mirror of
https://gitea.com/Lydanne/buildx.git
synced 2025-07-10 05:27:07 +08:00
imagetools inspect: add --format flag
Signed-off-by: CrazyMax <crazy-max@users.noreply.github.com>
This commit is contained in:
CrazyMax
@ -1,74 +1,242 @@
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package imagetools
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import (
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"context"
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"encoding/base64"
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"encoding/json"
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"fmt"
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"io"
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"os"
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"strings"
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"text/tabwriter"
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"text/template"
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"github.com/containerd/containerd/images"
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"github.com/containerd/containerd/platforms"
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"github.com/docker/distribution/reference"
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ocispec "github.com/opencontainers/image-spec/specs-go/v1"
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binfotypes "github.com/moby/buildkit/util/buildinfo/types"
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ocispecs "github.com/opencontainers/image-spec/specs-go/v1"
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"github.com/pkg/errors"
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)
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func PrintManifestList(dt []byte, desc ocispec.Descriptor, refstr string, out io.Writer) error {
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ref, err := parseRef(refstr)
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const defaultPfx = " "
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type Printer struct {
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ctx context.Context
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resolver *Resolver
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name string
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format string
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raw []byte
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ref reference.Named
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manifest ocispecs.Descriptor
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index ocispecs.Index
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image ocispecs.Image
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binfo binfotypes.BuildInfo
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}
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func NewPrinter(ctx context.Context, opt Opt, name string, format string) (*Printer, error) {
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resolver := New(opt)
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ref, err := parseRef(name)
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if err != nil {
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return nil, err
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}
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dt, manifest, err := resolver.Get(ctx, name)
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if err != nil {
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return nil, err
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}
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var index ocispecs.Index
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if err = json.Unmarshal(dt, &index); err != nil {
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return nil, err
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}
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_, dtcic, err := resolver.ImageConfig(ctx, name)
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if err != nil {
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return nil, err
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}
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var image ocispecs.Image
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if err = json.Unmarshal(dtcic, &image); err != nil {
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return nil, err
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}
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var binfo binfotypes.BuildInfo
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if len(dtcic) > 0 {
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var biconfig binfotypes.ImageConfig
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if err := json.Unmarshal(dtcic, &biconfig); err != nil {
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return nil, errors.Wrap(err, "failed to unmarshal image config")
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}
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if len(biconfig.BuildInfo) > 0 {
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bidec, err := base64.StdEncoding.DecodeString(biconfig.BuildInfo)
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if err != nil {
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return nil, errors.Wrap(err, "failed to decode build info")
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}
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if err = json.Unmarshal(bidec, &binfo); err != nil {
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return nil, errors.Wrap(err, "failed to unmarshal build info")
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}
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}
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}
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return &Printer{
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ctx: ctx,
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resolver: resolver,
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name: name,
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format: format,
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raw: dt,
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ref: ref,
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manifest: manifest,
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index: index,
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image: image,
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binfo: binfo,
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}, nil
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}
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func (p *Printer) Print(raw bool, out io.Writer) error {
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if raw {
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_, err := fmt.Fprintf(out, "%s", p.raw) // avoid newline to keep digest
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return err
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}
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tpl, err := template.New("").Funcs(template.FuncMap{
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"json": func(v interface{}) string {
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b, _ := json.MarshalIndent(v, "", " ")
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return string(b)
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},
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}).Parse(p.format)
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if err != nil {
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return err
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}
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var mfst ocispec.Index
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if err := json.Unmarshal(dt, &mfst); err != nil {
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return err
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format := tpl.Root.String()
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var manifest interface{}
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switch p.manifest.MediaType {
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case images.MediaTypeDockerSchema2Manifest, ocispecs.MediaTypeImageManifest:
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manifest = p.manifest
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case images.MediaTypeDockerSchema2ManifestList, ocispecs.MediaTypeImageIndex:
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manifest = p.index
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}
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v := struct {
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Name string `json:"name,omitempty"`
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Manifest interface{} `json:"manifest,omitempty"`
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Config ocispecs.Image `json:"config,omitempty"`
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BuildInfo binfotypes.BuildInfo `json:"buildinfo,omitempty"`
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}{
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Name: p.name,
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Manifest: manifest,
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Config: p.image,
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BuildInfo: p.binfo,
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}
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switch {
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case strings.HasPrefix(format, "{{.Manifest"), strings.HasPrefix(format, "{{.Config"), strings.HasPrefix(format, "{{.BuildInfo"):
