fix: handle merged PR titles in release workflow

.github/workflows/release.yml

@@ -1,6 +1,11 @@
 name: Release
 
 on:
+  workflow_dispatch:
+    inputs:
+      version:
+        description: "Release version, for example 0.1.0 or v0.1.0"
+        required: true
   push:
     branches:
       - "main"
@@ -38,21 +43,36 @@ jobs:
         shell: bash
         env:
           HEAD_COMMIT_MESSAGE: ${{ github.event.head_commit.message }}
+          RELEASE_VERSION: ${{ inputs.version }}
         run: |
-          title="${HEAD_COMMIT_MESSAGE%%$'\n'*}"
-          re="^feat: release v?([0-9]+\.[0-9]+\.[0-9]+(-[0-9A-Za-z.-]+)?)$"
-          if [[ $title =~ $re ]]; then
-              v=v${BASH_REMATCH[1]}
-              echo "version=${v}" >> $GITHUB_OUTPUT
-              echo "version_without_v=${BASH_REMATCH[1]}" >> $GITHUB_OUTPUT
-              if [[ ${BASH_REMATCH[1]} == *-* ]]; then
-                  echo "is_prerelease=true" >> $GITHUB_OUTPUT
+          semver_re="^v?([0-9]+\.[0-9]+\.[0-9]+(-[0-9A-Za-z.-]+)?)$"
+          if [ -n "$RELEASE_VERSION" ]; then
+              if [[ $RELEASE_VERSION =~ $semver_re ]]; then
+                  version="${BASH_REMATCH[1]}"
               else
-                  echo "is_prerelease=false" >> $GITHUB_OUTPUT
+                  echo "version input is not correct (expected: X.Y.Z[-prerelease])"
+                  exit 1
               fi
           else
-              echo "commit format is not correct (expected: feat: release vX.Y.Z[-prerelease])"
-              exit 1
+              title="${HEAD_COMMIT_MESSAGE%%$'\n'*}"
+              if [[ $title =~ ^(.*)\ \(#[0-9]+\)$ ]]; then
+                  title="${BASH_REMATCH[1]}"
+              fi
+              title_re="^feat: release v?([0-9]+\.[0-9]+\.[0-9]+(-[0-9A-Za-z.-]+)?)$"
+              if [[ $title =~ $title_re ]]; then
+                  version="${BASH_REMATCH[1]}"
+              else
+                  echo "commit format is not correct (expected: feat: release vX.Y.Z[-prerelease])"
+                  exit 1
+              fi
+          fi
+
+          echo "version=v${version}" >> $GITHUB_OUTPUT
+          echo "version_without_v=${version}" >> $GITHUB_OUTPUT
+          if [[ $version == *-* ]]; then
+              echo "is_prerelease=true" >> $GITHUB_OUTPUT
+          else
+              echo "is_prerelease=false" >> $GITHUB_OUTPUT
           fi
 
       - name: Verify rockspec exists