diff options
Diffstat (limited to 'cmd/podman/history.go')
| -rw-r--r-- | cmd/podman/history.go | 199 |
1 files changed, 0 insertions, 199 deletions
diff --git a/cmd/podman/history.go b/cmd/podman/history.go deleted file mode 100644 index da6a3f608..000000000 --- a/cmd/podman/history.go +++ /dev/null @@ -1,199 +0,0 @@ -package main - -import ( - "reflect" - "strconv" - "strings" - "time" - - "github.com/containers/buildah/pkg/formats" - "github.com/containers/libpod/cmd/podman/cliconfig" - "github.com/containers/libpod/libpod/image" - "github.com/containers/libpod/pkg/adapter" - "github.com/docker/go-units" - "github.com/pkg/errors" - "github.com/spf13/cobra" -) - -const createdByTruncLength = 45 - -// historyTemplateParams stores info about each layer -type historyTemplateParams struct { - ID string - Created string - CreatedBy string - Size string - Comment string -} - -// historyOptions stores cli flag values -type historyOptions struct { - human bool - noTrunc bool - quiet bool - format string -} - -var ( - historyCommand cliconfig.HistoryValues - - historyDescription = `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.` - _historyCommand = &cobra.Command{ - Use: "history [flags] IMAGE", - Short: "Show history of a specified image", - Long: historyDescription, - RunE: func(cmd *cobra.Command, args []string) error { - historyCommand.InputArgs = args - historyCommand.GlobalFlags = MainGlobalOpts - historyCommand.Remote = remoteclient - return historyCmd(&historyCommand) - }, - } -) - -func init() { - historyCommand.Command = _historyCommand - historyCommand.SetHelpTemplate(HelpTemplate()) - historyCommand.SetUsageTemplate(UsageTemplate()) - flags := historyCommand.Flags() - flags.StringVar(&historyCommand.Format, "format", "", "Change the output to JSON or a Go template") - flags.BoolVarP(&historyCommand.Human, "human", "H", true, "Display sizes and dates in human readable format") - // notrucate needs to be added - flags.BoolVar(&historyCommand.NoTrunc, "no-trunc", false, "Do not truncate the output") - flags.BoolVarP(&historyCommand.Quiet, "quiet", "q", false, "Display the numeric IDs only") - -} - -func historyCmd(c *cliconfig.HistoryValues) error { - runtime, err := adapter.GetRuntime(getContext(), &c.PodmanCommand) - if err != nil { - return errors.Wrapf(err, "could not get runtime") - } - defer runtime.DeferredShutdown(false) - - format := genHistoryFormat(c.Format, c.Quiet) - - args := c.InputArgs - if len(args) == 0 { - return errors.Errorf("an image name must be specified") - } - if len(args) > 1 { - return errors.Errorf("podman history takes at most 1 argument") - } - - image, err := runtime.NewImageFromLocal(args[0]) - if err != nil { - return err - } - opts := historyOptions{ - human: c.Human, - noTrunc: c.NoTrunc, - quiet: c.Quiet, - format: format, - } - - history, err := image.History(getContext()) - if err != nil { - return errors.Wrapf(err, "error getting history of image %q", image.InputName) - } - - return generateHistoryOutput(history, opts) -} - -func genHistoryFormat(format string, quiet bool) string { - if format != "" { - // "\t" from the command line is not being recognized as a tab - // replacing the string "\t" to a tab character if the user passes in "\t" - return strings.Replace(format, `\t`, "\t", -1) - } - if quiet { - return formats.IDString - } - return "table {{.ID}}\t{{.Created}}\t{{.CreatedBy}}\t{{.Size}}\t{{.Comment}}\t" -} - -// historyToGeneric makes an empty array of interfaces for output -func historyToGeneric(templParams []historyTemplateParams, jsonParams []*image.History) (genericParams []interface{}) { - if len(templParams) > 0 { - for _, v := range templParams { - genericParams = append(genericParams, interface{}(v)) - } - return - } - for _, v := range jsonParams { - genericParams = append(genericParams, interface{}(v)) - } - return -} - -// generate the header based on the template provided -func (h *historyTemplateParams) headerMap() map[string]string { - v := reflect.Indirect(reflect.ValueOf(h)) - values := make(map[string]string) - for h := 0; h < v.NumField(); h++ { - key := v.Type().Field(h).Name - value := key - values[key] = strings.ToUpper(splitCamelCase(value)) - } - return values -} - -// getHistorytemplateOutput gets the modified history information to be printed in human readable format -func getHistoryTemplateOutput(history []*image.History, opts historyOptions) []historyTemplateParams { - var ( - outputSize string - createdTime string - createdBy string - historyOutput []historyTemplateParams - ) - for _, hist := range history { - imageID := hist.ID - if !opts.noTrunc && imageID != "<missing>" { - imageID = shortID(imageID) - } - - if opts.human { - createdTime = units.HumanDuration(time.Since(*hist.Created)) + " ago" - outputSize = units.HumanSize(float64(hist.Size)) - } else { - createdTime = (hist.Created).Format(time.RFC3339) - outputSize = strconv.FormatInt(hist.Size, 10) - } - - createdBy = strings.Join(strings.Fields(hist.CreatedBy), " ") - if !opts.noTrunc && len(createdBy) > createdByTruncLength { - createdBy = createdBy[:createdByTruncLength-3] + "..." - } - - params := historyTemplateParams{ - ID: imageID, - Created: createdTime, - CreatedBy: createdBy, - Size: outputSize, - Comment: hist.Comment, - } - historyOutput = append(historyOutput, params) - } - return historyOutput -} - -// generateHistoryOutput generates the history based on the format given -func generateHistoryOutput(history []*image.History, opts historyOptions) error { - if len(history) == 0 { - return nil - } - - var out formats.Writer - - switch opts.format { - case formats.JSONString: - out = formats.JSONStructArray{Output: historyToGeneric([]historyTemplateParams{}, history)} - default: - historyOutput := getHistoryTemplateOutput(history, opts) - out = formats.StdoutTemplateArray{Output: historyToGeneric(historyOutput, []*image.History{}), Template: opts.format, Fields: historyOutput[0].headerMap()} - } - - return out.Out() -} |