feat(workflows): implement build and release workflows

.github/workflows/build.yml

@@ -0,0 +1,55 @@
+---
+name: Build
+
+"on":
+  workflow_call:
+    inputs:
+      path:
+        description: Path to package directory
+        required: true
+        type: string
+      manifest:
+        description: Output from release-please
+        required: true
+        type: string
+  workflow_dispatch:
+    inputs:
+      path:
+        description: Path to package directory
+        required: true
+        type: string
+
+jobs:
+  build:
+    runs-on: ubuntu-22.04
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v3
+        with:
+          fetch-depth: 0
+          token: ${{ secrets.PAT }}
+      - name: JDK Setup
+        uses: actions/setup-java@v3
+        with:
+          cache: maven
+          java-version: '17'
+          distribution: temurin
+      - name: Maven Package
+        run: |
+          mvn --batch-mode clean package
+          test -f ./target/*.jar
+        working-directory: ${{ inputs.path }}
+      - name: Upload Artifact to Release
+        if: github.event_name == 'workflow_call'
+        uses: shogo82148/[email protected]
+        with:
+          github_token: ${{ secrets.PAT }}
+          upload_url: ${{ fromJSON(inputs.manifest)[format('{0}--upload_url', inputs.path)] }}
+          asset_path: ./${{ inputs.path }}/target/*.jar
+          asset_content_type: application/java-archive
+          overwrite: true
+      - name: Publish to GitHub Packages
+        run: mvn --batch-mode deploy
+        env:
+          GITHUB_TOKEN: ${{ secrets.PAT }}
+        working-directory: ${{ inputs.path }}

.github/workflows/release.yml

@@ -0,0 +1,42 @@
+---
+name: Release Please
+
+"on":
+  workflow_dispatch:
+  push:
+    branches:
+      - main
+
+concurrency:
+  group: release-please
+  cancel-in-progress: false
+
+jobs:
+  release-please:
+    name: Release Please
+    outputs:
+      manifest: ${{ toJSON(steps.rp.outputs) }}
+    runs-on: ubuntu-22.04
+    steps:
+      - name: Generate App Token
+        uses: tibdex/github-app-token@v1
+        id: generate-token
+        with:
+          app_id: ${{ secrets.APP_ID }}
+          private_key: ${{ secrets.APP_PRIVATE_KEY }}
+      - name: Release Please
+        id: rp
+        uses: GoogleCloudPlatform/[email protected]
+        with:
+          token: ${{ steps.generate-token.outputs.token }}
+  matrix:
+    if: ${{ fromJSON(needs.release-please.outputs.manifest).releases_created == 'true' }}
+    needs: [release-please]
+    secrets: inherit
+    strategy:
+      matrix:
+        path: ${{ fromJSON(fromJSON(needs.release-please.outputs.manifest).paths_released) }}
+    uses: ./.github/workflows/build.yml
+    with:
+      path: ${{ matrix.path }}
+      manifest: ${{ needs.release-please.outputs.manifest }}

release-please-config.json

@@ -0,0 +1,8 @@
+{
+  "packages": {
+    "sulla": {
+      "package-name": "oxygen",
+      "release-type": "maven"
+    }
+  }
+}