release-aar.yml

name: Release AAR

on:
  push:
    tags:
      - "v*"
  workflow_dispatch:

permissions:
  contents: write

jobs:
  build-and-release:
    name: Build AAR and attach to release
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v7
      - uses: actions/setup-java@1bcf9fb12cf4aa7d266a90ae39939e61372fe520 # v5
        with:
          distribution: temurin
          java-version: "25"
      - uses: android-actions/setup-android@40fd30fb8d7440372e1316f5d1809ec01dcd3699 # v4
      - name: Install SDK packages
        run: sdkmanager "platforms;android-35" "build-tools;36.0.0"
      - name: Build AAR and run unit tests
        run: ./gradlew :cobs:testDebugUnitTest :cobs:assembleRelease --console=plain
      - name: Stage artifact
        id: stage
        run: |
          version="${GITHUB_REF_NAME#v}"
          if [ "$version" = "$GITHUB_REF_NAME" ]; then version="dev"; fi
          mkdir -p dist
          cp cobs/build/outputs/aar/cobs-release.aar "dist/cobs_codec-${version}.aar"
          echo "version=$version" >> "$GITHUB_OUTPUT"
      - name: Upload as workflow artifact
        uses: actions/upload-artifact@043fb46d1a93c77aae656e7c1c64a875d1fc6a0a # v7
        with:
          name: cobs_codec-aar-release
          path: dist/*.aar
      - name: Attach to GitHub release
        if: startsWith(github.ref, 'refs/tags/')
        uses: softprops/action-gh-release@718ea10b132b3b2eba29c1007bb80653f286566b # v3
        with:
          files: dist/*.aar
          name: cobs_codec ${{ steps.stage.outputs.version }}
          body: |
            Pure-Kotlin **COBS / COBS-R** for Android, packaged as an `.aar`.

            Byte-identical to the Dart [`cobs_codec`](https://pub.dev/packages/cobs_codec)
            (validated by a 20,000-vector differential test against the reference).

            Add to your app:
            ```kotlin
            implementation(files("libs/cobs_codec-${{ steps.stage.outputs.version }}.aar"))
            ```