.. _changelog:

=========

Changelog

=========

----------------------

:status: in-progress

:branch: beta

news

++++

- new codereview system

- email map, allowing users to have multiple email addresses mapped into

  their accounts

- improved git-hook system. Now all actions for git are logged into journal

  including pushed revisions, user and IP address

- changed setup-app into setup-rhodecode and added default options to it.

- new git repos are created as bare now by default

- #464 added links to groups in permission box

- #465 mentions autocomplete inside comments boxes

- #469 added --update-only option to whoosh to re-index only given list

  of repos in index 

- rhodecode-api CLI client

- new git http protocol replaced buggy dulwich implementation.

  Now based on pygrack & gitweb

- Improved RSS/ATOM feeds. Discoverable by browsers using proper headers, and 

  reformated based on user suggestions. Additional rss/atom feeds for user

  journal

- various i18n improvements

- #478 permissions overview for admin in user edit view

- File view now displays small gravatars off all authors of given file

- Implemented landing revisions. Each repository will get landing_rev attribute

  that defines 'default' revision/branch for generating readme files

- Implemented #509, RhodeCode enforces SSL for push/pulling if requested at 

  earliest possible call.

- Import remote svn repositories to mercurial using hgsubversion.

- Fixed #508 RhodeCode now has a option to explicitly set forking permissions

- RhodeCode can use alternative server for generating avatar icons

- implemented repositories locking. Pull locks, push unlocks. Also can be done

  via API calls

- #538 form for permissions can handle multiple users at once 

fixes

+++++

- improved translations

- fixes issue #455 Creating an archive generates an exception on Windows

- fixes #448 Download ZIP archive keeps file in /tmp open and results 

  in out of disk space

- fixes issue #454 Search results under Windows include proceeding

  backslash

- fixed issue #450. Rhodecode no longer will crash when bad revision is

  present in journal data.

- fix for issue #417, git execution was broken on windows for certain

  commands.

- fixed #413. Don't disable .git directory for bare repos on deleting

- fixed issue #459. Changed the way of obtaining logger in reindex task.

- fixed #453 added ID field in whoosh SCHEMA that solves the issue of

  reindexing modified files

- fixed #481 rhodecode emails are sent without Date header 

- fixed #458 wrong count when no repos are present

- fixed issue #492 missing `\ No newline at end of file` test at the end of 

  new chunk in html diff

- full text search now works also for commit messages

1.3.6 (**2012-05-17**)

----------------------

news

++++

- chinese traditional translation

- changed setup-app into setup-rhodecode and added arguments for auto-setup 

  mode that doesn't need user interaction 

fixes

+++++

- fixed no scm found warning

- fixed __future__ import error on rcextensions

- made simplejson required lib for speedup on JSON encoding

- fixes #449 bad regex could get more than revisions from parsing history

- don't clear DB session when CELERY_EAGER is turned ON

1.3.5 (**2012-05-10**)

----------------------

news

++++

- use ext_json for json module

- unified annotation view with file source view

- notification improvements, better inbox + css

- #419 don't strip passwords for login forms, make rhodecode 

  more compatible with LDAP servers

- Added HTTP_X_FORWARDED_FOR as another method of extracting 

  IP for pull/push logs. - moved all to base controller  

- #415: Adding comment to changeset causes reload. 

  Comments are now added via ajax and doesn't reload the page

- #374 LDAP config is discarded when LDAP can't be activated

- limited push/pull operations are now logged for git in the journal

- bumped mercurial to 2.2.X series

- added support for displaying submodules in file-browser

- #421 added bookmarks in changelog view

fixes

+++++

- fixed dev-version marker for stable when served from source codes

- fixed missing permission checks on show forks page

- #418 cast to unicode fixes in notification objects

- #426 fixed mention extracting regex

- fixed remote-pulling for git remotes remopositories

- fixed #434: Error when accessing files or changesets of a git repository 

  with submodules

- fixed issue with empty APIKEYS for users after registration ref. #438

- fixed issue with getting README files from git repositories

1.3.4 (**2012-03-28**)

