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fix: use distribution to parse references #275

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Merged
merged 4 commits into from
Oct 20, 2021
Merged

fix: use distribution to parse references #275

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b6d90ea
fix: use distribution to parse references
Oct 12, 2021
a8d8799
fix: keep docker.io if it was specified
Oct 17, 2021
d293996
fix: remove library/ if it was added
Oct 20, 2021
07887fe
Merge branch 'master' into distribution-parse
Oct 20, 2021
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31 changes: 31 additions & 0 deletions pkg/image/image.go
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Original file line number Diff line number Diff line change
Expand Up @@ -5,6 +5,7 @@ import (
"time"

"github.com/argoproj-labs/argocd-image-updater/pkg/tag"
"github.com/distribution/distribution/v3/reference"
)

type ContainerImage struct {
Expand All @@ -22,6 +23,36 @@ type ContainerImageList []*ContainerImage

// NewFromIdentifier parses an image identifier and returns a populated ContainerImage
func NewFromIdentifier(identifier string) *ContainerImage {
imgRef := identifier
alias := ""
if strings.Contains(identifier, "=") {
n := strings.SplitN(identifier, "=", 2)
imgRef = n[1]
alias = n[0]
}
if parsed, err := reference.ParseNormalizedNamed(imgRef); err == nil {
img := ContainerImage{}
img.RegistryURL = reference.Domain(parsed)
// remove default registry for backwards-compatibility
if img.RegistryURL == "docker.io" {
img.RegistryURL = ""
}
img.ImageAlias = alias
img.ImageName = reference.Path(parsed)
if digested, ok := parsed.(reference.Digested); ok {
img.ImageTag = &tag.ImageTag{
TagDigest: string(digested.Digest()),
}
} else if tagged, ok := parsed.(reference.Tagged); ok {
img.ImageTag = &tag.ImageTag{
TagName: tagged.Tag(),
}
}
img.original = identifier
return &img
}

// if distribution couldn't parse it, fall back to the legacy parsing logic
img := ContainerImage{}
img.RegistryURL = getRegistryFromIdentifier(identifier)
img.ImageAlias, img.ImageName, img.ImageTag = getImageTagFromIdentifier(identifier)
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7 changes: 7 additions & 0 deletions pkg/image/image_test.go
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Original file line number Diff line number Diff line change
Expand Up @@ -70,6 +70,13 @@ func Test_ParseImageTags(t *testing.T) {
assert.Equal(t, "jannfis/test-image", image.ImageName)
assert.Nil(t, image.ImageTag)
})
t.Run("#273 classic-web=registry:5000/classic-web", func(t *testing.T) {
image := NewFromIdentifier("classic-web=registry:5000/classic-web")
assert.Equal(t, "registry:5000", image.RegistryURL)
assert.Equal(t, "classic-web", image.ImageAlias)
assert.Equal(t, "classic-web", image.ImageName)
assert.Nil(t, image.ImageTag)
})
}

func Test_ImageToString(t *testing.T) {
Expand Down