Commits

Ronald Oussoren committed 246a536

Sync with altgraph version of setup.py

Comments (0)

Files changed (3)

distribute_setup.py

-#!python
-"""Bootstrap distribute installation
-
-If you want to use setuptools in your package's setup.py, just include this
-file in the same directory with it, and add this to the top of your setup.py::
-
-    from distribute_setup import use_setuptools
-    use_setuptools()
-
-If you want to require a specific version of setuptools, set a download
-mirror, or use an alternate download directory, you can do so by supplying
-the appropriate options to ``use_setuptools()``.
-
-This file can also be run as a script to install or upgrade setuptools.
-"""
-import os
-import sys
-import time
-import fnmatch
-import tempfile
-import tarfile
-from distutils import log
-
-try:
-    from site import USER_SITE
-except ImportError:
-    USER_SITE = None
-
-try:
-    import subprocess
-
-    def _python_cmd(*args):
-        args = (sys.executable,) + args
-        return subprocess.call(args) == 0
-
-except ImportError:
-    # will be used for python 2.3
-    def _python_cmd(*args):
-        args = (sys.executable,) + args
-        # quoting arguments if windows
-        if sys.platform == 'win32':
-            def quote(arg):
-                if ' ' in arg:
-                    return '"%s"' % arg
-                return arg
-            args = [quote(arg) for arg in args]
-        return os.spawnl(os.P_WAIT, sys.executable, *args) == 0
-
-DEFAULT_VERSION = "0.6.28"
-DEFAULT_URL = "http://pypi.python.org/packages/source/d/distribute/"
-SETUPTOOLS_PKG_INFO = """\
-Metadata-Version: 1.0
-Name: setuptools
-Version: 0.6c9
-Summary: xxxx
-Home-page: xxx
-Author: xxx
-Author-email: xxx
-License: xxx
-Description: xxx
-"""
-
-
-def _install(tarball):
-    # extracting the tarball
-    tmpdir = tempfile.mkdtemp()
-    log.warn('Extracting in %s', tmpdir)
-    old_wd = os.getcwd()
-    try:
-        os.chdir(tmpdir)
-        tar = tarfile.open(tarball)
-        _extractall(tar)
-        tar.close()
-
-        # going in the directory
-        subdir = os.path.join(tmpdir, os.listdir(tmpdir)[0])
-        os.chdir(subdir)
-        log.warn('Now working in %s', subdir)
-
-        # installing
-        log.warn('Installing Distribute')
-        assert _python_cmd('setup.py', 'install')
-    finally:
-        os.chdir(old_wd)
-
-
-def _build_egg(egg, tarball, to_dir):
-    # extracting the tarball
-    tmpdir = tempfile.mkdtemp()
-    log.warn('Extracting in %s', tmpdir)
-    old_wd = os.getcwd()
-    try:
-        os.chdir(tmpdir)
-        tar = tarfile.open(tarball)
-        _extractall(tar)
-        tar.close()
-
-        # going in the directory
-        subdir = os.path.join(tmpdir, os.listdir(tmpdir)[0])
-        os.chdir(subdir)
-        log.warn('Now working in %s', subdir)
-
-        # building an egg
-        log.warn('Building a Distribute egg in %s', to_dir)
-        _python_cmd('setup.py', '-q', 'bdist_egg', '--dist-dir', to_dir)
-
-    finally:
-        os.chdir(old_wd)
-    # returning the result
-    log.warn(egg)
-    if not os.path.exists(egg):
-        raise IOError('Could not build the egg.')
-
-
-def _do_download(version, download_base, to_dir, download_delay):
-    egg = os.path.join(to_dir, 'distribute-%s-py%d.%d.egg'
-                       % (version, sys.version_info[0], sys.version_info[1]))
-    if not os.path.exists(egg):
-        tarball = download_setuptools(version, download_base,
-                                      to_dir, download_delay)
-        _build_egg(egg, tarball, to_dir)
-    sys.path.insert(0, egg)
-    import setuptools
-    setuptools.bootstrap_install_from = egg
-
-
-def use_setuptools(version=DEFAULT_VERSION, download_base=DEFAULT_URL,
-                   to_dir=os.curdir, download_delay=15, no_fake=True):
-    # making sure we use the absolute path
-    to_dir = os.path.abspath(to_dir)
-    was_imported = 'pkg_resources' in sys.modules or \
-        'setuptools' in sys.modules
-    try:
-        try:
-            import pkg_resources
