build-nym-vpn-core-android.yml

name: build-nym-vpn-core-android
on:
  workflow_dispatch:
  pull_request:
    paths:
      - ".github/workflows/build-nym-vpn-core-android.yml"
  workflow_call:
    outputs:
      RUST_VERSION:
        value: ${{ jobs.build-android.outputs.RUST_VERSION }}

env:
  CARGO_TERM_COLOR: always
  CARGO_TARGET: release
  WG_GO_LIB_PATH: ${{ github.workspace }}/build/lib/aarch64-linux-android
  WG_GO_LIB_NAME: wireguard-go_aarch64-linux-android
  UPLOAD_DIR_ANDROID: android_artifacts

jobs:
  build-wireguard-go-android:
    uses: ./.github/workflows/build-wireguard-go-android.yml

  build-android:
    needs: build-wireguard-go-android
    runs-on: ubuntu-22.04
    outputs:
      UPLOAD_DIR_ANDROID: ${{ env.UPLOAD_DIR_ANDROID }}
      RUST_VERSION: ${{ steps.rust-version.outputs.rustc }}
    steps:
      - name: Checkout repo
        uses: actions/checkout@v4

      - name: Install system dependencies
        run: |
          sudo apt-get update && sudo apt-get install -y libdbus-1-dev libmnl-dev libnftnl-dev protobuf-compiler

      - name: Install rust toolchain
        uses: brndnmtthws/rust-action-rustup@v1
        with:
          toolchain: stable
          components: rustfmt, clippy

      - name: Add android target
        run: |
          rustup target install aarch64-linux-android

      - name: Setup NDK
        uses: nttld/setup-ndk@v1
        id: setup-ndk
        with:
          ndk-version: r25c
          add-to-path: false

      - name: Set env
        shell: bash
        run: |
          echo "ANDROID_NDK_HOME=${{ steps.setup-ndk.outputs.ndk-path }}" >> $GITHUB_ENV
          echo "NDK_TOOLCHAIN_DIR=${{ steps.setup-ndk.outputs.ndk-path }}/toolchains/llvm/prebuilt/linux-x86_64/bin" >> $GITHUB_ENV

      - name: Install cargo deps
        run: |
          cargo install --locked cargo-ndk cargo-license

      - name: Download wireguard-go artifacts
        uses: actions/download-artifact@v4
        with:
          name: ${{ env.WG_GO_LIB_NAME }}
          path: ${{ env.WG_GO_LIB_PATH }}

      - name: Build nym-vpn-core for android
        working-directory: nym-vpn-core/crates/nym-vpn-lib
        env:
          RUSTFLAGS: "-L ${{ env.WG_GO_LIB_PATH }}"
          ANDROID_NDK_HOME: ${{ steps.setup-ndk.outputs.ndk-path }}
        run: |
          cargo ndk -t arm64-v8a -o ../target/aarch64-linux-android/release build --${{ env.CARGO_TARGET }}
          ls -la ../target/aarch64-linux-android/release/ || true

      - name: Get rust version used for build
        id: rust-version
        run: |
          echo "rustc=$(rustc -V)" >> $GITHUB_OUTPUT

      - name: Move things around to prepare for upload
        env:
          SRC_BINARY: nym-vpn-core/target/aarch64-linux-android/${{ env.CARGO_TARGET }}/
        run: |
          mkdir ${{ env.UPLOAD_DIR_ANDROID }}
          cp -vpr ${{ env.SRC_BINARY }}/libnym_vpn_lib.so ${{ env.UPLOAD_DIR_ANDROID }}

      - name: Upload artifacts
        uses: actions/upload-artifact@v4
        with:
          name: ${{ env.UPLOAD_DIR_ANDROID }}
          path: ${{ env.UPLOAD_DIR_ANDROID }}
          retention-days: 1