mercurial/help/extensions.txt
author Jun Wu <quark@fb.com>
Thu, 17 Mar 2016 18:32:10 +0000
changeset 28599 0e7a929754aa
parent 19296 da16d21cf4ed
permissions -rw-r--r--
chgserver: use global ui instead of repo ui for dispatch.request.ui Before this patch, chgserver will use repo ui as dispatch.request.ui, while req.ui is designed to be global ui without repo config. Passing repo ui as dispatch.request.ui leads to repo.ui being incorrect, which can lead to unwanted results. For example, if the repo config has [extensions], it could affect which localrepository.featuresetupfuncs get executed and the repo may have an incorrect list of supported requirements. This patch changes _renewui to return both global ui and repo ui. The global ui is passed to req.ui, and the repo ui is used to calculate confighash. It will make chg pass test-largefiles-misc.t and test-requires.t, which are both related to repo requirements.

Mercurial has the ability to add new features through the use of
extensions. Extensions may add new commands, add options to
existing commands, change the default behavior of commands, or
implement hooks.

To enable the "foo" extension, either shipped with Mercurial or in the
Python search path, create an entry for it in your configuration file,
like this::

  [extensions]
  foo =

You may also specify the full path to an extension::

  [extensions]
  myfeature = ~/.hgext/myfeature.py

See :hg:`help config` for more information on configuration files.

Extensions are not loaded by default for a variety of reasons:
they can increase startup overhead; they may be meant for advanced
usage only; they may provide potentially dangerous abilities (such
as letting you destroy or modify history); they might not be ready
for prime time; or they may alter some usual behaviors of stock
Mercurial. It is thus up to the user to activate extensions as
needed.

To explicitly disable an extension enabled in a configuration file of
broader scope, prepend its path with !::

  [extensions]
  # disabling extension bar residing in /path/to/extension/bar.py
  bar = !/path/to/extension/bar.py
  # ditto, but no path was supplied for extension baz
  baz = !