publish_release.yml

name: Publish Release

on:
  release:
    types: [created]

jobs:
  publish:
    runs-on: ubuntu-latest

    steps:
    - name: Checkout code
      uses: actions/checkout@v2

    - name: Set up Elixir
      uses: actions/setup-elixir@v1
      with:
        elixir-version: 1.15
        otp-version: 24.0

    - name: Install Dependencies
      run: mix deps.get

    - name: Update version in mix.exs
      run: |
        VERSION=${{ github.ref }}
        VERSION=${VERSION#refs/tags/v}
        sed -i "s/version: \".*\"/version: \"$VERSION\"/" mix.exs

    - name: Commit changes
      run: |
        git config --local user.email "action@github.com"
        git config --local user.name "GitHub Action"
        git commit -m "Update version in mix.exs to $VERSION" -a

    - name: Push changes
      uses: ad-m/github-push-action@master
      with:
        github_token: ${{ secrets.GITHUB_TOKEN }}
        branch: ${{ github.ref }}

    - name: Delete existing tag
      run: git tag -d v$VERSION || true

    - name: Push tag deletion
      run: git push origin :refs/tags/v$VERSION || true

    - name: Tag the commit
      run: git tag v$VERSION

    - name: Push tags
      run: git push --tags

    - name: Publish to Hex
      run: |
        mix hex.publish --yes
      env:
        HEX_API_KEY: ${{ secrets.HEX_API_KEY }}