# hgrc

## NAME



           hgrc - configuration files for Mercurial
    


## DESCRIPTION



           The Mercurial system uses a set of configuration files to control
           aspects of its behavior.
    


## TROUBLESHOOTING



           If you're having problems with your configuration, **hg config**
           **--source** can help you understand what is introducing a setting
           into your environment.
    
           See **hg help config.syntax** and **hg help config.files** for information
           about how and where to override things.
    


## STRUCTURE



           The configuration files use a simple ini-file format. A
           configuration file consists of sections, led by a **[section]** header
           and followed by **name = value** entries:
    
           [ui]
           username = Firstname Lastname <firstname.lastname@example.net>
           verbose = True
    
           The above entries will be referred to as **ui.username** and
           **ui.verbose** , respectively. See **hg help config.syntax**.
    


## FILES



           Mercurial reads configuration data from several files, if they
           exist.  These files do not exist by default and you will have to
           create the appropriate configuration files yourself:
    
           Local configuration is put into the per-repository **< repo>/.hg/hgrc**
           file.
    
           Global configuration like the username setting is typically put
           into:
    
           • **%USERPROFILE%\mercurial.ini**(on Windows)
    
           • **$HOME/.hgrc**(on Unix, Plan9)
    
           The names of these files depend on the system on which Mercurial
           is installed. ***.rc** files from a single directory are read in
           alphabetical order, later ones overriding earlier ones. Where
           multiple paths are given below, settings from earlier paths
           override later ones.
    
           On Unix, the following files are consulted:
    
           • **< repo>/.hg/hgrc-not-shared **(per-repository)
    
           • **< repo>/.hg/hgrc **(per-repository)
    
           • **$HOME/.hgrc**(per-user)
    
           • **${XDG_CONFIG_HOME:-$HOME/.config}/hg/hgrc**(per-user)
    
           • **< install-root>/etc/mercurial/hgrc **(per-installation)
    
           • **< install-root>/etc/mercurial/hgrc.d/*.rc **(per-installation)
    
           • **/etc/mercurial/hgrc**(per-system)
    
           • **/etc/mercurial/hgrc.d/*.rc**(per-system)
    
           • **< internal>/*.rc **(defaults)
    
           On Windows, the following files are consulted:
    
           • **< repo>/.hg/hgrc-not-shared **(per-repository)
    
           • **< repo>/.hg/hgrc **(per-repository)
    
           • **%USERPROFILE%\.hgrc**(per-user)
    
           • **%USERPROFILE%\Mercurial.ini**(per-user)
    
           • **%HOME%\.hgrc**(per-user)
    
           • **%HOME%\Mercurial.ini**(per-user)
    
           • **HKEY_LOCAL_MACHINE\SOFTWARE\Mercurial**(per-system)
    
           • **< install-dir>\hgrc.d\*.rc **(per-installation)
    
           • **< install-dir>\Mercurial.ini **(per-installation)
    
           • **%PROGRAMDATA%\Mercurial\hgrc**(per-system)
    
           • **%PROGRAMDATA%\Mercurial\Mercurial.ini**(per-system)
    
           • **%PROGRAMDATA%\Mercurial\hgrc.d\*.rc**(per-system)
    
           • **< internal>/*.rc **(defaults)
    
           Note   The registry key
                  **HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Mercurial** is used
                  when running 32-bit Python on 64-bit Windows.
    
           On Plan9, the following files are consulted:
    
           • **< repo>/.hg/hgrc-not-shared **(per-repository)
    
           • **< repo>/.hg/hgrc **(per-repository)
    
           • **$home/lib/hgrc**(per-user)
    
           • **< install-root>/lib/mercurial/hgrc **(per-installation)
    
           • **< install-root>/lib/mercurial/hgrc.d/*.rc **(per-installation)
    
           • **/lib/mercurial/hgrc**(per-system)
    
           • **/lib/mercurial/hgrc.d/*.rc**(per-system)
    
           • **< internal>/*.rc **(defaults)
    
           Per-repository configuration options only apply in a particular
           repository. This file is not version-controlled, and will not get
           transferred during a "clone" operation. Options in this file
           override options in all other configuration files.
    
           On Plan 9 and Unix, most of this file will be ignored if it
           doesn't belong to a trusted user or to a trusted group. See **hg**
           **help config.trusted** for more details.
    
           Per-user configuration file(s) are for the user running Mercurial.
           Options in these files apply to all Mercurial commands executed by
           this user in any directory. Options in these files override
           per-system and per-installation options.
    
           Per-installation configuration files are searched for in the
           directory where Mercurial is installed. **< install-root> **is the
           parent directory of the **hg** executable (or symlink) being run.
    
           For example, if installed in **/shared/tools/bin/hg** , Mercurial will
           look in **/shared/tools/etc/mercurial/hgrc**. Options in these files
           apply to all Mercurial commands executed by any user in any
           directory.
    
           Per-installation configuration files are for the system on which
           Mercurial is running. Options in these files apply to all
           Mercurial commands executed by any user in any directory. Registry
           keys contain PATH-like strings, every part of which must reference
           a **Mercurial.ini** file or be a directory where ***.rc** files will be
           read.  Mercurial checks each of these locations in the specified
           order until one or more configuration files are detected.
    
           Per-system configuration files are for the system on which
           Mercurial is running. Options in these files apply to all
           Mercurial commands executed by any user in any directory. Options
           in these files override per-installation options.
    
           Mercurial comes with some default configuration. The default
           configuration files are installed with Mercurial and will be
           overwritten on upgrades. Default configuration files should never
           be edited by users or administrators but can be overridden in
           other configuration files. So far the directory only contains
           merge tool configuration but packagers can also put other default
           configuration there.
    
           On versions 5.7 and later, if share-safe functionality is enabled,
           shares will read config file of share source too.
           _< share-source/.hg/hgrc>_ is read before reading _< repo/.hg/hgrc>_.
    
           For configs which should not be shared, _< repo/.hg/hgrc-not-shared>_
           should be used.
    


## SYNTAX



           A configuration file consists of sections, led by a **[section]**
           header and followed by **name = value** entries (sometimes called
           **configuration keys**):
    
           [spam]
           eggs=ham
           green=
              eggs
    
           Each line contains one entry. If the lines that follow are
           indented, they are treated as continuations of that entry. Leading
           whitespace is removed from values. Empty lines are skipped. Lines
           beginning with **#** or **;** are ignored and may be used to provide
           comments.
    
           Configuration keys can be set multiple times, in which case
           Mercurial will use the value that was configured last. As an
           example:
    
           [spam]
           eggs=large
           ham=serrano
           eggs=small
    
           This would set the configuration key named **eggs** to **small**.
    
           It is also possible to define a section multiple times. A section
           can be redefined on the same and/or on different configuration
           files. For example:
    
           [foo]
           eggs=large
           ham=serrano
           eggs=small
    
           [bar]
           eggs=ham
           green=
              eggs
    
           [foo]
           ham=prosciutto
           eggs=medium
           bread=toasted
    
           This would set the **eggs** , **ham** , and **bread** configuration keys of the
           **foo** section to **medium** , **prosciutto** , and **toasted** , respectively. As
           you can see there only thing that matters is the last value that
           was set for each of the configuration keys.
    
           If a configuration key is set multiple times in different
           configuration files the final value will depend on the order in
           which the different configuration files are read, with settings
           from earlier paths overriding later ones as described on the **Files**
           section above.
    
           A line of the form **%include file** will include **file** into the
           current configuration file. The inclusion is recursive, which
           means that included files can include other files. Filenames are
           relative to the configuration file in which the **%include** directive
           is found.  Environment variables and **~user** constructs are expanded
           in **file**. This lets you do something like:
    
           %include ~/.hgrc.d/$HOST.rc
    
           to include a different configuration file on each computer you
           use.
    
           A line with **%unset name** will remove **name** from the current section,
           if it has been set previously.
    
           The values are either free-form text strings, lists of text
           strings, or Boolean values. Boolean values can be set to true
           using any of "1", "yes", "true", or "on" and to false using "0",
           "no", "false", or "off" (all case insensitive).
    
           List values are separated by whitespace or comma, except when
           values are placed in double quotation marks:
    
           allow_read = "John Doe, PhD", brian, betty
    
           Quotation marks can be escaped by prefixing them with a backslash.
           Only quotation marks at the beginning of a word is counted as a
           quotation (e.g., **foo"bar baz** is the list of **foo"bar** and **baz**).
    


## SECTIONS



           This section describes the different sections that may appear in a
           Mercurial configuration file, the purpose of each section, its
           possible keys, and their possible values.
    
       **alias**
           Defines command aliases.
    
           Aliases allow you to define your own commands in terms of other
           commands (or aliases), optionally including arguments. Positional
           arguments in the form of **$1** , **$2** , etc. in the alias definition are
           expanded by Mercurial before execution. Positional arguments not
           already used by **$N** in the definition are put at the end of the
           command to be executed.
    
           Alias definitions consist of lines of the form:
    
           <alias> = <command> [<argument>]...
    
           For example, this definition:
    
           latest = log --limit 5
    
           creates a new command **latest** that shows only the five most recent
           changesets. You can define subsequent aliases using earlier ones:
    
           stable5 = latest -b stable
    
           Note   It is possible to create aliases with the same names as
                  existing commands, which will then override the original
                  definitions. This is almost always a bad idea!
    
