{backup,snapshot}: Log and display in control

internal/component/instances/wisski_log.go

@@ -0,0 +1,73 @@
+package instances
+
+import (
+	"github.com/FAU-CDI/wisski-distillery/internal/models"
+	"github.com/FAU-CDI/wisski-distillery/pkg/environment"
+	"github.com/FAU-CDI/wisski-distillery/pkg/slicesx"
+)
+
+// SnapshotLogFor retrieves (and prunes) the SnapshotLog for the provided slug.
+// An empty slug returns the log of backups.
+func (instances *Instances) SnapshotLogFor(slug string) (snapshots []models.Snapshot, err error) {
+	snapshots, err = instances.SnapshotLog()
+	if err != nil {
+		return nil, err
+	}
+
+	return slicesx.Filter(snapshots, func(s models.Snapshot) bool {
+		return s.Slug == slug
+	}), nil
+}
+
+// SnapshotLog retrieves (and prunes) all entries in the snapshot log.
+func (instances *Instances) SnapshotLog() ([]models.Snapshot, error) {
+	// query the table!
+	table, err := instances.SQL.QueryTable(false, models.SnapshotTable)
+	if err != nil {
+		return nil, err
+	}
+
+	// find all the snapshots
+	var snapshots []models.Snapshot
+	res := table.Find(&snapshots)
+	if res.Error != nil {
+		return nil, res.Error
+	}
+
+	// partition out the snapshots that have been deleted!
+	parts := slicesx.Partition(snapshots, func(s models.Snapshot) bool {
+		_, err := instances.Core.Environment.Stat(s.Path)
+		return !environment.IsNotExist(err)
+	})
+
+	// go and delete them!
+	if len(parts[false]) > 0 {
+		if err := table.Delete(parts[false]).Error; err != nil {
+			return nil, err
+		}
+	}
+
+	// return the ones that still exist
+	return parts[true], nil
+}
+
+// Snapshots returns the list of snapshots of this WissKI
+func (wisski *WissKI) Snapshots() (snapshots []models.Snapshot, err error) {
+	return wisski.instances.SnapshotLogFor(wisski.Slug)
+}
+
+// AddSnapshotLog adds a log entry for the provided entry
+func (instances *Instances) AddSnapshotLog(snapshot models.Snapshot) error {
+	// find the table
+	table, err := instances.SQL.QueryTable(false, models.SnapshotTable)
+	if err != nil {
+		return err
+	}
+
+	// and save it!
+	res := table.Create(&snapshot)
+	if res.Error != nil {
+		return res.Error
+	}
+	return nil
+}

internal/component/instances/wisski_status.go

@@ -4,6 +4,7 @@ import (
 	"fmt"
 	"time"
 
+	"github.com/FAU-CDI/wisski-distillery/internal/models"
 	"github.com/tkw1536/goprogram/stream"
 	"golang.org/x/sync/errgroup"
 )
@@ -20,6 +21,9 @@ type WissKIInfo struct {
 	Running     bool
 	LastRebuild time.Time
 
+	// List of backups made
+	Snapshots []models.Snapshot
+
 	// WissKI content information
 	Prefixes     []string          // list of prefixes
 	Pathbuilders map[string]string // all the pathbuilders
@@ -59,6 +63,10 @@ func (wisski *WissKI) Info(quick bool) (info WissKIInfo, err error) {
 			info.Prefixes, _ = wisski.Prefixes()
 			return nil
 		})
+		group.Go(func() error {
+			info.Snapshots, _ = wisski.Snapshots()
+			return nil
+		})
 	}
 
 	err = group.Wait()