docs

README.md

@@ -8,16 +8,46 @@ A GitHub action to create a comment for a commit on GitHub.
 
 ## Usage
 
+### Add a comment to the current context's commit SHA
+
+The SHA defaults to `github.sha` OR, for `pull_request` events `github.event.pull_request.head.sha`.
+
 ```yml
       - name: Create commit comment
-        uses: peter-evans/commit-comment@v2
+        uses: peter-evans/commit-comment@v3
         with:
           body: |
             This is a multi-line test comment
             - With GitHub **Markdown** :sparkles:
             - Created by [commit-comment][1]
 
             [1]: https://github.com/peter-evans/commit-comment
+          reactions: '+1'
+```
+
+### Update a commit comment
+
+```yml
+      - name: Update commit comment
+        uses: peter-evans/commit-comment@v3
+        with:
+          comment-id: 557858210
+          body: |
+            **Edit:** Some additional info
+          reactions: eyes
+```
+
+### Add commit comment reactions
+
+```yml
+      - name: Add reactions
+        uses: peter-evans/commit-comment@v3
+        with:
+          comment-id: 557858210
+          reactions: |
+            heart
+            hooray
+            laugh
 ```
 
 ## Action inputs
@@ -27,51 +57,74 @@ A GitHub action to create a comment for a commit on GitHub.
 | `token` | `GITHUB_TOKEN` or a `repo` scoped [PAT](https://docs.github.com/en/github/authenticating-to-github/creating-a-personal-access-token). | `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. | |
+| `comment-id` | The id of the comment to update. | |
+| `body` | The comment body. Cannot be used in conjunction with `body-path`. | |
+| `body-path` | The path to a file containing the comment body. Cannot be used in conjunction with `body`. | |
+| `edit-mode` | The mode when updating a comment, `replace` or `append`. | `append` |
+| `append-separator` | The separator to use when appending to an existing comment. (`newline`, `space`, `none`) | `newline` |
+| `reactions` | A comma or newline separated list of reactions to add to the comment. (`+1`, `-1`, `laugh`, `confused`, `heart`, `hooray`, `rocket`, `eyes`) | |
+| `reactions-edit-mode` | The mode when updating comment reactions, `replace` or `append`. | `append` |
+
+Note: In *public* repositories this action does not work in `pull_request` workflows when triggered by forks.
+Any attempt will be met with the error, `Resource not accessible by integration`.
+This is due to token restrictions put in place by GitHub Actions. Private repositories can be configured to [enable workflows](https://docs.github.com/en/repositories/managing-your-repositorys-settings-and-features/enabling-features-for-your-repository/managing-github-actions-settings-for-a-repository#enabling-workflows-for-forks-of-private-repositories) from forks to run without restriction. See [here](https://github.com/peter-evans/create-pull-request/blob/main/docs/concepts-guidelines.md#restrictions-on-repository-forks) for further explanation. Alternatively, use the [`pull_request_target`](https://docs.github.com/en/actions/using-workflows/events-that-trigger-workflows#pull_request_target) event to comment on pull request commits.
 
-## Example
+#### Outputs
 
-Here is an example setting optional input parameters.
+The ID of the created comment will be output for use in later steps.
+Note that in order to read the step output the action step must have an id.
 
 ```yml
       - name: Create commit comment
-        uses: peter-evans/commit-comment@v2
+        uses: peter-evans/commit-comment@v3
+        id: cc
         with:
-          sha: 843dea1cc2e721163c20a5c876b5b155f7f3aa75
           body: |
-            This is a multi-line test comment
-            - With GitHub **Markdown** :sparkles:
-            - Created by [commit-comment][1]
-
-            [1]: https://github.com/peter-evans/commit-comment
-          path: path/to/file.txt
-          position: 1
+            My comment
+      - name: Check outputs
+        run: |
+          echo "Comment ID - ${{ steps.cc.outputs.comment-id }}"
 ```
 
 ### Setting the comment body from a file
 
-This example shows how file content can be read into a variable and passed to the action.
+```yml
+      - name: Create commit comment
+        uses: peter-evans/commit-comment@v3
+        with:
+          body-path: 'comment-body.md'
+```
+
+### Using a markdown template
 
+In this example, a markdown template file is added to the repository at `.github/comment-template.md` with the following content.
+```
+This is a test comment template
+Render template variables such as {{ .foo }} and {{ .bar }}.
+```
+
+The template is rendered using the [render-template](https://github.com/chuhlomin/render-template) action and the result is used to create the comment.
 ```yml
-      - id: get-comment-body
-        run: |
-          body="$(cat comment-body.txt)"
-          delimiter="$(openssl rand -hex 8)"
-          echo "body<<$delimiter" >> $GITHUB_OUTPUT
-          echo "$body" >> $GITHUB_OUTPUT
-          echo "$delimiter" >> $GITHUB_OUTPUT
+      - name: Render template
+        id: template
+        uses: chuhlomin/render-template@v1.4
+        with:
+          template: .github/comment-template.md
+          vars: |
+            foo: this
+            bar: that
 
       - name: Create commit comment
-        uses: peter-evans/commit-comment@v2
+        uses: peter-evans/commit-comment@v3
         with:
-          body: ${{ steps.get-comment-body.outputs.body }}
+          body: ${{ steps.template.outputs.result }}
 ```
 
-### Accessing commits in other repositories
+### Accessing commits and comments in other repositories
 
-You can create a commit comment in another repository by using a [PAT](https://docs.github.com/en/github/authenticating-to-github/creating-a-personal-access-token) instead of `GITHUB_TOKEN`.
+You can create and update commit comments in another repository by using a [PAT](https://docs.github.com/en/authentication/keeping-your-account-and-data-secure/creating-a-personal-access-token) instead of `GITHUB_TOKEN`.
 The user associated with the PAT must have write access to the repository.
 
 ## License

action.yml

@@ -16,8 +16,7 @@ inputs:
   comment-id:
     description: 'The id of the comment to update.'
   body:
-    description: 'The contents of the comment.'
-    required: true
+    description: 'The comment body. Cannot be used in conjunction with `body-path`.'
   body-path:
     description: 'The path to a file containing the comment body. Cannot be used in conjunction with `body`.'
   edit-mode: