add --dry-run option

main.go

@@ -77,6 +77,7 @@ func main() {
 	var logout bool = false
 	var deleteFullVod bool = false
 	var forceUpload bool = false
+	var dryRun bool = false
 	var directory string = "."
 
 	for i, arg := range os.Args {
@@ -110,6 +111,9 @@ func main() {
 			case "--force":
 				forceUpload = true
 
+			case "--dry-run":
+				dryRun = true
+
 			default:
 				fmt.Fprintf(os.Stderr, "Unknown option `%s`\n", arg)
 				os.Exit(1)
@@ -273,29 +277,35 @@ func main() {
 		)
 	}
 
-	// concatenate VOD segments into full VOD
-	fullVodExists := func () bool {
+	if (!dryRun) {
 		// check if full VOD already exists with expected duration
+		fullVodExists := false
 		fullVodProbe, err := scanner.ProbeSegment(video.Filepath)
-		if err != nil { return false }
-		video.SizeBytes = fullVodProbe.Format.Size
-		var totalLength float64 = 0
+		if err == nil {
+			video.SizeBytes = fullVodProbe.Format.Size
+			var totalLength float64 = 0
 
-		for _, filename := range vodFiles {
-			probe, err := scanner.ProbeSegment(path.Join(footageDir, filename))
-			if err != nil { continue }
-			totalLength += probe.Format.Duration
+			for _, filename := range vodFiles {
+				probe, err := scanner.ProbeSegment(path.Join(footageDir, filename))
+				if err != nil { continue }
+				totalLength += probe.Format.Duration
+			}
+			// full VOD may exist, but not be complete (interrupted concat)
+			fullVodExists = math.Abs(fullVodProbe.Format.Duration - totalLength) < float64(0.1)
+		}
+
+		if fullVodExists {
+			log.Print("Full VOD appears to already exist- uploading this file...")
+		} else {
+			// concatenate VOD segments into full VOD
+			video.SizeBytes, err = vid.ConcatVideo(video, vodFiles, verbose)
+			if err != nil {
+				log.Fatalf("Failed to concatenate VOD segments: %v", err)
+				os.Exit(1)
+			}
 		}
-		return math.Abs(fullVodProbe.Format.Duration - totalLength) < float64(0.1)
-	}()
-	if fullVodExists {
-		log.Print("Full VOD appears to already exist- uploading this file...")
 	} else {
-		video.SizeBytes, err = vid.ConcatVideo(video, vodFiles, verbose)
-		if err != nil {
-			log.Fatalf("Failed to concatenate VOD segments: %v", err)
-			os.Exit(1)
-		}
+		log.Print("Dry run: Skipping VOD concatenation")
 	}
 
 	// youtube oauth flow
@@ -329,35 +339,39 @@ func main() {
 		log.Fatalf("Failed to save OAuth token: %v", err)
 	}
 
-	// okay actually upload now!
-	ytVideo, err := yt.UploadVideo(ctx, tokenSource, video, thumbnail, templates)
-	if err != nil {
-		log.Fatalf("Failed to upload video: %v", err)
-		os.Exit(1)
-	}
-	if verbose {
-		jsonString, err := json.MarshalIndent(ytVideo, "", "  ")
+	if (!dryRun) {
+		// okay actually upload now!
+		ytVideo, err := yt.UploadVideo(ctx, tokenSource, video, thumbnail, templates)
 		if err != nil {
-			log.Fatalf("Failed to marshal video data json: %v", err)
+			log.Fatalf("Failed to upload video: %v", err)
+			os.Exit(1)
 		}
-		fmt.Println(string(jsonString))
-	}
-	log.Print("Video uploaded successfully!")
+		if verbose {
+			jsonString, err := json.MarshalIndent(ytVideo, "", "  ")
+			if err != nil {
+				log.Fatalf("Failed to marshal video data json: %v", err)
+			}
+			fmt.Println(string(jsonString))
+		}
+		log.Print("Video uploaded successfully!")
 
-	// update metadata to reflect VOD is uploaded
-	// TODO: rather than a boolean flag, link to actual video
-	metadata.Uploaded = true
-	err = scanner.WriteMetadata(directory, metadata)
-	if err != nil {
-		log.Fatalf("Failed to update metadata: %v", err)
-	}
-
-	// delete full VOD after upload, if requested
-	if deleteFullVod {
-		err = os.Remove(video.Filepath)
+		// update metadata to reflect VOD is uploaded
+		// TODO: rather than a boolean flag, link to actual video
+		metadata.Uploaded = true
+		err = scanner.WriteMetadata(directory, metadata)
 		if err != nil {
-			log.Fatalf("Failed to delete full VOD: %v", err)
+			log.Fatalf("Failed to update metadata: %v", err)
 		}
+
+		// delete full VOD after upload, if requested
+		if deleteFullVod {
+			err = os.Remove(video.Filepath)
+			if err != nil {
+				log.Fatalf("Failed to delete full VOD: %v", err)
+			}
+		}
+	} else {
+		log.Print("Dry run: Skipping video upload")
 	}
 }
 

res/help.txt

@@ -8,6 +8,7 @@ OPTIONS:
     --init: Initialise `directory` as a VOD directory.
     --logout: Logs out of the current YouTube account.
     -d, --deleteAfter: Deletes the full VOD after upload.
+    --dry-run: Don't upload or modify any files (Useful with -v)
     -f, --force: Force uploading the VOD, even if it already exists.
 
 SOURCE: https://codeberg.org/arimelody/vodular