Merge pull request #211 from dnlcrl/master

Feature: check-last-commit-only option

README.md

@@ -204,6 +204,19 @@ Example:
     bump-policy: 'ignore'
 ```
 
+#### **check-last-commit-only:**
+
+Set check-last-commit-only to only read last commit's message (optional). Example:
+
+```yaml
+- name:  'Automated Version Bump'
+  uses:  'phips28/gh-action-bump-version@master'
+  env:
+    GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+  with:
+    check-last-commit-only: 'true'
+```
+
 #### [DEPRECATED] **push:**
 **DEPRECATED** Set false you want to avoid pushing the new version tag/package.json. Example:
 ```yaml

action.yml

@@ -70,6 +70,10 @@ inputs:
     description: 'Set version bump ignore policy'
     default: 'all'
     required: false
+  check-last-commit-only:
+    description: 'Check only last commit message'
+    default: 'false'
+    required: false
   push:
     description: '[DEPRECATED] Set to false to skip pushing the new tag'
     default: 'true'

index.js

@@ -35,7 +35,17 @@ const pkg = getPackageJson();
   const tagSuffix = process.env['INPUT_TAG-SUFFIX'] || '';
   console.log('tagPrefix:', tagPrefix);
   console.log('tagSuffix:', tagSuffix);
-  const messages = event.commits ? event.commits.map((commit) => commit.message + '\n' + commit.body) : [];
+
+  const checkLastCommitOnly = process.env['INPUT_CHECK-LAST-COMMIT-ONLY'] || 'false';
+
+  let messages = []
+  if (checkLastCommitOnly === 'true') {
+    console.log('Only checking the last commit...');
+    const commit = event.commits && event.commits.lengths > 0 ? event.commits[event.commits.length - 1] : null;
+    messages = commit ? [commit.message + '\n' + commit.body] : [];
+  } else {
+    messages = event.commits ? event.commits.map((commit) => commit.message + '\n' + commit.body) : [];
+  }
 
   const commitMessage = process.env['INPUT_COMMIT-MESSAGE'] || 'ci: version bump to {{version}}';
   console.log('commit messages:', messages);