vid2mov: better args handling

vid2mov/README.md

@@ -5,6 +5,8 @@ a simple script around ffmpeg to convert a video file to `.mov`.
 
 I personally use this script when I record something in OBS Studio and then want to import into DaVinci Resolve.
 
+Run ``vid2mov -h`` for help.
+
 ## Requirements
 - [ffmpeg](https://www.ffmpeg.org/)
 - [notify-send](https://gitlab.gnome.org/GNOME/libnotify) (optional)

vid2mov/vid2mov.sh

@@ -1,17 +1,43 @@
 #!/bin/sh
 
+usage() {
+cat << EOF  
+Usage: vid2mov -i [input_file] {-o [output_file]} {-y}
+
+-h                Show this help.
+
+-i                Specify input_file.
+
+-o                Specify output_file. Default to input_file with .mov extension.
+
+-y                Pass the -y flag to ffmpeg.
+EOF
+}
+
 notify() {
     if [ "$(command -v notify-send)" ]; then
         notify-send "$@"
     fi
 }
 
-VIDEO_PATH=$1
-[ "$VIDEO_PATH" = "" ] && echo "error: video_path not given" &&  exit 1
 
-[ "$2" != "" ] && OUT_PATH=$2 || OUT_PATH=${VIDEO_PATH%%.*}.mov
+VIDEO_PATH=""
+OUT_PATH=""
+CONFIRMATION=""
 
-if ffmpeg -i "$VIDEO_PATH" -vcodec mpeg4 -q:v 2 -acodec pcm_s16le -q:a 0 -f mov "$OUT_PATH"; then
+while getopts "hi:o::y" ARG; do
+    case $ARG in
+        h) usage ; exit 0;;
+        i) VIDEO_PATH=$OPTARG;;
+        o) OUT_PATH=$OPTARG;;
+        y) CONFIRMATION="-y";;
+    esac
+done
+
+[ "$VIDEO_PATH" = "" ] && echo "error: video_path not given" && usage &&  exit 1
+[ "$OUT_PATH" = "" ] && OUT_PATH=${VIDEO_PATH%%.*}.mov
+
+if ffmpeg -i "$VIDEO_PATH" -vcodec mpeg4 -q:v 2 -acodec pcm_s16le -q:a 0 -f mov "$OUT_PATH" $CONFIRMATION; then
     echo "Done"
     notify "vid2mov" "$OUT_PATH done converting"
     exit 0