Add github CI action.

Author: SiegeLordEx

.github/workflows/continuous-integration.yml

@@ -0,0 +1,48 @@
+name: Tests
+on: [push, pull_request]
+
+jobs:
+    test:
+        name: Ubuntu tests
+        runs-on: ubuntu-latest
+        steps:
+            - name: Checkout
+              uses: actions/checkout@v1
+              with:
+                  fetch-depth: 1
+            - name: Setup
+              run: |
+                  sudo apt-get update
+                  sudo apt-get install -y xvfb libvorbis-dev libtheora-dev libwebp-dev libphysfs-dev libopusfile-dev libdumb1-dev libflac-dev libpulse-dev libgtk2.0-dev pandoc libcurl4-nss-dev libenet-dev pulseaudio libasound2-dev libopenal-dev libgl1-mesa-dev libglu-dev;
+                  mkdir build
+                  cd build
+                  . ../tests/grab_bitmap_suites.sh
+            - name: Configure
+              run: |
+                  cd build
+                  cmake .. -DCMAKE_BUILD_TYPE=Debug -DWANT_SHADERS_GL=on -DWANT_CURL_EXAMPLE=on
+            - name: Build
+              run: |
+                  cd build
+                  make -j2
+            - name: Run test_driver
+              run: |
+                  cd build
+                  find ../tests -name '*.ini' | grep -v 'compressed' | xargs xvfb-run tests/test_driver --save_on_failure --xvfb | tee /tmp/test_out || true
+                  mkdir -p test_outputs
+                  mv *.png test_outputs
+                  grep -q 'failed tests: 0' /tmp/test_out
+            - name: Upload artifacts
+              if: failure()
+              uses: actions/upload-artifact@v1
+              with:
+                  name: bitmaps
+                  path: build/test_outputs
+            - name: Run install_test
+              run: |
+                  cd build
+                  sudo make install
+                  sudo ldconfig
+                  gcc ../misc/install_test.c -o install_test $(pkg-config --cflags --libs allegro_image-debug-5 allegro_ttf-debug-5 allegro_acodec-debug-5 allegro_dialog-debug-5 allegro_primitives-debug-5 allegro_video-debug-5)
+                  pulseaudio -D
+                  xvfb-run ./install_test