Migrate generated files when a scene is rescanned (#1106)

pkg/manager/migrate_hash.go

@@ -0,0 +1,59 @@
+package manager
+
+import (
+	"os"
+	"path/filepath"
+
+	"github.com/stashapp/stash/pkg/logger"
+	"github.com/stashapp/stash/pkg/utils"
+)
+
+func MigrateHash(oldHash string, newHash string) {
+	oldPath := filepath.Join(instance.Paths.Generated.Markers, oldHash)
+	newPath := filepath.Join(instance.Paths.Generated.Markers, newHash)
+	migrate(oldPath, newPath)
+
+	scenePaths := GetInstance().Paths.Scene
+	oldPath = scenePaths.GetThumbnailScreenshotPath(oldHash)
+	newPath = scenePaths.GetThumbnailScreenshotPath(newHash)
+	migrate(oldPath, newPath)
+
+	oldPath = scenePaths.GetScreenshotPath(oldHash)
+	newPath = scenePaths.GetScreenshotPath(newHash)
+	migrate(oldPath, newPath)
+
+	oldPath = scenePaths.GetStreamPreviewPath(oldHash)
+	newPath = scenePaths.GetStreamPreviewPath(newHash)
+	migrate(oldPath, newPath)
+
+	oldPath = scenePaths.GetStreamPreviewImagePath(oldHash)
+	newPath = scenePaths.GetStreamPreviewImagePath(newHash)
+	migrate(oldPath, newPath)
+
+	oldPath = scenePaths.GetTranscodePath(oldHash)
+	newPath = scenePaths.GetTranscodePath(newHash)
+	migrate(oldPath, newPath)
+
+	oldPath = scenePaths.GetSpriteVttFilePath(oldHash)
+	newPath = scenePaths.GetSpriteVttFilePath(newHash)
+	migrate(oldPath, newPath)
+
+	oldPath = scenePaths.GetSpriteImageFilePath(oldHash)
+	newPath = scenePaths.GetSpriteImageFilePath(newHash)
+	migrate(oldPath, newPath)
+}
+
+func migrate(oldName, newName string) {
+	oldExists, err := utils.FileExists(oldName)
+	if err != nil && !os.IsNotExist(err) {
+		logger.Errorf("Error checking existence of %s: %s", oldName, err.Error())
+		return
+	}
+
+	if oldExists {
+		logger.Infof("renaming %s to %s", oldName, newName)
+		if err := os.Rename(oldName, newName); err != nil {
+			logger.Errorf("error renaming %s to %s: %s", oldName, newName, err.Error())
+		}
+	}
+}