.
+func yaml_event_delete(event *yaml_event_t) {
+	*event = yaml_event_t{}
+}
+
+///*
+// * Create a document object.
+// */
+//
+//YAML_DECLARE(int)
+//yaml_document_initialize(document *yaml_document_t,
+//        version_directive *yaml_version_directive_t,
+//        tag_directives_start *yaml_tag_directive_t,
+//        tag_directives_end *yaml_tag_directive_t,
+//        start_implicit int, end_implicit int)
+//{
+//    struct {
+//        error yaml_error_type_t
+//    } context
+//    struct {
+//        start *yaml_node_t
+//        end *yaml_node_t
+//        top *yaml_node_t
+//    } nodes = { NULL, NULL, NULL }
+//    version_directive_copy *yaml_version_directive_t = NULL
+//    struct {
+//        start *yaml_tag_directive_t
+//        end *yaml_tag_directive_t
+//        top *yaml_tag_directive_t
+//    } tag_directives_copy = { NULL, NULL, NULL }
+//    value yaml_tag_directive_t = { NULL, NULL }
+//    mark yaml_mark_t = { 0, 0, 0 }
+//
+//    assert(document) // Non-NULL document object is expected.
+//    assert((tag_directives_start && tag_directives_end) ||
+//            (tag_directives_start == tag_directives_end))
+//                            // Valid tag directives are expected.
+//
+//    if (!STACK_INIT(&context, nodes, INITIAL_STACK_SIZE)) goto error
+//
+//    if (version_directive) {
+//        version_directive_copy = yaml_malloc(sizeof(yaml_version_directive_t))
+//        if (!version_directive_copy) goto error
+//        version_directive_copy.major = version_directive.major
+//        version_directive_copy.minor = version_directive.minor
+//    }
+//
+//    if (tag_directives_start != tag_directives_end) {
+//        tag_directive *yaml_tag_directive_t
+//        if (!STACK_INIT(&context, tag_directives_copy, INITIAL_STACK_SIZE))
+//            goto error
+//        for (tag_directive = tag_directives_start
+//                tag_directive != tag_directives_end; tag_directive ++) {
+//            assert(tag_directive.handle)
+//            assert(tag_directive.prefix)
+//            if (!yaml_check_utf8(tag_directive.handle,
+//                        strlen((char *)tag_directive.handle)))
+//                goto error
+//            if (!yaml_check_utf8(tag_directive.prefix,
+//                        strlen((char *)tag_directive.prefix)))
+//                goto error
+//            value.handle = yaml_strdup(tag_directive.handle)
+//            value.prefix = yaml_strdup(tag_directive.prefix)
+//            if (!value.handle || !value.prefix) goto error
+//            if (!PUSH(&context, tag_directives_copy, value))
+//                goto error
+//            value.handle = NULL
+//            value.prefix = NULL
+//        }
+//    }
+//
+//    DOCUMENT_INIT(*document, nodes.start, nodes.end, version_directive_copy,
+//            tag_directives_copy.start, tag_directives_copy.top,
+//            start_implicit, end_implicit, mark, mark)
+//
+//    return 1
+//
+//error:
+//    STACK_DEL(&context, nodes)
+//    yaml_free(version_directive_copy)
+//    while (!STACK_EMPTY(&context, tag_directives_copy)) {
+//        value yaml_tag_directive_t = POP(&context, tag_directives_copy)
+//        yaml_free(value.handle)
+//        yaml_free(value.prefix)
+//    }
+//    STACK_DEL(&context, tag_directives_copy)
+//    yaml_free(value.handle)
+//    yaml_free(value.prefix)
+//
+//    return 0
+//}
+//
+///*
+// * Destroy a document object.
+// */
+//
+//YAML_DECLARE(void)
+//yaml_document_delete(document *yaml_document_t)
+//{
+//    struct {
+//        error yaml_error_type_t
+//    } context
+//    tag_directive *yaml_tag_directive_t
+//
+//    context.error = YAML_NO_ERROR // Eliminate a compliler warning.
+//
+//    assert(document) // Non-NULL document object is expected.
+//
+//    while (!STACK_EMPTY(&context, document.nodes)) {
+//        node yaml_node_t = POP(&context, document.nodes)
+//        yaml_free(node.tag)
+//        switch (node.type) {
+//            case YAML_SCALAR_NODE:
+//                yaml_free(node.data.scalar.value)
+//                break
+//            case YAML_SEQUENCE_NODE:
+//                STACK_DEL(&context, node.data.sequence.items)
+//                break
+//            case YAML_MAPPING_NODE:
+//                STACK_DEL(&context, node.data.mapping.pairs)
+//                break
+//            default:
+//                assert(0) // Should not happen.
+//        }
+//    }
+//    STACK_DEL(&context, document.nodes)
+//
+//    yaml_free(document.version_directive)
+//    for (tag_directive = document.tag_directives.start
+//            tag_directive != document.tag_directives.end
+//            tag_directive++) {
+//        yaml_free(tag_directive.handle)
+//        yaml_free(tag_directive.prefix)
+//    }
+//    yaml_free(document.tag_directives.start)
+//
+//    memset(document, 0, sizeof(yaml_document_t))
+//}
+//
+///**
+// * Get a document node.
+// */
+//
+//YAML_DECLARE(yaml_node_t *)
+//yaml_document_get_node(document *yaml_document_t, index int)
+//{
+//    assert(document) // Non-NULL document object is expected.
+//
+//    if (index > 0 && document.nodes.start + index <= document.nodes.top) {
+//        return document.nodes.start + index - 1
+//    }
+//    return NULL
+//}
+//
+///**
+// * Get the root object.
+// */
+//
+//YAML_DECLARE(yaml_node_t *)
+//yaml_document_get_root_node(document *yaml_document_t)
+//{
+//    assert(document) // Non-NULL document object is expected.
+//
+//    if (document.nodes.top != document.nodes.start) {
+//        return document.nodes.start
+//    }
+//    return NULL
+//}
+//
+///*
+// * Add a scalar node to a document.
+// */
+//
+//YAML_DECLARE(int)
+//yaml_document_add_scalar(document *yaml_document_t,
+//        tag *yaml_char_t, value *yaml_char_t, length int,
+//        style yaml_scalar_style_t)
+//{
+//    struct {
+//        error yaml_error_type_t
+//    } context
+//    mark yaml_mark_t = { 0, 0, 0 }
+//    tag_copy *yaml_char_t = NULL
+//    value_copy *yaml_char_t = NULL
+//    node yaml_node_t
+//
+//    assert(document) // Non-NULL document object is expected.
+//    assert(value) // Non-NULL value is expected.
+//
+//    if (!tag) {
+//        tag = (yaml_char_t *)YAML_DEFAULT_SCALAR_TAG
+//    }
+//
+//    if (!yaml_check_utf8(tag, strlen((char *)tag))) goto error
+//    tag_copy = yaml_strdup(tag)
+//    if (!tag_copy) goto error
+//
+//    if (length < 0) {
+//        length = strlen((char *)value)
+//    }
+//
+//    if (!yaml_check_utf8(value, length)) goto error
+//    value_copy = yaml_malloc(length+1)
+//    if (!value_copy) goto error
+//    memcpy(value_copy, value, length)
+//    value_copy[length] = '\0'
+//
+//    SCALAR_NODE_INIT(node, tag_copy, value_copy, length, style, mark, mark)
+//    if (!PUSH(&context, document.nodes, node)) goto error
+//
+//    return document.nodes.top - document.nodes.start
+//
+//error:
+//    yaml_free(tag_copy)
+//    yaml_free(value_copy)
+//
+//    return 0
+//}
+//
+///*
+// * Add a sequence node to a document.
+// */
+//
+//YAML_DECLARE(int)
+//yaml_document_add_sequence(document *yaml_document_t,
+//        tag *yaml_char_t, style yaml_sequence_style_t)
+//{
+//    struct {
+//        error yaml_error_type_t
+//    } context
+//    mark yaml_mark_t = { 0, 0, 0 }
+//    tag_copy *yaml_char_t = NULL
+//    struct {
+//        start *yaml_node_item_t
+//        end *yaml_node_item_t
+//        top *yaml_node_item_t
+//    } items = { NULL, NULL, NULL }
+//    node yaml_node_t
+//
+//    assert(document) // Non-NULL document object is expected.
+//
+//    if (!tag) {
+//        tag = (yaml_char_t *)YAML_DEFAULT_SEQUENCE_TAG
+//    }
+//
+//    if (!yaml_check_utf8(tag, strlen((char *)tag))) goto error
+//    tag_copy = yaml_strdup(tag)
+//    if (!tag_copy) goto error
+//
+//    if (!STACK_INIT(&context, items, INITIAL_STACK_SIZE)) goto error
+//
+//    SEQUENCE_NODE_INIT(node, tag_copy, items.start, items.end,
+//            style, mark, mark)
+//    if (!PUSH(&context, document.nodes, node)) goto error
+//
+//    return document.nodes.top - document.nodes.start
+//
+//error:
+//    STACK_DEL(&context, items)
+//    yaml_free(tag_copy)
+//
+//    return 0
+//}
+//
+///*
+// * Add a mapping node to a document.
+// */
+//
+//YAML_DECLARE(int)
+//yaml_document_add_mapping(document *yaml_document_t,
+//        tag *yaml_char_t, style yaml_mapping_style_t)
+//{
+//    struct {
+//        error yaml_error_type_t
+//    } context
+//    mark yaml_mark_t = { 0, 0, 0 }
+//    tag_copy *yaml_char_t = NULL
+//    struct {
+//        start *yaml_node_pair_t
+//        end *yaml_node_pair_t
+//        top *yaml_node_pair_t
+//    } pairs = { NULL, NULL, NULL }
+//    node yaml_node_t
+//
+//    assert(document) // Non-NULL document object is expected.
+//
+//    if (!tag) {
+//        tag = (yaml_char_t *)YAML_DEFAULT_MAPPING_TAG
+//    }
+//
+//    if (!yaml_check_utf8(tag, strlen((char *)tag))) goto error
+//    tag_copy = yaml_strdup(tag)
+//    if (!tag_copy) goto error
+//
+//    if (!STACK_INIT(&context, pairs, INITIAL_STACK_SIZE)) goto error
+//
+//    MAPPING_NODE_INIT(node, tag_copy, pairs.start, pairs.end,
+//            style, mark, mark)
+//    if (!PUSH(&context, document.nodes, node)) goto error
+//
+//    return document.nodes.top - document.nodes.start
+//
+//error:
+//    STACK_DEL(&context, pairs)
+//    yaml_free(tag_copy)
+//
+//    return 0
+//}
+//
+///*
+// * Append an item to a sequence node.
+// */
+//
+//YAML_DECLARE(int)
+//yaml_document_append_sequence_item(document *yaml_document_t,
+//        sequence int, item int)
+//{
+//    struct {
+//        error yaml_error_type_t
+//    } context
+//
+//    assert(document) // Non-NULL document is required.
+//    assert(sequence > 0
+//            && document.nodes.start + sequence <= document.nodes.top)
+//                            // Valid sequence id is required.
+//    assert(document.nodes.start[sequence-1].type == YAML_SEQUENCE_NODE)
+//                            // A sequence node is required.
+//    assert(item > 0 && document.nodes.start + item <= document.nodes.top)
+//                            // Valid item id is required.
+//
+//    if (!PUSH(&context,
+//                document.nodes.start[sequence-1].data.sequence.items, item))
+//        return 0
+//
+//    return 1
+//}
+//
+///*
+// * Append a pair of a key and a value to a mapping node.
+// */
+//
+//YAML_DECLARE(int)
+//yaml_document_append_mapping_pair(document *yaml_document_t,
+//        mapping int, key int, value int)
+//{
+//    struct {
+//        error yaml_error_type_t
+//    } context
+//
+//    pair yaml_node_pair_t
+//
+//    assert(document) // Non-NULL document is required.
+//    assert(mapping > 0
+//            && document.nodes.start + mapping <= document.nodes.top)
+//                            // Valid mapping id is required.
+//    assert(document.nodes.start[mapping-1].type == YAML_MAPPING_NODE)
+//                            // A mapping node is required.
+//    assert(key > 0 && document.nodes.start + key <= document.nodes.top)
+//                            // Valid key id is required.
+//    assert(value > 0 && document.nodes.start + value <= document.nodes.top)
+//                            // Valid value id is required.
+//
+//    pair.key = key
+//    pair.value = value
+//
+//    if (!PUSH(&context,
+//                document.nodes.start[mapping-1].data.mapping.pairs, pair))
+//        return 0
+//
+//    return 1
+//}
+//
+//

