ci: auto-update CHANGELOG.md on release (conventional commits → Added/Fixed sections)

Author: jakub-przepiora

.github/workflows/release.yml

@@ -81,21 +81,59 @@ jobs:
           echo "$BODY" >> $GITHUB_OUTPUT
           echo "EOF" >> $GITHUB_OUTPUT
 
-      - name: Bump version in config/version.php
+      - name: Bump version and update CHANGELOG.md
         run: |
           VERSION="${{ steps.version.outputs.version }}"
+          DATE=$(date +%Y-%m-%d)
           git config user.name "github-actions[bot]"
           git config user.email "github-actions[bot]@users.noreply.github.com"
           git remote set-url origin https://x-access-token:${{ secrets.GITHUB_TOKEN }}@github.com/${{ github.repository }}
           git fetch origin main
           git checkout main
           git pull origin main
+
+          # Bump version.php
           sed -i "s/'current' => '.*'/'current' => '${VERSION}'/" backend/config/version.php
+
+          # Update CHANGELOG.md — replace [Unreleased] header with version + date, add new Unreleased
+          if [ -f CHANGELOG.md ]; then
+            # Build changelog entry from conventional commits
+            PREV_TAG=$(git tag --sort=-v:refname | grep -v "^${VERSION}$" | head -1 || echo "")
+            FEATURES=""
+            FIXES=""
+            if [ -n "$PREV_TAG" ]; then
+              FEATURES=$(git log "${PREV_TAG}..HEAD" --pretty=format:"%s" --no-merges | grep -E "^feat" | sed 's/^feat[^:]*: /- /' || true)
+              FIXES=$(git log "${PREV_TAG}..HEAD" --pretty=format:"%s" --no-merges | grep -E "^fix" | sed 's/^fix[^:]*: /- /' || true)
+            fi
+
+            # Build the new entry
+            ENTRY="## [${VERSION}] - ${DATE}\n"
+            if [ -n "$FEATURES" ]; then
+              ENTRY="${ENTRY}\n### Added\n${FEATURES}\n"
+            fi
+            if [ -n "$FIXES" ]; then
+              ENTRY="${ENTRY}\n### Fixed\n${FIXES}\n"
+            fi
+
+            # Insert after the [Unreleased] section marker
+            sed -i "/^## \[Unreleased\]/,/^## \[/ {
+              /^## \[Unreleased\]/! {
+                /^## \[/ i\\
+${ENTRY}
+              }
+            }" CHANGELOG.md
+
+            # Update comparison links
+            sed -i "s|\[Unreleased\]: .*|[Unreleased]: https://github.com/Mes-Open/OpenMes/compare/${VERSION}...develop|" CHANGELOG.md
+
+            git add CHANGELOG.md
+          fi
+
           git add backend/config/version.php
           if git diff --cached --quiet; then
             echo "Version already set to ${VERSION}, no commit needed."
           else
-            git commit -m "chore: bump version to ${VERSION}"
+            git commit -m "chore: bump version to ${VERSION}, update CHANGELOG"
             git push origin main
           fi