Revert "Dammit."

This reverts commit acf8c73de7e478804b5273fbdd2e7225f7976af9.

5 files changed, 1002 insertions, 0 deletions

diff --git a/lib/python2.7/site-packages/pip-0.8.1-py2.7.egg/pip/vcs/__init__.py b/lib/python2.7/site-packages/pip-0.8.1-py2.7.egg/pip/vcs/__init__.py
new file mode 100755
index 00000000..e110440c
--- /dev/null
+++ b/lib/python2.7/site-packages/pip-0.8.1-py2.7.egg/pip/vcs/__init__.py
@@ -0,0 +1,238 @@
+"""Handles all VCS (version control) support"""
+
+import os
+import shutil
+import urlparse
+import urllib
+
+from pip.exceptions import BadCommand
+from pip.log import logger
+from pip.util import display_path, backup_dir, find_command, ask
+
+
+__all__ = ['vcs', 'get_src_requirement', 'import_vcs_support']
+
+
+class VcsSupport(object):
+    _registry = {}
+    schemes = ['ssh', 'git', 'hg', 'bzr', 'sftp']
+
+    def __init__(self):
+        # Register more schemes with urlparse for various version control systems
+        urlparse.uses_netloc.extend(self.schemes)
+        urlparse.uses_fragment.extend(self.schemes)
+        super(VcsSupport, self).__init__()
+
+    def __iter__(self):
+        return self._registry.__iter__()
+
+    @property
+    def backends(self):
+        return self._registry.values()
+
+    @property
+    def dirnames(self):
+        return [backend.dirname for backend in self.backends]
+
+    @property
+    def all_schemes(self):
+        schemes = []
+        for backend in self.backends:
+            schemes.extend(backend.schemes)
+        return schemes
+
+    def register(self, cls):
+        if not hasattr(cls, 'name'):
+            logger.warn('Cannot register VCS %s' % cls.__name__)
+            return
+        if cls.name not in self._registry:
+            self._registry[cls.name] = cls
+
+    def unregister(self, cls=None, name=None):
+        if name in self._registry:
+            del self._registry[name]
+        elif cls in self._registry.values():
+            del self._registry[cls.name]
+        else:
+            logger.warn('Cannot unregister because no class or name given')
+
+    def get_backend_name(self, location):
+        """
+        Return the name of the version control backend if found at given
+        location, e.g. vcs.get_backend_name('/path/to/vcs/checkout')
+        """
+        for vc_type in self._registry.values():
+            path = os.path.join(location, vc_type.dirname)
+            if os.path.exists(path):
+                return vc_type.name
+        return None
+
+    def get_backend(self, name):
+        name = name.lower()
+        if name in self._registry:
+            return self._registry[name]
+
+    def get_backend_from_location(self, location):
+        vc_type = self.get_backend_name(location)
+        if vc_type:
+            return self.get_backend(vc_type)
+        return None
+
+
+vcs = VcsSupport()
+
+
+class VersionControl(object):
+    name = ''
+    dirname = ''
+
+    def __init__(self, url=None, *args, **kwargs):
+        self.url = url
+        self._cmd = None
+        super(VersionControl, self).__init__(*args, **kwargs)
+
+    def _filter(self, line):
+        return (logger.INFO, line)
+
+    def _is_local_repository(self, repo):
+        """
+           posix absolute paths start with os.path.sep,
+           win32 ones ones start with drive (like c:\\folder)
+        """
+        drive, tail = os.path.splitdrive(repo)
+        return repo.startswith(os.path.sep) or drive
+
+    @property
+    def cmd(self):
+        if self._cmd is not None:
+            return self._cmd
+        command = find_command(self.name)
+        if command is None:
+            raise BadCommand('Cannot find command %r' % self.name)
+        logger.info('Found command %r at %r' % (self.name, command))
+        self._cmd = command
+        return command
+
+    def get_url_rev(self):
+        """
+        Returns the correct repository URL and revision by parsing the given
+        repository URL
+        """
+        url = self.url.split('+', 1)[1]
+        scheme, netloc, path, query, frag = urlparse.urlsplit(url)
+        rev = None
+        if '@' in path:
+            path, rev = path.rsplit('@', 1)
+        url = urlparse.urlunsplit((scheme, netloc, path, query, ''))
+        return url, rev
+
+    def get_info(self, location):
+        """
+        Returns (url, revision), where both are strings
+        """
+        assert not location.rstrip('/').endswith(self.dirname), 'Bad directory: %s' % location
+        return self.get_url(location), self.get_revision(location)
+
+    def normalize_url(self, url):
+        """
+        Normalize a URL for comparison by unquoting it and removing any trailing slash.
+        """
+        return urllib.unquote(url).rstrip('/')
+
+    def compare_urls(self, url1, url2):
+        """
+        Compare two repo URLs for identity, ignoring incidental differences.
+        """
+        return (self.normalize_url(url1) == self.normalize_url(url2))
+
+    def parse_vcs_bundle_file(self, content):
+        """
+        Takes the contents of the bundled text file that explains how to revert
+        the stripped off version control data of the given package and returns
+        the URL and revision of it.