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w := tabwriter.NewWriter(out, 0, 0, 1, ' ', 0)
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_, _ = fmt.Fprintf(w, "Name:\t%s\n", p.ref.String())
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_ = w.Flush()
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if strings.HasPrefix(format, "{{.Manifest") {
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_, _ = fmt.Fprintf(w, "MediaType:\t%s\n", p.manifest.MediaType)
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_, _ = fmt.Fprintf(w, "Digest:\t%s\n", p.manifest.Digest)
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_ = w.Flush()
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switch p.manifest.MediaType {
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case images.MediaTypeDockerSchema2ManifestList, ocispecs.MediaTypeImageIndex:
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_ = p.printManifestList(out)
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}
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} else if strings.HasPrefix(format, "{{.Config") {
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// TODO: print formatted config
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} else if strings.HasPrefix(format, "{{.BuildInfo") {
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_ = p.printBuildInfo(p.binfo, "", out)
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}
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default:
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return tpl.Execute(out, v)
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}
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return nil
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}
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func (p *Printer) printManifestList(out io.Writer) error {
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w := tabwriter.NewWriter(out, 0, 0, 1, ' ', 0)
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fmt.Fprintf(w, "Name:\t%s\n", ref.String())
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fmt.Fprintf(w, "MediaType:\t%s\n", desc.MediaType)
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fmt.Fprintf(w, "Digest:\t%s\n", desc.Digest)
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fmt.Fprintf(w, "\t\n")
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fmt.Fprintf(w, "Manifests:\t\n")
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w.Flush()
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pfx := " "
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_, _ = fmt.Fprintf(w, "\t\n")
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_, _ = fmt.Fprintf(w, "Manifests:\t\n")
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_ = w.Flush()
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w = tabwriter.NewWriter(os.Stdout, 0, 0, 1, ' ', 0)
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for i, m := range mfst.Manifests {
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for i, m := range p.index.Manifests {
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if i != 0 {
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fmt.Fprintf(w, "\t\n")
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_, _ = fmt.Fprintf(w, "\t\n")
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}
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cr, err := reference.WithDigest(ref, m.Digest)
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cr, err := reference.WithDigest(p.ref, m.Digest)
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if err != nil {
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return err
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}
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fmt.Fprintf(w, "%sName:\t%s\n", pfx, cr.String())
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fmt.Fprintf(w, "%sMediaType:\t%s\n", pfx, m.MediaType)
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_, _ = fmt.Fprintf(w, "%sName:\t%s\n", defaultPfx, cr.String())
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_, _ = fmt.Fprintf(w, "%sMediaType:\t%s\n", defaultPfx, m.MediaType)
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if p := m.Platform; p != nil {
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fmt.Fprintf(w, "%sPlatform:\t%s\n", pfx, platforms.Format(*p))
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_, _ = fmt.Fprintf(w, "%sPlatform:\t%s\n", defaultPfx, platforms.Format(*p))
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if p.OSVersion != "" {
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fmt.Fprintf(w, "%sOSVersion:\t%s\n", pfx, p.OSVersion)
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_, _ = fmt.Fprintf(w, "%sOSVersion:\t%s\n", defaultPfx, p.OSVersion)
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}
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if len(p.OSFeatures) > 0 {
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fmt.Fprintf(w, "%sOSFeatures:\t%s\n", pfx, strings.Join(p.OSFeatures, ", "))
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_, _ = fmt.Fprintf(w, "%sOSFeatures:\t%s\n", defaultPfx, strings.Join(p.OSFeatures, ", "))
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}
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if len(m.URLs) > 0 {
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fmt.Fprintf(w, "%sURLs:\t%s\n", pfx, strings.Join(m.URLs, ", "))
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_, _ = fmt.Fprintf(w, "%sURLs:\t%s\n", defaultPfx, strings.Join(m.URLs, ", "))
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}
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if len(m.Annotations) > 0 {
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w.Flush()
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_ = w.Flush()
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w2 := tabwriter.NewWriter(os.Stdout, 0, 0, 1, ' ', 0)
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pfx2 := pfx + " "
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for k, v := range m.Annotations {
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fmt.Fprintf(w2, "%s%s:\t%s\n", pfx2, k, v)
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_, _ = fmt.Fprintf(w2, "%s%s:\t%s\n", defaultPfx+defaultPfx, k, v)
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}
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w2.Flush()
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_ = w2.Flush()
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}
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}
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}
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return w.Flush()
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}
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func (p *Printer) printBuildInfo(bi binfotypes.BuildInfo, pfx string, out io.Writer) error {
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w := tabwriter.NewWriter(out, 0, 0, 1, ' ', 0)
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_, _ = fmt.Fprintf(w, "%sFrontend:\t%s\n", pfx, bi.Frontend)
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if len(bi.Attrs) > 0 {
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_, _ = fmt.Fprintf(w, "%sAttrs:\t\n", pfx)
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_ = w.Flush()
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for k, v := range bi.Attrs {
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_, _ = fmt.Fprintf(w, "%s%s:\t%s\n", pfx+defaultPfx, k, *v)
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}
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}
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if len(bi.Sources) > 0 {
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_, _ = fmt.Fprintf(w, "%sSources:\t\n", pfx)
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_ = w.Flush()
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for i, v := range bi.Sources {
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if i != 0 {
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_, _ = fmt.Fprintf(w, "\t\n")
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}
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_, _ = fmt.Fprintf(w, "%sType:\t%s\n", pfx+defaultPfx, v.Type)
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_, _ = fmt.Fprintf(w, "%sRef:\t%s\n", pfx+defaultPfx, v.Ref)
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_, _ = fmt.Fprintf(w, "%sPin:\t%s\n", pfx+defaultPfx, v.Pin)
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}
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}
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if len(bi.Deps) > 0 {
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_, _ = fmt.Fprintf(w, "%sDeps:\t\n", pfx)
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_ = w.Flush()
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firstPass := true
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for k, v := range bi.Deps {
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if !firstPass {
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_, _ = fmt.Fprintf(w, "\t\n")
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}
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_, _ = fmt.Fprintf(w, "%sName:\t%s\n", pfx+defaultPfx, k)
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_ = w.Flush()
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_ = p.printBuildInfo(v, pfx+defaultPfx, out)
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firstPass = false
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}
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}
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return w.Flush()
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}
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