coverage: Enable coverage reports

Author: mensinda

Diff for: .coveragerc

@@ -68,13 +68,13 @@ jobs:
       - name: Run pip
         run: |
           export PATH=/usr/bin:/usr/local/bin:$(cygpath ${SYSTEMROOT})/system32
-          python3 -m pip --disable-pip-version-check install gcovr jsonschema pefile pytest pytest-xdist
+          python3 -m pip --disable-pip-version-check install gcovr jsonschema pefile pytest pytest-xdist coverage codecov
         shell: C:\cygwin\bin\bash.exe --noprofile --norc -o igncr -eo pipefail '{0}'
 
       - name: Run tests
         run: |
           export PATH=/usr/bin:/usr/local/bin:$(cygpath ${SYSTEMROOT})/system32
-          python3 run_tests.py --backend=ninja
+          python3 ./tools/run_with_cov.py run_tests.py --backend=ninja
         env:
           # Cygwin's static boost installation is broken (some static library
           # variants such as boost_thread are not present)
@@ -87,3 +87,6 @@ jobs:
           path: meson-test-run.*
         # test log should be saved on failure
         if: ${{ !cancelled() }}
+
+      - name: Upload coverage report
+        run: ./ci/upload_cov.sh "${{ matrix.NAME }}"

Diff for: .github/workflows/cygwin.yml

@@ -24,7 +24,7 @@ jobs:
         python-version: '3.x'
     - run: |
         python -m pip install --upgrade pip
-        python -m pip install pytest pytest-xdist jsonschema
+        python -m pip install pytest pytest-xdist jsonschema coverage codecov
     - run: brew install pkg-config ninja llvm qt@5
     - env:
         CPPFLAGS: "-I/usr/local/include"
@@ -35,7 +35,10 @@ jobs:
         export SDKROOT="$(xcodebuild -version -sdk macosx Path)"
         export PATH="$HOME/tools:/usr/local/opt/qt@5/bin:$PATH:$(brew --prefix llvm)/bin"
         export PKG_CONFIG_PATH="/usr/local/opt/qt@5/lib/pkgconfig:$PKG_CONFIG_PATH"
-        ./run_unittests.py
+        ./tools/run_with_cov.py ./run_unittests.py
+    - name: Upload coverage report
+      run: ./ci/upload_cov.sh "appleclang [unit tests]"
+
 
   project-tests-appleclang:
     runs-on: macos-latest
@@ -50,7 +53,7 @@ jobs:
     - run: |
         python3 -m pip install --upgrade setuptools
         python3 -m pip install --upgrade pip
-        python3 -m pip install cython
+        python3 -m pip install cython coverage codecov
     - env:
         CPPFLAGS: "-I/usr/local/include"
         LDFLAGS: "-L/usr/local/lib"
@@ -61,7 +64,9 @@ jobs:
         export SDKROOT="$(xcodebuild -version -sdk macosx Path)"
         export PATH="$HOME/tools:/usr/local/opt/qt@5/bin:$PATH:$(brew --prefix llvm)/bin"
         export PKG_CONFIG_PATH="/usr/local/opt/qt@5/lib/pkgconfig:$PKG_CONFIG_PATH"
-        ./run_project_tests.py --backend=ninja
+        ./tools/run_with_cov.py ./run_project_tests.py --backend=ninja
+    - name: Upload coverage report
+      run: ./ci/upload_cov.sh "appleclang [project tests; unity=${{ matrix.unity }}]"
 
   Qt4macos:
     runs-on: macos-latest

Diff for: .github/workflows/macos.yml

@@ -71,7 +71,7 @@ jobs:
 
       - name: Install dependencies
         run: |
-          python3 -m pip --disable-pip-version-check install gcovr jsonschema pefile pytest pytest-xdist
+          python3 -m pip --disable-pip-version-check install gcovr jsonschema pefile pytest pytest-xdist coverage codecov
 
       - name: Run Tests
         run: |
@@ -89,9 +89,12 @@ jobs:
             pacman --noconfirm --needed -S mingw-w64-${{ matrix.MSYS2_ARCH }}-${{ matrix.MSYS2_CURSES }}
           fi
 
-          MSYSTEM= python3 run_tests.py --backend=ninja
+          MSYSTEM= python3 ./tools/run_with_cov.py run_tests.py --backend=ninja
 
       - uses: actions/upload-artifact@v2
         with:
           name: ${{ matrix.NAME }}
           path: meson-test-run.*
+
+      - name: Upload coverage report
+        run: ./ci/upload_cov.sh "${{ matrix.NAME }}"

Diff for: .github/workflows/msys2.yml

@@ -26,6 +26,9 @@ jobs:
     - run: |
         apt-get -y purge clang gcc gdc
         apt-get -y autoremove
+        python3 -m pip install coverage codecov
     - uses: actions/checkout@v2
     - name: Run tests
-      run: bash -c 'source /ci/env_vars.sh; cd $GITHUB_WORKSPACE; ./run_tests.py $CI_ARGS --cross ubuntu-armhf.json --cross-only'
+      run: bash -c 'source /ci/env_vars.sh; cd $GITHUB_WORKSPACE; ./tools/run_with_cov.py ./run_tests.py $CI_ARGS --cross ubuntu-armhf.json --cross-only'
+    - name: Upload coverage report
+      run: ./ci/upload_cov.sh "Ubuntu nonnative"