+        """
+        raise NotImplementedError
+
+    def obtain(self, dest):
+        """
+        Called when installing or updating an editable package, takes the
+        source path of the checkout.
+        """
+        raise NotImplementedError
+
+    def switch(self, dest, url, rev_options):
+        """
+        Switch the repo at ``dest`` to point to ``URL``.
+        """
+        raise NotImplemented
+
+    def update(self, dest, rev_options):
+        """
+        Update an already-existing repo to the given ``rev_options``.
+        """
+        raise NotImplementedError
+
+    def check_destination(self, dest, url, rev_options, rev_display):
+        """
+        Prepare a location to receive a checkout/clone.
+
+        Return True if the location is ready for (and requires) a
+        checkout/clone, False otherwise.
+        """
+        checkout = True
+        prompt = False
+        if os.path.exists(dest):
+            checkout = False
+            if os.path.exists(os.path.join(dest, self.dirname)):
+                existing_url = self.get_url(dest)
+                if self.compare_urls(existing_url, url):
+                    logger.info('%s in %s exists, and has correct URL (%s)'
+                                % (self.repo_name.title(), display_path(dest), url))
+                    logger.notify('Updating %s %s%s'
+                                  % (display_path(dest), self.repo_name, rev_display))
+                    self.update(dest, rev_options)
+                else:
+                    logger.warn('%s %s in %s exists with URL %s'
+                                % (self.name, self.repo_name, display_path(dest), existing_url))
+                    prompt = ('(s)witch, (i)gnore, (w)ipe, (b)ackup ', ('s', 'i', 'w', 'b'))
+            else:
+                logger.warn('Directory %s already exists, and is not a %s %s.'
+                            % (dest, self.name, self.repo_name))
+                prompt = ('(i)gnore, (w)ipe, (b)ackup ', ('i', 'w', 'b'))
+        if prompt:
+            logger.warn('The plan is to install the %s repository %s'
+                        % (self.name, url))
+            response = ask('What to do?  %s' % prompt[0], prompt[1])
+
+            if response == 's':
+                logger.notify('Switching %s %s to %s%s'
+                              % (self.repo_name, display_path(dest), url, rev_display))
+                self.switch(dest, url, rev_options)
+            elif response == 'i':
+                # do nothing
+                pass
+            elif response == 'w':
+                logger.warn('Deleting %s' % display_path(dest))
+                shutil.rmtree(dest)
+                checkout = True
+            elif response == 'b':
+                dest_dir = backup_dir(dest)
+                logger.warn('Backing up %s to %s'
+                            % (display_path(dest), dest_dir))
+                shutil.move(dest, dest_dir)
+                checkout = True
+        return checkout
+
+    def unpack(self, location):
+        raise NotImplementedError
+
+    def get_src_requirement(self, dist, location, find_tags=False):
+        raise NotImplementedError
+
+
+def get_src_requirement(dist, location, find_tags):
+    version_control = vcs.get_backend_from_location(location)
+    if version_control:
+        return version_control().get_src_requirement(dist, location, find_tags)
+    logger.warn('cannot determine version of editable source in %s (is not SVN checkout, Git clone, Mercurial clone or Bazaar branch)' % location)
+    return dist.as_requirement()
diff --git a/lib/python2.7/site-packages/pip-0.8.1-py2.7.egg/pip/vcs/bazaar.py b/lib/python2.7/site-packages/pip-0.8.1-py2.7.egg/pip/vcs/bazaar.py
new file mode 100755
index 00000000..3b6ea8f0
--- /dev/null
+++ b/lib/python2.7/site-packages/pip-0.8.1-py2.7.egg/pip/vcs/bazaar.py
@@ -0,0 +1,138 @@
+import os
+import shutil
+import tempfile
+import re
+from pip import call_subprocess
+from pip.log import logger
+from pip.util import rmtree, display_path
+from pip.vcs import vcs, VersionControl
+from pip.download import path_to_url2
+
+
+class Bazaar(VersionControl):
+    name = 'bzr'
+    dirname = '.bzr'
+    repo_name = 'branch'
+    bundle_file = 'bzr-branch.txt'
+    schemes = ('bzr', 'bzr+http', 'bzr+https', 'bzr+ssh', 'bzr+sftp', 'bzr+ftp')
+    guide = ('# This was a Bazaar branch; to make it a branch again run:\n'
+             'bzr branch -r %(rev)s %(url)s .\n')
+
+    def parse_vcs_bundle_file(self, content):
+        url = rev = None
+        for line in content.splitlines():
+            if not line.strip() or line.strip().startswith('#'):
+                continue
+            match = re.search(r'^bzr\s*branch\s*-r\s*(\d*)', line)
+            if match:
+                rev = match.group(1).strip()
+            url = line[match.end():].strip().split(None, 1)[0]
+            if url and rev:
+                return url, rev
+        return None, None
+
+    def unpack(self, location):
