refactor(dotfiles): rename system/ to common/ and remove unused configs

Rename dotfiles/system to dotfiles/common for clarity - indicates
shared dotfiles used across all desktop environments (DWM, Hyprland).

Removed config directories for uninstalled applications:
- ghostty (using different terminal)
- lf (using ranger instead)
- mopidy (using mpd instead)
- nitrogen (X11-only, obsolete for Wayland)
- pychess (not installed)
- JetBrains (not installed via archsetup)
- youtube-dl (using yt-dlp with different config location)

Kept audacious config for potential future use.

Updated all references in archsetup, CLAUDE.md, todo.org, and
validation.sh.

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

1 files changed, 173 insertions, 0 deletions

diff --git a/dotfiles/common/.local/bin/mkplaylist b/dotfiles/common/.local/bin/mkplaylist
new file mode 100755
index 0000000..66b6e9c
--- /dev/null
+++ b/dotfiles/common/.local/bin/mkplaylist
@@ -0,0 +1,173 @@
+#!/usr/bin/env bash
+# Craig Jennings <c@cjennings.net>
+# Basically just a bash wrapper around a find/grep/awk command pipe
+# to generate m3u playlists from video or audio files in a directory.
+
+# One m3u playlist will be placed in the MUSIC_DIR, and another
+# will be placed inside each playlist directory.
+# It also converts .opus and .ogg files to .m4a for Android playback.
+
+# Note:
+# This script requires the following utilities to be on the path:
+# mid3v2 (aur package: python-mutagen)
+# tageditor (aur package: tageditor)
+# metaflac (aur package: flac)
+
+set -e
+
+MUSIC_DIR="$HOME/music"
+# REQUIRED_TOOLS=("mid3v2" "tageditor")
+REQUIRED_TOOLS=("mid3v2" "metaflac" "tageditor")
+
+#  ---------------------------- Functions ----------------------------
+
+usage () {
+    printf "\nUsage: mkplaylist <playlist_name>\n\n"
+    printf "mkplaylist - creates an m3u playlist in the $MUSIC_DIR directory\n"
+    printf "based the music and video files in directory which m3uplaylist is called.\n\n"
+    printf " - this script should be run in the directory containing the music or video files\n"
+    printf " - <playlist_name> is mandatory and shouldn't end with '.m3u' extension\n"
+    printf " - change the destination ($MUSIC_DIR) by editing this script\n\n"
+}
+
+tag_music_file() {
+  while IFS= read -r file; do
+    filename=$(basename "$file")
+    extension="${filename##*.}"
+    artist=$(basename "$file" | cut -d '-' -f 1)
+    title=$(basename "$file" | cut -d '-' -f 2- | cut -d '.' -f 1)
+    outputfile="$(dirname "$file")/$title.flac"
+
+    # If file is not already flac, convert it
+    if [ "$extension" != "flac" ]; then
+
+      # Delete all tags using mid3v2
+      mid3v2 --delete-all "$file"
+      ffmpeg -i "$file" -vn -c:a flac "$outputfile"
+      file="$outputfile"  # Now we're working with the new FLAC file
+
+    fi
+
+    # Set artist and song title tags using metaflac
+    metaflac --set-tag="ARTIST=$artist" --set-tag="TITLE=$title" "$file"
+
+   done
+}
+
+# tag_music_file() {
+#     while IFS= read -r file; do
+#         filename=$(basename "$file")
+#         extension="${filename##*.}"
+#         artist=$(basename "$file" | cut -d '-' -f 1)
+#         title=$(basename "$file" | cut -d '-' -f 2- | cut -d '.' -f 1)
+#         outputfile="$(dirname "$file")/$title.flac"
+
+#         # Delete all tags using mid3v2
+#         mid3v2 --delete-all "$file"
+
+#         # If file is not already flac, convert it
+#         if [ "$extension" != "flac" ]; then
+#             ffmpeg -i "$file" -vn -c:a flac "$outputfile"
+#             file="$outputfile"  # Now we're working with the new FLAC file
