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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)
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