github-slack-emoji-reaction

Automatically add Slack emoji reactions to messages with Pull Request links.

Installation

1. Add the GitHub workflow below in your repository under .github/workflows/github-slack-emoji-reaction.yml.

name: GitHub Slack Emoji Reaction
on:
  pull_request_review:
    types: [submitted, edited, dismissed]
  pull_request:
    types: [closed, reopened, review_requested]
permissions:
  pull-requests: read
jobs:
  gser:
    runs-on: ubuntu-latest
    continue-on-error: true
    steps:
        - uses: actions/checkout@v4
          with:
            repository: jybp/github-slack-emoji-reaction
            ref: 'v1.3.0'
        - uses: actions/setup-go@v4
          with:
            go-version: '1.20'
        - run: go run cmd/gser/main.go -v
          env:
            GITHUB_TOKEN: "${{ secrets.GITHUB_TOKEN }}"
            SLACK_BOT_TOKEN: "${{ secrets.SLACK_BOT_TOKEN }}"
            SLACK_CHANNEL_IDS: C05GGMQ2R61,C05GN394WCC
            EMOJI_APPROVED: white_check_mark
            EMOJI_CHANGES_REQUESTED: x
            EMOJI_COMMENTED: speech_balloon
            EMOJI_CLOSED: no_entry
            EMOJI_MERGED: large_purple_square
            EMOJI_REVIEW_REQUESTED: arrows_counterclockwise
            SLACK_MESSAGES_LIMIT: 100
            SLACK_REPLIES_LIMIT: 100

2. Set a Slack bot token in the SLACK_BOT_TOKEN GitHub secret with the following permissions: channels:history, reactions:read, reactions:write.

3. Update SLACK_CHANNEL_IDS with the channel IDs to cover.

4. Optionally customize the Slack emojis with the EMOJI_* environment variables.
5. Optionally customize the number of messages looked up on each channel with the SLACK_MESSAGES_LIMIT and SLACK_REPLIES_LIMIT environment variables.
6. Invite the bot to the channels to cover in Slack.