# 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(<dir> <var-prefix>) | |
# | |
# Hg_WC_INFO extracts information of a mercurial working copy | |
# at a given location. This macro defines the following variables: | |
# | |
# :: | |
# | |
# <var-prefix>_WC_CHANGESET - current changeset | |
# <var-prefix>_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) |