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mapnik/bindings/python/build.py

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Python
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#
# This file is part of Mapnik (c++ mapping toolkit)
#
# Copyright (C) 2013 Artem Pavlenko
#
# Mapnik is free software; you can redistribute it and/or
# modify it under the terms of the GNU Lesser General Public
# License as published by the Free Software Foundation; either
# version 2.1 of the License, or (at your option) any later version.
#
# This library is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
# Lesser General Public License for more details.
#
# You should have received a copy of the GNU Lesser General Public
# License along with this library; if not, write to the Free Software
# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
#
#
import os, re, sys, glob
from subprocess import Popen, PIPE
Import('env')
def call(cmd, silent=True):
stdin, stderr = Popen(cmd, shell=True, stdout=PIPE, stderr=PIPE).communicate()
if not stderr:
return stdin.strip()
elif not silent:
print stderr
def run_2to3(*args,**kwargs):
call('2to3 -w %s' % os.path.dirname(kwargs['target'][0].path))
def is_py3():
return 'True' in os.popen('''%s -c "import sys as s;s.stdout.write(str(s.version_info[0] == 3))"''' % env['PYTHON']).read().strip()
prefix = env['PREFIX']
target_path = os.path.normpath(env['PYTHON_INSTALL_LOCATION'] + os.path.sep + 'mapnik')
target_path_deprecated = os.path.normpath(env['PYTHON_INSTALL_LOCATION'] + os.path.sep + 'mapnik2')
py_env = env.Clone()
py_env.Append(CPPPATH = env['PYTHON_INCLUDES'])
py_env['LIBS'] = ['mapnik',env['BOOST_PYTHON_LIB']]
# TODO - do solaris/fedora need direct linking too?
if env['PLATFORM'] == 'Darwin':
if not env['PYTHON_DYNAMIC_LOOKUP']:
if env['PNG']:
py_env.AppendUnique(LIBS = 'png')
if env['JPEG']:
py_env.AppendUnique(LIBS = 'jpeg')
py_env.AppendUnique(LIBS = env['ICU_LIB_NAME'])
py_env.AppendUnique(LIBS = 'boost_regex%s' % env['BOOST_APPEND'])
if env['THREADING'] == 'multi':
py_env.AppendUnique(LIBS = 'boost_thread%s' % env['BOOST_APPEND'])
##### Python linking on OS X is tricky ###
# Confounding problems are:
# 1) likelyhood of multiple python installs of the same major.minor version
# because apple supplies python built-in and many users may have installed
# further versions using macports
# 2) boost python directly links to a python version
# 3) the below will directly link _mapnik.so to a python version
# 4) _mapnik.so must link to the same python lib as boost_python.dylib otherwise
# python will Abort with a Version Mismatch error.
# See https://github.com/mapnik/mapnik/issues/453 for the seeds of a better approach
# for now we offer control over method of direct linking...
# The default below is to link against the python dylib in the form of
#/path/to/Python.framework/Python instead of -lpython
# http://developer.apple.com/mac/library/DOCUMENTATION/Darwin/Reference/ManPages/man1/ld.1.html
if env['PYTHON_DYNAMIC_LOOKUP']:
python_link_flag = '-undefined dynamic_lookup'
elif env['FRAMEWORK_PYTHON']:
if env['FRAMEWORK_SEARCH_PATH']:
# if the user has supplied a custom root path to search for
# a given Python framework, then use that to direct the linker
python_link_flag = '-F%s -framework Python -Z' % env['FRAMEWORK_SEARCH_PATH']
else:
# otherwise be as explicit as possible for linking to the same Framework
# as the executable we are building with (or is pointed to by the PYTHON variable)
# otherwise we may accidentally link against either:
# /System/Library/Frameworks/Python.framework/Python/Versions/
# or
# /Library/Frameworks/Python.framework/Python/Versions/
# See: https://github.com/mapnik/mapnik/issues/380
link_prefix = env['PYTHON_SYS_PREFIX']
if '.framework' in link_prefix:
python_link_flag = '-F%s -framework Python -Z' % os.path.dirname(link_prefix.split('.')[0])
elif '/System' in link_prefix:
python_link_flag = '-F/System/Library/Frameworks/ -framework Python -Z'
else:
# should we fall back to -lpython here?
python_link_flag = '-F/ -framework Python'
# if we are not linking to a framework then use the *nix standard approach
else:
