co_day_auth_aggr[akc(cs.author)]['data']\

                            .append(datadict)

            else:

                if k >= ts_min_y and k <= ts_max_y or skip_date_limit:

                    co_day_auth_aggr[akc(cs.author)] = {

                                        "label": akc(cs.author),

                                        "data": [{"time":k,

                                                 "commits":1,

                                                 "added":len(cs.added),

                                                 "changed":len(cs.changed),

                                                 "removed":len(cs.removed),

                                                 }],

                                        "schema": ["commits"],

                                        }

            #gather all data by day

            if k in commits_by_day_aggregate:

                commits_by_day_aggregate[k] += 1

            else:

                commits_by_day_aggregate[k] = 1

        overview_data = sorted(commits_by_day_aggregate.items(),

                               key=itemgetter(0))

        if not co_day_auth_aggr:

            co_day_auth_aggr[akc(repo.contact)] = {

                "label": akc(repo.contact),

                "data": [0, 1],

                "schema": ["commits"],

            }

        stats = cur_stats if cur_stats else Statistics()

        stats.commit_activity = json.dumps(co_day_auth_aggr)

        stats.commit_activity_combined = json.dumps(overview_data)

        log.debug('last revison %s', last_rev)

        leftovers = len(repo.revisions[last_rev:])

        log.debug('revisions to parse %s', leftovers)

        if last_rev == 0 or leftovers < parse_limit:

            log.debug('getting code trending stats')

            stats.languages = json.dumps(__get_codes_stats(repo_name))

        try:

            stats.repository = dbrepo

            stats.stat_on_revision = last_cs.revision if last_cs else 0

            sa.add(stats)

            sa.commit()

        except:

            log.error(traceback.format_exc())

            sa.rollback()

            lock.release()

            return False

        #final release

        lock.release()

        #execute another task if celery is enabled

        if len(repo.revisions) > 1 and CELERY_ON:

            run_task(get_commits_stats, repo_name, ts_min_y, ts_max_y)

        return True

    except LockHeld:

        log.info('LockHeld')

        return 'Task with key %s already running' % lockkey

@task(ignore_result=True)

def send_password_link(user_email):

    from rhodecode.model.notification import EmailNotificationModel

    log = get_logger(send_password_link)

    try:

        sa = get_session()

        user = User.get_by_email(user_email)

        if user:

            log.debug('password reset user found %s' % user)

            link = url('reset_password_confirmation', key=user.api_key,

                       qualified=True)

            reg_type = EmailNotificationModel.TYPE_PASSWORD_RESET

            body = EmailNotificationModel().get_email_tmpl(reg_type,

                                                **{'user':user.short_contact,

                                                   'reset_url':link})

            log.debug('sending email')

            run_task(send_email, user_email,

                     _("password reset link"), body)

            log.info('send new password mail to %s', user_email)

        else:

            log.debug("password reset email %s not found" % user_email)

    except:

        log.error(traceback.format_exc())

        return False

    return True

@task(ignore_result=True)

def reset_user_password(user_email):

    from rhodecode.lib import auth

    log = get_logger(reset_user_password)

    try:

        try:

            sa = get_session()

            user = User.get_by_email(user_email)

            new_passwd = auth.PasswordGenerator().gen_password(8,

                             auth.PasswordGenerator.ALPHABETS_BIG_SMALL)

            if user:

                user.password = auth.get_crypt_password(new_passwd)

                user.api_key = auth.generate_api_key(user.username)

                sa.add(user)

                sa.commit()

                log.info('change password for %s', user_email)

            if new_passwd is None:

                raise Exception('unable to generate new password')

        except:

            log.error(traceback.format_exc())

            sa.rollback()

        run_task(send_email, user_email,

                 'Your new password',

                 'Your new RhodeCode password:%s' % (new_passwd))

        log.info('send new password mail to %s', user_email)

    except:

        log.error('Failed to update user password')

        log.error(traceback.format_exc())

    return True

@task(ignore_result=True)

def send_email(recipients, subject, body, html_body=''):

    """

    Sends an email with defined parameters from the .ini files.

    :param recipients: list of recipients, it this is empty the defined email

        address from field 'email_to' is used instead

    :param subject: subject of the mail

    :param body: body of the mail

    :param html_body: html version of body

    """

    log = get_logger(send_email)

    sa = get_session()

    email_config = config

    subject = "%s %s" % (email_config.get('email_prefix'), subject)

    if not recipients:

        # if recipients are not defined we send to email_config + all admins

        admins = [u.email for u in User.query()

                  .filter(User.admin == True).all()]

        recipients = [email_config.get('email_to')] + admins

    mail_from = email_config.get('app_email_from', 'RhodeCode')

    user = email_config.get('smtp_username')

    passwd = email_config.get('smtp_password')

    mail_server = email_config.get('smtp_server')

    mail_port = email_config.get('smtp_port')

    tls = str2bool(email_config.get('smtp_use_tls'))

    ssl = str2bool(email_config.get('smtp_use_ssl'))

    debug = str2bool(config.get('debug'))

    smtp_auth = email_config.get('smtp_auth')

    try:

        m = SmtpMailer(mail_from, user, passwd, mail_server, smtp_auth,

                       mail_port, ssl, tls, debug=debug)

        m.send(recipients, subject, body, html_body)

    except:

        log.error('Mail sending failed')

        log.error(traceback.format_exc())

        return False

    return True

@task(ignore_result=True)

def create_repo_fork(form_data, cur_user):

    """

    Creates a fork of repository using interval VCS methods

    :param form_data:

    :param cur_user:

    """

    from rhodecode.model.repo import RepoModel

    log = get_logger(create_repo_fork)

    Session = get_session()

    base_path = Repository.base_path()

    RepoModel(Session).create(form_data, cur_user, just_db=True, fork=True)

    alias = form_data['repo_type']

    org_repo_name = form_data['org_path']

    source_repo_path = os.path.join(base_path, org_repo_name)

    log.info('creating fork of %s as %s', source_repo_path,

             destination_fork_path)

    backend = get_backend(alias)

    backend(safe_str(destination_fork_path), create=True,

            src_url=safe_str(source_repo_path))

                   org_repo_name, '', Session)

    # finally commit at latest possible stage

    Session.commit()

def __get_codes_stats(repo_name):

    repo = Repository.get_by_repo_name(repo_name).scm_instance

    tip = repo.get_changeset()

    code_stats = {}

    def aggregate(cs):

        for f in cs[2]:

            ext = lower(f.extension)

            if ext in LANGUAGES_EXTENSIONS_MAP.keys() and not f.is_binary:

                if ext in code_stats:

                    code_stats[ext] += 1

                else:

                    code_stats[ext] = 1

    map(aggregate, tip.walk('/'))

    return code_stats or {}