107 lines
3.1 KiB
CMake
107 lines
3.1 KiB
CMake
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# Distributed under the OSI-approved BSD 3-Clause License. See accompanying
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# file Copyright.txt or https://cmake.org/licensing for details.
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#.rst:
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# FindGit
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# -------
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#
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# The module defines the following variables:
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#
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# ``GIT_EXECUTABLE``
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# Path to Git command-line client.
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# ``Git_FOUND``, ``GIT_FOUND``
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# True if the Git command-line client was found.
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# ``GIT_VERSION_STRING``
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# The version of Git found.
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#
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# Example usage:
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#
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# .. code-block:: cmake
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#
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# find_package(Git)
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# if(Git_FOUND)
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# message("Git found: ${GIT_EXECUTABLE}")
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# endif()
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# Look for 'git' or 'eg' (easy git)
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#
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set(git_names git eg)
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# Prefer .cmd variants on Windows unless running in a Makefile
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# in the MSYS shell.
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#
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if(CMAKE_HOST_WIN32)
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if(NOT CMAKE_GENERATOR MATCHES "MSYS")
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set(git_names git.cmd git eg.cmd eg)
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# GitHub search path for Windows
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file(GLOB github_path
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"$ENV{LOCALAPPDATA}/Github/PortableGit*/cmd"
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"$ENV{LOCALAPPDATA}/Github/PortableGit*/bin"
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)
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# SourceTree search path for Windows
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set(_git_sourcetree_path "$ENV{LOCALAPPDATA}/Atlassian/SourceTree/git_local/bin")
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endif()
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endif()
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# First search the PATH and specific locations.
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find_program(GIT_EXECUTABLE
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NAMES ${git_names}
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PATHS ${github_path} ${_git_sourcetree_path}
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DOC "Git command line client"
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)
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if(CMAKE_HOST_WIN32)
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# Now look for installations in Git/ directories under typical installation
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# prefixes on Windows. Exclude PATH from this search because VS 2017's
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# command prompt happens to have a PATH entry with a Git/ subdirectory
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# containing a minimal git not meant for general use.
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find_program(GIT_EXECUTABLE
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NAMES ${git_names}
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PATH_SUFFIXES Git/cmd Git/bin
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NO_SYSTEM_ENVIRONMENT_PATH
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DOC "Git command line client"
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)
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endif()
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mark_as_advanced(GIT_EXECUTABLE)
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MACRO(Git_WC_INFO dir prefix)
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EXECUTE_PROCESS(COMMAND ${Git_EXECUTABLE} log -r --pretty=format:"%d;%H;%an" .
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WORKING_DIRECTORY ${dir}
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OUTPUT_VARIABLE ${prefix}_WC_INFO
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ERROR_VARIABLE Git_info_error
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RESULT_VARIABLE Git_info_result
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OUTPUT_STRIP_TRAILING_WHITESPACE)
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IF(NOT ${Git_info_result} EQUAL 0)
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MESSAGE(SEND_ERROR "Command \"${GIT_EXECUTABLE} log\" failed with output:\n${Git_info_error}")
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ELSE()
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LIST(LENGTH ${prefix}_WC_INFO _COUNT)
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IF(_COUNT EQUAL 4)
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LIST(GET ${prefix}_WC_INFO 0 ${prefix}_WC_REVISION)
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LIST(GET ${prefix}_WC_INFO 1 ${prefix}_WC_CHANGESET)
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LIST(GET ${prefix}_WC_INFO 3 ${prefix}_WC_LAST_CHANGED_AUTHOR)
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ELSE()
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MESSAGE(STATUS "Bad output from HG")
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SET(${prefix}_WC_REVISION "unknown")
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SET(${prefix}_WC_CHANGESET "unknown")
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SET(${prefix}_WC_BRANCH "unknown")
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ENDIF()
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ENDIF()
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ENDMACRO()
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unset(git_names)
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unset(_git_sourcetree_path)
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if(GIT_EXECUTABLE)
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execute_process(COMMAND ${GIT_EXECUTABLE} --version
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OUTPUT_VARIABLE git_version
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ERROR_QUIET
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OUTPUT_STRIP_TRAILING_WHITESPACE)
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if (git_version MATCHES "^git version [0-9]")
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string(REPLACE "git version " "" GIT_VERSION_STRING "${git_version}")
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endif()
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unset(git_version)
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endif()
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