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# Distributed under the OSI-approved BSD 3-Clause License. See accompanying
# file Copyright.txt or https://cmake.org/licensing for details.
#[=======================================================================[.rst:
FindGit
-------
The module defines the following variables:
``GIT_EXECUTABLE``
Path to Git command-line client.
``Git_FOUND``, ``GIT_FOUND``
True if the Git command-line client was found.
``GIT_VERSION_STRING``
The version of Git found.
.. versionadded:: 3.14
The module defines the following ``IMPORTED`` targets (when
:prop_gbl:`CMAKE_ROLE` is ``PROJECT``):
``Git::Git``
Executable of the Git command-line client.
Example usage:
.. code-block:: cmake
find_package(Git)
if(Git_FOUND)
message("Git found: ${GIT_EXECUTABLE}")
endif()
#]=======================================================================]
# Look for 'git' or 'eg' (easy git)
#
set(git_names git eg)
# Prefer .cmd variants on Windows unless running in a Makefile
# in the MSYS shell.
#
if(CMAKE_HOST_WIN32)
if(NOT CMAKE_GENERATOR MATCHES "MSYS")
set(git_names git.cmd git eg.cmd eg)
# GitHub search path for Windows
file(GLOB github_path
"$ENV{LOCALAPPDATA}/Github/PortableGit*/cmd"
"$ENV{LOCALAPPDATA}/Github/PortableGit*/bin"
)
# SourceTree search path for Windows
set(_git_sourcetree_path "$ENV{LOCALAPPDATA}/Atlassian/SourceTree/git_local/bin")
endif()
endif()
# First search the PATH and specific locations.
find_program(GIT_EXECUTABLE
NAMES ${git_names}
PATHS ${github_path} ${_git_sourcetree_path}
DOC "Git command line client"
)
if(CMAKE_HOST_WIN32)
# Now look for installations in Git/ directories under typical installation
# prefixes on Windows. Exclude PATH from this search because VS 2017's
# command prompt happens to have a PATH entry with a Git/ subdirectory
# containing a minimal git not meant for general use.
find_program(GIT_EXECUTABLE
NAMES ${git_names}
PATH_SUFFIXES Git/cmd Git/bin
NO_SYSTEM_ENVIRONMENT_PATH
DOC "Git command line client"
)
endif()
mark_as_advanced(GIT_EXECUTABLE)
unset(git_names)
unset(_git_sourcetree_path)
if(GIT_EXECUTABLE)
# Avoid querying the version if we've already done that this run. For
# projects that use things like ExternalProject or FetchContent heavily,
# this saving can be measurable on some platforms.
set(__doGitVersionCheck YES)
if(DEFINED GIT_VERSION_STRING)
# This is an internal property, projects must not try to use it.
# We don't want this stored in the cache because it might still change
# between CMake runs, but it shouldn't change during a run.
get_property(__gitVersionProp GLOBAL
PROPERTY _CMAKE_FindGit_GIT_EXECUTABLE_VERSION
)
if(__gitVersionProp)
list(GET __gitVersionProp 0 __gitExe)
list(GET __gitVersionProp 1 __gitVersion)
if("${__gitExe}" STREQUAL "${GIT_EXECUTABLE}" AND
"${__gitVersion}" STREQUAL "${GIT_VERSION_STRING}")
set(__doGitVersionCheck NO)
endif()
endif()
unset(__gitVersionProp)
unset(__gitExe)
unset(__gitVersion)
endif()
if(__doGitVersionCheck)
execute_process(COMMAND ${GIT_EXECUTABLE} --version
OUTPUT_VARIABLE git_version
ERROR_QUIET
OUTPUT_STRIP_TRAILING_WHITESPACE)
if (git_version MATCHES "^git version [0-9]")
string(REPLACE "git version " "" GIT_VERSION_STRING "${git_version}")
set_property(GLOBAL PROPERTY _CMAKE_FindGit_GIT_EXECUTABLE_VERSION
"${GIT_EXECUTABLE};${GIT_VERSION_STRING}"
)
endif()
unset(git_version)
endif()
unset(__doGitVersionCheck)
get_property(_findgit_role GLOBAL PROPERTY CMAKE_ROLE)
if(_findgit_role STREQUAL "PROJECT" AND NOT TARGET Git::Git)
add_executable(Git::Git IMPORTED)
set_property(TARGET Git::Git PROPERTY IMPORTED_LOCATION "${GIT_EXECUTABLE}")
endif()
endif()
include(${CMAKE_CURRENT_LIST_DIR}/FindPackageHandleStandardArgs.cmake)
find_package_handle_standard_args(Git
REQUIRED_VARS GIT_EXECUTABLE
VERSION_VAR GIT_VERSION_STRING)
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