From cec8375d0ac00e44484ff25e9fab452bb7b5245a Mon Sep 17 00:00:00 2001
From: dnlcrl <ciriello.daniele@gmail.com>
Date: Fri, 12 May 2023 09:09:57 +0200
Subject: [PATCH] add check-last-commit-only to check only in last commit

---
 README.md  | 13 +++++++++++++
 action.yml |  4 ++++
 index.js   | 13 +++++++++++++
 3 files changed, 30 insertions(+)

diff --git a/README.md b/README.md
index 14c2621..4596f3f 100644
--- a/README.md
+++ b/README.md
@@ -204,6 +204,19 @@ Example:
     bump-policy: 'ignore'
 ```
 
+### **check-only-last-commit**
+
+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
diff --git a/action.yml b/action.yml
index dee53c2..775160b 100644
--- a/action.yml
+++ b/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's message'
+    default: 'false'
+    required: false
   push:
     description: '[DEPRECATED] Set to false to skip pushing the new tag'
     default: 'true'
diff --git a/index.js b/index.js
index 6d6cb51..308e1a1 100644
--- a/index.js
+++ b/index.js
@@ -35,6 +35,19 @@ const pkg = getPackageJson();
   const tagSuffix = process.env['INPUT_TAG-SUFFIX'] || '';
   console.log('tagPrefix:', tagPrefix);
   console.log('tagSuffix:', tagSuffix);
+
+  const checkLAstCommitOnly = process.env['INPUT_CHECK-LAST-COMMIT-ONLY'] || 'false';
+
+  if (checkLAstCommitOnly === 'true') {
+    console.log('Only checking the last commit...');
+    const commit = event.commits ? event.commits[event.commits.length - 1] : null;
+    const messages = commit ? [commit.message + '\n' + commit.body] : [];
+    await run(messages, versionType, tagPrefix, tagSuffix, pkg);
+  } else {
+    const messages = event.commits ? event.commits.map((commit) => commit.message + '\n' + commit.body) : [];
+    await run(messages, versionType, tagPrefix, tagSuffix, pkg);
+  }
+
   const messages = event.commits ? event.commits.map((commit) => commit.message + '\n' + commit.body) : [];
 
   const commitMessage = process.env['INPUT_COMMIT-MESSAGE'] || 'ci: version bump to {{version}}';