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cmake_host_system_information: Add undocumented VS_MSBUILD_COMMAND key

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When using the Visual Studio generator for VS 10 or above,
offer this key to get the location of the MSBuild command
before the first `project()` or `enable_language()` command
has finished running.

This will be needed only by one of our own modules, so leave it
undocumented for now.
This commit is contained in:
Brad King 2021-10-20 12:05:24 -04:00
parent 6999b87133
commit 44a86d0b38
6 changed files with 23 additions and 0 deletions
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7
Source/cmCMakeHostSystemInformationCommand.cxx
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@ -27,6 +27,7 @@
#ifdef _WIN32
# include "cmAlgorithms.h"
# include "cmGlobalGenerator.h"
# include "cmGlobalVisualStudio10Generator.h"
# include "cmGlobalVisualStudioVersionedGenerator.h"
# include "cmVSSetupHelper.h"
# define HAVE_VS_SETUP_HELPER
@ -434,6 +435,12 @@ cm::optional<std::string> GetValue(cmExecutionStatus& status,
}
}
if (key == "VS_MSBUILD_COMMAND"_s && gg->IsVisualStudioAtLeast10()) {
cmGlobalVisualStudio10Generator* vs10gen =
static_cast<cmGlobalVisualStudio10Generator*>(gg);
return vs10gen->FindMSBuildCommandEarly(&status.GetMakefile());
}
return {};
}
#endif

6
Tests/RunCMake/cmake_host_system_information/RunCMakeTest.cmake
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@ -15,3 +15,9 @@ run_cmake(CentOS6)
run_cmake(Debian6)
run_cmake(UserFallbackScript)
if(RunCMake_GENERATOR MATCHES "^Visual Studio " AND NOT RunCMake_GENERATOR STREQUAL "Visual Studio 9 2008")
run_cmake(VsMSBuild)
else()
run_cmake(VsMSBuildMissing)
endif()

4
Tests/RunCMake/cmake_host_system_information/VsMSBuild.cmake Normal file
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@ -0,0 +1,4 @@
cmake_host_system_information(RESULT msbuild QUERY VS_MSBUILD_COMMAND)
if(NOT EXISTS "${msbuild}")
message(FATAL_ERROR "VS_MSBUILD_COMMAND returned path that does not exist:\n ${msbuild}")
endif()

1
Tests/RunCMake/cmake_host_system_information/VsMSBuildMissing-result.txt Normal file
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@ -0,0 +1 @@
1

4
Tests/RunCMake/cmake_host_system_information/VsMSBuildMissing-stderr.txt Normal file
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@ -0,0 +1,4 @@
^CMake Error at VsMSBuildMissing.cmake:[0-9]+ \(cmake_host_system_information\):
cmake_host_system_information does not recognize <key> VS_MSBUILD_COMMAND
Call Stack \(most recent call first\):
CMakeLists.txt:[0-9]+ \(include\)$

1
Tests/RunCMake/cmake_host_system_information/VsMSBuildMissing.cmake Normal file
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@ -0,0 +1 @@
cmake_host_system_information(RESULT msbuild QUERY VS_MSBUILD_COMMAND)