Changeset - 4c71667160e5
[Not reviewed]
beta
0 4 0
Marcin Kuzminski - 13 years ago 2012-08-15 00:22:53
marcin@python-works.com
use os.environ as a fallback for getting special info from hooks, this will allow
calling RhodeCode hooks from outside the system eg. via SSH
- also verify repo if it's a correct VCS throw 404 error otherwise
4 files changed with 49 insertions and 15 deletions:
0 comments (0 inline, 0 general)
rhodecode/lib/hooks.py
Show inline comments
 
# -*- coding: utf-8 -*-
 
"""
 
    rhodecode.lib.hooks
 
    ~~~~~~~~~~~~~~~~~~~
 

	
 
    Hooks runned by rhodecode
 

	
 
    :created_on: Aug 6, 2010
 
    :author: marcink
 
    :copyright: (C) 2010-2012 Marcin Kuzminski <marcin@python-works.com>
 
    :license: GPLv3, see COPYING for more details.
 
"""
 
# This program is free software: you can redistribute it and/or modify
 
# it under the terms of the GNU General Public License as published by
 
# the Free Software Foundation, either version 3 of the License, or
 
# (at your option) any later version.
 
#
 
# This program is distributed in the hope that it will be useful,
 
# but WITHOUT ANY WARRANTY; without even the implied warranty of
 
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 
# GNU General Public License for more details.
 
#
 
# You should have received a copy of the GNU General Public License
 
# along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
import os
 
import sys
 
import binascii
 
from inspect import isfunction
 

	
 
from mercurial.scmutil import revrange
 
from mercurial.node import nullrev
 

	
 
from rhodecode.lib import helpers as h
 
from rhodecode.lib.utils import action_logger
 
from rhodecode.lib.vcs.backends.base import EmptyChangeset
 
from rhodecode.lib.compat import json
 

	
 

	
 
def _get_scm_size(alias, root_path):
 

	
 
    if not alias.startswith('.'):
 
        alias += '.'
 

	
 
    size_scm, size_root = 0, 0
 
    for path, dirs, files in os.walk(root_path):
 
        if path.find(alias) != -1:
 
            for f in files:
 
                try:
 
                    size_scm += os.path.getsize(os.path.join(path, f))
 
                except OSError:
 
                    pass
 
        else:
 
            for f in files:
 
                try:
 
                    size_root += os.path.getsize(os.path.join(path, f))
 
                except OSError:
 
                    pass
 

	
 
    size_scm_f = h.format_byte_size(size_scm)
 
    size_root_f = h.format_byte_size(size_root)
 
    size_total_f = h.format_byte_size(size_root + size_scm)
 

	
 
    return size_scm_f, size_root_f, size_total_f
 

	
 

	
 
def repo_size(ui, repo, hooktype=None, **kwargs):
 
    """
 
    Presents size of repository after push
 

	
 
    :param ui:
 
    :param repo:
 
    :param hooktype:
 
    """
 

	
 
    size_hg_f, size_root_f, size_total_f = _get_scm_size('.hg', repo.root)
 

	
 
    last_cs = repo[len(repo) - 1]
 

	
 
    msg = ('Repository size .hg:%s repo:%s total:%s\n'
 
           'Last revision is now r%s:%s\n') % (
 
        size_hg_f, size_root_f, size_total_f, last_cs.rev(), last_cs.hex()[:12]
 
    )
 

	
 
    sys.stdout.write(msg)
 

	
 

	
 
def log_pull_action(ui, repo, **kwargs):
 
    """
 
    Logs user last pull action
 

	
 
    :param ui:
 
    :param repo:
 
    """
 
    try:
 
        rc_extras = json.loads(os.environ.get('RC_SCM_DATA', "{}"))
 
    except:
 
        rc_extras = {}
 
    extras = dict(repo.ui.configitems('rhodecode_extras'))
 
    username = extras['username']
 
    repository = extras['repository']
 
    scm = extras['scm']
 
    if 'username' in extras:
 
        username = extras['username']
 
        repository = extras['repository']
 
        scm = extras['scm']
 
    elif 'username' in rc_extras:
 
        username = rc_extras['username']
 
        repository = rc_extras['repository']
 
        scm = rc_extras['scm']
 
    else:
 
        raise Exception('Missing data in repo.ui and os.environ')
 

