cpython/Tools/freeze/freeze.py

352 lines
10 KiB
Python
Executable File

#! /usr/bin/env python
"""Freeze a Python script into a binary.
usage: freeze [options...] script.py [module]...
Options:
-p prefix: This is the prefix used when you ran ``make install''
in the Python build directory.
(If you never ran this, freeze won't work.)
The default is whatever sys.prefix evaluates to.
It can also be the top directory of the Python source
tree; then -P must point to the build tree.
-P exec_prefix: Like -p but this is the 'exec_prefix', used to
install objects etc. The default is whatever sys.exec_prefix
evaluates to, or the -p argument if given.
If -p points to the Python source tree, -P must point
to the build tree, if different.
-e extension: A directory containing additional .o files that
may be used to resolve modules. This directory
should also have a Setup file describing the .o files.
More than one -e option may be given.
-o dir: Directory where the output files are created; default '.'.
-h: Print this help message.
-w: Toggle Windows (NT or 95) behavior.
(For debugging only -- on a win32 platform, win32 behaviour
is automatic.)
-s subsystem: Specify the subsystem; 'windows' or 'console' (default).
(For Windows only.)
Arguments:
script.py: The Python script to be executed by the resulting binary.
It *must* end with a .py suffix!
module ...: Additional Python modules (referenced by pathname)
that will be included in the resulting binary. These
may be .py or .pyc files.
NOTES:
In order to use freeze successfully, you must have built Python and
installed it ("make install").
The script should not use modules provided only as shared libraries;
if it does, the resulting binary is not self-contained.
"""
# Import standard modules
import cmp
import getopt
import os
import string
import sys
import addpack
# Import the freeze-private modules
import checkextensions
import findmodules
import makeconfig
import makefreeze
import makemakefile
import parsesetup
# Main program
def main():
# overridable context
prefix = None # settable with -p option
exec_prefix = None # settable with -P option
extensions = []
path = sys.path
odir = ''
win = sys.platform[:3] == 'win'
# output files
frozen_c = 'frozen.c'
config_c = 'config.c'
target = 'a.out' # normally derived from script name
makefile = 'Makefile'
subsystem = 'console'
# parse command line
try:
opts, args = getopt.getopt(sys.argv[1:], 'he:o:p:P:s:w')
except getopt.error, msg:
usage('getopt error: ' + str(msg))
# proces option arguments
for o, a in opts:
if o == '-h':
print __doc__
return
if o == '-e':
extensions.append(a)
if o == '-o':
odir = a
if o == '-p':
prefix = a
if o == '-P':
exec_prefix = a
if o == '-w':
win = not win
if o == '-s':
if not win:
usage("-s subsystem option only on Windows")
subsystem = a
# default prefix and exec_prefix
if not exec_prefix:
if prefix:
exec_prefix = prefix
else:
exec_prefix = sys.exec_prefix
if not prefix:
prefix = sys.prefix
# determine whether -p points to the Python source tree
ishome = os.path.exists(os.path.join(prefix, 'Include', 'pythonrun.h'))
# locations derived from options
version = sys.version[:3]
if ishome:
print "(Using Python source directory)"
binlib = exec_prefix
incldir = os.path.join(prefix, 'Include')
config_c_in = os.path.join(prefix, 'Modules', 'config.c.in')
frozenmain_c = os.path.join(prefix, 'Python', 'frozenmain.c')
makefile_in = os.path.join(exec_prefix, 'Modules', 'Makefile')
else:
binlib = os.path.join(exec_prefix,
'lib', 'python%s' % version, 'config')
incldir = os.path.join(prefix, 'include', 'python%s' % version)
config_c_in = os.path.join(binlib, 'config.c.in')
frozenmain_c = os.path.join(binlib, 'frozenmain.c')
makefile_in = os.path.join(binlib, 'Makefile')
supp_sources = []
defines = []
includes = ['-I' + incldir, '-I' + binlib]
# sanity check of directories and files
for dir in [prefix, exec_prefix, binlib, incldir] + extensions:
if not os.path.exists(dir):
usage('needed directory %s not found' % dir)
if not os.path.isdir(dir):
usage('%s: not a directory' % dir)
if win:
files = supp_sources
else:
files = [config_c_in, makefile_in] + supp_sources
for file in supp_sources:
if not os.path.exists(file):
usage('needed file %s not found' % file)
if not os.path.isfile(file):
usage('%s: not a plain file' % file)
if not win:
for dir in extensions:
setup = os.path.join(dir, 'Setup')
if not os.path.exists(setup):
usage('needed file %s not found' % setup)
if not os.path.isfile(setup):
usage('%s: not a plain file' % setup)
# check that enough arguments are passed
if not args:
usage('at least one filename argument required')
# check that the script name ends in ".py"
if args[0][-3:] != ".py":
usage('the script name must have a .py suffix')
# check that file arguments exist
for arg in args:
if not os.path.exists(arg):
usage('argument %s not found' % arg)
if not os.path.isfile(arg):
usage('%s: not a plain file' % arg)
# process non-option arguments
scriptfile = args[0]
modules = args[1:]
# derive target name from script name
base = os.path.basename(scriptfile)
base, ext = os.path.splitext(base)
if base:
if base != scriptfile:
target = base
else:
target = base + '.bin'
# handle -o option
base_frozen_c = frozen_c
base_config_c = config_c
base_target = target
if odir and not os.path.isdir(odir):
try:
os.mkdir(odir)
print "Created output directory", odir
except os.error, msg:
usage('%s: mkdir failed (%s)' % (odir, str(msg)))
if odir:
frozen_c = os.path.join(odir, frozen_c)
config_c = os.path.join(odir, config_c)
target = os.path.join(odir, target)
makefile = os.path.join(odir, makefile)