           An alias can start with an exclamation point (**!**) to make it a
           shell alias. A shell alias is executed with the shell and will let
           you run arbitrary commands. As an example,
    
           echo = !echo $@
    
           will let you do **hg echo foo** to have **foo** printed in your terminal.
           A better example might be:
    
           purge = !$HG status --no-status --unknown -0 re: | xargs -0 rm -f
    
           which will make **hg purge** delete all unknown files in the
           repository in the same manner as the purge extension.
    
           Positional arguments like **$1** , **$2** , etc. in the alias definition
           expand to the command arguments. Unmatched arguments are removed.
           **$0** expands to the alias name and **$@** expands to all arguments
           separated by a space. **"$@"**(with quotes) expands to all arguments
           quoted individually and separated by a space. These expansions
           happen before the command is passed to the shell.
    
           Shell aliases are executed in an environment where **$HG** expands to
           the path of the Mercurial that was used to execute the alias. This
           is useful when you want to call further Mercurial commands in a
           shell alias, as was done above for the purge alias. In addition,
           **$HG_ARGS** expands to the arguments given to Mercurial. In the **hg**
           **echo foo** call above, **$HG_ARGS** would expand to **echo foo**.
    
           Note   Some global configuration options such as **-R** are processed
                  before shell aliases and will thus not be passed to
                  aliases.
    
       **annotate**
           Settings used when displaying file annotations. All values are
           Booleans and default to False. See **hg help config.diff** for related
           options for the diff command.
    
           **ignorews**
    
                  Ignore white space when comparing lines.
    
           **ignorewseol**
    
                  Ignore white space at the end of a line when comparing
                  lines.
    
           **ignorewsamount**
    
                  Ignore changes in the amount of white space.
    
           **ignoreblanklines**
    
                  Ignore changes whose lines are all blank.
    
       **auth**
           Authentication credentials and other authentication-like
           configuration for HTTP connections. This section allows you to
           store usernames and passwords for use when logging _into_ HTTP
           servers. See **hg help config.web** if you want to configure _who_ can
           login to your HTTP server.
    
           The following options apply to all hosts.
    
           **cookiefile**
    
                  Path to a file containing HTTP cookie lines. Cookies
                  matching a host will be sent automatically.
    
                  The file format uses the Mozilla cookies.txt format, which
                  defines cookies on their own lines. Each line contains 7
                  fields delimited by the tab character (domain,
                  is_domain_cookie, path, is_secure, expires, name, value).
                  For more info, do an Internet search for "Netscape
                  cookies.txt format."
    
                  Note: the cookies parser does not handle port numbers on
                  domains. You will need to remove ports from the domain for
                  the cookie to be recognized.  This could result in a cookie
                  being disclosed to an unwanted server.
    
                  The cookies file is read-only.
    
           Other options in this section are grouped by name and have the
           following format:
    
           <name>.<argument> = <value>
    
           where **< name> **is used to group arguments into authentication
           entries. Example:
    
           foo.prefix = hg.intevation.de/mercurial
           foo.username = foo
           foo.password = bar
           foo.schemes = http https
    
           bar.prefix = secure.example.org
           bar.key = path/to/file.key
           bar.cert = path/to/file.cert
           bar.schemes = https
    
           Supported arguments:
    
           **prefix**
    
                  Either ***** or a URI prefix with or without the scheme part.
                  The authentication entry with the longest matching prefix
                  is used (where ***** matches everything and counts as a match
                  of length 1). If the prefix doesn't include a scheme, the
                  match is performed against the URI with its scheme stripped
                  as well, and the schemes argument, q.v., is then
                  subsequently consulted.
    
           **username**
    
                  Optional. Username to authenticate with. If not given, and
                  the remote site requires basic or digest authentication,
                  the user will be prompted for it. Environment variables are
                  expanded in the username letting you do **foo.username =**
                  **$USER**. If the URI includes a username, only **[auth]** entries
                  with a matching username or without a username will be
                  considered.
    
           **password**
    
                  Optional. Password to authenticate with. If not given, and
                  the remote site requires basic or digest authentication,
                  the user will be prompted for it.
    
           **key**
    
                  Optional. PEM encoded client certificate key file.
                  Environment variables are expanded in the filename.
    
           **cert**
    
                  Optional. PEM encoded client certificate chain file.
                  Environment variables are expanded in the filename.
    
           **schemes**
    
                  Optional. Space separated list of URI schemes to use this
                  authentication entry with. Only used if the prefix doesn't
                  include a scheme. Supported schemes are http and https.
                  They will match static-http and static-https respectively,
                  as well.  (default: https)
    
           If no suitable authentication entry is found, the user is prompted
           for credentials as usual if required by the remote.
    
       **cmdserver**
           Controls command server settings. (ADVANCED)
    
           **message-encodings**
    
                  List of encodings for the **m**(message) channel. The first
                  encoding supported by the server will be selected and
                  advertised in the hello message. This is useful only when
                  **ui.message-output** is set to **channel**. Supported encodings
                  are **cbor**.
    
           **shutdown-on-interrupt**
    
                  If set to false, the server's main loop will continue
                  running after SIGINT received. **runcommand** requests can
                  still be interrupted by SIGINT. Close the write end of the
                  pipe to shut down the server process gracefully.  (default:
                  True)
    
       **color**
           Configure the Mercurial color mode. For details about how to
           define your custom effect and style see **hg help color**.
    
           **mode**
    
                  String: control the method used to output color. One of
                  **auto** , **ansi** , **win32** , **terminfo** or **debug**. In auto mode,
                  Mercurial will use ANSI mode by default (or win32 mode
                  prior to Windows 10) if it detects a terminal. Any invalid
                  value will disable color.
    
           **pagermode**
    
                  String: optional override of **color.mode** used with pager.
    
                  On some systems, terminfo mode may cause problems when
                  using color with **less -R** as a pager program. less with the
                  -R option will only display ECMA-48 color codes, and
                  terminfo mode may sometimes emit codes that less doesn't
                  understand. You can work around this by either using ansi
                  mode (or auto mode), or by using less -r (which will pass
                  through all terminal control codes, not just color control
                  codes).
    
                  On some systems (such as MSYS in Windows), the terminal may
                  support a different color mode than the pager program.
    
       **commands**
           **commit.post-status**
    
                  Show status of files in the working directory after
                  successful commit.  (default: False)
    
           **merge.require-rev**
    
                  Require that the revision to merge the current commit with
                  be specified on the command line. If this is enabled and a
                  revision is not specified, the command aborts.  (default:
                  False)
    
           **push.require-revs**
    
                  Require revisions to push be specified using one or more
                  mechanisms such as specifying them positionally on the
                  command line, using **-r** , **-b** , and/or **-B** on the command line,
                  or using **paths. <path>:pushrev **in the configuration. If this
                  is enabled and revisions are not specified, the command
                  aborts.  (default: False)
    
           **resolve.confirm**
    
                  Confirm before performing action if no filename is passed.
                  (default: False)
    
           **resolve.explicit-re-merge**
    
                  Require uses of **hg resolve** to specify which action it
                  should perform, instead of re-merging files by default.
                  (default: False)
    
           **resolve.mark-check**
    
                  Determines what level of checking **hg resolve --mark** will
                  perform before marking files as resolved. Valid values are
                  **none`, ``warn** , and **abort**. **warn** will output a warning
                  listing the file(s) that still have conflict markers in
                  them, but will still mark everything resolved.  **abort** will
                  output the same warning but will not mark things as
                  resolved.  If --all is passed and this is set to **abort** ,
                  only a warning will be shown (an error will not be raised).
                  (default: **none**)
    
           **status.relative**
    
                  Make paths in **hg status** output relative to the current
                  directory.  (default: False)
    
           **status.terse**
    
                  Default value for the --terse flag, which condenses status
                  output.  (default: empty)
    
           **update.check**
    
                  Determines what level of checking **hg update** will perform
                  before moving to a destination revision. Valid values are
                  **abort** , **none** , **linear** , and **noconflict**.
    
                  • **abort** always fails if the working directory has
                    uncommitted changes.
    
                  • **none** performs no checking, and may result in a merge with
                    uncommitted changes.
    
                  • **linear** allows any update as long as it follows a straight
                    line in the revision history, and may trigger a merge
                    with uncommitted changes.
    
                  • **noconflict** will allow any update which would not trigger
                    a merge with uncommitted changes, if any are present.
    
                  (default: **linear**)
    
           **update.requiredest**
    
                  Require that the user pass a destination when running **hg**
                  **update**.  For example, **hg update .::** will be allowed, but a
                  plain **hg update** will be disallowed.  (default: False)
    
       **committemplate**
           **changeset**
    
                  String: configuration in this section is used as the
                  template to customize the text shown in the editor when
                  committing.
    
           In addition to pre-defined template keywords, commit log specific
           one below can be used for customization:
    
           **extramsg**
    
                  String: Extra message (typically 'Leave message empty to
                  abort commit.'). This may be changed by some commands or
                  extensions.
    
