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Merge topic 'FindPythonInterp-Refactoring' 

1c2508a Use FIND_PACKAGE_HANDLE_STANDARD_ARGS second mode
d179500 Update documentation of FindPythonInterp.cmake
4fd1e28 Determine python version
20980ef Search for the installed python interpreter first
This commit is contained in:
David Cole 2011-09-07 15:36:18 -04:00 committed by CMake Topic Stage
parent accdb855c2 1c2508a569
commit 5686515b6f
1 changed files with 30 additions and 15 deletions
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27
Modules/FindPythonInterp.cmake
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@ -4,11 +4,17 @@
#
# PYTHONINTERP_FOUND - Was the Python executable found
# PYTHON_EXECUTABLE - path to the Python interpreter
# Python_ADDITIONAL_VERSIONS - list of additional Python versions to search for
#
# PYTHON_VERSION_STRING - Python version found e.g. 2.5.2
# PYTHON_VERSION_MAJOR - Python major version found e.g. 2
# PYTHON_VERSION_MINOR - Python minor version found e.g. 5
# PYTHON_VERSION_PATCH - Python patch version found e.g. 2
#
# Python_ADDITIONAL_VERSIONS - list of additional Python versions to search for
#=============================================================================
# Copyright 2005-2010 Kitware, Inc.
# Copyright 2011 Bjoern Ricks <bjoern.ricks@gmail.com>
#
# Distributed under the OSI-approved BSD License (the "License");
# see accompanying file Copyright.txt for details.
@ -20,13 +26,17 @@
# (To distribute this file outside of CMake, substitute the full
# License text for the above reference.)
# Search for the current active python version first
find_program(PYTHON_EXECUTABLE NAMES python)
# Set up the versions we know about, in the order we will search. Always add
# the user supplied additional versions to the front.
set(_Python_VERSIONS
${Python_ADDITIONAL_VERSIONS}
2.7 2.6 2.5 2.4 2.3 2.2 2.1 2.0 1.6 1.5)
# Run first with the Python version in the executable
# Search for newest python version if python executable isn't found
if(NOT PYTHON_EXECUTABLE)
foreach(_CURRENT_VERSION ${_Python_VERSIONS})
set(_Python_NAMES python${_CURRENT_VERSION})
if(WIN32)
@ -37,15 +47,20 @@ foreach(_CURRENT_VERSION ${_Python_VERSIONS})
PATHS [HKEY_LOCAL_MACHINE\\SOFTWARE\\Python\\PythonCore\\${_CURRENT_VERSION}\\InstallPath]
)
endforeach()
# Now without any version if we still haven't found it
if(NOT PYTHON_EXECUTABLE)
find_program(PYTHON_EXECUTABLE NAMES python)
endif()
# determine python version string
if(PYTHON_EXECUTABLE)
execute_process(COMMAND "${PYTHON_EXECUTABLE}" --version ERROR_VARIABLE _VERSION OUTPUT_QUIET ERROR_STRIP_TRAILING_WHITESPACE)
string(REPLACE "Python " "" PYTHON_VERSION_STRING "${_VERSION}")
string(REGEX REPLACE "^([0-9]+)\\.[0-9]+\\.[0-9]+.*" "\\1" PYTHON_VERSION_MAJOR "${PYTHON_VERSION_STRING}")
string(REGEX REPLACE "^[0-9]+\\.([0-9])+\\.[0-9]+.*" "\\1" PYTHON_VERSION_MINOR "${PYTHON_VERSION_STRING}")
string(REGEX REPLACE "^[0-9]+\\.[0-9]+\\.([0-9]+).*" "\\1" PYTHON_VERSION_PATCH "${PYTHON_VERSION_STRING}")
endif()
# handle the QUIETLY and REQUIRED arguments and set PYTHONINTERP_FOUND to TRUE if
# all listed variables are TRUE
include(${CMAKE_CURRENT_LIST_DIR}/FindPackageHandleStandardArgs.cmake)
FIND_PACKAGE_HANDLE_STANDARD_ARGS(PythonInterp DEFAULT_MSG PYTHON_EXECUTABLE)
FIND_PACKAGE_HANDLE_STANDARD_ARGS(PythonInterp REQUIRED_VARS PYTHON_EXECUTABLE VERSION_VAR PYTHON_VERSION_STRING)
mark_as_advanced(PYTHON_EXECUTABLE)