From 91d4e09c20da449a0798e7136d1f2fbf6acf595a Mon Sep 17 00:00:00 2001
From: Sviatoslav Sydorenko <wk@sydorenko.org.ua>
Date: Sat, 9 Dec 2023 22:29:42 +0100
Subject: [PATCH] =?UTF-8?q?=F0=9F=A7=AA=20Collect=20Cython=20coverage=20in?=
 =?UTF-8?q?=20CI?=
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---
 .coveragerc                 | 21 +++++++++++++++++++++
 .github/workflows/ci-cd.yml | 26 ++++++++++++++++++++++++++
 MANIFEST.in                 |  1 +
 3 files changed, 48 insertions(+)
 create mode 100644 .coveragerc

diff --git a/.coveragerc b/.coveragerc
new file mode 100644
index 00000000..05fd18d2
--- /dev/null
+++ b/.coveragerc
@@ -0,0 +1,21 @@
+[paths]
+source =
+  frozenlist
+  */lib/pypy*/site-packages/frozenlist
+  */lib/python*/site-packages/frozenlist
+  */Lib/site-packages/frozenlist
+
+[report]
+skip_covered = true
+skip_empty = true
+show_missing = true
+
+[run]
+branch = true
+cover_pylib = false
+plugins = Cython.Coverage
+relative_files = true
+source =
+  tests
+source_pkgs =
+  frozenlist
diff --git a/.github/workflows/ci-cd.yml b/.github/workflows/ci-cd.yml
index 2ed5628e..c443a5fb 100644
--- a/.github/workflows/ci-cd.yml
+++ b/.github/workflows/ci-cd.yml
@@ -276,6 +276,32 @@ jobs:
       shell: bash
     - name: Self-install
       run: python -Im pip install '${{ steps.wheel-file.outputs.path }}'
+    - name: Produce the C-files for the Coverage.py Cython plugin
+      if: >-  # Only works if the dists were built with line tracing
+        !matrix.no-extensions
+        && (
+          github.event_name != 'push'
+          || !contains(github.ref, 'refs/tags/')
+        )
+      env:
+        PYTHONPATH: packaging/
+      run: |
+        set -eEuo pipefail
+
+        python -Im pip install expandvars
+        python -m pep517_backend.cli translate-cython
+      shell: bash
+    - name: Disable the Cython.Coverage Produce plugin
+      if: >-  # Only works if the dists were built with line tracing
+        matrix.no-extensions
+        || (
+          github.event_name == 'push'
+          && contains(github.ref, 'refs/tags/')
+        )
+      run: |
+        set -eEuo pipefail
+        sed -i.bak 's/^plugins = .*//g' .coveragerc
+      shell: bash
     - name: Run unittests
       env:
         COLOR: 'yes'
diff --git a/MANIFEST.in b/MANIFEST.in
index 2122fe5a..31aa51d5 100644
--- a/MANIFEST.in
+++ b/MANIFEST.in
@@ -1,3 +1,4 @@
+include .coveragerc
 include pyproject.toml
 include pytest.ini
 include pytest.ci.ini