vendor/gopkg.in/yaml.v2/decode.go

@@ -0,0 +1,683 @@
+package yaml
+
+import (
+	"encoding"
+	"encoding/base64"
+	"fmt"
+	"math"
+	"reflect"
+	"strconv"
+	"time"
+)
+
+const (
+	documentNode = 1 << iota
+	mappingNode
+	sequenceNode
+	scalarNode
+	aliasNode
+)
+
+type node struct {
+	kind         int
+	line, column int
+	tag          string
+	value        string
+	implicit     bool
+	children     []*node
+	anchors      map[string]*node
+}
+
+// ----------------------------------------------------------------------------
+// Parser, produces a node tree out of a libyaml event stream.
+
+type parser struct {
+	parser yaml_parser_t
+	event  yaml_event_t
+	doc    *node
+}
+
+func newParser(b []byte) *parser {
+	p := parser{}
+	if !yaml_parser_initialize(&p.parser) {
+		panic("failed to initialize YAML emitter")
+	}
+
+	if len(b) == 0 {
+		b = []byte{'\n'}
+	}
+
+	yaml_parser_set_input_string(&p.parser, b)
+
+	p.skip()
+	if p.event.typ != yaml_STREAM_START_EVENT {
+		panic("expected stream start event, got " + strconv.Itoa(int(p.event.typ)))
+	}
+	p.skip()
+	return &p
+}
+
+func (p *parser) destroy() {
+	if p.event.typ != yaml_NO_EVENT {
+		yaml_event_delete(&p.event)
+	}
+	yaml_parser_delete(&p.parser)
+}
+
+func (p *parser) skip() {
+	if p.event.typ != yaml_NO_EVENT {
+		if p.event.typ == yaml_STREAM_END_EVENT {
+			failf("attempted to go past the end of stream; corrupted value?")
+		}
+		yaml_event_delete(&p.event)
+	}
+	if !yaml_parser_parse(&p.parser, &p.event) {
+		p.fail()
+	}
+}
+
+func (p *parser) fail() {
+	var where string
+	var line int
+	if p.parser.problem_mark.line != 0 {
+		line = p.parser.problem_mark.line
+	} else if p.parser.context_mark.line != 0 {
+		line = p.parser.context_mark.line
+	}
+	if line != 0 {
+		where = "line " + strconv.Itoa(line) + ": "
+	}
+	var msg string
+	if len(p.parser.problem) > 0 {
+		msg = p.parser.problem
+	} else {
+		msg = "unknown problem parsing YAML content"
+	}
+	failf("%s%s", where, msg)
+}
+
+func (p *parser) anchor(n *node, anchor []byte) {
+	if anchor != nil {
+		p.doc.anchors[string(anchor)] = n
+	}
+}
+
+func (p *parser) parse() *node {
+	switch p.event.typ {
+	case yaml_SCALAR_EVENT:
+		return p.scalar()
+	case yaml_ALIAS_EVENT:
+		return p.alias()
+	case yaml_MAPPING_START_EVENT:
+		return p.mapping()
+	case yaml_SEQUENCE_START_EVENT:
+		return p.sequence()
+	case yaml_DOCUMENT_START_EVENT:
+		return p.document()
+	case yaml_STREAM_END_EVENT:
+		// Happens when attempting to decode an empty buffer.
+		return nil
+	default:
+		panic("attempted to parse unknown event: " + strconv.Itoa(int(p.event.typ)))
+	}
+	panic("unreachable")
+}
+
+func (p *parser) node(kind int) *node {
+	return &node{
+		kind:   kind,
+		line:   p.event.start_mark.line,
+		column: p.event.start_mark.column,
+	}
+}
+
+func (p *parser) document() *node {
+	n := p.node(documentNode)
+	n.anchors = make(map[string]*node)
+	p.doc = n
+	p.skip()
+	n.children = append(n.children, p.parse())
+	if p.event.typ != yaml_DOCUMENT_END_EVENT {
+		panic("expected end of document event but got " + strconv.Itoa(int(p.event.typ)))
+	}
+	p.skip()
+	return n
+}
+
+func (p *parser) alias() *node {
+	n := p.node(aliasNode)
+	n.value = string(p.event.anchor)
+	p.skip()
+	return n
+}
+
+func (p *parser) scalar() *node {
+	n := p.node(scalarNode)
+	n.value = string(p.event.value)
+	n.tag = string(p.event.tag)
+	n.implicit = p.event.implicit
+	p.anchor(n, p.event.anchor)
+	p.skip()
+	return n
+}
+
+func (p *parser) sequence() *node {
+	n := p.node(sequenceNode)
+	p.anchor(n, p.event.anchor)
+	p.skip()
+	for p.event.typ != yaml_SEQUENCE_END_EVENT {
+		n.children = append(n.children, p.parse())
+	}
+	p.skip()
+	return n
+}
+
+func (p *parser) mapping() *node {
+	n := p.node(mappingNode)
+	p.anchor(n, p.event.anchor)
+	p.skip()
+	for p.event.typ != yaml_MAPPING_END_EVENT {
+		n.children = append(n.children, p.parse(), p.parse())
+	}
+	p.skip()
+	return n
+}
+
+// ----------------------------------------------------------------------------
+// Decoder, unmarshals a node into a provided value.
+
+type decoder struct {
+	doc     *node
+	aliases map[string]bool
+	mapType reflect.Type
+	terrors []string
+}
+
+var (
+	mapItemType    = reflect.TypeOf(MapItem{})
+	durationType   = reflect.TypeOf(time.Duration(0))
+	defaultMapType = reflect.TypeOf(map[interface{}]interface{}{})
+	ifaceType      = defaultMapType.Elem()
+)
+
+func newDecoder() *decoder {
+	d := &decoder{mapType: defaultMapType}
+	d.aliases = make(map[string]bool)
+	return d
+}
+
+func (d *decoder) terror(n *node, tag string, out reflect.Value) {
+	if n.tag != "" {
+		tag = n.tag
+	}
+	value := n.value
+	if tag != yaml_SEQ_TAG && tag != yaml_MAP_TAG {
+		if len(value) > 10 {
+			value = " `" + value[:7] + "...`"
+		} else {
+			value = " `" + value + "`"
+		}
+	}
+	d.terrors = append(d.terrors, fmt.Sprintf("line %d: cannot unmarshal %s%s into %s", n.line+1, shortTag(tag), value, out.Type()))
+}
+
+func (d *decoder) callUnmarshaler(n *node, u Unmarshaler) (good bool) {
+	terrlen := len(d.terrors)
+	err := u.UnmarshalYAML(func(v interface{}) (err error) {
+		defer handleErr(&err)
+		d.unmarshal(n, reflect.ValueOf(v))
+		if len(d.terrors) > terrlen {
+			issues := d.terrors[terrlen:]
+			d.terrors = d.terrors[:terrlen]
+			return &TypeError{issues}
+		}
+		return nil
+	})
+	if e, ok := err.(*TypeError); ok {
+		d.terrors = append(d.terrors, e.Errors...)
+		return false
+	}
+	if err != nil {
+		fail(err)
+	}
+	return true
+}
+
+// d.prepare initializes and dereferences pointers and calls UnmarshalYAML
+// if a value is found to implement it.
+// It returns the initialized and dereferenced out value, whether
+// unmarshalling was already done by UnmarshalYAML, and if so whether
+// its types unmarshalled appropriately.
+//
+// If n holds a null value, prepare returns before doing anything.
+func (d *decoder) prepare(n *node, out reflect.Value) (newout reflect.Value, unmarshaled, good bool) {
+	if n.tag == yaml_NULL_TAG || n.kind == scalarNode && n.tag == "" && (n.value == "null" || n.value == "") {
+		return out, false, false
+	}
+	again := true
+	for again {
+		again = false
+		if out.Kind() == reflect.Ptr {
+			if out.IsNil() {
+				out.Set(reflect.New(out.Type().Elem()))
+			}
+			out = out.Elem()
+			again = true
+		}
+		if out.CanAddr() {
+			if u, ok := out.Addr().Interface().(Unmarshaler); ok {
+				good = d.callUnmarshaler(n, u)
+				return out, true, good
+			}
+		}
+	}
+	return out, false, false
+}
+
+func (d *decoder) unmarshal(n *node, out reflect.Value) (good bool) {
+	switch n.kind {
+	case documentNode:
+		return d.document(n, out)
+	case aliasNode:
+		return d.alias(n, out)
+	}
+	out, unmarshaled, good := d.prepare(n, out)
+	if unmarshaled {
+		return good
+	}
+	switch n.kind {
+	case scalarNode:
+		good = d.scalar(n, out)
+	case mappingNode:
+		good = d.mapping(n, out)
+	case sequenceNode:
+		good = d.sequence(n, out)
+	default:
+		panic("internal error: unknown node kind: " + strconv.Itoa(n.kind))
+	}
+	return good
+}
+
+func (d *decoder) document(n *node, out reflect.Value) (good bool) {
+	if len(n.children) == 1 {
+		d.doc = n
+		d.unmarshal(n.children[0], out)
+		return true
+	}
+	return false
+}
+
+func (d *decoder) alias(n *node, out reflect.Value) (good bool) {
+	an, ok := d.doc.anchors[n.value]
+	if !ok {
+		failf("unknown anchor '%s' referenced", n.value)
+	}
+	if d.aliases[n.value] {
+		failf("anchor '%s' value contains itself", n.value)
+	}
+	d.aliases[n.value] = true
+	good = d.unmarshal(an, out)
+	delete(d.aliases, n.value)
+	return good
+}
+
+var zeroValue reflect.Value
+
+func resetMap(out reflect.Value) {
+	for _, k := range out.MapKeys() {
+		out.SetMapIndex(k, zeroValue)
+	}
+}
+
+func (d *decoder) scalar(n *node, out reflect.Value) (good bool) {
+	var tag string
+	var resolved interface{}
+	if n.tag == "" && !n.implicit {
+		tag = yaml_STR_TAG
+		resolved = n.value
+	} else {
+		tag, resolved = resolve(n.tag, n.value)
+		if tag == yaml_BINARY_TAG {
+			data, err := base64.StdEncoding.DecodeString(resolved.(string))
+			if err != nil {
+				failf("!!binary value contains invalid base64 data")
+			}
+			resolved = string(data)
+		}
+	}
+	if resolved == nil {
+		if out.Kind() == reflect.Map && !out.CanAddr() {
+			resetMap(out)
+		} else {
+			out.Set(reflect.Zero(out.Type()))
+		}
+		return true
+	}
+	if s, ok := resolved.(string); ok && out.CanAddr() {
+		if u, ok := out.Addr().Interface().(encoding.TextUnmarshaler); ok {
+			err := u.UnmarshalText([]byte(s))
+			if err != nil {
+				fail(err)
+			}
+			return true
+		}
+	}
+	switch out.Kind() {
+	case reflect.String:
+		if tag == yaml_BINARY_TAG {
+			out.SetString(resolved.(string))
+			good = true
+		} else if resolved != nil {
+			out.SetString(n.value)
+			good = true
+		}
+	case reflect.Interface:
+		if resolved == nil {
+			out.Set(reflect.Zero(out.Type()))
+		} else {
+			out.Set(reflect.ValueOf(resolved))
+		}
+		good = true
+	case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64:
+		switch resolved := resolved.(type) {
+		case int:
+			if !out.OverflowInt(int64(resolved)) {
+				out.SetInt(int64(resolved))
+				good = true
+			}
+		case int64:
+			if !out.OverflowInt(resolved) {
+				out.SetInt(resolved)
+				good = true
+			}
+		case uint64:
+			if resolved <= math.MaxInt64 && !out.OverflowInt(int64(resolved)) {
+				out.SetInt(int64(resolved))
+				good = true
+			}
+		case float64:
+			if resolved <= math.MaxInt64 && !out.OverflowInt(int64(resolved)) {
+				out.SetInt(int64(resolved))
+				good = true
+			}
+		case string:
+			if out.Type() == durationType {
+				d, err := time.ParseDuration(resolved)
+				if err == nil {
+					out.SetInt(int64(d))
+					good = true
+				}
+			}
+		}
+	case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64, reflect.Uintptr:
+		switch resolved := resolved.(type) {
+		case int:
+			if resolved >= 0 && !out.OverflowUint(uint64(resolved)) {
+				out.SetUint(uint64(resolved))
+				good = true
+			}
+		case int64:
+			if resolved >= 0 && !out.OverflowUint(uint64(resolved)) {
+				out.SetUint(uint64(resolved))
+				good = true
+			}
+		case uint64:
+			if !out.OverflowUint(uint64(resolved)) {
+				out.SetUint(uint64(resolved))
+				good = true
+			}
+		case float64:
+			if resolved <= math.MaxUint64 && !out.OverflowUint(uint64(resolved)) {
+				out.SetUint(uint64(resolved))
+				good = true
+			}
+		}
+	case reflect.Bool:
+		switch resolved := resolved.(type) {
+		case bool:
+			out.SetBool(resolved)
+			good = true
+		}
+	case reflect.Float32, reflect.Float64:
+		switch resolved := resolved.(type) {
+		case int:
+			out.SetFloat(float64(resolved))
+			good = true
+		case int64:
+			out.SetFloat(float64(resolved))
+			good = true
+		case uint64:
+			out.SetFloat(float64(resolved))
+			good = true
+		case float64:
+			out.SetFloat(resolved)
+			good = true
+		}
+	case reflect.Ptr:
+		if out.Type().Elem() == reflect.TypeOf(resolved) {
+			// TODO DOes this make sense? When is out a Ptr except when decoding a nil value?
+			elem := reflect.New(out.Type().Elem())
+			elem.Elem().Set(reflect.ValueOf(resolved))
+			out.Set(elem)
+			good = true
+		}
+	}
+	if !good {
+		d.terror(n, tag, out)
+	}
+	return good
+}
+
+func settableValueOf(i interface{}) reflect.Value {
+	v := reflect.ValueOf(i)
+	sv := reflect.New(v.Type()).Elem()
+	sv.Set(v)
+	return sv
+}
+
+func (d *decoder) sequence(n *node, out reflect.Value) (good bool) {
+	l := len(n.children)
+
+	var iface reflect.Value
+	switch out.Kind() {
+	case reflect.Slice:
+		out.Set(reflect.MakeSlice(out.Type(), l, l))
+	case reflect.Interface:
+		// No type hints. Will have to use a generic sequence.
+		iface = out
+		out = settableValueOf(make([]interface{}, l))
+	default:
+		d.terror(n, yaml_SEQ_TAG, out)
+		return false
+	}
+	et := out.Type().Elem()
+
+	j := 0
+	for i := 0; i < l; i++ {
+		e := reflect.New(et).Elem()
+		if ok := d.unmarshal(n.children[i], e); ok {
+			out.Index(j).Set(e)
+			j++
+		}
+	}
+	out.Set(out.Slice(0, j))
+	if iface.IsValid() {
+		iface.Set(out)
+	}
+	return true
+}
+
+func (d *decoder) mapping(n *node, out reflect.Value) (good bool) {
+	switch out.Kind() {
+	case reflect.Struct:
+		return d.mappingStruct(n, out)
+	case reflect.Slice:
+		return d.mappingSlice(n, out)
+	case reflect.Map:
+		// okay
+	case reflect.Interface:
+		if d.mapType.Kind() == reflect.Map {
+			iface := out
+			out = reflect.MakeMap(d.mapType)
+			iface.Set(out)
+		} else {
+			slicev := reflect.New(d.mapType).Elem()
+			if !d.mappingSlice(n, slicev) {
+				return false
+			}
+			out.Set(slicev)
+			return true
+		}
+	default:
+		d.terror(n, yaml_MAP_TAG, out)
+		return false
+	}
+	outt := out.Type()
+	kt := outt.Key()
+	et := outt.Elem()
+
+	mapType := d.mapType
+	if outt.Key() == ifaceType && outt.Elem() == ifaceType {
+		d.mapType = outt
+	}
+
+	if out.IsNil() {
+		out.Set(reflect.MakeMap(outt))
+	}
+	l := len(n.children)
+	for i := 0; i < l; i += 2 {
+		if isMerge(n.children[i]) {
+			d.merge(n.children[i+1], out)
+			continue
+		}
+		k := reflect.New(kt).Elem()
+		if d.unmarshal(n.children[i], k) {
+			kkind := k.Kind()
+			if kkind == reflect.Interface {
+				kkind = k.Elem().Kind()
+			}
+			if kkind == reflect.Map || kkind == reflect.Slice {
+				failf("invalid map key: %#v", k.Interface())
+			}
+			e := reflect.New(et).Elem()
+			if d.unmarshal(n.children[i+1], e) {
+				out.SetMapIndex(k, e)
+			}
+		}
+	}
+	d.mapType = mapType
+	return true
+}
+
+func (d *decoder) mappingSlice(n *node, out reflect.Value) (good bool) {
+	outt := out.Type()
+	if outt.Elem() != mapItemType {
+		d.terror(n, yaml_MAP_TAG, out)
+		return false
+	}
+
+	mapType := d.mapType
+	d.mapType = outt
+
+	var slice []MapItem
+	var l = len(n.children)
+	for i := 0; i < l; i += 2 {
+		if isMerge(n.children[i]) {
+			d.merge(n.children[i+1], out)
+			continue
+		}
+		item := MapItem{}
+		k := reflect.ValueOf(&item.Key).Elem()
+		if d.unmarshal(n.children[i], k) {
+			v := reflect.ValueOf(&item.Value).Elem()
+			if d.unmarshal(n.children[i+1], v) {
+				slice = append(slice, item)
+			}
+		}
+	}
+	out.Set(reflect.ValueOf(slice))
+	d.mapType = mapType
+	return true
+}
+
+func (d *decoder) mappingStruct(n *node, out reflect.Value) (good bool) {
+	sinfo, err := getStructInfo(out.Type())
+	if err != nil {
+		panic(err)
+	}
+	name := settableValueOf("")
+	l := len(n.children)
+
+	var inlineMap reflect.Value
+	var elemType reflect.Type
+	if sinfo.InlineMap != -1 {
+		inlineMap = out.Field(sinfo.InlineMap)
+		inlineMap.Set(reflect.New(inlineMap.Type()).Elem())
+		elemType = inlineMap.Type().Elem()
+	}
+
+	for i := 0; i < l; i += 2 {
+		ni := n.children[i]
+		if isMerge(ni) {
+			d.merge(n.children[i+1], out)
+			continue
+		}
+		if !d.unmarshal(ni, name) {
+			continue
+		}
+		if info, ok := sinfo.FieldsMap[name.String()]; ok {
+			var field reflect.Value
+			if info.Inline == nil {
+				field = out.Field(info.Num)
+			} else {
+				field = out.FieldByIndex(info.Inline)
+			}
+			d.unmarshal(n.children[i+1], field)
+		} else if sinfo.InlineMap != -1 {
+			if inlineMap.IsNil() {
+				inlineMap.Set(reflect.MakeMap(inlineMap.Type()))
+			}
+			value := reflect.New(elemType).Elem()
+			d.unmarshal(n.children[i+1], value)
+			inlineMap.SetMapIndex(name, value)
+		}
+	}
+	return true
+}
+
+func failWantMap() {
+	failf("map merge requires map or sequence of maps as the value")
+}
+
+func (d *decoder) merge(n *node, out reflect.Value) {
+	switch n.kind {
+	case mappingNode:
+		d.unmarshal(n, out)
+	case aliasNode:
+		an, ok := d.doc.anchors[n.value]
+		if ok && an.kind != mappingNode {
+			failWantMap()
+		}
+		d.unmarshal(n, out)
+	case sequenceNode:
+		// Step backwards as earlier nodes take precedence.
+		for i := len(n.children) - 1; i >= 0; i-- {
+			ni := n.children[i]
+			if ni.kind == aliasNode {
+				an, ok := d.doc.anchors[ni.value]
+				if ok && an.kind != mappingNode {
+					failWantMap()
+				}
+			} else if ni.kind != mappingNode {
+				failWantMap()
+			}
+			d.unmarshal(ni, out)
+		}
+	default:
+		failWantMap()
+	}
+}
+
+func isMerge(n *node) bool {
+	return n.kind == scalarNode && n.value == "<<" && (n.implicit == true || n.tag == yaml_MERGE_TAG)
+}

