Update build.yml

Author: p-web-git

.github/workflows/build.yml

@@ -5,37 +5,43 @@ on:
 
 jobs:
   build:
-    runs-on: self-hosted
-    env:
-      ANDROID_NDK_ZIP: android-ndk-r28c-linux.zip
-      ANDROID_NDK_DIR: android-ndk-r28c
-      # go install will put the binary here
-      GOBIN: ${{ github.workspace }}/out
+    runs-on: ubuntu-latest
 
     steps:
       - uses: actions/checkout@v4
 
-      # - name: Set up Go
-      #   uses: actions/setup-go@v5
-      #   with:
-      #     go-version: '1.22.x'
+      - name: Set up Go
+        uses: actions/setup-go@v5
+        with:
+          go-version: '1.22.x'
 
-      # - name: Get Android NDK
-      #   run: |
-      #     wget https://dl.google.com/android/repository/${ANDROID_NDK_ZIP}
-      #     unzip -q ${ANDROID_NDK_ZIP}
+      - name: Download Android NDK (r28c)
+        run: |
+          # wget -q https://dl.google.com/android/repository/android-ndk-r28c-linux.zip
+          # unzip -q android-ndk-r28c-linux.zip
+          echo "ANDROID_NDK=$PWD/android-ndk-r28c" >> $GITHUB_ENV
 
-      - name: Build Kopia (Android/arm64, CGO, netcgo)
+      - name: Build Kopia (Android/arm64, CGO, netcgo) via go install
         env:
           ANDROID_NDK: ${{ env.ANDROID_NDK }}
         run: |
+          # Android/arm64 cross-compile with CGO and cgo DNS resolver
           export CC="$ANDROID_NDK/toolchains/llvm/prebuilt/linux-x86_64/bin/aarch64-linux-android24-clang"
           export CXX="$ANDROID_NDK/toolchains/llvm/prebuilt/linux-x86_64/bin/aarch64-linux-android24-clang++"
-          export GOOS=android GOARCH=arm64 CGO_ENABLED=1
-          # crucial: GOBIN must be unset for cross installs
+          export GOOS=android
+          export GOARCH=arm64
+          export CGO_ENABLED=1
+
+          # IMPORTANT: GOBIN must be unset for cross-installs
+          # go install will place the binary under: $(go env GOPATH)/bin/${GOOS}_${GOARCH}/kopia
           env -u GOBIN go install -tags netcgo github.com/kopia/[email protected]
+
+          # Collect the cross-compiled binary
+          TARGET_BIN_DIR="$(go env GOPATH)/bin/${GOOS}_${GOARCH}"
+          ls -l "$TARGET_BIN_DIR"
           mkdir -p out
-          cp "$(go env GOPATH)/bin/kopia" out/kopia
+          cp "$TARGET_BIN_DIR/kopia" out/kopia
+          file out/kopia
 
       - name: Upload Android binary
         uses: actions/upload-artifact@v4