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

import sys
if not hasattr(sys, 'version_info') or sys.version_info < (2, 4, 0, 'final'):
   raise SystemExit("Mercurial requires Python 2.4 or later.")

# Solaris Python packaging brain damage
try:
   import hashlib
   sha = hashlib.sha1()
except:
   try:
       import sha
   except:
       raise SystemExit(
           "Couldn't import standard hashlib (incomplete Python install).")

try:
   import zlib
except:
   raise SystemExit(
       "Couldn't import standard zlib (incomplete Python install).")

import os, subprocess, time
import shutil
import tempfile
from distutils.core import setup, Extension
from distutils.dist import Distribution
from distutils.command.install_data import install_data
from distutils.command.build import build
from distutils.command.build_py import build_py
from distutils.spawn import spawn, find_executable
from distutils.ccompiler import new_compiler

extra = {}
scripts = ['hg']
if os.name == 'nt':
   scripts.append('contrib/win32/hg.bat')

# simplified version of distutils.ccompiler.CCompiler.has_function
# that actually removes its temporary files.
def has_function(cc, funcname):
   tmpdir = tempfile.mkdtemp(prefix='hg-install-')
   devnull = oldstderr = None
   try:
       try:
           fname = os.path.join(tmpdir, 'funcname.c')
           f = open(fname, 'w')
           f.write('int main(void) {\n')
           f.write('    %s();\n' % funcname)
           f.write('}\n')
           f.close()
           # Redirect stderr to /dev/null to hide any error messages
           # from the compiler.
           # This will have to be changed if we ever have to check
           # for a function on Windows.
           devnull = open('/dev/null', 'w')
           oldstderr = os.dup(sys.stderr.fileno())
           os.dup2(devnull.fileno(), sys.stderr.fileno())
           objects = cc.compile([fname], output_dir=tmpdir)
           cc.link_executable(objects, os.path.join(tmpdir, "a.out"))
       except:
           return False
       return True
   finally:
       if oldstderr is not None:
           os.dup2(oldstderr, sys.stderr.fileno())
       if devnull is not None:
           devnull.close()
       shutil.rmtree(tmpdir)

# 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

   extra['console'] = ['hg']

except ImportError:
   pass

version = None

if os.path.isdir('.hg'):
   # Execute hg out of this directory with a custom environment which
   # includes the pure Python modules in mercurial/pure. We also take
   # care to not use any hgrc files and do no localization.
   pypath = ['mercurial', os.path.join('mercurial', 'pure')]
   env = {'PYTHONPATH': os.pathsep.join(pypath),
          'HGRCPATH': '',
          'LANGUAGE': 'C'}
   if 'SystemRoot' in os.environ:
       # Copy SystemRoot into the custom environment for Python 2.6
       # under Windows. Otherwise, the subprocess will fail with
       # error 0xc0150004. See: http://bugs.python.org/issue3440
       env['SystemRoot'] = os.environ['SystemRoot']
   cmd = [sys.executable, 'hg', 'id', '-i', '-t']

   p = subprocess.Popen(cmd, stdout=subprocess.PIPE,
                        stderr=subprocess.PIPE, env=env)
   out, err = p.communicate()

   # If root is executing setup.py, but the repository is owned by
   # another user (as in "sudo python setup.py install") we will get
   # trust warnings since the .hg/hgrc file is untrusted. That is
   # fine, we don't want to load it anyway.
   err = [e for e in err.splitlines()
          if not e.startswith('Not trusting file')]
   if err:
       sys.stderr.write('warning: could not establish Mercurial '
                        'version:\n%s\n' % '\n'.join(err))
   else:
       l = out.split()
       while len(l) > 1 and l[-1][0].isalpha(): # remove non-numbered tags
           l.pop()
       if l:
           version = l[-1] # latest tag or revision number
           if version.endswith('+'):
               version += time.strftime('%Y%m%d')
elif os.path.exists('.hg_archival.txt'):
   hgarchival = open('.hg_archival.txt')
   for line in hgarchival:
       if line.startswith('node:'):
           version = line.split(':')[1].strip()[:12]
           break

if version:
   f = open("mercurial/__version__.py", "w")
   f.write('# this file is autogenerated by setup.py\n')
   f.write('version = "%s"\n' % version)
   f.close()


try:
   from mercurial import __version__
   version = __version__.version
except ImportError:
   version = 'unknown'

