Using Additional Features

    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::
      foo =
    You may also specify the full path to an extension::
      myfeature = ~/.hgext/
    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
    To explicitly disable an extension enabled in a configuration file of
    broader scope, prepend its path with !::
      # disabling extension bar residing in /path/to/extension/
      bar = !/path/to/extension/
      # ditto, but no path was supplied for extension baz
      baz = !
    enabled extensions:
     :highlight: syntax highlighting for hgweb (requires Pygments)
    disabled extensions:
     :absorb: apply working directory changes to changesets (EXPERIMENTAL)
     :acl: hooks for controlling repository access
     :amend: provide the amend command (EXPERIMENTAL)
     :automv: check for unrecorded moves at commit time (EXPERIMENTAL)
     :beautifygraph: beautify log -G output by using Unicode characters (EXPERIMENTAL)
     :blackbox: log repository events to a blackbox for debugging
     :bookflow: implements bookmark-based branching (EXPERIMENTAL)
     :bugzilla: hooks for integrating with the Bugzilla bug tracker
     :censor: erase file content at a given revision
     :children: command to display child changesets (DEPRECATED)
     :churn: command to display statistics about repository history
     :clonebundles: advertise pre-generated bundles to seed clones
     :closehead: close arbitrary heads without checking them out first
     :commitextras: adds a new flag extras to commit (ADVANCED)
     :convert: import revisions from foreign VCS repositories into Mercurial
     :eol: automatically manage newlines in repository files
     :extdiff: command to allow external programs to compare revisions
     :factotum: http authentication with factotum
     :fastannotate: yet another annotate implementation that might be faster (EXPERIMENTAL)
     :fastexport: export repositories as git fast-import stream
     :fetch: pull, update and merge in one command (DEPRECATED)
     :fix: rewrite file content in changesets or working copy (EXPERIMENTAL)
     :fsmonitor: Faster status operations with the Watchman file monitor (EXPERIMENTAL)
     :git: grant Mercurial the ability to operate on Git repositories. (EXPERIMENTAL)
     :githelp: try mapping git commands to Mercurial commands
     :gpg: commands to sign and verify changesets
     :graphlog: command to view revision graphs from a shell (DEPRECATED)
     :hgk: browse the repository in a graphical way
     :histedit: interactive history editing
     :hooklib: collection of simple hooks for common tasks (EXPERIMENTAL)
     :infinitepush:  store some pushes in a remote blob store on the server (EXPERIMENTAL)
     :journal: track previous positions of bookmarks (EXPERIMENTAL)
     :keyword: expand keywords in tracked files
     :largefiles: track large binary files
     :lfs: lfs - large file support (EXPERIMENTAL)
     :logtoprocess: send ui.log() data to a subprocess (EXPERIMENTAL)
     :mq: manage a stack of patches
     :narrow: create clones which fetch history data for subset of files (EXPERIMENTAL)
     :notify: hooks for sending email push notifications
     :pager: browse command output with an external pager (DEPRECATED)
     :patchbomb: command to send changesets as (a series of) patch emails
     :phabricator: simple Phabricator integration (EXPERIMENTAL)
     :purge: command to delete untracked files from the working directory
     :rebase: command to move sets of revisions to a different ancestor
     :record: commands to interactively select changes for commit/qrefresh (DEPRECATED)
     :releasenotes: generate release notes from commit messages (EXPERIMENTAL)
     :relink: recreates hardlinks between repository clones
     :remotefilelog: remotefilelog causes Mercurial to lazilly fetch file contents (EXPERIMENTAL)
     :remotenames:  showing remotebookmarks and remotebranches in UI (EXPERIMENTAL)
     :schemes: extend schemes with shortcuts to repository swarms
     :share: share a common history between several working directories
     :show: unified command to show various repository information (EXPERIMENTAL)
     :sparse: allow sparse checkouts of the working directory (EXPERIMENTAL)
     :split: command to split a changeset into smaller ones (EXPERIMENTAL)
     :sqlitestore: store repository data in SQLite (EXPERIMENTAL)
     :strip: strip changesets and their descendants from history
     :transplant: command to transplant changesets from another branch
     :uncommit: uncommit part or all of a local changeset (EXPERIMENTAL)
     :win32mbcs: allow the use of MBCS paths with problematic encodings
     :win32text: perform automatic newline conversion (DEPRECATED)
     :zeroconf: discover and advertise repositories on the local network