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moby--moby/api/client/history.go
Antonio Murdaca c30a55f14d Refactor utils/utils, fixes #11923
Signed-off-by: Antonio Murdaca <me@runcom.ninja>
2015-04-14 01:37:36 +02:00

63 lines
1.6 KiB
Go

package client
import (
"encoding/json"
"fmt"
"text/tabwriter"
"time"
"github.com/docker/docker/api/types"
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", "IMAGE", "Show the history of an image", true)
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)
rdr, _, err := cli.call("GET", "/images/"+cmd.Arg(0)+"/history", nil, nil)
if err != nil {
return err
}
history := []types.ImageHistory{}
err = json.NewDecoder(rdr).Decode(&history)
if 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 {
fmt.Fprintf(w, "\t%s ago\t", units.HumanDuration(time.Now().UTC().Sub(time.Unix(entry.Created, 0))))
if *noTrunc {
fmt.Fprintf(w, "%s\t", entry.CreatedBy)
} else {
fmt.Fprintf(w, "%s\t", stringutils.Truncate(entry.CreatedBy, 45))
}
fmt.Fprintf(w, "%s\t", units.HumanSize(float64(entry.Size)))
fmt.Fprintf(w, "%s", entry.Comment)
}
fmt.Fprintf(w, "\n")
}
w.Flush()
return nil
}