Feature/android builds on windows clean

.github/workflows/android.yml

@@ -1,6 +1,6 @@
 name: Android Builds
 
-on: 
+on:
   pull_request:
     types: [opened, reopened, synchronize]
 
@@ -14,13 +14,15 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        os: [ubuntu-latest, macos-latest]
+        os: [ubuntu-latest, macos-latest, windows-latest]
         architecture: ["x64",]
         include:
         - os: ubuntu-latest
           architecture: "x64"
         - os: macos-latest
           architecture: "x64"
+        - os: windows-latest
+          architecture: "x64"
 
     steps:
       - uses: actions/checkout@v2
@@ -38,10 +40,15 @@ jobs:
           python-version: 3.7
           architecture: ${{ matrix.architecture }}
 
+      - name: Add msbuild to PATH
+        if: startsWith(matrix.os, 'windows')
+        uses: microsoft/[email protected]
+
       - name: Install prerequisites
+        shell: bash
         run: |
           build_scripts/android/install_prereqs.sh
-      
+
       - name: Cache ccache files
         id: cache_ccache
         uses: actions/cache@v2
@@ -50,6 +57,7 @@ jobs:
           key: dev-test-ccache-${{ env.MATRIX_UNIQUE_NAME }}
 
       - name: Build SDK
+        shell: bash
         run: |
           build_scripts/android/build.sh android_build .
 

build_scripts/android/build.sh

@@ -20,8 +20,6 @@ if [[ -n $(ls) ]]; then
     exit 2
 fi
 cd -
-# Turn buildpath into an absolute path for use later with rsync.
-buildpath=$( cd "${buildpath}" ; pwd -P )
 
 # If NDK_ROOT is not set or is the wrong version, use to the version in /tmp.
 if [[ -z "${NDK_ROOT}" || ! $(grep -q "Pkg\.Revision = 16\." "${NDK_ROOT}/source.properties") ]]; then
@@ -54,6 +52,15 @@ for lib in *; do
     fi
 done
 set -x
-# Use rsync to copy the relevent paths to the destination directory.
-rsync -aR "${paths[@]}" "${buildpath}/"
 
+if [[ $(uname) == "Linux" ]] || [[ $(uname) == "Darwin" ]]; then
+  # Turn buildpath into an absolute path for use later with rsync.
+  buildpath=$( cd "${buildpath}" ; pwd -P )
+  # Use rsync to copy the relevent paths to the destination directory.
+  rsync -aR "${paths[@]}" "${buildpath}/"
+else
+  # rsync has to be specifically installed on windows bash (including github runners)
+  # Also, rsync with absolute destination path doesn't work on Windows.
+  # Using a simple copy instead of rsync on Windows.
+  cp -R --parents "${paths[@]}" "${buildpath}"
+fi

build_scripts/android/install_prereqs.sh

@@ -13,8 +13,12 @@ elif [[ $(uname) == "Linux" ]]; then
         echo "::set-env name=CCACHE_INSTALLED::1"
     fi
 else
-    echo "Unsupported platform, this script must run on a MacOS or Linux machine."
-    exit 1
+    platform=windows
+    # On Windows, we have an additional dependency for Strings
+    curl -LSs \	    curl -LSs \
+        "https://download.sysinternals.com/files/Strings.zip" \
+         --output Strings.zip
+    unzip -q Strings.zip && rm -f Strings.zip
 fi
 
 if [[ -z $(which cmake) ]]; then
@@ -28,11 +32,16 @@ if [[ -z $(which python) ]]; then
 else
     updated_pip=0
     if ! $(echo "import absl"$'\n'"import google.protobuf" | python - 2> /dev/null); then
-	echo "Installing python packages."
-	set -x
-	sudo python -m pip install --upgrade pip
-	pip install absl-py protobuf
-	set +x
+      echo "Installing python packages."
+      set -x
+      # On Windows bash shell, sudo doesn't exist
+      if [[ $(uname) == "Linux" ]] || [[ $(uname) == "Darwin" ]]; then
+        sudo python -m pip install --upgrade pip
+      else
+        python -m pip install  --upgrade pip
+      fi
+      pip install absl-py protobuf
+      set +x
     fi
 fi