release.yml

name: Release

on:
  workflow_run:
    workflows: ["CI"]
    types:
      - completed
    branches:
      - master
      - main

jobs:
  release:
    name: Release
    runs-on: ubuntu-latest
    if: github.event.workflow_run.conclusion == 'success'

    steps:
      - name: Checkout code
        uses: actions/checkout@v3
        with:
          ref: ${{ github.event.workflow_run.head_sha }}
          fetch-depth: 0
          persist-credentials: false

      - name: Set up Node.js
        uses: actions/setup-node@v3
        with:
          node-version: '18'

      - name: Install semantic-release
        run: |
          npm install -g \
            semantic-release@21

      - name: Run semantic-release
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
        run: npx semantic-release

      - name: Check if release was created
        id: check_release
        run: |
          # Get the current commit SHA
          CURRENT_SHA=$(git rev-parse HEAD)
          # Check if there's a tag pointing to this commit
          if git describe --exact-match --tags $CURRENT_SHA 2>/dev/null; then
            echo "release_created=true" >> $GITHUB_OUTPUT
            echo "Release was created"
          else
            echo "release_created=false" >> $GITHUB_OUTPUT
            echo "No release was created"
          fi

      - name: Set up Elixir
        if: steps.check_release.outputs.release_created == 'true'
        uses: erlef/setup-beam@v1
        with:
          elixir-version: '1.14.2'
          otp-version: '25.1.1'

      - name: Get latest release version
        if: steps.check_release.outputs.release_created == 'true'
        id: get_version
        run: |
          # Fetch all tags
          git fetch --tags
          # Get the latest tag
          VERSION=$(git describe --tags --abbrev=0)
          # Remove 'v' prefix if present
          VERSION=${VERSION#v}
          echo "version=$VERSION" >> $GITHUB_OUTPUT
          echo "Latest version: $VERSION"

      - name: Update version in mix.exs
        if: steps.check_release.outputs.release_created == 'true'
        run: |
          VERSION="${{ steps.get_version.outputs.version }}"
          # Update the version in the project configuration
          sed -i "s/^\s*version: \"[^\"]*\"/      version: \"$VERSION\"/" mix.exs
          echo "Updated version to:"
          cat mix.exs | grep "version:"

      - name: Install dependencies
        if: steps.check_release.outputs.release_created == 'true'
        run: mix deps.get

      - name: Publish to Hex.pm
        if: steps.check_release.outputs.release_created == 'true'
        env:
          HEX_API_KEY: ${{ secrets.HEX_API_KEY }}
        run: mix hex.publish --yes