vendor/gopkg.in/yaml.v2/encode.go

@@ -0,0 +1,306 @@
+package yaml
+
+import (
+	"encoding"
+	"fmt"
+	"reflect"
+	"regexp"
+	"sort"
+	"strconv"
+	"strings"
+	"time"
+)
+
+type encoder struct {
+	emitter yaml_emitter_t
+	event   yaml_event_t
+	out     []byte
+	flow    bool
+}
+
+func newEncoder() (e *encoder) {
+	e = &encoder{}
+	e.must(yaml_emitter_initialize(&e.emitter))
+	yaml_emitter_set_output_string(&e.emitter, &e.out)
+	yaml_emitter_set_unicode(&e.emitter, true)
+	e.must(yaml_stream_start_event_initialize(&e.event, yaml_UTF8_ENCODING))
+	e.emit()
+	e.must(yaml_document_start_event_initialize(&e.event, nil, nil, true))
+	e.emit()
+	return e
+}
+
+func (e *encoder) finish() {
+	e.must(yaml_document_end_event_initialize(&e.event, true))
+	e.emit()
+	e.emitter.open_ended = false
+	e.must(yaml_stream_end_event_initialize(&e.event))
+	e.emit()
+}
+
+func (e *encoder) destroy() {
+	yaml_emitter_delete(&e.emitter)
+}
+
+func (e *encoder) emit() {
+	// This will internally delete the e.event value.
+	if !yaml_emitter_emit(&e.emitter, &e.event) && e.event.typ != yaml_DOCUMENT_END_EVENT && e.event.typ != yaml_STREAM_END_EVENT {
+		e.must(false)
+	}
+}
+
+func (e *encoder) must(ok bool) {
+	if !ok {
+		msg := e.emitter.problem
+		if msg == "" {
+			msg = "unknown problem generating YAML content"
+		}
+		failf("%s", msg)
+	}
+}
+
+func (e *encoder) marshal(tag string, in reflect.Value) {
+	if !in.IsValid() {
+		e.nilv()
+		return
+	}
+	iface := in.Interface()
+	if m, ok := iface.(Marshaler); ok {
+		v, err := m.MarshalYAML()
+		if err != nil {
+			fail(err)
+		}
+		if v == nil {
+			e.nilv()
+			return
+		}
+		in = reflect.ValueOf(v)
+	} else if m, ok := iface.(encoding.TextMarshaler); ok {
+		text, err := m.MarshalText()
+		if err != nil {
+			fail(err)
+		}
+		in = reflect.ValueOf(string(text))
+	}
+	switch in.Kind() {
+	case reflect.Interface:
+		if in.IsNil() {
+			e.nilv()
+		} else {
+			e.marshal(tag, in.Elem())
+		}
+	case reflect.Map:
+		e.mapv(tag, in)
+	case reflect.Ptr:
+		if in.IsNil() {
+			e.nilv()
+		} else {
+			e.marshal(tag, in.Elem())
+		}
+	case reflect.Struct:
+		e.structv(tag, in)
+	case reflect.Slice:
+		if in.Type().Elem() == mapItemType {
+			e.itemsv(tag, in)
+		} else {
+			e.slicev(tag, in)
+		}
+	case reflect.String:
+		e.stringv(tag, in)
+	case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64:
+		if in.Type() == durationType {
+			e.stringv(tag, reflect.ValueOf(iface.(time.Duration).String()))
+		} else {
+			e.intv(tag, in)
+		}
+	case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64, reflect.Uintptr:
+		e.uintv(tag, in)
+	case reflect.Float32, reflect.Float64:
+		e.floatv(tag, in)
+	case reflect.Bool:
+		e.boolv(tag, in)
+	default:
+		panic("cannot marshal type: " + in.Type().String())
+	}
+}
+
+func (e *encoder) mapv(tag string, in reflect.Value) {
+	e.mappingv(tag, func() {
+		keys := keyList(in.MapKeys())
+		sort.Sort(keys)
+		for _, k := range keys {
+			e.marshal("", k)
+			e.marshal("", in.MapIndex(k))
+		}
+	})
+}
+
+func (e *encoder) itemsv(tag string, in reflect.Value) {
+	e.mappingv(tag, func() {
+		slice := in.Convert(reflect.TypeOf([]MapItem{})).Interface().([]MapItem)
+		for _, item := range slice {
+			e.marshal("", reflect.ValueOf(item.Key))
+			e.marshal("", reflect.ValueOf(item.Value))
+		}
+	})
+}
+
+func (e *encoder) structv(tag string, in reflect.Value) {
+	sinfo, err := getStructInfo(in.Type())
+	if err != nil {
+		panic(err)
+	}
+	e.mappingv(tag, func() {
+		for _, info := range sinfo.FieldsList {
+			var value reflect.Value
+			if info.Inline == nil {
+				value = in.Field(info.Num)
+			} else {
+				value = in.FieldByIndex(info.Inline)
+			}
+			if info.OmitEmpty && isZero(value) {
+				continue
+			}
+			e.marshal("", reflect.ValueOf(info.Key))
+			e.flow = info.Flow
+			e.marshal("", value)
+		}
+		if sinfo.InlineMap >= 0 {
+			m := in.Field(sinfo.InlineMap)
+			if m.Len() > 0 {
+				e.flow = false
+				keys := keyList(m.MapKeys())
+				sort.Sort(keys)
+				for _, k := range keys {
+					if _, found := sinfo.FieldsMap[k.String()]; found {
+						panic(fmt.Sprintf("Can't have key %q in inlined map; conflicts with struct field", k.String()))
+					}
+					e.marshal("", k)
+					e.flow = false
+					e.marshal("", m.MapIndex(k))
+				}
+			}
+		}
+	})
+}
+
+func (e *encoder) mappingv(tag string, f func()) {
+	implicit := tag == ""
+	style := yaml_BLOCK_MAPPING_STYLE
+	if e.flow {
+		e.flow = false
+		style = yaml_FLOW_MAPPING_STYLE
+	}
+	e.must(yaml_mapping_start_event_initialize(&e.event, nil, []byte(tag), implicit, style))
+	e.emit()
+	f()
+	e.must(yaml_mapping_end_event_initialize(&e.event))
+	e.emit()
+}
+
+func (e *encoder) slicev(tag string, in reflect.Value) {
+	implicit := tag == ""
+	style := yaml_BLOCK_SEQUENCE_STYLE
+	if e.flow {
+		e.flow = false
+		style = yaml_FLOW_SEQUENCE_STYLE
+	}
+	e.must(yaml_sequence_start_event_initialize(&e.event, nil, []byte(tag), implicit, style))
+	e.emit()
+	n := in.Len()
+	for i := 0; i < n; i++ {
+		e.marshal("", in.Index(i))
+	}
+	e.must(yaml_sequence_end_event_initialize(&e.event))
+	e.emit()
+}
+
+// isBase60 returns whether s is in base 60 notation as defined in YAML 1.1.
+//
+// The base 60 float notation in YAML 1.1 is a terrible idea and is unsupported
+// in YAML 1.2 and by this package, but these should be marshalled quoted for
+// the time being for compatibility with other parsers.
+func isBase60Float(s string) (result bool) {
+	// Fast path.
+	if s == "" {
+		return false
+	}
+	c := s[0]
+	if !(c == '+' || c == '-' || c >= '0' && c <= '9') || strings.IndexByte(s, ':') < 0 {
+		return false
+	}
+	// Do the full match.
+	return base60float.MatchString(s)
+}
+
+// From http://yaml.org/type/float.html, except the regular expression there
+// is bogus. In practice parsers do not enforce the "\.[0-9_]*" suffix.
+var base60float = regexp.MustCompile(`^[-+]?[0-9][0-9_]*(?::[0-5]?[0-9])+(?:\.[0-9_]*)?$`)
+
+func (e *encoder) stringv(tag string, in reflect.Value) {
+	var style yaml_scalar_style_t
+	s := in.String()
+	rtag, rs := resolve("", s)
+	if rtag == yaml_BINARY_TAG {
+		if tag == "" || tag == yaml_STR_TAG {
+			tag = rtag
+			s = rs.(string)
+		} else if tag == yaml_BINARY_TAG {
+			failf("explicitly tagged !!binary data must be base64-encoded")
+		} else {
+			failf("cannot marshal invalid UTF-8 data as %s", shortTag(tag))
+		}
+	}
+	if tag == "" && (rtag != yaml_STR_TAG || isBase60Float(s)) {
+		style = yaml_DOUBLE_QUOTED_SCALAR_STYLE
+	} else if strings.Contains(s, "\n") {
+		style = yaml_LITERAL_SCALAR_STYLE
+	} else {
+		style = yaml_PLAIN_SCALAR_STYLE
+	}
+	e.emitScalar(s, "", tag, style)
+}
+
+func (e *encoder) boolv(tag string, in reflect.Value) {
+	var s string
+	if in.Bool() {
+		s = "true"
+	} else {
+		s = "false"
+	}
+	e.emitScalar(s, "", tag, yaml_PLAIN_SCALAR_STYLE)
+}
+
+func (e *encoder) intv(tag string, in reflect.Value) {
+	s := strconv.FormatInt(in.Int(), 10)
+	e.emitScalar(s, "", tag, yaml_PLAIN_SCALAR_STYLE)
+}
+
+func (e *encoder) uintv(tag string, in reflect.Value) {
+	s := strconv.FormatUint(in.Uint(), 10)
+	e.emitScalar(s, "", tag, yaml_PLAIN_SCALAR_STYLE)
+}
+
+func (e *encoder) floatv(tag string, in reflect.Value) {
+	// FIXME: Handle 64 bits here.
+	s := strconv.FormatFloat(float64(in.Float()), 'g', -1, 32)
+	switch s {
+	case "+Inf":
+		s = ".inf"
+	case "-Inf":
+		s = "-.inf"
+	case "NaN":
+		s = ".nan"
+	}
+	e.emitScalar(s, "", tag, yaml_PLAIN_SCALAR_STYLE)
+}
+
+func (e *encoder) nilv() {
+	e.emitScalar("null", "", "", yaml_PLAIN_SCALAR_STYLE)
+}
+
+func (e *encoder) emitScalar(value, anchor, tag string, style yaml_scalar_style_t) {
+	implicit := tag == ""
+	e.must(yaml_scalar_event_initialize(&e.event, []byte(anchor), []byte(tag), []byte(value), implicit, implicit, style))
+	e.emit()
+}