	
 
    action = 'pull'
 

	
 
    action_logger(username, action, repository, extras['ip'], commit=True)
 
    # extension hook call
 
    from rhodecode import EXTENSIONS
 
    callback = getattr(EXTENSIONS, 'PULL_HOOK', None)
 

	
 
    if isfunction(callback):
 
        kw = {}
 
        kw.update(extras)
 
        callback(**kw)
 
    return 0
 

	
 

	
 
def log_push_action(ui, repo, **kwargs):
 
    """
 
    Maps user last push action to new changeset id, from mercurial
 

	
 
    :param ui:
 
    :param repo: repo object containing the `ui` object
 
    """
 

	
 
    try:
 
        rc_extras = json.loads(os.environ.get('RC_SCM_DATA', "{}"))
 
    except:
 
        rc_extras = {}
 

	
 
    extras = dict(repo.ui.configitems('rhodecode_extras'))
 
    username = extras['username']
 
    repository = extras['repository']
 
    action = extras['action'] + ':%s'
 
    scm = extras['scm']
 
    if 'username' in extras:
 
        username = extras['username']
 
        repository = extras['repository']
 
        scm = extras['scm']
 
    elif 'username' in rc_extras:
 
        username = rc_extras['username']
 
        repository = rc_extras['repository']
 
        scm = rc_extras['scm']
 
    else:
 
        raise Exception('Missing data in repo.ui and os.environ')
 

	
 
    action = 'push' + ':%s'
 

	
 
    if scm == 'hg':
 
        node = kwargs['node']
 

	
 
        def get_revs(repo, rev_opt):
 
            if rev_opt:
 
                revs = revrange(repo, rev_opt)
 

	
 
                if len(revs) == 0:
 
                    return (nullrev, nullrev)
 
                return (max(revs), min(revs))
 
            else:
 
                return (len(repo) - 1, 0)
 

	
 
        stop, start = get_revs(repo, [node + ':'])
 
        h = binascii.hexlify
 
        revs = [h(repo[r].node()) for r in xrange(start, stop + 1)]
 
    elif scm == 'git':
 
        revs = kwargs.get('_git_revs', [])
 
        if '_git_revs' in kwargs:
 
            kwargs.pop('_git_revs')
 

	
 
    action = action % ','.join(revs)
 

	
 
    action_logger(username, action, repository, extras['ip'], commit=True)
 

	
 
    # extension hook call
 
    from rhodecode import EXTENSIONS
 
    callback = getattr(EXTENSIONS, 'PUSH_HOOK', None)
 
    if isfunction(callback):
 
        kw = {'pushed_revs': revs}
 
        kw.update(extras)
 
        callback(**kw)
 
    return 0
 

	
 

	
 
def log_create_repository(repository_dict, created_by, **kwargs):
 
    """
 
    Post create repository Hook. This is a dummy function for admins to re-use
 
    if needed. It's taken from rhodecode-extensions module and executed
 
    if present
 

	
 
    :param repository: dict dump of repository object
 
    :param created_by: username who created repository
 
    :param created_date: date of creation
 

	
 
    available keys of repository_dict:
 

	
rhodecode/lib/middleware/simplegit.py
Show inline comments
 
@@ -36,206 +36,208 @@ from dulwich.web import LimitedInputFilt
 
class SimpleGitUploadPackHandler(dulserver.UploadPackHandler):
 

	
 
    def handle(self):
 
        write = lambda x: self.proto.write_sideband(1, x)
 

	
 
        graph_walker = dulserver.ProtocolGraphWalker(self,
 
                                                     self.repo.object_store,
 
                                                     self.repo.get_peeled)
 
        objects_iter = self.repo.fetch_objects(
 
          graph_walker.determine_wants, graph_walker, self.progress,
 
          get_tagged=self.get_tagged)
 

