feat: add flatpak builds to the ci for testing

Signed-off-by: DioEgizio <83089242+DioEgizio@users.noreply.github.com>

.github/workflows/build.yml

@@ -492,16 +492,35 @@ jobs:
           submodules: 'true'
       - name: Set short version
         shell: bash
+        if: inputs.build_type == 'Debug'
         run: |
           ver_short=`git rev-parse --short HEAD`
           echo "VERSION=$ver_short" >> $GITHUB_ENV
       - name: Package Snap (Linux)
         id: snapcraft
-        if: runner.os == 'Linux' && inputs.build_type == 'Debug'
+        if: inputs.build_type == 'Debug'
         uses: snapcore/action-build@v1
       - name: Upload Snap (Linux)
-        if: runner.os == 'Linux' && inputs.build_type == 'Debug'
+        if: inputs.build_type == 'Debug'
         uses: actions/upload-artifact@v3
         with:
           name: prismlauncher_${{ env.VERSION }}_amd64.snap
           path: ${{ steps.snapcraft.outputs.snap }}
+
+  flatpak:
+    runs-on: ubuntu-latest
+    container:
+      image: bilelmoussaoui/flatpak-github-actions:kde-5.15-22.08
+      options: --privileged
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v3
+        if: inputs.build_type == 'Debug'
+        with:
+          submodules: 'true'
+      - name: Build Flatpak (Linux)
+        if: inputs.build_type == 'Debug'
+        uses: flatpak/flatpak-github-actions/flatpak-builder@v4
+        with:
+          bundle: "Prism Launcher.flatpak"
+          manifest-path: flatpak/org.prismlauncher.PrismLauncher.yml 

flatpak/org.prismlauncher.PrismLauncher.yml

@@ -0,0 +1,83 @@
+id: org.prismlauncher.PrismLauncher
+runtime: org.kde.Platform
+runtime-version: "5.15-22.08"
+sdk: org.kde.Sdk
+sdk-extensions:
+  - org.freedesktop.Sdk.Extension.openjdk17
+  - org.freedesktop.Sdk.Extension.openjdk8
+add-extensions:
+  com.valvesoftware.Steam.Utility.gamescope:
+    version: stable
+    add-ld-path: lib
+    no-autodownload: true
+    autodelete: false
+    directory: utils/gamescope
+
+command: prismlauncher
+finish-args:
+  - --share=ipc
+  - --socket=x11
+  - --socket=wayland
+  - --device=all
+  - --share=network
+  - --socket=pulseaudio
+    # for Discord RPC mods
+  - --filesystem=xdg-run/app/com.discordapp.Discord:create
+    # Mod drag&drop
+  - --filesystem=xdg-download:ro
+
+modules:
+  - name: prismlauncher
+    buildsystem: cmake-ninja
+    config-opts:
+      - -DLauncher_BUILD_PLATFORM=flatpak
+      - -DCMAKE_BUILD_TYPE=Debug
+    build-options:
+      env:
+        JAVA_HOME: /usr/lib/sdk/openjdk17/jvm/openjdk-17
+        JAVA_COMPILER: /usr/lib/sdk/openjdk17/jvm/openjdk-17/bin/javac
+    sources:
+        - type: dir
+          path: ../
+  - name: openjdk
+    buildsystem: simple
+    build-commands:
+      - mkdir -p /app/jdk/
+      - /usr/lib/sdk/openjdk17/install.sh
+      - mv /app/jre /app/jdk/17
+      - /usr/lib/sdk/openjdk8/install.sh
+      - mv /app/jre /app/jdk/8
+    cleanup: [/jre]
+  - name: xrandr
+    buildsystem: autotools
+    sources:
+      - type: archive
+        url: https://xorg.freedesktop.org/archive/individual/app/xrandr-1.5.1.tar.xz
+        sha256: 7bc76daf9d72f8aff885efad04ce06b90488a1a169d118dea8a2b661832e8762
+    cleanup: [/share/man, /bin/xkeystone]
+  - name: gamemode
+    buildsystem: meson
+    config-opts:
+      - -Dwith-sd-bus-provider=no-daemon
+      - -Dwith-examples=false
+    post-install:
+      # gamemoderun is installed for users who want to use wrapper commands
+      # post-install is running inside the build dir, we need it from the source though
+      - install -Dm755 ../data/gamemoderun -t /app/bin
+    sources:
+      - type: git
+        url: https://github.com/FeralInteractive/gamemode
+        tag: "1.7"
+        commit: 4dc99dff76218718763a6b07fc1900fa6d1dafd9
+  - name: enhance
+    buildsystem: simple
+    build-commands:
+      - mkdir -p /app/utils/gamescope
+      - install -Dm755 prime-run /app/bin/prime-run
+      - mv /app/bin/prismlauncher /app/bin/prismrun
+      - install -Dm755 prismlauncher /app/bin/prismlauncher
+    sources:
+      - type: file
+        path: ../flatpak/prime-run
+      - type: file
+        path: ../flatpak/prismlauncher

flatpak/prime-run

@@ -0,0 +1,4 @@
+#!/bin/sh
+
+export __NV_PRIME_RENDER_OFFLOAD=1 __VK_LAYER_NV_optimus=NVIDIA_only __GLX_VENDOR_LIBRARY_NAME=nvidia
+exec "$@"

flatpak/prismlauncher

@@ -0,0 +1,11 @@
+#!/bin/bash
+
+# discord RPC
+for i in {0..9}; do
+    test -S "$XDG_RUNTIME_DIR"/discord-ipc-"$i" || ln -sf {app/com.discordapp.Discord,"$XDG_RUNTIME_DIR"}/discord-ipc-"$i";
+done
+
+export PATH="${PATH}${PATH:+:}/app/utils/gamescope/bin:/usr/lib/extensions/vulkan/MangoHud/bin"
+export LD_LIBRARY_PATH="${LD_LIBRARY_PATH}${LD_LIBRARY_PATH:+:}/usr/lib/extensions/vulkan/MangoHud/\$LIB/"
+
+exec /app/bin/prismrun "$@"