Mercurial > hg > mercurial-crew-with-dirclash
view mercurial/packagescan.py @ 2434:a2df85adface
http server: support persistent connections.
only "hg serve" affected yet. http server running cgi script will not
use persistent connections. support for fastcgi will help that.
clients that support keepalive can use one tcp connection for all
commands during clone and pull. this makes latency of binary search
during pull much lower over wan.
if server does not know content-length, it will force connection to
close at end. right fix is to use chunked transfer-encoding but this is
easier and does not hurt performance. only command that is affected is
"changegroup" which is always last command during a pull.
author | Vadim Gelfer <vadim.gelfer@gmail.com> |
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date | Thu, 15 Jun 2006 12:55:58 -0700 |
parents | 82cef38fea56 |
children | 976b6b2a1613 |
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# packagescan.py - Helper module for identifing used modules. # Used for the py2exe distutil. # This module must be the first mercurial module imported in setup.py # # Copyright 2005 Volker Kleinfeld <Volker.Kleinfeld@gmx.de> # # This software may be used and distributed according to the terms # of the GNU General Public License, incorporated herein by reference. import glob import os import sys import ihooks import types import string # Install this module as fake demandload module sys.modules['mercurial.demandload'] = sys.modules[__name__] # Requiredmodules contains the modules imported by demandload. # Please note that demandload can be invoked before the # mercurial.packagescan.scan method is invoked in case a mercurial # module is imported. requiredmodules = {} def demandload(scope, modules): """ fake demandload function that collects the required modules foo import foo foo bar import foo, bar foo.bar import foo.bar foo:bar from foo import bar foo:bar,quux from foo import bar, quux foo.bar:quux from foo.bar import quux""" for m in modules.split(): mod = None try: module, fromlist = m.split(':') fromlist = fromlist.split(',') except: module = m fromlist = [] mod = __import__(module, scope, scope, fromlist) if fromlist == []: # mod is only the top package, but we need all packages comp = module.split('.') i = 1 mn = comp[0] while True: # mn and mod.__name__ might not be the same scope[mn] = mod requiredmodules[mod.__name__] = 1 if len(comp) == i: break mod = getattr(mod,comp[i]) mn = string.join(comp[:i+1],'.') i += 1 else: # mod is the last package in the component list requiredmodules[mod.__name__] = 1 for f in fromlist: scope[f] = getattr(mod,f) if type(scope[f]) == types.ModuleType: requiredmodules[scope[f].__name__] = 1 def scan(libpath,packagename): """ helper for finding all required modules of package <packagename> """ # Use the package in the build directory libpath = os.path.abspath(libpath) sys.path.insert(0,libpath) packdir = os.path.join(libpath,packagename.replace('.', '/')) # A normal import would not find the package in # the build directory. ihook is used to force the import. # After the package is imported the import scope for # the following imports is settled. p = importfrom(packdir) globals()[packagename] = p sys.modules[packagename] = p # Fetch the python modules in the package cwd = os.getcwd() os.chdir(packdir) pymodulefiles = glob.glob('*.py') extmodulefiles = glob.glob('*.pyd') os.chdir(cwd) # Import all python modules and by that run the fake demandload for m in pymodulefiles: if m == '__init__.py': continue tmp = {} mname,ext = os.path.splitext(m) fullname = packagename+'.'+mname __import__(fullname,tmp,tmp) requiredmodules[fullname] = 1 # Import all extension modules and by that run the fake demandload for m in extmodulefiles: tmp = {} mname,ext = os.path.splitext(m) fullname = packagename+'.'+mname __import__(fullname,tmp,tmp) requiredmodules[fullname] = 1 def getmodules(): return requiredmodules.keys() def importfrom(filename): """ import module/package from a named file and returns the module. It does not check on sys.modules or includes the module in the scope. """ loader = ihooks.BasicModuleLoader() path, file = os.path.split(filename) name, ext = os.path.splitext(file) m = loader.find_module_in_dir(name, path) if not m: raise ImportError, name m = loader.load_module(name, m) return m