mirror of https://github.com/python/cpython.git
315 lines
7.9 KiB
Python
Executable File
315 lines
7.9 KiB
Python
Executable File
#! /usr/bin/env python
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"""Freeze a Python script into a binary.
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usage: freeze [options...] script.py [module]...
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Options:
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-p prefix: This is the prefix used when you ran ``make install''
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in the Python build directory.
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(If you never ran this, freeze won't work.)
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The default is whatever sys.prefix evaluates to.
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It can also be the top directory of the Python source
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tree; then -P must point to the build tree.
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-P exec_prefix: Like -p but this is the 'exec_prefix', used to
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install objects etc. The default is whatever sys.exec_prefix
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evaluates to, or the -p argument if given.
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If -p points to the Python source tree, -P must point
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to the build tree, if different.
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-e extension: A directory containing additional .o files that
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may be used to resolve modules. This directory
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should also have a Setup file describing the .o files.
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More than one -e option may be given.
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-o dir: Directory where the output files are created; default '.'.
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-h: Print this help message.
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Arguments:
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script.py: The Python script to be executed by the resulting binary.
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It *must* end with a .py suffix!
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module ...: Additional Python modules (referenced by pathname)
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that will be included in the resulting binary. These
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may be .py or .pyc files.
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NOTES:
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In order to use freeze successfully, you must have built Python and
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installed it ("make install").
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The script should not use modules provided only as shared libraries;
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if it does, the resulting binary is not self-contained.
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"""
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# Import standard modules
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import cmp
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import getopt
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import os
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import string
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import sys
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import addpack
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# Import the freeze-private modules
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import checkextensions
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import findmodules
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import makeconfig
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import makefreeze
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import makemakefile
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import parsesetup
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# Main program
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def main():
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# overridable context
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prefix = None # settable with -p option
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exec_prefix = None # settable with -P option
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extensions = []
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path = sys.path
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odir = ''
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# output files
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frozen_c = 'frozen.c'
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config_c = 'config.c'
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target = 'a.out' # normally derived from script name
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makefile = 'Makefile'
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# parse command line
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try:
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opts, args = getopt.getopt(sys.argv[1:], 'he:o:p:P:')
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except getopt.error, msg:
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usage('getopt error: ' + str(msg))
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# proces option arguments
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for o, a in opts:
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if o == '-h':
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print __doc__
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return
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if o == '-e':
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extensions.append(a)
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if o == '-o':
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odir = a
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if o == '-p':
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prefix = a
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if o == '-P':
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exec_prefix = a
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# default prefix and exec_prefix
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if not exec_prefix:
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if prefix:
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exec_prefix = prefix
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else:
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exec_prefix = sys.exec_prefix
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if not prefix:
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prefix = sys.prefix
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# determine whether -p points to the Python source tree
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ishome = os.path.exists(os.path.join(prefix, 'Include', 'pythonrun.h'))
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# locations derived from options
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version = sys.version[:3]
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if ishome:
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print "(Using Python source directory)"
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binlib = exec_prefix
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incldir = os.path.join(prefix, 'Include')
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config_c_in = os.path.join(prefix, 'Modules', 'config.c.in')
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frozenmain_c = os.path.join(prefix, 'Modules', 'frozenmain.c')
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makefile_in = os.path.join(exec_prefix, 'Modules', 'Makefile')
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else:
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binlib = os.path.join(exec_prefix,
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'lib', 'python%s' % version, 'config')
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incldir = os.path.join(prefix, 'include', 'python%s' % version)
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config_c_in = os.path.join(binlib, 'config.c.in')
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frozenmain_c = os.path.join(binlib, 'frozenmain.c')
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makefile_in = os.path.join(binlib, 'Makefile')
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supp_sources = []
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defines = []
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includes = ['-I' + incldir, '-I' + binlib]
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# sanity check of directories and files
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for dir in [prefix, exec_prefix, binlib, incldir] + extensions:
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if not os.path.exists(dir):
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usage('needed directory %s not found' % dir)
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if not os.path.isdir(dir):
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usage('%s: not a directory' % dir)
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for file in [config_c_in, makefile_in] + supp_sources:
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if not os.path.exists(file):
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usage('needed file %s not found' % file)
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if not os.path.isfile(file):
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usage('%s: not a plain file' % file)
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for dir in extensions:
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setup = os.path.join(dir, 'Setup')
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if not os.path.exists(setup):
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usage('needed file %s not found' % setup)
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if not os.path.isfile(setup):
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usage('%s: not a plain file' % setup)
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# check that enough arguments are passed
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if not args:
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usage('at least one filename argument required')
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# check that the script name ends in ".py"
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if args[0][-3:] != ".py":
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usage('the script name must have a .py suffix')
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# check that file arguments exist
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for arg in args:
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if not os.path.exists(arg):
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usage('argument %s not found' % arg)
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if not os.path.isfile(arg):
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usage('%s: not a plain file' % arg)
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# process non-option arguments
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scriptfile = args[0]
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modules = args[1:]
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# derive target name from script name
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base = os.path.basename(scriptfile)
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base, ext = os.path.splitext(base)
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if base:
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if base != scriptfile:
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target = base
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else:
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target = base + '.bin'
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# handle -o option
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base_frozen_c = frozen_c
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base_config_c = config_c
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base_target = target
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if odir and not os.path.isdir(odir):
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try:
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os.mkdir(odir)
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print "Created output directory", odir
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except os.error, msg:
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usage('%s: mkdir failed (%s)' % (odir, str(msg)))
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if odir:
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frozen_c = os.path.join(odir, frozen_c)
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config_c = os.path.join(odir, config_c)
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target = os.path.join(odir, target)
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makefile = os.path.join(odir,makefile)
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# Actual work starts here...
