# Distributed under the OSI-approved BSD 3-Clause License. See accompanying # file Copyright.txt or https://cmake.org/licensing for details. #.rst: # FindHg # ------ # # Extract information from a mercurial working copy. # # The module defines the following variables: # # :: # # HG_EXECUTABLE - path to mercurial command line client (hg) # HG_FOUND - true if the command line client was found # HG_VERSION_STRING - the version of mercurial found # # If the command line client executable is found the following macro is defined: # # :: # # HG_WC_INFO( ) # # Hg_WC_INFO extracts information of a mercurial working copy # at a given location. This macro defines the following variables: # # :: # # _WC_CHANGESET - current changeset # _WC_REVISION - current revision # # Example usage: # # :: # # find_package(Hg) # if(HG_FOUND) # message("hg found: ${HG_EXECUTABLE}") # HG_WC_INFO(${PROJECT_SOURCE_DIR} Project) # message("Current revision is ${Project_WC_REVISION}") # message("Current changeset is ${Project_WC_CHANGESET}") # endif() find_program(HG_EXECUTABLE NAMES hg PATHS [HKEY_LOCAL_MACHINE\\Software\\TortoiseHG] PATH_SUFFIXES Mercurial DOC "hg command line client" ) mark_as_advanced(HG_EXECUTABLE) if(HG_EXECUTABLE) set(_saved_lc_all "$ENV{LC_ALL}") set(ENV{LC_ALL} "C") set(_saved_language "$ENV{LANGUAGE}") set(ENV{LANGUAGE}) execute_process(COMMAND ${HG_EXECUTABLE} --version OUTPUT_VARIABLE hg_version ERROR_QUIET RESULT_VARIABLE hg_result OUTPUT_STRIP_TRAILING_WHITESPACE) set(ENV{LC_ALL} ${_saved_lc_all}) set(ENV{LANGUAGE} ${_saved_language}) if(hg_result MATCHES "is not a valid Win32 application") set_property(CACHE HG_EXECUTABLE PROPERTY VALUE "HG_EXECUTABLE-NOTFOUND") endif() if(hg_version MATCHES "^Mercurial Distributed SCM \\(version ([0-9][^)]*)\\)") set(HG_VERSION_STRING "${CMAKE_MATCH_1}") endif() unset(hg_version) macro(HG_WC_INFO dir prefix) execute_process(COMMAND ${HG_EXECUTABLE} id -i -n WORKING_DIRECTORY ${dir} RESULT_VARIABLE hg_id_result ERROR_VARIABLE hg_id_error OUTPUT_VARIABLE ${prefix}_WC_DATA OUTPUT_STRIP_TRAILING_WHITESPACE) if(NOT ${hg_id_result} EQUAL 0) message(SEND_ERROR "Command \"${HG_EXECUTBALE} id -n\" in directory ${dir} failed with output:\n${hg_id_error}") endif() string(REGEX REPLACE "([0-9a-f]+)\\+? [0-9]+\\+?" "\\1" ${prefix}_WC_CHANGESET ${${prefix}_WC_DATA}) string(REGEX REPLACE "[0-9a-f]+\\+? ([0-9]+)\\+?" "\\1" ${prefix}_WC_REVISION ${${prefix}_WC_DATA}) endmacro(HG_WC_INFO) endif() include(${CMAKE_CURRENT_LIST_DIR}/FindPackageHandleStandardArgs.cmake) find_package_handle_standard_args(Hg REQUIRED_VARS HG_EXECUTABLE VERSION_VAR HG_VERSION_STRING)