CI: create AppImage package (#5)

* Create linux.yml

* fix missing qtmultimedia5-dev

* Still need libqt5multimedia5-plugins for packaging

* Update thplayer.desktop

The executable program can either be specified with its full path or with the name of the executable only. If no full path is provided the executable is looked up in the $PATH environment variable used by the desktop environment.

* Update linux.yml

.github/workflows/linux.yml

@@ -0,0 +1,54 @@
+# This is a basic workflow to help you get started with Actions
+
+name: Linux Package
+
+# Controls when the action will run. 
+on:
+  # Triggers the workflow on push or pull request events but only for the master branch
+  push:
+    branches: [ master ]
+  pull_request:
+    branches: [ master ]
+
+  # Allows you to run this workflow manually from the Actions tab
+  workflow_dispatch:
+
+# A workflow run is made up of one or more jobs that can run sequentially or in parallel
+jobs:
+  # This workflow contains a single job called "build"
+  build:
+    # The type of runner that the job will run on
+    runs-on: ubuntu-latest
+
+    # Steps represent a sequence of tasks that will be executed as part of the job
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v2
+        with:
+          submodules: true
+
+      - name: Install build dept.
+        run: |
+          sudo apt update
+          sudo apt install qtbase5-dev qtmultimedia5-dev libqt5multimedia5-plugins
+
+      - name: Get linuxdeploy
+        run: |
+          wget https://github.com/linuxdeploy/linuxdeploy/releases/download/continuous/linuxdeploy-x86_64.AppImage
+          wget https://github.com/linuxdeploy/linuxdeploy-plugin-qt/releases/download/continuous/linuxdeploy-plugin-qt-x86_64.AppImage
+          chmod +x linuxdeploy-*.AppImage
+
+      - name: Build
+        working-directory: ./
+        run: qmake thplayer.pro && make -j$(nproc)
+
+      - name: Package
+        run: |
+          ./linuxdeploy-x86_64.AppImage --appdir AppDir -e thplayer -d assets/thplayer.desktop -i assets/thplayer.svg --icon-filename thplayer -p qt -o appimage
+          mv TouHou_Player*.AppImage thplayer-linux.AppImage
+
+      - name: Upload
+        uses: actions/upload-artifact@v2
+        with:
+          name: Linux-Build
+          path: thplayer-linux.AppImage

assets/thplayer.desktop

@@ -2,7 +2,7 @@
 [Desktop Entry]
 Type=Application
 Name=TouHou Player
-Exec=/usr/bin/thplayer
+Exec=thplayer
 Icon=thplayer
 Comment=Touhou BGM Player for all platform.
 Categories=Audio;AudioVideo;Qt;