kservice: propagate service providers

pkgs/development/libraries/kde-frameworks-5.15/kservice/default.nix

@@ -4,9 +4,11 @@
 
 kdeFramework {
   name = "kservice";
+  setupHook = ./setup-hook.sh;
   nativeBuildInputs = [ extra-cmake-modules kdoctools ];
-  buildInputs = [ kcoreaddons kcrash kdbusaddons ];
+  buildInputs = [ kcrash kdbusaddons ];
-  propagatedBuildInputs = [ kconfig ki18n kwindowsystem ];
+  propagatedBuildInputs = [ kconfig kcoreaddons ki18n kwindowsystem ];
+  propagatedUserEnvPkgs = [ kcoreaddons ];
   patches = [
     ./0001-qdiriterator-follow-symlinks.patch
     ./0002-no-canonicalize-path.patch

pkgs/development/libraries/kde-frameworks-5.15/kservice/setup-hook.sh

@@ -0,0 +1,43 @@
+addServicePkg() {
+    local propagated
+    for dir in "share/kservices5" "share/kservicetypes5"; do
+        if [[ -d "$1/$dir" ]]; then
+            propagated=
+            for pkg in $propagatedBuildInputs; do
+                if [[ "z$pkg" == "z$1" ]]; then
+                    propagated=1
+                    break
+                fi
+            done
+            if [[ -z $propagated ]]; then
+                propagatedBuildInputs="$propagatedBuildInputs $1"
+            fi
+
+            propagated=
+            for pkg in $propagatedUserEnvPkgs; do
+                if [[ "z$pkg" == "z$1" ]]; then
+                    propagated=1
+                    break
+                fi
+            done
+            if [[ -z $propagated ]]; then
+                propagatedUserEnvPkgs="$propagatedUserEnvPkgs $1"
+            fi
+
+            break
+        fi
+    done
+}
+
+envHooks+=(addServicePkg)
+
+local propagated
+for pkg in $propagatedBuildInputs; do
+    if [[ "z$pkg" == "z@out@" ]]; then
+        propagated=1
+        break
+    fi
+done
+if [[ -z $propagated ]]; then
+    propagatedBuildInputs="$propagatedBuildInputs @out@"
+fi