feat: add messageHeadline

Author: Klemensas

README.md

@@ -102,6 +102,19 @@ There are several options to customize how the tag is created.
         GITHUB_TOKEN: "${{ secrets.GITHUB_TOKEN }}"
         tag_message: "Custom message goes here."
     ```
+1. `changelog_structure`
+
+    Provide a custom changelog format when not using `tag_message`.
+    This can interpolate strings, supported strings are `{{message}}`, `{{messageHeadline}}`, `{{author}}` and `{{sha}}`.
+    Defaults to `**1) {{message}}** {{author}}\n(SHA: {{sha}})\n`.
+
+    ```yaml
+    - uses: Klemensas/action-autotag@stable
+      with:
+        GITHUB_TOKEN: "${{ secrets.GITHUB_TOKEN }}"
+        changelog_structure: "**{{messageHeadline}}** {{author}}\n"
+    ```
+
 
 1. `version`
 

action.yml

@@ -19,7 +19,7 @@ inputs:
     description: This is the annotated commit message associated with the tag. By default, a changelog will be generated from the commits between the latest tag and the new tag (HEAD). This will override that with a hard-coded message.
     required: false
   changelog_structure:
-    description: "A string denoting changelog format. Supports `{{message}}`, `{{author}}` and `{{sha}}`. Defaults to `**1) {{message}}** {{author}}\n(SHA: {{sha}})\n` Only used when tag_message is empty."
+    description: "A string denoting changelog format. Supports `{{message}}`, {{messageHeadline}}, `{{author}}` and `{{sha}}`. Defaults to `**1) {{message}}** {{author}}\n(SHA: {{sha}})\n` Only used when tag_message is empty."
     required: false
   version:
     description: Explicitly set the version here instead of automatically detecting from `package.json`. Useful for non-JavaScript projects where version may be output by a previous action.

lib/main.js

@@ -100,8 +100,9 @@ async function run() {
           .map(
             commit =>
               structure
-                .replace(/({{message}})|({{author}})|({{sha}})/g, (match, message, author, sha) => {
+                .replace(/({{message}})|{{messageHeadline}})|({{author}})|({{sha}})/g, (match, message, messageHeadline, author, sha) => {
                   if (message) return commit.commit.message
+                  if (messageHeadline) return commit.commit.messageHeadline
                   if (author) return !commit.hasOwnProperty('author') || !commit.author.hasOwnProperty('login') ? '' : commit.author.login
                   if (sha) return commit.sha
                 })

package.json

@@ -1,6 +1,6 @@
 {
   "name": "autotag-action",
-  "version": "1.1.0",
+  "version": "1.2.0",
   "private": true,
   "description": "Automatically create a tag whenever the version changes in package.json",
   "main": "lib/main.js",