Use local coverage (#360)

* use local coverage

* add fail_under

.github/workflows/tests.yml

@@ -44,11 +44,18 @@ jobs:
         if: ${{ startsWith(matrix.os, 'windows') }}
         run: |
           hatch run cov:nowarn || hatch run test:nowarn --lf
-      - name: Code coverage
-        run: |
-          pip install codecov coverage[toml]
-          codecov
       - run: hatch version 100.100.100
+      - uses: jupyterlab/maintainer-tools/.github/actions/upload-coverage@v1
+
+  coverage:
+    runs-on: ubuntu-latest
+    needs:
+      - tests
+    steps:
+      - uses: actions/checkout@v3
+      - uses: jupyterlab/maintainer-tools/.github/actions/report-coverage@v1
+        with:
+          fail_under: 77
 
   test_lint:
     name: Test Lint
@@ -147,7 +154,7 @@ jobs:
   tests_check: # This job does nothing and is only used for the branch protection
     if: always()
     needs:
-      - tests
+      - coverage
       - test_lint
       - docs
       - test_minimum_versions

README.md

@@ -1,6 +1,5 @@
 # nbformat: Jupyter Notebook Format
 
-[![codecov.io](https://codecov.io/github/jupyter/nbformat/coverage.svg?branch=main)](https://codecov.io/github/jupyter/nbformat/coverage.svg?branch=main)
 ![CI Tests](https://github.com/jupyter/nbformat/workflows/Run%20tests/badge.svg)
 
 `nbformat` contains the reference implementation of the [Jupyter Notebook format],

pyproject.toml

@@ -198,6 +198,10 @@ unfixable = [
 # F401 `nbxml.to_notebook` imported but unused
 "nbformat/*__init__.py" = ["F401"]
 
+[tool.coverage.run]
+relative_files = true
+source = ["nbformat"]
+
 [tool.interrogate]
 ignore-init-module=true
 ignore-private=true