----------------------

news

++++

- Whoosh logging is now controlled by the .ini files logging setup

- added clone-url into edit form on /settings page

- added help text into repo add/edit forms

- created rcextensions module with additional mappings (ref #322) and

  post push/pull/create repo hooks callbacks

- implemented #377 Users view for his own permissions on account page

- #399 added inheritance of permissions for users group on repos groups

- #401 repository group is automatically pre-selected when adding repos 

  inside a repository group

- added alternative HTTP 403 response when client failed to authenticate. Helps 

  solving issues with Mercurial and LDAP

- #402 removed group prefix from repository name when listing repositories 

  inside a group

- added gravatars into permission view and permissions autocomplete

- #347 when running multiple RhodeCode instances, properly invalidates cache 

  for all registered servers

fixes

+++++

- fixed #390 cache invalidation problems on repos inside group

- fixed #385 clone by ID url was loosing proxy prefix in URL

- fixed some unicode problems with waitress

- fixed issue with escaping < and > in changeset commits

- fixed error occurring during recursive group creation in API 

  create_repo function

- fixed #393 py2.5 fixes for routes url generator

- fixed #397 Private repository groups shows up before login

- fixed #396 fixed problems with revoking users in nested groups

- fixed mysql unicode issues + specified InnoDB as default engine with 

  utf8 charset

- #406 trim long branch/tag names in changelog to not break UI

1.3.3 (**2012-03-02**)

----------------------

news

++++

fixes

+++++

- fixed some python2.5 compatibility issues 

- fixed issues with removed repos was accidentally added as groups, after

  full rescan of paths

- fixes #376 Cannot edit user (using container auth)

- fixes #378 Invalid image urls on changeset screen with proxy-prefix 

  configuration

- fixed initial sorting of repos inside repo group

- fixes issue when user tried to resubmit same permission into user/user_groups

- bumped beaker version that fixes #375 leap error bug

- fixed raw_changeset for git. It was generated with hg patch headers

- fixed vcs issue with last_changeset for filenodes

- fixed missing commit after hook delete

- fixed #372 issues with git operation detection that caused a security issue 

  for git repos

1.3.2 (**2012-02-28**)

----------------------

news

++++

fixes

+++++

- fixed git protocol issues with repos-groups

- fixed git remote repos validator that prevented from cloning remote git repos

- fixes #370 ending slashes fixes for repo and groups

- fixes #368 improved git-protocol detection to handle other clients

- fixes #366 When Setting Repository Group To Blank Repo Group Wont Be 

  Moved To Root

- fixes #371 fixed issues with beaker/sqlalchemy and non-ascii cache keys 

- fixed #373 missing cascade drop on user_group_to_perm table

1.3.1 (**2012-02-27**)

----------------------

news

++++

fixes

+++++

- redirection loop occurs when remember-me wasn't checked during login

- fixes issues with git blob history generation 

- don't fetch branch for git in file history dropdown. Causes unneeded slowness

1.3.0 (**2012-02-26**)

----------------------

news

++++

- code review, inspired by github code-comments 

- #215 rst and markdown README files support

- #252 Container-based and proxy pass-through authentication support

- #44 branch browser. Filtering of changelog by branches

- mercurial bookmarks support

- new hover top menu, optimized to add maximum size for important views

- configurable clone url template with possibility to specify  protocol like 

  ssh:// or http:// and also manually alter other parts of clone_url.

- enabled largefiles extension by default

- optimized summary file pages and saved a lot of unused space in them

- #239 option to manually mark repository as fork

- #320 mapping of commit authors to RhodeCode users

- #304 hashes are displayed using monospace font    

- diff configuration, toggle white lines and context lines

- #307 configurable diffs, whitespace toggle, increasing context lines

- sorting on branches, tags and bookmarks using YUI datatable

- improved file filter on files page

- implements #330 api method for listing nodes ar particular revision

- #73 added linking issues in commit messages to chosen issue tracker url

  based on user defined regular expression

- added linking of changesets in commit messages  

- new compact changelog with expandable commit messages

- firstname and lastname are optional in user creation

- #348 added post-create repository hook

- #212 global encoding settings is now configurable from .ini files 

- #227 added repository groups permissions

- markdown gets codehilite extensions

- new API methods, delete_repositories, grante/revoke permissions for groups 

  and repos

fixes

+++++

- rewrote dbsession management for atomic operations, and better error handling

- fixed sorting of repo tables

- #326 escape of special html entities in diffs

- normalized user_name => username in api attributes

- fixes #298 ldap created users with mixed case emails created conflicts 

  on saving a form

- fixes issue when owner of a repo couldn't revoke permissions for users 

  and groups

- fixes #271 rare JSON serialization problem with statistics

- fixes #337 missing validation check for conflicting names of a group with a

  repositories group

- #340 fixed session problem for mysql and celery tasks

- fixed #331 RhodeCode mangles repository names if the a repository group 

  contains the "full path" to the repositories

- #355 RhodeCode doesn't store encrypted LDAP passwords

1.2.5 (**2012-01-28**)

