view setup.py @ 9420:d0db168136dc

manifest/revlog: do not let the revlog cache mutable objects

If a buffer of an mutable object is passed to revlog.addrevision(), the revlog
will happily store it in its cache. Later when the revlog reuses the cached
entry, if the manifest modified the object in-between, all kind of bugs
appears.

We fix it by:
- passing immutable objects to addrevision() if they are already available
- only storing the text in the cache if it's of str type

Then we can remove the conversion of the cache entry to str() during
retrieval. That was probably just there hiding the bug for the common cases
but not really fixing it.

#!/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='[e-mail]',
      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)