+        """Get the bzr branch at the url to the destination location"""
+        url, rev = self.get_url_rev()
+        logger.notify('Checking out bzr repository %s to %s' % (url, location))
+        logger.indent += 2
+        try:
+            if os.path.exists(location):
+                os.rmdir(location)
+            call_subprocess(
+                [self.cmd, 'branch', url, location],
+                filter_stdout=self._filter, show_stdout=False)
+        finally:
+            logger.indent -= 2
+
+    def export(self, location):
+        """Export the Bazaar repository at the url to the destination location"""
+        temp_dir = tempfile.mkdtemp('-export', 'pip-')
+        self.unpack(temp_dir)
+        if os.path.exists(location):
+            # Remove the location to make sure Bazaar can export it correctly
+            rmtree(location)
+        try:
+            call_subprocess([self.cmd, 'export', location], cwd=temp_dir,
+                            filter_stdout=self._filter, show_stdout=False)
+        finally:
+            shutil.rmtree(temp_dir)
+
+    def switch(self, dest, url, rev_options):
+        call_subprocess([self.cmd, 'switch', url], cwd=dest)
+
+    def update(self, dest, rev_options):
+        call_subprocess(
+            [self.cmd, 'pull', '-q'] + rev_options, cwd=dest)
+
+    def obtain(self, dest):
+        url, rev = self.get_url_rev()
+        if rev:
+            rev_options = ['-r', rev]
+            rev_display = ' (to revision %s)' % rev
+        else:
+            rev_options = []
+            rev_display = ''
+        if self.check_destination(dest, url, rev_options, rev_display):
+            logger.notify('Checking out %s%s to %s'
+                          % (url, rev_display, display_path(dest)))
+            call_subprocess(
+                [self.cmd, 'branch', '-q'] + rev_options + [url, dest])
+
+    def get_url_rev(self):
+        # hotfix the URL scheme after removing bzr+ from bzr+ssh:// readd it
+        url, rev = super(Bazaar, self).get_url_rev()
+        if url.startswith('ssh://'):
+            url = 'bzr+' + url
+        return url, rev
+
+    def get_url(self, location):
+        urls = call_subprocess(
+            [self.cmd, 'info'], show_stdout=False, cwd=location)
+        for line in urls.splitlines():
+            line = line.strip()
+            for x in ('checkout of branch: ',
+                      'parent branch: '):
+                if line.startswith(x):
+                    repo = line.split(x)[1]
+                    if self._is_local_repository(repo):
+                        return path_to_url2(repo)
+                    return repo
+        return None
+
+    def get_revision(self, location):
+        revision = call_subprocess(
+            [self.cmd, 'revno'], show_stdout=False, cwd=location)
+        return revision.splitlines()[-1]
+
+    def get_tag_revs(self, location):
+        tags = call_subprocess(
+            [self.cmd, 'tags'], show_stdout=False, cwd=location)
+        tag_revs = []
+        for line in tags.splitlines():
+            tags_match = re.search(r'([.\w-]+)\s*(.*)$', line)
+            if tags_match:
+                tag = tags_match.group(1)
+                rev = tags_match.group(2)
+                tag_revs.append((rev.strip(), tag.strip()))
+        return dict(tag_revs)
+
+    def get_src_requirement(self, dist, location, find_tags):
+        repo = self.get_url(location)
+        if not repo.lower().startswith('bzr:'):
+            repo = 'bzr+' + repo
+        egg_project_name = dist.egg_name().split('-', 1)[0]
+        if not repo:
+            return None
+        current_rev = self.get_revision(location)
+        tag_revs = self.get_tag_revs(location)
+
+        if current_rev in tag_revs:
+            # It's a tag
+            full_egg_name = '%s-%s' % (egg_project_name, tag_revs[current_rev])
+        else:
+            full_egg_name = '%s-dev_r%s' % (dist.egg_name(), current_rev)
+        return '%s@%s#egg=%s' % (repo, current_rev, full_egg_name)
+
+
+vcs.register(Bazaar)
diff --git a/lib/python2.7/site-packages/pip-0.8.1-py2.7.egg/pip/vcs/git.py b/lib/python2.7/site-packages/pip-0.8.1-py2.7.egg/pip/vcs/git.py
new file mode 100755
index 00000000..0701e49e
--- /dev/null
+++ b/lib/python2.7/site-packages/pip-0.8.1-py2.7.egg/pip/vcs/git.py
@@ -0,0 +1,204 @@
+import os
+import shutil
+import tempfile
+import re
+from pip import call_subprocess
+from pip.util import display_path
+from pip.vcs import vcs, VersionControl
+from pip.log import logger
+from urllib import url2pathname
+from urlparse import urlsplit, urlunsplit
+
+
+class Git(VersionControl):
+    name = 'git'
+    dirname = '.git'
+    repo_name = 'clone'
+    schemes = ('git', 'git+http', 'git+ssh', 'git+git', 'git+file')
+    bundle_file = 'git-clone.txt'
+    guide = ('# This was a Git repo; to make it a repo again run:\n'
+        'git init\ngit remote add origin %(url)s -f\ngit checkout %(rev)s\n')
+
+    def __init__(self, url=None, *args, **kwargs):
+
+        # Works around an apparent Git bug
