add more options to replaygain on process

.direnv/flake-profile

@@ -0,0 +1 @@
+flake-profile-1-link

.direnv/flake-profile-1-link

@@ -0,0 +1 @@
+/nix/store/636l6zba529dbpcnyr0vmnq5kynfcqpr-nix-shell-env

.envrc

@@ -1 +1 @@
-use nix         
+use flake

flake.nix

@@ -33,6 +33,7 @@
             '';
 
             doCheck = false;
+            buildInputs = with final; [ r128gain ffmpeg ];
 
             propagatedBuildInputs = with final.python3Packages; [
               mutagen
@@ -59,10 +60,10 @@
 
         devShell = pkgs.mkShell {
           inputsFrom = [ self.packages.${system}.musicutil ];
-          buildInputs = with pkgs; [
+          buildInputs = with pkgs; [ nixUnstable ffmpeg r128gain ];
-            nixUnstable
+          propagatedBuildInputs = with pkgs.python3Packages; [
             mutagen
-            self.packages.${system}.fold-to-ascii
+            pkgs.fold-to-ascii
             pyyaml
           ];
         };

musicutil/commands/process_command.py

@@ -15,8 +15,7 @@ class ProcessCommandState:
 class ProcessCommandArgs:
     src: str
     dry_run: bool
-    skip_replaygain: bool
+    replaygain: str
-
 
 def add_process_command(subparsers):
     process_parser = subparsers.add_parser('process')
@@ -27,15 +26,18 @@ def add_process_command(subparsers):
     process_parser.add_argument(
         '--dry-run', action='store_true')
     process_parser.add_argument(
-        '--skip-replaygain',
+        '--replaygain',
-        action='store_true')
+        type=str,
+        default="skip_existing",
+        help="skip,skip_existing,force"
+    )
 
 
 def get_process_args(args) -> ProcessCommandArgs:
     command_args = ProcessCommandArgs()
     command_args.src = args.src
     command_args.dry_run = args.dry_run
-    command_args.skip_replaygain = args.skip_replaygain
+    command_args.replaygain = args.replaygain
     return command_args
 
 
@@ -49,9 +51,9 @@ class ProcessCommand():
         self.scan_for_music()
         self.load_tag_information()
         self.rename_files()
-        if (not self.args.skip_replaygain) and (
+        if not self.args.dry_run:
-                not self.args.dry_run):
+            if self.args.replaygain != "skip":
-            self.add_replaygain_tags()
+                self.add_replaygain_tags()
 
     def scan_for_music(self):
         print("Scanning For Music")
@@ -101,6 +103,9 @@ class ProcessCommand():
         print("Adding ReplayGain Tags")
 
         for file in self.state.files:
+            if self.args.replaygain == "skip_existing":
+                if file.tags.has_replaygain:
+                    continue
             print(
                 f"Adding ReplayGain Tags to \"{file.filename}.{file.extension}\"")
 

musicutil/types.py

@@ -1,11 +1,13 @@
 class Tags:
     title = ""
     artist = ""
+    has_replaygain = False
 
     def to_dict(self):
         return {
             "title": self.title,
-            "artist": self.artist
+            "artist": self.artist,
+            "has_replaygain": self.has_replaygain
         }
 
     def __repr__(self):

musicutil/utils/load_tag_information.py

@@ -4,7 +4,7 @@ from ..meta import ffprobe_path
 from subprocess import run as run_command
 from json import loads as load_json_string
 
-from mutagen.mp3 import EasyMP3 as MP3
+from mutagen.mp3 import MP3, EasyMP3
 from mutagen.flac import FLAC
 
 
@@ -12,11 +12,16 @@ def load_tag_information_mutagen(file: File) -> Tags:
     path = file.join_path_to()
     tags = Tags()
     if file.extension == "mp3":
+        easymp3 = EasyMP3(path)
         mp3 = MP3(path)
-        tags.title = mp3["title"][0]
+        tags.title = easymp3["title"][0]
-        tags.artist = mp3["artist"][0]
+        tags.artist = easymp3["artist"][0]
+        if "REPLAYGAIN_TRACK_GAIN" in mp3.keys() or "TXXX:REPLAYGAIN_TRACK_PEAK" in mp3.keys():
+            tags.has_replaygain = True
     elif file.extension == "flac":
         flac = FLAC(path)
+        if "replaygain_track_peak" in flac.keys():
+            tags.has_replaygain = True
         tags.title = flac["title"][0]
         tags.artist = flac["artist"][0]
     else:
@@ -46,6 +51,7 @@ def load_tag_information_ffmpeg(file: File) -> Tags:
     artist = None
 
     try:
+        print(file_tags.keys())
         if "title" in file_tags.keys():
             title = file_tags["title"]
         elif "TITLE" in file_tags.keys():