# Actual work starts here...
dict = findmodules.findmodules(scriptfile, modules, path)
names = dict.keys()
names.sort()
print "Modules being frozen:"
for name in names:
print '\t', name
backup = frozen_c + '~'
try:
os.rename(frozen_c, backup)
except os.error:
backup = None
outfp = open(frozen_c, 'w')
try:
makefreeze.makefreeze(outfp, dict)
finally:
outfp.close()
if backup:
if cmp.cmp(backup, frozen_c):
sys.stderr.write('%s not changed, not written\n' %
frozen_c)
os.rename(backup, frozen_c)
if win:
# Taking a shortcut here...
import winmakemakefile
outfp = open(makefile, 'w')
try:
winmakemakefile.makemakefile(outfp,
locals(),
[frozenmain_c, frozen_c],
target)
finally:
outfp.close()
return
builtins = []
unknown = []
mods = dict.keys()
mods.sort()
for mod in mods:
if dict[mod] == '<builtin>':
builtins.append(mod)
elif dict[mod] == '<unknown>':
unknown.append(mod)
addfiles = []
if unknown:
addfiles, addmods = \
checkextensions.checkextensions(unknown, extensions)
for mod in addmods:
unknown.remove(mod)
builtins = builtins + addmods
if unknown:
sys.stderr.write('Warning: unknown modules remain: %s\n' %
string.join(unknown))
builtins.sort()
infp = open(config_c_in)
backup = config_c + '~'
try:
os.rename(config_c, backup)
except os.error:
backup = None
outfp = open(config_c, 'w')
try:
makeconfig.makeconfig(infp, outfp, builtins)
finally:
outfp.close()
infp.close()
if backup:
if cmp.cmp(backup, config_c):
sys.stderr.write('%s not changed, not written\n' %
config_c)
os.rename(backup, config_c)
cflags = defines + includes + ['$(OPT)']
libs = [os.path.join(binlib, 'libpython$(VERSION).a')]
makevars = parsesetup.getmakevars(makefile_in)
somevars = {}
for key in makevars.keys():
somevars[key] = makevars[key]
somevars['CFLAGS'] = string.join(cflags) # override
files = ['$(OPT)', '$(LDFLAGS)', base_config_c, base_frozen_c] + \
supp_sources + addfiles + libs + \
['$(MODLIBS)', '$(LIBS)', '$(SYSLIBS)']
backup = makefile + '~'
try:
os.rename(makefile, backup)
except os.error:
backup = None
outfp = open(makefile, 'w')
try:
makemakefile.makemakefile(outfp, somevars, files, base_target)
finally:
outfp.close()
if backup:
if not cmp.cmp(backup, makefile):
print 'previous Makefile saved as', backup
else:
sys.stderr.write('%s not changed, not written\n' %
makefile)
os.rename(backup, makefile)
# Done!
if odir:
print 'Now run "make" in', odir,
print 'to build the target:', base_target
else:
print 'Now run "make" to build the target:', base_target
# Print usage message and exit
def usage(msg):
sys.stdout = sys.stderr
print "Error:", msg
print "Use ``%s -h'' for help" % sys.argv[0]
sys.exit(2)
main()
# Local Variables:
# indent-tabs-mode: nil
# End: