setup.py

New lazy index code for revlogs.

This tunes for large repositories.   It does not read the whole
index file in one big chunk, but tries to buffer reads in more
reasonable chunks instead.

Search speeds are improved in two ways.  When trying to find a
specific sha hash, it searches from the end of the file backward.
More recent entries are more likely to be relevant, especially the
tip.

Also, this can load only the mapping of nodes to revlog index number.
Loading the map uses less cpu (no struct.unpack) and much less
memory than loading both the map and the index.

This cuts down the time for hg tip on the 80,000 changeset
kernel repo from 1.8s to 3.69s.  Most commands the pull a single
rev out of a big index get roughly the same benefit.  Commands
that read the whole index are not slower.

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

import sys
if not hasattr(sys, 'version_info') or sys.version_info < (2, 3):
    raise SystemExit, "Mercurial requires python 2.3 or later."

import glob
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)

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')),
                    ('mercurial/templates/static',
                    glob.glob('templates/static/*'))],
        cmdclass=cmdclass,
        scripts=['hg', 'hgmerge'],
        options=dict(bdist_mpkg=dict(zipdist=True,
                                    license='COPYING',
                                    readme='contrib/macosx/Readme.html',
                                    welcome='contrib/macosx/Welcome.html')),
        **py2exe_opts)