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imagetools: use docker/cli formatting
Use the formatting packages provided by docker/cli to comply with the official formatting documentation. https://docs.docker.com/config/formatting/ The use of the official formatting packages also fixes the format templating. Fixes: docker#1175
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,191 @@ | ||
| package commands | ||
|
|
||
| import ( | ||
| "encoding/json" | ||
| "fmt" | ||
|
|
||
| "github.com/docker/buildx/util/imagetools" | ||
| "github.com/docker/cli/cli/command/formatter" | ||
| "github.com/docker/distribution/reference" | ||
| "github.com/moby/buildkit/util/appcontext" | ||
| "github.com/opencontainers/go-digest" | ||
| ocispecs "github.com/opencontainers/image-spec/specs-go/v1" | ||
| ) | ||
|
|
||
| const ( | ||
| tableFormat = "table {{ .Name }}\t{{ .MediaType }}\t{{ .Digest }}" | ||
| prettyTemplate = `{{- if .Name }} | ||
| Name: {{ .Name }} | ||
| {{- end }} | ||
| {{- if .MediaType }} | ||
| MediaType: {{ .MediaType }} | ||
| {{- end }} | ||
| {{- if .Digest }} | ||
| Digest: {{ .Digest }} | ||
| {{- end }} | ||
| {{- if .Manifests }} | ||
| Manifests: | ||
| {{- range $manifest := .Manifests }} | ||
| {{ if $manifest.Name }} | ||
| Name: {{ $manifest.Name }} | ||
| {{- end }} | ||
| {{- if $manifest.MediaType }} | ||
| MediaType: {{ $manifest.MediaType }} | ||
| {{- end }} | ||
| {{- if $manifest.Platform }} | ||
| Platform: {{ $manifest.Platform }} | ||
| {{- end }} | ||
| {{- if $manifest.OSVersion }} | ||
| OSVersion: {{ $manifest.OSVersion }} | ||
| {{- end }} | ||
| {{- if $manifest.OSFeatures }} | ||
| OSFeatures: {{ $manifest.OSFeatures }} | ||
| {{- end }} | ||
| {{- if $manifest.URLs }} | ||
| URLs: {{ $manifest.URLs }} | ||
| {{- end }} | ||
| {{- if $manifest.Annotations }} | ||
| {{ range $key, $value := $manifest.Annotations }} | ||
| {{ $key }}: {{ $value }} | ||
| {{- end }} | ||
| {{- end }} | ||
| {{- end }} | ||
| {{- end }}` | ||
| ) | ||
|
|
||
| func makeFormat(source string) formatter.Format { | ||
| switch source { | ||
| case formatter.PrettyFormatKey: | ||
| return prettyTemplate | ||
| case formatter.TableFormatKey: | ||
| return tableFormat | ||
| case formatter.RawFormatKey: | ||
| return formatter.JSONFormat | ||
| } | ||
| return formatter.Format(source) | ||
| } | ||
|
|
||
| func inspectFormatWrite(ctx formatter.Context, name string, opt imagetools.Opt) error { | ||
| resolver := imagetools.New(opt) | ||
| return ctx.Write(&inspectContext{}, func(format func(formatter.SubContext) error) error { | ||
| ref, err := imagetools.ParseRef(name) | ||
| if err != nil { | ||
| return fmt.Errorf("parse ref: %w", err) | ||
| } | ||
|
|
||
| dt, mfst, err := resolver.Get(appcontext.Context(), ref.String()) | ||
| if err != nil { | ||
| return err | ||
| } | ||
|
|
||
| var index ocispecs.Index | ||
| if err := json.Unmarshal(dt, &index); err != nil { | ||
| return err | ||
| } | ||
|
|
||
| return format(&inspectContext{ | ||
| ref: ref, | ||
| index: index, | ||
| descriptor: mfst, | ||
| resolver: resolver, | ||
| }) | ||
| }) | ||
| } | ||
|
|
||
| type inspectContext struct { | ||
| formatter.HeaderContext | ||
| ref reference.Named | ||
| index ocispecs.Index | ||
| descriptor ocispecs.Descriptor | ||
| resolver *imagetools.Resolver | ||
| } | ||
|
|
||
| func (ctx *inspectContext) MarshalJSON() ([]byte, error) { | ||
| return formatter.MarshalJSON(ctx) | ||
| } | ||
|
|
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| func (ctx *inspectContext) Name() string { | ||
| return ctx.ref.String() | ||
| } | ||
|
|
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| func (ctx *inspectContext) Manifest() manifestList { | ||
| return manifestList{ | ||
| SchemaVersion: ctx.index.Versioned.SchemaVersion, | ||
| MediaType: ctx.index.MediaType, | ||
| Digest: ctx.descriptor.Digest, | ||
| Size: ctx.descriptor.Size, | ||
| Manifests: ctx.index.Manifests, | ||
| Annotations: ctx.descriptor.Annotations, | ||
| } | ||
| } | ||
|
|
||
| func (ctx *inspectContext) Image() (*ocispecs.Image, error) { | ||
| res, err := imagetools. | ||
| NewLoader(ctx.resolver.Resolver()). | ||
| Load(appcontext.Context(), ctx.ref.String()) | ||
| if err != nil { | ||
| return nil, fmt.Errorf("load: %w", err) | ||
| } | ||
| var img *ocispecs.Image | ||
| for _, v := range res.Configs() { | ||
| img = v | ||
| break | ||
| } | ||
| return img, nil | ||
| } | ||
|
|
||
| type manifestList struct { | ||
| SchemaVersion int | ||
| MediaType string | ||
| Digest digest.Digest | ||
| Size int64 | ||
| Manifests []ocispecs.Descriptor | ||
| Annotations map[string]string | ||
| } | ||
|
|
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| // type inspectManifestContext struct { | ||
| // ref reference.Named | ||
| // descriptor ocispecs.Descriptor | ||
| // } | ||
|
|
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| // func (ctx *inspectManifestContext) MarshalJSON() ([]byte, error) { | ||
| // return formatter.MarshalJSON(ctx) | ||
| // } | ||
|
|
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| // func (ctx *inspectManifestContext) Name() (string, error) { | ||
| // cc, err := reference.WithDigest(ctx.ref, ctx.descriptor.Digest) | ||
| // if err != nil { | ||
| // return "", fmt.Errorf("with digest: %w", err) | ||
| // } | ||
| // return cc.String(), nil | ||
| // } | ||
|
|
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| // func (ctx *inspectManifestContext) MediaType() string { | ||
| // return ctx.descriptor.MediaType | ||
| // } | ||
|
|
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| // func (ctx *inspectManifestContext) Platform() *string { | ||
| // if ctx.descriptor.Platform != nil { | ||
| // s := platforms.Format(*ctx.descriptor.Platform) | ||
| // return &s | ||
| // } | ||
| // return nil | ||
| // } | ||
|
|
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| // func (ctx *inspectManifestContext) OSVersion() string { | ||
| // if ctx.descriptor.Platform != nil { | ||
| // return ctx.descriptor.Platform.OSVersion | ||
| // } | ||
| // return "" | ||
| // } | ||
|
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| // func (ctx *inspectManifestContext) OSFeatures() []string { | ||
| // if ctx.descriptor.Platform != nil { | ||
| // return ctx.descriptor.Platform.OSFeatures | ||
| // } | ||
| // return nil | ||
| // } | ||
|
|
||
| // func (ctx *inspectManifestContext) URLs() []string { | ||
| // return ctx.descriptor.URLs | ||
| // } |
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