Make the root directory of the repository configurable in corehost/bu…

…ild.cmd and corehost/build.sh.

src/corehost/build.cmd

@@ -4,9 +4,6 @@ setlocal
 :SetupArgs
 :: Initialize the args that will be passed to cmake
 set __nativeWindowsDir=%~dp0Windows
-set __binDir=%~dp0..\..\artifacts\bin
-set __objDir=%~dp0..\..\artifacts\obj
-set __rootDir=%~dp0..\..
 set __CMakeBinDir=""
 set __IntermediatesDir=""
 set __BuildArch=x64
@@ -40,6 +37,7 @@ if /i [%1] == [policyver]   (set __HostPolicyVersion=%2&&shift&&shift&goto Arg_L
 if /i [%1] == [commit]      (set __CommitSha=%2&&shift&&shift&goto Arg_Loop)
 
 if /i [%1] == [incremental-native-build] ( set __IncrementalNativeBuild=1&&shift&goto Arg_Loop)
+if /i [%1] == [rootDir]     ( set __rootDir=%2&&shift&&shift&goto Arg_Loop)
 
 shift
 goto :Arg_Loop
@@ -87,6 +85,15 @@ set __VSVersion=15 2017
 call "%VS150COMNTOOLS%..\..\VC\Auxiliary\Build\vcvarsall.bat" %__VCBuildArch%
 
 :SetupDirs
+
+if %__rootDir% == "" (
+    echo Root directory must be provided via the rootDir parameter.
+    exit /b 1
+)
+
+set __binDir=%__rootDir%\artifacts\bin
+set __objDir=%__rootDir%\artifacts\obj
+
 :: Setup to cmake the native components
 echo Commencing build of corehost
 echo.
@@ -137,8 +144,6 @@ goto :Failure
 :: Build the project created by Cmake
 set __msbuildArgs=/p:Platform=%__BuildArch% /p:PlatformToolset="%__PlatformToolset%"
 
-cd %__rootDir%
-
 SET __NativeBuildArgs=/t:rebuild
 if /i "%__IncrementalNativeBuild%" == "1" SET __NativeBuildArgs=
 

src/corehost/build.proj

@@ -31,6 +31,7 @@
       <BuildArgs Condition="'$(PortableBuild)' == 'true'">$(BuildArgs) -portable</BuildArgs>
       <BuildArgs Condition="'$(CrossBuild)' == 'true'">$(BuildArgs) --cross</BuildArgs>
       <BuildArgs Condition="'$(StripSymbols)' == 'true'">$(BuildArgs) --stripsymbols</BuildArgs>
+      <BuildArgs>$(BuildArgs) --rootdir $(RepoRoot)</BuildArgs>
     </PropertyGroup>
 
     <!--
@@ -85,6 +86,7 @@
       <BuildArgs>$(ConfigurationGroup) $(TargetArchitecture) apphostver $(AppHostVersion) hostver $(HostVersion) fxrver $(HostResolverVersion) policyver $(HostPolicyVersion) commit $(LatestCommit) rid $(OutputRid)</BuildArgs>
       <BuildArgs Condition="'$(PortableBuild)' == 'true'">$(BuildArgs) portable</BuildArgs>
       <BuildArgs Condition="'$(IncrementalNativeBuild)' == 'true'">$(BuildArgs) incremental-native-build</BuildArgs>
+      <BuildArgs>$(BuildArgs) rootdir $(RepoRoot)</BuildArgs>
     </PropertyGroup>
 
     <!--

src/corehost/build.sh

@@ -58,9 +58,10 @@ init_rid_plat()
 
 usage()
 {
-    echo "Usage: $0 --configuration <configuration> --arch <Architecture> --hostver <Dotnet exe version> --apphostver <app host exe version> --fxrver <HostFxr library version> --policyver <HostPolicy library version> --commithash <Git commit hash> [--xcompiler <Cross C++ Compiler>]"
+    echo "Usage: $0 --rootdir <path> --configuration <configuration> --arch <Architecture> --hostver <Dotnet exe version> --apphostver <app host exe version> --fxrver <HostFxr library version> --policyver <HostPolicy library version> --commithash <Git commit hash> [--xcompiler <Cross C++ Compiler>]"
     echo ""
     echo "Options:"
+    echo "  --rootdir <path>                  Path to the root of the repository. Required."
     echo "  --configuration <configuration>   Build configuration (Debug, Release)"
     echo "  --arch <Architecture>             Target Architecture (x64, x86, arm, arm64, armel)"
     echo "  --hostver <Dotnet host version>   Version of the dotnet executable"
@@ -85,9 +86,6 @@ while [ -h "$SOURCE" ]; do # resolve $SOURCE until the file is no longer a symli
   [[ "$SOURCE" != /* ]] && SOURCE="$DIR/$SOURCE" # if $SOURCE was a relative symlink, we need to resolve it relative to the path where the symlink file was located
 done
 DIR="$( cd -P "$( dirname "$SOURCE" )" && pwd )"
-RootRepo="$DIR/../.."
-
-__bin_dir="$RootRepo/artifacts/bin"
 __build_arch=
 __host_ver=
 __apphost_ver=
@@ -99,8 +97,6 @@ __portableBuildArgs=
 __configuration=Debug
 __linkPortable=0
 __cmake_defines=
-__baseIntermediateOutputPath="$RootRepo/artifacts/obj"
-__versionSourceFile="$__baseIntermediateOutputPath/_version.c"
 __cmake_bin_prefix=
 
 while [ "$1" != "" ]; do
@@ -148,12 +144,26 @@ while [ "$1" != "" ]; do
         --stripsymbols)
             __cmake_defines="${__cmake_defines} -DSTRIP_SYMBOLS=true"
             ;;
+        --rootdir)
+           shift
+           RootRepo=$1
+           ;;
         *)
         echo "Unknown argument to build.sh $1"; usage; exit 1
     esac
     shift
 done
 
+if [ "$RootRepo" == "" ]; then
+    usage
+fi
+
+SetupRoot="$RootRepo/src/setup"
+
+__bin_dir="$RootRepo/artifacts/bin"
+__baseIntermediateOutputPath="$RootRepo/artifacts/obj"
+__versionSourceFile="$__baseIntermediateOutputPath/_version.c"
+
 __cmake_defines="${__cmake_defines} -DCMAKE_BUILD_TYPE=${__configuration} ${__portableBuildArgs}"
 
 mkdir -p "$__baseIntermediateOutputPath"
@@ -180,7 +190,7 @@ __cmake_defines="${__cmake_defines} ${__arch_define}"
 # Configure environment if we are doing a cross compile.
 if [ "$__CrossBuild" == 1 ]; then
     if ! [[ -n $ROOTFS_DIR ]]; then
-        export ROOTFS_DIR="$RootRepo/cross/rootfs/$__build_arch"
+        export ROOTFS_DIR="$SetupRoot/cross/rootfs/$__build_arch"
     fi
 fi