| package client |
| |
| import ( |
| "encoding/json" |
| "fmt" |
| "text/tabwriter" |
| "time" |
| |
| "github.com/docker/docker/api/types" |
| Cli "github.com/docker/docker/cli" |
| flag "github.com/docker/docker/pkg/mflag" |
| "github.com/docker/docker/pkg/stringid" |
| "github.com/docker/docker/pkg/stringutils" |
| "github.com/docker/docker/pkg/units" |
| ) |
| |
| // CmdHistory shows the history of an image. |
| // |
| // Usage: docker history [OPTIONS] IMAGE |
| func (cli *DockerCli) CmdHistory(args ...string) error { |
| cmd := Cli.Subcmd("history", []string{"IMAGE"}, "Show the history of an image", true) |
| human := cmd.Bool([]string{"H", "-human"}, true, "Print sizes and dates in human readable format") |
| quiet := cmd.Bool([]string{"q", "-quiet"}, false, "Only show numeric IDs") |
| noTrunc := cmd.Bool([]string{"#notrunc", "-no-trunc"}, false, "Don't truncate output") |
| cmd.Require(flag.Exact, 1) |
| |
| cmd.ParseFlags(args, true) |
| |
| serverResp, err := cli.call("GET", "/images/"+cmd.Arg(0)+"/history", nil, nil) |
| if err != nil { |
| return err |
| } |
| |
| defer serverResp.body.Close() |
| |
| history := []types.ImageHistory{} |
| if err := json.NewDecoder(serverResp.body).Decode(&history); err != nil { |
| return err |
| } |
| |
| w := tabwriter.NewWriter(cli.out, 20, 1, 3, ' ', 0) |
| if !*quiet { |
| fmt.Fprintln(w, "IMAGE\tCREATED\tCREATED BY\tSIZE\tCOMMENT") |
| } |
| |
| for _, entry := range history { |
| if *noTrunc { |
| fmt.Fprintf(w, entry.ID) |
| } else { |
| fmt.Fprintf(w, stringid.TruncateID(entry.ID)) |
| } |
| if !*quiet { |
| if *human { |
| fmt.Fprintf(w, "\t%s ago\t", units.HumanDuration(time.Now().UTC().Sub(time.Unix(entry.Created, 0)))) |
| } else { |
| fmt.Fprintf(w, "\t%s\t", time.Unix(entry.Created, 0).Format(time.RFC3339)) |
| } |
| |
| if *noTrunc { |
| fmt.Fprintf(w, "%s\t", entry.CreatedBy) |
| } else { |
| fmt.Fprintf(w, "%s\t", stringutils.Truncate(entry.CreatedBy, 45)) |
| } |
| |
| if *human { |
| fmt.Fprintf(w, "%s\t", units.HumanSize(float64(entry.Size))) |
| } else { |
| fmt.Fprintf(w, "%d\t", entry.Size) |
| } |
| |
| fmt.Fprintf(w, "%s", entry.Comment) |
| } |
| fmt.Fprintf(w, "\n") |
| } |
| w.Flush() |
| return nil |
| } |