ci: add unit-test workflow for Android NDK builds

Author: HanSoBored

.github/workflows/unit-test.yml

@@ -0,0 +1,62 @@
+name: Unit Test (Android NDK)
+
+on:
+  workflow_dispatch:
+  push:
+    branches:
+      - unit-test
+
+jobs:
+  test-android-build:
+    name: Build Android (${{ matrix.arch }})
+    runs-on: ubuntu-latest
+    strategy:
+      fail-fast: false
+      matrix:
+        include:
+          - arch: android-aarch64
+            goarch: arm64
+          - arch: android-x86_64
+            goarch: amd64
+          - arch: android-armv7
+            goarch: arm
+            goarm: "7"
+
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Set up Go
+        uses: actions/setup-go@v5
+        with:
+          go-version: '1.25'
+
+      - name: Install NDK
+        run: |
+          NDK_VERSION="25.2.9519653"
+          cd /tmp
+          wget -q https://dl.google.com/android/repository/android-ndk-${NDK_VERSION}-linux.zip
+          unzip -q android-ndk-${NDK_VERSION}-linux.zip
+          
+          ANDROID_NDK_HOME=/tmp/android-ndk-${NDK_VERSION}
+          TOOLCHAIN=$ANDROID_NDK_HOME/toolchains/llvm/prebuilt/linux-x86_64
+          
+          echo "ANDROID_NDK_HOME=$ANDROID_NDK_HOME" >> $GITHUB_ENV
+          echo "TOOLCHAIN=$TOOLCHAIN" >> $GITHUB_ENV
+          
+          if [ "${{ matrix.goarch }}" = "arm64" ]; then
+            echo "CC=$TOOLCHAIN/bin/aarch64-linux-android21-clang" >> $GITHUB_ENV
+          elif [ "${{ matrix.goarch }}" = "amd64" ]; then
+            echo "CC=$TOOLCHAIN/bin/x86_64-linux-android21-clang" >> $GITHUB_ENV
+          elif [ "${{ matrix.goarch }}" = "arm" ]; then
+            echo "CC=$TOOLCHAIN/bin/armv7a-linux-androideabi21-clang" >> $GITHUB_ENV
+          fi
+
+      - name: Build Android Binary
+        env:
+          GOOS: android
+          GOARCH: ${{ matrix.goarch }}
+          GOARM: ${{ matrix.goarm || '' }}
+          CGO_ENABLED: 1
+        run: |
+          go build -ldflags="-s -w" -o ${{ matrix.arch }} ./cmd/autolinux
+          file ${{ matrix.arch }}