ci: combine coverage reports

Based on https://hynek.me/articles/ditch-codecov-python/

.github/workflows/vocoder_tests.yml

@@ -7,7 +7,7 @@ on:
   pull_request:
     types: [opened, synchronize, reopened]
 jobs:
-  test:
+  vocoder-tests:
     runs-on: ubuntu-latest
     strategy:
       fail-fast: false
@@ -40,3 +40,30 @@ jobs:
           python3 setup.py egg_info
       - name: Unit tests
         run: make test_vocoder
+      - name: Upload coverage data
+        uses: actions/upload-artifact@v4
+        with:
+          name: coverage-data-${{ github.job }}-${{ matrix.python-version }}
+          path: .coverage.*
+          if-no-files-found: ignore
+  coverage:
+    if: always()
+    needs: vocoder-tests
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - uses: actions/setup-python@v5
+        with:
+          python-version: "3.11"
+      - uses: actions/download-artifact@v4
+        with:
+          pattern: coverage-data-*
+          merge-multiple: true
+      - name: Combine coverage
+        run: |
+          python -Im pip install --upgrade coverage[toml]
+
+          python -Im coverage combine
+          python -Im coverage html --skip-covered --skip-empty
+
+          python -Im coverage report --format=markdown >> $GITHUB_STEP_SUMMARY

Makefile

@@ -11,38 +11,38 @@ test_all:	## run tests and don't stop on an error.
 	./run_bash_tests.sh
 
 test:	## run tests.
-	nose2 -F -v -B --with-coverage --coverage TTS tests
+	coverage run -m nose2 -F -v -B tests
 
 test_vocoder:	## run vocoder tests.
-	nose2 -F -v -B --with-coverage --coverage TTS tests.vocoder_tests
+	coverage run -m nose2 -F -v -B tests.vocoder_tests
 
 test_tts:	## run tts tests.
-	nose2 -F -v -B --with-coverage --coverage TTS tests.tts_tests
+	coverage run -m nose2 -F -v -B tests.tts_tests
 
 test_tts2:	## run tts tests.
-	nose2 -F -v -B --with-coverage --coverage TTS tests.tts_tests2
+	coverage run -m nose2 -F -v -B tests.tts_tests2
 
 test_xtts:
-	nose2 -F -v -B --with-coverage --coverage TTS tests.xtts_tests
+	coverage run -m nose2 -F -v -B tests.xtts_tests
 
 test_aux:	## run aux tests.
-	nose2 -F -v -B --with-coverage --coverage TTS tests.aux_tests
+	coverage run -m nose2 -F -v -B tests.aux_tests
 	./run_bash_tests.sh
 
 test_zoo:	## run zoo tests.
-	nose2 -F -v -B --with-coverage --coverage TTS tests.zoo_tests
+	coverage run -m nose2 -F -v -B tests.zoo_tests
 
 inference_tests: ## run inference tests.
-	nose2 -F -v -B --with-coverage --coverage TTS tests.inference_tests
+	coverage run -m nose2 -F -v -B tests.inference_tests
 
 data_tests: ## run data tests.
-	nose2 -F -v -B --with-coverage --coverage TTS tests.data_tests
+	coverage run -m nose2 -F -v -B tests.data_tests
 
 test_text: ## run text tests.
-	nose2 -F -v -B --with-coverage --coverage TTS tests.text_tests
+	coverage run -m nose2 -F -v -B tests.text_tests
 
 test_failed:  ## only run tests failed the last time.
-	nose2 -F -v -B --with-coverage --coverage TTS tests
+	coverage run -m nose2 -F -v -B tests
 
 style:	## update code style.
 	black ${target_dirs}

pyproject.toml

@@ -64,3 +64,7 @@ max-returns = 7
 [tool.black]
 line-length = 120
 target-version = ['py39']
+
+[tool.coverage.run]
+parallel = true
+source = ["TTS"]

requirements.dev.txt

@@ -1,4 +1,4 @@
 black==24.2.0
-coverage
+coverage[toml]
 nose2
 ruff==0.3.0