	
 
        # Did the process short-circuit (e.g. in a stateless RPC call)? Note
 
        # that the client still expects a 0-object pack in most cases.
 
        if objects_iter is None:
 
            return
 

	
 
        self.progress("counting objects: %d, done.\n" % len(objects_iter))
 
        dulserver.write_pack_objects(dulserver.ProtocolFile(None, write),
 
                                     objects_iter)
 
        messages = []
 
        messages.append('thank you for using rhodecode')
 

	
 
        for msg in messages:
 
            self.progress(msg + "\n")
 
        # we are done
 
        self.proto.write("0000")
 

	
 

	
 
dulserver.DEFAULT_HANDLERS = {
 
  #git-ls-remote, git-clone, git-fetch and git-pull
 
  'git-upload-pack': SimpleGitUploadPackHandler,
 
  #git-push
 
  'git-receive-pack': dulserver.ReceivePackHandler,
 
}
 

	
 
# not used for now until dulwich get's fixed
 
#from dulwich.repo import Repo
 
#from dulwich.web import make_wsgi_chain
 

	
 
from paste.httpheaders import REMOTE_USER, AUTH_TYPE
 
from webob.exc import HTTPNotFound, HTTPForbidden, HTTPInternalServerError, \
 
    HTTPBadRequest, HTTPNotAcceptable
 

	
 
from rhodecode.lib.utils2 import safe_str
 
from rhodecode.lib.base import BaseVCSController
 
from rhodecode.lib.auth import get_container_username
 
from rhodecode.lib.utils import is_valid_repo, make_ui
 
from rhodecode.lib.compat import json
 
from rhodecode.model.db import User, RhodeCodeUi
 

	
 
log = logging.getLogger(__name__)
 

	
 

	
 
GIT_PROTO_PAT = re.compile(r'^/(.+)/(info/refs|git-upload-pack|git-receive-pack)')
 

	
 

	
 
def is_git(environ):
 
    path_info = environ['PATH_INFO']
 
    isgit_path = GIT_PROTO_PAT.match(path_info)
 
    log.debug('pathinfo: %s detected as GIT %s' % (
 
        path_info, isgit_path != None)
 
    )
 
    return isgit_path
 

	
 

	
 
class SimpleGit(BaseVCSController):
 

	
 
    def _handle_request(self, environ, start_response):
 

	
 
        if not is_git(environ):
 
            return self.application(environ, start_response)
 
        if not self._check_ssl(environ, start_response):
 
            return HTTPNotAcceptable('SSL REQUIRED !')(environ, start_response)
 
        ipaddr = self._get_ip_addr(environ)
 
        username = None
 
        self._git_first_op = False
 
        # skip passing error to error controller
 
        environ['pylons.status_code_redirect'] = True
 

	
 
        #======================================================================
 
        # EXTRACT REPOSITORY NAME FROM ENV
 
        #======================================================================
 
        try:
 
            repo_name = self.__get_repository(environ)
 
            log.debug('Extracted repo name is %s' % repo_name)
 
        except:
 
            return HTTPInternalServerError()(environ, start_response)
 

	
 
        # quick check if that dir exists...
 
        if is_valid_repo(repo_name, self.basepath) is False:
 
        if is_valid_repo(repo_name, self.basepath, 'git') is False:
 
            return HTTPNotFound()(environ, start_response)
 

	
 
        #======================================================================
 
        # GET ACTION PULL or PUSH
 
        #======================================================================
 
        action = self.__get_action(environ)
 

	
 
        #======================================================================
 
        # CHECK ANONYMOUS PERMISSION
 
        #======================================================================
 
        if action in ['pull', 'push']:
 
            anonymous_user = self.__get_user('default')
 
            username = anonymous_user.username
 
            anonymous_perm = self._check_permission(action, anonymous_user,
 
                                                    repo_name)
 

	
 
            if anonymous_perm is not True or anonymous_user.active is False:
 
                if anonymous_perm is not True:
 
                    log.debug('Not enough credentials to access this '
 
                              'repository as anonymous user')
 
                if anonymous_user.active is False:
 
                    log.debug('Anonymous access is disabled, running '
 
                              'authentication')
 
                #==============================================================
 
                # DEFAULT PERM FAILED OR ANONYMOUS ACCESS IS DISABLED SO WE
 
                # NEED TO AUTHENTICATE AND ASK FOR AUTH USER PERMISSIONS
 
                #==============================================================
 

	
 
                # Attempting to retrieve username from the container
 
                username = get_container_username(environ, self.config)
 

	
 
                # If not authenticated by the container, running basic auth
 
                if not username:
 
                    self.authenticate.realm = \
 
                        safe_str(self.config['rhodecode_realm'])
 
                    result = self.authenticate(environ)
 
                    if isinstance(result, str):
 
                        AUTH_TYPE.update(environ, 'basic')
 
                        REMOTE_USER.update(environ, result)
 
                        username = result
 
                    else:
 
                        return result.wsgi_application(environ, start_response)
 

	
 
                #==============================================================
 
                # CHECK PERMISSIONS FOR THIS REQUEST USING GIVEN USERNAME
 
                #==============================================================
 
                try:
 
                    user = self.__get_user(username)
 
                    if user is None or not user.active:
 
                        return HTTPForbidden()(environ, start_response)
 
                    username = user.username
 
                except:
 
                    log.error(traceback.format_exc())
 
                    return HTTPInternalServerError()(environ, start_response)
 

	
 
                #check permissions for this repository
 
                perm = self._check_permission(action, user, repo_name)
 
                if perm is not True:
 
                    return HTTPForbidden()(environ, start_response)
 

	
 
        extras = {
 
            'ip': ipaddr,
 
            'username': username,
 
            'action': action,
 
            'repository': repo_name,
 
            'scm': 'git',
 
        }
 

	
 
        # set the environ variables for this request
 
        os.environ['RC_SCM_DATA'] = json.dumps(extras)
 
        #===================================================================
 
        # GIT REQUEST HANDLING
 
        #===================================================================
 
        repo_path = os.path.join(safe_str(self.basepath), safe_str(repo_name))
 
        log.debug('Repository path is %s' % repo_path)
 

	
 
        baseui = make_ui('db')
 
        self.__inject_extras(repo_path, baseui, extras)
 

	
 
        try:
 
            # invalidate cache on push
 
            if action == 'push':
 
                self._invalidate_cache(repo_name)
 
            self._handle_githooks(repo_name, action, baseui, environ)
 

	
 
            log.info('%s action on GIT repo "%s"' % (action, repo_name))
 
            app = self.__make_app(repo_name, repo_path, username)
 
            return app(environ, start_response)
 
        except Exception:
 
            log.error(traceback.format_exc())
 
            return HTTPInternalServerError()(environ, start_response)
 

	
 
    def __make_app(self, repo_name, repo_path, username):
 
        """
 
        Make an wsgi application using dulserver
 

	
 
        :param repo_name: name of the repository
 
        :param repo_path: full path to the repository
 
        """
 

	
 
        from rhodecode.lib.middleware.pygrack import make_wsgi_app
 
        app = make_wsgi_app(
 
            repo_root=safe_str(self.basepath),
 
            repo_name=repo_name,
 
            username=username,
 
        )
 
        app = GunzipFilter(LimitedInputFilter(app))
 
        return app
 

	
 
    def __get_repository(self, environ):
 
        """
 
        Get's repository name out of PATH_INFO header
 

	
 
        :param environ: environ where PATH_INFO is stored
 
        """
 
        try:
 
            environ['PATH_INFO'] = self._get_by_id(environ['PATH_INFO'])
 
            repo_name = GIT_PROTO_PAT.match(environ['PATH_INFO']).group(1)
rhodecode/lib/middleware/simplehg.py
Show inline comments
 
# -*- coding: utf-8 -*-
 
"""
 
    rhodecode.lib.middleware.simplehg
 
    ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 

	
 
    SimpleHG middleware for handling mercurial protocol request
 
    (push/clone etc.). It's implemented with basic auth function
 

	
 
    :created_on: Apr 28, 2010
 
    :author: marcink
 
    :copyright: (C) 2010-2012 Marcin Kuzminski <marcin@python-works.com>
 
    :license: GPLv3, see COPYING for more details.
 