vendor/gopkg.in/yaml.v2/readerc.go

@@ -0,0 +1,394 @@
+package yaml
+
+import (
+	"io"
+)
+
+// Set the reader error and return 0.
+func yaml_parser_set_reader_error(parser *yaml_parser_t, problem string, offset int, value int) bool {
+	parser.error = yaml_READER_ERROR
+	parser.problem = problem
+	parser.problem_offset = offset
+	parser.problem_value = value
+	return false
+}
+
+// Byte order marks.
+const (
+	bom_UTF8    = "\xef\xbb\xbf"
+	bom_UTF16LE = "\xff\xfe"
+	bom_UTF16BE = "\xfe\xff"
+)
+
+// Determine the input stream encoding by checking the BOM symbol. If no BOM is
+// found, the UTF-8 encoding is assumed. Return 1 on success, 0 on failure.
+func yaml_parser_determine_encoding(parser *yaml_parser_t) bool {
+	// Ensure that we had enough bytes in the raw buffer.
+	for !parser.eof && len(parser.raw_buffer)-parser.raw_buffer_pos < 3 {
+		if !yaml_parser_update_raw_buffer(parser) {
+			return false
+		}
+	}
+
+	// Determine the encoding.
+	buf := parser.raw_buffer
+	pos := parser.raw_buffer_pos
+	avail := len(buf) - pos
+	if avail >= 2 && buf[pos] == bom_UTF16LE[0] && buf[pos+1] == bom_UTF16LE[1] {
+		parser.encoding = yaml_UTF16LE_ENCODING
+		parser.raw_buffer_pos += 2
+		parser.offset += 2
+	} else if avail >= 2 && buf[pos] == bom_UTF16BE[0] && buf[pos+1] == bom_UTF16BE[1] {
+		parser.encoding = yaml_UTF16BE_ENCODING
+		parser.raw_buffer_pos += 2
+		parser.offset += 2
+	} else if avail >= 3 && buf[pos] == bom_UTF8[0] && buf[pos+1] == bom_UTF8[1] && buf[pos+2] == bom_UTF8[2] {
+		parser.encoding = yaml_UTF8_ENCODING
+		parser.raw_buffer_pos += 3
+		parser.offset += 3
+	} else {
+		parser.encoding = yaml_UTF8_ENCODING
+	}
+	return true
+}
+
+// Update the raw buffer.
+func yaml_parser_update_raw_buffer(parser *yaml_parser_t) bool {
+	size_read := 0
+
+	// Return if the raw buffer is full.
+	if parser.raw_buffer_pos == 0 && len(parser.raw_buffer) == cap(parser.raw_buffer) {
+		return true
+	}
+
+	// Return on EOF.
+	if parser.eof {
+		return true
+	}
+
+	// Move the remaining bytes in the raw buffer to the beginning.
+	if parser.raw_buffer_pos > 0 && parser.raw_buffer_pos < len(parser.raw_buffer) {
+		copy(parser.raw_buffer, parser.raw_buffer[parser.raw_buffer_pos:])
+	}
+	parser.raw_buffer = parser.raw_buffer[:len(parser.raw_buffer)-parser.raw_buffer_pos]
+	parser.raw_buffer_pos = 0
+
+	// Call the read handler to fill the buffer.
+	size_read, err := parser.read_handler(parser, parser.raw_buffer[len(parser.raw_buffer):cap(parser.raw_buffer)])
+	parser.raw_buffer = parser.raw_buffer[:len(parser.raw_buffer)+size_read]
+	if err == io.EOF {
+		parser.eof = true
+	} else if err != nil {
+		return yaml_parser_set_reader_error(parser, "input error: "+err.Error(), parser.offset, -1)
+	}
+	return true
+}
+
+// Ensure that the buffer contains at least `length` characters.
+// Return true on success, false on failure.
+//
+// The length is supposed to be significantly less that the buffer size.
+func yaml_parser_update_buffer(parser *yaml_parser_t, length int) bool {
+	if parser.read_handler == nil {
+		panic("read handler must be set")
+	}
+
+	// If the EOF flag is set and the raw buffer is empty, do nothing.
+	if parser.eof && parser.raw_buffer_pos == len(parser.raw_buffer) {
+		return true
+	}
+
+	// Return if the buffer contains enough characters.
+	if parser.unread >= length {
+		return true
+	}
+
+	// Determine the input encoding if it is not known yet.
+	if parser.encoding == yaml_ANY_ENCODING {
+		if !yaml_parser_determine_encoding(parser) {
+			return false
+		}
+	}
+
+	// Move the unread characters to the beginning of the buffer.
+	buffer_len := len(parser.buffer)
+	if parser.buffer_pos > 0 && parser.buffer_pos < buffer_len {
+		copy(parser.buffer, parser.buffer[parser.buffer_pos:])
+		buffer_len -= parser.buffer_pos
+		parser.buffer_pos = 0
+	} else if parser.buffer_pos == buffer_len {
+		buffer_len = 0
+		parser.buffer_pos = 0
+	}
+
+	// Open the whole buffer for writing, and cut it before returning.
+	parser.buffer = parser.buffer[:cap(parser.buffer)]
+
+	// Fill the buffer until it has enough characters.
+	first := true
+	for parser.unread < length {
+
+		// Fill the raw buffer if necessary.
+		if !first || parser.raw_buffer_pos == len(parser.raw_buffer) {
+			if !yaml_parser_update_raw_buffer(parser) {
+				parser.buffer = parser.buffer[:buffer_len]
+				return false
+			}
+		}
+		first = false
+
+		// Decode the raw buffer.
+	inner:
+		for parser.raw_buffer_pos != len(parser.raw_buffer) {
+			var value rune
+			var width int
+
+			raw_unread := len(parser.raw_buffer) - parser.raw_buffer_pos
+
+			// Decode the next character.
+			switch parser.encoding {
+			case yaml_UTF8_ENCODING:
+				// Decode a UTF-8 character.  Check RFC 3629
+				// (http://www.ietf.org/rfc/rfc3629.txt) for more details.
+				//
+				// The following table (taken from the RFC) is used for
+				// decoding.
+				//
+				//    Char. number range |        UTF-8 octet sequence
+				//      (hexadecimal)    |              (binary)
+				//   --------------------+------------------------------------
+				//   0000 0000-0000 007F | 0xxxxxxx
+				//   0000 0080-0000 07FF | 110xxxxx 10xxxxxx
+				//   0000 0800-0000 FFFF | 1110xxxx 10xxxxxx 10xxxxxx
+				//   0001 0000-0010 FFFF | 11110xxx 10xxxxxx 10xxxxxx 10xxxxxx
+				//
+				// Additionally, the characters in the range 0xD800-0xDFFF
+				// are prohibited as they are reserved for use with UTF-16
+				// surrogate pairs.
+
+				// Determine the length of the UTF-8 sequence.
+				octet := parser.raw_buffer[parser.raw_buffer_pos]
+				switch {
+				case octet&0x80 == 0x00:
+					width = 1
+				case octet&0xE0 == 0xC0:
+					width = 2
+				case octet&0xF0 == 0xE0:
+					width = 3
+				case octet&0xF8 == 0xF0:
+					width = 4
+				default:
+					// The leading octet is invalid.
+					return yaml_parser_set_reader_error(parser,
+						"invalid leading UTF-8 octet",
+						parser.offset, int(octet))
+				}
+
+				// Check if the raw buffer contains an incomplete character.
+				if width > raw_unread {
+					if parser.eof {
+						return yaml_parser_set_reader_error(parser,
+							"incomplete UTF-8 octet sequence",
+							parser.offset, -1)
+					}
+					break inner
+				}
+
+				// Decode the leading octet.
+				switch {
+				case octet&0x80 == 0x00:
+					value = rune(octet & 0x7F)
+				case octet&0xE0 == 0xC0:
+					value = rune(octet & 0x1F)
+				case octet&0xF0 == 0xE0:
+					value = rune(octet & 0x0F)
+				case octet&0xF8 == 0xF0:
+					value = rune(octet & 0x07)
+				default:
+					value = 0
+				}
+
+				// Check and decode the trailing octets.
+				for k := 1; k < width; k++ {
+					octet = parser.raw_buffer[parser.raw_buffer_pos+k]
+
+					// Check if the octet is valid.
+					if (octet & 0xC0) != 0x80 {
+						return yaml_parser_set_reader_error(parser,
+							"invalid trailing UTF-8 octet",
+							parser.offset+k, int(octet))
+					}
+
+					// Decode the octet.
+					value = (value << 6) + rune(octet&0x3F)
+				}
+
+				// Check the length of the sequence against the value.
+				switch {
+				case width == 1:
+				case width == 2 && value >= 0x80:
+				case width == 3 && value >= 0x800:
+				case width == 4 && value >= 0x10000:
+				default:
+					return yaml_parser_set_reader_error(parser,
+						"invalid length of a UTF-8 sequence",
+						parser.offset, -1)
+				}
+
+				// Check the range of the value.
+				if value >= 0xD800 && value <= 0xDFFF || value > 0x10FFFF {
+					return yaml_parser_set_reader_error(parser,
+						"invalid Unicode character",
+						parser.offset, int(value))
+				}
+
+			case yaml_UTF16LE_ENCODING, yaml_UTF16BE_ENCODING:
+				var low, high int
+				if parser.encoding == yaml_UTF16LE_ENCODING {
+					low, high = 0, 1
+				} else {
+					low, high = 1, 0
+				}
+
+				// The UTF-16 encoding is not as simple as one might
+				// naively think.  Check RFC 2781
+				// (http://www.ietf.org/rfc/rfc2781.txt).
+				//
+				// Normally, two subsequent bytes describe a Unicode
+				// character.  However a special technique (called a
+				// surrogate pair) is used for specifying character
+				// values larger than 0xFFFF.
+				//
+				// A surrogate pair consists of two pseudo-characters:
+				//      high surrogate area (0xD800-0xDBFF)
+				//      low surrogate area (0xDC00-0xDFFF)
+				//
+				// The following formulas are used for decoding
+				// and encoding characters using surrogate pairs:
+				//
+				//  U  = U' + 0x10000   (0x01 00 00 <= U <= 0x10 FF FF)
+				//  U' = yyyyyyyyyyxxxxxxxxxx   (0 <= U' <= 0x0F FF FF)
+				//  W1 = 110110yyyyyyyyyy
+				//  W2 = 110111xxxxxxxxxx
+				//
+				// where U is the character value, W1 is the high surrogate
+				// area, W2 is the low surrogate area.
+
+				// Check for incomplete UTF-16 character.
+				if raw_unread < 2 {
+					if parser.eof {
+						return yaml_parser_set_reader_error(parser,
+							"incomplete UTF-16 character",
+							parser.offset, -1)
+					}
+					break inner
+				}
+
+				// Get the character.
+				value = rune(parser.raw_buffer[parser.raw_buffer_pos+low]) +
+					(rune(parser.raw_buffer[parser.raw_buffer_pos+high]) << 8)
+
+				// Check for unexpected low surrogate area.
+				if value&0xFC00 == 0xDC00 {
+					return yaml_parser_set_reader_error(parser,
+						"unexpected low surrogate area",
+						parser.offset, int(value))
+				}
+
+				// Check for a high surrogate area.
+				if value&0xFC00 == 0xD800 {
+					width = 4
+
+					// Check for incomplete surrogate pair.
+					if raw_unread < 4 {
+						if parser.eof {
+							return yaml_parser_set_reader_error(parser,
+								"incomplete UTF-16 surrogate pair",
+								parser.offset, -1)
+						}
+						break inner
+					}
+
+					// Get the next character.
+					value2 := rune(parser.raw_buffer[parser.raw_buffer_pos+low+2]) +
+						(rune(parser.raw_buffer[parser.raw_buffer_pos+high+2]) << 8)
+
+					// Check for a low surrogate area.
+					if value2&0xFC00 != 0xDC00 {
+						return yaml_parser_set_reader_error(parser,
+							"expected low surrogate area",
+							parser.offset+2, int(value2))
+					}
+
+					// Generate the value of the surrogate pair.
+					value = 0x10000 + ((value & 0x3FF) << 10) + (value2 & 0x3FF)
+				} else {
+					width = 2
+				}
+
+			default:
+				panic("impossible")
+			}
+
+			// Check if the character is in the allowed range:
+			//      #x9 | #xA | #xD | [#x20-#x7E]               (8 bit)
+			//      | #x85 | [#xA0-#xD7FF] | [#xE000-#xFFFD]    (16 bit)
+			//      | [#x10000-#x10FFFF]                        (32 bit)
+			switch {
+			case value == 0x09:
+			case value == 0x0A:
+			case value == 0x0D:
+			case value >= 0x20 && value <= 0x7E:
+			case value == 0x85:
+			case value >= 0xA0 && value <= 0xD7FF:
+			case value >= 0xE000 && value <= 0xFFFD:
+			case value >= 0x10000 && value <= 0x10FFFF:
+			default:
+				return yaml_parser_set_reader_error(parser,
+					"control characters are not allowed",
+					parser.offset, int(value))
+			}
+
+			// Move the raw pointers.
+			parser.raw_buffer_pos += width
+			parser.offset += width
+
+			// Finally put the character into the buffer.
+			if value <= 0x7F {
+				// 0000 0000-0000 007F . 0xxxxxxx
+				parser.buffer[buffer_len+0] = byte(value)
+				buffer_len += 1
+			} else if value <= 0x7FF {
+				// 0000 0080-0000 07FF . 110xxxxx 10xxxxxx
+				parser.buffer[buffer_len+0] = byte(0xC0 + (value >> 6))
+				parser.buffer[buffer_len+1] = byte(0x80 + (value & 0x3F))
+				buffer_len += 2
+			} else if value <= 0xFFFF {
+				// 0000 0800-0000 FFFF . 1110xxxx 10xxxxxx 10xxxxxx
+				parser.buffer[buffer_len+0] = byte(0xE0 + (value >> 12))
+				parser.buffer[buffer_len+1] = byte(0x80 + ((value >> 6) & 0x3F))
+				parser.buffer[buffer_len+2] = byte(0x80 + (value & 0x3F))
+				buffer_len += 3
+			} else {
+				// 0001 0000-0010 FFFF . 11110xxx 10xxxxxx 10xxxxxx 10xxxxxx
+				parser.buffer[buffer_len+0] = byte(0xF0 + (value >> 18))
+				parser.buffer[buffer_len+1] = byte(0x80 + ((value >> 12) & 0x3F))
+				parser.buffer[buffer_len+2] = byte(0x80 + ((value >> 6) & 0x3F))
+				parser.buffer[buffer_len+3] = byte(0x80 + (value & 0x3F))
+				buffer_len += 4
+			}
+
+			parser.unread++
+		}
+
+		// On EOF, put NUL into the buffer and return.
+		if parser.eof {
+			parser.buffer[buffer_len] = 0
+			buffer_len++
+			parser.unread++
+			break
+		}
+	}
+	parser.buffer = parser.buffer[:buffer_len]
+	return true
+}

