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package images
import (
"context"
"fmt"
"os"
"text/tabwriter"
"text/template"
"github.com/containers/libpod/cmd/podmanV2/registry"
"github.com/containers/libpod/cmd/podmanV2/report"
"github.com/containers/libpod/pkg/domain/entities"
"github.com/pkg/errors"
"github.com/spf13/cobra"
)
var (
long = `Displays the history of an image.
The information can be printed out in an easy to read, or user specified format, and can be truncated.`
// podman _history_
historyCmd = &cobra.Command{
Use: "history [flags] IMAGE",
Short: "Show history of a specified image",
Long: long,
Example: "podman history quay.io/fedora/fedora",
Args: cobra.ExactArgs(1),
PersistentPreRunE: preRunE,
RunE: history,
}
)
var cmdFlags = struct {
Human bool
NoTrunc bool
Quiet bool
Format string
}{}
func init() {
registry.Commands = append(registry.Commands, registry.CliCommand{
Mode: []entities.EngineMode{entities.ABIMode, entities.TunnelMode},
Command: historyCmd,
})
historyCmd.SetHelpTemplate(registry.HelpTemplate())
historyCmd.SetUsageTemplate(registry.UsageTemplate())
flags := historyCmd.Flags()
flags.StringVar(&cmdFlags.Format, "format", "", "Change the output to JSON or a Go template")
flags.BoolVarP(&cmdFlags.Human, "human", "H", true, "Display sizes and dates in human readable format")
flags.BoolVar(&cmdFlags.NoTrunc, "no-trunc", false, "Do not truncate the output")
flags.BoolVar(&cmdFlags.NoTrunc, "notruncate", false, "Do not truncate the output")
flags.BoolVarP(&cmdFlags.Quiet, "quiet", "q", false, "Display the numeric IDs only")
}
func history(cmd *cobra.Command, args []string) error {
results, err := registry.ImageEngine().History(context.Background(), args[0], entities.ImageHistoryOptions{})
if err != nil {
return err
}
row := "{{slice $x.ID 0 12}}\t{{toRFC3339 $x.Created}}\t{{ellipsis $x.CreatedBy 45}}\t{{$x.Size}}\t{{$x.Comment}}\n"
if cmdFlags.Human {
row = "{{slice $x.ID 0 12}}\t{{toHumanDuration $x.Created}}\t{{ellipsis $x.CreatedBy 45}}\t{{toHumanSize $x.Size}}\t{{$x.Comment}}\n"
}
format := "{{range $y, $x := . }}" + row + "{{end}}"
tmpl := template.Must(template.New("report").Funcs(report.PodmanTemplateFuncs()).Parse(format))
w := tabwriter.NewWriter(os.Stdout, 8, 2, 2, ' ', 0)
_, _ = w.Write(report.ReportHeader("id", "created", "created by", "size", "comment"))
err = tmpl.Execute(w, results.Layers)
if err != nil {
fmt.Fprintln(os.Stderr, errors.Wrapf(err, "Failed to print report"))
}
w.Flush()
return nil
}
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