def create_hack(self, req, data, vars):
import fcntl
messages = []
created = False
have_lock = False
lockfile = open(self.lockfile, "w")
try:
rv = fcntl.flock(lockfile, fcntl.LOCK_EX | fcntl.LOCK_NB)
if rv:
raise TracError('Failed to acquire lock, error: %i' % rv)
have_lock = True
except IOError:
messages.append(
'A hack is currently being created by another user. '
'Please wait a few seconds, then click the "Create hack" '
'button again.'
)
if have_lock:
steps_done = []
try:
# Step 1: create repository paths
from os import popen
svn_path = 'file://%s' % \
self.env.config.get('trac', 'repository_dir')
svn_path = svn_path.rstrip('/')
page_name = vars['WIKINAME']
hack_path = vars['LCNAME']
paths = [ '%s/%s' % (svn_path, hack_path) ]
selected_releases = data['selected_releases']
if isinstance(selected_releases, (basestring, unicode)):
selected_releases = [ selected_releases, ]
for release in selected_releases:
if release == 'anyrelease': continue
paths.append("%s/%s/%s" % \
(svn_path, hack_path, release))
cmd = '/usr/bin/op create-hack %s ' % req.authname
cmd += '"New hack %s, created by %s" ' % \
(page_name, req.authname)
cmd += '%s 2>&1' % ' '.join(paths)
output = popen(cmd).readlines()
if output:
raise Exception(
"Failed to create Subversion paths:\n%s" % \
'\n'.join(output)
)
steps_done.append('repository')
# Step 2: Add permissions
from svnauthz.model import User, Path, PathAcl
authz_file = self.env.config.get('trac', 'authz_file')
authz = AuthzFileReader().read(authz_file)
svn_path_acl = PathAcl(User(req.authname), r=True, w=True)
authz.add_path(Path("/%s" % hack_path, acls = [svn_path_acl,]))
AuthzFileWriter().write(authz_file, authz)
steps_done.append('permissions')
# Step 3: Add component
component = TicketComponent(self.env)
component.name = page_name
component.owner = req.authname
component.insert()
steps_done.append('component')
# Step 4: Create wiki page
template_page = WikiPage(self.env, self.template)
page = WikiPage(self.env, page_name)
page.text = Template(template_page.text).substitute(vars)
page.save(req.authname, 'New hack %s, created by %s' % \
(page_name, req.authname), '0.0.0.0')
steps_done.append('wiki')
# Step 5: Tag the new wiki page
res = Resource('wiki', page_name)
tags = data['tags'].split() + selected_releases + [data['type']]
TagSystem(self.env).set_tags(req, res, tags)
steps_done.append('tags')
rv = fcntl.flock(lockfile, fcntl.LOCK_UN)
created = True
except Exception, e:
try:
if 'tags' in steps_done:
res = Resource('wiki', page_name)
tags = data['tags'].split() + selected_releases
TagSystem(self.env).delete_tags(req, res, tags)
if 'wiki' in steps_done:
WikiPage(self.env, page_name).delete()
if 'component' in steps_done:
TicketComponent(self.env, page_name).delete()
if 'permissions' in steps_done:
authz_file = self.env.config.get('trac', 'authz_file')
authz = AuthzFileReader().read(authz_file)
authz.del_path(Path("/%s" % hack_path))
AuthzFileWriter().write(authz_file, authz)
# TODO: rollback subversion path creation
rv = fcntl.flock(lockfile, fcntl.LOCK_UN)
except:
self.env.log.error("Rollback failed")
rv = fcntl.flock(lockfile, fcntl.LOCK_UN)
self.env.log.error(e, exc_info=True)
raise TracError(str(e))
if repos.has_node(path):
raise ValidationError(
'Resulting path "%s" already exists in repository.' % path
)
try:
TicketComponent(self.env, page_name)
except ResourceNotFound, e:
pass
else:
raise ValidationError(
'Resulting component "%s" already exists.' % page_name
)
authz_file = self.env.config.get('trac', 'authz_file')
authz = AuthzFileReader().read(authz_file)
authz_paths = [ p.get_path() for p in authz.get_paths() ]
for ap in authz_paths:
if ap.startswith(path):
raise ValidationError(
'Resulting path "%s" already exists in authz file.' % path
)
return hack_name
class ReleasesExist(Aspect):
"""Validate that any of the selected releases exist."""
def __init__(self, env):
self.env = env