vendor/gopkg.in/yaml.v2/resolve.go

@@ -0,0 +1,203 @@
+package yaml
+
+import (
+	"encoding/base64"
+	"math"
+	"strconv"
+	"strings"
+	"unicode/utf8"
+)
+
+type resolveMapItem struct {
+	value interface{}
+	tag   string
+}
+
+var resolveTable = make([]byte, 256)
+var resolveMap = make(map[string]resolveMapItem)
+
+func init() {
+	t := resolveTable
+	t[int('+')] = 'S' // Sign
+	t[int('-')] = 'S'
+	for _, c := range "0123456789" {
+		t[int(c)] = 'D' // Digit
+	}
+	for _, c := range "yYnNtTfFoO~" {
+		t[int(c)] = 'M' // In map
+	}
+	t[int('.')] = '.' // Float (potentially in map)
+
+	var resolveMapList = []struct {
+		v   interface{}
+		tag string
+		l   []string
+	}{
+		{true, yaml_BOOL_TAG, []string{"y", "Y", "yes", "Yes", "YES"}},
+		{true, yaml_BOOL_TAG, []string{"true", "True", "TRUE"}},
+		{true, yaml_BOOL_TAG, []string{"on", "On", "ON"}},
+		{false, yaml_BOOL_TAG, []string{"n", "N", "no", "No", "NO"}},
+		{false, yaml_BOOL_TAG, []string{"false", "False", "FALSE"}},
+		{false, yaml_BOOL_TAG, []string{"off", "Off", "OFF"}},
+		{nil, yaml_NULL_TAG, []string{"", "~", "null", "Null", "NULL"}},
+		{math.NaN(), yaml_FLOAT_TAG, []string{".nan", ".NaN", ".NAN"}},
+		{math.Inf(+1), yaml_FLOAT_TAG, []string{".inf", ".Inf", ".INF"}},
+		{math.Inf(+1), yaml_FLOAT_TAG, []string{"+.inf", "+.Inf", "+.INF"}},
+		{math.Inf(-1), yaml_FLOAT_TAG, []string{"-.inf", "-.Inf", "-.INF"}},
+		{"<<", yaml_MERGE_TAG, []string{"<<"}},
+	}
+
+	m := resolveMap
+	for _, item := range resolveMapList {
+		for _, s := range item.l {
+			m[s] = resolveMapItem{item.v, item.tag}
+		}
+	}
+}
+
+const longTagPrefix = "tag:yaml.org,2002:"
+
+func shortTag(tag string) string {
+	// TODO This can easily be made faster and produce less garbage.
+	if strings.HasPrefix(tag, longTagPrefix) {
+		return "!!" + tag[len(longTagPrefix):]
+	}
+	return tag
+}
+
+func longTag(tag string) string {
+	if strings.HasPrefix(tag, "!!") {
+		return longTagPrefix + tag[2:]
+	}
+	return tag
+}
+
+func resolvableTag(tag string) bool {
+	switch tag {
+	case "", yaml_STR_TAG, yaml_BOOL_TAG, yaml_INT_TAG, yaml_FLOAT_TAG, yaml_NULL_TAG:
+		return true
+	}
+	return false
+}
+
+func resolve(tag string, in string) (rtag string, out interface{}) {
+	if !resolvableTag(tag) {
+		return tag, in
+	}
+
+	defer func() {
+		switch tag {
+		case "", rtag, yaml_STR_TAG, yaml_BINARY_TAG:
+			return
+		}
+		failf("cannot decode %s `%s` as a %s", shortTag(rtag), in, shortTag(tag))
+	}()
+
+	// Any data is accepted as a !!str or !!binary.
+	// Otherwise, the prefix is enough of a hint about what it might be.
+	hint := byte('N')
+	if in != "" {
+		hint = resolveTable[in[0]]
+	}
+	if hint != 0 && tag != yaml_STR_TAG && tag != yaml_BINARY_TAG {
+		// Handle things we can lookup in a map.
+		if item, ok := resolveMap[in]; ok {
+			return item.tag, item.value
+		}
+
+		// Base 60 floats are a bad idea, were dropped in YAML 1.2, and
+		// are purposefully unsupported here. They're still quoted on
+		// the way out for compatibility with other parser, though.
+
+		switch hint {
+		case 'M':
+			// We've already checked the map above.
+
+		case '.':
+			// Not in the map, so maybe a normal float.
+			floatv, err := strconv.ParseFloat(in, 64)
+			if err == nil {
+				return yaml_FLOAT_TAG, floatv
+			}
+
+		case 'D', 'S':
+			// Int, float, or timestamp.
+			plain := strings.Replace(in, "_", "", -1)
+			intv, err := strconv.ParseInt(plain, 0, 64)
+			if err == nil {
+				if intv == int64(int(intv)) {
+					return yaml_INT_TAG, int(intv)
+				} else {
+					return yaml_INT_TAG, intv
+				}
+			}
+			uintv, err := strconv.ParseUint(plain, 0, 64)
+			if err == nil {
+				return yaml_INT_TAG, uintv
+			}
+			floatv, err := strconv.ParseFloat(plain, 64)
+			if err == nil {
+				return yaml_FLOAT_TAG, floatv
+			}
+			if strings.HasPrefix(plain, "0b") {
+				intv, err := strconv.ParseInt(plain[2:], 2, 64)
+				if err == nil {
+					if intv == int64(int(intv)) {
+						return yaml_INT_TAG, int(intv)
+					} else {
+						return yaml_INT_TAG, intv
+					}
+				}
+				uintv, err := strconv.ParseUint(plain[2:], 2, 64)
+				if err == nil {
+					return yaml_INT_TAG, uintv
+				}
+			} else if strings.HasPrefix(plain, "-0b") {
+				intv, err := strconv.ParseInt(plain[3:], 2, 64)
+				if err == nil {
+					if intv == int64(int(intv)) {
+						return yaml_INT_TAG, -int(intv)
+					} else {
+						return yaml_INT_TAG, -intv
+					}
+				}
+			}
+			// XXX Handle timestamps here.
+
+		default:
+			panic("resolveTable item not yet handled: " + string(rune(hint)) + " (with " + in + ")")
+		}
+	}
+	if tag == yaml_BINARY_TAG {
+		return yaml_BINARY_TAG, in
+	}
+	if utf8.ValidString(in) {
+		return yaml_STR_TAG, in
+	}
+	return yaml_BINARY_TAG, encodeBase64(in)
+}
+
+// encodeBase64 encodes s as base64 that is broken up into multiple lines
+// as appropriate for the resulting length.
+func encodeBase64(s string) string {
+	const lineLen = 70
+	encLen := base64.StdEncoding.EncodedLen(len(s))
+	lines := encLen/lineLen + 1
+	buf := make([]byte, encLen*2+lines)
+	in := buf[0:encLen]
+	out := buf[encLen:]
+	base64.StdEncoding.Encode(in, []byte(s))
+	k := 0
+	for i := 0; i < len(in); i += lineLen {
+		j := i + lineLen
+		if j > len(in) {
+			j = len(in)
+		}
+		k += copy(out[k:], in[i:j])
+		if lines > 1 {
+			out[k] = '\n'
+			k++
+		}
+	}
+	return string(out[:k])
+}

vendor/gopkg.in/yaml.v2/sorter.go

@@ -0,0 +1,104 @@
+package yaml
+
+import (
+	"reflect"
+	"unicode"
+)
+
+type keyList []reflect.Value
+
+func (l keyList) Len() int      { return len(l) }
+func (l keyList) Swap(i, j int) { l[i], l[j] = l[j], l[i] }
+func (l keyList) Less(i, j int) bool {
+	a := l[i]
+	b := l[j]
+	ak := a.Kind()
+	bk := b.Kind()
+	for (ak == reflect.Interface || ak == reflect.Ptr) && !a.IsNil() {
+		a = a.Elem()
+		ak = a.Kind()
+	}
+	for (bk == reflect.Interface || bk == reflect.Ptr) && !b.IsNil() {
+		b = b.Elem()
+		bk = b.Kind()
+	}
+	af, aok := keyFloat(a)
+	bf, bok := keyFloat(b)
+	if aok && bok {
+		if af != bf {
+			return af < bf
+		}
+		if ak != bk {
+			return ak < bk
+		}
+		return numLess(a, b)
+	}
+	if ak != reflect.String || bk != reflect.String {
+		return ak < bk
+	}
+	ar, br := []rune(a.String()), []rune(b.String())
+	for i := 0; i < len(ar) && i < len(br); i++ {
+		if ar[i] == br[i] {
+			continue
+		}
+		al := unicode.IsLetter(ar[i])
+		bl := unicode.IsLetter(br[i])
+		if al && bl {
+			return ar[i] < br[i]
+		}
+		if al || bl {
+			return bl
+		}
+		var ai, bi int
+		var an, bn int64
+		for ai = i; ai < len(ar) && unicode.IsDigit(ar[ai]); ai++ {
+			an = an*10 + int64(ar[ai]-'0')
+		}
+		for bi = i; bi < len(br) && unicode.IsDigit(br[bi]); bi++ {
+			bn = bn*10 + int64(br[bi]-'0')
+		}
+		if an != bn {
+			return an < bn
+		}
+		if ai != bi {
+			return ai < bi
+		}
+		return ar[i] < br[i]
+	}
+	return len(ar) < len(br)
+}
+
+// keyFloat returns a float value for v if it is a number/bool
+// and whether it is a number/bool or not.
+func keyFloat(v reflect.Value) (f float64, ok bool) {
+	switch v.Kind() {
+	case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64:
+		return float64(v.Int()), true
+	case reflect.Float32, reflect.Float64:
+		return v.Float(), true
+	case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64, reflect.Uintptr:
+		return float64(v.Uint()), true
+	case reflect.Bool:
+		if v.Bool() {
+			return 1, true
+		}
+		return 0, true
+	}
+	return 0, false
+}
+
+// numLess returns whether a < b.
+// a and b must necessarily have the same kind.
+func numLess(a, b reflect.Value) bool {
+	switch a.Kind() {
+	case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64:
+		return a.Int() < b.Int()
+	case reflect.Float32, reflect.Float64:
+		return a.Float() < b.Float()
+	case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64, reflect.Uintptr:
+		return a.Uint() < b.Uint()
+	case reflect.Bool:
+		return !a.Bool() && b.Bool()
+	}
+	panic("not a number")
+}

vendor/gopkg.in/yaml.v2/writerc.go

@@ -0,0 +1,89 @@
+package yaml
+
+// Set the writer error and return false.
+func yaml_emitter_set_writer_error(emitter *yaml_emitter_t, problem string) bool {
+	emitter.error = yaml_WRITER_ERROR
+	emitter.problem = problem
+	return false
+}
+
+// Flush the output buffer.
+func yaml_emitter_flush(emitter *yaml_emitter_t) bool {
+	if emitter.write_handler == nil {
+		panic("write handler not set")
+	}
+
+	// Check if the buffer is empty.
+	if emitter.buffer_pos == 0 {
+		return true
+	}
+
+	// If the output encoding is UTF-8, we don't need to recode the buffer.
+	if emitter.encoding == yaml_UTF8_ENCODING {
+		if err := emitter.write_handler(emitter, emitter.buffer[:emitter.buffer_pos]); err != nil {
+			return yaml_emitter_set_writer_error(emitter, "write error: "+err.Error())
+		}
+		emitter.buffer_pos = 0
+		return true
+	}
+
+	// Recode the buffer into the raw buffer.
+	var low, high int
+	if emitter.encoding == yaml_UTF16LE_ENCODING {
+		low, high = 0, 1
+	} else {
+		high, low = 1, 0
+	}
+
+	pos := 0
+	for pos < emitter.buffer_pos {
+		// See the "reader.c" code for more details on UTF-8 encoding.  Note
+		// that we assume that the buffer contains a valid UTF-8 sequence.
+
+		// Read the next UTF-8 character.
+		octet := emitter.buffer[pos]
+
+		var w int
+		var value rune
+		switch {
+		case octet&0x80 == 0x00:
+			w, value = 1, rune(octet&0x7F)
+		case octet&0xE0 == 0xC0:
+			w, value = 2, rune(octet&0x1F)
+		case octet&0xF0 == 0xE0:
+			w, value = 3, rune(octet&0x0F)
+		case octet&0xF8 == 0xF0:
+			w, value = 4, rune(octet&0x07)
+		}
+		for k := 1; k < w; k++ {
+			octet = emitter.buffer[pos+k]
+			value = (value << 6) + (rune(octet) & 0x3F)
+		}
+		pos += w
+
+		// Write the character.
+		if value < 0x10000 {
+			var b [2]byte
+			b[high] = byte(value >> 8)
+			b[low] = byte(value & 0xFF)
+			emitter.raw_buffer = append(emitter.raw_buffer, b[0], b[1])
+		} else {
+			// Write the character using a surrogate pair (check "reader.c").
+			var b [4]byte
+			value -= 0x10000
+			b[high] = byte(0xD8 + (value >> 18))
+			b[low] = byte((value >> 10) & 0xFF)
+			b[high+2] = byte(0xDC + ((value >> 8) & 0xFF))
+			b[low+2] = byte(value & 0xFF)
+			emitter.raw_buffer = append(emitter.raw_buffer, b[0], b[1], b[2], b[3])
+		}
+	}
+
+	// Write the raw buffer.
+	if err := emitter.write_handler(emitter, emitter.raw_buffer); err != nil {
+		return yaml_emitter_set_writer_error(emitter, "write error: "+err.Error())
+	}
+	emitter.buffer_pos = 0
+	emitter.raw_buffer = emitter.raw_buffer[:0]
+	return true
+}