           For example, the template configuration below shows as same text
           as one shown by default:
    
           [committemplate]
           changeset = {desc}\n\n
               HG: Enter commit message.  Lines beginning with 'HG:' are removed.
               HG: {extramsg}
               HG: --
               HG: user: {author}\n{ifeq(p2rev, "-1", "",
              "HG: branch merge\n")
              }HG: branch '{branch}'\n{if(activebookmark,
              "HG: bookmark '{activebookmark}'\n")   }{subrepos %
              "HG: subrepo {subrepo}\n"              }{file_adds %
              "HG: added {file}\n"                   }{file_mods %
              "HG: changed {file}\n"                 }{file_dels %
              "HG: removed {file}\n"                 }{if(files, "",
              "HG: no files changed\n")}
    
           **diff()**
    
                  String: show the diff (see **hg help templates** for detail)
    
           Sometimes it is helpful to show the diff of the changeset in the
           editor without having to prefix 'HG: ' to each line so that
           highlighting works correctly. For this, Mercurial provides a
           special string which will ignore everything below it:
    
           HG: ------------------------ >8 ------------------------
    
           For example, the template configuration below will show the diff
           below the extra message:
    
           [committemplate]
           changeset = {desc}\n\n
               HG: Enter commit message.  Lines beginning with 'HG:' are removed.
               HG: {extramsg}
               HG: ------------------------ >8 ------------------------
               HG: Do not touch the line above.
               HG: Everything below will be removed.
               {diff()}
    
           Note   For some problematic encodings (see **hg help win32mbcs** for
                  detail), this customization should be configured carefully,
                  to avoid showing broken characters.
    
                  For example, if a multibyte character ending with backslash
                  (0x5c) is followed by the ASCII character 'n' in the
                  customized template, the sequence of backslash and 'n' is
                  treated as line-feed unexpectedly (and the multibyte
                  character is broken, too).
    
           Customized template is used for commands below (**--edit** may be
           required):
    
           • **hg backout**
    
           • **hg commit**
    
           • **hg fetch**(for merge commit only)
    
           • **hg graft**
    
           • **hg histedit**
    
           • **hg import**
    
           • **hg qfold** , **hg qnew** and **hg qrefresh**
    
           • **hg rebase**
    
           • **hg shelve**
    
           • **hg sign**
    
           • **hg tag**
    
           • **hg transplant**
    
           Configuring items below instead of **changeset** allows showing
           customized message only for specific actions, or showing different
           messages for each action.
    
           • **changeset.backout** for **hg backout**
    
           • **changeset.commit.amend.merge** for **hg commit --amend** on merges
    
           • **changeset.commit.amend.normal** for **hg commit --amend** on other
    
           • **changeset.commit.normal.merge** for **hg commit** on merges
    
           • **changeset.commit.normal.normal** for **hg commit** on other
    
           • **changeset.fetch** for **hg fetch**(impling merge commit)
    
           • **changeset.gpg.sign** for **hg sign**
    
           • **changeset.graft** for **hg graft**
    
           • **changeset.histedit.edit** for **edit** of **hg histedit**
    
           • **changeset.histedit.fold** for **fold** of **hg histedit**
    
           • **changeset.histedit.mess** for **mess** of **hg histedit**
    
           • **changeset.histedit.pick** for **pick** of **hg histedit**
    
           • **changeset.import.bypass** for **hg import --bypass**
    
           • **changeset.import.normal.merge** for **hg import** on merges
    
           • **changeset.import.normal.normal** for **hg import** on other
    
           • **changeset.mq.qnew** for **hg qnew**
    
           • **changeset.mq.qfold** for **hg qfold**
    
           • **changeset.mq.qrefresh** for **hg qrefresh**
    
           • **changeset.rebase.collapse** for **hg rebase --collapse**
    
           • **changeset.rebase.merge** for **hg rebase** on merges
    
           • **changeset.rebase.normal** for **hg rebase** on other
    
           • **changeset.shelve.shelve** for **hg shelve**
    
           • **changeset.tag.add** for **hg tag** without **--remove**
    
           • **changeset.tag.remove** for **hg tag --remove**
    
           • **changeset.transplant.merge** for **hg transplant** on merges
    
           • **changeset.transplant.normal** for **hg transplant** on other
    
           These dot-separated lists of names are treated as hierarchical
           ones.  For example, **changeset.tag.remove** customizes the commit
           message only for **hg tag --remove** , but **changeset.tag** customizes the
           commit message for **hg tag** regardless of **--remove** option.
    
           When the external editor is invoked for a commit, the
           corresponding dot-separated list of names without the **changeset.**
           prefix (e.g. **commit.normal.normal**) is in the **HGEDITFORM**
           environment variable.
    
           In this section, items other than **changeset** can be referred from
           others. For example, the configuration to list committed files up
           below can be referred as **{listupfiles}** :
    
           [committemplate]
           listupfiles = {file_adds %
              "HG: added {file}\n"     }{file_mods %
              "HG: changed {file}\n"   }{file_dels %
              "HG: removed {file}\n"   }{if(files, "",
              "HG: no files changed\n")}
    
       **decode/encode**
           Filters for transforming files on checkout/checkin. This would
           typically be used for newline processing or other
           localization/canonicalization of files.
    
           Filters consist of a filter pattern followed by a filter command.
           Filter patterns are globs by default, rooted at the repository
           root.  For example, to match any file ending in **.txt** in the root
           directory only, use the pattern ***.txt**. To match any file ending in
           **.c** anywhere in the repository, use the pattern ****.c**.  For each
           file only the first matching filter applies.
    
           The filter command can start with a specifier, either **pipe:** or
           **tempfile:**. If no specifier is given, **pipe:** is used by default.
    
           A **pipe:** command must accept data on stdin and return the
           transformed data on stdout.
    
           Pipe example:
    
           [encode]
           # uncompress gzip files on checkin to improve delta compression
           # note: not necessarily a good idea, just an example
           *.gz = pipe: gunzip
    
           [decode]
           # recompress gzip files when writing them to the working dir (we
           # can safely omit "pipe:", because it's the default)
           *.gz = gzip
    
           A **tempfile:** command is a template. The string **INFILE** is replaced
           with the name of a temporary file that contains the data to be
           filtered by the command. The string **OUTFILE** is replaced with the
           name of an empty temporary file, where the filtered data must be
           written by the command.
    
           Note   The tempfile mechanism is recommended for Windows systems,
                  where the standard shell I/O redirection operators often
                  have strange effects and may corrupt the contents of your
                  files.
    
           This filter mechanism is used internally by the **eol** extension to
           translate line ending characters between Windows (CRLF) and Unix
           (LF) format. We suggest you use the **eol** extension for convenience.
    
       **defaults**
           (defaults are deprecated. Don't use them. Use aliases instead.)
    
           Use the **[defaults]** section to define command defaults, i.e. the
           default options/arguments to pass to the specified commands.
    
           The following example makes **hg log** run in verbose mode, and **hg**
           **status** show only the modified files, by default:
    
           [defaults]
           log = -v
           status = -m
    
           The actual commands, instead of their aliases, must be used when
           defining command defaults. The command defaults will also be
           applied to the aliases of the commands defined.
    
       **diff**
           Settings used when displaying diffs. Everything except for **unified**
           is a Boolean and defaults to False. See **hg help config.annotate**
           for related options for the annotate command.
    
           **git**
    
                  Use git extended diff format.
    
           **nobinary**
    
                  Omit git binary patches.
    
           **nodates**
    
                  Don't include dates in diff headers.
    
           **noprefix**
    
                  Omit 'a/' and 'b/' prefixes from filenames. Ignored in
                  plain mode.
    
           **showfunc**
    
                  Show which function each change is in.
    
           **ignorews**
    
                  Ignore white space when comparing lines.
    
           **ignorewsamount**
    
                  Ignore changes in the amount of white space.
    
           **ignoreblanklines**
    
                  Ignore changes whose lines are all blank.
    
           **unified**
    
                  Number of lines of context to show.
    
           **word-diff**
    
                  Highlight changed words.
    
       **email**
           Settings for extensions that send email messages.
    
           **from**
    
                  Optional. Email address to use in "From" header and SMTP
                  envelope of outgoing messages.
    
           **to**
    
                  Optional. Comma-separated list of recipients' email
                  addresses.
    
           **cc**
    
                  Optional. Comma-separated list of carbon copy recipients'
                  email addresses.
    
           **bcc**
    
                  Optional. Comma-separated list of blind carbon copy
                  recipients' email addresses.
    
           **method**
    
                  Optional. Method to use to send email messages. If value is
                  **smtp**(default), use SMTP (see the **[smtp]** section for
                  configuration).  Otherwise, use as name of program to run
                  that acts like sendmail (takes **-f** option for sender, list
                  of recipients on command line, message on stdin). Normally,
                  setting this to **sendmail** or **/usr/sbin/sendmail** is enough to
                  use sendmail to send messages.
    
           **charsets**
    
                  Optional. Comma-separated list of character sets considered
                  convenient for recipients. Addresses, headers, and parts
                  not containing patches of outgoing messages will be encoded
                  in the first character set to which conversion from local
                  encoding (**$HGENCODING** , **ui.fallbackencoding**) succeeds. If
                  correct conversion fails, the text in question is sent as
                  is.  (default: '')
    
                  Order of outgoing email character sets:
    
                  1. **us-ascii** : always first, regardless of settings
    
                  2. **email.charsets** : in order given by user
    
                  3. **ui.fallbackencoding** : if not in email.charsets
    
                  4. **$HGENCODING** : if not in email.charsets
    
                  5. **utf-8** : always last, regardless of settings
    
           Email example:
    
           [email]
           from = Joseph User <joe.user@example.com>
           method = /usr/sbin/sendmail
           # charsets for western Europeans
           # us-ascii, utf-8 omitted, as they are tried first and last
           charsets = iso-8859-1, iso-8859-15, windows-1252
    
       **extensions**
           Mercurial has an extension mechanism for adding new features. To
           enable an extension, create an entry for it in this section.
    
