setup.py

cleanup of revlog.group when repository is local

revlog.group cached every chunk from the revlog, the behaviour was
needed to minimize the roundtrip with old-http.

The patch export the information that the repository is local or not
from the repository object down to the revlog.
Then it uses the workaround for old-http only if the repository is non-local.

The memory used server side when pulling goes down to less than 30Mo maximum
whereas without the patch more than 160Mo was used when cloning the linux kernel
repository.
The time used by cloning is roughly the same (although some caching could be
implemented if needed):
before
110.25user 20.90system 2:52.00elapsed 76%CPU (0avgtext+0avgdata 0maxresident)k
0inputs+0outputs (0major+708707minor)pagefaults 0swaps
after
112.85user 22.98system 2:50.66elapsed 79%CPU (0avgtext+0avgdata 0maxresident)k
0inputs+0outputs (0major+862862minor)pagefaults 0swaps

#!/usr/bin/env python
#
# This is the mercurial setup script.
#
# './setup.py install', or
# './setup.py --help' for more options

import glob
import sys
from distutils.core import setup, Extension
from distutils.command.install_data import install_data

import mercurial.version

# py2exe needs to be installed to work
try:
    import py2exe

    # Help py2exe to find win32com.shell
    try:
        import modulefinder
        import win32com
        for p in win32com.__path__[1:]: # Take the path to win32comext
            modulefinder.AddPackagePath("win32com", p)
        pn = "win32com.shell"
        __import__(pn)
        m = sys.modules[pn]
        for p in m.__path__[1:]:
            modulefinder.AddPackagePath(pn, p)
    except ImportError:
        pass

    # Due to the use of demandload py2exe is not finding the modules.
    # packagescan.getmodules creates a list of modules included in
    # the mercurial package plus depdent modules.
    import mercurial.packagescan
    from py2exe.build_exe import py2exe as build_exe

    class py2exe_for_demandload(build_exe):
        """ overwrites the py2exe command class for getting the build
        directory and for setting the 'includes' option."""
        def initialize_options(self):
            self.build_lib = None
            build_exe.initialize_options(self)
        def finalize_options(self):
            # Get the build directory, ie. where to search for modules.
            self.set_undefined_options('build',
                                       ('build_lib', 'build_lib'))
            # Sets the 'includes' option with the list of needed modules
            if not self.includes:
                self.includes = []
            else:
                self.includes = self.includes.split(',')
            self.includes += mercurial.packagescan.getmodules(self.build_lib,
                                                              'mercurial')
            self.includes += mercurial.packagescan.getmodules(self.build_lib,
                                                              'hgext')
            build_exe.finalize_options(self)
except ImportError:
    py2exe_for_demandload = None


# specify version string, otherwise 'hg identify' will be used:
version = ''

class install_package_data(install_data):
    def finalize_options(self):
        self.set_undefined_options('install',
                                   ('install_lib', 'install_dir'))
        install_data.finalize_options(self)

try:
    mercurial.version.remember_version(version)
    cmdclass = {'install_data': install_package_data}
    py2exe_opts = {}
    if py2exe_for_demandload is not None:
        cmdclass['py2exe'] = py2exe_for_demandload
        py2exe_opts['console'] = ['hg']
    setup(name='mercurial',
          version=mercurial.version.get_version(),
          author='Matt Mackall',
          author_email='[e-mail]',
          url='http://selenic.com/mercurial',
          description='scalable distributed SCM',
          license='GNU GPL',
          packages=['mercurial', 'hgext'],
          ext_modules=[Extension('mercurial.mpatch', ['mercurial/mpatch.c']),
                       Extension('mercurial.bdiff', ['mercurial/bdiff.c'])],
          data_files=[('mercurial/templates',
                       ['templates/map'] +
                       glob.glob('templates/map-*') +
                       glob.glob('templates/*.tmpl'))],
          cmdclass=cmdclass,
          scripts=['hg', 'hgmerge'],
          **py2exe_opts)
finally:
    mercurial.version.forget_version()