initial commit [ci skip]
This commit is contained in:
Brad Rydzewski
71
engine/compiler/image/image.go
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71
engine/compiler/image/image.go
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@@ -0,0 +1,71 @@
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// Copyright 2019 Drone.IO Inc. All rights reserved.
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// Use of this source code is governed by the Polyform License
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// that can be found in the LICENSE file.
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package image
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import "github.com/docker/distribution/reference"
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// Trim returns the short image name without tag.
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func Trim(name string) string {
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ref, err := reference.ParseAnyReference(name)
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if err != nil {
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return name
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}
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named, err := reference.ParseNamed(ref.String())
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if err != nil {
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return name
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}
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named = reference.TrimNamed(named)
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return reference.FamiliarName(named)
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}
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// Expand returns the fully qualified image name.
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func Expand(name string) string {
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ref, err := reference.ParseAnyReference(name)
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if err != nil {
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return name
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}
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named, err := reference.ParseNamed(ref.String())
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if err != nil {
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return name
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}
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named = reference.TagNameOnly(named)
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return named.String()
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}
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// Match returns true if the image name matches
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// an image in the list. Note the image tag is not used
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// in the matching logic.
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func Match(from string, to ...string) bool {
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from = Trim(from)
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for _, match := range to {
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if from == Trim(match) {
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return true
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}
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}
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return false
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}
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// MatchTag returns true if the image name matches
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// an image in the list, including the tag.
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func MatchTag(a, b string) bool {
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return Expand(a) == Expand(b)
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}
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// MatchHostname returns true if the image hostname
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// matches the specified hostname.
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func MatchHostname(image, hostname string) bool {
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ref, err := reference.ParseAnyReference(image)
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if err != nil {
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return false
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}
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named, err := reference.ParseNamed(ref.String())
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if err != nil {
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return false
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}
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if hostname == "index.docker.io" {
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hostname = "docker.io"
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}
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return reference.Domain(named) == hostname
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}
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299
engine/compiler/image/image_test.go
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299
engine/compiler/image/image_test.go
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@@ -0,0 +1,299 @@
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// Copyright 2019 Drone.IO Inc. All rights reserved.
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// Use of this source code is governed by the Polyform License
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// that can be found in the LICENSE file.
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package image
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import "testing"
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func Test_trimImage(t *testing.T) {
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testdata := []struct {
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from string
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want string
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}{
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{
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from: "golang",
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want: "golang",
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},
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{
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from: "golang:latest",
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want: "golang",
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},
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{
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from: "golang:1.0.0",
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want: "golang",
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},
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{
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from: "library/golang",
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want: "golang",
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},
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{
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from: "library/golang:latest",
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want: "golang",
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},
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{
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from: "library/golang:1.0.0",
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want: "golang",
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},
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{
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from: "index.docker.io/library/golang:1.0.0",
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want: "golang",
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},
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{
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from: "docker.io/library/golang:1.0.0",
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want: "golang",
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},
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{
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from: "gcr.io/library/golang:1.0.0",
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want: "gcr.io/library/golang",
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},
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// error cases, return input unmodified
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{
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from: "foo/bar?baz:boo",
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want: "foo/bar?baz:boo",
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},
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}
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for _, test := range testdata {
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got, want := Trim(test.from), test.want
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if got != want {
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t.Errorf("Want image %q trimmed to %q, got %q", test.from, want, got)
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}
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}
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}
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func Test_expandImage(t *testing.T) {
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testdata := []struct {
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from string
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want string
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}{
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{
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from: "golang",
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want: "docker.io/library/golang:latest",
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},
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{
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from: "golang:latest",
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want: "docker.io/library/golang:latest",
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},
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{
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from: "golang:1.0.0",
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want: "docker.io/library/golang:1.0.0",
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},
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{
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from: "library/golang",
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want: "docker.io/library/golang:latest",
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},
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{
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from: "library/golang:latest",
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want: "docker.io/library/golang:latest",
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},
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{
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from: "library/golang:1.0.0",
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want: "docker.io/library/golang:1.0.0",
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},
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{
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from: "index.docker.io/library/golang:1.0.0",
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want: "docker.io/library/golang:1.0.0",
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},
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{
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from: "gcr.io/golang",
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want: "gcr.io/golang:latest",
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},
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{
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from: "gcr.io/golang:1.0.0",
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want: "gcr.io/golang:1.0.0",
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},
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// error cases, return input unmodified
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{
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from: "foo/bar?baz:boo",