----------------------

news

++++

fixes

+++++

- #340 Celery complains about MySQL server gone away, added session cleanup

  for celery tasks

- #341 "scanning for repositories in None" log message during Rescan was missing

  a parameter

- fixed creating archives with subrepos. Some hooks were triggered during that

  operation leading to crash.

- fixed missing email in account page.

- Reverted Mercurial to 2.0.1 for windows due to bug in Mercurial that makes

  forking on windows impossible 

1.2.4 (**2012-01-19**)

----------------------

news

++++

- RhodeCode is bundled with mercurial series 2.0.X by default, with

  full support to largefiles extension. Enabled by default in new installations

- #329 Ability to Add/Remove Groups to/from a Repository via AP

- added requires.txt file with requirements

fixes

+++++

- fixes db session issues with celery when emailing admins

- #331 RhodeCode mangles repository names if the a repository group 

  contains the "full path" to the repositories

- #298 Conflicting e-mail addresses for LDAP and RhodeCode users

- DB session cleanup after hg protocol operations, fixes issues with

  `mysql has gone away` errors

- #333 doc fixes for get_repo api function

- #271 rare JSON serialization problem with statistics enabled

- #337 Fixes issues with validation of repository name conflicting with 

  a group name. A proper message is now displayed.

- #292 made ldap_dn in user edit readonly, to get rid of confusion that field

  doesn't work   

- #316 fixes issues with web description in hgrc files 

1.2.3 (**2011-11-02**)

----------------------

news

++++

- added option to manage repos group for non admin users

- added following API methods for get_users, create_user, get_users_groups, 

  get_users_group, create_users_group, add_user_to_users_groups, get_repos, 

  get_repo, create_repo, add_user_to_repo

- implements #237 added password confirmation for my account 

  and admin edit user.

- implements #291 email notification for global events are now sent to all

  administrator users, and global config email.

fixes

+++++

- added option for passing auth method for smtp mailer

- #276 issue with adding a single user with id>10 to usergroups

- #277 fixes windows LDAP settings in which missing values breaks the ldap auth 

- #288 fixes managing of repos in a group for non admin user

1.2.2 (**2011-10-17**)

----------------------

news

++++

- #226 repo groups are available by path instead of numerical id

fixes

+++++

- #259 Groups with the same name but with different parent group

- #260 Put repo in group, then move group to another group -> repo becomes unavailable

- #258 RhodeCode 1.2 assumes egg folder is writable (lockfiles problems)

- #265 ldap save fails sometimes on converting attributes to booleans, 

  added getter and setter into model that will prevent from this on db model level

- fixed problems with timestamps issues #251 and #213

- fixes #266 RhodeCode allows to create repo with the same name and in 

  the same parent as group

- fixes #245 Rescan of the repositories on Windows

- fixes #248 cannot edit repos inside a group on windows

- fixes #219 forking problems on windows

1.2.1 (**2011-10-08**)

----------------------

news

++++

fixes

+++++

- fixed problems with basic auth and push problems 

- gui fixes

- fixed logger

1.2.0 (**2011-10-07**)

