Merge pull request #68470 from acowley/kdenlive-mlt

kdenlive: Avoid exposing configurable paths to melt

pkgs/applications/kde/kdenlive.nix

@@ -70,10 +70,13 @@ mkDerivation {
     kpurpose
     kdeclarative
   ];
+  patches = [ ./mlt-path.patch ];
+  inherit mlt;
   postPatch =
     # Module Qt5::Concurrent must be included in `find_package` before it is used.
     ''
       sed -i CMakeLists.txt -e '/find_package(Qt5 REQUIRED/ s|)| Concurrent)|'
+      substituteAllInPlace src/kdenlivesettings.kcfg
     '';
   meta = {
     license = with lib.licenses; [ gpl2Plus ];

pkgs/applications/kde/mlt-path.patch

@@ -0,0 +1,22 @@
+diff -ruN old/src/kdenlivesettings.kcfg new/src/kdenlivesettings.kcfg
+--- old/src/kdenlivesettings.kcfg	2019-09-10 23:20:27.555392353 -0400
++++ new/src/kdenlivesettings.kcfg	2019-09-10 23:25:47.533964155 -0400
+@@ -378,14 +378,14 @@
+ </group>
+ 
+   <group name="env">
+-    <entry name="mltpath" type="Path">
++    <entry name="mltpath" type="Path" hidden="true">
+       <label>Mlt framework install path.</label>
+-      <default></default>
++      <default>@mlt@/share/mlt/profiles</default>
+     </entry>
+ 
+-    <entry name="rendererpath" type="Path">
++    <entry name="rendererpath" type="Path" hidden="true">
+       <label>Mlt melt renderer install path.</label>
+-      <default></default>
++      <default>@mlt@/bin/melt</default>
+     </entry>
+ 
+     <entry name="ffmpegpath" type="Path">