-            if not hasattr(pkg_resources, '_distribute'):
-                if not no_fake:
-                    _fake_setuptools()
-                raise ImportError
-        except ImportError:
-            return _do_download(version, download_base, to_dir, download_delay)
-        try:
-            pkg_resources.require("distribute>="+version)
-            return
-        except pkg_resources.VersionConflict:
-            e = sys.exc_info()[1]
-            if was_imported:
-                sys.stderr.write(
-                "The required version of distribute (>=%s) is not available,\n"
-                "and can't be installed while this script is running. Please\n"
-                "install a more recent version first, using\n"
-                "'easy_install -U distribute'."
-                "\n\n(Currently using %r)\n" % (version, e.args[0]))
-                sys.exit(2)
-            else:
-                del pkg_resources, sys.modules['pkg_resources']    # reload ok
-                return _do_download(version, download_base, to_dir,
-                                    download_delay)
-        except pkg_resources.DistributionNotFound:
-            return _do_download(version, download_base, to_dir,
-                                download_delay)
-    finally:
-        if not no_fake:
-            _create_fake_setuptools_pkg_info(to_dir)
-
-def download_setuptools(version=DEFAULT_VERSION, download_base=DEFAULT_URL,
-                        to_dir=os.curdir, delay=15):
-    """Download distribute from a specified location and return its filename
-
-    `version` should be a valid distribute version number that is available
-    as an egg for download under the `download_base` URL (which should end
-    with a '/'). `to_dir` is the directory where the egg will be downloaded.
-    `delay` is the number of seconds to pause before an actual download
-    attempt.
-    """
-    # making sure we use the absolute path
-    to_dir = os.path.abspath(to_dir)
-    try:
-        from urllib.request import urlopen
-    except ImportError:
-        from urllib2 import urlopen
-    tgz_name = "distribute-%s.tar.gz" % version
-    url = download_base + tgz_name
-    saveto = os.path.join(to_dir, tgz_name)
-    src = dst = None
-    if not os.path.exists(saveto):  # Avoid repeated downloads
-        try:
-            log.warn("Downloading %s", url)
-            src = urlopen(url)
-            # Read/write all in one block, so we don't create a corrupt file
-            # if the download is interrupted.
-            data = src.read()
-            dst = open(saveto, "wb")
-            dst.write(data)
-        finally:
-            if src:
-                src.close()
-            if dst:
-                dst.close()
-    return os.path.realpath(saveto)
-
-
-def _patch_file(path, content):
-    """Will backup the file then patch it"""
-    existing_content = open(path).read()
-    if existing_content == content:
-        # already patched
-        log.warn('Already patched.')
-        return False
-    log.warn('Patching...')
-    _rename_path(path)
-    f = open(path, 'w')
-    try:
-        f.write(content)
-    finally:
-        f.close()
-    return True
-
-
-def _same_content(path, content):
-    return open(path).read() == content
-
-
-def _rename_path(path):
-    new_name = path + '.OLD.%s' % time.time()
-    log.warn('Renaming %s into %s', path, new_name)
-    try:
-        from setuptools.sandbox import DirectorySandbox
-        def _violation(*args):
-            pass
-        DirectorySandbox._violation = _violation
-    except ImportError:
-        pass
-
-    os.rename(path, new_name)
-    return new_name
-
-
-def _remove_flat_installation(placeholder):
-    if not os.path.isdir(placeholder):
-        log.warn('Unkown installation at %s', placeholder)
-        return False
-    found = False
-    for file in os.listdir(placeholder):
-        if fnmatch.fnmatch(file, 'setuptools*.egg-info'):
-            found = True
-            break
-    if not found:
-        log.warn('Could not locate setuptools*.egg-info')
-        return
-
