mirror of
https://github.com/Sneed-Group/Poodletooth-iLand
synced 2024-12-26 05:02:31 -06:00
376 lines
10 KiB
Python
Executable file
376 lines
10 KiB
Python
Executable file
"""Undocumented Module"""
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__all__ = ['usage', 'Squeezer', 'Loader', 'boot', 'open', 'explode', 'getloader', 'squeeze', 'searchPath']
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#!/usr/bin/env python
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#
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# SQUEEZE
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#
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# squeeze a python program
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#
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# installation:
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# - use this script as is, or squeeze it using the following command:
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#
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# python squeezeTool.py -1su -o squeeze -b squeezeTool squeezeTool.py
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#
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# notes:
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# - this is pretty messy. make sure to test everything carefully
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# if you change anything
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#
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# - the name "squeeze" is taken from an ABC800 utility which did
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# about the same thing with Basic II bytecodes.
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#
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# history:
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# 1.0 97-04-22 fl Created
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# 1.1 97-05-25 fl Added base64 embedding option (-1)
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# 97-05-25 fl Check for broken package file
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# 1.2 97-05-26 fl Support uncompressed packages (-u)
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# 1.3 97-05-27 fl Check byte code magic, eliminated StringIO, etc.
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# 1.4 97-06-04 fl Removed last bits of white space, removed try/except
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# 1.5 97-06-17 fl Added squeeze archive capabilities (-x)
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# 1.6 98-05-04 fl Minor fixes in preparation for public source release
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#
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# reviews:
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# "Fredrik Lundh is a friggin genius"
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# -- Aaron Watters, author of 'Internet Programming with Python'
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#
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# "I agree ... this is a friggin Good Thing"
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# -- Paul Everitt, Digital Creations
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#
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# Copyright (c) 1997 by Fredrik Lundh.
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# Copyright (c) 1997-1998 by Secret Labs AB
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#
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# info@pythonware.com
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# http://www.pythonware.com
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#
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# --------------------------------------------------------------------
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# Permission to use, copy, modify, and distribute this software and
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# its associated documentation for any purpose and without fee is
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# hereby granted. This software is provided as is.
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# --------------------------------------------------------------------
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VERSION = "1.6/98-05-04"
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MAGIC = "[PANDASQUEEZE]"
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import base64, imp, marshal, os, string, sys, md5
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# --------------------------------------------------------------------
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# usage
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def usage():
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print
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print "SQUEEZE", VERSION, "(c) 1997-1998 by Secret Labs AB"
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print """\
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Convert a Python application to a compressed module package.
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Usage: squeeze [-1ux] -o app [-b start] modules... [-d files...]
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This utility creates a compressed package file named "app.pyz", which
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contains the given module files. It also creates a bootstrap script
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named "app.py", which loads the package and imports the given "start"
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module to get things going. Example:
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squeeze -o app -b appMain app*.py
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The -1 option tells squeeze to put the package file inside the boot-
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strap script using base64 encoding. The result is a single text file
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containing the full application.
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The -u option disables compression. Otherwise, the package will be
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compressed using zlib, and the user needs zlib to run the resulting
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application.
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The -d option can be used to put additional files in the package file.
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You can access these files via "__main__.open(filename)" (returns a
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StringIO file object).
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The -x option can be used with -d to create a self-extracting archive,
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instead of a package. When the resulting script is executed, the
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data files are extracted. Omit the -b option in this case.
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"""
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sys.exit(1)
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# --------------------------------------------------------------------
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# squeezer -- collect squeezed modules
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class Squeezer:
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def __init__(self):
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self.rawbytes = self.bytes = 0
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self.modules = {}
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def addmodule(self, file):
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if file[-1] == "c":
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file = file[:-1]
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m = os.path.splitext(os.path.split(file)[1])[0]
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# read sourcefile
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f = open(file)
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codestring = f.read()
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f.close()
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# dump to file
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self.modules[m] = compile(codestring, m, "exec")
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def adddata(self, file):
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self.modules["+"+file] = open(file, "rb").read()
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def getarchive(self):
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# marshal our module dictionary
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data = marshal.dumps(self.modules)
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self.rawbytes = len(data)
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# return (compressed) dictionary
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data = zlib.compress(data, 9)
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self.bytes = len(data)
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return data
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def getstatus(self):
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return self.bytes, self.rawbytes
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# --------------------------------------------------------------------
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# loader (used in bootstrap code)
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loader = """
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import ihooks
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PYZ_MODULE = 64
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class Loader(ihooks.ModuleLoader):
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def __init__(self, modules):
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self.__modules = modules
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return ihooks.ModuleLoader.__init__(self)
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def find_module(self, name, path = None):
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try:
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self.__modules[name]
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return None, None, (None, None, PYZ_MODULE)
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except KeyError:
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return ihooks.ModuleLoader.find_module(self, name, path)
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def load_module(self, name, stuff):
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file, filename, (suff, mode, type) = stuff
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if type != PYZ_MODULE:
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return ihooks.ModuleLoader.load_module(self, name, stuff)
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#print "PYZ:", "import", name
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basename = name.split('.')[-1]
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code = self.__modules[basename]
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del self.__modules[basename] # no need to keep this one around
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m = self.hooks.add_module(name)
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m.__file__ = filename
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exec code in m.__dict__