+        # (see http://article.gmane.org/gmane.comp.version-control.git/146500)
+        if url:
+            scheme, netloc, path, query, fragment = urlsplit(url)
+            if scheme.endswith('file'):
+                initial_slashes = path[:-len(path.lstrip('/'))]
+                newpath = initial_slashes + url2pathname(path).replace('\\', '/').lstrip('/')
+                url = urlunsplit((scheme, netloc, newpath, query, fragment))
+                after_plus = scheme.find('+')+1
+                url = scheme[:after_plus]+ urlunsplit((scheme[after_plus:], netloc, newpath, query, fragment))
+
+        super(Git, self).__init__(url, *args, **kwargs)
+
+    def parse_vcs_bundle_file(self, content):
+        url = rev = None
+        for line in content.splitlines():
+            if not line.strip() or line.strip().startswith('#'):
+                continue
+            url_match = re.search(r'git\s*remote\s*add\s*origin(.*)\s*-f', line)
+            if url_match:
+                url = url_match.group(1).strip()
+            rev_match = re.search(r'^git\s*checkout\s*-q\s*(.*)\s*', line)
+            if rev_match:
+                rev = rev_match.group(1).strip()
+            if url and rev:
+                return url, rev
+        return None, None
+
+    def unpack(self, location):
+        """Clone the Git repository at the url to the destination location"""
+        url, rev = self.get_url_rev()
+        logger.notify('Cloning Git repository %s to %s' % (url, location))
+        logger.indent += 2
+        try:
+            if os.path.exists(location):
+                os.rmdir(location)
+            call_subprocess(
+                [self.cmd, 'clone', url, location],
+                filter_stdout=self._filter, show_stdout=False)
+        finally:
+            logger.indent -= 2
+
+    def export(self, location):
+        """Export the Git repository at the url to the destination location"""
+        temp_dir = tempfile.mkdtemp('-export', 'pip-')
+        self.unpack(temp_dir)
+        try:
+            if not location.endswith('/'):
+                location = location + '/'
+            call_subprocess(
+                [self.cmd, 'checkout-index', '-a', '-f', '--prefix', location],
+                filter_stdout=self._filter, show_stdout=False, cwd=temp_dir)
+        finally:
+            shutil.rmtree(temp_dir)
+
+    def check_rev_options(self, rev, dest, rev_options):
+        """Check the revision options before checkout to compensate that tags
+        and branches may need origin/ as a prefix.
+        Returns the SHA1 of the branch or tag if found.
+        """
+        revisions = self.get_tag_revs(dest)
+        revisions.update(self.get_branch_revs(dest))
+        inverse_revisions = dict((v, k) for k, v in revisions.iteritems())
+        # Check if rev is a branch name
+        origin_rev = 'origin/%s' % rev
+        if origin_rev in inverse_revisions:
+            return [inverse_revisions[origin_rev]]
+        elif rev in inverse_revisions:
+            return [inverse_revisions[rev]]
+        else:
+            logger.warn("Could not find a tag or branch '%s', assuming commit." % rev)
+            return rev_options
+
+    def switch(self, dest, url, rev_options):
+        call_subprocess(
+            [self.cmd, 'config', 'remote.origin.url', url], cwd=dest)
+        call_subprocess(
+            [self.cmd, 'checkout', '-q'] + rev_options, cwd=dest)
+
+    def update(self, dest, rev_options):
+        call_subprocess([self.cmd, 'pull', '-q'], cwd=dest)
+        call_subprocess(
+            [self.cmd, 'checkout', '-q', '-f'] + rev_options, cwd=dest)
+
+    def obtain(self, dest):
+        url, rev = self.get_url_rev()
+        if rev:
+            rev_options = [rev]
+            rev_display = ' (to %s)' % rev
+        else:
+            rev_options = ['master']
+            rev_display = ''
+        if self.check_destination(dest, url, rev_options, rev_display):
+            logger.notify('Cloning %s%s to %s' % (url, rev_display, display_path(dest)))
+            call_subprocess([self.cmd, 'clone', '-q', url, dest])
+            if rev:
+                rev_options = self.check_rev_options(rev, dest, rev_options)
+                # Only do a checkout if rev_options differs from HEAD
+                if not self.get_revision(dest).startswith(rev_options[0]):
+                    call_subprocess([self.cmd, 'checkout', '-q'] + rev_options, cwd=dest)
+
+    def get_url(self, location):
+        url = call_subprocess(
+            [self.cmd, 'config', 'remote.origin.url'],
+            show_stdout=False, cwd=location)
+        return url.strip()
+
+    def get_revision(self, location):
+        current_rev = call_subprocess(
+            [self.cmd, 'rev-parse', 'HEAD'], show_stdout=False, cwd=location)
+        return current_rev.strip()
+
+    def get_tag_revs(self, location):
+        tags = call_subprocess(
+            [self.cmd, 'tag', '-l'],
+            show_stdout=False, raise_on_returncode=False, cwd=location)
+        tag_revs = []
