forked from mirrors/nixpkgs
771c7fb496
Added support for managing Plex plugins via Nix. This is done via an "extraPlugins" configuration option which takes a list of paths to plugin bundles, which are then symlinked into Plex's plugin directory when the service is started.
147 lines
4.8 KiB
Nix
147 lines
4.8 KiB
Nix
{ config, pkgs, lib, ... }:
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with lib;
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let
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cfg = config.services.plex;
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plex = pkgs.plex;
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in
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{
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options = {
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services.plex = {
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enable = mkEnableOption "Enable Plex Media Server";
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# FIXME: In order for this config option to work, symlinks in the Plex
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# package in the Nix store have to be changed to point to this directory.
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dataDir = mkOption {
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type = types.str;
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default = "/var/lib/plex";
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description = "The directory where Plex stores its data files.";
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};
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user = mkOption {
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type = types.str;
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default = "plex";
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description = "User account under which Plex runs.";
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};
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group = mkOption {
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type = types.str;
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default = "plex";
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description = "Group under which Plex runs.";
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};
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managePlugins = mkOption {
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type = types.bool;
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default = true;
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description = ''
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If set to true, this option will cause all of the symlinks in Plex's
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plugin directory to be removed and symlinks for paths specified in
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<option>extraPlugins</option> to be added.
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'';
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};
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extraPlugins = mkOption {
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type = types.listOf types.path;
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default = [];
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description = ''
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A list of paths to extra plugin bundles to install in Plex's plugin
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directory. Every time the systemd unit for Plex starts up, all of the
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symlinks in Plex's plugin directory will be cleared and this module
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will symlink all of the paths specified here to that directory. If
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this behavior is undesired, set <option>managePlugins</option> to
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false.
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'';
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};
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};
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};
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config = mkIf cfg.enable {
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# Most of this is just copied from the RPM package's systemd service file.
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systemd.services.plex = {
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description = "Plex Media Server";
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after = [ "network.target" ];
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wantedBy = [ "multi-user.target" ];
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preStart = ''
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test -d "${cfg.dataDir}" || {
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echo "Creating initial Plex data directory in \"${cfg.dataDir}\"."
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mkdir -p "${cfg.dataDir}"
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chown -R ${cfg.user}:${cfg.group} "${cfg.dataDir}"
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}
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# Copy the database skeleton files to /var/lib/plex/.skeleton
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# See the the Nix expression for Plex's package for more information on
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# why this is done.
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test -d "${cfg.dataDir}/.skeleton" || mkdir "${cfg.dataDir}/.skeleton"
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for db in "com.plexapp.plugins.library.db"; do
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cp "${plex}/usr/lib/plexmediaserver/Resources/base_$db" "${cfg.dataDir}/.skeleton/$db"
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chmod u+w "${cfg.dataDir}/.skeleton/$db"
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chown ${cfg.user}:${cfg.group} "${cfg.dataDir}/.skeleton/$db"
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done
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# If managePlugins is enabled, setup symlinks for plugins.
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${optionalString cfg.managePlugins ''
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echo "Preparing plugin directory."
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PLUGINDIR="${cfg.dataDir}/Plex Media Server/Plug-ins"
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test -d "$PLUGINDIR" || {
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mkdir -p "$PLUGINDIR";
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chown ${cfg.user}:${cfg.group} "$PLUGINDIR";
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}
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echo "Removing old symlinks."
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# First, remove all of the symlinks in the directory.
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for f in `ls "$PLUGINDIR/"`; do
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if [[ -L "$PLUGINDIR/$f" ]]; then
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echo "Removing plugin symlink $PLUGINDIR/$f."
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rm "$PLUGINDIR/$f"
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fi
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done
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echo "Symlinking plugins."
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for path in ${toString cfg.extraPlugins}; do
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dest="$PLUGINDIR/$(basename $path)"
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if [[ ! -d "$path" ]]; then
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echo "Error symlinking plugin from $path: no such directory."
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elif [[ -d "$dest" || -L "$dest" ]]; then
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echo "Error symlinking plugin from $path to $dest: file or directory already exists."
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else
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echo "Symlinking plugin at $path..."
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ln -s "$path" "$dest"
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fi
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done
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''}
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'';
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serviceConfig = {
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Type = "simple";
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User = cfg.user;
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Group = cfg.group;
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PermissionsStartOnly = "true";
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ExecStart = "/bin/sh -c '${plex}/usr/lib/plexmediaserver/Plex\\ Media\\ Server'";
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};
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environment = {
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PLEX_MEDIA_SERVER_APPLICATION_SUPPORT_DIR=cfg.dataDir;
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PLEX_MEDIA_SERVER_HOME="${plex}/usr/lib/plexmediaserver";
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PLEX_MEDIA_SERVER_MAX_PLUGIN_PROCS="6";
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PLEX_MEDIA_SERVER_TMPDIR="/tmp";
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LD_LIBRARY_PATH="${plex}/usr/lib/plexmediaserver";
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LC_ALL="en_US.UTF-8";
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LANG="en_US.UTF-8";
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};
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};
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users.extraUsers = mkIf (cfg.user == "plex") {
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plex = {
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group = cfg.group;
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uid = config.ids.uids.plex;
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};
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};
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users.extraGroups = mkIf (cfg.group == "plex") {
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plex = {
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gid = config.ids.gids.plex;
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};
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};
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};
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}
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