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Python

"""distutils.command.build
Implements the Distutils 'build' command."""
import sys
import os
from distutils.core import Command
from distutils.errors import DistutilsOptionError
from distutils.util import get_platform
def show_compilers():
from distutils.ccompiler import show_compilers
show_compilers()
class build(Command):
description = "build everything needed to install"
user_options = [
('build-base=', 'b', "base directory for build library"),
('build-purelib=', None, "build directory for platform-neutral distributions"),
('build-platlib=', None, "build directory for platform-specific distributions"),
(
'build-lib=',
None,
"build directory for all distribution (defaults to either "
+ "build-purelib or build-platlib",
),
('build-scripts=', None, "build directory for scripts"),
('build-temp=', 't', "temporary build directory"),
(
'plat-name=',
'p',
"platform name to build for, if supported "
"(default: %s)" % get_platform(),
),
('compiler=', 'c', "specify the compiler type"),
('parallel=', 'j', "number of parallel build jobs"),
('debug', 'g', "compile extensions and libraries with debugging information"),
('force', 'f', "forcibly build everything (ignore file timestamps)"),
('executable=', 'e', "specify final destination interpreter path (build.py)"),
]
boolean_options = ['debug', 'force']
help_options = [
('help-compiler', None, "list available compilers", show_compilers),
]
def initialize_options(self):
self.build_base = 'build'
# these are decided only after 'build_base' has its final value
# (unless overridden by the user or client)
self.build_purelib = None
self.build_platlib = None
self.build_lib = None
self.build_temp = None
self.build_scripts = None
self.compiler = None
self.plat_name = None
self.debug = None
self.force = 0
self.executable = None
self.parallel = None
def finalize_options(self): # noqa: C901
if self.plat_name is None:
self.plat_name = get_platform()
else:
# plat-name only supported for windows (other platforms are
# supported via ./configure flags, if at all). Avoid misleading
# other platforms.
if os.name != 'nt':
raise DistutilsOptionError(
"--plat-name only supported on Windows (try "
"using './configure --help' on your platform)"
)
plat_specifier = ".{}-{}".format(self.plat_name, sys.implementation.cache_tag)
# Make it so Python 2.x and Python 2.x with --with-pydebug don't
# share the same build directories. Doing so confuses the build
# process for C modules
if hasattr(sys, 'gettotalrefcount'):
plat_specifier += '-pydebug'
# 'build_purelib' and 'build_platlib' just default to 'lib' and
# 'lib.<plat>' under the base build directory. We only use one of
# them for a given distribution, though --
if self.build_purelib is None:
self.build_purelib = os.path.join(self.build_base, 'lib')
if self.build_platlib is None:
self.build_platlib = os.path.join(self.build_base, 'lib' + plat_specifier)
# 'build_lib' is the actual directory that we will use for this
# particular module distribution -- if user didn't supply it, pick
# one of 'build_purelib' or 'build_platlib'.
if self.build_lib is None:
if self.distribution.has_ext_modules():
self.build_lib = self.build_platlib
else:
self.build_lib = self.build_purelib
# 'build_temp' -- temporary directory for compiler turds,
# "build/temp.<plat>"
if self.build_temp is None:
self.build_temp = os.path.join(self.build_base, 'temp' + plat_specifier)
if self.build_scripts is None:
self.build_scripts = os.path.join(
self.build_base, 'scripts-%d.%d' % sys.version_info[:2]
)
if self.executable is None and sys.executable:
self.executable = os.path.normpath(sys.executable)
if isinstance(self.parallel, str):
try:
self.parallel = int(self.parallel)
except ValueError:
raise DistutilsOptionError("parallel should be an integer")
def run(self):
# Run all relevant sub-commands. This will be some subset of:
# - build_py - pure Python modules
# - build_clib - standalone C libraries
# - build_ext - Python extensions
# - build_scripts - (Python) scripts
for cmd_name in self.get_sub_commands():
self.run_command(cmd_name)
# -- Predicates for the sub-command list ---------------------------
def has_pure_modules(self):
return self.distribution.has_pure_modules()
def has_c_libraries(self):
return self.distribution.has_c_libraries()
def has_ext_modules(self):
return self.distribution.has_ext_modules()
def has_scripts(self):
return self.distribution.has_scripts()
sub_commands = [
('build_py', has_pure_modules),
('build_clib', has_c_libraries),
('build_ext', has_ext_modules),
('build_scripts', has_scripts),
]