+        for line in tags.splitlines():
+            tag = line.strip()
+            rev = call_subprocess(
+                [self.cmd, 'rev-parse', tag], show_stdout=False, cwd=location)
+            tag_revs.append((rev.strip(), tag))
+        tag_revs = dict(tag_revs)
+        return tag_revs
+
+    def get_branch_revs(self, location):
+        branches = call_subprocess(
+            [self.cmd, 'branch', '-r'], show_stdout=False, cwd=location)
+        branch_revs = []
+        for line in branches.splitlines():
+            line = line.split('->')[0].strip()
+            branch = "".join([b for b in line.split() if b != '*'])
+            rev = call_subprocess(
+                [self.cmd, 'rev-parse', branch], show_stdout=False, cwd=location)
+            branch_revs.append((rev.strip(), branch))
+        branch_revs = dict(branch_revs)
+        return branch_revs
+
+    def get_src_requirement(self, dist, location, find_tags):
+        repo = self.get_url(location)
+        if not repo.lower().startswith('git:'):
+            repo = 'git+' + repo
+        egg_project_name = dist.egg_name().split('-', 1)[0]
+        if not repo:
+            return None
+        current_rev = self.get_revision(location)
+        tag_revs = self.get_tag_revs(location)
+        branch_revs = self.get_branch_revs(location)
+
+        if current_rev in tag_revs:
+            # It's a tag
+            full_egg_name = '%s-%s' % (egg_project_name, tag_revs[current_rev])
+        elif (current_rev in branch_revs and
+              branch_revs[current_rev] != 'origin/master'):
+            # It's the head of a branch
+            full_egg_name = '%s-%s' % (dist.egg_name(),
+                                       branch_revs[current_rev].replace('origin/', ''))
+        else:
+            full_egg_name = '%s-dev' % dist.egg_name()
+
+        return '%s@%s#egg=%s' % (repo, current_rev, full_egg_name)
+
+    def get_url_rev(self):
+        """
+        Prefixes stub URLs like 'user@hostname:user/repo.git' with 'ssh://'.
+        That's required because although they use SSH they sometimes doesn't
+        work with a ssh:// scheme (e.g. Github). But we need a scheme for
+        parsing. Hence we remove it again afterwards and return it as a stub.
+        """
+        if not '://' in self.url:
+            assert not 'file:' in self.url
+            self.url = self.url.replace('git+', 'git+ssh://')
+            url, rev = super(Git, self).get_url_rev()
+            url = url.replace('ssh://', '')
+        else:
+            url, rev = super(Git, self).get_url_rev()
+
+        return url, rev
+
+
+vcs.register(Git)
diff --git a/lib/python2.7/site-packages/pip-0.8.1-py2.7.egg/pip/vcs/mercurial.py b/lib/python2.7/site-packages/pip-0.8.1-py2.7.egg/pip/vcs/mercurial.py
new file mode 100755
index 00000000..70c8c833
--- /dev/null
+++ b/lib/python2.7/site-packages/pip-0.8.1-py2.7.egg/pip/vcs/mercurial.py
@@ -0,0 +1,162 @@
+import os
+import shutil
+import tempfile
+import re
+import ConfigParser
+from pip import call_subprocess
+from pip.util import display_path
+from pip.log import logger
+from pip.vcs import vcs, VersionControl
+from pip.download import path_to_url2
+
+
+class Mercurial(VersionControl):
+    name = 'hg'
+    dirname = '.hg'
+    repo_name = 'clone'
+    schemes = ('hg', 'hg+http', 'hg+https', 'hg+ssh', 'hg+static-http')
+    bundle_file = 'hg-clone.txt'
+    guide = ('# This was a Mercurial repo; to make it a repo again run:\n'
+            'hg init\nhg pull %(url)s\nhg update -r %(rev)s\n')
+
+    def parse_vcs_bundle_file(self, content):
+        url = rev = None
+        for line in content.splitlines():
+            if not line.strip() or line.strip().startswith('#'):
+                continue
+            url_match = re.search(r'hg\s*pull\s*(.*)\s*', line)
+            if url_match:
+                url = url_match.group(1).strip()
+            rev_match = re.search(r'^hg\s*update\s*-r\s*(.*)\s*', line)
+            if rev_match:
+                rev = rev_match.group(1).strip()
+            if url and rev:
+                return url, rev
+        return None, None
+
+    def unpack(self, location):
+        """Clone the Hg repository at the url to the destination location"""
+        url, rev = self.get_url_rev()
+        logger.notify('Cloning Mercurial repository %s to %s' % (url, location))
+        logger.indent += 2
+        try:
+            if os.path.exists(location):
+                os.rmdir(location)
+            call_subprocess(
+                [self.cmd, 'clone', url, location],
+                filter_stdout=self._filter, show_stdout=False)
+        finally:
+            logger.indent -= 2
+
+    def export(self, location):
+        """Export the Hg repository at the url to the destination location"""
+        temp_dir = tempfile.mkdtemp('-export', 'pip-')
+        self.unpack(temp_dir)
+        try:
+            call_subprocess(
+                [self.cmd, 'archive', location],
+                filter_stdout=self._filter, show_stdout=False, cwd=temp_dir)