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want: "foo/bar?baz:boo",
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},
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}
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for _, test := range testdata {
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got, want := Expand(test.from), test.want
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if got != want {
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t.Errorf("Want image %q expanded to %q, got %q", test.from, want, got)
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}
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}
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}
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func Test_matchImage(t *testing.T) {
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testdata := []struct {
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from, to string
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want bool
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}{
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{
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from: "golang",
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to: "golang",
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want: true,
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},
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{
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from: "golang:latest",
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to: "golang",
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want: true,
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},
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{
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from: "library/golang:latest",
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to: "golang",
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want: true,
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},
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{
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from: "index.docker.io/library/golang:1.0.0",
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to: "golang",
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want: true,
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},
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{
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from: "golang",
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to: "golang:latest",
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want: true,
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},
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{
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from: "library/golang:latest",
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to: "library/golang",
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want: true,
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},
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{
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from: "gcr.io/golang",
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to: "gcr.io/golang",
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want: true,
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},
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{
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from: "gcr.io/golang:1.0.0",
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to: "gcr.io/golang",
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want: true,
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},
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{
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from: "gcr.io/golang:latest",
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to: "gcr.io/golang",
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want: true,
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},
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{
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from: "gcr.io/golang",
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to: "gcr.io/golang:latest",
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want: true,
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},
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{
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from: "golang",
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to: "library/golang",
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want: true,
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},
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{
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from: "golang",
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to: "gcr.io/project/golang",
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want: false,
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},
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{
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from: "golang",
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to: "gcr.io/library/golang",
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want: false,
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},
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{
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from: "golang",
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to: "gcr.io/golang",
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want: false,
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},
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}
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for _, test := range testdata {
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got, want := Match(test.from, test.to), test.want
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if got != want {
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t.Errorf("Want image %q matching %q is %v", test.from, test.to, want)
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}
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}
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}
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func Test_matchHostname(t *testing.T) {
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testdata := []struct {
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image, hostname string
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want bool
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}{
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{
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image: "golang",
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hostname: "docker.io",
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want: true,
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},
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{
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image: "golang:latest",
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hostname: "docker.io",
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want: true,
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},
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{
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image: "golang:latest",
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hostname: "index.docker.io",
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want: true,
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},
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{
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image: "library/golang:latest",
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hostname: "docker.io",
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want: true,
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},
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{
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image: "docker.io/library/golang:1.0.0",
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hostname: "docker.io",
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want: true,
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},
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{
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image: "gcr.io/golang",
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hostname: "docker.io",
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want: false,
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},
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{
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image: "gcr.io/golang:1.0.0",
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hostname: "gcr.io",
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want: true,
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},
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{
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image: "1.2.3.4:8000/golang:1.0.0",
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hostname: "1.2.3.4:8000",
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want: true,
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},
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{
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image: "*&^%",
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hostname: "1.2.3.4:8000",
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want: false,
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},
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}
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for _, test := range testdata {
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got, want := MatchHostname(test.image, test.hostname), test.want
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if got != want {
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t.Errorf("Want image %q matching hostname %q is %v", test.image, test.hostname, want)
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}
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}
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}
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func Test_matchTag(t *testing.T) {
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testdata := []struct {
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a, b string
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want bool
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}{
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{
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a: "golang:1.0",
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b: "golang:1.0",
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want: true,
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},
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{
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a: "golang",
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b: "golang:latest",
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want: true,
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},
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{
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a: "docker.io/library/golang",
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b: "golang:latest",
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want: true,
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},
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{
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a: "golang",
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b: "golang:1.0",
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want: false,
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},
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{
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a: "golang:1.0",
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b: "golang:2.0",
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want: false,
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},
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}
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for _, test := range testdata {
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got, want := MatchTag(test.a, test.b), test.want
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if got != want {
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t.Errorf("Want image %q matching image tag %q is %v", test.a, test.b, want)
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}
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}
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}
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