           If you know that the extension is already in Python's search path,
           you can give the name of the module, followed by **=** , with nothing
           after the **=**.
    
           Otherwise, give a name that you choose, followed by **=** , followed by
           the path to the **.py** file (including the file name extension) that
           defines the extension.
    
           To explicitly disable an extension that is enabled in an hgrc of
           broader scope, prepend its path with **!** , as in **foo = !/ext/path** or
           **foo = !** when path is not supplied.
    
           Example for **~/.hgrc** :
    
           [extensions]
           # (the churn extension will get loaded from Mercurial's path)
           churn =
           # (this extension will get loaded from the file specified)
           myfeature = ~/.hgext/myfeature.py
    
           If an extension fails to load, a warning will be issued, and
           Mercurial will proceed. To enforce that an extension must be
           loaded, one can set the _required_ suboption in the config:
    
           [extensions]
           myfeature = ~/.hgext/myfeature.py
           myfeature:required = yes
    
           To debug extension loading issue, one can add _--traceback_ to their
           mercurial invocation.
    
           A default setting can we set using the special _*_ extension key:
    
           [extensions]
           *:required = yes
           myfeature = ~/.hgext/myfeature.py
           rebase=
    
       **format**
           Configuration that controls the repository format. Newer format
           options are more powerful, but incompatible with some older
           versions of Mercurial. Format options are considered at repository
           initialization only. You need to make a new clone for config
           changes to be taken into account.
    
           For more details about repository format and version
           compatibility, see
           https://www.mercurial-scm.org/wiki/MissingRequirement
    
           **usegeneraldelta**
    
                  Enable or disable the "generaldelta" repository format
                  which improves repository compression by allowing "revlog"
                  to store deltas against arbitrary revisions instead of the
                  previously stored one. This provides significant
                  improvement for repositories with branches.
    
                  Repositories with this on-disk format require Mercurial
                  version 1.9.
    
                  Enabled by default.
    
           **dotencode**
    
                  Enable or disable the "dotencode" repository format which
                  enhances the "fncache" repository format (which has to be
                  enabled to use dotencode) to avoid issues with filenames
                  starting with "._" on Mac OS X and spaces on Windows.
    
                  Repositories with this on-disk format require Mercurial
                  version 1.7.
    
                  Enabled by default.
    
           **usefncache**
    
                  Enable or disable the "fncache" repository format which
                  enhances the "store" repository format (which has to be
                  enabled to use fncache) to allow longer filenames and
                  avoids using Windows reserved names, e.g. "nul".
    
                  Repositories with this on-disk format require Mercurial
                  version 1.1.
    
                  Enabled by default.
    
           **use-dirstate-v2**
    
                  Enable or disable the experimental "dirstate-v2" feature.
                  The dirstate functionality is shared by all commands
                  interacting with the working copy.  The new version is more
                  robust, faster and stores more information.
    
                  The performance-improving version of this feature is
                  currently only implemented in Rust (see **hg help rust**), so
                  people not using a version of Mercurial compiled with the
                  Rust parts might actually suffer some slowdown.  For this
                  reason, such versions will by default refuse to access
                  repositories with "dirstate-v2" enabled.
    
                  This behavior can be adjusted via configuration: check **hg**
                  **help config.storage.dirstate-v2.slow-path** for details.
    
                  Repositories with this on-disk format require Mercurial 6.0
                  or above.
    
                  By default this format variant is disabled if the fast
                  implementation is not available, and enabled by default if
                  the fast implementation is available.
    
                  To accomodate installations of Mercurial without the fast
                  implementation, you can downgrade your repository. To do so
                  run the following command:
    
                  **$ hg debugupgraderepo**
                         --run --config format.use-dirstate-v2=False --config
                         storage.dirstate-v2.slow-path=allow
    
                  For a more comprehensive guide, see **hg help**
                  **internals.dirstate-v2**.
    
           **use-dirstate-v2.automatic-upgrade-of-mismatching-repositories**
    
                  When enabled, an automatic upgrade will be triggered when a
                  repository format does not match its _use-dirstate-v2_
                  config.
    
                  This is an advanced behavior that most users will not need.
                  We recommend you don't use this unless you are a seasoned
                  administrator of a Mercurial install base.
    
                  Automatic upgrade means that any process accessing the
                  repository will upgrade the repository format to use
                  _dirstate-v2_. This only triggers if a change is needed. This
                  also applies to operations that would have been read-only
                  (like hg status).
    
                  If the repository cannot be locked, the automatic-upgrade
                  operation will be skipped. The next operation will attempt
                  it again.
    
                  This configuration will apply for moves in any direction,
                  either adding the _dirstate-v2_ format if
                  _format.use-dirstate-v2=yes_ or removing the _dirstate-v2_
                  requirement if _format.use-dirstate-v2=no_. So we recommend
                  setting both this value and _format.use-dirstate-v2_ at the
                  same time.
    
           **use-dirstate-tracked-hint**
    
                  Enable or disable the writing of "tracked key" file
                  alongside the dirstate.  (default to disabled)
    
                  That "tracked-hint" can help external automations to detect
                  changes to the set of tracked files. (i.e the result of _hg_
                  _files_ or _hg status -macd_)
    
                  The tracked-hint is written in a new
                  _.hg/dirstate-tracked-hint_. That file contains two lines: -
                  the first line is the file version (currently: 1), - the
                  second line contains the "tracked-hint".  That file is
                  written right after the dirstate is written.
    
                  The tracked-hint changes whenever the set of file tracked
                  in the dirstate changes. The general idea is: - if the hint
                  is identical, the set of tracked file SHOULD be identical,
                  - if the hint is different, the set of tracked file MIGHT
                  be different.
    
                  The "hint is identical" case uses _SHOULD_ as the dirstate
                  and the hint file are two distinct files and therefore that
                  cannot be read or written to in an atomic way. If the key
                  is identical, nothing garantees that the dirstate is not
                  updated right after the hint file. This is considered a
                  negligible limitation for the intended usecase. It is
                  actually possible to prevent this race by taking the
                  repository lock during read operations.
    
                  They are two "ways" to use this feature:
    
                  1) monitoring changes to the _.hg/dirstate-tracked-hint_ , if
                  the file changes, the tracked set might have changed.
    
                  2. storing the value and comparing it to a later value.
    
           **use-dirstate-tracked-hint.automatic-upgrade-of-mismatching-repositories**
    
                  When enabled, an automatic upgrade will be triggered when a
                  repository format does not match its
                  _use-dirstate-tracked-hint_ config.
    
                  This is an advanced behavior that most users will not need.
                  We recommend you don't use this unless you are a seasoned
                  administrator of a Mercurial install base.
    
                  Automatic upgrade means that any process accessing the
                  repository will upgrade the repository format to use
                  _dirstate-tracked-hint_. This only triggers if a change is
                  needed. This also applies to operations that would have
                  been read-only (like hg status).
    
                  If the repository cannot be locked, the automatic-upgrade
                  operation will be skipped. The next operation will attempt
                  it again.
    
                  This configuration will apply for moves in any direction,
                  either adding the _dirstate-tracked-hint_ format if
                  _format.use-dirstate-tracked-hint=yes_ or removing the
                  _dirstate-tracked-hint_ requirement if
                  _format.use-dirstate-tracked-hint=no_. So we recommend
                  setting both this value and
                  _format.use-dirstate-tracked-hint_ at the same time.
    
           **use-persistent-nodemap**
    
                  Enable or disable the "persistent-nodemap" feature which
                  improves performance if the Rust extensions are available.
    
                  The "persistent-nodemap" persist the "node -> rev" on disk
                  removing the need to dynamically build that mapping for
                  each Mercurial invocation. This significantly reduces the
                  startup cost of various local and server-side operation for
                  larger repositories.
    
                  The performance-improving version of this feature is
                  currently only implemented in Rust (see **hg help rust**), so
                  people not using a version of Mercurial compiled with the
                  Rust parts might actually suffer some slowdown.  For this
                  reason, such versions will by default refuse to access
                  repositories with "persistent-nodemap".
    
                  This behavior can be adjusted via configuration: check **hg**
                  **help config.storage.revlog.persistent-nodemap.slow-path** for
                  details.
    
                  Repositories with this on-disk format require Mercurial 5.4
                  or above.
    
                  By default this format variant is disabled if the fast
                  implementation is not available, and enabled by default if
                  the fast implementation is available.
    
                  To accomodate installations of Mercurial without the fast
                  implementation, you can downgrade your repository. To do so
                  run the following command:
    
                  **$ hg debugupgraderepo**
                         --run --config format.use-persistent-nodemap=False
                         --config
                         storage.revlog.persistent-nodemap.slow-path=allow
    
           **use-share-safe**
    
                  Enforce "safe" behaviors for all "shares" that access this
                  repository.
    
                  With this feature, "shares" using this repository as a
                  source will:
    
                  • read the source repository's configuration
                    (_< source>/.hg/hgrc_).
    
