add mac build scripts

engine/Build.bee.cs

 
     static void Main()
     {
-        flutterRoot = Environment.GetEnvironmentVariable("FLUTTER_ROOT");
+        flutterRoot = Environment.GetEnvironmentVariable("FLUTTER_ROOT_PATH");
         if (string.IsNullOrEmpty(flutterRoot))
         {
             flutterRoot = Environment.GetEnvironmentVariable("USERPROFILE") + "/engine/src";

engine/Scripts/full_build.sh

+engine_path=
+platform=
+runtime_mode
+gn_params=""
+optimize="--unoptimized"
+ninja_params=""
+bitcode=
+
+while getopts ":r:p:m:eo" opt
+do
+    case $opt in
+        r)
+        engine_path=$OPTARG # set engine_path, depot_tools and flutter engine folder will be put into this path
+        ;;
+        p)
+        platform=$OPTARG
+        ;;
+        m)
+        runtime_mode=$OPTARG
+        ;;
+        e)
+        bitcode="--bitcode" # enable-bitcode switch
+        ;;
+        o)
+        optimize="" # optimize code switch
+        ;;
+        ?)
+        echo "unknown param"
+        exit 1;;
+    esac
+done
+
+case $platform in
+    "andorid")  echo 'You select android'
+    ;;
+    "ios")  echo 'You select ios'
+    ;;
+    "mac")  ./lib_build_mac.sh -m $runtime_mode -r $engine_path
+    ;;
+    "windows")  echo 'You select windows'
+    ;;
+    *)  echo "unknown platform, only support \"android\",\"ios\",\"mac\",\"windows\""
+    ;;
+esac
+

engine/Scripts/lib_build_mac.sh

+work_path=$(pwd)
+engine_path=
+platform=
+gn_params=""
+optimize="--unoptimized"
+ninja_params=""
+
+while getopts ":r:p:m:eo" opt
+do
+    case $opt in
+        r)
+        engine_path=$OPTARG # set engine_path, depot_tools and flutter engine folder will be put into this path
+        ;;
+        p)
+        gn_params="$gn_params --$OPTARG" # set the target platform android/ios/linux
+        ;;
+        m)
+        runtime_node=$OPTARG
+        gn_params="$gn_params --runtime-mode=$runtime_node" # set runtime mode release/debug/profile
+        if [ "$runtime_node" == "release" ];then
+          ninja_params=" -C out/host_release flutter/third_party/txt:txt_lib"
+        elif [ "$runtime_node" == "debug" ];then
+          ninja_params=" -C out/host_debug_unopt/ flutter/third_party/txt:txt_lib"
+        elif [ "$runtime_node" == "profile" ];then
+          echo "not support profile build yet"
+          exit 1
+        fi
+        ;;
+        e)
+        gn_params="$gn_params --bitcode" # enable-bitcode switch
+        ;;
+        o)
+        optimize="" # optimize code switch
+        ;;
+        ?)
+        echo "unknown param"
+        exit 1;;
+    esac
+done
+
+gn_params="$gn_params $optimize"
+
+#set environment variable
+function isexist()
+{
+    source_str=$1
+    test_str=$2
+    
+    strings=$(echo $source_str | sed 's/:/ /g')
+    for str in $strings
+    do  
+        if [ $test_str = $str ]; then
+            return 0
+        fi  
+    done
+    return 1
+}
+
+if [ ! $FLUTTER_ROOT_PATH ];then
+  echo "export FLUTTER_ROOT_PATH=$engine_path/engine/src" >> ~/.bash_profile
+else
+  echo "This environment variable has been set, no need to set it again..."
+fi
+
+if isexist $PATH $engine_path/depot_tools; then 
+  echo "This environment variable has been set, no need to set it again..."
+else 
+  echo "export PATH=$engine_path/depot_tools:\$PATH" >> ~/.bash_profile
+fi
+source ~/.bash_profile
+
+echo "\nGetting Depot Tools..." 
+if [ ! -n "$engine_path" ]; then   
+  echo "Flutter engine path is null, please set the path by using \"-r\" param to set a engine path."  
+  exit 1
+else
+  echo "$engine_path"
+fi    
+cd $engine_path	
+if [ -d 'depot_tools' ] && [ -d "depot_tools/.git" ];
+then
+  echo "depot_tools already installed, skip download"
+else
+  git clone https://chromium.googlesource.com/chromium/tools/depot_tools.git
+  gclient
+fi
+
+echo "\nGetting flutter engine..."
+if [ ! -d 'engine' ];then
+  mkdir engine
+  else
+  echo "engine folder already exist, skip create"
+fi
+cd engine
+#git@github.com:guanghuispark/engine.git is a temp repo, replace it later
+echo "solutions = [
+  {
+    \"managed\": False,
+    \"name\": \"src/flutter\",
+    \"url\": \"git@github.com:guanghuispark/engine.git\", 
+    \"custom_deps\": {},
+    \"deps_file\": \"DEPS\",
+    \"safesync_url\": \"\",
+  },
+]" > .gclient
+
+gclient sync
+
+cd src/flutter
+git checkout flutter-1.17-candidate.5
+gclient sync -D
+
+#apply patch to Build.gn
+cd third_party/txt
+cp -f $work_path/patches/BUILD.gn.patch BUILD.gn.patch
+patch < BUILD.gn.patch -N
+
+echo "\nStarting compile engine..."
+cd $engine_path/engine/src/build/mac
+cp -f $work_path/patches/find_sdk.patch find_sdk.patch
+patch < find_sdk.patch -N
+cd ../..
+./flutter/tools/gn $gn_params
+
+echo "icu_use_data_file=false" >> out/host_debug_unopt/args.gn
+ninja $ninja_params
+
+echo "\nStarting build engine..."
+#run mono
+cd $work_path 
+cd ..
+echo "flutter root : $FLUTTER_ROOT"
+mono bee.exe mac

