80 lines
2.1 KiB
Go
80 lines
2.1 KiB
Go
package diff
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import (
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"encoding/json"
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"errors"
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"fmt"
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"os"
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"github.com/containers/common/pkg/report"
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"github.com/containers/podman/v5/cmd/podman/registry"
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"github.com/containers/podman/v5/pkg/domain/entities"
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"github.com/containers/storage/pkg/archive"
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"github.com/spf13/cobra"
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)
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func Diff(_ *cobra.Command, args []string, options entities.DiffOptions) error {
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results, err := registry.ContainerEngine().Diff(registry.GetContext(), args, options)
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if err != nil {
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return err
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}
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switch {
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case report.IsJSON(options.Format):
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return changesToJSON(results)
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case options.Format == "":
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return changesToTable(results)
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default:
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return errors.New("only supported value for '--format' is 'json'")
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}
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}
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type ChangesReportJSON struct {
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Changed []string `json:"changed,omitempty"`
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Added []string `json:"added,omitempty"`
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Deleted []string `json:"deleted,omitempty"`
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}
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func changesToJSON(diffs *entities.DiffReport) error {
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body := ChangesReportJSON{}
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for _, row := range diffs.Changes {
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switch row.Kind {
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case archive.ChangeAdd:
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body.Added = append(body.Added, row.Path)
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case archive.ChangeDelete:
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body.Deleted = append(body.Deleted, row.Path)
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case archive.ChangeModify:
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body.Changed = append(body.Changed, row.Path)
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default:
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return fmt.Errorf("output kind %q not recognized", row.Kind)
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}
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}
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// Pull in configured json library
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enc := json.NewEncoder(os.Stdout)
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enc.SetIndent("", " ")
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return enc.Encode(body)
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}
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func changesToTable(diffs *entities.DiffReport) error {
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for _, row := range diffs.Changes {
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fmt.Fprintln(os.Stdout, row.String())
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}
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return nil
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}
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// ValidateContainerDiffArgs used to validate a nameOrId was provided or the "--latest" flag
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func ValidateContainerDiffArgs(cmd *cobra.Command, args []string) error {
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given, _ := cmd.Flags().GetBool("latest")
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if len(args) > 0 && !given {
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return cobra.RangeArgs(1, 2)(cmd, args)
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}
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if len(args) > 0 && given {
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return errors.New("--latest and containers cannot be used together")
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}
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if len(args) == 0 && !given {
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return fmt.Errorf("%q requires a name, id, or the \"--latest\" flag", cmd.CommandPath())
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}
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return nil
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}
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