                  • read and use the source repository's "requirements"
                    (except the working copy specific one).
    
                  Without this feature, "shares" using this repository as a
                  source will:
    
                  • keep tracking the repository "requirements" in the share
                    only, ignoring the source "requirements", possibly
                    diverging from them.
    
                  • ignore source repository config. This can create
                    problems, like silently ignoring important hooks.
    
                  Beware that existing shares will not be
                  upgraded/downgraded, and by default, Mercurial will refuse
                  to interact with them until the mismatch is resolved. See
                  **hg help config.share.safe-mismatch.source-safe** and **hg help**
                  **config.share.safe-mismatch.source-not-safe** for details.
    
                  Introduced in Mercurial 5.7.
    
                  Enabled by default in Mercurial 6.1.
    
           **use-share-safe.automatic-upgrade-of-mismatching-repositories**
    
                  When enabled, an automatic upgrade will be triggered when a
                  repository format does not match its _use-share-safe_ config.
    
                  This is an advanced behavior that most users will not need.
                  We recommend you don't use this unless you are a seasoned
                  administrator of a Mercurial install base.
    
                  Automatic upgrade means that any process accessing the
                  repository will upgrade the repository format to use
                  _share-safe_. This only triggers if a change is needed. This
                  also applies to operation that would have been read-only
                  (like hg status).
    
                  If the repository cannot be locked, the automatic-upgrade
                  operation will be skipped. The next operation will attempt
                  it again.
    
                  This configuration will apply for moves in any direction,
                  either adding the _share-safe_ format if
                  _format.use-share-safe=yes_ or removing the _share-safe_
                  requirement if _format.use-share-safe=no_. So we recommend
                  setting both this value and _format.use-share-safe_ at the
                  same time.
    
           **usestore**
    
                  Enable or disable the "store" repository format which
                  improves compatibility with systems that fold case or
                  otherwise mangle filenames. Disabling this option will
                  allow you to store longer filenames in some situations at
                  the expense of compatibility.
    
                  Repositories with this on-disk format require Mercurial
                  version 0.9.4.
    
                  Enabled by default.
    
           **sparse-revlog**
    
                  Enable or disable the **sparse-revlog** delta strategy. This
                  format improves delta re-use inside revlog. For very
                  branchy repositories, it results in a smaller store. For
                  repositories with many revisions, it also helps performance
                  (by using shortened delta chains.)
    
                  Repositories with this on-disk format require Mercurial
                  version 4.7
    
                  Enabled by default.
    
           **revlog-compression**
    
                  Compression algorithm used by revlog. Supported values are
                  _zlib_ and _zstd_. The _zlib_ engine is the historical default of
                  Mercurial. _zstd_ is a newer format that is usually a net win
                  over _zlib_ , operating faster at better compression rates.
                  Use _zstd_ to reduce CPU usage. Multiple values can be
                  specified, the first available one will be used.
    
                  On some systems, the Mercurial installation may lack _zstd_
                  support.
    
                  Default is _zstd_ if available, _zlib_ otherwise.
    
           **bookmarks-in-store**
    
                  Store bookmarks in .hg/store/. This means that bookmarks
                  are shared when using _hg share_ regardless of the _-B_ option.
    
                  Repositories with this on-disk format require Mercurial
                  version 5.1.
    
                  Disabled by default.
    
       **graph**
           Web graph view configuration. This section let you change graph
           elements display properties by branches, for instance to make the
           **default** branch stand out.
    
           Each line has the following format:
    
           <branch>.<argument> = <value>
    
           where **< branch> **is the name of the branch being customized.
           Example:
    
           [graph]
           # 2px width
           default.width = 2
           # red color
           default.color = FF0000
    
           Supported arguments:
    
           **width**
    
                  Set branch edges width in pixels.
    
           **color**
    
                  Set branch edges color in hexadecimal RGB notation.
    
       **hooks**
           Commands or Python functions that get automatically executed by
           various actions such as starting or finishing a commit. Multiple
           hooks can be run for the same action by appending a suffix to the
           action. Overriding a site-wide hook can be done by changing its
           value or setting it to an empty string.  Hooks can be prioritized
           by adding a prefix of **priority.** to the hook name on a new line and
           setting the priority. The default priority is 0.
    
           Example **.hg/hgrc** :
    
           [hooks]
           # update working directory after adding changesets
           changegroup.update = hg update
           # do not use the site-wide hook
           incoming =
           incoming.email = /my/email/hook
           incoming.autobuild = /my/build/hook
           # force autobuild hook to run before other incoming hooks
           priority.incoming.autobuild = 1
           ###  control HGPLAIN setting when running autobuild hook
           # HGPLAIN always set (default from Mercurial 5.7)
           incoming.autobuild:run-with-plain = yes
           # HGPLAIN never set
           incoming.autobuild:run-with-plain = no
           # HGPLAIN inherited from environment (default before Mercurial 5.7)
           incoming.autobuild:run-with-plain = auto
    
           Most hooks are run with environment variables set that give useful
           additional information. For each hook below, the environment
           variables it is passed are listed with names in the form **$HG_foo**.
           The **$HG_HOOKTYPE** and **$HG_HOOKNAME** variables are set for all hooks.
           They contain the type of hook which triggered the run and the full
           name of the hook in the config, respectively. In the example
           above, this will be **$HG_HOOKTYPE=incoming** and
           **$HG_HOOKNAME=incoming.email**.
    
           Some basic Unix syntax can be enabled for portability, including
           **$VAR** and **${VAR}** style variables.  A **~** followed by **\** or **/** will be
           expanded to **%USERPROFILE%** to simulate a subset of tilde expansion
           on Unix.  To use a literal **$** or **~** , it must be escaped with a back
           slash or inside of a strong quote.  Strong quotes will be replaced
           by double quotes after processing.
    
           This feature is enabled by adding a prefix of **tonative.** to the
           hook name on a new line, and setting it to **True**.  For example:
    
           [hooks]
           incoming.autobuild = /my/build/hook
           # enable translation to cmd.exe syntax for autobuild hook
           tonative.incoming.autobuild = True
    
           **changegroup**
    
                  Run after a changegroup has been added via push, pull or
                  unbundle.  The ID of the first new changeset is in **$HG_NODE**
                  and last is in **$HG_NODE_LAST**.  The URL from which changes
                  came is in **$HG_URL**.
    
           **commit**
    
                  Run after a changeset has been created in the local
                  repository. The ID of the newly created changeset is in
                  **$HG_NODE**. Parent changeset IDs are in **$HG_PARENT1** and
                  **$HG_PARENT2**.
    
           **incoming**
    
                  Run after a changeset has been pulled, pushed, or unbundled
                  into the local repository. The ID of the newly arrived
                  changeset is in **$HG_NODE**. The URL that was source of the
                  changes is in **$HG_URL**.
    
           **outgoing**
    
                  Run after sending changes from the local repository to
                  another. The ID of first changeset sent is in **$HG_NODE**. The
                  source of operation is in **$HG_SOURCE**. Also see **hg help**
                  **config.hooks.preoutgoing**.
    
           **post- <command>**
    
                  Run after successful invocations of the associated command.
                  The contents of the command line are passed as **$HG_ARGS** and
                  the result code in **$HG_RESULT**. Parsed command line
                  arguments are passed as **$HG_PATS** and **$HG_OPTS**. These
                  contain string representations of the python data
                  internally passed to <command>. **$HG_OPTS** is a dictionary of
                  options (with unspecified options set to their defaults).
                  **$HG_PATS** is a list of arguments. Hook failure is ignored.
    
           **fail- <command>**
    
                  Run after a failed invocation of an associated command. The
                  contents of the command line are passed as **$HG_ARGS**. Parsed
                  command line arguments are passed as **$HG_PATS** and **$HG_OPTS**.
                  These contain string representations of the python data
                  internally passed to <command>. **$HG_OPTS** is a dictionary of
                  options (with unspecified options set to their defaults).
                  **$HG_PATS** is a list of arguments.  Hook failure is ignored.
    
           **pre- <command>**
    
                  Run before executing the associated command. The contents
                  of the command line are passed as **$HG_ARGS**. Parsed command
                  line arguments are passed as **$HG_PATS** and **$HG_OPTS**. These
                  contain string representations of the data internally
                  passed to <command>. **$HG_OPTS** is a dictionary of options
                  (with unspecified options set to their defaults). **$HG_PATS**
                  is a list of arguments. If the hook returns failure, the
                  command doesn't execute and Mercurial returns the failure
                  code.
    
           **prechangegroup**
    
                  Run before a changegroup is added via push, pull or
                  unbundle. Exit status 0 allows the changegroup to proceed.
                  A non-zero status will cause the push, pull or unbundle to
                  fail. The URL from which changes will come is in **$HG_URL**.
    
           **precommit**
    
                  Run before starting a local commit. Exit status 0 allows
                  the commit to proceed. A non-zero status will cause the
                  commit to fail.  Parent changeset IDs are in **$HG_PARENT1**
                  and **$HG_PARENT2**.
    
           **prelistkeys**
    
                  Run before listing pushkeys (like bookmarks) in the
                  repository. A non-zero status will cause failure. The key
                  namespace is in **$HG_NAMESPACE**.
    