----------------------

news

++++

- implemented #47 repository groups

- implemented #89 Can setup google analytics code from settings menu

- implemented #91 added nicer looking archive urls with more download options

  like tags, branches

- implemented #44 into file browsing, and added follow branch option

- implemented #84 downloads can be enabled/disabled for each repository

- anonymous repository can be cloned without having to pass default:default

  into clone url

- fixed #90 whoosh indexer can index chooses repositories passed in command 

  line

- extended journal with day aggregates and paging

- implemented #107 source code lines highlight ranges

- implemented #93 customizable changelog on combined revision ranges - 

  equivalent of githubs compare view 

- implemented #108 extended and more powerful LDAP configuration

- implemented #56 users groups

- major code rewrites optimized codes for speed and memory usage

- raw and diff downloads are now in git format

- setup command checks for write access to given path

- fixed many issues with international characters and unicode. It uses utf8

  decode with replace to provide less errors even with non utf8 encoded strings

- #125 added API KEY access to feeds

- #109 Repository can be created from external Mercurial link (aka. remote 

  repository, and manually updated (via pull) from admin panel

- beta git support - push/pull server + basic view for git repos

- added followers page and forks page

- server side file creation (with binary file upload interface) 

  and edition with commits powered by codemirror 

- #111 file browser file finder, quick lookup files on whole file tree 

- added quick login sliding menu into main page

- changelog uses lazy loading of affected files details, in some scenarios 

  this can improve speed of changelog page dramatically especially for 

  larger repositories.

- implements #214 added support for downloading subrepos in download menu.

- Added basic API for direct operations on rhodecode via JSON

- Implemented advanced hook management

fixes

+++++

- fixed file browser bug, when switching into given form revision the url was 

  not changing

- fixed propagation to error controller on simplehg and simplegit middlewares

- fixed error when trying to make a download on empty repository

- fixed problem with '[' chars in commit messages in journal

- fixed #99 Unicode errors, on file node paths with non utf-8 characters

- journal fork fixes

- removed issue with space inside renamed repository after deletion

- fixed strange issue on formencode imports

- fixed #126 Deleting repository on Windows, rename used incompatible chars. 

- #150 fixes for errors on repositories mapped in db but corrupted in 

  filesystem

- fixed problem with ascendant characters in realm #181

- fixed problem with sqlite file based database connection pool

- whoosh indexer and code stats share the same dynamic extensions map

- fixes #188 - relationship delete of repo_to_perm entry on user removal

- fixes issue #189 Trending source files shows "show more" when no more exist

- fixes issue #197 Relative paths for pidlocks

- fixes issue #198 password will require only 3 chars now for login form

- fixes issue #199 wrong redirection for non admin users after creating a repository

- fixes issues #202, bad db constraint made impossible to attach same group 

  more than one time. Affects only mysql/postgres

- fixes #218 os.kill patch for windows was missing sig param

- improved rendering of dag (they are not trimmed anymore when number of 

  heads exceeds 5)

1.1.8 (**2011-04-12**)

----------------------

news

++++

- improved windows support

fixes

+++++

- fixed #140 freeze of python dateutil library, since new version is python2.x

  incompatible

- setup-app will check for write permission in given path

- cleaned up license info issue #149

- fixes for issues #137,#116 and problems with unicode and accented characters.

- fixes crashes on gravatar, when passed in email as unicode

- fixed tooltip flickering problems

- fixed came_from redirection on windows

- fixed logging modules, and sql formatters

- windows fixes for os.kill issue #133

- fixes path splitting for windows issues #148

- fixed issue #143 wrong import on migration to 1.1.X

- fixed problems with displaying binary files, thanks to Thomas Waldmann

- removed name from archive files since it's breaking ui for long repo names

- fixed issue with archive headers sent to browser, thanks to Thomas Waldmann

- fixed compatibility for 1024px displays, and larger dpi settings, thanks to 

  Thomas Waldmann

- fixed issue #166 summary pager was skipping 10 revisions on second page

1.1.7 (**2011-03-23**)

----------------------

news

++++

fixes

+++++

- fixed (again) #136 installation support for FreeBSD

1.1.6 (**2011-03-21**)

----------------------

news

++++

fixes

+++++

- fixed #136 installation support for FreeBSD

- RhodeCode will check for python version during installation

1.1.5 (**2011-03-17**)

----------------------

news

++++

- basic windows support, by exchanging pybcrypt into sha256 for windows only

  highly inspired by idea of mantis406

fixes

+++++

- fixed sorting by author in main page

- fixed crashes with diffs on binary files

- fixed #131 problem with boolean values for LDAP

- fixed #122 mysql problems thanks to striker69 

- fixed problem with errors on calling raw/raw_files/annotate functions 

  with unknown revisions

- fixed returned rawfiles attachment names with international character

- cleaned out docs, big thanks to Jason Harris

1.1.4 (**2011-02-19**)

