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"""VCS support."""
# TODO:
# * git_write_index
# * add svn support
# * integrate properly with reports
missing = []
import os
import shutil
import sys
# python-dulwich git imports
try:
import dulwich
import dulwich.index
from dulwich.errors import NotGitRepository
except ImportError:
missing.append('git')
# subversion import
try:
import pysvn
except ImportError:
missing.append('svn')
import Bcfg2.Client.Tools
class VCS(Bcfg2.Client.Tools.Tool):
"""VCS support."""
name = 'VCS'
__handles__ = [('Path', 'vcs')]
__req__ = {'Path': ['name',
'type',
'vcstype',
'sourceurl',
'revision']}
def __init__(self, logger, cfg, setup):
Bcfg2.Client.Tools.Tool.__init__(self, logger, cfg, setup)
self.cfg = cfg
def git_write_index(self, entry):
"""Write the git index"""
pass
def Verifygit(self, entry, _):
"""Verify git repositories"""
try:
repo = dulwich.repo.Repo(entry.get('name'))
except NotGitRepository:
self.logger.info("Repository %s does not exist" %
entry.get('name'))
return False
cur_rev = repo.head()
if cur_rev != entry.get('revision'):
self.logger.info("At revision %s need to go to revision %s" %
(cur_rev, entry.get('revision')))
return False
return True
def Installgit(self, entry):
"""Checkout contents from a git repository"""
destname = entry.get('name')
if os.path.lexists(destname):
# remove incorrect contents
try:
if os.path.isdir(destname):
shutil.rmtree(destname)
else:
os.remove(destname)
except OSError:
self.logger.info('Failed to remove %s' % \
destname)
return False
destr = dulwich.repo.Repo.init(destname, mkdir=True)
cl, host_path = dulwich.client.get_transport_and_path(entry.get('sourceurl'))
remote_refs = cl.fetch(host_path,
destr,
determine_wants=destr.object_store.determine_wants_all,
progress=sys.stdout.write)
destr.refs['refs/heads/master'] = entry.get('revision')
dtree = destr[entry.get('revision')].tree
obj_store = destr.object_store
for fname, mode, sha in obj_store.iter_tree_contents(dtree):
fullpath = os.path.join(destname, fname)
try:
f = open(os.path.join(destname, fname), 'wb')
except IOError:
dir = os.path.split(fullpath)[0]
os.makedirs(dir)
f = open(os.path.join(destname, fname), 'wb')
f.write(destr[sha].data)
f.close()
os.chmod(os.path.join(destname, fname), mode)
return True
# FIXME: figure out how to write the git index properly
#iname = "%s/.git/index" % entry.get('name')
#f = open(iname, 'w+')
#entries = obj_store[sha].iteritems()
#try:
# dulwich.index.write_index(f, entries)
#finally:
# f.close()
def Verifysvn(self, entry, _):
"""Verify svn repositories"""
client = pysvn.Client()
try:
cur_rev = str(client.info(entry.get('name')).revision.number)
except:
self.logger.info("Repository %s does not exist" % entry.get('name'))
return False
if cur_rev != entry.get('revision'):
self.logger.info("At revision %s need to go to revision %s" %
(cur_rev, entry.get('revision')))
return False
return True
def Installsvn(self, entry):
"""Checkout contents from a svn repository"""
# pylint: disable=E1101
try:
client = pysvn.Client.update(entry.get('name'), recurse=True)
except pysvn.ClientError:
self.logger.error("Failed to update repository", exc_info=1)
return False
return True
# pylint: enable=E1101
def VerifyPath(self, entry, _):
vcs = entry.get('vcstype')
if vcs in missing:
self.logger.error("Missing %s python libraries. Cannot verify" %
vcs)
return False
ret = getattr(self, 'Verify%s' % vcs)
return ret(entry, _)
def InstallPath(self, entry):
vcs = entry.get('vcstype')
if vcs in missing:
self.logger.error("Missing %s python libraries. "
"Unable to install" % vcs)
return False
ret = getattr(self, 'Install%s' % vcs)
return ret(entry)
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