           **preoutgoing**
    
                  Run before collecting changes to send from the local
                  repository to another. A non-zero status will cause
                  failure. This lets you prevent pull over HTTP or SSH. It
                  can also prevent propagating commits (via local pull, push
                  (outbound) or bundle commands), but not completely, since
                  you can just copy files instead. The source of operation is
                  in **$HG_SOURCE**. If "serve", the operation is happening on
                  behalf of a remote SSH or HTTP repository. If "push",
                  "pull" or "bundle", the operation is happening on behalf of
                  a repository on same system.
    
           **prepushkey**
    
                  Run before a pushkey (like a bookmark) is added to the
                  repository. A non-zero status will cause the key to be
                  rejected. The key namespace is in **$HG_NAMESPACE** , the key is
                  in **$HG_KEY** , the old value (if any) is in **$HG_OLD** , and the
                  new value is in **$HG_NEW**.
    
           **pretag**
    
                  Run before creating a tag. Exit status 0 allows the tag to
                  be created. A non-zero status will cause the tag to fail.
                  The ID of the changeset to tag is in **$HG_NODE**. The name of
                  tag is in **$HG_TAG**. The tag is local if **$HG_LOCAL=1** , or in
                  the repository if **$HG_LOCAL=0**.
    
           **pretxnopen**
    
                  Run before any new repository transaction is open. The
                  reason for the transaction will be in **$HG_TXNNAME** , and a
                  unique identifier for the transaction will be in **$HG_TXNID**.
                  A non-zero status will prevent the transaction from being
                  opened.
    
           **pretxnclose**
    
                  Run right before the transaction is actually finalized. Any
                  repository change will be visible to the hook program. This
                  lets you validate the transaction content or change it.
                  Exit status 0 allows the commit to proceed. A non-zero
                  status will cause the transaction to be rolled back. The
                  reason for the transaction opening will be in **$HG_TXNNAME** ,
                  and a unique identifier for the transaction will be in
                  **$HG_TXNID**. The rest of the available data will vary
                  according the transaction type.  Changes unbundled to the
                  repository will add **$HG_URL** and **$HG_SOURCE**.  New changesets
                  will add **$HG_NODE**(the ID of the first added changeset),
                  **$HG_NODE_LAST**(the ID of the last added changeset).
                  Bookmark and phase changes will set **$HG_BOOKMARK_MOVED** and
                  **$HG_PHASES_MOVED** to **1** respectively.  The number of new
                  obsmarkers, if any, will be in **$HG_NEW_OBSMARKERS** , etc.
    
           **pretxnclose-bookmark**
    
                  Run right before a bookmark change is actually finalized.
                  Any repository change will be visible to the hook program.
                  This lets you validate the transaction content or change
                  it. Exit status 0 allows the commit to proceed. A non-zero
                  status will cause the transaction to be rolled back.  The
                  name of the bookmark will be available in **$HG_BOOKMARK** , the
                  new bookmark location will be available in **$HG_NODE** while
                  the previous location will be available in **$HG_OLDNODE**. In
                  case of a bookmark creation **$HG_OLDNODE** will be empty. In
                  case of deletion **$HG_NODE** will be empty.  In addition, the
                  reason for the transaction opening will be in **$HG_TXNNAME** ,
                  and a unique identifier for the transaction will be in
                  **$HG_TXNID**.
    
           **pretxnclose-phase**
    
                  Run right before a phase change is actually finalized. Any
                  repository change will be visible to the hook program. This
                  lets you validate the transaction content or change it.
                  Exit status 0 allows the commit to proceed.  A non-zero
                  status will cause the transaction to be rolled back. The
                  hook is called multiple times, once for each revision
                  affected by a phase change.  The affected node is available
                  in **$HG_NODE** , the phase in **$HG_PHASE** while the previous
                  **$HG_OLDPHASE**. In case of new node, **$HG_OLDPHASE** will be
                  empty.  In addition, the reason for the transaction opening
                  will be in **$HG_TXNNAME** , and a unique identifier for the
                  transaction will be in **$HG_TXNID**. The hook is also run for
                  newly added revisions. In this case the **$HG_OLDPHASE** entry
                  will be empty.
    
           **txnclose**
    
                  Run after any repository transaction has been committed. At
                  this point, the transaction can no longer be rolled back.
                  The hook will run after the lock is released. See **hg help**
                  **config.hooks.pretxnclose** for details about available
                  variables.
    
           **txnclose-bookmark**
    
                  Run after any bookmark change has been committed. At this
                  point, the transaction can no longer be rolled back. The
                  hook will run after the lock is released. See **hg help**
                  **config.hooks.pretxnclose-bookmark** for details about
                  available variables.
    
           **txnclose-phase**
    
                  Run after any phase change has been committed. At this
                  point, the transaction can no longer be rolled back. The
                  hook will run after the lock is released. See **hg help**
                  **config.hooks.pretxnclose-phase** for details about available
                  variables.
    
           **txnabort**
    
                  Run when a transaction is aborted. See **hg help**
                  **config.hooks.pretxnclose** for details about available
                  variables.
    
           **pretxnchangegroup**
    
                  Run after a changegroup has been added via push, pull or
                  unbundle, but before the transaction has been committed.
                  The changegroup is visible to the hook program. This allows
                  validation of incoming changes before accepting them.  The
                  ID of the first new changeset is in **$HG_NODE** and last is in
                  **$HG_NODE_LAST**. Exit status 0 allows the transaction to
                  commit. A non-zero status will cause the transaction to be
                  rolled back, and the push, pull or unbundle will fail. The
                  URL that was the source of changes is in **$HG_URL**.
    
           **pretxncommit**
    
                  Run after a changeset has been created, but before the
                  transaction is committed. The changeset is visible to the
                  hook program. This allows validation of the commit message
                  and changes. Exit status 0 allows the commit to proceed. A
                  non-zero status will cause the transaction to be rolled
                  back. The ID of the new changeset is in **$HG_NODE**. The
                  parent changeset IDs are in **$HG_PARENT1** and **$HG_PARENT2**.
    
           **preupdate**
    
                  Run before updating the working directory. Exit status 0
                  allows the update to proceed. A non-zero status will
                  prevent the update.  The changeset ID of first new parent
                  is in **$HG_PARENT1**. If updating to a merge, the ID of second
                  new parent is in **$HG_PARENT2**.
    
           **listkeys**
    
                  Run after listing pushkeys (like bookmarks) in the
                  repository. The key namespace is in **$HG_NAMESPACE**.
                  **$HG_VALUES** is a dictionary containing the keys and values.
    
           **pushkey**
    
                  Run after a pushkey (like a bookmark) is added to the
                  repository. The key namespace is in **$HG_NAMESPACE** , the key
                  is in **$HG_KEY** , the old value (if any) is in **$HG_OLD** , and
                  the new value is in **$HG_NEW**.
    
           **tag**
    
                  Run after a tag is created. The ID of the tagged changeset
                  is in **$HG_NODE**.  The name of tag is in **$HG_TAG**. The tag is
                  local if **$HG_LOCAL=1** , or in the repository if **$HG_LOCAL=0**.
    
           **update**
    
                  Run after updating the working directory. The changeset ID
                  of first new parent is in **$HG_PARENT1**. If updating to a
                  merge, the ID of second new parent is in **$HG_PARENT2**. If
                  the update succeeded, **$HG_ERROR=0**. If the update failed
                  (e.g. because conflicts were not resolved), **$HG_ERROR=1**.
    
           Note   It is generally better to use standard hooks rather than
                  the generic pre- and post- command hooks, as they are
                  guaranteed to be called in the appropriate contexts for
                  influencing transactions.  Also, hooks like "commit" will
                  be called in all contexts that generate a commit (e.g. tag)
                  and not just the commit command.
    
           Note   Environment variables with empty values may not be passed
                  to hooks on platforms such as Windows. As an example,
                  **$HG_PARENT2** will have an empty value under Unix-like
                  platforms for non-merge changesets, while it will not be
                  available at all under Windows.
    
           The syntax for Python hooks is as follows:
    
           hookname = python:modulename.submodule.callable
           hookname = python:/path/to/python/module.py:callable
    
           Python hooks are run within the Mercurial process. Each hook is
           called with at least three keyword arguments: a ui object (keyword
           **ui**), a repository object (keyword **repo**), and a **hooktype** keyword
           that tells what kind of hook is used. Arguments listed as
           environment variables above are passed as keyword arguments, with
           no **HG_** prefix, and names in lower case.
    
           If a Python hook returns a "true" value or raises an exception,
           this is treated as a failure.
    
       **hostfingerprints**
           (Deprecated. Use **[hostsecurity]** 's **fingerprints** options instead.)
    
           Fingerprints of the certificates of known HTTPS servers.
    
           A HTTPS connection to a server with a fingerprint configured here
           will only succeed if the servers certificate matches the
           fingerprint.  This is very similar to how ssh known hosts works.
    
           The fingerprint is the SHA-1 hash value of the DER encoded
           certificate.  Multiple values can be specified (separated by
           spaces or commas). This can be used to define both old and new
           fingerprints while a host transitions to a new certificate.
    
           The CA chain and web.cacerts is not used for servers with a
           fingerprint.
    
