From 4263229a7b2775f4294cada91ccde988586019ff Mon Sep 17 00:00:00 2001 From: Shengjing Zhu Date: Thu, 16 Apr 2020 03:29:43 +0800 Subject: [PATCH 1/2] Replace docker/distribution/reference with containerd/reference/docker Since https://github.com/containerd/containerd/pull/3728 The docker/distribution/reference package is copied into containerd core Signed-off-by: Shengjing Zhu --- pkg/server/helpers.go | 16 ++++++++-------- pkg/server/helpers_test.go | 4 ++-- pkg/server/image_pull.go | 2 +- pkg/util/image.go | 8 ++++---- 4 files changed, 15 insertions(+), 15 deletions(-) diff --git a/pkg/server/helpers.go b/pkg/server/helpers.go index 163629f8a..965d64a3f 100644 --- a/pkg/server/helpers.go +++ b/pkg/server/helpers.go @@ -28,10 +28,10 @@ import ( "github.com/containerd/containerd" "github.com/containerd/containerd/containers" "github.com/containerd/containerd/plugin" + "github.com/containerd/containerd/reference/docker" "github.com/containerd/containerd/runtime/linux/runctypes" runcoptions "github.com/containerd/containerd/runtime/v2/runc/options" "github.com/containerd/typeurl" - "github.com/docker/distribution/reference" imagedigest "github.com/opencontainers/go-digest" "github.com/pkg/errors" "golang.org/x/net/context" @@ -146,12 +146,12 @@ func criContainerStateToString(state runtime.ContainerState) string { } // getRepoDigestAngTag returns image repoDigest and repoTag of the named image reference. -func getRepoDigestAndTag(namedRef reference.Named, digest imagedigest.Digest, schema1 bool) (string, string) { +func getRepoDigestAndTag(namedRef docker.Named, digest imagedigest.Digest, schema1 bool) (string, string) { var repoTag, repoDigest string - if _, ok := namedRef.(reference.NamedTagged); ok { + if _, ok := namedRef.(docker.NamedTagged); ok { repoTag = namedRef.String() } - if _, ok := namedRef.(reference.Canonical); ok { + if _, ok := namedRef.(docker.Canonical); ok { repoDigest = namedRef.String() } else if !schema1 { // digest is not actual repo digest for schema1 image. @@ -170,7 +170,7 @@ func (c *criService) localResolve(refOrID string) (imagestore.Image, error) { return func(ref string) string { // ref is not image id, try to resolve it locally. // TODO(random-liu): Handle this error better for debugging. - normalized, err := reference.ParseDockerRef(ref) + normalized, err := docker.ParseDockerRef(ref) if err != nil { return "" } @@ -283,13 +283,13 @@ func toRuntimeAuthConfig(a criconfig.AuthConfig) *runtime.AuthConfig { func parseImageReferences(refs []string) ([]string, []string) { var tags, digests []string for _, ref := range refs { - parsed, err := reference.ParseAnyReference(ref) + parsed, err := docker.ParseAnyReference(ref) if err != nil { continue } - if _, ok := parsed.(reference.Canonical); ok { + if _, ok := parsed.(docker.Canonical); ok { digests = append(digests, parsed.String()) - } else if _, ok := parsed.(reference.Tagged); ok { + } else if _, ok := parsed.(docker.Tagged); ok { tags = append(tags, parsed.String()) } } diff --git a/pkg/server/helpers_test.go b/pkg/server/helpers_test.go index de5bd9e1a..a67f587fa 100644 --- a/pkg/server/helpers_test.go +++ b/pkg/server/helpers_test.go @@ -24,9 +24,9 @@ import ( "github.com/BurntSushi/toml" "github.com/containerd/containerd/oci" "github.com/containerd/containerd/plugin" + "github.com/containerd/containerd/reference/docker" "github.com/containerd/containerd/runtime/linux/runctypes" runcoptions "github.com/containerd/containerd/runtime/v2/runc/options" - "github.com/docker/distribution/reference" imagedigest "github.com/opencontainers/go-digest" runtimespec "github.com/opencontainers/runtime-spec/specs-go" "github.com/stretchr/testify/assert" @@ -107,7 +107,7 @@ func TestGetRepoDigestAndTag(t *testing.T) { }, } { t.Logf("TestCase %q", desc) - named, err := reference.ParseDockerRef(test.ref) + named, err := docker.ParseDockerRef(test.ref) assert.NoError(t, err) repoDigest, repoTag := getRepoDigestAndTag(named, digest, test.schema1) assert.Equal(t, test.expectedRepoDigest, repoDigest) diff --git a/pkg/server/image_pull.go b/pkg/server/image_pull.go index 5e2df2b24..d2457a267 100644 --- a/pkg/server/image_pull.go +++ b/pkg/server/image_pull.go @@ -31,10 +31,10 @@ import ( "github.com/containerd/containerd/errdefs" containerdimages "github.com/containerd/containerd/images" "github.com/containerd/containerd/log" + distribution "github.com/containerd/containerd/reference/docker" "github.com/containerd/containerd/remotes/docker" "github.com/containerd/imgcrypt" "github.com/containerd/imgcrypt/images/encryption" - distribution "github.com/docker/distribution/reference" imagespec "github.com/opencontainers/image-spec/specs-go/v1" "github.com/pkg/errors" "golang.org/x/net/context" diff --git a/pkg/util/image.go b/pkg/util/image.go index 3a9883604..f046a8c9d 100644 --- a/pkg/util/image.go +++ b/pkg/util/image.go @@ -17,7 +17,7 @@ limitations under the License. package util import ( - "github.com/docker/distribution/reference" + "github.com/containerd/containerd/reference/docker" ) // NormalizeImageRef normalizes the image reference following the docker convention. This is added @@ -27,7 +27,7 @@ import ( // sha256:7cc4b5aefd1d0cadf8d97d4350462ba51c694ebca145b08d7d41b41acc8db5aa will be returned as // docker.io/library/busybox@sha256:7cc4b5aefd1d0cadf8d97d4350462ba51c694ebca145b08d7d41b41acc8db5aa. // -// Deprecated: use github.com/docker/reference.ParseDockerRef() instead -func NormalizeImageRef(ref string) (reference.Named, error) { - return reference.ParseDockerRef(ref) +// Deprecated: use github.com/containerd/containerd/reference/docker.ParseDockerRef() instead +func NormalizeImageRef(ref string) (docker.Named, error) { + return docker.ParseDockerRef(ref) } From 4cee89baf54131f68d4e2fe7be2c1e2e4c234e0b Mon Sep 17 00:00:00 2001 From: Shengjing Zhu Date: Thu, 16 Apr 2020 03:30:06 +0800 Subject: [PATCH 2/2] Update vendor after dropping depends distribution/reference Signed-off-by: Shengjing Zhu --- .../docker/distribution/reference/helpers.go | 42 -- .../distribution/reference/normalize.go | 199 -------- .../distribution/reference/reference.go | 433 ------------------ .../docker/distribution/reference/regexp.go | 143 ------ 4 files changed, 817 deletions(-) delete mode 100644 vendor/github.com/docker/distribution/reference/helpers.go delete mode 100644 vendor/github.com/docker/distribution/reference/normalize.go delete mode 100644 vendor/github.com/docker/distribution/reference/reference.go delete mode 100644 vendor/github.com/docker/distribution/reference/regexp.go diff --git a/vendor/github.com/docker/distribution/reference/helpers.go b/vendor/github.com/docker/distribution/reference/helpers.go deleted file mode 100644 index 978df7eab..000000000 --- a/vendor/github.com/docker/distribution/reference/helpers.go +++ /dev/null @@ -1,42 +0,0 @@ -package reference - -import "path" - -// IsNameOnly returns true if reference only contains a repo name. -func IsNameOnly(ref Named) bool { - if _, ok := ref.(NamedTagged); ok { - return false - } - if _, ok := ref.(Canonical); ok { - return false - } - return true -} - -// FamiliarName returns the familiar name string -// for the given named, familiarizing if needed. -func FamiliarName(ref Named) string { - if nn, ok := ref.(normalizedNamed); ok { - return nn.Familiar().Name() - } - return ref.Name() -} - -// FamiliarString returns the familiar string representation -// for the given reference, familiarizing if needed. -func FamiliarString(ref Reference) string { - if nn, ok := ref.(normalizedNamed); ok { - return nn.Familiar().String() - } - return ref.String() -} - -// FamiliarMatch reports whether ref matches the specified pattern. -// See https://godoc.org/path#Match for supported patterns. -func FamiliarMatch(pattern string, ref Reference) (bool, error) { - matched, err := path.Match(pattern, FamiliarString(ref)) - if namedRef, isNamed := ref.