Windows arm64 support

.github/workflows/main.yml

@@ -164,6 +164,9 @@ jobs:
       NO_PERL: 1
       GIT_CONFIG_PARAMETERS: "'user.name=CI' 'user.email=ci@git'"
     runs-on: windows-latest
+    strategy:
+      matrix:
+        arch: [x64, arm64]
     steps:
     - uses: actions/checkout@v1
     - name: download git-sdk-64-minimal
@@ -182,6 +185,7 @@ jobs:
         unzip artifacts.zip
         rm artifacts.zip
     - name: download vcpkg artifacts
+      if: matrix.arch == 'x64'
       shell: powershell
       run: |
         $urlbase = "https://dev.azure.com/git/git/_apis/build/builds"
@@ -190,20 +194,23 @@ jobs:
         (New-Object Net.WebClient).DownloadFile($downloadUrl, "compat.zip")
         Expand-Archive compat.zip -DestinationPath . -Force
         Remove-Item compat.zip
+    - name: install vcpkg deps for arm64
+      if: matrix.arch == 'arm64'
+      run: .\compat\vcbuild\vcpkg_install.bat arm64-windows
     - name: add msbuild to PATH
       uses: microsoft/setup-msbuild@v1
     - name: copy dlls to root
       shell: powershell
       run: |
-        & compat\vcbuild\vcpkg_copy_dlls.bat release
+        & compat\vcbuild\vcpkg_copy_dlls.bat release ${{ matrix.arch }}-windows
         if (!$?) { exit(1) }
     - name: generate Visual Studio solution
       shell: bash
       run: |
-        cmake `pwd`/contrib/buildsystems/ -DCMAKE_PREFIX_PATH=`pwd`/compat/vcbuild/vcpkg/installed/x64-windows \
-        -DMSGFMT_EXE=`pwd`/git-sdk-64-minimal/mingw64/bin/msgfmt.exe -DPERL_TESTS=OFF -DPYTHON_TESTS=OFF -DCURL_NO_CURL_CMAKE=ON
+        cmake `pwd`/contrib/buildsystems/ -DCMAKE_PREFIX_PATH=`pwd`/compat/vcbuild/vcpkg/installed/${{ matrix.arch }}-windows \
+        -DMSGFMT_EXE=`pwd`/git-sdk-64-minimal/mingw64/bin/msgfmt.exe -DPERL_TESTS=OFF -DPYTHON_TESTS=OFF -DCURL_NO_CURL_CMAKE=ON -DCMAKE_GENERATOR_PLATFORM=${{ matrix.arch }} -DVCPKG_ARCH=${{ matrix.arch }}-windows
     - name: MSBuild
-      run: msbuild git.sln -property:Configuration=Release -property:Platform=x64 -maxCpuCount:4 -property:PlatformToolset=v142
+      run: msbuild git.sln -property:Configuration=Release -property:Platform=${{ matrix.arch }} -maxCpuCount:4 -property:PlatformToolset=v142
     - name: bundle artifact tar
       shell: powershell
       env:
@@ -217,7 +224,7 @@ jobs:
     - name: upload build artifacts
       uses: actions/upload-artifact@v1
       with:
-        name: vs-artifacts
+        name: vs-artifacts-${{ matrix.arch }}
         path: artifacts
   vs-test:
     runs-on: windows-latest
@@ -235,7 +242,7 @@ jobs:
     - name: download build artifacts
       uses: actions/download-artifact@v1
       with:
-        name: vs-artifacts
+        name: vs-artifacts-x64
         path: ${{github.workspace}}
     - name: extract build artifacts
       shell: bash

compat/bswap.h

@@ -74,7 +74,7 @@ static inline uint64_t git_bswap64(uint64_t x)
 }
 #endif
 
-#elif defined(_MSC_VER) && (defined(_M_IX86) || defined(_M_X64))
+#elif defined(_MSC_VER) && (defined(_M_IX86) || defined(_M_X64) || defined(_M_ARM64))
 