-    log.warn('Removing elements out of the way...')
-    pkg_info = os.path.join(placeholder, file)
-    if os.path.isdir(pkg_info):
-        patched = _patch_egg_dir(pkg_info)
-    else:
-        patched = _patch_file(pkg_info, SETUPTOOLS_PKG_INFO)
-
-    if not patched:
-        log.warn('%s already patched.', pkg_info)
-        return False
-    # now let's move the files out of the way
-    for element in ('setuptools', 'pkg_resources.py', 'site.py'):
-        element = os.path.join(placeholder, element)
-        if os.path.exists(element):
-            _rename_path(element)
-        else:
-            log.warn('Could not find the %s element of the '
-                     'Setuptools distribution', element)
-    return True
-
-
-def _after_install(dist):
-    log.warn('After install bootstrap.')
-    placeholder = dist.get_command_obj('install').install_purelib
-    _create_fake_setuptools_pkg_info(placeholder)
-
-def _create_fake_setuptools_pkg_info(placeholder):
-    if not placeholder or not os.path.exists(placeholder):
-        log.warn('Could not find the install location')
-        return
-    pyver = '%s.%s' % (sys.version_info[0], sys.version_info[1])
-    setuptools_file = 'setuptools-0.6c9-py%s.egg-info' % pyver
-    pkg_info = os.path.join(placeholder, setuptools_file)
-    if os.path.exists(pkg_info):
-        log.warn('%s already exists', pkg_info)
-        return
-    log.warn('Creating %s', pkg_info)
-    f = open(pkg_info, 'w')
-    try:
-        f.write(SETUPTOOLS_PKG_INFO)
-    finally:
-        f.close()
-    pth_file = os.path.join(placeholder, 'setuptools.pth')
-    log.warn('Creating %s', pth_file)
-    f = open(pth_file, 'w')
-    try:
-        f.write(os.path.join(os.curdir, setuptools_file))
-    finally:
-        f.close()
-
-
-def _patch_egg_dir(path):
-    # let's check if it's already patched
-    pkg_info = os.path.join(path, 'EGG-INFO', 'PKG-INFO')
-    if os.path.exists(pkg_info):
-        if _same_content(pkg_info, SETUPTOOLS_PKG_INFO):
-            log.warn('%s already patched.', pkg_info)
-            return False
-    _rename_path(path)
-    os.mkdir(path)
-    os.mkdir(os.path.join(path, 'EGG-INFO'))
-    pkg_info = os.path.join(path, 'EGG-INFO', 'PKG-INFO')
-    f = open(pkg_info, 'w')
-    try:
-        f.write(SETUPTOOLS_PKG_INFO)
-    finally:
-        f.close()
-    return True
-
-
-def _before_install():
-    log.warn('Before install bootstrap.')
-    _fake_setuptools()
-
-
-def _under_prefix(location):
-    if 'install' not in sys.argv:
-        return True
-    args = sys.argv[sys.argv.index('install')+1:]
-    for index, arg in enumerate(args):
-        for option in ('--root', '--prefix'):
-            if arg.startswith('%s=' % option):
-                top_dir = arg.split('root=')[-1]
-                return location.startswith(top_dir)
-            elif arg == option:
-                if len(args) > index:
-                    top_dir = args[index+1]
-                    return location.startswith(top_dir)
-            elif option == '--user' and USER_SITE is not None:
-                return location.startswith(USER_SITE)
-    return True
-
-
-def _fake_setuptools():
-    log.warn('Scanning installed packages')
-    try:
-        import pkg_resources
-    except ImportError:
-        # we're cool
-        log.warn('Setuptools or Distribute does not seem to be installed.')
-        return
-    ws = pkg_resources.working_set
-    try:
-        setuptools_dist = ws.find(pkg_resources.Requirement.parse('setuptools',
-                                  replacement=False))
-    except TypeError:
-        # old distribute API
-        setuptools_dist = ws.find(pkg_resources.Requirement.parse('setuptools'))
-
-    if setuptools_dist is None:
-        log.warn('No setuptools distribution found')
-        return
-    # detecting if it was already faked
-    setuptools_location = setuptools_dist.location
-    log.warn('Setuptools installation detected at %s', setuptools_location)
-
-    # if --root or --preix was provided, and if
-    # setuptools is not located in them, we don't patch it