(Named); isNamed && !matched { - matched, _ = path.Match(pattern, FamiliarName(namedRef)) - } - return matched, err -} diff --git a/vendor/github.com/docker/distribution/reference/normalize.go b/vendor/github.com/docker/distribution/reference/normalize.go deleted file mode 100644 index b3dfb7a6d..000000000 --- a/vendor/github.com/docker/distribution/reference/normalize.go +++ /dev/null @@ -1,199 +0,0 @@ -package reference - -import ( - "errors" - "fmt" - "strings" - - "github.com/docker/distribution/digestset" - "github.com/opencontainers/go-digest" -) - -var ( - legacyDefaultDomain = "index.docker.io" - defaultDomain = "docker.io" - officialRepoName = "library" - defaultTag = "latest" -) - -// normalizedNamed represents a name which has been -// normalized and has a familiar form. A familiar name -// is what is used in Docker UI. An example normalized -// name is "docker.io/library/ubuntu" and corresponding -// familiar name of "ubuntu". -type normalizedNamed interface { - Named - Familiar() Named -} - -// ParseNormalizedNamed parses a string into a named reference -// transforming a familiar name from Docker UI to a fully -// qualified reference. If the value may be an identifier -// use ParseAnyReference. -func ParseNormalizedNamed(s string) (Named, error) { - if ok := anchoredIdentifierRegexp.MatchString(s); ok { - return nil, fmt.Errorf("invalid repository name (%s), cannot specify 64-byte hexadecimal strings", s) - } - domain, remainder := splitDockerDomain(s) - var remoteName string - if tagSep := strings.IndexRune(remainder, ':'); tagSep > -1 { - remoteName = remainder[:tagSep] - } else { - remoteName = remainder - } - if strings.ToLower(remoteName) != remoteName { - return nil, errors.New("invalid reference format: repository name must be lowercase") - } - - ref, err := Parse(domain + "/" + remainder) - if err != nil { - return nil, err - } - named, isNamed := ref.(Named) - if !isNamed { - return nil, fmt.Errorf("reference %s has no name", ref.String()) - } - return named, nil -} - -// ParseDockerRef normalizes the image reference following the docker convention. This is added -// mainly for backward compatibility. -// The reference returned can only be either tagged or digested. For reference contains both tag -// and digest, the function returns digested reference, e.g. docker.io/library/busybox:latest@ -// sha256:7cc4b5aefd1d0cadf8d97d4350462ba51c694ebca145b08d7d41b41acc8db5aa will be returned as -// docker.io/library/busybox@sha256:7cc4b5aefd1d0cadf8d97d4350462ba51c694ebca145b08d7d41b41acc8db5aa. -func ParseDockerRef(ref string) (Named, error) { - named, err := ParseNormalizedNamed(ref) - if err != nil { - return nil, err - } - if _, ok := named.(NamedTagged); ok { - if canonical, ok := named.(Canonical); ok { - // The reference is both tagged and digested, only - // return digested. - newNamed, err := WithName(canonical.Name()) - if err != nil { - return nil, err - } - newCanonical, err := WithDigest(newNamed, canonical.Digest()) - if err != nil { - return nil, err - } - return newCanonical, nil - } - } - return TagNameOnly(named), nil -} - -// splitDockerDomain splits a repository name to domain and remotename string. -// If no valid domain is found, the default domain is used. Repository name -// needs to be already validated before. -func splitDockerDomain(name string) (domain, remainder string) { - i := strings.IndexRune(name, '/') - if i == -1 || (!strings.ContainsAny(name[:i], ".:") && name[:i] != "localhost") { - domain, remainder = defaultDomain, name - } else { - domain, remainder = name[:i], name[i+1:] - } - if domain == legacyDefaultDomain { - domain = defaultDomain - } - if domain == defaultDomain && !strings.ContainsRune(remainder, '/') { - remainder = officialRepoName + "/" + remainder - } - return -} - -// familiarizeName returns a shortened version of the name familiar -// to to the