 #include <stdlib.h>
 

compat/vcbuild/README

@@ -6,7 +6,11 @@ The Steps to Build Git with VS2015 or VS2017 from the command line.
    Prompt or from an SDK bash window:
 
    $ cd <repo_root>
-   $ ./compat/vcbuild/vcpkg_install.bat
+   $ ./compat/vcbuild/vcpkg_install.bat x64-windows
+
+   or
+
+   $ ./compat/vcbuild/vcpkg_install.bat arm64-windows
 
    The vcpkg tools and all of the third-party sources will be installed
    in this folder:

compat/vcbuild/vcpkg_copy_dlls.bat

@@ -15,7 +15,12 @@ REM ================================================================
 	@FOR /F "delims=" %%D IN ("%~dp0") DO @SET cwd=%%~fD
 	cd %cwd%
 
-	SET arch=x64-windows
+	SET arch=%2
+	IF NOT DEFINED arch (
+		echo defaulting to 'x64-windows`. Invoke %0 with 'x86-windows', 'x64-windows', or 'arm64-windows'
+		set arch=x64-windows
+	)
+
 	SET inst=%cwd%vcpkg\installed\%arch%
 
 	IF [%1]==[release] (

compat/vcbuild/vcpkg_install.bat

@@ -31,6 +31,12 @@ REM ================================================================
 
 	SETLOCAL EnableDelayedExpansion
 
+	SET arch=%1
+	IF NOT DEFINED arch (
+		echo defaulting to 'x64-windows`. Invoke %0 with 'x86-windows', 'x64-windows', or 'arm64-windows'
+		set arch=x64-windows
+	)
+
 	@FOR /F "delims=" %%D IN ("%~dp0") DO @SET cwd=%%~fD
 	cd %cwd%
 
@@ -55,9 +61,8 @@ REM ================================================================
 	echo Successfully installed %cwd%vcpkg\vcpkg.exe
 
 :install_libraries
-	SET arch=x64-windows
 
-	echo Installing third-party libraries...
+	echo Installing third-party libraries(%arch%)...
 	FOR %%i IN (zlib expat libiconv openssl libssh2 curl) DO (
 	    cd %cwd%vcpkg
 	    IF NOT EXIST "packages\%%i_%arch%" CALL :sub__install_one %%i
@@ -80,14 +85,47 @@ REM ================================================================
 :sub__install_one
 	echo     Installing package %1...
 
+	call :%1_features
+
 	REM vcpkg may not be reliable on slow, intermittent or proxy
 	REM connections, see e.g.
 	REM https://social.msdn.microsoft.com/Forums/windowsdesktop/en-US/4a8f7be5-5e15-4213-a7bb-ddf424a954e6/winhttpsendrequest-ends-with-12002-errorhttptimeout-after-21-seconds-no-matter-what-timeout?forum=windowssdk
 	REM which explains the hidden 21 second timeout
 	REM (last post by Dave : Microsoft - Windows Networking team)
 
-	.\vcpkg.exe install %1:%arch%
+	.\vcpkg.exe install %1%features%:%arch%
 	IF ERRORLEVEL 1 ( EXIT /B 1 )
 
 	echo     Finished %1
 	goto :EOF
+
+::
+:: features for each vcpkg to install
+:: there should be an entry here for each package to install
+:: 'set features=' means use the default otherwise
+:: 'set features=[comma-delimited-feature-set]' is the syntax
+::
+
+:zlib_features
+set features=
+goto :EOF
+
+:expat_features
+set features=
+goto :EOF
+
+:libiconv_features
+set features=
+goto :EOF
+
+:openssl_features
+set features=
+goto :EOF
+
+:libssh2_features
+set features=
+goto :EOF
+
+:curl_features
+set features=[core,openssl,schannel]
+goto :EOF

