Optimize CI configuration

.github/workflows/test_cpp_cmake.yml

@@ -1,20 +1,77 @@
 name: Test C++ programs
-#  source: https://github.com/actions/starter-workflows/pull/47
+
 on:
   - push
-  - pull_request
+    paths-ignore:
+    - 'epi_judge_java*/**'
+    - 'epi_judge_python*/**'
+  - pull_request:
+    - 'epi_judge_java*/**'
+    - 'epi_judge_python*/**'
 
 env:
   BUILD_TYPE: Debug
 
 jobs:
-  build:
+  fast_test:
+    name: Fast Test
+    runs-on: ubuntu-latest
+
+    strategy:
+      matrix:
+        mode: [stub, solution]
+        include:
+          - mode: stub
+            folder: epi_judge_cpp
+          - mode: solution
+            folder: epi_judge_cpp_solutions
+
+    steps:
+    - uses: actions/checkout@v1
 
+    - name: Set up Python 3.7
+      uses: actions/setup-python@v1
+      with:
+        python-version: 3.7
+
+    - name: Install dependencies
+      run: |
+        python -m pip install --upgrade pip
+        pip install click
+
+    - name: Create Build Environment
+      # Some projects don't allow in-source building, so create a separate build directory
+      # We'll use this as our working directory for all subsequent commands
+      run: cmake -E make_directory ${{runner.workspace}}/build
+
+    - name: Configure CMake
+      # Use a bash shell so we can use the same syntax for environment variable
+      # access regardless of the host operating system
+      shell: bash
+      working-directory: ${{runner.workspace}}/build
+      # Note the current convention is to use the -S and -B options here to specify source
+      # and build directories, but this is only available with CMake 3.13 and higher.
+      # The CMake binaries on the Github Actions machines are (as of this writing) 3.12
+      run: cmake $GITHUB_WORKSPACE/${{matrix.folder}} -DCMAKE_BUILD_TYPE=$BUILD_TYPE
+
+    - name: Build
+      working-directory: ${{runner.workspace}}/build
+      shell: bash
+      run: cmake --build . --config $BUILD_TYPE -- -j 8
+
+    - name: Test
+      shell: bash
+      run: python epijudge_ci_test_tool.py --build-dir ${{runner.workspace}}/build cpp ${{matrix.mode}} .
+
+  - full_test:
+    name: Full Test
+    needs: fast_test
     runs-on: ${{ matrix.os }}
+
     strategy:
-      max-parallel: 1
+      max-parallel: 2
       matrix:
-        os: [ubuntu-latest, macOS-latest, windows-latest]
+        os: [windows-latest, macOS-latest]
         mode: [stub, solution]
         include:
           - mode: stub
@@ -51,10 +108,20 @@ jobs:
       run: cmake $GITHUB_WORKSPACE/${{matrix.folder}} -DCMAKE_BUILD_TYPE=$BUILD_TYPE
 
     - name: Build
+      if: runner.os == 'macOS'
       working-directory: ${{runner.workspace}}/build
       shell: bash
       run: cmake --build . --config $BUILD_TYPE -- -j 8
 
+    - name: Build Windows
+      # Windows doesn't support -j switch
+      if: runner.os == 'Windows'
+      working-directory: ${{runner.workspace}}/build
+      shell: bash
+      run: cmake --build . --config $BUILD_TYPE --
+
     - name: Test
+      # Mac build should be identical to ubuntu, skip to save resources
+      if: runner.os == 'Windows'
       shell: bash
       run: python epijudge_ci_test_tool.py --build-dir ${{runner.workspace}}/build cpp ${{matrix.mode}} .

.github/workflows/test_java_make.yml

@@ -2,14 +2,19 @@ name: Run Java programs
 
 on: 
   - push
-  - pull_request
+    paths-ignore:
+    - 'epi_judge_cpp*/**'
+    - 'epi_judge_python*/**'
+  - pull_request:
+    - 'epi_judge_cpp*/**'
+    - 'epi_judge_python*/**'
 
 jobs:
-  build:
-
+  fast_test:
+    name: Fast test
     runs-on: ubuntu-latest
+
     strategy:
-      max-parallel: 2
       matrix:
         mode: [stub, solution]
         include:
@@ -37,3 +42,37 @@ jobs:
       run: make -C ${{ matrix.folder }} all
     - name: Test 
       run: python epijudge_ci_test_tool.py java ${{ matrix.mode }} .
+
+  full_test:
+    name: Full test
+    needs: fast_test
+    runs-on: windows-latest
+
+    strategy:
+      matrix:
+        mode: [stub, solution]
+        include:
+          - mode: stub
+            folder: epi_judge_java
+          - mode: solution
+            folder: epi_judge_java_solutions
+
+    steps:
+    - uses: actions/checkout@v1
+    - name: Set up Python 3.7
+      uses: actions/setup-python@v1
+      with:
+        python-version: 3.7
+    - name: Set up Java 11
+      uses: actions/setup-java@v1
+      with:
+        java-version: '11.0.4'
+        java-package: jdk
+    - name: Install dependencies
+      run: |
+        python -m pip install --upgrade pip
+        pip install click
+    - name: Compile
+      run: make -C ${{ matrix.folder }} all
+    - name: Test 
+      run: python epijudge_ci_test_tool.py java ${{ matrix.mode }} .  

.github/workflows/test_python.yml

@@ -2,14 +2,47 @@ name: Run Python programs
 
 on: 
   - push
-  - pull_request
+    paths-ignore:
+    - 'epi_judge_cpp*/**'
+    - 'epi_judge_java*/**'
+  - pull_request:
+    - 'epi_judge_cpp*/**'
+    - 'epi_judge_java*/**'
 
 jobs:
-  build:
-
+  fast_test:
+    name: Fast test
     runs-on: ubuntu-latest
+
+    strategy:
+      max-parallel: 2
+      matrix:
+        python-version: [3.6, 3.8]
+
+    steps:
+    - uses: actions/checkout@v1
+    - name: Set up Python ${{ matrix.python-version }}
+      uses: actions/setup-python@v1
+      with:
+        python-version: ${{ matrix.python-version }}
+    - name: Install dependencies
+      run: |
+        python -m pip install --upgrade pip
+        pip install bintrees click
+    - name: Test stubs
+      run: | 
+        python epijudge_ci_test_tool.py python stub .
+    - name: Test solutions
+      run: | 
+        python epijudge_ci_test_tool.py python solution .
+  
+  full_test:
+    name: Full Test
+    needs: fast_test
+    runs-on: windows-latest
+
     strategy:
-      max-parallel: 4
+      max-parallel: 2
       matrix:
         python-version: [3.6, 3.7, 3.8]