mirror of
https://github.com/podman-container-tools/podman.git
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34de0feda5
The PodmanOptionsKey is never used anywhere so it is pointless to add this. Second having several functions to return the same context makes no sense so fold them all into one. Lastly create the context once and always return the same one instead of having to nil check each time. Signed-off-by: Paul Holzinger <pholzing@redhat.com>
93 lines
2.9 KiB
Go
93 lines
2.9 KiB
Go
package images
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import (
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"bufio"
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"fmt"
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"os"
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"strings"
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"github.com/containers/common/pkg/completion"
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"github.com/containers/podman/v5/cmd/podman/common"
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"github.com/containers/podman/v5/cmd/podman/parse"
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"github.com/containers/podman/v5/cmd/podman/registry"
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"github.com/containers/podman/v5/cmd/podman/utils"
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"github.com/containers/podman/v5/cmd/podman/validate"
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"github.com/containers/podman/v5/pkg/domain/entities"
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"github.com/spf13/cobra"
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)
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var (
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pruneDescription = `Removes dangling or unused images from local storage.`
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pruneCmd = &cobra.Command{
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Use: "prune [options]",
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Args: validate.NoArgs,
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Short: "Remove unused images",
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Long: pruneDescription,
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RunE: prune,
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ValidArgsFunction: completion.AutocompleteNone,
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Example: `podman image prune`,
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}
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pruneOpts = entities.ImagePruneOptions{}
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force bool
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filter = []string{}
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)
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func init() {
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registry.Commands = append(registry.Commands, registry.CliCommand{
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Command: pruneCmd,
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Parent: buildxCmd,
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})
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registry.Commands = append(registry.Commands, registry.CliCommand{
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Command: pruneCmd,
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Parent: imageCmd,
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})
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flags := pruneCmd.Flags()
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flags.BoolVarP(&pruneOpts.All, "all", "a", false, "Remove all images not in use by containers, not just dangling ones")
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flags.BoolVarP(&pruneOpts.BuildCache, "build-cache", "", false, "Remove persistent build cache created by --mount=type=cache")
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flags.BoolVarP(&pruneOpts.External, "external", "", false, "Remove images even when they are used by external containers (e.g., by build containers)")
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flags.BoolVarP(&force, "force", "f", false, "Do not prompt for confirmation")
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filterFlagName := "filter"
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flags.StringArrayVar(&filter, filterFlagName, []string{}, "Provide filter values (e.g. 'label=<key>=<value>')")
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_ = pruneCmd.RegisterFlagCompletionFunc(filterFlagName, common.AutocompletePruneFilters)
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}
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func prune(cmd *cobra.Command, args []string) error {
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if !force {
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reader := bufio.NewReader(os.Stdin)
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fmt.Printf("%s", createPruneWarningMessage(pruneOpts))
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answer, err := reader.ReadString('\n')
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if err != nil {
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return err
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}
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if strings.ToLower(answer)[0] != 'y' {
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return nil
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}
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}
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filterMap, err := parse.FilterArgumentsIntoFilters(filter)
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if err != nil {
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return err
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}
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for k, v := range filterMap {
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for _, val := range v {
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pruneOpts.Filter = append(pruneOpts.Filter, fmt.Sprintf("%s=%s", k, val))
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}
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}
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results, err := registry.ImageEngine().Prune(registry.Context(), pruneOpts)
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if err != nil {
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return err
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}
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return utils.PrintImagePruneResults(results, false)
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}
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func createPruneWarningMessage(pruneOpts entities.ImagePruneOptions) string {
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question := "Are you sure you want to continue? [y/N] "
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if pruneOpts.All {
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return "WARNING! This command removes all images without at least one container associated with them.\n" + question
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}
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return "WARNING! This command removes all dangling images.\n" + question
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}
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