91 lines
1.6 KiB
Go
91 lines
1.6 KiB
Go
package main
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import (
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"encoding/json"
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"flag"
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"fmt"
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"io"
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"os"
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"os/exec"
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"strings"
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"github.com/emojisum/emojisum/emoji"
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)
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var (
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flJson = flag.Bool("json", false, "output json (no emoji)")
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formatOutput = `
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{
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"repo": "{{.Repository}}",
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"id": "{{.ID}}",
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"digest": "{{.Digest}}",
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"tag": "{{.Tag}}",
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"createdSince": "{{.CreatedSince}}",
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"createdAt": "{{.CreatedAt}}",
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"size": "{{.Size}}"
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}
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`
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)
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func main() {
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flag.Parse()
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args := []string{"images", "--digests", fmt.Sprintf("--format=%s", formatOutput)}
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args = append(args, flag.Args()...)
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cmd := exec.Command("docker", args...)
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if !*flJson {
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pR, pW := io.Pipe()
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cmd.Stdout = pW
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jR := json.NewDecoder(pR)
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go func() {
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for {
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it := ImageThing{}
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err := jR.Decode(&it)
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if err != nil {
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fmt.Fprintln(os.Stderr, err)
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os.Exit(1)
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}
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var digest, d, h string
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var name string
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if it.Tag == "" {
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name = it.Repo
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} else {
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name = fmt.Sprintf("%s:%s", it.Repo, it.Tag)
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}
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if strings.Contains(it.Digest, ":") {
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chunks := strings.SplitN(it.Digest, ":", 2)
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h = chunks[0]
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d, err = emoji.FromHexString(chunks[1])
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if err != nil {
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fmt.Fprintln(os.Stderr, err)
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os.Exit(1)
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}
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digest = fmt.Sprintf("%s:%s", h, d)
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} else {
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digest = "<none>"
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}
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fmt.Printf("%s (id %s) %s\n", name, it.ID, digest)
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}
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}()
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} else {
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cmd.Stdout = os.Stdout
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}
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cmd.Stdin = os.Stdin
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cmd.Stderr = os.Stderr
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cmd.Run()
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}
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type ImageThing struct {
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Repo string
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ID string
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Digest string
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Tag string
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CreateSince string
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CreateAt string
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Size string
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}
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