-    if not _under_prefix(setuptools_location):
-        log.warn('Not patching, --root or --prefix is installing Distribute'
-                 ' in another location')
-        return
-
-    # let's see if its an egg
-    if not setuptools_location.endswith('.egg'):
-        log.warn('Non-egg installation')
-        res = _remove_flat_installation(setuptools_location)
-        if not res:
-            return
-    else:
-        log.warn('Egg installation')
-        pkg_info = os.path.join(setuptools_location, 'EGG-INFO', 'PKG-INFO')
-        if (os.path.exists(pkg_info) and
-            _same_content(pkg_info, SETUPTOOLS_PKG_INFO)):
-            log.warn('Already patched.')
-            return
-        log.warn('Patching...')
-        # let's create a fake egg replacing setuptools one
-        res = _patch_egg_dir(setuptools_location)
-        if not res:
-            return
-    log.warn('Patched done.')
-    _relaunch()
-
-
-def _relaunch():
-    log.warn('Relaunching...')
-    # we have to relaunch the process
-    args = [sys.executable] + sys.argv
-    sys.exit(subprocess.call(args))
-
-
-def _extractall(self, path=".", members=None):
-    """Extract all members from the archive to the current working
-       directory and set owner, modification time and permissions on
-       directories afterwards. `path' specifies a different directory
-       to extract to. `members' is optional and must be a subset of the
-       list returned by getmembers().
-    """
-    import copy
-    import operator
-    from tarfile import ExtractError
-    directories = []
-
-    if members is None:
-        members = self
-
-    for tarinfo in members:
-        if tarinfo.isdir():
-            # Extract directories with a safe mode.
-            directories.append(tarinfo)
-            tarinfo = copy.copy(tarinfo)
-            tarinfo.mode = 448 # decimal for oct 0700
-        self.extract(tarinfo, path)
-
-    # Reverse sort directories.
-    if sys.version_info < (2, 4):
-        def sorter(dir1, dir2):
-            return cmp(dir1.name, dir2.name)
-        directories.sort(sorter)
-        directories.reverse()
-    else:
-        directories.sort(key=operator.attrgetter('name'), reverse=True)
-
-    # Set correct owner, mtime and filemode on directories.
-    for tarinfo in directories:
-        dirpath = os.path.join(path, tarinfo.name)
-        try:
-            self.chown(tarinfo, dirpath)
-            self.utime(tarinfo, dirpath)
-            self.chmod(tarinfo, dirpath)
-        except ExtractError:
-            e = sys.exc_info()[1]
-            if self.errorlevel > 1:
-                raise
-            else:
-                self._dbg(1, "tarfile: %s" % e)
-
-
-def main(argv, version=DEFAULT_VERSION):
-    """Install or upgrade setuptools and EasyInstall"""
-    tarball = download_setuptools()
-    _install(tarball)
-
-
-if __name__ == '__main__':
-    main(sys.argv[1:])
 name = modulegraph
 version = 0.11
 description = Python module dependency analysis tool
-long_description_file = README.txt doc/changelog.rst
+long_description_file =
+  README.txt
+  doc/changelog.rst
 classifiers =
-   Intended Audience :: Developers
-   License :: OSI Approved :: MIT License
-   Programming Language :: Python
-   Programming Language :: Python :: 2
-   Programming Language :: Python :: 3
-   Topic :: Software Development :: Libraries :: Python Modules
-   Topic :: Software Development :: Build Tools
-
+  Intended Audience :: Developers
+  License :: OSI Approved :: MIT License
+  Programming Language :: Python
+  Programming Language :: Python :: 2
+  Programming Language :: Python :: 3
+  Topic :: Software Development :: Libraries :: Python Modules
+  Topic :: Software Development :: Build Tools
 maintainer = Ronald Oussoren
 maintainer_email = ronaldoussoren@mac.com
 url = http://bitbucket.org/ronaldoussoren/modulegraph
 license = MIT
 packages = modulegraph
 platforms = any
-install_requires =
-   altgraph >= 0.11
-zip-safe = yes
+requires-dist =
+   altgraph (>= 0.11)
 console_scripts =
    modulegraph = modulegraph.__main__:main
 
