From c9f1286216bf56481415f3f919df0977b5d4a556 Mon Sep 17 00:00:00 2001
From: Xi Xu <i@xi-xu.me>
Date: Fri, 20 Mar 2026 12:43:50 +0800
Subject: [PATCH] fix(ci): normalize lcov paths for codecov

---
 .github/workflows/ci.yml | 21 +++++++++++++++++++++
 1 file changed, 21 insertions(+)

diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 596fbc8..5a3b477 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -89,6 +89,27 @@ jobs:
         env:
           CI: true
 
+      - name: Normalize coverage paths for Codecov
+        run: |
+          python - <<'PY'
+          from pathlib import Path
+
+          path = Path("coverage/lcov.info")
+          lines = path.read_text(encoding="utf-8").splitlines()
+          normalized = []
+
+          for line in lines:
+            if line.startswith("SF:"):
+              normalized.append("SF:" + line[3:].replace("\\", "/"))
+            else:
+              normalized.append(line)
+
+          path.write_text("\n".join(normalized) + "\n", encoding="utf-8")
+          PY
+
+      - name: Show normalized coverage file entries
+        run: grep '^SF:' coverage/lcov.info | head
+
       - name: Upload coverage to Codecov
         uses: codecov/codecov-action@v5
         with: