plex-desktop: add libdrm to buildFHSEnv, update sqlite write permissi…

…ons (#357108)

pkgs/by-name/pl/plex-desktop/package.nix

@@ -14,6 +14,7 @@
   libGL,
   libapparmor,
   libbsd,
+  libdrm,
   libedit,
   libffi_3_3,
   libgcrypt,
@@ -122,7 +123,10 @@ let
 in
 buildFHSEnv {
   inherit pname version meta;
-  targetPkgs = pkgs: [ xkeyboard_config ];
+  targetPkgs = pkgs: [
+    libdrm
+    xkeyboard_config
+  ];
 
   extraInstallCommands = ''
     mkdir -p $out/share/applications $out/share/icons/hicolor/scalable/apps
@@ -136,6 +140,17 @@ buildFHSEnv {
   runScript = writeShellScript "plex-desktop.sh" ''
     # Widevine won't download unless this directory exists.
     mkdir -p $HOME/.cache/plex/
+
+    # Copy the sqlite plugin database on first run.
+    PLEX_DB="$HOME/.local/share/plex/Plex Media Server/Plug-in Support/Databases"
+    if [[ ! -d "$PLEX_DB" ]]; then
+      mkdir -p "$PLEX_DB"
+      cp "${plex-desktop}/resources/com.plexapp.plugins.library.db" "$PLEX_DB"
+    fi
+
+    # db files should have write access.
+    chmod --recursive 750 "$PLEX_DB"
+
     PLEX_USR_PATH=${lib.makeSearchPath "usr/lib/x86_64-linux-gnu" [ plex-desktop ]}
 
     set -o allexport