Create shared / fast track for certain packages

pkgbuilds/shared/spotify/spotify.sh

@@ -0,0 +1,13 @@
+#!/bin/bash
+
+# Substitute XDG_CONFIG_HOME by ~/.config if the env var is unset or empty
+XDG_CONFIG_HOME=${XDG_CONFIG_HOME:-~/.config}
+
+# Allow users to override command-line options
+if [[ -f "${XDG_CONFIG_HOME}/spotify-flags.conf" ]]; then
+    mapfile -t SPOTIFY_USER_FLAGS <<< "$(grep -v '^#' "${XDG_CONFIG_HOME}/spotify-flags.conf")"
+    echo "User flags:" "${SPOTIFY_USER_FLAGS[@]}"
+fi
+
+# Launch Spotify with the given flags
+exec /opt/spotify/spotify "${SPOTIFY_USER_FLAGS[@]}" "$@"