From adb7bac0ae420832e17e91c1311eaea941b49627 Mon Sep 17 00:00:00 2001
From: bwoodsend <bwoodsend@gmail.com>
Date: Tue, 30 Mar 2021 21:41:13 +0100
Subject: [PATCH 1/3] Add gcov coverage collecting of C code (#387)

---
 .gitignore          |  6 ++++++
 scripts/coverage.sh | 28 ++++++++++++++++++++++++++++
 2 files changed, 34 insertions(+)
 create mode 100644 scripts/coverage.sh

diff --git a/.gitignore b/.gitignore
index b7557264..baa466f1 100644
--- a/.gitignore
+++ b/.gitignore
@@ -141,3 +141,9 @@ python/version.h
 # Docker wheel build
 pip-cache/
 temp-wheels/
+
+# gcov coverage files
+cov
+*.gcov
+*.gcda
+*.gcno
diff --git a/scripts/coverage.sh b/scripts/coverage.sh
new file mode 100644
index 00000000..09f231aa
--- /dev/null
+++ b/scripts/coverage.sh
@@ -0,0 +1,28 @@
+#!/usr/bin/env bash
+
+# Coverage for ultrajson's C code.
+# Usage:
+#   CFLAGS="--coverage -O0" python setup.py -q build_ext --inplace -f
+#   pytest
+#   ./scripts/coverage.sh
+# Then inspect the files in the `cov` folder.
+
+# The exact arguments depend on whether we're using LLVM's gcov or GNU's.
+unameOut="$(uname -s)"
+case "${unameOut}" in
+    Linux*)     gcov_options=(--relative-only -k);;
+    Darwin*)    gcov_options=(--color);;
+    *)          echo "Unsupported OS ${unameOut}"; exit 1;;
+esac
+
+# The actual gcov instructions:
+gcov "${gcov_options[@]}" python/**.c -o build/temp.*/python
+gcov "${gcov_options[@]}" lib/**.c -o build/temp.*/lib
+
+# gcov dumps everything in the cwd without any option to change this.
+# Manually move the .gcov files to a `cov` folder.
+mkdir -p cov
+rm -rf cov/*
+mv ./**.gcov cov || exit 1
+
+echo Written gcov files to ./cov

From 47b84384c5352c85aa9c7394f7df9fe3bc717ed1 Mon Sep 17 00:00:00 2001
From: bwoodsend <bwoodsend@gmail.com>
Date: Tue, 30 Mar 2021 23:10:41 +0100
Subject: [PATCH 2/3] Add codecov upload to CI/CD.

---
 .github/workflows/test.yml | 12 ++++++++++++
 scripts/coverage.sh        |  0
 2 files changed, 12 insertions(+)
 mode change 100644 => 100755 scripts/coverage.sh

diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index c29174b8..ddce44aa 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -49,3 +49,15 @@ jobs:
       - name: Tests
         run: |
           pytest
+
+      - name: Test with coverage
+        if: ${{ startsWith(matrix.os, 'ubuntu') && matrix.python-version == '3.9' }}
+        env:
+          CODECOV_TOKEN: ${{ secrets.CODECOV_TOKEN }}
+        run: |
+          pip install -e .
+          pip install coverage
+          CFLAGS="--coverage -O0" python setup.py -q build_ext --inplace -f
+          coverage run -m pytest
+          ./scripts/coverage.sh
+          bash <(curl -s https://codecov.io/bash) -X gcov
diff --git a/scripts/coverage.sh b/scripts/coverage.sh
old mode 100644
new mode 100755

From 25dad7eae14137b3697c8dde88cc11d475f21746 Mon Sep 17 00:00:00 2001
From: bwoodsend <bwoodsend@gmail.com>
Date: Tue, 30 Mar 2021 23:26:49 +0100
Subject: [PATCH 3/3] Drop colored gcov output on Linux.

It isn't supported on the older gcc versions used by CI/CD.
---
 scripts/coverage.sh | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/scripts/coverage.sh b/scripts/coverage.sh
index 09f231aa..4390ff17 100755
--- a/scripts/coverage.sh
+++ b/scripts/coverage.sh
@@ -10,7 +10,7 @@
 # The exact arguments depend on whether we're using LLVM's gcov or GNU's.
 unameOut="$(uname -s)"
 case "${unameOut}" in
-    Linux*)     gcov_options=(--relative-only -k);;
+    Linux*)     gcov_options=(--relative-only);;
     Darwin*)    gcov_options=(--color);;
     *)          echo "Unsupported OS ${unameOut}"; exit 1;;
 esac