# TODO - do we need to pass -L/?
python_link_flag = '-lpython%s' % env['PYTHON_VERSION']
elif env['PLATFORM'] == 'SunOS':
# make sure to explicitly link mapnik.so against
# libmapnik in its installed location
python_link_flag = '-R%s' % env['MAPNIK_LIB_BASE']
else:
# all other platforms we don't directly link python
python_link_flag = ''
if env['CUSTOM_LDFLAGS']:
linkflags = '%s %s' % (env['CUSTOM_LDFLAGS'], python_link_flag)
else:
linkflags = python_link_flag
if env['LINKING'] == 'static':
py_env.AppendUnique(LIBS=env['LIBMAPNIK_LIBS'])
paths = '''
"""Configuration paths of Mapnik fonts and input plugins (auto-generated by SCons)."""
from os.path import normpath,join,dirname
mapniklibpath = '%s'
mapniklibpath = normpath(join(dirname(__file__),mapniklibpath))
'''
paths += "inputpluginspath = join(mapniklibpath,'input')\n"
if env['SYSTEM_FONTS']:
paths += "fontscollectionpath = normpath('%s')\n" % env['SYSTEM_FONTS']
else:
paths += "fontscollectionpath = join(mapniklibpath,'fonts')\n"
paths += "__all__ = [mapniklibpath,inputpluginspath,fontscollectionpath]\n"
if not os.path.exists('mapnik'):
os.mkdir('mapnik')
file('mapnik/paths.py','w').write(paths % (env['MAPNIK_LIB_DIR']))
# force open perms temporarily so that `sudo scons install`
# does not later break simple non-install non-sudo rebuild
try:
os.chmod('mapnik/paths.py',0666)
except: pass
# install the shared object beside the module directory
sources = glob.glob('*.cpp')
if 'install' in COMMAND_LINE_TARGETS:
# install the core mapnik python files, including '__init__.py'
init_files = glob.glob('mapnik/*.py')
if 'mapnik/paths.py' in init_files:
init_files.remove('mapnik/paths.py')
init_module = env.Install(target_path, init_files)
env.Alias(target='install', source=init_module)
# install mapnik2 module which redirects to mapnik and issues DeprecatedWarning
init_mapnik2 = env.Install(target_path_deprecated, 'mapnik2/__init__.py')
env.Alias(target='install', source=init_mapnik2)
# fix perms and install the custom generated 'paths.py'
targetp = os.path.join(target_path,'paths.py')
env.Alias("install", targetp)
# use env.Command rather than env.Install
# to enable setting proper perms on `paths.py`
env.Command( targetp, 'mapnik/paths.py',
[
Copy("$TARGET","$SOURCE"),
Chmod("$TARGET", 0644),
])
if 'uninstall' not in COMMAND_LINE_TARGETS:
if env['HAS_CAIRO']:
py_env.Append(CPPPATH = env['CAIRO_CPPPATHS'])
py_env.Append(CPPDEFINES = '-DHAVE_CAIRO')
if env['PLATFORM'] == 'Darwin' and not env['PYTHON_DYNAMIC_LOOKUP']:
py_env.Append(LIBS=env['CAIRO_ALL_LIBS'])
if env['HAS_PYCAIRO']:
py_env.ParseConfig('pkg-config --cflags pycairo')
py_env.Append(CPPDEFINES = '-DHAVE_PYCAIRO')
py_env.AppendUnique(LIBS = 'boost_thread%s' % env['BOOST_APPEND'])
_mapnik = py_env.LoadableModule('mapnik/_mapnik', sources, LDMODULEPREFIX='', LDMODULESUFFIX='.so',LINKFLAGS=linkflags)
Depends(_mapnik, env.subst('../../src/%s' % env['MAPNIK_LIB_NAME']))
if env['PLATFORM'] == 'SunOS' and env['PYTHON_IS_64BIT']:
# http://mail.python.org/pipermail/python-dev/2006-August/068528.html
cxx_module_path = os.path.join(target_path,'64')
else:
cxx_module_path = target_path
if 'uninstall' not in COMMAND_LINE_TARGETS:
pymapniklib = env.Install(cxx_module_path,_mapnik)
py_env.Alias(target='install',source=pymapniklib)
if 'install' in COMMAND_LINE_TARGETS:
if is_py3():
env.AddPostAction(pymapniklib, run_2to3)
env['create_uninstall_target'](env, target_path)
env['create_uninstall_target'](env, target_path_deprecated)
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