+        finally:
+            shutil.rmtree(temp_dir)
+
+    def switch(self, dest, url, rev_options):
+        repo_config = os.path.join(dest, self.dirname, 'hgrc')
+        config = ConfigParser.SafeConfigParser()
+        try:
+            config.read(repo_config)
+            config.set('paths', 'default', url)
+            config_file = open(repo_config, 'w')
+            config.write(config_file)
+            config_file.close()
+        except (OSError, ConfigParser.NoSectionError), e:
+            logger.warn(
+                'Could not switch Mercurial repository to %s: %s'
+                % (url, e))
+        else:
+            call_subprocess([self.cmd, 'update', '-q'] + rev_options, cwd=dest)
+
+    def update(self, dest, rev_options):
+        call_subprocess([self.cmd, 'pull', '-q'], cwd=dest)
+        call_subprocess(
+            [self.cmd, 'update', '-q'] + rev_options, cwd=dest)
+
+    def obtain(self, dest):
+        url, rev = self.get_url_rev()
+        if rev:
+            rev_options = [rev]
+            rev_display = ' (to revision %s)' % rev
+        else:
+            rev_options = []
+            rev_display = ''
+        if self.check_destination(dest, url, rev_options, rev_display):
+            logger.notify('Cloning hg %s%s to %s'
+                          % (url, rev_display, display_path(dest)))
+            call_subprocess([self.cmd, 'clone', '--noupdate', '-q', url, dest])
+            call_subprocess([self.cmd, 'update', '-q'] + rev_options, cwd=dest)
+
+    def get_url(self, location):
+        url = call_subprocess(
+            [self.cmd, 'showconfig', 'paths.default'],
+            show_stdout=False, cwd=location).strip()
+        if self._is_local_repository(url):
+            url = path_to_url2(url)
+        return url.strip()
+
+    def get_tag_revs(self, location):
+        tags = call_subprocess(
+            [self.cmd, 'tags'], show_stdout=False, cwd=location)
+        tag_revs = []
+        for line in tags.splitlines():
+            tags_match = re.search(r'([\w\d\.-]+)\s*([\d]+):.*$', line)
+            if tags_match:
+                tag = tags_match.group(1)
+                rev = tags_match.group(2)
+                tag_revs.append((rev.strip(), tag.strip()))
+        return dict(tag_revs)
+
+    def get_branch_revs(self, location):
+        branches = call_subprocess(
+            [self.cmd, 'branches'], show_stdout=False, cwd=location)
+        branch_revs = []
+        for line in branches.splitlines():
+            branches_match = re.search(r'([\w\d\.-]+)\s*([\d]+):.*$', line)
+            if branches_match:
+                branch = branches_match.group(1)
+                rev = branches_match.group(2)
+                branch_revs.append((rev.strip(), branch.strip()))
+        return dict(branch_revs)
+
+    def get_revision(self, location):
+        current_revision = call_subprocess(
+            [self.cmd, 'parents', '--template={rev}'],
+            show_stdout=False, cwd=location).strip()
+        return current_revision
+
+    def get_revision_hash(self, location):
+        current_rev_hash = call_subprocess(
+            [self.cmd, 'parents', '--template={node}'],
+            show_stdout=False, cwd=location).strip()
+        return current_rev_hash
+
+    def get_src_requirement(self, dist, location, find_tags):
+        repo = self.get_url(location)
+        if not repo.lower().startswith('hg:'):
+            repo = 'hg+' + repo
+        egg_project_name = dist.egg_name().split('-', 1)[0]
+        if not repo:
+            return None
+        current_rev = self.get_revision(location)
+        current_rev_hash = self.get_revision_hash(location)
+        tag_revs = self.get_tag_revs(location)
+        branch_revs = self.get_branch_revs(location)
+        if current_rev in tag_revs:
+            # It's a tag
+            full_egg_name = '%s-%s' % (egg_project_name, tag_revs[current_rev])
+        elif current_rev in branch_revs:
+            # It's the tip of a branch
+            full_egg_name = '%s-%s' % (dist.egg_name(), branch_revs[current_rev])
+        else:
+            full_egg_name = '%s-dev' % dist.egg_name()
+        return '%s@%s#egg=%s' % (repo, current_rev_hash, full_egg_name)
+
+vcs.register(Mercurial)
diff --git a/lib/python2.7/site-packages/pip-0.8.1-py2.7.egg/pip/vcs/subversion.py b/lib/python2.7/site-packages/pip-0.8.1-py2.7.egg/pip/vcs/subversion.py
new file mode 100755
index 00000000..85715d97
--- /dev/null
+++ b/lib/python2.7/site-packages/pip-0.8.1-py2.7.egg/pip/vcs/subversion.py
@@ -0,0 +1,260 @@
+import os
+import re
+from pip import call_subprocess
+from pip.index import Link
+from pip.util import rmtree, display_path
+from pip.log import logger
+from pip.vcs import vcs, VersionControl
+
+_svn_xml_url_re = re.compile('url="([^"]+)"')
+_svn_rev_re = re.compile('committed-rev="(\d+)"')
+_svn_url_re = re.compile(r'URL: (.+)')
+_svn_revision_re = re.compile(r'Revision: (.+)')
+
+
+class Subversion(VersionControl):
+    name = 'svn'