vendor/gopkg.in/yaml.v2/yaml.go

@@ -0,0 +1,346 @@
+// Package yaml implements YAML support for the Go language.
+//
+// Source code and other details for the project are available at GitHub:
+//
+//   https://github.com/go-yaml/yaml
+//
+package yaml
+
+import (
+	"errors"
+	"fmt"
+	"reflect"
+	"strings"
+	"sync"
+)
+
+// MapSlice encodes and decodes as a YAML map.
+// The order of keys is preserved when encoding and decoding.
+type MapSlice []MapItem
+
+// MapItem is an item in a MapSlice.
+type MapItem struct {
+	Key, Value interface{}
+}
+
+// The Unmarshaler interface may be implemented by types to customize their
+// behavior when being unmarshaled from a YAML document. The UnmarshalYAML
+// method receives a function that may be called to unmarshal the original
+// YAML value into a field or variable. It is safe to call the unmarshal
+// function parameter more than once if necessary.
+type Unmarshaler interface {
+	UnmarshalYAML(unmarshal func(interface{}) error) error
+}
+
+// The Marshaler interface may be implemented by types to customize their
+// behavior when being marshaled into a YAML document. The returned value
+// is marshaled in place of the original value implementing Marshaler.
+//
+// If an error is returned by MarshalYAML, the marshaling procedure stops
+// and returns with the provided error.
+type Marshaler interface {
+	MarshalYAML() (interface{}, error)
+}
+
+// Unmarshal decodes the first document found within the in byte slice
+// and assigns decoded values into the out value.
+//
+// Maps and pointers (to a struct, string, int, etc) are accepted as out
+// values. If an internal pointer within a struct is not initialized,
+// the yaml package will initialize it if necessary for unmarshalling
+// the provided data. The out parameter must not be nil.
+//
+// The type of the decoded values should be compatible with the respective
+// values in out. If one or more values cannot be decoded due to a type
+// mismatches, decoding continues partially until the end of the YAML
+// content, and a *yaml.TypeError is returned with details for all
+// missed values.
+//
+// Struct fields are only unmarshalled if they are exported (have an
+// upper case first letter), and are unmarshalled using the field name
+// lowercased as the default key. Custom keys may be defined via the
+// "yaml" name in the field tag: the content preceding the first comma
+// is used as the key, and the following comma-separated options are
+// used to tweak the marshalling process (see Marshal).
+// Conflicting names result in a runtime error.
+//
+// For example:
+//
+//     type T struct {
+//         F int `yaml:"a,omitempty"`
+//         B int
+//     }
+//     var t T
+//     yaml.Unmarshal([]byte("a: 1\nb: 2"), &t)
+//
+// See the documentation of Marshal for the format of tags and a list of
+// supported tag options.
+//
+func Unmarshal(in []byte, out interface{}) (err error) {
+	defer handleErr(&err)
+	d := newDecoder()
+	p := newParser(in)
+	defer p.destroy()
+	node := p.parse()
+	if node != nil {
+		v := reflect.ValueOf(out)
+		if v.Kind() == reflect.Ptr && !v.IsNil() {
+			v = v.Elem()
+		}
+		d.unmarshal(node, v)
+	}
+	if len(d.terrors) > 0 {
+		return &TypeError{d.terrors}
+	}
+	return nil
+}
+
+// Marshal serializes the value provided into a YAML document. The structure
+// of the generated document will reflect the structure of the value itself.
+// Maps and pointers (to struct, string, int, etc) are accepted as the in value.
+//
+// Struct fields are only unmarshalled if they are exported (have an upper case
+// first letter), and are unmarshalled using the field name lowercased as the
+// default key. Custom keys may be defined via the "yaml" name in the field
+// tag: the content preceding the first comma is used as the key, and the
+// following comma-separated options are used to tweak the marshalling process.
+// Conflicting names result in a runtime error.
+//
+// The field tag format accepted is:
+//
+//     `(...) yaml:"[<key>][,<flag1>[,<flag2>]]" (...)`
+//
+// The following flags are currently supported:
+//
+//     omitempty    Only include the field if it's not set to the zero
+//                  value for the type or to empty slices or maps.
+//                  Does not apply to zero valued structs.
+//
+//     flow         Marshal using a flow style (useful for structs,
+//                  sequences and maps).
+//
+//     inline       Inline the field, which must be a struct or a map,
+//                  causing all of its fields or keys to be processed as if
+//                  they were part of the outer struct. For maps, keys must
+//                  not conflict with the yaml keys of other struct fields.
+//
+// In addition, if the key is "-", the field is ignored.
+//
+// For example:
+//
+//     type T struct {
+//         F int "a,omitempty"
+//         B int
+//     }
+//     yaml.Marshal(&T{B: 2}) // Returns "b: 2\n"
+//     yaml.Marshal(&T{F: 1}} // Returns "a: 1\nb: 0\n"
+//
+func Marshal(in interface{}) (out []byte, err error) {
+	defer handleErr(&err)
+	e := newEncoder()
+	defer e.destroy()
+	e.marshal("", reflect.ValueOf(in))
+	e.finish()
+	out = e.out
+	return
+}
+
+func handleErr(err *error) {
+	if v := recover(); v != nil {
+		if e, ok := v.(yamlError); ok {
+			*err = e.err
+		} else {
+			panic(v)
+		}
+	}
+}
+
+type yamlError struct {
+	err error
+}
+
+func fail(err error) {
+	panic(yamlError{err})
+}
+
+func failf(format string, args ...interface{}) {
+	panic(yamlError{fmt.Errorf("yaml: "+format, args...)})
+}
+
+// A TypeError is returned by Unmarshal when one or more fields in
+// the YAML document cannot be properly decoded into the requested
+// types. When this error is returned, the value is still
+// unmarshaled partially.
+type TypeError struct {
+	Errors []string
+}
+
+func (e *TypeError) Error() string {
+	return fmt.Sprintf("yaml: unmarshal errors:\n  %s", strings.Join(e.Errors, "\n  "))
+}
+
+// --------------------------------------------------------------------------
+// Maintain a mapping of keys to structure field indexes
+
+// The code in this section was copied from mgo/bson.
+
+// structInfo holds details for the serialization of fields of
+// a given struct.
+type structInfo struct {
+	FieldsMap  map[string]fieldInfo
+	FieldsList []fieldInfo
+
+	// InlineMap is the number of the field in the struct that
+	// contains an ,inline map, or -1 if there's none.
+	InlineMap int
+}
+
+type fieldInfo struct {
+	Key       string
+	Num       int
+	OmitEmpty bool
+	Flow      bool
+
+	// Inline holds the field index if the field is part of an inlined struct.
+	Inline []int
+}
+
+var structMap = make(map[reflect.Type]*structInfo)
+var fieldMapMutex sync.RWMutex
+
+func getStructInfo(st reflect.Type) (*structInfo, error) {
+	fieldMapMutex.RLock()
+	sinfo, found := structMap[st]
+	fieldMapMutex.RUnlock()
+	if found {
+		return sinfo, nil
+	}
+
+	n := st.NumField()
+	fieldsMap := make(map[string]fieldInfo)
+	fieldsList := make([]fieldInfo, 0, n)
+	inlineMap := -1
+	for i := 0; i != n; i++ {
+		field := st.Field(i)
+		if field.PkgPath != "" && !field.Anonymous {
+			continue // Private field
+		}
+
+		info := fieldInfo{Num: i}
+
+		tag := field.Tag.Get("yaml")
+		if tag == "" && strings.Index(string(field.Tag), ":") < 0 {
+			tag = string(field.Tag)
+		}
+		if tag == "-" {
+			continue
+		}
+
+		inline := false
+		fields := strings.Split(tag, ",")
+		if len(fields) > 1 {
+			for _, flag := range fields[1:] {
+				switch flag {
+				case "omitempty":
+					info.OmitEmpty = true
+				case "flow":
+					info.Flow = true
+				case "inline":
+					inline = true
+				default:
+					return nil, errors.New(fmt.Sprintf("Unsupported flag %q in tag %q of type %s", flag, tag, st))
+				}
+			}
+			tag = fields[0]
+		}
+
+		if inline {
+			switch field.Type.Kind() {
+			case reflect.Map:
+				if inlineMap >= 0 {
+					return nil, errors.New("Multiple ,inline maps in struct " + st.String())
+				}
+				if field.Type.Key() != reflect.TypeOf("") {
+					return nil, errors.New("Option ,inline needs a map with string keys in struct " + st.String())
+				}
+				inlineMap = info.Num
+			case reflect.Struct:
+				sinfo, err := getStructInfo(field.Type)
+				if err != nil {
+					return nil, err
+				}
+				for _, finfo := range sinfo.FieldsList {
+					if _, found := fieldsMap[finfo.Key]; found {
+						msg := "Duplicated key '" + finfo.Key + "' in struct " + st.String()
+						return nil, errors.New(msg)
+					}
+					if finfo.Inline == nil {
+						finfo.Inline = []int{i, finfo.Num}
+					} else {
+						finfo.Inline = append([]int{i}, finfo.Inline...)
+					}
+					fieldsMap[finfo.Key] = finfo
+					fieldsList = append(fieldsList, finfo)
+				}
+			default:
+				//return nil, errors.New("Option ,inline needs a struct value or map field")
+				return nil, errors.New("Option ,inline needs a struct value field")
+			}
+			continue
+		}
+
+		if tag != "" {
+			info.Key = tag
+		} else {
+			info.Key = strings.ToLower(field.Name)
+		}
+
+		if _, found = fieldsMap[info.Key]; found {
+			msg := "Duplicated key '" + info.Key + "' in struct " + st.String()
+			return nil, errors.New(msg)
+		}
+
+		fieldsList = append(fieldsList, info)
+		fieldsMap[info.Key] = info
+	}
+
+	sinfo = &structInfo{fieldsMap, fieldsList, inlineMap}
+
+	fieldMapMutex.Lock()
+	structMap[st] = sinfo
+	fieldMapMutex.Unlock()
+	return sinfo, nil
+}
+
+func isZero(v reflect.Value) bool {
+	switch v.Kind() {
+	case reflect.String:
+		return len(v.String()) == 0
+	case reflect.Interface, reflect.Ptr:
+		return v.IsNil()
+	case reflect.Slice:
+		return v.Len() == 0
+	case reflect.Map:
+		return v.Len() == 0
+	case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64:
+		return v.Int() == 0
+	case reflect.Float32, reflect.Float64:
+		return v.Float() == 0
+	case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64, reflect.Uintptr:
+		return v.Uint() == 0
+	case reflect.Bool:
+		return !v.Bool()
+	case reflect.Struct:
+		vt := v.Type()
+		for i := v.NumField() - 1; i >= 0; i-- {
+			if vt.Field(i).PkgPath != "" {
+				continue // Private field
+			}
+			if !isZero(v.Field(i)) {
+				return false
+			}
+		}
+		return true
+	}
+	return false
+}

