spiegel_podman/cmd/podman/images/exists.go
Jhon Honce 33944cefe7 [Techinal Debt] Cleanup ABI vs. Tunnel CLI commands
[NO TESTS NEEDED]

This commit cleans up two issues:
* Most commands support all EngineModes so default to that. Let
  outlayers declare their intent.
* Use cobra.Annotations to set supported EngineMode. This simplies
  instantiating commands as there is now one method to communicate a
  commands requirements rather than two.
* Combined aliased commands into one file
* Fixed aliased commands where Args field did not match
* Updated examples in README.md for writing commands
* Remove redundant flag DisableFlagsInUseLine in cobra.Command
  initialization.

Signed-off-by: Jhon Honce <jhonce@redhat.com>
2021-05-27 11:40:43 -07:00

38 lines
1,006 B
Go

package images
import (
"github.com/containers/podman/v3/cmd/podman/common"
"github.com/containers/podman/v3/cmd/podman/registry"
"github.com/spf13/cobra"
)
var (
existsCmd = &cobra.Command{
Use: "exists IMAGE",
Short: "Check if an image exists in local storage",
Long: `If the named image exists in local storage, podman image exists exits with 0, otherwise the exit code will be 1.`,
Args: cobra.ExactArgs(1),
RunE: exists,
ValidArgsFunction: common.AutocompleteImages,
Example: `podman image exists ID
podman image exists IMAGE && podman pull IMAGE`,
}
)
func init() {
registry.Commands = append(registry.Commands, registry.CliCommand{
Command: existsCmd,
Parent: imageCmd,
})
}
func exists(cmd *cobra.Command, args []string) error {
found, err := registry.ImageEngine().Exists(registry.GetContext(), args[0])
if err != nil {
return err
}
if !found.Value {
registry.SetExitCode(1)
}
return nil
}