+    dirname = '.svn'
+    repo_name = 'checkout'
+    schemes = ('svn', 'svn+ssh', 'svn+http', 'svn+https')
+    bundle_file = 'svn-checkout.txt'
+    guide = ('# This was an svn checkout; to make it a checkout again run:\n'
+            'svn checkout --force -r %(rev)s %(url)s .\n')
+
+    def get_info(self, location):
+        """Returns (url, revision), where both are strings"""
+        assert not location.rstrip('/').endswith(self.dirname), 'Bad directory: %s' % location
+        output = call_subprocess(
+            [self.cmd, 'info', location], show_stdout=False, extra_environ={'LANG': 'C'})
+        match = _svn_url_re.search(output)
+        if not match:
+            logger.warn('Cannot determine URL of svn checkout %s' % display_path(location))
+            logger.info('Output that cannot be parsed: \n%s' % output)
+            return None, None
+        url = match.group(1).strip()
+        match = _svn_revision_re.search(output)
+        if not match:
+            logger.warn('Cannot determine revision of svn checkout %s' % display_path(location))
+            logger.info('Output that cannot be parsed: \n%s' % output)
+            return url, None
+        return url, match.group(1)
+
+    def parse_vcs_bundle_file(self, content):
+        for line in content.splitlines():
+            if not line.strip() or line.strip().startswith('#'):
+                continue
+            match = re.search(r'^-r\s*([^ ])?', line)
+            if not match:
+                return None, None
+            rev = match.group(1)
+            rest = line[match.end():].strip().split(None, 1)[0]
+            return rest, rev
+        return None, None
+
+    def unpack(self, location):
+        """Check out the svn repository at the url to the destination location"""
+        url, rev = self.get_url_rev()
+        logger.notify('Checking out svn repository %s to %s' % (url, location))
+        logger.indent += 2
+        try:
+            if os.path.exists(location):
+                # Subversion doesn't like to check out over an existing directory
+                # --force fixes this, but was only added in svn 1.5
+                rmtree(location)
+            call_subprocess(
+                [self.cmd, 'checkout', url, location],
+                filter_stdout=self._filter, show_stdout=False)
+        finally:
+            logger.indent -= 2
+
+    def export(self, location):
+        """Export the svn repository at the url to the destination location"""
+        url, rev = self.get_url_rev()
+        logger.notify('Exporting svn repository %s to %s' % (url, location))
+        logger.indent += 2
+        try:
+            if os.path.exists(location):
+                # Subversion doesn't like to check out over an existing directory
+                # --force fixes this, but was only added in svn 1.5
+                rmtree(location)
+            call_subprocess(
+                [self.cmd, 'export', url, location],
+                filter_stdout=self._filter, show_stdout=False)
+        finally:
+            logger.indent -= 2
+
+    def switch(self, dest, url, rev_options):
+        call_subprocess(
+            [self.cmd, 'switch'] + rev_options + [url, dest])
+
+    def update(self, dest, rev_options):
+        call_subprocess(
+            [self.cmd, 'update'] + rev_options + [dest])
+
+    def obtain(self, dest):
+        url, rev = self.get_url_rev()
+        if rev:
+            rev_options = ['-r', rev]
+            rev_display = ' (to revision %s)' % rev
+        else:
+            rev_options = []
+            rev_display = ''
+        if self.check_destination(dest, url, rev_options, rev_display):
+            logger.notify('Checking out %s%s to %s'
+                          % (url, rev_display, display_path(dest)))
+            call_subprocess(
+                [self.cmd, 'checkout', '-q'] + rev_options + [url, dest])
+
+    def get_location(self, dist, dependency_links):
+        for url in dependency_links:
+            egg_fragment = Link(url).egg_fragment
+            if not egg_fragment:
+                continue
+            if '-' in egg_fragment:
+                ## FIXME: will this work when a package has - in the name?
+                key = '-'.join(egg_fragment.split('-')[:-1]).lower()
+            else:
+                key = egg_fragment
+            if key == dist.key:
+                return url.split('#', 1)[0]
+        return None
+
+    def get_revision(self, location):
+        """
+        Return the maximum revision for all files under a given location
+        """
+        # Note: taken from setuptools.command.egg_info
+        revision = 0
+
+        for base, dirs, files in os.walk(location):
+            if self.dirname not in dirs:
+                dirs[:] = []
+                continue    # no sense walking uncontrolled subdirs
+            dirs.remove(self.dirname)
+            entries_fn = os.path.join(base, self.dirname, 'entries')
+            if not os.path.exists(entries_fn):
+                ## FIXME: should we warn?