           For example:
    
           [hostfingerprints]
           hg.intevation.de = fc:e2:8d:d9:51:cd:cb:c1:4d:18:6b:b7:44:8d:49:72:57:e6:cd:33
           hg.intevation.org = fc:e2:8d:d9:51:cd:cb:c1:4d:18:6b:b7:44:8d:49:72:57:e6:cd:33
    
       **hostsecurity**
           Used to specify global and per-host security settings for
           connecting to other machines.
    
           The following options control default behavior for all hosts.
    
           **ciphers**
    
                  Defines the cryptographic ciphers to use for connections.
    
                  Value must be a valid OpenSSL Cipher List Format as
                  documented at
                  https://www.openssl.org/docs/manmaster/apps/ciphers.html#CIPHER-LIST-FORMAT.
    
                  This setting is for advanced users only. Setting to
                  incorrect values can significantly lower connection
                  security or decrease performance.  You have been warned.
    
                  This option requires Python 2.7.
    
           **minimumprotocol**
    
                  Defines the minimum channel encryption protocol to use.
    
                  By default, the highest version of TLS supported by both
                  client and server is used.
    
                  Allowed values are: **tls1.0** , **tls1.1** , **tls1.2**.
    
                  When running on an old Python version, only **tls1.0** is
                  allowed since old versions of Python only support up to TLS
                  1.0.
    
                  When running a Python that supports modern TLS versions,
                  the default is **tls1.1**. **tls1.0** can still be used to allow
                  TLS 1.0. However, this weakens security and should only be
                  used as a feature of last resort if a server does not
                  support TLS 1.1+.
    
           Options in the **[hostsecurity]** section can have the form
           **hostname** :**setting**. This allows multiple settings to be defined on a
           per-host basis.
    
           The following per-host settings can be defined.
    
           **ciphers**
    
                  This behaves like **ciphers** as described above except it only
                  applies to the host on which it is defined.
    
           **fingerprints**
    
                  A list of hashes of the DER encoded peer/remote
                  certificate. Values have the form **algorithm** :**fingerprint**.
                  e.g.
                  **sha256:c3ab8ff13720e8ad9047dd39466b3c8974e592c2fa383d4a3960714caef0c4f2**.
                  In addition, colons (**:**) can appear in the fingerprint part.
    
                  The following algorithms/prefixes are supported: **sha1** ,
                  **sha256** , **sha512**.
    
                  Use of **sha256** or **sha512** is preferred.
    
                  If a fingerprint is specified, the CA chain is not
                  validated for this host and Mercurial will require the
                  remote certificate to match one of the fingerprints
                  specified. This means if the server updates its
                  certificate, Mercurial will abort until a new fingerprint
                  is defined.  This can provide stronger security than
                  traditional CA-based validation at the expense of
                  convenience.
    
                  This option takes precedence over **verifycertsfile**.
    
           **minimumprotocol**
    
                  This behaves like **minimumprotocol** as described above except
                  it only applies to the host on which it is defined.
    
           **verifycertsfile**
    
                  Path to file a containing a list of PEM encoded
                  certificates used to verify the server certificate.
                  Environment variables and **~user** constructs are expanded in
                  the filename.
    
                  The server certificate or the certificate's certificate
                  authority (CA) must match a certificate from this file or
                  certificate verification will fail and connections to the
                  server will be refused.
    
                  If defined, only certificates provided by this file will be
                  used: **web.cacerts** and any system/default certificates will
                  not be used.
    
                  This option has no effect if the per-host **fingerprints**
                  option is set.
    
                  The format of the file is as follows:
    
                  -----BEGIN CERTIFICATE-----
                  ... (certificate in base64 PEM encoding) ...
                  -----END CERTIFICATE-----
                  -----BEGIN CERTIFICATE-----
                  ... (certificate in base64 PEM encoding) ...
                  -----END CERTIFICATE-----
    
           For example:
    
           [hostsecurity]
           hg.example.com:fingerprints = sha256:c3ab8ff13720e8ad9047dd39466b3c8974e592c2fa383d4a3960714caef0c4f2
           hg2.example.com:fingerprints = sha1:914f1aff87249c09b6859b88b1906d30756491ca, sha1:fc:e2:8d:d9:51:cd:cb:c1:4d:18:6b:b7:44:8d:49:72:57:e6:cd:33
           hg3.example.com:fingerprints = sha256:9a:b0:dc:e2:75:ad:8a:b7:84:58:e5:1f:07:32:f1:87:e6:bd:24:22:af:b7:ce:8e:9c:b4:10:cf:b9:f4:0e:d2
           foo.example.com:verifycertsfile = /etc/ssl/trusted-ca-certs.pem
    
           To change the default minimum protocol version to TLS 1.2 but to
           allow TLS 1.1 when connecting to **hg.example.com** :
    
           [hostsecurity]
           minimumprotocol = tls1.2
           hg.example.com:minimumprotocol = tls1.1
    
       **http_proxy**
           Used to access web-based Mercurial repositories through a HTTP
           proxy.
    
           **host**
    
                  Host name and (optional) port of the proxy server, for
                  example "myproxy:8000".
    
           **no**
    
                  Optional. Comma-separated list of host names that should
                  bypass the proxy.
    
           **passwd**
    
                  Optional. Password to authenticate with at the proxy
                  server.
    
           **user**
    
                  Optional. User name to authenticate with at the proxy
                  server.
    
           **always**
    
                  Optional. Always use the proxy, even for localhost and any
                  entries in **http_proxy.no**. (default: False)
    
       **http**
           Used to configure access to Mercurial repositories via HTTP.
    
           **timeout**
    
                  If set, blocking operations will timeout after that many
                  seconds.  (default: None)
    
       **merge**
           This section specifies behavior during merges and updates.
    
           **checkignored**
    
                  Controls behavior when an ignored file on disk has the same
                  name as a tracked file in the changeset being merged or
                  updated to, and has different contents. Options are **abort** ,
                  **warn** and **ignore**. With **abort** , abort on such files. With
                  **warn** , warn on such files and back them up as **.orig**. With
                  **ignore** , don't print a warning and back them up as **.orig**.
                  (default: **abort**)
    
           **checkunknown**
    
                  Controls behavior when an unknown file that isn't ignored
                  has the same name as a tracked file in the changeset being
                  merged or updated to, and has different contents. Similar
                  to **merge.checkignored** , except for files that are not
                  ignored. (default: **abort**)
    
           **on-failure**
    
                  When set to **continue**(the default), the merge process
                  attempts to merge all unresolved files using the merge
                  chosen tool, regardless of whether previous file merge
                  attempts during the process succeeded or not.  Setting this
                  to **prompt** will prompt after any merge failure continue or
                  halt the merge process. Setting this to **halt** will
                  automatically halt the merge process on any merge tool
                  failure. The merge process can be restarted by using the
                  **resolve** command. When a merge is halted, the repository is
                  left in a normal **unresolved** merge state.  (default:
                  **continue**)
    
           **strict-capability-check**
    
                  Whether capabilities of internal merge tools are checked
                  strictly or not, while examining rules to decide merge tool
                  to be used.  (default: False)
    
       **merge-patterns**
           This section specifies merge tools to associate with particular
           file patterns. Tools matched here will take precedence over the
           default merge tool. Patterns are globs by default, rooted at the
           repository root.
    
           Example:
    
           [merge-patterns]
           **.c = kdiff3
           **.jpg = myimgmerge
    
       **merge-tools**
           This section configures external merge tools to use for file-level
           merges. This section has likely been preconfigured at install
           time.  Use **hg config merge-tools** to check the existing
           configuration.  Also see **hg help merge-tools** for more details.
    
           Example **~/.hgrc** :
    
           [merge-tools]
           # Override stock tool location
           kdiff3.executable = ~/bin/kdiff3
           # Specify command line
           kdiff3.args = $base $local $other -o $output
           # Give higher priority
           kdiff3.priority = 1
    
           # Changing the priority of preconfigured tool
           meld.priority = 0
    
           # Disable a preconfigured tool
           vimdiff.disabled = yes
    
           # Define new tool
           myHtmlTool.args = -m $local $other $base $output
           myHtmlTool.regkey = Software\FooSoftware\HtmlMerge
           myHtmlTool.priority = 1
    
           Supported arguments:
    
           **priority**
    
                  The priority in which to evaluate this tool.  (default: 0)
    
           **executable**
    
                  Either just the name of the executable or its pathname.
    
                  On Windows, the path can use environment variables with
                  ${ProgramFiles} syntax.
    
                  (default: the tool name)
    
           **args**
    
                  The arguments to pass to the tool executable. You can refer
                  to the files being merged as well as the output file
                  through these variables: **$base** , **$local** , **$other** , **$output**.
    
                  The meaning of **$local** and **$other** can vary depending on
                  which action is being performed. During an update or merge,
                  **$local** represents the original state of the file, while
                  **$other** represents the commit you are updating to or the
                  commit you are merging with. During a rebase, **$local**
                  represents the destination of the rebase, and **$other**
                  represents the commit being rebased.
    