----------------------

news

++++

fixes

+++++

- fixed formencode import problem on settings page, that caused server crash

  when that page was accessed as first after server start

- journal fixes

- fixed option to access repository just by entering http://server/<repo_name> 

1.1.3 (**2011-02-16**)

----------------------

news

++++

- implemented #102 allowing the '.' character in username

- added option to access repository just by entering http://server/<repo_name>

- celery task ignores result for better performance

fixes

+++++

- fixed ehlo command and non auth mail servers on smtp_lib. Thanks to 

  apollo13 and Johan Walles

- small fixes in journal

- fixed problems with getting setting for celery from .ini files

- registration, password reset and login boxes share the same title as main 

  application now

- fixed #113: to high permissions to fork repository

- fixed problem with '[' chars in commit messages in journal

- removed issue with space inside renamed repository after deletion

- db transaction fixes when filesystem repository creation failed

- fixed #106 relation issues on databases different than sqlite

- fixed static files paths links to use of url() method

1.1.2 (**2011-01-12**)

----------------------

news

++++

fixes

+++++

- fixes #98 protection against float division of percentage stats

- fixed graph bug

- forced webhelpers version since it was making troubles during installation 

1.1.1 (**2011-01-06**)

----------------------

news

++++

- added force https option into ini files for easier https usage (no need to

  set server headers with this options)

- small css updates

fixes

+++++

- fixed #96 redirect loop on files view on repositories without changesets

- fixed #97 unicode string passed into server header in special cases (mod_wsgi)

  and server crashed with errors

- fixed large tooltips problems on main page

- fixed #92 whoosh indexer is more error proof

1.1.0 (**2010-12-18**)

----------------------

news

++++

- rewrite of internals for vcs >=0.1.10

- uses mercurial 1.7 with dotencode disabled for maintaining compatibility 

  with older clients

- anonymous access, authentication via ldap

- performance upgrade for cached repos list - each repository has its own 

  cache that's invalidated when needed.

- performance upgrades on repositories with large amount of commits (20K+)

- main page quick filter for filtering repositories

- user dashboards with ability to follow chosen repositories actions

- sends email to admin on new user registration

- added cache/statistics reset options into repository settings

- more detailed action logger (based on hooks) with pushed changesets lists

  and options to disable those hooks from admin panel

- introduced new enhanced changelog for merges that shows more accurate results

- new improved and faster code stats (based on pygments lexers mapping tables, 

  showing up to 10 trending sources for each repository. Additionally stats

  can be disabled in repository settings.

- gui optimizations, fixed application width to 1024px

- added cut off (for large files/changesets) limit into config files

- whoosh, celeryd, upgrade moved to paster command

- other than sqlite database backends can be used

fixes

+++++

- fixes #61 forked repo was showing only after cache expired

- fixes #76 no confirmation on user deletes

- fixes #66 Name field misspelled

- fixes #72 block user removal when he owns repositories

- fixes #69 added password confirmation fields

- fixes #87 RhodeCode crashes occasionally on updating repository owner

- fixes #82 broken annotations on files with more than 1 blank line at the end

- a lot of fixes and tweaks for file browser

- fixed detached session issues

- fixed when user had no repos he would see all repos listed in my account

- fixed ui() instance bug when global hgrc settings was loaded for server 

  instance and all hgrc options were merged with our db ui() object

- numerous small bugfixes

(special thanks for TkSoh for detailed feedback)

1.0.2 (**2010-11-12**)

----------------------

news

++++

- tested under python2.7

- bumped sqlalchemy and celery versions

fixes

+++++

- fixed #59 missing graph.js

- fixed repo_size crash when repository had broken symlinks

- fixed python2.5 crashes.

1.0.1 (**2010-11-10**)

----------------------

news

++++

- small css updated

fixes

+++++

- fixed #53 python2.5 incompatible enumerate calls

- fixed #52 disable mercurial extension for web

- fixed #51 deleting repositories don't delete it's dependent objects

1.0.0 (**2010-11-02**)

----------------------

- security bugfix simplehg wasn't checking for permissions on commands

  other than pull or push.