vendor/gopkg.in/yaml.v2/yamlh.go

@@ -0,0 +1,716 @@
+package yaml
+
+import (
+	"io"
+)
+
+// The version directive data.
+type yaml_version_directive_t struct {
+	major int8 // The major version number.
+	minor int8 // The minor version number.
+}
+
+// The tag directive data.
+type yaml_tag_directive_t struct {
+	handle []byte // The tag handle.
+	prefix []byte // The tag prefix.
+}
+
+type yaml_encoding_t int
+
+// The stream encoding.
+const (
+	// Let the parser choose the encoding.
+	yaml_ANY_ENCODING yaml_encoding_t = iota
+
+	yaml_UTF8_ENCODING    // The default UTF-8 encoding.
+	yaml_UTF16LE_ENCODING // The UTF-16-LE encoding with BOM.
+	yaml_UTF16BE_ENCODING // The UTF-16-BE encoding with BOM.
+)
+
+type yaml_break_t int
+
+// Line break types.
+const (
+	// Let the parser choose the break type.
+	yaml_ANY_BREAK yaml_break_t = iota
+
+	yaml_CR_BREAK   // Use CR for line breaks (Mac style).
+	yaml_LN_BREAK   // Use LN for line breaks (Unix style).
+	yaml_CRLN_BREAK // Use CR LN for line breaks (DOS style).
+)
+
+type yaml_error_type_t int
+
+// Many bad things could happen with the parser and emitter.
+const (
+	// No error is produced.
+	yaml_NO_ERROR yaml_error_type_t = iota
+
+	yaml_MEMORY_ERROR   // Cannot allocate or reallocate a block of memory.
+	yaml_READER_ERROR   // Cannot read or decode the input stream.
+	yaml_SCANNER_ERROR  // Cannot scan the input stream.
+	yaml_PARSER_ERROR   // Cannot parse the input stream.
+	yaml_COMPOSER_ERROR // Cannot compose a YAML document.
+	yaml_WRITER_ERROR   // Cannot write to the output stream.
+	yaml_EMITTER_ERROR  // Cannot emit a YAML stream.
+)
+
+// The pointer position.
+type yaml_mark_t struct {
+	index  int // The position index.
+	line   int // The position line.
+	column int // The position column.
+}
+
+// Node Styles
+
+type yaml_style_t int8
+
+type yaml_scalar_style_t yaml_style_t
+
+// Scalar styles.
+const (
+	// Let the emitter choose the style.
+	yaml_ANY_SCALAR_STYLE yaml_scalar_style_t = iota
+
+	yaml_PLAIN_SCALAR_STYLE         // The plain scalar style.
+	yaml_SINGLE_QUOTED_SCALAR_STYLE // The single-quoted scalar style.
+	yaml_DOUBLE_QUOTED_SCALAR_STYLE // The double-quoted scalar style.
+	yaml_LITERAL_SCALAR_STYLE       // The literal scalar style.
+	yaml_FOLDED_SCALAR_STYLE        // The folded scalar style.
+)
+
+type yaml_sequence_style_t yaml_style_t
+
+// Sequence styles.
+const (
+	// Let the emitter choose the style.
+	yaml_ANY_SEQUENCE_STYLE yaml_sequence_style_t = iota
+
+	yaml_BLOCK_SEQUENCE_STYLE // The block sequence style.
+	yaml_FLOW_SEQUENCE_STYLE  // The flow sequence style.
+)
+
+type yaml_mapping_style_t yaml_style_t
+
+// Mapping styles.
+const (
+	// Let the emitter choose the style.
+	yaml_ANY_MAPPING_STYLE yaml_mapping_style_t = iota
+
+	yaml_BLOCK_MAPPING_STYLE // The block mapping style.
+	yaml_FLOW_MAPPING_STYLE  // The flow mapping style.
+)
+
+// Tokens
+
+type yaml_token_type_t int
+
+// Token types.
+const (
+	// An empty token.
+	yaml_NO_TOKEN yaml_token_type_t = iota
+
+	yaml_STREAM_START_TOKEN // A STREAM-START token.
+	yaml_STREAM_END_TOKEN   // A STREAM-END token.
+
+	yaml_VERSION_DIRECTIVE_TOKEN // A VERSION-DIRECTIVE token.
+	yaml_TAG_DIRECTIVE_TOKEN     // A TAG-DIRECTIVE token.
+	yaml_DOCUMENT_START_TOKEN    // A DOCUMENT-START token.
+	yaml_DOCUMENT_END_TOKEN      // A DOCUMENT-END token.
+
+	yaml_BLOCK_SEQUENCE_START_TOKEN // A BLOCK-SEQUENCE-START token.
+	yaml_BLOCK_MAPPING_START_TOKEN  // A BLOCK-SEQUENCE-END token.
+	yaml_BLOCK_END_TOKEN            // A BLOCK-END token.
+
+	yaml_FLOW_SEQUENCE_START_TOKEN // A FLOW-SEQUENCE-START token.
+	yaml_FLOW_SEQUENCE_END_TOKEN   // A FLOW-SEQUENCE-END token.
+	yaml_FLOW_MAPPING_START_TOKEN  // A FLOW-MAPPING-START token.
+	yaml_FLOW_MAPPING_END_TOKEN    // A FLOW-MAPPING-END token.
+
+	yaml_BLOCK_ENTRY_TOKEN // A BLOCK-ENTRY token.
+	yaml_FLOW_ENTRY_TOKEN  // A FLOW-ENTRY token.
+	yaml_KEY_TOKEN         // A KEY token.
+	yaml_VALUE_TOKEN       // A VALUE token.
+
+	yaml_ALIAS_TOKEN  // An ALIAS token.
+	yaml_ANCHOR_TOKEN // An ANCHOR token.
+	yaml_TAG_TOKEN    // A TAG token.
+	yaml_SCALAR_TOKEN // A SCALAR token.
+)
+
+func (tt yaml_token_type_t) String() string {
+	switch tt {
+	case yaml_NO_TOKEN:
+		return "yaml_NO_TOKEN"
+	case yaml_STREAM_START_TOKEN:
+		return "yaml_STREAM_START_TOKEN"
+	case yaml_STREAM_END_TOKEN:
+		return "yaml_STREAM_END_TOKEN"
+	case yaml_VERSION_DIRECTIVE_TOKEN:
+		return "yaml_VERSION_DIRECTIVE_TOKEN"
+	case yaml_TAG_DIRECTIVE_TOKEN:
+		return "yaml_TAG_DIRECTIVE_TOKEN"
+	case yaml_DOCUMENT_START_TOKEN:
+		return "yaml_DOCUMENT_START_TOKEN"
+	case yaml_DOCUMENT_END_TOKEN:
+		return "yaml_DOCUMENT_END_TOKEN"
+	case yaml_BLOCK_SEQUENCE_START_TOKEN:
+		return "yaml_BLOCK_SEQUENCE_START_TOKEN"
+	case yaml_BLOCK_MAPPING_START_TOKEN:
+		return "yaml_BLOCK_MAPPING_START_TOKEN"
+	case yaml_BLOCK_END_TOKEN:
+		return "yaml_BLOCK_END_TOKEN"
+	case yaml_FLOW_SEQUENCE_START_TOKEN:
+		return "yaml_FLOW_SEQUENCE_START_TOKEN"
+	case yaml_FLOW_SEQUENCE_END_TOKEN:
+		return "yaml_FLOW_SEQUENCE_END_TOKEN"
+	case yaml_FLOW_MAPPING_START_TOKEN:
+		return "yaml_FLOW_MAPPING_START_TOKEN"
+	case yaml_FLOW_MAPPING_END_TOKEN:
+		return "yaml_FLOW_MAPPING_END_TOKEN"
+	case yaml_BLOCK_ENTRY_TOKEN:
+		return "yaml_BLOCK_ENTRY_TOKEN"
+	case yaml_FLOW_ENTRY_TOKEN:
+		return "yaml_FLOW_ENTRY_TOKEN"
+	case yaml_KEY_TOKEN:
+		return "yaml_KEY_TOKEN"
+	case yaml_VALUE_TOKEN:
+		return "yaml_VALUE_TOKEN"
+	case yaml_ALIAS_TOKEN:
+		return "yaml_ALIAS_TOKEN"
+	case yaml_ANCHOR_TOKEN:
+		return "yaml_ANCHOR_TOKEN"
+	case yaml_TAG_TOKEN:
+		return "yaml_TAG_TOKEN"
+	case yaml_SCALAR_TOKEN:
+		return "yaml_SCALAR_TOKEN"
+	}
+	return "<unknown token>"
+}
+
+// The token structure.
+type yaml_token_t struct {
+	// The token type.
+	typ yaml_token_type_t
+
+	// The start/end of the token.
+	start_mark, end_mark yaml_mark_t
+
+	// The stream encoding (for yaml_STREAM_START_TOKEN).
+	encoding yaml_encoding_t
+
+	// The alias/anchor/scalar value or tag/tag directive handle
+	// (for yaml_ALIAS_TOKEN, yaml_ANCHOR_TOKEN, yaml_SCALAR_TOKEN, yaml_TAG_TOKEN, yaml_TAG_DIRECTIVE_TOKEN).
+	value []byte
+
+	// The tag suffix (for yaml_TAG_TOKEN).
+	suffix []byte
+
+	// The tag directive prefix (for yaml_TAG_DIRECTIVE_TOKEN).
+	prefix []byte
+
+	// The scalar style (for yaml_SCALAR_TOKEN).
+	style yaml_scalar_style_t
+
+	// The version directive major/minor (for yaml_VERSION_DIRECTIVE_TOKEN).
+	major, minor int8
+}
+
+// Events
+
+type yaml_event_type_t int8
+
+// Event types.
+const (
+	// An empty event.
+	yaml_NO_EVENT yaml_event_type_t = iota
+
+	yaml_STREAM_START_EVENT   // A STREAM-START event.
+	yaml_STREAM_END_EVENT     // A STREAM-END event.
+	yaml_DOCUMENT_START_EVENT // A DOCUMENT-START event.
+	yaml_DOCUMENT_END_EVENT   // A DOCUMENT-END event.
+	yaml_ALIAS_EVENT          // An ALIAS event.
+	yaml_SCALAR_EVENT         // A SCALAR event.
+	yaml_SEQUENCE_START_EVENT // A SEQUENCE-START event.
+	yaml_SEQUENCE_END_EVENT   // A SEQUENCE-END event.
+	yaml_MAPPING_START_EVENT  // A MAPPING-START event.
+	yaml_MAPPING_END_EVENT    // A MAPPING-END event.
+)
+
+// The event structure.
+type yaml_event_t struct {
+
+	// The event type.
+	typ yaml_event_type_t
+
+	// The start and end of the event.
+	start_mark, end_mark yaml_mark_t
+
+	// The document encoding (for yaml_STREAM_START_EVENT).
+	encoding yaml_encoding_t
+
+	// The version directive (for yaml_DOCUMENT_START_EVENT).
+	version_directive *yaml_version_directive_t
+
+	// The list of tag directives (for yaml_DOCUMENT_START_EVENT).
+	tag_directives []yaml_tag_directive_t
+
+	// The anchor (for yaml_SCALAR_EVENT, yaml_SEQUENCE_START_EVENT, yaml_MAPPING_START_EVENT, yaml_ALIAS_EVENT).
+	anchor []byte
+
+	// The tag (for yaml_SCALAR_EVENT, yaml_SEQUENCE_START_EVENT, yaml_MAPPING_START_EVENT).
+	tag []byte
+
+	// The scalar value (for yaml_SCALAR_EVENT).
+	value []byte
+
+	// Is the document start/end indicator implicit, or the tag optional?
+	// (for yaml_DOCUMENT_START_EVENT, yaml_DOCUMENT_END_EVENT, yaml_SEQUENCE_START_EVENT, yaml_MAPPING_START_EVENT, yaml_SCALAR_EVENT).
+	implicit bool
+
+	// Is the tag optional for any non-plain style? (for yaml_SCALAR_EVENT).
+	quoted_implicit bool
+
+	// The style (for yaml_SCALAR_EVENT, yaml_SEQUENCE_START_EVENT, yaml_MAPPING_START_EVENT).
+	style yaml_style_t
+}
+
+func (e *yaml_event_t) scalar_style() yaml_scalar_style_t     { return yaml_scalar_style_t(e.style) }
+func (e *yaml_event_t) sequence_style() yaml_sequence_style_t { return yaml_sequence_style_t(e.style) }
+func (e *yaml_event_t) mapping_style() yaml_mapping_style_t   { return yaml_mapping_style_t(e.style) }
+
+// Nodes
+
+const (
+	yaml_NULL_TAG      = "tag:yaml.org,2002:null"      // The tag !!null with the only possible value: null.
+	yaml_BOOL_TAG      = "tag:yaml.org,2002:bool"      // The tag !!bool with the values: true and false.
+	yaml_STR_TAG       = "tag:yaml.org,2002:str"       // The tag !!str for string values.
+	yaml_INT_TAG       = "tag:yaml.org,2002:int"       // The tag !!int for integer values.
+	yaml_FLOAT_TAG     = "tag:yaml.org,2002:float"     // The tag !!float for float values.
+	yaml_TIMESTAMP_TAG = "tag:yaml.org,2002:timestamp" // The tag !!timestamp for date and time values.
+
+	yaml_SEQ_TAG = "tag:yaml.org,2002:seq" // The tag !!seq is used to denote sequences.
+	yaml_MAP_TAG = "tag:yaml.org,2002:map" // The tag !!map is used to denote mapping.
+
+	// Not in original libyaml.
+	yaml_BINARY_TAG = "tag:yaml.org,2002:binary"
+	yaml_MERGE_TAG  = "tag:yaml.org,2002:merge"
+
+	yaml_DEFAULT_SCALAR_TAG   = yaml_STR_TAG // The default scalar tag is !!str.
+	yaml_DEFAULT_SEQUENCE_TAG = yaml_SEQ_TAG // The default sequence tag is !!seq.
+	yaml_DEFAULT_MAPPING_TAG  = yaml_MAP_TAG // The default mapping tag is !!map.
+)
+
+type yaml_node_type_t int
+
+// Node types.
+const (
+	// An empty node.
+	yaml_NO_NODE yaml_node_type_t = iota
+
+	yaml_SCALAR_NODE   // A scalar node.
+	yaml_SEQUENCE_NODE // A sequence node.
+	yaml_MAPPING_NODE  // A mapping node.
+)
+
+// An element of a sequence node.
+type yaml_node_item_t int
+
+// An element of a mapping node.
+type yaml_node_pair_t struct {
+	key   int // The key of the element.
+	value int // The value of the element.
+}
+
+// The node structure.
+type yaml_node_t struct {
+	typ yaml_node_type_t // The node type.
+	tag []byte           // The node tag.
+
+	// The node data.
+
+	// The scalar parameters (for yaml_SCALAR_NODE).
+	scalar struct {
+		value  []byte              // The scalar value.
+		length int                 // The length of the scalar value.
+		style  yaml_scalar_style_t // The scalar style.
+	}
+
+	// The sequence parameters (for YAML_SEQUENCE_NODE).
+	sequence struct {
+		items_data []yaml_node_item_t    // The stack of sequence items.
+		style      yaml_sequence_style_t // The sequence style.
+	}
+
+	// The mapping parameters (for yaml_MAPPING_NODE).
+	mapping struct {
+		pairs_data  []yaml_node_pair_t   // The stack of mapping pairs (key, value).
+		pairs_start *yaml_node_pair_t    // The beginning of the stack.
+		pairs_end   *yaml_node_pair_t    // The end of the stack.
+		pairs_top   *yaml_node_pair_t    // The top of the stack.
+		style       yaml_mapping_style_t // The mapping style.
+	}
+
+	start_mark yaml_mark_t // The beginning of the node.
+	end_mark   yaml_mark_t // The end of the node.
+
+}
+
+// The document structure.
+type yaml_document_t struct {
+
+	// The document nodes.
+	nodes []yaml_node_t
+
+	// The version directive.
+	version_directive *yaml_version_directive_t
+
+	// The list of tag directives.
+	tag_directives_data  []yaml_tag_directive_t
+	tag_directives_start int // The beginning of the tag directives list.
+	tag_directives_end   int // The end of the tag directives list.
+
+	start_implicit int // Is the document start indicator implicit?
+	end_implicit   int // Is the document end indicator implicit?
+
+	// The start/end of the document.
+	start_mark, end_mark yaml_mark_t
+}
+
+// The prototype of a read handler.
+//
+// The read handler is called when the parser needs to read more bytes from the
+// source. The handler should write not more than size bytes to the buffer.
+// The number of written bytes should be set to the size_read variable.
+//
+// [in,out]   data        A pointer to an application data specified by
+//                        yaml_parser_set_input().
+// [out]      buffer      The buffer to write the data from the source.
+// [in]       size        The size of the buffer.
+// [out]      size_read   The actual number of bytes read from the source.
+//
+// On success, the handler should return 1.  If the handler failed,
+// the returned value should be 0. On EOF, the handler should set the
+// size_read to 0 and return 1.
+type yaml_read_handler_t func(parser *yaml_parser_t, buffer []byte) (n int, err error)
+
+// This structure holds information about a potential simple key.
+type yaml_simple_key_t struct {
+	possible     bool        // Is a simple key possible?
+	required     bool        // Is a simple key required?
+	token_number int         // The number of the token.
+	mark         yaml_mark_t // The position mark.
+}
+
+// The states of the parser.
+type yaml_parser_state_t int
+
+const (
+	yaml_PARSE_STREAM_START_STATE yaml_parser_state_t = iota
+
+	yaml_PARSE_IMPLICIT_DOCUMENT_START_STATE           // Expect the beginning of an implicit document.
+	yaml_PARSE_DOCUMENT_START_STATE                    // Expect DOCUMENT-START.
+	yaml_PARSE_DOCUMENT_CONTENT_STATE                  // Expect the content of a document.
+	yaml_PARSE_DOCUMENT_END_STATE                      // Expect DOCUMENT-END.
+	yaml_PARSE_BLOCK_NODE_STATE                        // Expect a block node.
+	yaml_PARSE_BLOCK_NODE_OR_INDENTLESS_SEQUENCE_STATE // Expect a block node or indentless sequence.
+	yaml_PARSE_FLOW_NODE_STATE                         // Expect a flow node.
+	yaml_PARSE_BLOCK_SEQUENCE_FIRST_ENTRY_STATE        // Expect the first entry of a block sequence.
+	yaml_PARSE_BLOCK_SEQUENCE_ENTRY_STATE              // Expect an entry of a block sequence.
+	yaml_PARSE_INDENTLESS_SEQUENCE_ENTRY_STATE         // Expect an entry of an indentless sequence.
+	yaml_PARSE_BLOCK_MAPPING_FIRST_KEY_STATE           // Expect the first key of a block mapping.
+	yaml_PARSE_BLOCK_MAPPING_KEY_STATE                 // Expect a block mapping key.
+	yaml_PARSE_BLOCK_MAPPING_VALUE_STATE               // Expect a block mapping value.
+	yaml_PARSE_FLOW_SEQUENCE_FIRST_ENTRY_STATE         // Expect the first entry of a flow sequence.
+	yaml_PARSE_FLOW_SEQUENCE_ENTRY_STATE               // Expect an entry of a flow sequence.
+	yaml_PARSE_FLOW_SEQUENCE_ENTRY_MAPPING_KEY_STATE   // Expect a key of an ordered mapping.
+	yaml_PARSE_FLOW_SEQUENCE_ENTRY_MAPPING_VALUE_STATE // Expect a value of an ordered mapping.
+	yaml_PARSE_FLOW_SEQUENCE_ENTRY_MAPPING_END_STATE   // Expect the and of an ordered mapping entry.
+	yaml_PARSE_FLOW_MAPPING_FIRST_KEY_STATE            // Expect the first key of a flow mapping.
+	yaml_PARSE_FLOW_MAPPING_KEY_STATE                  // Expect a key of a flow mapping.
+	yaml_PARSE_FLOW_MAPPING_VALUE_STATE                // Expect a value of a flow mapping.
+	yaml_PARSE_FLOW_MAPPING_EMPTY_VALUE_STATE          // Expect an empty value of a flow mapping.
+	yaml_PARSE_END_STATE                               // Expect nothing.
+)
+
+func (ps yaml_parser_state_t) String() string {
+	switch ps {
+	case yaml_PARSE_STREAM_START_STATE:
+		return "yaml_PARSE_STREAM_START_STATE"
+	case yaml_PARSE_IMPLICIT_DOCUMENT_START_STATE:
+		return "yaml_PARSE_IMPLICIT_DOCUMENT_START_STATE"
+	case yaml_PARSE_DOCUMENT_START_STATE:
+		return "yaml_PARSE_DOCUMENT_START_STATE"
+	case yaml_PARSE_DOCUMENT_CONTENT_STATE:
+		return "yaml_PARSE_DOCUMENT_CONTENT_STATE"
+	case yaml_PARSE_DOCUMENT_END_STATE:
+		return "yaml_PARSE_DOCUMENT_END_STATE"
+	case yaml_PARSE_BLOCK_NODE_STATE:
+		return "yaml_PARSE_BLOCK_NODE_STATE"
+	case yaml_PARSE_BLOCK_NODE_OR_INDENTLESS_SEQUENCE_STATE:
+		return "yaml_PARSE_BLOCK_NODE_OR_INDENTLESS_SEQUENCE_STATE"
+	case yaml_PARSE_FLOW_NODE_STATE:
+		return "yaml_PARSE_FLOW_NODE_STATE"
+	case yaml_PARSE_BLOCK_SEQUENCE_FIRST_ENTRY_STATE:
+		return "yaml_PARSE_BLOCK_SEQUENCE_FIRST_ENTRY_STATE"
+	case yaml_PARSE_BLOCK_SEQUENCE_ENTRY_STATE:
+		return "yaml_PARSE_BLOCK_SEQUENCE_ENTRY_STATE"
+	case yaml_PARSE_INDENTLESS_SEQUENCE_ENTRY_STATE:
+		return "yaml_PARSE_INDENTLESS_SEQUENCE_ENTRY_STATE"
+	case yaml_PARSE_BLOCK_MAPPING_FIRST_KEY_STATE:
+		return "yaml_PARSE_BLOCK_MAPPING_FIRST_KEY_STATE"
+	case yaml_PARSE_BLOCK_MAPPING_KEY_STATE:
+		return "yaml_PARSE_BLOCK_MAPPING_KEY_STATE"
+	case yaml_PARSE_BLOCK_MAPPING_VALUE_STATE:
+		return "yaml_PARSE_BLOCK_MAPPING_VALUE_STATE"
+	case yaml_PARSE_FLOW_SEQUENCE_FIRST_ENTRY_STATE:
+		return "yaml_PARSE_FLOW_SEQUENCE_FIRST_ENTRY_STATE"
+	case yaml_PARSE_FLOW_SEQUENCE_ENTRY_STATE:
+		return "yaml_PARSE_FLOW_SEQUENCE_ENTRY_STATE"
+	case yaml_PARSE_FLOW_SEQUENCE_ENTRY_MAPPING_KEY_STATE:
+		return "yaml_PARSE_FLOW_SEQUENCE_ENTRY_MAPPING_KEY_STATE"
+	case yaml_PARSE_FLOW_SEQUENCE_ENTRY_MAPPING_VALUE_STATE:
+		return "yaml_PARSE_FLOW_SEQUENCE_ENTRY_MAPPING_VALUE_STATE"
+	case yaml_PARSE_FLOW_SEQUENCE_ENTRY_MAPPING_END_STATE:
+		return "yaml_PARSE_FLOW_SEQUENCE_ENTRY_MAPPING_END_STATE"
+	case yaml_PARSE_FLOW_MAPPING_FIRST_KEY_STATE:
+		return "yaml_PARSE_FLOW_MAPPING_FIRST_KEY_STATE"
+	case yaml_PARSE_FLOW_MAPPING_KEY_STATE:
+		return "yaml_PARSE_FLOW_MAPPING_KEY_STATE"
+	case yaml_PARSE_FLOW_MAPPING_VALUE_STATE:
+		return "yaml_PARSE_FLOW_MAPPING_VALUE_STATE"
+	case yaml_PARSE_FLOW_MAPPING_EMPTY_VALUE_STATE:
+		return "yaml_PARSE_FLOW_MAPPING_EMPTY_VALUE_STATE"
+	case yaml_PARSE_END_STATE:
+		return "yaml_PARSE_END_STATE"
+	}
+	return "<unknown parser state>"
+}
+
+// This structure holds aliases data.
+type yaml_alias_data_t struct {
+	anchor []byte      // The anchor.
+	index  int         // The node id.
+	mark   yaml_mark_t // The anchor mark.
+}
+
+// The parser structure.
+//
+// All members are internal. Manage the structure using the
+// yaml_parser_ family of functions.
+type yaml_parser_t struct {
+
+	// Error handling
+
+	error yaml_error_type_t // Error type.
+
+	problem string // Error description.
+
+	// The byte about which the problem occured.
+	problem_offset int
+	problem_value  int
+	problem_mark   yaml_mark_t
+
+	// The error context.
+	context      string
+	context_mark yaml_mark_t
+
+	// Reader stuff
+
+	read_handler yaml_read_handler_t // Read handler.
+
+	input_file io.Reader // File input data.
+	input      []byte    // String input data.
+	input_pos  int
+
+	eof bool // EOF flag
+
+	buffer     []byte // The working buffer.
+	buffer_pos int    // The current position of the buffer.
+
+	unread int // The number of unread characters in the buffer.
+
+	raw_buffer     []byte // The raw buffer.
+	raw_buffer_pos int    // The current position of the buffer.
+
+	encoding yaml_encoding_t // The input encoding.
+
+	offset int         // The offset of the current position (in bytes).
+	mark   yaml_mark_t // The mark of the current position.
+
+	// Scanner stuff
+
+	stream_start_produced bool // Have we started to scan the input stream?
+	stream_end_produced   bool // Have we reached the end of the input stream?
+
+	flow_level int // The number of unclosed '[' and '{' indicators.
+
+	tokens          []yaml_token_t // The tokens queue.
+	tokens_head     int            // The head of the tokens queue.
+	tokens_parsed   int            // The number of tokens fetched from the queue.
+	token_available bool           // Does the tokens queue contain a token ready for dequeueing.
+
+	indent  int   // The current indentation level.
+	indents []int // The indentation levels stack.
+
+	simple_key_allowed bool                // May a simple key occur at the current position?
+	simple_keys        []yaml_simple_key_t // The stack of simple keys.
+
+	// Parser stuff
+
+	state          yaml_parser_state_t    // The current parser state.
+	states         []yaml_parser_state_t  // The parser states stack.
+	marks          []yaml_mark_t          // The stack of marks.
+	tag_directives []yaml_tag_directive_t // The list of TAG directives.
+
+	// Dumper stuff
+
+	aliases []yaml_alias_data_t // The alias data.
+
+	document *yaml_document_t // The currently parsed document.
+}
+
+// Emitter Definitions
+
+// The prototype of a write handler.
+//
+// The write handler is called when the emitter needs to flush the accumulated
+// characters to the output.  The handler should write @a size bytes of the
+// @a buffer to the output.
+//
+// @param[in,out]   data        A pointer to an application data specified by
+//                              yaml_emitter_set_output().
+// @param[in]       buffer      The buffer with bytes to be written.
+// @param[in]       size        The size of the buffer.
+//
+// @returns On success, the handler should return @c 1.  If the handler failed,
+// the returned value should be @c 0.
+//
+type yaml_write_handler_t func(emitter *yaml_emitter_t, buffer []byte) error
+
+type yaml_emitter_state_t int
+
+// The emitter states.
+const (
+	// Expect STREAM-START.
+	yaml_EMIT_STREAM_START_STATE yaml_emitter_state_t = iota
+
+	yaml_EMIT_FIRST_DOCUMENT_START_STATE       // Expect the first DOCUMENT-START or STREAM-END.
+	yaml_EMIT_DOCUMENT_START_STATE             // Expect DOCUMENT-START or STREAM-END.
+	yaml_EMIT_DOCUMENT_CONTENT_STATE           // Expect the content of a document.
+	yaml_EMIT_DOCUMENT_END_STATE               // Expect DOCUMENT-END.
+	yaml_EMIT_FLOW_SEQUENCE_FIRST_ITEM_STATE   // Expect the first item of a flow sequence.
+	yaml_EMIT_FLOW_SEQUENCE_ITEM_STATE         // Expect an item of a flow sequence.
+	yaml_EMIT_FLOW_MAPPING_FIRST_KEY_STATE     // Expect the first key of a flow mapping.
+	yaml_EMIT_FLOW_MAPPING_KEY_STATE           // Expect a key of a flow mapping.
+	yaml_EMIT_FLOW_MAPPING_SIMPLE_VALUE_STATE  // Expect a value for a simple key of a flow mapping.
+	yaml_EMIT_FLOW_MAPPING_VALUE_STATE         // Expect a value of a flow mapping.
+	yaml_EMIT_BLOCK_SEQUENCE_FIRST_ITEM_STATE  // Expect the first item of a block sequence.
+	yaml_EMIT_BLOCK_SEQUENCE_ITEM_STATE        // Expect an item of a block sequence.
+	yaml_EMIT_BLOCK_MAPPING_FIRST_KEY_STATE    // Expect the first key of a block mapping.
+	yaml_EMIT_BLOCK_MAPPING_KEY_STATE          // Expect the key of a block mapping.
+	yaml_EMIT_BLOCK_MAPPING_SIMPLE_VALUE_STATE // Expect a value for a simple key of a block mapping.
+	yaml_EMIT_BLOCK_MAPPING_VALUE_STATE        // Expect a value of a block mapping.
+	yaml_EMIT_END_STATE                        // Expect nothing.
+)
+
+// The emitter structure.
+//
+// All members are internal.  Manage the structure using the @c yaml_emitter_
+// family of functions.
+type yaml_emitter_t struct {
+
+	// Error handling
+
+	error   yaml_error_type_t // Error type.
+	problem string            // Error description.
+
+	// Writer stuff
+
+	write_handler yaml_write_handler_t // Write handler.
+
+	output_buffer *[]byte   // String output data.
+	output_file   io.Writer // File output data.
+
+	buffer     []byte // The working buffer.
+	buffer_pos int    // The current position of the buffer.
+
+	raw_buffer     []byte // The raw buffer.
+	raw_buffer_pos int    // The current position of the buffer.
+
+	encoding yaml_encoding_t // The stream encoding.
+
+	// Emitter stuff
+
+	canonical   bool         // If the output is in the canonical style?
+	best_indent int          // The number of indentation spaces.
+	best_width  int          // The preferred width of the output lines.
+	unicode     bool         // Allow unescaped non-ASCII characters?
+	line_break  yaml_break_t // The preferred line break.
+
+	state  yaml_emitter_state_t   // The current emitter state.
+	states []yaml_emitter_state_t // The stack of states.
+
+	events      []yaml_event_t // The event queue.
+	events_head int            // The head of the event queue.
+
+	indents []int // The stack of indentation levels.
+
+	tag_directives []yaml_tag_directive_t // The list of tag directives.
+
+	indent int // The current indentation level.
+
+	flow_level int // The current flow level.
+
+	root_context       bool // Is it the document root context?
+	sequence_context   bool // Is it a sequence context?
+	mapping_context    bool // Is it a mapping context?
+	simple_key_context bool // Is it a simple mapping key context?
+
+	line       int  // The current line.
+	column     int  // The current column.
+	whitespace bool // If the last character was a whitespace?
+	indention  bool // If the last character was an indentation character (' ', '-', '?', ':')?
+	open_ended bool // If an explicit document end is required?
+
+	// Anchor analysis.
+	anchor_data struct {
+		anchor []byte // The anchor value.
+		alias  bool   // Is it an alias?
+	}
+
+	// Tag analysis.
+	tag_data struct {
+		handle []byte // The tag handle.
+		suffix []byte // The tag suffix.
+	}
+
+	// Scalar analysis.
+	scalar_data struct {
+		value                 []byte              // The scalar value.
+		multiline             bool                // Does the scalar contain line breaks?
+		flow_plain_allowed    bool                // Can the scalar be expessed in the flow plain style?
+		block_plain_allowed   bool                // Can the scalar be expressed in the block plain style?
+		single_quoted_allowed bool                // Can the scalar be expressed in the single quoted style?
+		block_allowed         bool                // Can the scalar be expressed in the literal or folded styles?
+		style                 yaml_scalar_style_t // The output style.
+	}
+
+	// Dumper stuff
+
+	opened bool // If the stream was already opened?
+	closed bool // If the stream was already closed?
+
+	// The information associated with the document nodes.
+	anchors *struct {
+		references int  // The number of references.
+		anchor     int  // The anchor id.
+		serialized bool // If the node has been emitted?
+	}
+
+	last_anchor_id int // The last assigned anchor id.
+
+	document *yaml_document_t // The currently emitted document.
+}

