diff options
Diffstat (limited to 'lib/python2.7/site-packages/pip/vcs/subversion.py')
| -rw-r--r-- | lib/python2.7/site-packages/pip/vcs/subversion.py | 269 |
1 files changed, 269 insertions, 0 deletions
diff --git a/lib/python2.7/site-packages/pip/vcs/subversion.py b/lib/python2.7/site-packages/pip/vcs/subversion.py new file mode 100644 index 0000000..4b23156 --- /dev/null +++ b/lib/python2.7/site-packages/pip/vcs/subversion.py @@ -0,0 +1,269 @@ +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) |