This can be used to automate the release process of a Haskell package.

To use this action to automate the release process of your Haskell package you will need to:

1. Generate a Hackage Auth Token
2. Add the generated Hackage Auth Token to your GitHub repository
3. Create a GitHub Actions workflow

By following these three steps you will end up with a GitHub Actions workflow that automates releases.

Specifically, whenever the workflow detects a new version without a corresponding git tag it:

• creates a git tag
• publishes your package to Hackage

1. Go to https://hackage.haskell.org/users/account-management
2. Sign in with your Hackage credentials
3. Generate a new token under Authentication Tokens -> Register new token

1. Go to Settings -> Secrets and variables -> Actions -> Repository secrets -> New repository secret
2. UseHACKAGE_AUTH_TOKEN as Name and the Auth token value as Secret
3. Click Add secret

# file: .github/workflows/publish.yml
name: publish

permissions:
  contents: write

on:
  push:
    branches:
      - main

jobs:
  publish:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v3

      - uses: sol/haskell-autotag@v1
        id: autotag

      - run: cabal sdist

      - uses: haskell-actions/[email protected]
        with:
          hackageToken: ${{ secrets.HACKAGE_AUTH_TOKEN }}
          publish: true
        if: steps.autotag.outputs.created