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-rw-r--r--cmd/podman/volumes/prune.go52
1 files changed, 46 insertions, 6 deletions
diff --git a/cmd/podman/volumes/prune.go b/cmd/podman/volumes/prune.go
index 0f3ba9ef6..39ad2735b 100644
--- a/cmd/podman/volumes/prune.go
+++ b/cmd/podman/volumes/prune.go
@@ -49,16 +49,46 @@ func init() {
func prune(cmd *cobra.Command, args []string) error {
var (
- pruneOptions = entities.VolumePruneOptions{}
+ pruneOptions = entities.VolumePruneOptions{}
+ listOptions = entities.VolumeListOptions{}
+ unusedOptions = entities.VolumeListOptions{}
)
// Prompt for confirmation if --force is not set
force, err := cmd.Flags().GetBool("force")
if err != nil {
return err
}
+ pruneOptions.Filters, err = filters.ParseFilterArgumentsIntoFilters(filter)
if !force {
reader := bufio.NewReader(os.Stdin)
- fmt.Println("WARNING! This will remove all volumes not used by at least one container.")
+ fmt.Println("WARNING! This will remove all volumes not used by at least one container. The following volumes will be removed:")
+ if err != nil {
+ return err
+ }
+ listOptions.Filter, err = filters.ParseFilterArgumentsIntoFilters(filter)
+ if err != nil {
+ return err
+ }
+ // filter all the dangling volumes
+ unusedOptions.Filter = make(map[string][]string, 1)
+ unusedOptions.Filter["dangling"] = []string{"true"}
+ unusedVolumes, err := registry.ContainerEngine().VolumeList(context.Background(), unusedOptions)
+ if err != nil {
+ return err
+ }
+ // filter volumes based on user input
+ filteredVolumes, err := registry.ContainerEngine().VolumeList(context.Background(), listOptions)
+ if err != nil {
+ return err
+ }
+ finalVolumes := getIntersection(unusedVolumes, filteredVolumes)
+ if len(finalVolumes) < 1 {
+ fmt.Println("No dangling volumes found")
+ return nil
+ }
+ for _, fv := range finalVolumes {
+ fmt.Println(fv.Name)
+ }
fmt.Print("Are you sure you want to continue? [y/N] ")
answer, err := reader.ReadString('\n')
if err != nil {
@@ -68,13 +98,23 @@ func prune(cmd *cobra.Command, args []string) error {
return nil
}
}
- pruneOptions.Filters, err = filters.ParseFilterArgumentsIntoFilters(filter)
- if err != nil {
- return err
- }
responses, err := registry.ContainerEngine().VolumePrune(context.Background(), pruneOptions)
if err != nil {
return err
}
return utils.PrintVolumePruneResults(responses, false)
}
+
+func getIntersection(a, b []*entities.VolumeListReport) []*entities.VolumeListReport {
+ var intersection []*entities.VolumeListReport
+ hash := make(map[string]bool, len(a))
+ for _, aa := range a {
+ hash[aa.Name] = true
+ }
+ for _, bb := range b {
+ if hash[bb.Name] {
+ intersection = append(intersection, bb)
+ }
+ }
+ return intersection
+}