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dict = findmodules.findmodules(scriptfile, modules, path)
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names = dict.keys()
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names.sort()
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print "Modules being frozen:"
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for name in names:
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print '\t', name
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backup = frozen_c + '~'
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try:
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os.rename(frozen_c, backup)
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except os.error:
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backup = None
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outfp = open(frozen_c, 'w')
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try:
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makefreeze.makefreeze(outfp, dict)
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finally:
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outfp.close()
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if backup:
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if cmp.cmp(backup, frozen_c):
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sys.stderr.write('%s not changed, not written\n' %
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frozen_c)
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os.rename(backup, frozen_c)
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builtins = []
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unknown = []
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mods = dict.keys()
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mods.sort()
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for mod in mods:
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if dict[mod] == '<builtin>':
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builtins.append(mod)
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elif dict[mod] == '<unknown>':
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unknown.append(mod)
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addfiles = []
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if unknown:
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addfiles, addmods = \
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checkextensions.checkextensions(unknown, extensions)
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for mod in addmods:
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unknown.remove(mod)
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builtins = builtins + addmods
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if unknown:
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sys.stderr.write('Warning: unknown modules remain: %s\n' %
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string.join(unknown))
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builtins.sort()
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infp = open(config_c_in)
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backup = config_c + '~'
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try:
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os.rename(config_c, backup)
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except os.error:
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backup = None
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outfp = open(config_c, 'w')
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try:
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makeconfig.makeconfig(infp, outfp, builtins)
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finally:
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outfp.close()
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infp.close()
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if backup:
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if cmp.cmp(backup, config_c):
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sys.stderr.write('%s not changed, not written\n' %
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config_c)
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os.rename(backup, config_c)
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cflags = defines + includes + ['$(OPT)']
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libs = [os.path.join(binlib, 'libpython$(VERSION).a')]
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makevars = parsesetup.getmakevars(makefile_in)
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somevars = {}
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for key in makevars.keys():
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somevars[key] = makevars[key]
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somevars['CFLAGS'] = string.join(cflags) # override
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files = ['$(OPT)', '$(LDFLAGS)', base_config_c, base_frozen_c] + \
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supp_sources + addfiles + libs + \
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['$(MODLIBS)', '$(LIBS)', '$(SYSLIBS)']
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backup = makefile + '~'
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try:
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os.rename(makefile, backup)
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except os.error:
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backup = None
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outfp = open(makefile, 'w')
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try:
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makemakefile.makemakefile(outfp, somevars, files, base_target)
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finally:
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outfp.close()
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if backup:
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if not cmp.cmp(backup, makefile):
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print 'previous Makefile saved as', backup
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else:
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sys.stderr.write('%s not changed, not written\n' %
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makefile)
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os.rename(backup, makefile)
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# Done!
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if odir:
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print 'Now run "make" in', odir,
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print 'to build the target:', base_target
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else:
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print 'Now run "make" to build the target:', base_target
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# Print usage message and exit
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def usage(msg):
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sys.stdout = sys.stderr
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print "Error:", msg
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print "Use ``%s -h'' for help" % sys.argv[0]
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sys.exit(2)
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main()
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