Docker UI. Familiar names have the default domain -// "docker.io" and "library/" repository prefix removed. -// For example, "docker.io/library/redis" will have the familiar -// name "redis" and "docker.io/dmcgowan/myapp" will be "dmcgowan/myapp". -// Returns a familiarized named only reference. -func familiarizeName(named namedRepository) repository { - repo := repository{ - domain: named.Domain(), - path: named.Path(), - } - - if repo.domain == defaultDomain { - repo.domain = "" - // Handle official repositories which have the pattern "library/" - if split := strings.Split(repo.path, "/"); len(split) == 2 && split[0] == officialRepoName { - repo.path = split[1] - } - } - return repo -} - -func (r reference) Familiar() Named { - return reference{ - namedRepository: familiarizeName(r.namedRepository), - tag: r.tag, - digest: r.digest, - } -} - -func (r repository) Familiar() Named { - return familiarizeName(r) -} - -func (t taggedReference) Familiar() Named { - return taggedReference{ - namedRepository: familiarizeName(t.namedRepository), - tag: t.tag, - } -} - -func (c canonicalReference) Familiar() Named { - return canonicalReference{ - namedRepository: familiarizeName(c.namedRepository), - digest: c.digest, - } -} - -// TagNameOnly adds the default tag "latest" to a reference if it only has -// a repo name. -func TagNameOnly(ref Named) Named { - if IsNameOnly(ref) { - namedTagged, err := WithTag(ref, defaultTag) - if err != nil { - // Default tag must be valid, to create a NamedTagged - // type with non-validated input the WithTag function - // should be used instead - panic(err) - } - return namedTagged - } - return ref -} - -// ParseAnyReference parses a reference string as a possible identifier, -// full digest, or familiar name. -func ParseAnyReference(ref string) (Reference, error) { - if ok := anchoredIdentifierRegexp.MatchString(ref); ok { - return digestReference("sha256:" + ref), nil - } - if dgst, err := digest.Parse(ref); err == nil { - return digestReference(dgst), nil - } - - return ParseNormalizedNamed(ref) -} - -// ParseAnyReferenceWithSet parses a reference string as a possible short -// identifier to be matched in a digest set, a full digest, or familiar name. -func ParseAnyReferenceWithSet(ref string, ds *digestset.Set) (Reference, error) { - if ok := anchoredShortIdentifierRegexp.MatchString(ref); ok { - dgst, err := ds.Lookup(ref) - if err == nil { - return digestReference(dgst), nil - } - } else { - if dgst, err := digest.Parse(ref); err == nil { - return digestReference(dgst), nil - } - } - - return ParseNormalizedNamed(ref) -} diff --git a/vendor/github.com/docker/distribution/reference/reference.go b/vendor/github.com/docker/distribution/reference/reference.go deleted file mode 100644 index 8c0c23b2f..000000000 --- a/vendor/github.com/docker/distribution/reference/reference.go +++ /dev/null @@ -1,433 +0,0 @@ -// Package reference provides a general type to represent any way of referencing images within the registry. -// Its main purpose is to abstract tags and digests (content-addressable hash). -// -// Grammar -// -// reference := name [ ":" tag ] [ "@" digest ] -// name := [domain '/'] path-component ['/' path-component]* -// domain := domain-component ['.' domain-component]* [':' port-number] -// domain-component := /([a-zA-Z0-9]|[a-zA-Z0-9][a-zA-Z0-9-]*[a-zA-Z0-9])/ -// port-number := /[0-9]+/ -// path-component := alpha-numeric [separator alpha-numeric]* -// alpha-numeric := /[a-z0-9]+/ -// separator := /[_.]|__|[-]*/ -// -// tag := /[\w][\w.-]{0,127}/ -// -// digest := digest-algorithm ":" digest-hex -// digest-algorithm := digest-algorithm-component [ digest-algorithm-separator digest-algorithm-component ]* -// digest-algorithm-separator := /[+.