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subversion.py
from __future__ import absolute_import import logging import os import re from pip._vendor.six.moves.urllib import parse as urllib_parse from pip.index import Link from pip.utils import rmtree, display_path from pip.utils.logging import indent_log 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: (.+)') _svn_info_xml_rev_re = re.compile(r'\s*revision="(\d+)"') _svn_info_xml_url_re = re.compile(r'<url>(.*)</url>') logger = logging.getLogger(__name__) class Subversion(VersionControl): name = 'svn' dirname = '.svn' repo_name = 'checkout' schemes = ('svn', 'svn+ssh', 'svn+http', 'svn+https', 'svn+svn') def get_info(self, location): """Returns (url, revision), where both are strings""" assert not location.rstrip('/').endswith(self.dirname), \ 'Bad directory: %s' % location output = self.run_command( ['info', location], show_stdout=False, extra_environ={'LANG': 'C'}, ) match = _svn_url_re.search(output) if not match: logger.warning( 'Cannot determine URL of svn checkout %s', display_path(location), ) logger.debug('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.warning( 'Cannot determine revision of svn checkout %s', display_path(location), ) logger.debug('Output that cannot be parsed: \n%s', output) return url, None return url, match.group(1) def export(self, location): """Export the svn repository at the url to the destination location""" url, rev = self.get_url_rev() rev_options = get_rev_options(url, rev) url = self.remove_auth_from_url(url) logger.info('Exporting svn repository %s to %s', url, location) with indent_log(): 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) self.run_command( ['export'] + rev_options + [url, location], show_stdout=False) def switch(self, dest, url, rev_options): self.run_command(['switch'] + rev_options + [url, dest]) def update(self, dest, rev_options): self.run_command(['update'] + rev_options + [dest]) def obtain(self, dest): url, rev = self.get_url_rev() rev_options = get_rev_options(url, rev) url = self.remove_auth_from_url(url) if rev: rev_display = ' (to revision %s)' % rev else: rev_display = '' if self.check_destination(dest, url, rev_options, rev_display): logger.info( 'Checking out %s%s to %s', url, rev_display, display_path(dest), ) self.run_command(['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 dirurl, localrev = self._get_svn_url_rev(base) if base == location: base_url = dirurl + '/' # save the root url elif not dirurl or 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.warning( "Could not find setup.py for directory %s (tried all " "parent directories)", orig_location, ) return None return self._get_svn_url_rev(location)[0] def _get_svn_url_rev(self, location): from pip.exceptions import InstallationError entries_path = os.path.join(location, self.dirname, 'entries') if os.path.exists(entries_path): with open(entries_path) as f: data = f.read() else: # subversion >= 1.7 does not have the 'entries' file data = '' if (data.startswith('8') or data.startswith('9') or data.startswith('10')): data = list(map(str.splitlines, data.split('\n\x0c\n'))) del data[0][0] # get rid of the '8' url = data[0][3] revs = [int(d[9]) for d in data if len(d) > 9 and d[9]] + [0] elif data.startswith('<?xml'): match = _svn_xml_url_re.search(data) if not match: raise ValueError('Badly formatted data: %r' % data) url = match.group(1) # get repository URL revs = [int(m.group(1)) for m in _svn_rev_re.finditer(data)] + [0] else: try: # subversion >= 1.7 xml = self.run_command( ['info', '--xml', location], show_stdout=False, ) url = _svn_info_xml_url_re.search(xml).group(1) revs = [ int(m.group(1)) for m in _svn_info_xml_rev_re.finditer(xml) ] except InstallationError: url, revs = None, [] if revs: rev = max(revs) else: rev = 0 return url, rev def get_src_requirement(self, dist, location): repo = self.get_url(location) if repo is None: return None # FIXME: why not project name? egg_project_name = dist.egg_name().split('-', 1)[0] rev = self.get_revision(location) return 'svn+%s@%s#egg=%s' % (repo, rev, egg_project_name) def check_version(self, dest, rev_options): """Always assume the versions don't match""" return False @staticmethod def remove_auth_from_url(url): # Return a copy of url with 'username:password@' removed. # username/pass params are passed to subversion through flags # and are not recognized in the url. # parsed url purl = urllib_parse.urlsplit(url) stripped_netloc = \ purl.netloc.split('@')[-1] # stripped url url_pieces = ( purl.scheme, stripped_netloc, purl.path, purl.query, purl.fragment ) surl = urllib_parse.urlunsplit(url_pieces) return surl def get_rev_options(url, rev): if rev: rev_options = ['-r', rev] else: rev_options = [] r = urllib_parse.urlsplit(url) if hasattr(r, 'username'): # >= Python-2.5 username, password = r.username, r.password else: netloc = r[1] if '@' in netloc: auth = netloc.split('@')[0] if ':' in auth: username, password = auth.split(':', 1) else: username, password = auth, None else: username, password = None, None if username: rev_options += ['--username', username] if password: rev_options += ['--password', password] return rev_options vcs.register(Subversion)
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