+                continue
+            f = open(entries_fn)
+            data = f.read()
+            f.close()
+
+            if data.startswith('8') or data.startswith('9') or data.startswith('10'):
+                data = map(str.splitlines, data.split('\n\x0c\n'))
+                del data[0][0]  # get rid of the '8'
+                dirurl = data[0][3]
+                revs = [int(d[9]) for d in data if len(d)>9 and d[9]]+[0]
+                if revs:
+                    localrev = max(revs)
+                else:
+                    localrev = 0
+            elif data.startswith('<?xml'):
+                dirurl = _svn_xml_url_re.search(data).group(1)    # get repository URL
+                revs = [int(m.group(1)) for m in _svn_rev_re.finditer(data)]+[0]
+                if revs:
+                    localrev = max(revs)
+                else:
+                    localrev = 0
+            else:
+                logger.warn("Unrecognized .svn/entries format; skipping %s", base)
+                dirs[:] = []
+                continue
+            if base == location:
+                base_url = dirurl+'/'   # save the root url
+            elif not dirurl.startswith(base_url):
+                dirs[:] = []
+                continue    # not part of the same svn tree, skip it
+            revision = max(revision, localrev)
+        return revision
+
+    def get_url_rev(self):
+        # hotfix the URL scheme after removing svn+ from svn+ssh:// readd it
+        url, rev = super(Subversion, self).get_url_rev()
+        if url.startswith('ssh://'):
+            url = 'svn+' + url
+        return url, rev
+
+    def get_url(self, location):
+        # In cases where the source is in a subdirectory, not alongside setup.py
+        # we have to look up in the location until we find a real setup.py
+        orig_location = location
+        while not os.path.exists(os.path.join(location, 'setup.py')):
+            last_location = location
+            location = os.path.dirname(location)
+            if location == last_location:
+                # We've traversed up to the root of the filesystem without finding setup.py
+                logger.warn("Could not find setup.py for directory %s (tried all parent directories)"
+                            % orig_location)
+                return None
+        f = open(os.path.join(location, self.dirname, 'entries'))
+        data = f.read()
+        f.close()
+        if data.startswith('8') or data.startswith('9') or data.startswith('10'):
+            data = map(str.splitlines, data.split('\n\x0c\n'))
+            del data[0][0]  # get rid of the '8'
+            return data[0][3]
+        elif data.startswith('<?xml'):
+            match = _svn_xml_url_re.search(data)
+            if not match:
+                raise ValueError('Badly formatted data: %r' % data)
+            return match.group(1)    # get repository URL
+        else:
+            logger.warn("Unrecognized .svn/entries format in %s" % location)
+            # Or raise exception?
+            return None
+
+    def get_tag_revs(self, svn_tag_url):
+        stdout = call_subprocess(
+            [self.cmd, 'ls', '-v', svn_tag_url], show_stdout=False)
+        results = []
+        for line in stdout.splitlines():
+            parts = line.split()
+            rev = int(parts[0])
+            tag = parts[-1].strip('/')
+            results.append((tag, rev))
+        return results
+
+    def find_tag_match(self, rev, tag_revs):
+        best_match_rev = None
+        best_tag = None
+        for tag, tag_rev in tag_revs:
+            if (tag_rev > rev and
+                (best_match_rev is None or best_match_rev > tag_rev)):
+                # FIXME: Is best_match > tag_rev really possible?
+                # or is it a sign something is wacky?
+                best_match_rev = tag_rev
+                best_tag = tag
+        return best_tag
+
+    def get_src_requirement(self, dist, location, find_tags=False):
+        repo = self.get_url(location)
+        if repo is None:
+            return None
+        parts = repo.split('/')
+        ## FIXME: why not project name?
+        egg_project_name = dist.egg_name().split('-', 1)[0]
+        rev = self.get_revision(location)
+        if parts[-2] in ('tags', 'tag'):
+            # It's a tag, perfect!
+            full_egg_name = '%s-%s' % (egg_project_name, parts[-1])
+        elif parts[-2] in ('branches', 'branch'):
+            # It's a branch :(
+            full_egg_name = '%s-%s-r%s' % (dist.egg_name(), parts[-1], rev)
+        elif parts[-1] == 'trunk':
+            # Trunk :-/
+            full_egg_name = '%s-dev_r%s' % (dist.egg_name(), rev)
+            if find_tags:
+                tag_url = '/'.join(parts[:-1]) + '/tags'
+                tag_revs = self.get_tag_revs(tag_url)
+                match = self.find_tag_match(rev, tag_revs)
+                if match:
+                    logger.notify('trunk checkout %s seems to be equivalent to tag %s' % match)
+                    repo = '%s/%s' % (tag_url, match)
+                    full_egg_name = '%s-%s' % (egg_project_name, match)
+        else:
+            # Don't know what it is
+            logger.warn('svn URL does not fit normal structure (tags/branches/trunk): %s' % repo)
+            full_egg_name = '%s-dev_r%s' % (egg_project_name, rev)
+        return 'svn+%s@%s#egg=%s' % (repo, rev, full_egg_name)
+
+vcs.register(Subversion)