# Create or Update Comment [![CI](https://github.com/peter-evans/create-or-update-comment/workflows/CI/badge.svg)](https://github.com/peter-evans/create-or-update-comment/actions?query=workflow%3ACI) [![GitHub Marketplace](https://img.shields.io/badge/Marketplace-Create%20or%20Update%20Comment-blue.svg?colorA=24292e&colorB=0366d6&style=flat&longCache=true&logo=data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAA4AAAAOCAYAAAAfSC3RAAAABHNCSVQICAgIfAhkiAAAAAlwSFlzAAAM6wAADOsB5dZE0gAAABl0RVh0U29mdHdhcmUAd3d3Lmlua3NjYXBlLm9yZ5vuPBoAAAERSURBVCiRhZG/SsMxFEZPfsVJ61jbxaF0cRQRcRJ9hlYn30IHN/+9iquDCOIsblIrOjqKgy5aKoJQj4O3EEtbPwhJbr6Te28CmdSKeqzeqr0YbfVIrTBKakvtOl5dtTkK+v4HfA9PEyBFCY9AGVgCBLaBp1jPAyfAJ/AAdIEG0dNAiyP7+K1qIfMdonZic6+WJoBJvQlvuwDqcXadUuqPA1NKAlexbRTAIMvMOCjTbMwl1LtI/6KWJ5Q6rT6Ht1MA58AX8Apcqqt5r2qhrgAXQC3CZ6i1+KMd9TRu3MvA3aH/fFPnBodb6oe6HM8+lYHrGdRXW8M9bMZtPXUji69lmf5Cmamq7quNLFZXD9Rq7v0Bpc1o/tp0fisAAAAASUVORK5CYII=)](https://github.com/marketplace/actions/create-or-update-comment) A GitHub action to create or update an issue or pull request comment. ## Usage ### Add a comment to an issue or pull request ```yml - name: Create comment uses: peter-evans/create-or-update-comment@v3 with: issue-number: 1 body: | This is a multi-line test comment - With GitHub **Markdown** :sparkles: - Created by [create-or-update-comment][1] [1]: https://github.com/peter-evans/create-or-update-comment reactions: '+1' ``` ### Update a comment ```yml - name: Update comment uses: peter-evans/create-or-update-comment@v3 with: comment-id: 557858210 body: | **Edit:** Some additional info reactions: eyes ``` ### Add comment reactions ```yml - name: Add reactions uses: peter-evans/create-or-update-comment@v3 with: comment-id: 557858210 reactions: | heart hooray laugh ``` ### Action inputs | Name | Description | Default | | --- | --- | --- | | `token` | `GITHUB_TOKEN` (`issues: write`, `pull-requests: write`) or a `repo` scoped [PAT](https://docs.github.com/en/authentication/keeping-your-account-and-data-secure/creating-a-personal-access-token). | `GITHUB_TOKEN` | | `repository` | The full name of the repository in which to create or update a comment. | Current repository | | `issue-number` | The number of the issue or pull request in which to create a comment. | | | `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 requests. #### Outputs 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 comment uses: peter-evans/create-or-update-comment@v3 id: couc with: issue-number: 1 body: | My comment - name: Check outputs run: | echo "Comment ID - ${{ steps.couc.outputs.comment-id }}" ``` ### Where to find the id of a comment How to find the id of a comment will depend a lot on the use case. Here is one example where the id can be found in the `github` context during an `issue_comment` event. ```yml on: issue_comment: types: [created] jobs: commentCreated: runs-on: ubuntu-latest steps: - name: Add reaction uses: peter-evans/create-or-update-comment@v3 with: comment-id: ${{ github.event.comment.id }} reactions: eyes ``` Some use cases might find the [find-comment](https://github.com/peter-evans/find-comment) action useful. This will search an issue or pull request for the first comment containing a specified string, and/or by a specified author. See the repository for detailed usage. In the following example, find-comment is used to determine if a comment has already been created on a pull request. If the find-comment action output `comment-id` returns an empty string, a new comment will be created. If it returns a value, the comment already exists and the content is replaced. ```yml - name: Find Comment uses: peter-evans/find-comment@v2 id: fc with: issue-number: ${{ github.event.pull_request.number }} comment-author: 'github-actions[bot]' body-includes: Build output - name: Create or update comment uses: peter-evans/create-or-update-comment@v3 with: comment-id: ${{ steps.fc.outputs.comment-id }} issue-number: ${{ github.event.pull_request.number }} body: | Build output ${{ steps.build.outputs.build-log }} edit-mode: replace ``` If required, the create and update steps can be separated for greater control. ```yml - name: Find Comment uses: peter-evans/find-comment@v2 id: fc with: issue-number: ${{ github.event.pull_request.number }} comment-author: 'github-actions[bot]' body-includes: This comment was written by a bot! - name: Create comment if: steps.fc.outputs.comment-id == '' uses: peter-evans/create-or-update-comment@v3 with: issue-number: ${{ github.event.pull_request.number }} body: | This comment was written by a bot! reactions: rocket - name: Update comment if: steps.fc.outputs.comment-id != '' uses: peter-evans/create-or-update-comment@v3 with: comment-id: ${{ steps.fc.outputs.comment-id }} body: | This comment has been updated! reactions: hooray ``` ### Setting the comment body from a file ```yml - name: Create comment uses: peter-evans/create-or-update-comment@v3 with: issue-number: 1 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 - name: Render template id: template uses: chuhlomin/render-template@v1.4 with: template: .github/comment-template.md vars: | foo: this bar: that - name: Create comment uses: peter-evans/create-or-update-comment@v3 with: issue-number: 1 body: ${{ steps.template.outputs.result }} ``` ### Accessing issues and comments in other repositories You can create and update 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 [MIT](LICENSE)