-_]/ -// digest-algorithm-component := /[A-Za-z][A-Za-z0-9]*/ -// digest-hex := /[0-9a-fA-F]{32,}/ ; At least 128 bit digest value -// -// identifier := /[a-f0-9]{64}/ -// short-identifier := /[a-f0-9]{6,64}/ -package reference - -import ( - "errors" - "fmt" - "strings" - - "github.com/opencontainers/go-digest" -) - -const ( - // NameTotalLengthMax is the maximum total number of characters in a repository name. - NameTotalLengthMax = 255 -) - -var ( - // ErrReferenceInvalidFormat represents an error while trying to parse a string as a reference. - ErrReferenceInvalidFormat = errors.New("invalid reference format") - - // ErrTagInvalidFormat represents an error while trying to parse a string as a tag. - ErrTagInvalidFormat = errors.New("invalid tag format") - - // ErrDigestInvalidFormat represents an error while trying to parse a string as a tag. - ErrDigestInvalidFormat = errors.New("invalid digest format") - - // ErrNameContainsUppercase is returned for invalid repository names that contain uppercase characters. - ErrNameContainsUppercase = errors.New("repository name must be lowercase") - - // ErrNameEmpty is returned for empty, invalid repository names. - ErrNameEmpty = errors.New("repository name must have at least one component") - - // ErrNameTooLong is returned when a repository name is longer than NameTotalLengthMax. - ErrNameTooLong = fmt.Errorf("repository name must not be more than %v characters", NameTotalLengthMax) - - // ErrNameNotCanonical is returned when a name is not canonical. - ErrNameNotCanonical = errors.New("repository name must be canonical") -) - -// Reference is an opaque object reference identifier that may include -// modifiers such as a hostname, name, tag, and digest. -type Reference interface { - // String returns the full reference - String() string -} - -// Field provides a wrapper type for resolving correct reference types when -// working with encoding. -type Field struct { - reference Reference -} - -// AsField wraps a reference in a Field for encoding. -func AsField(reference Reference) Field { - return Field{reference} -} - -// Reference unwraps the reference type from the field to -// return the Reference object. This object should be -// of the appropriate type to further check for different -// reference types. -func (f Field) Reference() Reference { - return f.reference -} - -// MarshalText serializes the field to byte text which -// is the string of the reference. -func (f Field) MarshalText() (p []byte, err error) { - return []byte(f.reference.String()), nil -} - -// UnmarshalText parses text bytes by invoking the -// reference parser to ensure the appropriately -// typed reference object is wrapped by field. -func (f *Field) UnmarshalText(p []byte) error { - r, err := Parse(string(p)) - if err != nil { - return err - } - - f.reference = r - return nil -} - -// Named is an object with a full name -type Named interface { - Reference - Name() string -} - -// Tagged is an object which has a tag -type Tagged interface { - Reference - Tag() string -} - -// NamedTagged is an object including a name and tag. -type NamedTagged interface { - Named - Tag() string -} - -// Digested is an object which has a digest -// in which it can be referenced by -type Digested interface { - Reference - Digest() digest.Digest -} - -// Canonical reference is an object with a fully unique -// name including a name with domain and digest -type Canonical interface { - Named - Digest() digest.Digest -} - -// namedRepository is a reference to a repository with a name. -// A namedRepository has both domain and path components. -type namedRepository interface { - Named - Domain() string - Path() string -} - -// Domain returns the domain part of the Named reference -func Domain(named Named) string { - if r, ok := named.(namedRepository); ok { - return r.Domain() - } - domain, _ := splitDomain(named.Name()) - return domain -} - -// Path returns the name without the domain part of the Named reference -func Path(named Named) (name string) { - if r, ok := named.