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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 from GITHUB_TOKEN and RUBYGEMS_API_KEYsecrets, 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

GITHUB_TOKEN - Bundler needs this to create tags on your repo for the release 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

Example

name: Publish Gem

on:
  push:
    branches:
      - "*"
    tags:
      - v*
jobs:
  build:
    runs-on: ubuntu-latest

    steps:
      - uses: actions/checkout@v3

      - name: Release Gem
        if: contains(github.ref, 'refs/tags/v')
        uses: cadwallion/publish-rubygems-action@master
        env:
          GITHUB_TOKEN: ${{secrets.GITHUB_TOKEN}}
          RUBYGEMS_API_KEY: ${{secrets.RUBYGEMS_API_KEY}}
          RELEASE_COMMAND: rake release