mirror of
https://github.com/moby/moby.git
synced 2022-11-09 12:21:53 -05:00
92 lines
2.3 KiB
Go
92 lines
2.3 KiB
Go
package client
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import (
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"bytes"
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"encoding/json"
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"fmt"
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"io"
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"strings"
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"text/template"
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flag "github.com/docker/docker/pkg/mflag"
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"github.com/docker/docker/utils"
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)
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// CmdInspect displays low-level information on one or more containers or images.
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//
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// Usage: docker inspect [OPTIONS] CONTAINER|IMAGE [CONTAINER|IMAGE...]
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func (cli *DockerCli) CmdInspect(args ...string) error {
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cmd := cli.Subcmd("inspect", "CONTAINER|IMAGE [CONTAINER|IMAGE...]", "Return low-level information on a container or image", true)
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tmplStr := cmd.String([]string{"f", "#format", "-format"}, "", "Format the output using the given go template")
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cmd.Require(flag.Min, 1)
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cmd.ParseFlags(args, true)
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var tmpl *template.Template
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if *tmplStr != "" {
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var err error
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if tmpl, err = template.New("").Funcs(funcMap).Parse(*tmplStr); err != nil {
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fmt.Fprintf(cli.err, "Template parsing error: %v\n", err)
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return &utils.StatusError{StatusCode: 64,
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Status: "Template parsing error: " + err.Error()}
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}
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}
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indented := new(bytes.Buffer)
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indented.WriteByte('[')
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status := 0
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for _, name := range cmd.Args() {
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obj, _, err := readBody(cli.call("GET", "/containers/"+name+"/json", nil, nil))
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if err != nil {
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obj, _, err = readBody(cli.call("GET", "/images/"+name+"/json", nil, nil))
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if err != nil {
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if strings.Contains(err.Error(), "No such") {
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fmt.Fprintf(cli.err, "Error: No such image or container: %s\n", name)
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} else {
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fmt.Fprintf(cli.err, "%s", err)
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}
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status = 1
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continue
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}
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}
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if tmpl == nil {
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if err = json.Indent(indented, obj, "", " "); err != nil {
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fmt.Fprintf(cli.err, "%s\n", err)
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status = 1
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continue
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}
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} else {
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// Has template, will render
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var value interface{}
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if err := json.Unmarshal(obj, &value); err != nil {
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fmt.Fprintf(cli.err, "%s\n", err)
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status = 1
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continue
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}
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if err := tmpl.Execute(cli.out, value); err != nil {
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return err
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}
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cli.out.Write([]byte{'\n'})
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}
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indented.WriteString(",")
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}
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if indented.Len() > 1 {
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// Remove trailing ','
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indented.Truncate(indented.Len() - 1)
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}
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indented.WriteString("]\n")
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if tmpl == nil {
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if _, err := io.Copy(cli.out, indented); err != nil {
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return err
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}
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}
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if status != 0 {
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return &utils.StatusError{StatusCode: status}
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}
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return nil
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}
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