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return m
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def boot(name, fp, size, offset = 0):
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global data
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try:
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import %(modules)s
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except ImportError:
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#print "PYZ:", "failed to load marshal and zlib libraries"
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return # cannot boot from PYZ file
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#print "PYZ:", "boot from", name+".PYZ"
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# load archive and install import hook
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if offset:
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data = fp[offset:]
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else:
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data = fp.read(size)
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fp.close()
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if len(data) != size:
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raise IOError, "package is truncated"
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data = marshal.loads(%(data)s)
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ihooks.install(ihooks.ModuleImporter(Loader(data)))
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"""
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loaderopen = """
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def open(name):
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import StringIO
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try:
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return StringIO.StringIO(data["+"+name])
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except KeyError:
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raise IOError, (0, "no such file")
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"""
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loaderexplode = """
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def explode():
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for k, v in data.items():
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if k[0] == "+":
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try:
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open(k[1:], "wb").write(v)
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print k[1:], "extracted ok"
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except IOError, v:
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print k[1:], "failed:", "IOError", v
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"""
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def getloader(data, package):
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s = loader
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if data:
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if explode:
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s = s + loaderexplode
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else:
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s = s + loaderopen
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dict = {
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"modules": "marshal, zlib",
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"data": "zlib.decompress(data)",
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}
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s = s % dict
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return marshal.dumps(compile(s, "<package>", "exec"))
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# --------------------------------------------------------------------
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# Main
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# --------------------------------------------------------------------
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#
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# parse options
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import getopt, glob, sys
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import zlib
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embed = 0
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explode = 0
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def squeeze(app, start, filelist, outputDir):
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localMagic = MAGIC
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data = None
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bootstrap = os.path.join(outputDir, app + ".py")
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archiveBase = app + ".pyz"
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archive = os.path.join(outputDir, archiveBase)
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archiveid = app
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#
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# avoid overwriting files not generated by squeeze
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try:
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fp = open(bootstrap)
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s = fp.readline()
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string.index(s, MAGIC)
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except IOError:
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pass
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except ValueError:
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print bootstrap, "was not created by squeeze. You have to manually"
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print "remove the file to proceed."
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sys.exit(1)
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#
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# collect modules
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sq = Squeezer()
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for file in filelist:
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# print 'addmodule:', file
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sq.addmodule(file)
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package = sq.getarchive()
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size = len(package)
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#
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# get loader
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loader = getloader(data, package)
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zbegin, zend = "zlib.decompress(", ")"
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loader = zlib.compress(loader, 9)
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loaderlen = len(loader)
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magic = repr(imp.get_magic())
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version = string.split(sys.version)[0]
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#
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# generate script and package files
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if embed:
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# embedded archive
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data = base64.encodestring(loader + package)
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fp = open(bootstrap, "w")
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fp.write('''\
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#%(localMagic)s %(archiveid)s
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import ihooks, zlib, base64, marshal
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s=base64.decodestring("""
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%(data)s""")
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exec marshal.loads(%(zbegin)ss[:%(loaderlen)d]%(zend)s)
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boot("%(app)s", s, %(size)d, %(loaderlen)d)
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exec "import %(start)s"
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''' % locals())
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bytes = fp.tell()
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else:
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# separate archive file
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fp = open(archive, "wb")
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fp.write(loader)
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fp.write(package)
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bytes = fp.tell()
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fp.close()
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#
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# create bootstrap code
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fp = open(bootstrap, "w")
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# Note: David Rose adjusted the following to be panda-specific.
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fp.write("""\
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#%(localMagic)s %(archiveid)s
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import ihooks, zlib, marshal, os, sys
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import pandac
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def searchPath(filename):
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# Look along pandac.__path__ for the indicated filename. Returns
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# the located pathname, or None if the filename is not found.
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for dir in pandac.__path__:
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pathname = os.path.join(dir, filename)
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if os.path.exists(pathname):
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return pathname
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return None
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# Look for %(archiveBase)s along pandac.__path__.
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archiveName = "%(archiveBase)s"
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archivePath = searchPath(archiveName)
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if archivePath == None:
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raise ImportError, "Could not locate pandac.%%s." %% (archiveName)
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f=open(archivePath,"rb")
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exec marshal.loads(%(zbegin)sf.read(%(loaderlen)d)%(zend)s)
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boot("%(app)s", f, %(size)d)
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exec "from %(start)s import *"
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#exec "run()"
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""" % locals())
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bytes = bytes + fp.tell()
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fp.close()
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#
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# show statistics
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dummy, rawbytes = sq.getstatus()
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print "squeezed", rawbytes, "to", bytes, "bytes",
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print "(%d%%)" % (bytes * 100 / rawbytes)
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