Session rewrite: Generate pantheon.session and autostarts

.github/workflows/main.yml

@@ -6,18 +6,30 @@ jobs:
   build:
 
     runs-on: ubuntu-latest
-    
+
     container:
       image: elementary/docker:unstable
-    
+
     steps:
     - uses: actions/checkout@v1
     - name: Install Dependencies
       run: |
         apt update
-        apt install -y meson
+        apt install -y meson pkg-config gnome-settings-daemon gnome-settings-daemon-dev onboard gnome-keyring orca
     - name: Build
       run: |
         meson build
         ninja -C build
         ninja -C build install
+
+  build-nix:
+
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v2
+      - name: Nix
+        uses: cachix/install-nix-action@v8
+      - name: Build
+        run: 'nix-build --quiet -I nixpkgs=channel:20.03'

default.nix

@@ -0,0 +1,39 @@
+{ pkgs ? import <nixpkgs> { config = {}; overlays = []; }
+}:
+
+with pkgs;
+
+stdenv.mkDerivation rec {
+  name = "elementary-session-settings";
+
+  src = stdenv.lib.cleanSource ./.;
+
+  nativeBuildInputs = [
+    desktop-file-utils
+    meson
+    ninja
+    pkg-config
+  ];
+
+  buildInputs = [
+    pantheon.elementary-settings-daemon
+    gnome3.gnome-keyring
+    onboard
+    orca
+  ];
+
+  mesonFlags = [
+    "-Dmimeapps-list=false"
+    "-Dfallback-session=GNOME"
+    "-Ddetect-program-prefixes=true"
+    "--sysconfdir=${placeholder "out"}/etc"
+  ];
+
+  meta = with stdenv.lib; {
+    description = "Session settings for elementary";
+    homepage = https://github.com/elementary/session-settings;
+    license = licenses.lgpl3;
+    platforms = platforms.linux;
+    maintainers = pantheon.maintainers;
+  };
+}

meson.build

@@ -9,6 +9,5 @@ if get_option('mimeapps-list')
     subdir('applications')
 endif
 
-subdir('autostart')
-subdir('gnome-session')
+subdir('session')
 subdir('xsessions')

meson_options.txt

@@ -1,11 +1,8 @@
 option('mimeapps-list', type : 'boolean', value: true,
        description : 'Install Pantheon default mimetype associations')
 
-option('patched-gsd-autostarts', type : 'boolean', value: true,
-       description : 'Install patched GNOME Settings Daemon autostarts')
-
-option('patched-ubuntu-autostarts', type : 'boolean', value: true,
-       description : 'Install patched Ubuntu autostarts')
-
 option('fallback-session', type : 'string', value: 'ubuntu',
        description : 'Fallback session to use for Pantheon')
+
+option('detect-program-prefixes', type: 'boolean', value: false,
+       description : 'This is needed for platforms that install packages into individual prefixes (like Guix System or NixOS')