engine/Scripts/patches/BUILD.gn.patch

+--- a/third_party/txt/BUILD.gn
++++ b/third_party/txt/BUILD.gn
+@@ -141,6 +141,7 @@
+     "//third_party/harfbuzz",
+     "//third_party/icu",
+     "//third_party/skia",
++    "//third_party/skia/modules/skottie",
+   ]
+ 
+   deps = [
+@@ -339,3 +340,10 @@
+     deps += [ "//third_party/skia/modules/skparagraph" ]
+   }
+ }
++
++static_library("txt_lib") {
++  complete_static_lib = true
++  deps = [
++    ":txt",
++  ]
++}

engine/Scripts/patches/find_sdk.patch

+diff --git a/Users/unity/Documents/GitHub/EngineBuildTool/engine/src/build/mac/find_sdk.py b/Users/unity/Desktop/find_sdk.py
+index 0534766..e503ced 100755
+--- a/Users/unity/Documents/GitHub/EngineBuildTool/engine/src/build/mac/find_sdk.py
++++ b/Users/unity/Desktop/find_sdk.py
+@@ -55,7 +55,7 @@ def main():
+     sdk_dir = xcode43_sdk_path
+   else:
+     sdk_dir = os.path.join(out.rstrip(), 'SDKs')
+-  sdks = [re.findall('^MacOSX(10\.\d+)\.sdk$', s) for s in os.listdir(sdk_dir)]
++  sdks = [re.findall('^MacOSX(11\.\d+)\.sdk$', s) for s in os.listdir(sdk_dir)]
+   sdks = [s[0] for s in sdks if s]  # [['10.5'], ['10.6']] => ['10.5', '10.6']
+   sdks = [s for s in sdks  # ['10.5', '10.6'] => ['10.6']
+           if parse_version(s) >= parse_version(min_sdk_version)]