ci: fetch base branch before regression test check

The regression-test-check workflow failed because origin/main wasn't
available as a ref in the CI environment. actions/checkout@v4 fetches
the PR merge ref history but doesn't make the base branch ref available
for three-dot diff comparisons.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
This commit is contained in:
Umesh Kumar Singh
2026-03-11 08:54:57 +05:30
parent 84802e1b89
commit 1d5a7bdc8e

View File

@@ -13,6 +13,11 @@ jobs:
with:
fetch-depth: 0
- name: Fetch PR head and base
run: |
git fetch origin ${{ github.event.pull_request.base.ref }}
git fetch origin pull/${{ github.event.pull_request.number }}/head:pr-head
- name: Check for regression tests
env:
PR_TITLE: ${{ github.event.pull_request.title }}
@@ -21,6 +26,8 @@ jobs:
set -euo pipefail
BASE_REF="origin/${{ github.event.pull_request.base.ref }}"
# Use the actual PR head, not the merge commit that actions/checkout checks out
HEAD_REF="pr-head"
# --- 1. Is this a fix PR? Check title first, then commit messages ---
IS_FIX=false
@@ -30,7 +37,7 @@ jobs:
fi
if [ "$IS_FIX" = false ]; then
COMMITS=$(git log --format='%s' "${BASE_REF}..HEAD")
COMMITS=$(git log --format='%s' "${BASE_REF}..${HEAD_REF}")
if grep -qiE '^(fix(\(.*\))?|hotfix|bugfix):' <<< "$COMMITS"; then
IS_FIX=true
fi
@@ -49,14 +56,14 @@ jobs:
exit 0
fi
COMMIT_BODIES=$(git log --format='%B' "${BASE_REF}..HEAD")
COMMIT_BODIES=$(git log --format='%B' "${BASE_REF}..${HEAD_REF}")
if grep -qF '[skip-regression-check]' <<< "$COMMIT_BODIES"; then
echo "[skip-regression-check] found in commit message — skipping."
exit 0
fi
# --- 3. Exempt static-only / docs-only changes ---
CHANGED_FILES=$(git diff --name-only "${BASE_REF}...HEAD")
CHANGED_FILES=$(git diff --name-only "${BASE_REF}...${HEAD_REF}")
if [ -z "$CHANGED_FILES" ]; then
echo "No changed files — skipping."
@@ -80,13 +87,13 @@ jobs:
# --- 4. Look for test changes ---
# Fast path: new test attributes or test modules in added lines.
if git diff "${BASE_REF}...HEAD" -U0 -- '*.rs' | grep -qE '^\+.*(#\[test\]|#\[tokio::test\]|#\[cfg\(test\)\]|mod tests)'; then
if git diff "${BASE_REF}...${HEAD_REF}" -U0 -- '*.rs' | grep -qE '^\+.*(#\[test\]|#\[tokio::test\]|#\[cfg\(test\)\]|mod tests)'; then
echo "Test changes found in .rs files."
exit 0
fi
# Whole-function context: detect edits inside existing test functions.
if git diff "${BASE_REF}...HEAD" -W -- '*.rs' | awk '
if git diff "${BASE_REF}...${HEAD_REF}" -W -- '*.rs' | awk '
/^@@/ { if (has_test && has_add) { found=1; exit } has_test=0; has_add=0 }
/^ .*#\[test\]/ || /^ .*#\[tokio::test\]/ || /^ .*#\[cfg\(test\)\]/ || /^ .*mod tests/ { has_test=1 }
/^\+.*#\[test\]/ || /^\+.*#\[tokio::test\]/ || /^\+.*#\[cfg\(test\)\]/ || /^\+.*mod tests/ { has_test=1 }