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-rw-r--r--cmd/podman/containers/diff.go42
-rw-r--r--cmd/podman/diff.go42
-rw-r--r--cmd/podman/diff/diff.go79
-rw-r--r--cmd/podman/images/diff.go40
4 files changed, 112 insertions, 91 deletions
diff --git a/cmd/podman/containers/diff.go b/cmd/podman/containers/diff.go
index 0eee85825..7463e96ad 100644
--- a/cmd/podman/containers/diff.go
+++ b/cmd/podman/containers/diff.go
@@ -1,10 +1,11 @@
package containers
import (
- "github.com/containers/common/pkg/report"
"github.com/containers/podman/v3/cmd/podman/common"
+ "github.com/containers/podman/v3/cmd/podman/diff"
"github.com/containers/podman/v3/cmd/podman/registry"
"github.com/containers/podman/v3/cmd/podman/validate"
+ "github.com/containers/podman/v3/libpod/define"
"github.com/containers/podman/v3/pkg/domain/entities"
"github.com/pkg/errors"
"github.com/spf13/cobra"
@@ -13,11 +14,11 @@ import (
var (
// podman container _diff_
diffCmd = &cobra.Command{
- Use: "diff [options] CONTAINER",
- Args: validate.IDOrLatestArgs,
+ Use: "diff [options] CONTAINER [CONTAINER]",
+ Args: diff.ValidateContainerDiffArgs,
Short: "Inspect changes to the container's file systems",
- Long: `Displays changes to the container filesystem's'. The container will be compared to its parent layer.`,
- RunE: diff,
+ Long: `Displays changes to the container filesystem's'. The container will be compared to its parent layer or the second argument when given.`,
+ RunE: diffRun,
ValidArgsFunction: common.AutocompleteContainers,
Example: `podman container diff myCtr
podman container diff -l --format json myCtr`,
@@ -33,41 +34,22 @@ func init() {
diffOpts = &entities.DiffOptions{}
flags := diffCmd.Flags()
+
+ // FIXME: Why does this exists? It is not used anywhere.
flags.BoolVar(&diffOpts.Archive, "archive", true, "Save the diff as a tar archive")
_ = flags.MarkHidden("archive")
formatFlagName := "format"
- flags.StringVar(&diffOpts.Format, formatFlagName, "", "Change the output format")
+ flags.StringVar(&diffOpts.Format, formatFlagName, "", "Change the output format (json)")
_ = diffCmd.RegisterFlagCompletionFunc(formatFlagName, common.AutocompleteFormat(nil))
validate.AddLatestFlag(diffCmd, &diffOpts.Latest)
}
-func diff(cmd *cobra.Command, args []string) error {
+func diffRun(cmd *cobra.Command, args []string) error {
if len(args) == 0 && !diffOpts.Latest {
return errors.New("container must be specified: podman container diff [options [...]] ID-NAME")
}
-
- var id string
- if len(args) > 0 {
- id = args[0]
- }
- results, err := registry.ContainerEngine().ContainerDiff(registry.GetContext(), id, *diffOpts)
- if err != nil {
- return err
- }
-
- switch {
- case report.IsJSON(diffOpts.Format):
- return common.ChangesToJSON(results)
- case diffOpts.Format == "":
- return common.ChangesToTable(results)
- default:
- return errors.New("only supported value for '--format' is 'json'")
- }
-}
-
-func Diff(cmd *cobra.Command, args []string, options entities.DiffOptions) error {
- diffOpts = &options
- return diff(cmd, args)
+ diffOpts.Type = define.DiffContainer
+ return diff.Diff(cmd, args, *diffOpts)
}
diff --git a/cmd/podman/diff.go b/cmd/podman/diff.go
index e2a3cd727..c592b6a22 100644
--- a/cmd/podman/diff.go
+++ b/cmd/podman/diff.go
@@ -1,13 +1,11 @@
package main
import (
- "fmt"
-
"github.com/containers/podman/v3/cmd/podman/common"
- "github.com/containers/podman/v3/cmd/podman/containers"
- "github.com/containers/podman/v3/cmd/podman/images"
+ "github.com/containers/podman/v3/cmd/podman/diff"
"github.com/containers/podman/v3/cmd/podman/registry"
"github.com/containers/podman/v3/cmd/podman/validate"
+ "github.com/containers/podman/v3/libpod/define"
"github.com/containers/podman/v3/pkg/domain/entities"
"github.com/spf13/cobra"
)
@@ -16,13 +14,13 @@ import (
var (
// Command: podman _diff_ Object_ID
- diffDescription = `Displays changes on a container or image's filesystem. The container or image will be compared to its parent layer.`
+ diffDescription = `Displays changes on a container or image's filesystem. The container or image will be compared to its parent layer or the second argument when given.`
diffCmd = &cobra.Command{
- Use: "diff [options] {CONTAINER|IMAGE}",
- Args: validate.IDOrLatestArgs,
+ Use: "diff [options] {CONTAINER|IMAGE} [{CONTAINER|IMAGE}]",
+ Args: diff.ValidateContainerDiffArgs,
Short: "Display the changes to the object's file system",
Long: diffDescription,
- RunE: diff,
+ RunE: diffRun,
ValidArgsFunction: common.AutocompleteContainersAndImages,
Example: `podman diff imageID
podman diff ctrID
@@ -37,36 +35,18 @@ func init() {
Command: diffCmd,
})
flags := diffCmd.Flags()
+ // FIXME: Why does this exists? It is not used anywhere.
flags.BoolVar(&diffOpts.Archive, "archive", true, "Save the diff as a tar archive")
_ = flags.MarkHidden("archive")
formatFlagName := "format"
- flags.StringVar(&diffOpts.Format, formatFlagName, "", "Change the output format")
+ flags.StringVar(&diffOpts.Format, formatFlagName, "", "Change the output format (json)")
_ = diffCmd.RegisterFlagCompletionFunc(formatFlagName, common.AutocompleteFormat(nil))
validate.AddLatestFlag(diffCmd, &diffOpts.Latest)
}
-func diff(cmd *cobra.Command, args []string) error {
- // Latest implies looking for a container
- if diffOpts.Latest {
- return containers.Diff(cmd, args, diffOpts)
- }
-
- options := entities.ContainerExistsOptions{
- External: true,
- }
- if found, err := registry.ContainerEngine().ContainerExists(registry.GetContext(), args[0], options); err != nil {
- return err
- } else if found.Value {
- return containers.Diff(cmd, args, diffOpts)
- }
-
- if found, err := registry.ImageEngine().Exists(registry.GetContext(), args[0]); err != nil {
- return err
- } else if found.Value {
- return images.Diff(cmd, args, diffOpts)
- }
-
- return fmt.Errorf("%s not found on system", args[0])
+func diffRun(cmd *cobra.Command, args []string) error {
+ diffOpts.Type = define.DiffAll
+ return diff.Diff(cmd, args, diffOpts)
}
diff --git a/cmd/podman/diff/diff.go b/cmd/podman/diff/diff.go
new file mode 100644
index 000000000..81bbb6c43
--- /dev/null
+++ b/cmd/podman/diff/diff.go
@@ -0,0 +1,79 @@
+package diff
+
+import (
+ "encoding/json"
+ "fmt"
+ "os"
+
+ "github.com/containers/common/pkg/report"
+ "github.com/containers/podman/v3/cmd/podman/registry"
+ "github.com/containers/podman/v3/pkg/domain/entities"
+ "github.com/docker/docker/pkg/archive"
+ "github.com/pkg/errors"
+ "github.com/spf13/cobra"
+)
+
+func Diff(cmd *cobra.Command, args []string, options entities.DiffOptions) error {
+ results, err := registry.ContainerEngine().Diff(registry.GetContext(), args, options)
+ if err != nil {
+ return err
+ }
+
+ switch {
+ case report.IsJSON(options.Format):
+ return changesToJSON(results)
+ case options.Format == "":
+ return changesToTable(results)
+ default:
+ return errors.New("only supported value for '--format' is 'json'")
+ }
+}
+
+type ChangesReportJSON struct {
+ Changed []string `json:"changed,omitempty"`
+ Added []string `json:"added,omitempty"`
+ Deleted []string `json:"deleted,omitempty"`
+}
+
+func changesToJSON(diffs *entities.DiffReport) error {
+ body := ChangesReportJSON{}
+ for _, row := range diffs.Changes {
+ switch row.Kind {
+ case archive.ChangeAdd:
+ body.Added = append(body.Added, row.Path)
+ case archive.ChangeDelete:
+ body.Deleted = append(body.Deleted, row.Path)
+ case archive.ChangeModify:
+ body.Changed = append(body.Changed, row.Path)
+ default:
+ return errors.Errorf("output kind %q not recognized", row.Kind)
+ }
+ }
+
+ // Pull in configured json library
+ enc := json.NewEncoder(os.Stdout)
+ enc.SetIndent("", " ")
+ return enc.Encode(body)
+}
+
+func changesToTable(diffs *entities.DiffReport) error {
+ for _, row := range diffs.Changes {
+ fmt.Fprintln(os.Stdout, row.String())
+ }
+ return nil
