{backup,snapshot}: Log and display in control

internal/component/snapshots/backup.go

@@ -44,7 +44,6 @@ type Backup struct {
 // BackupDescription provides a description for a backup
 type BackupDescription struct {
 	Dest string // Destination path
-	Auto bool   // Was the path created automatically?
 
 	ConcurrentSnapshots int // maximum number of concurrent snapshots
 }

internal/component/snapshots/log.go

@@ -0,0 +1,17 @@
+package snapshots
+
+import "github.com/FAU-CDI/wisski-distillery/internal/models"
+
+func (backup *Backup) LogEntry() models.Snapshot {
+	return models.Snapshot{
+		Created: backup.StartTime,
+		Slug:    "",
+	}
+}
+
+func (snapshot *Snapshot) LogEntry() models.Snapshot {
+	return models.Snapshot{
+		Created: snapshot.StartTime,
+		Slug:    snapshot.Instance.Slug,
+	}
+}

internal/component/snapshots/manager.go

@@ -7,6 +7,7 @@ import (
 
 	"github.com/FAU-CDI/wisski-distillery/internal/component"
 	"github.com/FAU-CDI/wisski-distillery/internal/component/instances"
+	"github.com/FAU-CDI/wisski-distillery/internal/component/sql"
 	"github.com/FAU-CDI/wisski-distillery/pkg/environment"
 	"github.com/FAU-CDI/wisski-distillery/pkg/fsx"
 	"github.com/FAU-CDI/wisski-distillery/pkg/password"
@@ -15,6 +16,8 @@ import (
 // Manager manages snapshots and backups
 type Manager struct {
 	component.ComponentBase
+
+	SQL       *sql.SQL
 	Instances *instances.Instances
 
 	Snapshotable []component.Snapshotable
@@ -54,7 +57,7 @@ func (dis *Manager) NewArchivePath(prefix string) (path string) {
 // newSnapshot name returns a new basename for a snapshot with the provided prefix.
 // The name is guaranteed to be unique within this process.
 func (*Manager) newSnapshotName(prefix string) string {
-	suffix, _ := password.Password(64) // silently ignore any errors!
+	suffix, _ := password.Password(10) // silently ignore any errors!
 	if prefix == "" {
 		prefix = "backup"
 	} else {
@@ -68,7 +71,6 @@ func (*Manager) newSnapshotName(prefix string) string {
 func (dis *Manager) NewStagingDir(prefix string) (path string, err error) {
 	for path == "" || environment.IsExist(err) {
 		path = filepath.Join(dis.StagingPath(), dis.newSnapshotName(prefix))
-		fmt.Println("path =>", prefix, "err => ", err)
 		err = dis.Core.Environment.Mkdir(path, environment.DefaultFilePerm)
 	}
 	if err != nil {

internal/component/snapshots/prune.go

@@ -0,0 +1,54 @@
+package snapshots
+
+import (
+	"path/filepath"
+	"time"
+
+	"github.com/tkw1536/goprogram/stream"
+)
+
+// ShouldPrune determines if a file with the provided modtime
+func (manager *Manager) ShouldPrune(modtime time.Time) bool {
+	return time.Since(modtime) > time.Duration(manager.Config.MaxBackupAge)*24*time.Hour
+}
+
+// Prune prunes all backups and snapshots older than the maximum backup age
+func (manager *Manager) PruneBackups(io stream.IOStream) error {
+	sPath := manager.ArchivePath()
+
+	// list all the files
+	entries, err := manager.Core.Environment.ReadDir(sPath)
+	if err != nil {
+		return err
+	}
+
+	for _, entry := range entries {
+		// skip directories
+		if entry.IsDir() {
+			continue
+		}
+
+		// grab info about the file
+		info, err := entry.Info()
+		if err != nil {
+			return err
+		}
+
+		// check if it should be pruned!
+		if !manager.ShouldPrune(info.ModTime()) {
+			continue
+		}
+
+		// assemble path, and then remove the file!
+		path := filepath.Join(sPath, entry.Name())
+		io.Printf("Removing %s cause it is older than %d days", path, manager.Config.MaxBackupAge)
+
+		if err := manager.Core.Environment.Remove(path); err != nil {
+			return err
+		}
+	}
+
+	// prune the snapshot log!
+	_, err = manager.Instances.SnapshotLog()
+	return err
+}