(namedRepository); ok { - return r.Path() - } - _, path := splitDomain(named.Name()) - return path -} - -func splitDomain(name string) (string, string) { - match := anchoredNameRegexp.FindStringSubmatch(name) - if len(match) != 3 { - return "", name - } - return match[1], match[2] -} - -// SplitHostname splits a named reference into a -// hostname and name string. If no valid hostname is -// found, the hostname is empty and the full value -// is returned as name -// DEPRECATED: Use Domain or Path -func SplitHostname(named Named) (string, string) { - if r, ok := named.(namedRepository); ok { - return r.Domain(), r.Path() - } - return splitDomain(named.Name()) -} - -// Parse parses s and returns a syntactically valid Reference. -// If an error was encountered it is returned, along with a nil Reference. -// NOTE: Parse will not handle short digests. -func Parse(s string) (Reference, error) { - matches := ReferenceRegexp.FindStringSubmatch(s) - if matches == nil { - if s == "" { - return nil, ErrNameEmpty - } - if ReferenceRegexp.FindStringSubmatch(strings.ToLower(s)) != nil { - return nil, ErrNameContainsUppercase - } - return nil, ErrReferenceInvalidFormat - } - - if len(matches[1]) > NameTotalLengthMax { - return nil, ErrNameTooLong - } - - var repo repository - - nameMatch := anchoredNameRegexp.FindStringSubmatch(matches[1]) - if len(nameMatch) == 3 { - repo.domain = nameMatch[1] - repo.path = nameMatch[2] - } else { - repo.domain = "" - repo.path = matches[1] - } - - ref := reference{ - namedRepository: repo, - tag: matches[2], - } - if matches[3] != "" { - var err error - ref.digest, err = digest.Parse(matches[3]) - if err != nil { - return nil, err - } - } - - r := getBestReferenceType(ref) - if r == nil { - return nil, ErrNameEmpty - } - - return r, nil -} - -// ParseNamed parses s and returns a syntactically valid reference implementing -// the Named interface. The reference must have a name and be in the canonical -// form, otherwise an error is returned. -// If an error was encountered it is returned, along with a nil Reference. -// NOTE: ParseNamed will not handle short digests. -func ParseNamed(s string) (Named, error) { - named, err := ParseNormalizedNamed(s) - if err != nil { - return nil, err - } - if named.String() != s { - return nil, ErrNameNotCanonical - } - return named, nil -} - -// WithName returns a named object representing the given string. If the input -// is invalid ErrReferenceInvalidFormat will be returned. -func WithName(name string) (Named, error) { - if len(name) > NameTotalLengthMax { - return nil, ErrNameTooLong - } - - match := anchoredNameRegexp.FindStringSubmatch(name) - if match == nil || len(match) != 3 { - return nil, ErrReferenceInvalidFormat - } - return repository{ - domain: match[1], - path: match[2], - }, nil -} - -// WithTag combines the name from "name" and the tag from "tag" to form a -// reference incorporating both the name and the tag. -func WithTag(name Named, tag string) (NamedTagged, error) { - if !anchoredTagRegexp.MatchString(tag) { - return nil, ErrTagInvalidFormat - } - var repo repository - if r, ok := name.(namedRepository); ok { - repo.domain = r.Domain() - repo.path = r.Path() - } else { - repo.path = name.Name() - } - if canonical, ok := name.(Canonical); ok { - return reference{ - namedRepository: repo, - tag: tag, - digest: canonical.Digest(), - }, nil - } - return taggedReference{ - namedRepository: repo, - tag: tag, - }, nil -} - -// WithDigest combines the name from "name" and the digest from "digest" to form -// a reference incorporating both the name and the digest. -func WithDigest(name Named, digest digest.Digest) (Canonical, error) { - if !anchoredDigestRegexp.MatchString(digest.String()) { - return nil, ErrDigestInvalidFormat - } - var repo repository - if r, ok := name.(namedRepository); ok { - repo.domain = r.Domain() - repo.path = r.Path() - } else { - repo.path = name.Name() - } - if tagged, ok := name.