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'''
Created on 20 oct. 2012
@author: coissac
'''
import os
from distutils.core import Command
from distutils.sysconfig import customize_compiler
from distutils.errors import DistutilsSetupError
from distutils import log
from distutils.ccompiler import show_compilers
import subprocess
class build_exe(Command):
description = "build an executable -- Abstract command "
user_options = [
('build-cexe', 'x',
"directory to build C/C++ libraries to"),
('build-temp', 't',
"directory to put temporary build by-products"),
('debug', 'g',
"compile with debugging information"),
('force', 'f',
"forcibly build everything (ignore file timestamps)"),
('compiler=', 'c',
"specify the compiler type"),
]
boolean_options = ['debug', 'force']
help_options = [
('help-compiler', None,
"list available compilers", show_compilers),
]
def initialize_options(self):
self.build_cexe = None
self.build_temp = None
# List of executables to build
self.executables = None
# Compilation options for all libraries
self.include_dirs = None
self.define = None
self.undef = None
self.extra_compile_args = None
self.debug = None
self.force = 0
self.compiler = None
self.sse = None
self.built_files=None
def finalize_options(self):
# This might be confusing: both build-cexe and build-temp default
# to build-temp as defined by the "build" command. This is because
# I think that C libraries are really just temporary build
# by-products, at least from the point of view of building Python
# extensions -- but I want to keep my options open.
self.set_undefined_options('build',
('build_temp', 'build_temp'),
('compiler', 'compiler'),
('debug', 'debug'),
('force', 'force'))
if self.include_dirs is None:
self.include_dirs = self.distribution.include_dirs or []
if isinstance(self.include_dirs, str):
self.include_dirs = self.include_dirs.split(os.pathsep)
self.sse = self.distribution.sse
if self.sse is not None:
if self.extra_compile_args is None:
self.extra_compile_args=['-m%s' % self.sse]
else:
self.extra_compile_args.append('-m%s' % self.sse)
# XXX same as for build_ext -- what about 'self.define' and
# 'self.undef' ?
def run(self):
if not self.executables:
return
self.mkpath(self.build_cexe)
# Yech -- this is cut 'n pasted from build_ext.py!
from distutils.ccompiler import new_compiler
self.compiler = new_compiler(compiler=self.compiler,
dry_run=self.dry_run,
force=self.force)
customize_compiler(self.compiler)
if self.include_dirs is not None:
self.compiler.set_include_dirs(self.include_dirs)
if self.define is not None:
# 'define' option is a list of (name,value) tuples
for (name,value) in self.define:
self.compiler.define_macro(name, value)
if self.undef is not None:
for macro in self.undef:
self.compiler.undefine_macro(macro)
self.build_executables(self.executables)
def check_executable_list(self, executables):
"""Ensure that the list of executables is valid.
`executable` is presumably provided as a command option 'executables'.
This method checks that it is a list of 2-tuples, where the tuples
are (executable_name, build_info_dict).
Raise DistutilsSetupError if the structure is invalid anywhere;
just returns otherwise.
"""
if not isinstance(executables, list):
raise DistutilsSetupError("'executables' option must be a list of tuples")
for exe in executables:
if not isinstance(exe, tuple) and len(exe) != 2:
raise DistutilsSetupError("each element of 'executables' must a 2-tuple")
name, build_info = exe
if not isinstance(name, str):
raise DistutilsSetupError("first element of each tuple in 'executables' " + \
"must be a string (the executables name)")
if '/' in name or (os.sep != '/' and os.sep in name):
raise DistutilsSetupError(("bad executable name '%s': " +
"may not contain directory separators") % \
exe[0])
if not isinstance(build_info, dict):
raise DistutilsSetupError("second element of each tuple in 'executables' " + \
"must be a dictionary (build info)")
def get_executable_names(self):
# Assume the executables list is valid -- 'check_executable_list()' is
# called from 'finalize_options()', so it should be!
if not self.executables:
return None
exe_names = []
for (exe_name, build_info) in self.executables:
exe_names.append(exe_name)
return exe_names
def get_source_files(self):
self.check_executable_list(self.executables)
filenames = []
for (exe_name, build_info) in self.executables:
sources = build_info.get('sources')
if sources is None or not isinstance(sources, (list, tuple)):
raise DistutilsSetupError(("in 'executables' option (library '%s'), "
"'sources' must be present and must be "
"a list of source filenames") % exe_name)
filenames.extend(sources)
return filenames
def substitute_sources(self,exe_name,sources):
return list(sources)
def build_executables(self, executables):
for (exe_name, build_info) in executables:
sources = build_info.get('sources')
if sources is None or not isinstance(sources, (list, tuple)):
raise DistutilsSetupError(("in 'executables' option (library '%s'), " +
"'sources' must be present and must be " +
"a list of source filenames") % exe_name)
sources = self.substitute_sources(exe_name,sources)
log.info("building '%s' program", exe_name)
# First, compile the source code to object files in the library
# directory. (This should probably change to putting object
# files in a temporary build directory.)
macros = build_info.get('macros')
include_dirs = build_info.get('include_dirs')
extra_args = self.extra_compile_args or []
objects = self.compiler.compile(sources,
output_dir=self.build_temp,
macros=macros,
include_dirs=include_dirs,
extra_postargs=extra_args,
debug=self.debug)
# Now "link" the object files together into a static library.
# (On Unix at least, this isn't really linking -- it just
# builds an archive. Whatever.)
self.compiler.link_executable(objects, exe_name,
output_dir=self.build_cexe,
debug=self.debug)
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