vendor/gopkg.in/yaml.v2/yamlprivateh.go

@@ -0,0 +1,173 @@
+package yaml
+
+const (
+	// The size of the input raw buffer.
+	input_raw_buffer_size = 512
+
+	// The size of the input buffer.
+	// It should be possible to decode the whole raw buffer.
+	input_buffer_size = input_raw_buffer_size * 3
+
+	// The size of the output buffer.
+	output_buffer_size = 128
+
+	// The size of the output raw buffer.
+	// It should be possible to encode the whole output buffer.
+	output_raw_buffer_size = (output_buffer_size*2 + 2)
+
+	// The size of other stacks and queues.
+	initial_stack_size  = 16
+	initial_queue_size  = 16
+	initial_string_size = 16
+)
+
+// Check if the character at the specified position is an alphabetical
+// character, a digit, '_', or '-'.
+func is_alpha(b []byte, i int) bool {
+	return b[i] >= '0' && b[i] <= '9' || b[i] >= 'A' && b[i] <= 'Z' || b[i] >= 'a' && b[i] <= 'z' || b[i] == '_' || b[i] == '-'
+}
+
+// Check if the character at the specified position is a digit.
+func is_digit(b []byte, i int) bool {
+	return b[i] >= '0' && b[i] <= '9'
+}
+
+// Get the value of a digit.
+func as_digit(b []byte, i int) int {
+	return int(b[i]) - '0'
+}
+
+// Check if the character at the specified position is a hex-digit.
+func is_hex(b []byte, i int) bool {
+	return b[i] >= '0' && b[i] <= '9' || b[i] >= 'A' && b[i] <= 'F' || b[i] >= 'a' && b[i] <= 'f'
+}
+
+// Get the value of a hex-digit.
+func as_hex(b []byte, i int) int {
+	bi := b[i]
+	if bi >= 'A' && bi <= 'F' {
+		return int(bi) - 'A' + 10
+	}
+	if bi >= 'a' && bi <= 'f' {
+		return int(bi) - 'a' + 10
+	}
+	return int(bi) - '0'
+}
+
+// Check if the character is ASCII.
+func is_ascii(b []byte, i int) bool {
+	return b[i] <= 0x7F
+}
+
+// Check if the character at the start of the buffer can be printed unescaped.
+func is_printable(b []byte, i int) bool {
+	return ((b[i] == 0x0A) || // . == #x0A
+		(b[i] >= 0x20 && b[i] <= 0x7E) || // #x20 <= . <= #x7E
+		(b[i] == 0xC2 && b[i+1] >= 0xA0) || // #0xA0 <= . <= #xD7FF
+		(b[i] > 0xC2 && b[i] < 0xED) ||
+		(b[i] == 0xED && b[i+1] < 0xA0) ||
+		(b[i] == 0xEE) ||
+		(b[i] == 0xEF && // #xE000 <= . <= #xFFFD
+			!(b[i+1] == 0xBB && b[i+2] == 0xBF) && // && . != #xFEFF
+			!(b[i+1] == 0xBF && (b[i+2] == 0xBE || b[i+2] == 0xBF))))
+}
+
+// Check if the character at the specified position is NUL.
+func is_z(b []byte, i int) bool {
+	return b[i] == 0x00
+}
+
+// Check if the beginning of the buffer is a BOM.
+func is_bom(b []byte, i int) bool {
+	return b[0] == 0xEF && b[1] == 0xBB && b[2] == 0xBF
+}
+
+// Check if the character at the specified position is space.
+func is_space(b []byte, i int) bool {
+	return b[i] == ' '
+}
+
+// Check if the character at the specified position is tab.
+func is_tab(b []byte, i int) bool {
+	return b[i] == '\t'
+}
+
+// Check if the character at the specified position is blank (space or tab).
+func is_blank(b []byte, i int) bool {
+	//return is_space(b, i) || is_tab(b, i)
+	return b[i] == ' ' || b[i] == '\t'
+}
+
+// Check if the character at the specified position is a line break.
+func is_break(b []byte, i int) bool {
+	return (b[i] == '\r' || // CR (#xD)
+		b[i] == '\n' || // LF (#xA)
+		b[i] == 0xC2 && b[i+1] == 0x85 || // NEL (#x85)
+		b[i] == 0xE2 && b[i+1] == 0x80 && b[i+2] == 0xA8 || // LS (#x2028)
+		b[i] == 0xE2 && b[i+1] == 0x80 && b[i+2] == 0xA9) // PS (#x2029)
+}
+
+func is_crlf(b []byte, i int) bool {
+	return b[i] == '\r' && b[i+1] == '\n'
+}
+
+// Check if the character is a line break or NUL.
+func is_breakz(b []byte, i int) bool {
+	//return is_break(b, i) || is_z(b, i)
+	return (        // is_break:
+	b[i] == '\r' || // CR (#xD)
+		b[i] == '\n' || // LF (#xA)
+		b[i] == 0xC2 && b[i+1] == 0x85 || // NEL (#x85)
+		b[i] == 0xE2 && b[i+1] == 0x80 && b[i+2] == 0xA8 || // LS (#x2028)
+		b[i] == 0xE2 && b[i+1] == 0x80 && b[i+2] == 0xA9 || // PS (#x2029)
+		// is_z:
+		b[i] == 0)
+}
+
+// Check if the character is a line break, space, or NUL.
+func is_spacez(b []byte, i int) bool {
+	//return is_space(b, i) || is_breakz(b, i)
+	return ( // is_space:
+	b[i] == ' ' ||
+		// is_breakz:
+		b[i] == '\r' || // CR (#xD)
+		b[i] == '\n' || // LF (#xA)
+		b[i] == 0xC2 && b[i+1] == 0x85 || // NEL (#x85)
+		b[i] == 0xE2 && b[i+1] == 0x80 && b[i+2] == 0xA8 || // LS (#x2028)
+		b[i] == 0xE2 && b[i+1] == 0x80 && b[i+2] == 0xA9 || // PS (#x2029)
+		b[i] == 0)
+}
+
+// Check if the character is a line break, space, tab, or NUL.
+func is_blankz(b []byte, i int) bool {
+	//return is_blank(b, i) || is_breakz(b, i)
+	return ( // is_blank:
+	b[i] == ' ' || b[i] == '\t' ||
+		// is_breakz:
+		b[i] == '\r' || // CR (#xD)
+		b[i] == '\n' || // LF (#xA)
+		b[i] == 0xC2 && b[i+1] == 0x85 || // NEL (#x85)
+		b[i] == 0xE2 && b[i+1] == 0x80 && b[i+2] == 0xA8 || // LS (#x2028)
+		b[i] == 0xE2 && b[i+1] == 0x80 && b[i+2] == 0xA9 || // PS (#x2029)
+		b[i] == 0)
+}
+
+// Determine the width of the character.
+func width(b byte) int {
+	// Don't replace these by a switch without first
+	// confirming that it is being inlined.
+	if b&0x80 == 0x00 {
+		return 1
+	}
+	if b&0xE0 == 0xC0 {
+		return 2
+	}
+	if b&0xF0 == 0xE0 {
+		return 3
+	}
+	if b&0xF8 == 0xF0 {
+		return 4
+	}
+	return 0
+
+}