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package cmd
import (
"fmt"
"github.com/smira/commander"
"github.com/smira/flag"
)
func aptlySnapshotDrop(cmd *commander.Command, args []string) error {
var err error
if len(args) != 1 {
cmd.Usage()
return commander.ErrCommandError
}
name := args[0]
collectionFactory := context.NewCollectionFactory()
snapshot, err := collectionFactory.SnapshotCollection().ByName(name)
if err != nil {
return fmt.Errorf("unable to drop: %s", err)
}
published := collectionFactory.PublishedRepoCollection().BySnapshot(snapshot)
if len(published) > 0 {
fmt.Printf("Snapshot `%s` is published currently:\n", snapshot.Name)
for _, repo := range published {
err = collectionFactory.PublishedRepoCollection().LoadComplete(repo, collectionFactory)
if err != nil {
return fmt.Errorf("unable to load published: %s", err)
}
fmt.Printf(" * %s\n", repo)
}
return fmt.Errorf("unable to drop: snapshot is published")
}
force := context.Flags().Lookup("force").Value.Get().(bool)
if !force {
snapshots := collectionFactory.SnapshotCollection().BySnapshotSource(snapshot)
if len(snapshots) > 0 {
fmt.Printf("Snapshot `%s` was used as a source in following snapshots:\n", snapshot.Name)
for _, snap := range snapshots {
fmt.Printf(" * %s\n", snap)
}
return fmt.Errorf("won't delete snapshot that was used as source for other snapshots, use -force to override")
}
}
err = collectionFactory.SnapshotCollection().Drop(snapshot)
if err != nil {
return fmt.Errorf("unable to drop: %s", err)
}
fmt.Printf("Snapshot `%s` has been dropped.\n", snapshot.Name)
return err
}
func makeCmdSnapshotDrop() *commander.Command {
cmd := &commander.Command{
Run: aptlySnapshotDrop,
UsageLine: "drop <name>",
Short: "delete snapshot",
Long: `
Drop removes information about a snapshot. If snapshot is published,
it can't be dropped.
Example:
$ aptly snapshot drop wheezy-main
`,
Flag: *flag.NewFlagSet("aptly-snapshot-drop", flag.ExitOnError),
}
cmd.Flag.Bool("force", false, "remove snapshot even if it was used as source for other snapshots")
return cmd
}
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