GitHub Action - Publish Gem to Rubygems

This is a GitHub Action written to streamline the Ruby gem publication process. The action sets the Gem Credentials using RUBYGEMS_API_KEY secret and then runs rake release in your project root. You can override this command by setting RELEASE_COMMAND environment variable to the script that creates and publishes (this is usually only the case when a repository hosts multiple gems together).

Secrets Needed

RUBYGEMS_API_KEY - The Rubygems API Key for an Owner of the Gem you wish to publish. You can find your API Key by looking in ~/.gem/credentials or using the Rubygems API.

Environment Variables

RELEASE_COMMAND - By default, this will invoke rake release to build and publish the gem to Rubygems. Set this environment variable if you have a custom release command to be invoked.

WORKDIR - Sets the workdir where bundle and the release will be run

GIT_EMAIL/GIT_NAME - A git identity you wish the tags to by published by.

Example

name: CI

on:
  push:
    branches:
      - main

jobs:
  build:
    runs-on: ubuntu-latest

    steps: (your tests go here)

  publish:
    if: github.event_name == 'push' && github.ref == 'refs/heads/main'
    needs: build
    runs-on: ubuntu-latest

    steps:
      - uses: actions/checkout@v3

      - name: Release Gem
        uses: discourse/publish-rubygems-action@v2
        env:
          RUBYGEMS_API_KEY: ${{ secrets.RUBYGEMS_API_KEY }}
          RELEASE_COMMAND: rake release
          GIT_EMAIL: ci@example.com
          GIT_NAME: Your CI