"""
 
# This program is free software: you can redistribute it and/or modify
 
# it under the terms of the GNU General Public License as published by
 
# the Free Software Foundation, either version 3 of the License, or
 
# (at your option) any later version.
 
#
 
# This program is distributed in the hope that it will be useful,
 
# but WITHOUT ANY WARRANTY; without even the implied warranty of
 
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 
# GNU General Public License for more details.
 
#
 
# You should have received a copy of the GNU General Public License
 
# along with this program.  If not, see <http://www.gnu.org/licenses/>.
 

	
 
import os
 
import logging
 
import traceback
 
import urllib
 

	
 
from mercurial.error import RepoError
 
from mercurial.hgweb import hgweb_mod
 

	
 
from paste.httpheaders import REMOTE_USER, AUTH_TYPE
 
from webob.exc import HTTPNotFound, HTTPForbidden, HTTPInternalServerError, \
 
    HTTPBadRequest, HTTPNotAcceptable
 

	
 
from rhodecode.lib.utils2 import safe_str
 
from rhodecode.lib.base import BaseVCSController
 
from rhodecode.lib.auth import get_container_username
 
from rhodecode.lib.utils import make_ui, is_valid_repo, ui_sections
 
from rhodecode.lib.compat import json
 
from rhodecode.model.db import User
 

	
 

	
 
log = logging.getLogger(__name__)
 

	
 

	
 
def is_mercurial(environ):
 
    """
 
    Returns True if request's target is mercurial server - header
 
    ``HTTP_ACCEPT`` of such request would start with ``application/mercurial``.
 
    """
 
    http_accept = environ.get('HTTP_ACCEPT')
 
    path_info = environ['PATH_INFO']
 
    if http_accept and http_accept.startswith('application/mercurial'):
 
        ishg_path = True
 
    else:
 
        ishg_path = False
 

	
 
    log.debug('pathinfo: %s detected as HG %s' % (
 
        path_info, ishg_path)
 
    )
 
    return ishg_path
 

	
 

	
 
class SimpleHg(BaseVCSController):
 

	
 
    def _handle_request(self, environ, start_response):
 
        if not is_mercurial(environ):
 
            return self.application(environ, start_response)
 
        if not self._check_ssl(environ, start_response):
 
            return HTTPNotAcceptable('SSL REQUIRED !')(environ, start_response)
 

	
 
        ipaddr = self._get_ip_addr(environ)
 
        username = None
 
        # skip passing error to error controller
 
        environ['pylons.status_code_redirect'] = True
 

	
 
        #======================================================================
 
        # EXTRACT REPOSITORY NAME FROM ENV
 
        #======================================================================
 
        try:
 
            repo_name = environ['REPO_NAME'] = self.__get_repository(environ)
 
            log.debug('Extracted repo name is %s' % repo_name)
 
        except:
 
            return HTTPInternalServerError()(environ, start_response)
 

	
 
        # quick check if that dir exists...
 
        if is_valid_repo(repo_name, self.basepath) is False:
 
        if is_valid_repo(repo_name, self.basepath, 'hg') is False:
 
            return HTTPNotFound()(environ, start_response)
 

	
 
        #======================================================================
 
        # GET ACTION PULL or PUSH
 
        #======================================================================
 
        action = self.__get_action(environ)
 

	
 
        #======================================================================
 
        # CHECK ANONYMOUS PERMISSION
 
        #======================================================================
 
        if action in ['pull', 'push']:
 
            anonymous_user = self.__get_user('default')
 
            username = anonymous_user.username
 
            anonymous_perm = self._check_permission(action, anonymous_user,
 
                                                    repo_name)
 