+#         fi
+
+#         # Set artist and song title tags using metaflac
+#         metaflac --set-tag="ARTIST=$artist" --set-tag="TITLE=$title" "$file"
+#     done
+# }
+
+# tag_music_file() {
+#     while IFS= read -r file; do
+#         # Extract artist and song title from filename
+#         artist=$(basename "$file" | cut -d '-' -f 1)
+#         title=$(basename "$file" | cut -d '-' -f 2- | cut -d '.' -f 1)
+#         outputfile="$(dirname "$file")/$title.flac"
+
+#         # Delete all tags using mid3v2
+#         mid3v2 --delete-all "$file"
+
+#         # Convert to flac and save to new file
+#         ffmpeg -i "$file" -vn -c:a flac "$outputfile"
+
+#         # Set artist and song title tags using metaflac
+#         metaflac --set-tag="ARTIST=$artist" --set-tag="TITLE=$title" "$outputfile"
+#     done
+# }
+
+# tag_music_file() {
+#     while IFS= read -r file; do
+#         # Extract artist and song title from filename
+#         artist=$(basename "$file" | cut -d '-' -f 1)
+#         title=$(basename "$file" | cut -d '-' -f 2 | cut -d '.' -f 1)
+#         outputfile="$(dirname "$file")/$title.flac"
+
+#         # Delete all tags using mid3v2
+#         mid3v2 --delete-all "$file"
+
+#         # Set artist and song title tags using mid3v2
+#         mid3v2 --artist="$artist" --song="$title" "$file"
+#         # Convert to flac and save to new file
+#         ffmpeg -i "$file" -vn -c:a flac "$outputfile"
+#     done
+# }
+
+# tag_music_file() {
+#     while IFS= read -r file; do
+#         # Extract artist and song title from filename
+#         artist=$(basename "$file" | cut -d '-' -f 1)
+#         title=$(basename "$file" | cut -d '-' -f 2 | cut -d '.' -f 1)
+
+#         # Delete all tags using mid3v2
+#         mid3v2 --delete-all "$file"
+
+#         # Set artist and song title tags using mid3v2
+#         mid3v2 --artist="$artist" --song="$title" "$file"
+#     done
+# }
+
+ generate_music_m3u() {
+     printf "retagging music files....\n"
+     find "$(pwd)" -print | file -if - | grep -E '(audio)' | awk -F: '{print $1}' | tag_music_file
+
+     printf "generating playlist.'%s'...\n" "$LOCAL_PLAYLIST"
+     find "$(pwd)" -print | file -if - | grep -E '(video|audio)' |
+         awk -F: '{print $1}' | while read -r line; do basename "$line"; done > "$LOCAL_PLAYLIST"
+     printf "generating playlist '%s'....\n" "$MUSIC_PLAYLIST"
+     find "$(pwd)" -print | file -if - | grep -E '(video|audio)' | awk -F: '{print $1}' > "$MUSIC_PLAYLIST"
+     printf "Done.\n\n"
+ }
+
+ #  ----------------------------- Script ----------------------------
+
+ # display usage if user specifically requests it
+ TYPE=$(tr '[a-z]' '[A-Z]' <<< "$@");
+ [ "$TYPE" = "HELP" ] && usage && exit 1
+ [ "$TYPE" = "-H" ] &&  usage&& exit 1
+
+ # check that all necessary tools are installed
+ for tool in ${REQUIRED_TOOLS[@]}; do
+     if ! type "$tool" >/dev/null 2>&1; then
+         printf "ERROR: The script requires '%s' but it is not installed or not in PATH.\n" "$tool"
+         exit 1
+     fi
+ done
+
+ # use directory name for playlist name when parameter doesn't exist
+ if [ $# -eq 0 ]
+ then
+     set -- "$(basename "$PWD")"
+     echo "no playlist name entered, so using directory name: '$(basename "$PWD")'"
+ fi
+
+ # ask to overwrite if the playlist already exists
+ MUSIC_PLAYLIST="$MUSIC_DIR/$@.m3u"
+ LOCAL_PLAYLIST="./$@.m3u"
+
+ if [ -f "$MUSIC_PLAYLIST" ]; then
+     read -p "$MUSIC_PLAYLIST exists. Overwrite (y/n) " yn
+     if [ "$yn" != "y" ] && [ "$yn" != "Y" ]; then
+         exit 0
+     fi
+ fi
+
+ generate_music_m3u