171 lines
4.7 KiB
Python
171 lines
4.7 KiB
Python
"""
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Compile a Python script into an executable that embeds CPython.
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Requires CPython to be built as a shared library ('libpythonX.Y').
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Basic usage:
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python -m Cython.Build.BuildExecutable [ARGS] somefile.py
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"""
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from __future__ import absolute_import
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DEBUG = True
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import sys
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import os
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if sys.version_info < (3, 9):
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from distutils import sysconfig as _sysconfig
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class sysconfig(object):
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@staticmethod
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def get_path(name):
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assert name == 'include'
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return _sysconfig.get_python_inc()
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get_config_var = staticmethod(_sysconfig.get_config_var)
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else:
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# sysconfig can be trusted from cpython >= 3.8.7
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import sysconfig
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def get_config_var(name, default=''):
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return sysconfig.get_config_var(name) or default
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INCDIR = sysconfig.get_path('include')
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LIBDIR1 = get_config_var('LIBDIR')
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LIBDIR2 = get_config_var('LIBPL')
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PYLIB = get_config_var('LIBRARY')
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PYLIB_DYN = get_config_var('LDLIBRARY')
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if PYLIB_DYN == PYLIB:
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# no shared library
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PYLIB_DYN = ''
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else:
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PYLIB_DYN = os.path.splitext(PYLIB_DYN[3:])[0] # 'lib(XYZ).so' -> XYZ
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CC = get_config_var('CC', os.environ.get('CC', ''))
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CFLAGS = get_config_var('CFLAGS') + ' ' + os.environ.get('CFLAGS', '')
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LINKCC = get_config_var('LINKCC', os.environ.get('LINKCC', CC))
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LINKFORSHARED = get_config_var('LINKFORSHARED')
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LIBS = get_config_var('LIBS')
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SYSLIBS = get_config_var('SYSLIBS')
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EXE_EXT = sysconfig.get_config_var('EXE')
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def _debug(msg, *args):
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if DEBUG:
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if args:
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msg = msg % args
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sys.stderr.write(msg + '\n')
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def dump_config():
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_debug('INCDIR: %s', INCDIR)
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_debug('LIBDIR1: %s', LIBDIR1)
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_debug('LIBDIR2: %s', LIBDIR2)
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_debug('PYLIB: %s', PYLIB)
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_debug('PYLIB_DYN: %s', PYLIB_DYN)
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_debug('CC: %s', CC)
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_debug('CFLAGS: %s', CFLAGS)
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_debug('LINKCC: %s', LINKCC)
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_debug('LINKFORSHARED: %s', LINKFORSHARED)
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_debug('LIBS: %s', LIBS)
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_debug('SYSLIBS: %s', SYSLIBS)
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_debug('EXE_EXT: %s', EXE_EXT)
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def _parse_args(args):
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cy_args = []
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last_arg = None
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for i, arg in enumerate(args):
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if arg.startswith('-'):
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cy_args.append(arg)
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elif last_arg in ('-X', '--directive'):
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cy_args.append(arg)
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else:
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input_file = arg
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args = args[i+1:]
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break
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last_arg = arg
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else:
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raise ValueError('no input file provided')
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return input_file, cy_args, args
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def runcmd(cmd, shell=True):
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if shell:
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cmd = ' '.join(cmd)
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_debug(cmd)
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else:
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_debug(' '.join(cmd))
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import subprocess
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returncode = subprocess.call(cmd, shell=shell)
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if returncode:
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sys.exit(returncode)
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def clink(basename):
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runcmd([LINKCC, '-o', basename + EXE_EXT, basename+'.o', '-L'+LIBDIR1, '-L'+LIBDIR2]
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+ [PYLIB_DYN and ('-l'+PYLIB_DYN) or os.path.join(LIBDIR1, PYLIB)]
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+ LIBS.split() + SYSLIBS.split() + LINKFORSHARED.split())
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def ccompile(basename):
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runcmd([CC, '-c', '-o', basename+'.o', basename+'.c', '-I' + INCDIR] + CFLAGS.split())
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def cycompile(input_file, options=()):
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from ..Compiler import Version, CmdLine, Main
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options, sources = CmdLine.parse_command_line(list(options or ()) + ['--embed', input_file])
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_debug('Using Cython %s to compile %s', Version.version, input_file)
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result = Main.compile(sources, options)
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if result.num_errors > 0:
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sys.exit(1)
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def exec_file(program_name, args=()):
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runcmd([os.path.abspath(program_name)] + list(args), shell=False)
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def build(input_file, compiler_args=(), force=False):
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"""
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Build an executable program from a Cython module.
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Returns the name of the executable file.
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"""
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basename = os.path.splitext(input_file)[0]
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exe_file = basename + EXE_EXT
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if not force and os.path.abspath(exe_file) == os.path.abspath(input_file):
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raise ValueError("Input and output file names are the same, refusing to overwrite")
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if (not force and os.path.exists(exe_file) and os.path.exists(input_file)
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and os.path.getmtime(input_file) <= os.path.getmtime(exe_file)):
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_debug("File is up to date, not regenerating %s", exe_file)
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return exe_file
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cycompile(input_file, compiler_args)
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ccompile(basename)
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clink(basename)
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return exe_file
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def build_and_run(args):
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"""
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Build an executable program from a Cython module and run it.
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Arguments after the module name will be passed verbatimly to the program.
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"""
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program_name, args = _build(args)
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exec_file(program_name, args)
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def _build(args):
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input_file, cy_args, args = _parse_args(args)
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program_name = build(input_file, cy_args)
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return program_name, args
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if __name__ == '__main__':
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_build(sys.argv[1:])
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