Fix coverage handling (#392

* fix coverage handling

* try without double checkout

* add checkout

* use relative files

Author: blink1073

.github/workflows/tests.yml

@@ -40,10 +40,17 @@ jobs:
       - name: Run the tests on pypy
         if: ${{ startsWith(matrix.python-version, 'pypy') || startsWith(matrix.python-version, '3.7') }}
         run: hatch run cov:nowarn
-      - name: Upload coverage
-        run: |
-          pip install codecov coverage[toml]
-          codecov
+      - uses: jupyterlab/maintainer-tools/.github/actions/upload-coverage@v1
+
+  coverage_report:
+    name: Combine & check coverage
+    needs: test
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v3
+      - uses: jupyterlab/maintainer-tools/.github/actions/report-coverage@v1
+        with:
+          fail_under: 80
 
   test_lint:
     name: Test Lint
@@ -140,7 +147,7 @@ jobs:
   tests_check: # This job does nothing and is only used for the branch protection
     if: always()
     needs:
-      - test
+      - coverage_report
       - test_lint
       - check_links
       - docs

README.md

@@ -1,6 +1,5 @@
 # jupyterlab server
 
-[![codecov](https://codecov.io/gh/jupyterlab/jupyterlab_server/branch/main/graph/badge.svg?token=4fjcFj91Le)](https://codecov.io/gh/jupyterlab/jupyterlab_server)
 [![Build Status](https://github.com/jupyterlab/jupyterlab_server/workflows/Tests/badge.svg?branch=master)](https://github.com/jupyterlab/jupyterlab_server/actions?query=branch%3Amaster+workflow%3A%22Tests%22)
 [![Documentation Status](https://readthedocs.org/projects/jupyterlab_server/badge/?version=stable)](http://jupyterlab_server.readthedocs.io/en/stable/)
 

codecov.yml

@@ -70,7 +70,6 @@ openapi = [
   "ruamel.yaml",
 ]
 test = [
-  "codecov",
   "hatch",
   "ipykernel",
   "pytest-jupyter[server]>=0.6.2",
@@ -269,3 +268,7 @@ ignore-nested-functions=true
 ignore-nested-classes=true
 fail-under=100
 exclude = ["tests", "docs"]
+
+[tool.coverage.run]
+relative_files = true
+source = ["jupyterlab_server"]