pitivi: 0.95 -> 0.96 (fixes startup error) (#17228)

* pitivi: 0.95 -> 0.96 (fixes startup error)

The upgrade of gtk3 to v3.20 broke pitivi, causing it to segfault after
the user closes the Welcome dialog. This release fixes that.

New dependencies: gst-transcoder and dbus.
(pitivi imports dbus if it finds the GNOME_DESKTOP_SESSION_ID
environment variable. Without dbus there will be some ugly errors for
GNOME desktop users.)

* pitivi: use wrapGAppsHook instead of makeWrapper

Allows us to remove preFixup.

* pitivi: move meta section to the end

Like most Nix package files are written.

pkgs/applications/video/pitivi/default.nix

@@ -1,18 +1,51 @@
-{ stdenv, fetchurl, pkgconfig, intltool, itstool, makeWrapper
+{ stdenv, fetchurl, pkgconfig, intltool, itstool, wrapGAppsHook
 , python3Packages, gst, gtk3, hicolor_icon_theme
 , gobjectIntrospection, librsvg, gnome3, libnotify
+# for gst-transcoder:
+, which, meson, ninja
 }:
 
 let
-  version = "0.95";
+  version = "0.96";
+
+  # gst-transcoder will eventually be merged with gstreamer (according to
+  # gst-transcoder 1.8.0 release notes). For now the only user is pitivi so we
+  # don't bother exposing the package to all of nixpkgs.
+  gst-transcoder = stdenv.mkDerivation rec {
+    name = "gst-transcoder-1.8.0";
+    src = fetchurl {
+      name = "${name}.tar.gz";
+      url = "https://github.com/pitivi/gst-transcoder/archive/1.8.0.tar.gz";
+      sha256 = "0iggr6idmp7cmfsf6pkhfl3jq1bkga37jl5prbcl1zapkzi26fg6";
+    };
+    buildInputs = [ which meson ninja pkgconfig gobjectIntrospection ]
+      ++ (with gst; [ gstreamer gst-plugins-base ]);
+  };
+
 in stdenv.mkDerivation rec {
   name = "pitivi-${version}";
 
   src = fetchurl {
     url = "mirror://gnome/sources/pitivi/${version}/${name}.tar.xz";
-    sha256 = "04ykw619aikhxk5wj7z44pvwl52053d1kamcxpscw0ixrh5j45az";
+    sha256 = "115d37mvi32yds8gqj2yidkk6pap7szavhjf2hw0388ynydlc2zs";
   };
 
+  nativeBuildInputs = [ pkgconfig intltool itstool wrapGAppsHook ];
+
+  buildInputs = [
+    gobjectIntrospection gtk3 librsvg gnome3.gnome_desktop
+    gnome3.defaultIconTheme
+    gnome3.gsettings_desktop_schemas libnotify
+    gst-transcoder
+  ] ++ (with gst; [
+    gstreamer gst-editing-services
+    gst-plugins-base gst-plugins-good
+    gst-plugins-bad gst-plugins-ugly gst-libav gst-validate
+  ]) ++ (with python3Packages; [
+    python pygobject3 gst-python pyxdg numpy pycairo sqlite3 matplotlib
+    dbus
+  ]);
+
   meta = with stdenv.lib; {
     description = "Non-Linear video editor utilizing the power of GStreamer";
     homepage    = "http://pitivi.org/";
@@ -24,26 +57,4 @@ in stdenv.mkDerivation rec {
     license     = licenses.lgpl21Plus;
     platforms   = platforms.linux;
   };
-
-  nativeBuildInputs = [ pkgconfig intltool itstool makeWrapper ];
-
-  buildInputs = [
-    gobjectIntrospection gtk3 librsvg gnome3.gnome_desktop
-    gnome3.defaultIconTheme
-    gnome3.gsettings_desktop_schemas libnotify
-  ] ++ (with gst; [
-    gstreamer gst-editing-services
-    gst-plugins-base gst-plugins-good
-    gst-plugins-bad gst-plugins-ugly gst-libav gst-validate
-  ]) ++ (with python3Packages; [
-    python pygobject3 gst-python pyxdg numpy pycairo sqlite3 matplotlib
-  ]);
-
-  preFixup = ''
-    wrapProgram "$out/bin/pitivi" \
-      --set GDK_PIXBUF_MODULE_FILE "$GDK_PIXBUF_MODULE_FILE" \
-      --prefix GI_TYPELIB_PATH : "$GI_TYPELIB_PATH" \
-      --prefix GST_PLUGIN_SYSTEM_PATH_1_0 : "$GST_PLUGIN_SYSTEM_PATH_1_0" \
-      --prefix XDG_DATA_DIRS : "$XDG_ICON_DIRS:$out/share:$GSETTINGS_SCHEMAS_PATH"
-  '';
 }