 Additional functionality:
 
-* Section 'x-setup-stub':
-
-    distribute-version: minimal distribute version
-    setuptools-version: minimal setuptools version
-        (for both: script will bail out when you have a too old
-         version installed, and will install the version when
-         it isn't installed)
-    prefer-distribute = 1
-        If true install distribute when neither setuptools
-        nor distribute is present, otherwise install setuptools
-
 * Section metadata:
     requires-test:  Same as 'tests_require' option for setuptools.
 
 import re
 import platform
 from fnmatch import fnmatch
+import os
+import sys
+import time
+import tempfile
+import tarfile
+import urllib
+from distutils import log
+try:
+    from hashlib import md5
+
+except ImportError:
+    from md5 import md5
 
 if sys.version_info[0] == 2:
     from ConfigParser import RawConfigParser, NoOptionError, NoSectionError
 
 ROOTDIR = os.path.dirname(os.path.abspath(__file__))
 
+
+#
+#
+#
+# Parsing the setup.cfg and converting it to something that can be
+# used by setuptools.setup()
+#
+#
+#
+
 def eval_marker(value):
     """
     Evaluate an distutils2 environment marker.
 
         metadata['entry_points']['console_scripts'] = v.splitlines()
 
-    options = {}
-    _opt_value(cfg, options, 'x-setup-stub', 'distribute-version')
-
     if sys.version_info[:2] <= (2,6):
         try:
             metadata['tests_require'] += ", unittest2"
         except KeyError:
             metadata['tests_require'] = "unittest2"
 
-    return metadata, options
+    return metadata
 
 
-metadata, options = parse_setup_cfg()
+#
+#
+#
+# Bootstrapping setuptools/distribute, based on
+# a heavily modified version of distribute_setup.py
+#
+#
+#
 