- fixed doubled messages after push or pull in admin journal

- templating and css corrections, fixed repo switcher on chrome, updated titles

- admin menu accessible from options menu on repository view

- permissions cached queries

1.0.0rc4  (**2010-10-12**)

--------------------------

- fixed python2.5 missing simplejson imports (thanks to Jens Bäckman)

- removed cache_manager settings from sqlalchemy meta

- added sqlalchemy cache settings to ini files

- validated password length and added second try of failure on paster setup-app

- fixed setup database destroy prompt even when there was no db

1.0.0rc3 (**2010-10-11**)

-------------------------

- fixed i18n during installation.

1.0.0rc2 (**2010-10-11**)

-------------------------

- Disabled dirsize in file browser, it's causing nasty bug when dir renames 

  occure. After vcs is fixed it'll be put back again.

- templating/css rewrites, optimized css.

# -*- coding: utf-8 -*-

"""

    rhodecode.controllers.changeset

    ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

    changeset controller for pylons showoing changes beetween

    revisions

    :created_on: Apr 25, 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 logging

import traceback

from collections import defaultdict

from webob.exc import HTTPForbidden

from pylons import tmpl_context as c, url, request, response

from pylons.i18n.translation import _

from pylons.controllers.util import redirect

from pylons.decorators import jsonify

from rhodecode.lib.vcs.exceptions import RepositoryError, ChangesetError, \

    ChangesetDoesNotExistError

from rhodecode.lib.vcs.nodes import FileNode

import rhodecode.lib.helpers as h

from rhodecode.lib.auth import LoginRequired, HasRepoPermissionAnyDecorator

from rhodecode.lib.base import BaseRepoController, render

from rhodecode.lib.utils import action_logger

from rhodecode.lib.compat import OrderedDict

from rhodecode.lib import diffs

from rhodecode.model.db import ChangesetComment, ChangesetStatus

from rhodecode.model.comment import ChangesetCommentsModel

from rhodecode.model.changeset_status import ChangesetStatusModel

from rhodecode.model.meta import Session

from rhodecode.lib.diffs import wrapped_diff

from rhodecode.model.repo import RepoModel

from rhodecode.lib.exceptions import StatusChangeOnClosedPullRequestError

from rhodecode.lib.vcs.backends.base import EmptyChangeset

log = logging.getLogger(__name__)

def _update_with_GET(params, GET):

    for k in ['diff1', 'diff2', 'diff']:

        params[k] += GET.getall(k)

def anchor_url(revision, path, GET):

    fid = h.FID(revision, path)

    return h.url.current(anchor=fid, **dict(GET))

def get_ignore_ws(fid, GET):

    ig_ws_global = GET.get('ignorews')

    ig_ws = filter(lambda k: k.startswith('WS'), GET.getall(fid))

    if ig_ws:

        try:

            return int(ig_ws[0].split(':')[-1])

        except:

            pass

    return ig_ws_global

def _ignorews_url(GET, fileid=None):

    fileid = str(fileid) if fileid else None

    params = defaultdict(list)

    _update_with_GET(params, GET)

    lbl = _('show white space')

    ig_ws = get_ignore_ws(fileid, GET)

    ln_ctx = get_line_ctx(fileid, GET)

    # global option

    if fileid is None:

        if ig_ws is None:

            params['ignorews'] += [1]

            lbl = _('ignore white space')

        ctx_key = 'context'

        ctx_val = ln_ctx

    # per file options

    else:

        if ig_ws is None:

            params[fileid] += ['WS:1']

            lbl = _('ignore white space')

        ctx_key = fileid

        ctx_val = 'C:%s' % ln_ctx

    # if we have passed in ln_ctx pass it along to our params

    if ln_ctx:

        params[ctx_key] += [ctx_val]

    params['anchor'] = fileid

    img = h.image(h.url('/images/icons/text_strikethrough.png'), lbl, class_='icon')

    return h.link_to(img, h.url.current(**params), title=lbl, class_='tooltip')

def get_line_ctx(fid, GET):

    ln_ctx_global = GET.get('context')

    ln_ctx = filter(lambda k: k.startswith('C'), GET.getall(fid))

    if ln_ctx:

        retval = ln_ctx[0].split(':')[-1]

    else:

        retval = ln_ctx_global

    try:

        return int(retval)

    except:

        return

def _context_url(GET, fileid=None):

    """

    Generates url for context lines

    :param fileid:

    """