Add release workflow automation

.github/workflows/release.yml

@@ -0,0 +1,68 @@
+name: Release
+
+on:
+  pull_request:
+    types: [closed]
+    branches: [main]
+
+defaults:
+  run:
+    shell: bash
+
+jobs:
+  create-release:
+    name: Create GitHub Release
+    if: github.event.pull_request.merged == true && contains(github.event.pull_request.labels.*.name, 'version-bump')
+    runs-on: ubuntu-latest
+    permissions:
+      contents: write
+    steps:
+      - name: Generate token
+        id: generate-token
+        uses: actions/create-github-app-token@v1
+        with:
+          app-id: ${{ vars.WORKOS_BOT_APP_ID }}
+          private-key: ${{ secrets.WORKOS_BOT_PRIVATE_KEY }}
+
+      - name: Checkout
+        uses: actions/checkout@v4
+        with:
+          token: ${{ steps.generate-token.outputs.token }}
+
+      - name: Get version from mix.exs
+        id: get-version
+        run: |
+          VERSION=$(grep '@version "' mix.exs | sed 's/.*@version "\(.*\)"/\1/')
+          echo "version=$VERSION" >> $GITHUB_OUTPUT
+
+      - name: Create Release
+        uses: softprops/action-gh-release@v2
+        with:
+          tag_name: v${{ steps.get-version.outputs.version }}
+          name: v${{ steps.get-version.outputs.version }}
+          generate_release_notes: true
+          token: ${{ steps.generate-token.outputs.token }}
+
+  publish:
+    name: Publish to Hex
+    needs: create-release
+    runs-on: ubuntu-latest
+    permissions:
+      contents: read
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Setup Elixir and Erlang
+        uses: erlef/setup-beam@5304e04ea2b355f03681464e683d92e3b2f18451 # v1.18.2
+        with:
+          elixir-version: '1.15'
+          otp-version: '26.0'
+
+      - name: Install dependencies
+        run: mix deps.get
+
+      - name: Publish to Hex
+        run: mix hex.publish --yes
+        env:
+          HEX_API_KEY: ${{ secrets.HEX_API_KEY }}

.github/workflows/version-bump.yml

@@ -0,0 +1,80 @@
+name: Version Bump
+
+on:
+  workflow_dispatch:
+    inputs:
+      bump_type:
+        description: "Version bump type"
+        required: true
+        type: choice
+        options:
+          - patch
+          - minor
+          - major
+
+jobs:
+  bump-version:
+    runs-on: ubuntu-latest
+    permissions:
+      contents: write
+      pull-requests: write
+    steps:
+      - name: Generate token
+        id: generate-token
+        uses: actions/create-github-app-token@v1
+        with:
+          app-id: ${{ vars.WORKOS_BOT_APP_ID }}
+          private-key: ${{ secrets.WORKOS_BOT_PRIVATE_KEY }}
+
+      - name: Checkout
+        uses: actions/checkout@v4
+        with:
+          token: ${{ steps.generate-token.outputs.token }}
+
+      - name: Configure Git
+        run: |
+          git config user.name "workos-bot[bot]"
+          git config user.email "workos-bot[bot]@users.noreply.github.com"
+
+      - name: Read current version
+        id: current-version
+        run: |
+          CURRENT_VERSION=$(grep '@version "' mix.exs | sed 's/.*@version "\(.*\)"/\1/')
+          echo "version=$CURRENT_VERSION" >> $GITHUB_OUTPUT
+
+      - name: Bump version
+        id: bump-version
+        run: |
+          CURRENT_VERSION="${{ steps.current-version.outputs.version }}"
+          IFS='.' read -r MAJOR MINOR PATCH <<< "$CURRENT_VERSION"
+
+          case "${{ github.event.inputs.bump_type }}" in
+            major)
+              NEW_VERSION="$((MAJOR + 1)).0.0"
+              ;;
+            minor)
+              NEW_VERSION="$MAJOR.$((MINOR + 1)).0"
+              ;;
+            patch)
+              NEW_VERSION="$MAJOR.$MINOR.$((PATCH + 1))"
+              ;;
+          esac
+
+          echo "new_version=$NEW_VERSION" >> $GITHUB_OUTPUT
+
+      - name: Update version in mix.exs
+        run: |
+          sed -i 's/@version ".*"/@version "${{ steps.bump-version.outputs.new_version }}"/' mix.exs
+
+      - name: Create Pull Request
+        uses: peter-evans/create-pull-request@v7
+        with:
+          token: ${{ steps.generate-token.outputs.token }}
+          commit-message: "v${{ steps.bump-version.outputs.new_version }}"
+          title: "v${{ steps.bump-version.outputs.new_version }}"
+          body: |
+            Bumps version from ${{ steps.current-version.outputs.version }} to ${{ steps.bump-version.outputs.new_version }}.
+
+            This PR was automatically created by the version-bump workflow.
+          branch: version-bump-${{ steps.bump-version.outputs.new_version }}
+          labels: version-bump