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

class build_mo(build):

   description = "build translations (.mo files)"

   def run(self):
       if not find_executable('msgfmt'):
           self.warn("could not find msgfmt executable, no translations "
                    "will be built")
           return

       podir = 'i18n'
       if not os.path.isdir(podir):
           self.warn("could not find %s/ directory" % podir)
           return

       join = os.path.join
       for po in os.listdir(podir):
           if not po.endswith('.po'):
               continue
           pofile = join(podir, po)
           modir = join('locale', po[:-3], 'LC_MESSAGES')
           mofile = join(modir, 'hg.mo')
           cmd = ['msgfmt', '-v', '-o', mofile, pofile]
           if sys.platform != 'sunos5':
               # msgfmt on Solaris does not know about -c
               cmd.append('-c')
           self.mkpath(modir)
           self.make_file([pofile], mofile, spawn, (cmd,))
           self.distribution.data_files.append((join('mercurial', modir),
                                                [mofile]))

build.sub_commands.append(('build_mo', None))

Distribution.pure = 0
Distribution.global_options.append(('pure', None, "use pure (slow) Python "
                                   "code instead of C extensions"))

class hg_build_py(build_py):

   def finalize_options(self):
       build_py.finalize_options(self)

       if self.distribution.pure:
           if self.py_modules is None:
               self.py_modules = []
           for ext in self.distribution.ext_modules:
               if ext.name.startswith("mercurial."):
                   self.py_modules.append("mercurial.pure.%s" % ext.name[10:])
           self.distribution.ext_modules = []

   def find_modules(self):
       modules = build_py.find_modules(self)
       for module in modules:
           if module[0] == "mercurial.pure":
               if module[1] != "__init__":
                   yield ("mercurial", module[1], module[2])
           else:
               yield module

cmdclass = {'install_data': install_package_data,
           'build_mo': build_mo,
           'build_py': hg_build_py}

ext_modules=[
   Extension('mercurial.base85', ['mercurial/base85.c']),
   Extension('mercurial.bdiff', ['mercurial/bdiff.c']),
   Extension('mercurial.diffhelpers', ['mercurial/diffhelpers.c']),
   Extension('mercurial.mpatch', ['mercurial/mpatch.c']),
   Extension('mercurial.parsers', ['mercurial/parsers.c']),
   Extension('mercurial.osutil', ['mercurial/osutil.c']),
   ]

packages = ['mercurial', 'mercurial.hgweb', 'hgext', 'hgext.convert',
           'hgext.highlight', 'hgext.zeroconf', ]

if sys.platform == 'linux2' and os.uname()[2] > '2.6':
   # The inotify extension is only usable with Linux 2.6 kernels.
   # You also need a reasonably recent C library.
   cc = new_compiler()
   if has_function(cc, 'inotify_add_watch'):
       ext_modules.append(Extension('hgext.inotify.linux._inotify',
                                    ['hgext/inotify/linux/_inotify.c']))
       packages.extend(['hgext.inotify', 'hgext.inotify.linux'])

datafiles = []
for root in ('templates', 'i18n'):
   for dir, dirs, files in os.walk(root):
       dirs[:] = [x for x in dirs if not x.startswith('.')]
       files = [x for x in files if not x.startswith('.')]
       datafiles.append((os.path.join('mercurial', dir),
                         [os.path.join(dir, file_) for file_ in files]))

setup(name='mercurial',
     version=version,
     author='Matt Mackall',
     author_email='[email protected]',
     url='http://mercurial.selenic.com/',
     description='Scalable distributed SCM',
     license='GNU GPL',
     scripts=scripts,
     packages=packages,
     ext_modules=ext_modules,
     data_files=datafiles,
     cmdclass=cmdclass,
     options=dict(py2exe=dict(packages=['hgext', 'email']),
                  bdist_mpkg=dict(zipdist=True,
                                  license='COPYING',
                                  readme='contrib/macosx/Readme.html',
                                  welcome='contrib/macosx/Welcome.html')),
     **extra)

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