Mercurial > hg > mercurial-crew-with-dirclash
view mercurial/packagescan.py @ 2569:2264b2b077a1
run-tests.py: make tests use same python interpreter as test harness.
this is wanted because some tests run python interpreter directly.
must use same python interpreter in tests as in main harness or problems
will happen because of e.g. different python abi if run-tests.py run
with python 2.5 but system python is 2.4.
fix is to see if system python is used and is named python. if no,
put symlink called python at front of shell search path.
author | Vadim Gelfer <vadim.gelfer@gmail.com> |
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date | Thu, 06 Jul 2006 10:09:24 -0700 |
parents | 976b6b2a1613 |
children | c4325f0a9b91 |
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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 class SkipPackage(Exception): def __init__(self, reason): self.reason = reason scan_in_progress = False def scan(libpath,packagename): """ helper for finding all required modules of package <packagename> """ global scan_in_progress scan_in_progress = True # 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 try: __import__(fullname,tmp,tmp) except SkipPackage, inst: print >> sys.stderr, 'skipping %s: %s' % (fullname, inst.reason) continue 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