contrib/buildsystems/CMakeLists.txt

@@ -52,9 +52,9 @@ if(WIN32)
 	set(VCPKG_DIR "${CMAKE_SOURCE_DIR}/compat/vcbuild/vcpkg")
 	if(MSVC AND NOT EXISTS ${VCPKG_DIR})
 		message("Initializing vcpkg and building the Git's dependencies (this will take a while...)")
-		execute_process(COMMAND ${CMAKE_SOURCE_DIR}/compat/vcbuild/vcpkg_install.bat)
+		execute_process(COMMAND ${CMAKE_SOURCE_DIR}/compat/vcbuild/vcpkg_install.bat ${VCPKG_ARCH})
 	endif()
-	list(APPEND CMAKE_PREFIX_PATH "${VCPKG_DIR}/installed/x64-windows")
+	list(APPEND CMAKE_PREFIX_PATH "${VCPKG_DIR}/installed/${VCPKG_ARCH}")
 
 	# In the vcpkg edition, we need this to be able to link to libcurl
 	set(CURL_NO_CURL_CMAKE ON)
@@ -954,7 +954,7 @@ file(APPEND ${CMAKE_BINARY_DIR}/GIT-BUILD-OPTIONS "NO_GETTEXT='${NO_GETTEXT}'\n"
 file(APPEND ${CMAKE_BINARY_DIR}/GIT-BUILD-OPTIONS "RUNTIME_PREFIX='${RUNTIME_PREFIX}'\n")
 file(APPEND ${CMAKE_BINARY_DIR}/GIT-BUILD-OPTIONS "NO_PYTHON='${NO_PYTHON}'\n")
 if(WIN32)
-	file(APPEND ${CMAKE_BINARY_DIR}/GIT-BUILD-OPTIONS "PATH=\"$PATH:$TEST_DIRECTORY/../compat/vcbuild/vcpkg/installed/x64-windows/bin\"\n")
+	file(APPEND ${CMAKE_BINARY_DIR}/GIT-BUILD-OPTIONS "PATH=\"$PATH:$TEST_DIRECTORY/../compat/vcbuild/vcpkg/installed/${VCPKG_ARCH}/bin\"\n")
 endif()
 
