prosody: improve module handling

nixos/doc/manual/release-notes/rl-1803.xml

@@ -347,6 +347,11 @@ following incompatible changes:</para>
     <para>
       The better-performing <literal>libevent</literal> backend is now enabled by default.
     </para>
+
+    <para>
+      <literal>withCommunityModules</literal> now passes through the modules to <option>services.prosody.extraModules</option>.
+      Use <literal>withOnlyInstalledCommunityModules</literal> for modules that should not be enabled directly, e.g <literal>lib_ldap</literal>.
+    </para>
   </listitem>
 
 </itemizedlist>

nixos/modules/services/networking/prosody.nix

@@ -362,6 +362,12 @@ in
         description = "Enable custom modules";
       };
 
+      extraPluginPaths = mkOption {
+        type = types.listOf types.path;
+        default = [];
+        description = "Addtional path in which to look find plugins/modules";
+      };
+
       virtualHosts = mkOption {
 
         description = "Define the virtual hosts";
@@ -411,16 +417,18 @@ in
 
   config = mkIf cfg.enable {
 
-    environment.systemPackages = [ pkgs.prosody ];
+    environment.systemPackages = [ cfg.package ];
 
     environment.etc."prosody/prosody.cfg.lua".text = ''
 
       pidfile = "/var/lib/prosody/prosody.pid"
 
-
       log = "*syslog"
 
       data_path = "/var/lib/prosody"
+      plugin_paths = {
+        ${lib.concatStringsSep ", " (map (n: "\"${n}\"") cfg.extraPluginPaths) }
+      }
 
       ${ optionalString  (cfg.ssl != null) (createSSLOptsStr cfg.ssl) }
 
@@ -434,7 +442,7 @@ in
         ${ lib.concatStringsSep "\n\ \ " (lib.mapAttrsToList
           (name: val: optionalString val "${toLua name};")
         cfg.modules) }
-
+        ${ lib.concatStringsSep "\n" (map (x: "${toLua x};") cfg.package.communityModules)}
         ${ lib.concatStringsSep "\n" (map (x: "${toLua x};") cfg.extraModules)}
       };
 

pkgs/servers/xmpp/prosody/default.nix

@@ -4,6 +4,7 @@
 , withDBI ? true, luadbi ? null
 # use withExtraLibs to add additional dependencies of community modules
 , withExtraLibs ? [ ]
+, withOnlyInstalledCommunityModules ? [ ]
 , withCommunityModules ? [ ] }:
 
 assert withLibevent -> luaevent != null;
@@ -38,7 +39,8 @@ stdenv.mkDerivation rec {
     sha256 = "0nfx3lngcy88nd81gb7v4kh3nz1bzsm67bxgpd2lprk54diqcrz1";
   };
 
-  buildInputs = [ lua5 makeWrapper libidn openssl ];
+  buildInputs = [ lua5 makeWrapper libidn openssl ]
+    ++ optional withDBI luadbi;
 
   configureFlags = [
     "--ostype=linux"
@@ -49,7 +51,7 @@ stdenv.mkDerivation rec {
   postInstall = ''
       ${concatMapStringsSep "\n" (module: ''
         cp -r $communityModules/mod_${module} $out/lib/prosody/modules/
-      '') withCommunityModules}
+      '') (withCommunityModules ++ withOnlyInstalledCommunityModules)}
       wrapProgram $out/bin/prosody \
         --set LUA_PATH '${luaPath};' \
         --set LUA_CPATH '${luaCPath};'
@@ -59,11 +61,13 @@ stdenv.mkDerivation rec {
         --set LUA_CPATH '${luaCPath};'
     '';
 
+  passthru.communityModules = withCommunityModules;
+
   meta = {
     description = "Open-source XMPP application server written in Lua";
     license = licenses.mit;
     homepage = https://prosody.im;
     platforms = platforms.linux;
-    maintainers = [ ];
+    maintainers = with maintainers; [ fpletz globin ];
   };
 }