Diff for: .github/workflows/nonative.yml

@@ -40,7 +40,9 @@ jobs:
       # All environment variables are stored inside the docker image in /ci/env_vars.sh
       # They are defined in the `env` section in each image.json. CI_ARGS should be set
       # via the `args` array ub the image.json
-      run: bash -c 'source /ci/env_vars.sh; cd $GITHUB_WORKSPACE; ./run_tests.py $CI_ARGS'
+      run: bash -c 'source /ci/env_vars.sh; cd $GITHUB_WORKSPACE; ./tools/run_with_cov.py ./run_tests.py $CI_ARGS'
+    - name: Upload coverage report
+      run: ./ci/upload_cov.sh "OS Comp [${{ matrix.cfg.name }}]"
 
   ubuntu-rolling:
     name: 'Ubuntu Rolling'
@@ -106,4 +108,7 @@ jobs:
           update-alternatives --set i686-w64-mingw32-gcc   /usr/bin/i686-w64-mingw32-gcc-posix
           update-alternatives --set i686-w64-mingw32-g++   /usr/bin/i686-w64-mingw32-g++-posix
 
-          ./run_tests.py $RUN_TESTS_ARGS -- $MESON_ARGS
+          ./tools/run_with_cov.py ./run_tests.py $RUN_TESTS_ARGS -- $MESON_ARGS
+
+      - name: Upload coverage report
+        run: ./ci/upload_cov.sh "Ubuntu [${{ matrix.cfg.CC }} ${{ matrix.cfg.RUN_TESTS_ARGS }} ${{ matrix.cfg.MESON_ARGS }}]"

Diff for: .github/workflows/os_comp.yml

@@ -45,7 +45,10 @@ jobs:
       run: |
         sudo apt update -yq
         sudo apt install -yq --no-install-recommends g++ gfortran ninja-build gobjc gobjc++
-    - run: python run_project_tests.py --only cmake common fortran platform-linux "objective c" "objective c++"
+        python -m pip install coverage codecov
+    - run: ./tools/run_with_cov.py run_project_tests.py --only cmake common fortran platform-linux "objective c" "objective c++"
+    - name: Upload coverage report
+      run: ./ci/upload_cov.sh "UnusedMissingReturn"
 
   windows:
     runs-on: windows-latest
@@ -55,10 +58,13 @@ jobs:
       with:
         python-version: '3.x'
 
-    - run: pip install ninja pefile
+    - run: pip install ninja pefile coverage codecov
 
-    - run: python run_project_tests.py --only platform-windows
+    - run: python ./tools/run_with_cov.py run_project_tests.py --only platform-windows
       env:
         CC: gcc
         CXX: g++
         FC: gfortran
+
+    - name: Upload coverage report
+      run: ./ci/upload_cov.sh "UnusedMissingReturn Windows"

Diff for: .github/workflows/unusedargs_missingreturn.yml

@@ -8,7 +8,8 @@
 /.vscode
 
 __pycache__
-.coverage
+/.coverage/
+/.coveragerc
 /install dir
 /work area
 

Diff for: .gitignore

@@ -9,6 +9,7 @@ trigger:
 
 variables:
   CI: 1
+  SOURCE_VERSION: $(Build.SourceVersion)
 
 jobs:
 

Diff for: azure-pipelines.yml

@@ -68,11 +68,26 @@ python --version
 
 # Needed for running unit tests in parallel.
 echo ""
-python -m pip --disable-pip-version-check install --upgrade pefile pytest-xdist jsonschema
+python -m pip --disable-pip-version-check install --upgrade pefile pytest-xdist jsonschema coverage
 
 echo ""
 echo "=== Start running tests ==="
 # Starting from VS2019 Powershell(?) will fail the test run
 # if it prints anything to stderr. Python's test runner
 # does that by default so we need to forward it.
-cmd /c "python 2>&1 run_tests.py --backend $env:backend $env:extraargs"
+cmd /c "python 2>&1 ./tools/run_with_cov.py  run_tests.py --backend $env:backend $env:extraargs"
+
+echo ""
+echo ""
+echo "=== Gathering coverage report ==="
+echo ""
+
+python3 -m coverage combine
+python3 -m coverage xml
+python3 -m coverage report
+
+# Currently codecov.py does not handle Azure, use this fork of a fork to get it
+# working without requireing a token
+git clone https://github.com/mensinda/codecov-python
+python3 -m pip install --ignore-installed ./codecov-python
+python3 -m codecov -f .coverage/coverage.xml -n "VS$env:compiler $env:arch $env:backend" -c $env:SOURCE_VERSION

Diff for: ci/run.ps1

@@ -0,0 +1,13 @@
+#!/bin/bash
+
+echo "Combining coverage reports..."
+coverage combine
+
+echo "Generating XML report..."
+coverage xml
+
+echo "Printing report"
+coverage report
+
+echo "Uploading to codecov..."
+codecov -f .coverage/coverage.xml -n "$1"

Diff for: ci/upload_cov.sh

@@ -0,0 +1,19 @@
+# Copyright 2021 The Meson development team
+
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+
+#     http://www.apache.org/licenses/LICENSE-2.0
+
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+# This script is used by coverage (see tools/run_with_cov.py) to enable coverage
+# reports in python subprocesses
+
+import coverage
+coverage.process_startup()

Diff for: ci/usercustomize.py

@@ -0,0 +1,25 @@
+[run]
+branch      = True
+parallel    = True
+concurrency = multiprocessing
+data_file   = @ROOT@/.coverage/coverage
+source      = @ROOT@/mesonbuild/
+
+[report]
+exclude_lines =
+  if T.TYPE_CHECKING:
+
+[paths]
+mesonbuild =
+    mesonbuild/
+    __w/meson/meson/mesonbuild/
+    @ROOT@/mesonbuild/
+
+[html]
+directory = @ROOT@/.coverage/html
+
+[xml]
+output    = @ROOT@/.coverage/coverage.xml
+
+[json]
+output    = @ROOT@/.coverage/coverage.json