+}
+
+// IDOrLatestArgs used to validate a nameOrId was provided or the "--latest" flag
+func ValidateContainerDiffArgs(cmd *cobra.Command, args []string) error {
+ given, _ := cmd.Flags().GetBool("latest")
+ if len(args) > 0 && !given {
+ return cobra.RangeArgs(1, 2)(cmd, args)
+ }
+ if len(args) > 0 && given {
+ return errors.New("--latest and containers cannot be used together")
+ }
+ if len(args) == 0 && !given {
+ return errors.Errorf("%q requires a name, id, or the \"--latest\" flag", cmd.CommandPath())
+ }
+ return nil
+}
diff --git a/cmd/podman/images/diff.go b/cmd/podman/images/diff.go
index 2e883d7ae..825aab362 100644
--- a/cmd/podman/images/diff.go
+++ b/cmd/podman/images/diff.go
@@ -1,11 +1,11 @@
package images
import (
- "github.com/containers/common/pkg/report"
"github.com/containers/podman/v3/cmd/podman/common"
+ "github.com/containers/podman/v3/cmd/podman/diff"
"github.com/containers/podman/v3/cmd/podman/registry"
+ "github.com/containers/podman/v3/libpod/define"
"github.com/containers/podman/v3/pkg/domain/entities"
- "github.com/pkg/errors"
"github.com/spf13/cobra"
"github.com/spf13/pflag"
)
@@ -13,11 +13,11 @@ import (
var (
// podman container _inspect_
diffCmd = &cobra.Command{
- Use: "diff [options] IMAGE",
- Args: cobra.ExactArgs(1),
+ Use: "diff [options] IMAGE [IMAGE]",
+ Args: cobra.RangeArgs(1, 2),
Short: "Inspect changes to the image's file systems",
- Long: `Displays changes to the image's filesystem. The image will be compared to its parent layer.`,
- RunE: diff,
+ Long: `Displays changes to the image's filesystem. The image will be compared to its parent layer or the second argument when given.`,
+ RunE: diffRun,
ValidArgsFunction: common.AutocompleteImages,
Example: `podman image diff myImage
podman image diff --format json redis:alpine`,
@@ -39,31 +39,11 @@ func diffFlags(flags *pflag.FlagSet) {
_ = flags.MarkDeprecated("archive", "Provided for backwards compatibility, has no impact on output.")
formatFlagName := "format"
- flags.StringVar(&diffOpts.Format, formatFlagName, "", "Change the output format")
+ flags.StringVar(&diffOpts.Format, formatFlagName, "", "Change the output format (json)")
_ = diffCmd.RegisterFlagCompletionFunc(formatFlagName, common.AutocompleteFormat(nil))
}
-func diff(cmd *cobra.Command, args []string) error {
- if diffOpts.Latest {
- return errors.New("image diff does not support --latest")
- }
-
- results, err := registry.ImageEngine().Diff(registry.GetContext(), args[0], *diffOpts)
- if err != nil {
- return err
- }
-
- switch {
- case report.IsJSON(diffOpts.Format):
- return common.ChangesToJSON(results)
- case diffOpts.Format == "":
- return common.ChangesToTable(results)
- default:
- return errors.New("only supported value for '--format' is 'json'")
- }
-}
-
-func Diff(cmd *cobra.Command, args []string, options entities.DiffOptions) error {
- diffOpts = &options
- return diff(cmd, args)
+func diffRun(cmd *cobra.Command, args []string) error {
+ diffOpts.Type = define.DiffImage
+ return diff.Diff(cmd, args, *diffOpts)
}
generated by cgit v1.2.3-54-g00ecf (git 2.39.0) at 2024-12-27 06:02:39 +0000