	
 
            if anonymous_perm is not True or anonymous_user.active is False:
 
                if anonymous_perm is not True:
 
                    log.debug('Not enough credentials to access this '
 
                              'repository as anonymous user')
 
                if anonymous_user.active is False:
 
                    log.debug('Anonymous access is disabled, running '
 
                              'authentication')
 
                #==============================================================
 
                # DEFAULT PERM FAILED OR ANONYMOUS ACCESS IS DISABLED SO WE
 
                # NEED TO AUTHENTICATE AND ASK FOR AUTH USER PERMISSIONS
 
                #==============================================================
 

	
 
                # Attempting to retrieve username from the container
 
                username = get_container_username(environ, self.config)
 

	
 
                # If not authenticated by the container, running basic auth
 
                if not username:
 
                    self.authenticate.realm = \
 
                        safe_str(self.config['rhodecode_realm'])
 
                    result = self.authenticate(environ)
 
                    if isinstance(result, str):
 
                        AUTH_TYPE.update(environ, 'basic')
 
                        REMOTE_USER.update(environ, result)
 
                        username = result
 
                    else:
 
                        return result.wsgi_application(environ, start_response)
 

	
 
                #==============================================================
 
                # CHECK PERMISSIONS FOR THIS REQUEST USING GIVEN USERNAME
 
                #==============================================================
 
                try:
 
                    user = self.__get_user(username)
 
                    if user is None or not user.active:
 
                        return HTTPForbidden()(environ, start_response)
 
                    username = user.username
 
                except:
 
                    log.error(traceback.format_exc())
 
                    return HTTPInternalServerError()(environ, start_response)
 

	
 
                #check permissions for this repository
 
                perm = self._check_permission(action, user, repo_name)
 
                if perm is not True:
 
                    return HTTPForbidden()(environ, start_response)
 

	
 
        # extras are injected into mercurial UI object and later available
 
        # in hg hooks executed by rhodecode
 
        extras = {
 
            'ip': ipaddr,
 
            'username': username,
 
            'action': action,
 
            'repository': repo_name,
 
            'scm': 'hg',
 
        }
 

	
 
        # set the environ variables for this request
 
        os.environ['RC_SCM_DATA'] = json.dumps(extras)
 
        #======================================================================
 
        # MERCURIAL REQUEST HANDLING
 
        #======================================================================
 
        repo_path = os.path.join(safe_str(self.basepath), safe_str(repo_name))
 
        log.debug('Repository path is %s' % repo_path)
 

	
 
        baseui = make_ui('db')
 
        self.__inject_extras(repo_path, baseui, extras)
 

	
 
        try:
 
            # invalidate cache on push
 
            if action == 'push':
 
                self._invalidate_cache(repo_name)
 
            log.info('%s action on HG repo "%s"' % (action, repo_name))
 
            app = self.__make_app(repo_path, baseui, extras)
 
            return app(environ, start_response)
 
        except RepoError, e:
 
            if str(e).find('not found') != -1:
 
                return HTTPNotFound()(environ, start_response)
 
        except Exception:
 
            log.error(traceback.format_exc())
 
            return HTTPInternalServerError()(environ, start_response)
 

	
 
    def __make_app(self, repo_name, baseui, extras):
 
        """
 
        Make an wsgi application using hgweb, and inject generated baseui
 
        instance, additionally inject some extras into ui object
 
        """
 
        return hgweb_mod.hgweb(repo_name, name=repo_name, baseui=baseui)
 

	
 
    def __get_repository(self, environ):
 
        """
 
        Get's repository name out of PATH_INFO header
 

	
 