(Tagged); ok { - return reference{ - namedRepository: repo, - tag: tagged.Tag(), - digest: digest, - }, nil - } - return canonicalReference{ - namedRepository: repo, - digest: digest, - }, nil -} - -// TrimNamed removes any tag or digest from the named reference. -func TrimNamed(ref Named) Named { - domain, path := SplitHostname(ref) - return repository{ - domain: domain, - path: path, - } -} - -func getBestReferenceType(ref reference) Reference { - if ref.Name() == "" { - // Allow digest only references - if ref.digest != "" { - return digestReference(ref.digest) - } - return nil - } - if ref.tag == "" { - if ref.digest != "" { - return canonicalReference{ - namedRepository: ref.namedRepository, - digest: ref.digest, - } - } - return ref.namedRepository - } - if ref.digest == "" { - return taggedReference{ - namedRepository: ref.namedRepository, - tag: ref.tag, - } - } - - return ref -} - -type reference struct { - namedRepository - tag string - digest digest.Digest -} - -func (r reference) String() string { - return r.Name() + ":" + r.tag + "@" + r.digest.String() -} - -func (r reference) Tag() string { - return r.tag -} - -func (r reference) Digest() digest.Digest { - return r.digest -} - -type repository struct { - domain string - path string -} - -func (r repository) String() string { - return r.Name() -} - -func (r repository) Name() string { - if r.domain == "" { - return r.path - } - return r.domain + "/" + r.path -} - -func (r repository) Domain() string { - return r.domain -} - -func (r repository) Path() string { - return r.path -} - -type digestReference digest.Digest - -func (d digestReference) String() string { - return digest.Digest(d).String() -} - -func (d digestReference) Digest() digest.Digest { - return digest.Digest(d) -} - -type taggedReference struct { - namedRepository - tag string -} - -func (t taggedReference) String() string { - return t.Name() + ":" + t.tag -} - -func (t taggedReference) Tag() string { - return t.tag -} - -type canonicalReference struct { - namedRepository - digest digest.Digest -} - -func (c canonicalReference) String() string { - return c.Name() + "@" + c.digest.String() -} - -func (c canonicalReference) Digest() digest.Digest { - return c.digest -} diff --git a/vendor/github.com/docker/distribution/reference/regexp.go b/vendor/github.com/docker/distribution/reference/regexp.go deleted file mode 100644 index 786034932..000000000 --- a/vendor/github.com/docker/distribution/reference/regexp.go +++ /dev/null @@ -1,143 +0,0 @@ -package reference - -import "regexp" - -var ( - // alphaNumericRegexp defines the alpha numeric atom, typically a - // component of names. This only allows lower case characters and digits. - alphaNumericRegexp = match(`[a-z0-9]+`) - - // separatorRegexp defines the separators allowed to be embedded in name - // components. This allow one period, one or two underscore and multiple - // dashes. - separatorRegexp = match(`(?:[._]|__|[-]*)`) - - // nameComponentRegexp restricts registry path component names to start - // with at least one letter or number, with following parts able to be - // separated by one period, one or two underscore and multiple dashes. - nameComponentRegexp = expression( - alphaNumericRegexp, - optional(repeated(separatorRegexp, alphaNumericRegexp))) - - // domainComponentRegexp restricts the registry domain component of a - // repository name to start with a component as defined by DomainRegexp - // and followed by an optional port. - domainComponentRegexp = match(`(?:[a-zA-Z0-9]|[a-zA-Z0-9][a-zA-Z0-9-]*[a-zA-Z0-9])`) - - // DomainRegexp defines the structure of potential domain components - // that may be part of image names. This is purposely a subset of what is - // allowed by DNS to ensure backwards compatibility with Docker image - // names. - DomainRegexp = expression( - domainComponentRegexp, - optional(repeated(literal(`.`), domainComponentRegexp)), - optional(literal(`:`), match(`[0-9]+`))) - - // TagRegexp matches valid tag names. From docker/docker:graph/tags.go. - TagRegexp = match(`[\w][\w.