 #Make the tests work when building out of the source tree

contrib/buildsystems/Generators/Vcxproj.pm

@@ -116,12 +116,21 @@ sub createProject {
       <Configuration>Release</Configuration>
       <Platform>x64</Platform>
     </ProjectConfiguration>
+    <ProjectConfiguration Include="Debug|ARM64">
+      <Configuration>Debug</Configuration>
+      <Platform>ARM64</Platform>
+    </ProjectConfiguration>
+    <ProjectConfiguration Include="Release|ARM64">
+      <Configuration>Release</Configuration>
+      <Platform>ARM64</Platform>
+    </ProjectConfiguration>
   </ItemGroup>
   <PropertyGroup Label="Globals">
     <ProjectGuid>$uuid</ProjectGuid>
     <Keyword>Win32Proj</Keyword>
     <VCPKGArch Condition="'\$(Platform)'=='Win32'">x86-windows</VCPKGArch>
-    <VCPKGArch Condition="'\$(Platform)'!='Win32'">x64-windows</VCPKGArch>
+    <VCPKGArch Condition="'\$(Platform)'=='x64'">x64-windows</VCPKGArch>
+    <VCPKGArch Condition="'\$(Platform)'=='ARM64'">arm64-windows</VCPKGArch>
     <VCPKGArchDirectory>$cdup\\compat\\vcbuild\\vcpkg\\installed\\\$(VCPKGArch)</VCPKGArchDirectory>
     <VCPKGBinDirectory Condition="'\$(Configuration)'=='Debug'">\$(VCPKGArchDirectory)\\debug\\bin</VCPKGBinDirectory>
     <VCPKGLibDirectory Condition="'\$(Configuration)'=='Debug'">\$(VCPKGArchDirectory)\\debug\\lib</VCPKGLibDirectory>
@@ -142,7 +151,7 @@ sub createProject {
   </PropertyGroup>
   <PropertyGroup>
     <ConfigurationType>$config_type</ConfigurationType>
-    <PlatformToolset>v140</PlatformToolset>
+    <PlatformToolset>v142</PlatformToolset>
     <!-- <CharacterSet>UTF-8</CharacterSet> -->
     <OutDir>..\\</OutDir>
     <!-- <IntDir>\$(ProjectDir)\$(Configuration)\\</IntDir> -->
@@ -186,7 +195,7 @@ EOM
     <PreBuildEvent Condition="!Exists('$cdup\\compat\\vcbuild\\vcpkg\\installed\\\$(VCPKGArch)\\include\\openssl\\ssl.h')">
       <Message>Initialize VCPKG</Message>
       <Command>del "$cdup\\compat\\vcbuild\\vcpkg"</Command>
-      <Command>call "$cdup\\compat\\vcbuild\\vcpkg_install.bat"</Command>
+      <Command>call "$cdup\\compat\\vcbuild\\vcpkg_install.bat" \$(VCPKGArch)</Command>
     </PreBuildEvent>
 EOM
     }
@@ -348,8 +357,10 @@ sub createGlueProject {
     print F << "EOM";
 Global
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution
+		Debug|ARM64 = Debug|ARM64
 		Debug|x64 = Debug|x64
 		Debug|x86 = Debug|x86
+		Release|ARM64 = Release|ARM64
 		Release|x64 = Release|x64
 		Release|x86 = Release|x86
 	EndGlobalSection
@@ -360,10 +371,14 @@ EOM
     foreach (@apps) {
         my $appname = $_;
         my $uuid = $build_structure{"APPS_${appname}_GUID"};
+        print F "\t\t${uuid}.Debug|ARM64.ActiveCfg = Debug|ARM64\n";
+        print F "\t\t${uuid}.Debug|ARM64.Build.0 = Debug|ARM64\n";
         print F "\t\t${uuid}.Debug|x64.ActiveCfg = Debug|x64\n";
         print F "\t\t${uuid}.Debug|x64.Build.0 = Debug|x64\n";
         print F "\t\t${uuid}.Debug|x86.ActiveCfg = Debug|Win32\n";
         print F "\t\t${uuid}.Debug|x86.Build.0 = Debug|Win32\n";
+        print F "\t\t${uuid}.Release|ARM64.ActiveCfg = Release|ARM64\n";
+        print F "\t\t${uuid}.Release|ARM64.Build.0 = Release|ARM64\n";
         print F "\t\t${uuid}.Release|x64.ActiveCfg = Release|x64\n";
         print F "\t\t${uuid}.Release|x64.Build.0 = Release|x64\n";
         print F "\t\t${uuid}.Release|x86.ActiveCfg = Release|Win32\n";
@@ -372,10 +387,14 @@ EOM
     foreach (@libs) {
         my $libname = $_;
         my $uuid = $build_structure{"LIBS_${libname}_GUID"};
+        print F "\t\t${uuid}.Debug|ARM64.ActiveCfg = Debug|ARM64\n";
+        print F "\t\t${uuid}.Debug|ARM64.Build.0 = Debug|ARM64\n";
         print F "\t\t${uuid}.Debug|x64.ActiveCfg = Debug|x64\n";
         print F "\t\t${uuid}.Debug|x64.Build.0 = Debug|x64\n";
         print F "\t\t${uuid}.Debug|x86.ActiveCfg = Debug|Win32\n";
         print F "\t\t${uuid}.Debug|x86.Build.0 = Debug|Win32\n";
+        print F "\t\t${uuid}.Release|ARM64.ActiveCfg = Release|ARM64\n";
+        print F "\t\t${uuid}.Release|ARM64.Build.0 = Release|ARM64\n";
         print F "\t\t${uuid}.Release|x64.ActiveCfg = Release|x64\n";
         print F "\t\t${uuid}.Release|x64.Build.0 = Release|x64\n";
         print F "\t\t${uuid}.Release|x86.ActiveCfg = Release|Win32\n";