Default pull request events to the branch HEAD commit

.github/workflows/ci.yml

@@ -31,13 +31,6 @@ jobs:
         with:
           name: action.yml
           path: action.yml
-      - id: vars
-        run: |
-          if [[ "${{ github.event_name }}" == "pull_request" ]]; then \
-            echo "::set-output name=sha::${{ github.event.pull_request.head.sha }}"; \
-          else \
-            echo "::set-output name=sha::${{ github.sha }}"; \
-          fi
 
   test:
     if: github.event_name == 'push' || github.event.pull_request.head.repo.full_name == github.repository
@@ -62,10 +55,9 @@ jobs:
       - name: Test create commit comment
         uses: ./
         with:
-          sha: ${{ needs.build.outputs.sha }}
           body: |
             This is a multi-line test comment
-            - With GitHub **Markdown**
+            - With GitHub **Markdown** :sparkles:
             - Created by [commit-comment][1]
 
             [1]: https://github.com/peter-evans/commit-comment

README.md

@@ -14,40 +14,47 @@ A GitHub action to create a comment for a commit on GitHub.
         with:
           body: |
             This is a multi-line test comment
-            - With GitHub **Markdown**
+            - With GitHub **Markdown** :sparkles:
             - Created by [commit-comment][1]
 
             [1]: https://github.com/peter-evans/commit-comment
 ```
 
-## Parameters
+## Action inputs
 
-- `token` - The GitHub authentication token. Defaults to `GITHUB_TOKEN`.
-- `sha` - The commit SHA. Defaults to the current commit.
-- `body` (**required**) - The contents of the comment.
-- `path` - Relative path of the file to comment on.
-- `position` - Line index in the diff to comment on.
+| Name | Description | Default |
+| --- | --- | --- |
+| `token` | `GITHUB_TOKEN` or a `repo` scoped [PAT](https://help.github.com/en/github/authenticating-to-github/creating-a-personal-access-token-for-the-command-line). | `GITHUB_TOKEN` |
+| `repository` | The full name of the target repository. | `github.repository` (current repository) |
+| `sha` | The commit SHA. | `github.sha` OR, for `pull_request` events `github.event.pull_request.head.sha` |
+| `body` | (**required**) The contents of the comment. | |
+| `path` | Relative path of the file to comment on. | |
+| `position` | Line index in the diff to comment on. | |
 
 ## Example
 
-Here is an example setting all of the input parameters.
+Here is an example setting optional input parameters.
 
 ```yml
       - name: Create commit comment
         uses: peter-evans/commit-comment@v1
         with:
-          token: ${{ secrets.GITHUB_TOKEN }}
           sha: 843dea1cc2e721163c20a5c876b5b155f7f3aa75
           body: |
             This is a multi-line test comment
-            - With GitHub **Markdown**
+            - With GitHub **Markdown** :sparkles:
             - Created by [commit-comment][1]
 
             [1]: https://github.com/peter-evans/commit-comment
           path: path/to/file.txt
           position: 1
 ```
 
+### Accessing commits in other repositories
+
+You can create a commit comment in another repository by using a [PAT](https://help.github.com/en/github/authenticating-to-github/creating-a-personal-access-token-for-the-command-line) instead of `GITHUB_TOKEN`.
+The user associated with the PAT must have write access to the repository.
+
 ## License
 
 [MIT](LICENSE)

action.yml

@@ -4,9 +4,11 @@ inputs:
   token:
     description: 'The GitHub authentication token'
     default: ${{ github.token }}
-    required: true
+  repository:
+    description: 'The full name of the target repository.'
+    default: ${{ github.repository }}
   sha:
-    description: 'The commit SHA. Defaults to the current commit.'
+    description: 'The commit SHA.'
   body:
     description: 'The contents of the comment.'
     required: true