-]{0,127}`) - - // anchoredTagRegexp matches valid tag names, anchored at the start and - // end of the matched string. - anchoredTagRegexp = anchored(TagRegexp) - - // DigestRegexp matches valid digests. - DigestRegexp = match(`[A-Za-z][A-Za-z0-9]*(?:[-_+.][A-Za-z][A-Za-z0-9]*)*[:][[:xdigit:]]{32,}`) - - // anchoredDigestRegexp matches valid digests, anchored at the start and - // end of the matched string. - anchoredDigestRegexp = anchored(DigestRegexp) - - // NameRegexp is the format for the name component of references. The - // regexp has capturing groups for the domain and name part omitting - // the separating forward slash from either. - NameRegexp = expression( - optional(DomainRegexp, literal(`/`)), - nameComponentRegexp, - optional(repeated(literal(`/`), nameComponentRegexp))) - - // anchoredNameRegexp is used to parse a name value, capturing the - // domain and trailing components. - anchoredNameRegexp = anchored( - optional(capture(DomainRegexp), literal(`/`)), - capture(nameComponentRegexp, - optional(repeated(literal(`/`), nameComponentRegexp)))) - - // ReferenceRegexp is the full supported format of a reference. The regexp - // is anchored and has capturing groups for name, tag, and digest - // components. - ReferenceRegexp = anchored(capture(NameRegexp), - optional(literal(":"), capture(TagRegexp)), - optional(literal("@"), capture(DigestRegexp))) - - // IdentifierRegexp is the format for string identifier used as a - // content addressable identifier using sha256. These identifiers - // are like digests without the algorithm, since sha256 is used. - IdentifierRegexp = match(`([a-f0-9]{64})`) - - // ShortIdentifierRegexp is the format used to represent a prefix - // of an identifier. A prefix may be used to match a sha256 identifier - // within a list of trusted identifiers. - ShortIdentifierRegexp = match(`([a-f0-9]{6,64})`) - - // anchoredIdentifierRegexp is used to check or match an - // identifier value, anchored at start and end of string. - anchoredIdentifierRegexp = anchored(IdentifierRegexp) - - // anchoredShortIdentifierRegexp is used to check if a value - // is a possible identifier prefix, anchored at start and end - // of string. - anchoredShortIdentifierRegexp = anchored(ShortIdentifierRegexp) -) - -// match compiles the string to a regular expression. -var match = regexp.MustCompile - -// literal compiles s into a literal regular expression, escaping any regexp -// reserved characters. -func literal(s string) *regexp.Regexp { - re := match(regexp.QuoteMeta(s)) - - if _, complete := re.LiteralPrefix(); !complete { - panic("must be a literal") - } - - return re -} - -// expression defines a full expression, where each regular expression must -// follow the previous. -func expression(res ...*regexp.Regexp) *regexp.Regexp { - var s string - for _, re := range res { - s += re.String() - } - - return match(s) -} - -// optional wraps the expression in a non-capturing group and makes the -// production optional. -func optional(res ...*regexp.Regexp) *regexp.Regexp { - return match(group(expression(res...)).String() + `?`) -} - -// repeated wraps the regexp in a non-capturing group to get one or more -// matches. -func repeated(res ...*regexp.Regexp) *regexp.Regexp { - return match(group(expression(res...)).String() + `+`) -} - -// group wraps the regexp in a non-capturing group. -func group(res ...*regexp.Regexp) *regexp.Regexp { - return match(`(?:` + expression(res...).String() + `)`) -} - -// capture wraps the expression in a capturing group. -func capture(res ...*regexp.Regexp) *regexp.Regexp { - return match(`(` + expression(res...).String() + `)`) -} - -// anchored anchors the regular expression by adding start and end delimiters. -func anchored(res ...*regexp.Regexp) *regexp.Regexp { - return match(`^` + expression(res...).String() + `$`) -}