        :param environ: environ where PATH_INFO is stored
 
        """
 
        try:
 
            environ['PATH_INFO'] = self._get_by_id(environ['PATH_INFO'])
 
            repo_name = '/'.join(environ['PATH_INFO'].split('/')[1:])
 
            if repo_name.endswith('/'):
 
                repo_name = repo_name.rstrip('/')
 
        except:
 
            log.error(traceback.format_exc())
 
            raise
 

	
 
        return repo_name
 

	
 
    def __get_user(self, username):
rhodecode/lib/utils.py
Show inline comments
 
@@ -158,109 +158,114 @@ def action_logger(user, action, repo, ip
 
        user_log.action_date = datetime.datetime.now()
 
        user_log.user_ip = ipaddr
 
        sa.add(user_log)
 

	
 
        log.info(
 
            'Adding user %s, action %s on %s' % (user_obj, action,
 
                                                 safe_unicode(repo))
 
        )
 
        if commit:
 
            sa.commit()
 
    except:
 
        log.error(traceback.format_exc())
 
        raise
 

	
 

	
 
def get_repos(path, recursive=False):
 
    """
 
    Scans given path for repos and return (name,(type,path)) tuple
 

	
 
    :param path: path to scan for repositories
 
    :param recursive: recursive search and return names with subdirs in front
 
    """
 

	
 
    # remove ending slash for better results
 
    path = path.rstrip(os.sep)
 

	
 
    def _get_repos(p):
 
        if not os.access(p, os.W_OK):
 
            return
 
        for dirpath in os.listdir(p):
 
            if os.path.isfile(os.path.join(p, dirpath)):
 
                continue
 
            cur_path = os.path.join(p, dirpath)
 
            try:
 
                scm_info = get_scm(cur_path)
 
                yield scm_info[1].split(path, 1)[-1].lstrip(os.sep), scm_info
 
            except VCSError:
 
                if not recursive:
 
                    continue
 
                #check if this dir containts other repos for recursive scan
 
                rec_path = os.path.join(p, dirpath)
 
                if os.path.isdir(rec_path):
 
                    for inner_scm in _get_repos(rec_path):
 
                        yield inner_scm
 

	
 
    return _get_repos(path)
 

	
 

	
 
def is_valid_repo(repo_name, base_path):
 
def is_valid_repo(repo_name, base_path, scm=None):
 
    """
 
    Returns True if given path is a valid repository False otherwise
 
    Returns True if given path is a valid repository False otherwise.
 
    If scm param is given also compare if given scm is the same as expected 
 
    from scm parameter
 

	
 
    :param repo_name:
 
    :param base_path:
 
    :param scm:
 

	
 
    :return True: if given path is a valid repository
 
    """
 
    full_path = os.path.join(safe_str(base_path), safe_str(repo_name))
 

	
 
    try:
 
        get_scm(full_path)
 
        scm_ = get_scm(full_path)
 
        if scm:
 
            return scm_[0] == scm
 
        return True
 
    except VCSError:
 
        return False
 

	
 

	
 
def is_valid_repos_group(repos_group_name, base_path):
 
    """
 
    Returns True if given path is a repos group False otherwise
 

	
 
    :param repo_name:
 
    :param base_path:
 
    """
 
    full_path = os.path.join(safe_str(base_path), safe_str(repos_group_name))
 

	
 
    # check if it's not a repo
 
    if is_valid_repo(repos_group_name, base_path):
 
        return False
 

	
 
    try:
 
        # we need to check bare git repos at higher level
 
        # since we might match branches/hooks/info/objects or possible
 
        # other things inside bare git repo
 
        get_scm(os.path.dirname(full_path))
 
        return False
 
    except VCSError:
 
        pass
 

	
 
    # check if it's a valid path
 
    if os.path.isdir(full_path):
 
        return True
 

	
 
    return False
 

	
 

	
 
def ask_ok(prompt, retries=4, complaint='Yes or no, please!'):
 
    while True:
 
        ok = raw_input(prompt)
 
        if ok in ('y', 'ye', 'yes'):
 
            return True
 
        if ok in ('n', 'no', 'nop', 'nope'):
 
            return False
 
        retries = retries - 1
 
        if retries < 0:
 
            raise IOError
 
        print complaint
 

	
 
#propagated from mercurial documentation
 
ui_sections = ['alias', 'auth',
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