-# XXX: Use values from 'options' to ensure
-# that we have the right version of setuptoosls/distribute
-# (if any: we don't actually need those when there are
-# no dependencies!)
+
+SETUPTOOLS_PACKAGE='distribute'
+
+
+try:
+    import subprocess
+
+    def _python_cmd(*args):
+        args = (sys.executable,) + args
+        return subprocess.call(args) == 0
+
+except ImportError:
+    def _python_cmd(*args):
+        args = (sys.executable,) + args
+        new_args = []
+        for a in args:
+            new_args.append(a.replace("'", "'\"'\"'"))
+        os.system(' '.join(new_args)) == 0
+
+
+try:
+    import json
+
+    def get_pypi_src_download(package):
+        url = 'https://pypi.python.org/pypi/%s/json'%(package,)
+        fp = urllib.urlopen(url)
+        try:
+            try:
+                data = fp.read()
+
+            finally:
+                fp.close()
+        except urllib.error:
+            raise RuntimeError("Cannot determine download link for %s"%(package,))
+
+        pkgdata = json.loads(data)
+        if 'urls' not in pkgdata:
+            raise RuntimeError("Cannot determine download link for %s"%(package,))
+
+        for info in pkgdata['urls']:
+            if info['packagetype'] == 'sdist' and info['url'].endswith('tar.gz'):
+                return (info.get('md5_digest'), info['url'])
+
+except ImportError:
+    # Python 2.5 compatibility, no JSON in stdlib but luckily JSON syntax is
+    # simular enough to Python's syntax to be able to abuse the Python compiler
+
+    import _ast as ast
+
+    def get_pypi_src_download(package):
+        url = 'https://pypi.python.org/pypi/%s/json'%(package,)
+        fp = urllib.urlopen(url)
+        try:
+            try:
+                data = fp.read()
+
+            finally:
+                fp.close()
+        except urllib.error:
+            raise RuntimeError("Cannot determine download link for %s"%(package,))
+
+
+        a = compile(data, '-', 'eval', ast.PyCF_ONLY_AST)
+        if not isinstance(a, ast.Expression):
+            raise RuntimeError("Cannot determine download link for %s"%(package,))
+
+        a = a.body
+        if not isinstance(a, ast.Dict):
+            raise RuntimeError("Cannot determine download link for %s"%(package,))
+
+        for k, v in zip(a.keys, a.values):
+            if not isinstance(k, ast.Str):
+                raise RuntimeError("Cannot determine download link for %s"%(package,))
+
+            k = k.s
+            if k == 'urls':
+                a = v
+                break
+        else:
+            raise RuntimeError("PyPI JSON for %s doesn't contain URLs section"%(package,))
+
+        if not isinstance(a, ast.List):
+            raise RuntimeError("Cannot determine download link for %s"%(package,))
+
+        for info in v.elts:
+            if not isinstance(info, ast.Dict):
+                raise RuntimeError("Cannot determine download link for %s"%(package,))
+            url = None
+            packagetype = None
+            chksum = None
+
+            for k, v in zip(info.keys, info.values):
+                if not isinstance(k, ast.Str):
+                    raise RuntimeError("Cannot determine download link for %s"%(package,))
+
+                if k.s == 'url':
+                    if not isinstance(v, ast.Str):
+                        raise RuntimeError("Cannot determine download link for %s"%(package,))
+                    url = v.s
+
+                elif k.s == 'packagetype':
+                    if not isinstance(v, ast.Str):
+                        raise RuntimeError("Cannot determine download link for %s"%(package,))
+                    packagetype = v.s
+
+                elif k.s == 'md5_digest':
+                    if not isinstance(v, ast.Str):
+                        raise RuntimeError("Cannot determine download link for %s"%(package,))
+                    chksum = v.s
+
+            if url is not None and packagetype == 'sdist' and url.endswith('.tar.gz'):
+                return (chksum, url)
+
+        raise RuntimeError("Cannot determine download link for %s"%(package,))
+
+def _build_egg(egg, tarball, to_dir):
+    # extracting the tarball
+    tmpdir = tempfile.mkdtemp()
+    log.warn('Extracting in %s', tmpdir)
+    old_wd = os.getcwd()
+    try:
+        os.chdir(tmpdir)
+        tar = tarfile.open(tarball)
