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history.go
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history.go
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package image
import (
"context"
"github.com/docker/cli/cli"
"github.com/docker/cli/cli/command"
"github.com/docker/cli/cli/command/formatter"
"github.com/spf13/cobra"
)
type historyOptions struct {
image string
human bool
quiet bool
noTrunc bool
format string
}
// NewHistoryCommand creates a new `docker history` command
func NewHistoryCommand(dockerCli command.Cli) *cobra.Command {
var opts historyOptions
cmd := &cobra.Command{
Use: "history [OPTIONS] IMAGE",
Short: "Show the history of an image",
Args: cli.ExactArgs(1),
RunE: func(cmd *cobra.Command, args []string) error {
opts.image = args[0]
return runHistory(dockerCli, opts)
},
}
flags := cmd.Flags()
flags.BoolVarP(&opts.human, "human", "H", true, "Print sizes and dates in human readable format")
flags.BoolVarP(&opts.quiet, "quiet", "q", false, "Only show image IDs")
flags.BoolVar(&opts.noTrunc, "no-trunc", false, "Don't truncate output")
flags.StringVar(&opts.format, "format", "", "Pretty-print images using a Go template")
return cmd
}
func runHistory(dockerCli command.Cli, opts historyOptions) error {
ctx := context.Background()
history, err := dockerCli.Client().ImageHistory(ctx, opts.image)
if err != nil {
return err
}
format := opts.format
if len(format) == 0 {
format = formatter.TableFormatKey
}
historyCtx := formatter.Context{
Output: dockerCli.Out(),
Format: NewHistoryFormat(format, opts.quiet, opts.human),
Trunc: !opts.noTrunc,
}
return HistoryWrite(historyCtx, opts.human, history)
}