+        _extractall(tar)
+        tar.close()
+
+        # going in the directory
+        subdir = os.path.join(tmpdir, os.listdir(tmpdir)[0])
+        os.chdir(subdir)
+        log.warn('Now working in %s', subdir)
+
+        # building an egg
+        log.warn('Building a Distribute egg in %s', to_dir)
+        _python_cmd('setup.py', '-q', 'bdist_egg', '--dist-dir', to_dir)
+
+    finally:
+        os.chdir(old_wd)
+    # returning the result
+    log.warn(egg)
+    if not os.path.exists(egg):
+        raise IOError('Could not build the egg.')
+
+
+def _do_download(to_dir, packagename=SETUPTOOLS_PACKAGE):
+    tarball = download_setuptools(packagename, to_dir)
+    version = tarball.split('-')[-1][:-7]
+    egg = os.path.join(to_dir, 'distribute-%s-py%d.%d.egg'
+                       % (version, sys.version_info[0], sys.version_info[1]))
+    if not os.path.exists(egg):
+        _build_egg(egg, tarball, to_dir)
+    sys.path.insert(0, egg)
+    import setuptools
+    setuptools.bootstrap_install_from = egg
+
+
+def use_setuptools():
+    # making sure we use the absolute path
+    return _do_download(os.path.abspath(os.curdir))
+
+def download_setuptools(packagename, to_dir):
+    # making sure we use the absolute path
+    to_dir = os.path.abspath(to_dir)
+    try:
+        from urllib.request import urlopen
+    except ImportError:
+        from urllib2 import urlopen
+
+    chksum, url = get_pypi_src_download(packagename)
+    tgz_name = os.path.basename(url)
+    saveto = os.path.join(to_dir, tgz_name)
+
+    src = dst = None
+    if not os.path.exists(saveto):  # Avoid repeated downloads
+        try:
+            log.warn("Downloading %s", url)
+            src = urlopen(url)
+            # Read/write all in one block, so we don't create a corrupt file
+            # if the download is interrupted.
+            data = src.read()
+
+            if chksum is not None:
+                data_sum = md5(data).hexdigest()
+                if data_sum != chksum:
+                    raise RuntimeError("Downloading %s failed: corrupt checksum"%(url,))
+
+
+            dst = open(saveto, "wb")
+            dst.write(data)
+        finally:
+            if src:
+                src.close()
+            if dst:
+                dst.close()
+    return os.path.realpath(saveto)
+
+
+
+def _extractall(self, path=".", members=None):
+    """Extract all members from the archive to the current working
+       directory and set owner, modification time and permissions on
+       directories afterwards. `path' specifies a different directory
+       to extract to. `members' is optional and must be a subset of the
+       list returned by getmembers().
+    """
+    import copy
+    import operator
+    from tarfile import ExtractError
+    directories = []
+
+    if members is None:
+        members = self
+
+    for tarinfo in members:
+        if tarinfo.isdir():
+            # Extract directories with a safe mode.
+            directories.append(tarinfo)
+            tarinfo = copy.copy(tarinfo)
+            tarinfo.mode = 448 # decimal for oct 0700
+        self.extract(tarinfo, path)
+
+    # Reverse sort directories.
+    if sys.version_info < (2, 4):
+        def sorter(dir1, dir2):
+            return cmp(dir1.name, dir2.name)
+        directories.sort(sorter)
+        directories.reverse()
+    else:
+        directories.sort(key=operator.attrgetter('name'), reverse=True)
+
+    # Set correct owner, mtime and filemode on directories.
+    for tarinfo in directories:
+        dirpath = os.path.join(path, tarinfo.name)
+        try:
+            self.chown(tarinfo, dirpath)
+            self.utime(tarinfo, dirpath)
+            self.chmod(tarinfo, dirpath)
+        except ExtractError:
+            e = sys.exc_info()[1]
+            if self.errorlevel > 1:
+                raise
+            else:
+                self._dbg(1, "tarfile: %s" % e)
+
+
+#
+#
+#
+# Definitions of custom commands
+#
+#
+#
+
 try:
     import setuptools
 
 except ImportError:
-    import distribute_setup
-    distribute_setup.use_setuptools()
+    use_setuptools()
 
 from setuptools import setup
 
         finally:
             self.remove_from_sys_path()
 
+#
+#
+#
+#  And finally run the setuptools main entry point.
+#
+#
+#
+
+metadata = parse_setup_cfg()
 
 setup(
     cmdclass=dict(