                  Some operations define custom labels to assist with
                  identifying the revisions, accessible via **$labellocal** ,
                  **$labelother** , and **$labelbase**. If custom labels are not
                  available, these will be **local** , **other** , and **base** ,
                  respectively.  (default: **$local $base $other**)
    
           **premerge**
    
                  Attempt to run internal non-interactive 3-way merge tool
                  before launching external tool.  Options are **true** , **false** ,
                  **keep** , **keep-merge3** , or **keep-mergediff**(experimental). The
                  **keep** option will leave markers in the file if the premerge
                  fails. The **keep-merge3** will do the same but include
                  information about the base of the merge in the marker (see
                  internal :merge3 in **hg help merge-tools**). The
                  **keep-mergediff** option is similar but uses a different
                  marker style (see internal :merge3 in **hg help merge-tools**).
                  (default: True)
    
           **binary**
    
                  This tool can merge binary files. (default: False, unless
                  tool was selected by file pattern match)
    
           **symlink**
    
                  This tool can merge symlinks. (default: False)
    
           **check**
    
                  A list of merge success-checking options:
    
                  **changed**
    
                         Ask whether merge was successful when the merged
                         file shows no changes.
    
                  **conflicts**
    
                         Check whether there are conflicts even though the
                         tool reported success.
    
                  **prompt**
    
                         Always prompt for merge success, regardless of
                         success reported by tool.
    
           **fixeol**
    
                  Attempt to fix up EOL changes caused by the merge tool.
                  (default: False)
    
           **gui**
    
                  This tool requires a graphical interface to run. (default:
                  False)
    
           **mergemarkers**
    
                  Controls whether the labels passed via **$labellocal** ,
                  **$labelother** , and **$labelbase** are **detailed**(respecting
                  **mergemarkertemplate**) or **basic**. If **premerge** is **keep** or
                  **keep-merge3** , the conflict markers generated during premerge
                  will be **detailed** if either this option or the corresponding
                  option in the **[ui]** section is **detailed**.  (default: **basic**)
    
           **mergemarkertemplate**
    
                  This setting can be used to override **mergemarker** from the
                  **[command-templates]** section on a per-tool basis; this
                  applies to the **$label** -prefixed variables and to the
                  conflict markers that are generated if **premerge** is **keep` or**
                  **``keep-merge3**. See the corresponding variable in **[ui]** for
                  more information.
    
           **regkey**
    
                  Windows registry key which describes install location of
                  this tool. Mercurial will search for this key first under
                  **HKEY_CURRENT_USER** and then under **HKEY_LOCAL_MACHINE**.
                  (default: None)
    
           **regkeyalt**
    
                  An alternate Windows registry key to try if the first key
                  is not found.  The alternate key uses the same **regname** and
                  **regappend** semantics of the primary key.  The most common
                  use for this key is to search for 32bit applications on
                  64bit operating systems.  (default: None)
    
           **regname**
    
                  Name of value to read from specified registry key.
                  (default: the unnamed (default) value)
    
           **regappend**
    
                  String to append to the value read from the registry,
                  typically the executable name of the tool.  (default: None)
    
       **pager**
           Setting used to control when to paginate and with what external
           tool. See **hg help pager** for details.
    
           **pager**
    
                  Define the external tool used as pager.
    
                  If no pager is set, Mercurial uses the environment variable
                  $PAGER.  If neither pager.pager, nor $PAGER is set, a
                  default pager will be used, typically _less_ on Unix and _more_
                  on Windows. Example:
    
                  [pager]
                  pager = less -FRX
    
           **ignore**
    
                  List of commands to disable the pager for. Example:
    
                  [pager]
                  ignore = version, help, update
    
       **patch**
           Settings used when applying patches, for instance through the
           'import' command or with Mercurial Queues extension.
    
           **eol**
    
                  When set to 'strict' patch content and patched files end of
                  lines are preserved. When set to **lf** or **crlf** , both files end
                  of lines are ignored when patching and the result line
                  endings are normalized to either LF (Unix) or CRLF
                  (Windows). When set to **auto** , end of lines are again ignored
                  while patching but line endings in patched files are
                  normalized to their original setting on a per-file basis.
                  If target file does not exist or has no end of line, patch
                  line endings are preserved.  (default: strict)
    
           **fuzz**
    
                  The number of lines of 'fuzz' to allow when applying
                  patches. This controls how much context the patcher is
                  allowed to ignore when trying to apply a patch.  (default:
                  2)
    
       **paths**
           Assigns symbolic names and behavior to repositories.
    
           Options are symbolic names defining the URL or directory that is
           the location of the repository. Example:
    
           [paths]
           my_server = https://example.com/my_repo
           local_path = /home/me/repo
    
           These symbolic names can be used from the command line. To pull
           from **my_server** : **hg pull my_server**. To push to **local_path** : **hg push**
           **local_path**. You can check **hg help urls** for details about valid
           URLs.
    
           Options containing colons (**:**) denote sub-options that can
           influence behavior for that specific path. Example:
    
           [paths]
           my_server = https://example.com/my_path
           my_server:pushurl = ssh://example.com/my_path
    
           Paths using the _path://otherpath_ scheme will inherit the
           sub-options value from the path they point to.
    
           The following sub-options can be defined:
    
           **multi-urls**
    
                  A boolean option. When enabled the value of the _[paths]_
                  entry will be parsed as a list and the alias will resolve
                  to multiple destination. If some of the list entry use the
                  _path://_ syntax, the suboption will be inherited
                  individually.
    
           **pushurl**
    
                  The URL to use for push operations. If not defined, the
                  location defined by the path's main entry is used.
    
           **pushrev**
    
                  A revset defining which revisions to push by default.
    
                  When **hg push** is executed without a **-r** argument, the revset
                  defined by this sub-option is evaluated to determine what
                  to push.
    
                  For example, a value of **.** will push the working directory's
                  revision by default.
    
                  Revsets specifying bookmarks will not result in the
                  bookmark being pushed.
    
           **bookmarks.mode**
    
                  How bookmark will be dealt during the exchange. It support
                  the following value
    
                  • **default** : the default behavior, local and remote bookmarks
                    are "merged" on push/pull.
    
                  • **mirror** : when pulling, replace local bookmarks by remote
                    bookmarks. This is useful to replicate a repository, or
                    as an optimization.
    
                  • **ignore** : ignore bookmarks during exchange.  (This
                    currently only affect pulling)
    
           The following special named paths exist:
    
           **default**
    
                  The URL or directory to use when no source or remote is
                  specified.
    
                  **hg clone** will automatically define this path to the
                  location the repository was cloned from.
    
           **default-push**
    
                  (deprecated) The URL or directory for the default **hg push**
                  location.  **default:pushurl** should be used instead.
    
       **phases**
           Specifies default handling of phases. See **hg help phases** for more
           information about working with phases.
    
           **publish**
    
                  Controls draft phase behavior when working as a server.
                  When true, pushed changesets are set to public in both
                  client and server and pulled or cloned changesets are set
                  to public in the client.  (default: True)
    
           **new-commit**
    
                  Phase of newly-created commits.  (default: draft)
    
           **checksubrepos**
    
                  Check the phase of the current revision of each
                  subrepository. Allowed values are "ignore", "follow" and
                  "abort". For settings other than "ignore", the phase of the
                  current revision of each subrepository is checked before
                  committing the parent repository. If any of those phases is
                  greater than the phase of the parent repository (e.g. if a
                  subrepo is in a "secret" phase while the parent repo is in
                  "draft" phase), the commit is either aborted (if
                  checksubrepos is set to "abort") or the higher phase is
                  used for the parent repository commit (if set to "follow").
                  (default: follow)
    
       **profiling**
           Specifies profiling type, format, and file output. Two profilers
           are supported: an instrumenting profiler (named **ls**), and a
           sampling profiler (named **stat**).
    
           In this section description, 'profiling data' stands for the raw
           data collected during profiling, while 'profiling report' stands
           for a statistical text report generated from the profiling data.
    
           **enabled**
    
                  Enable the profiler.  (default: false)
    
                  This is equivalent to passing **--profile** on the command
                  line.
    
           **type**
    
                  The type of profiler to use.  (default: stat)
    
                  **ls**
    
                         Use Python's built-in instrumenting profiler. This
                         profiler works on all platforms, but each line
                         number it reports is the first line of a function.
                         This restriction makes it difficult to identify the
                         expensive parts of a non-trivial function.
    
                  **stat**
    
                         Use a statistical profiler, statprof. This profiler
                         is most useful for profiling commands that run for
                         longer than about 0.1 seconds.
    
           **format**
    
                  Profiling format.  Specific to the **ls** instrumenting
                  profiler.  (default: text)
    
                  **text**
    
                         Generate a profiling report. When saving to a file,
                         it should be noted that only the report is saved,
                         and the profiling data is not kept.
    
                  **kcachegrind**
    
                         Format profiling data for kcachegrind use: when
                         saving to a file, the generated file can directly be
                         loaded into kcachegrind.
    
           **statformat**
    
                  Profiling format for the **stat** profiler.  (default: hotpath)
    
                  **hotpath**
    
                         Show a tree-based display containing the hot path of
                         execution (where most time was spent).
    
                  **bymethod**
    
                         Show a table of methods ordered by how frequently
                         they are active.
    
                  **byline**
    
                         Show a table of lines in files ordered by how
                         frequently they are active.
    
                  **json**
    
                         Render profiling data as JSON.
    
           **freq**
    
                  Sampling frequency.  Specific to the **stat** sampling
                  profiler.  (default: 1000)
    
           **output**
    
                  File path where profiling data or report should be saved.
                  If the file exists, it is replaced. (default: None, data is
                  printed on stderr)
    
           **sort**
    
                  Sort field.  Specific to the **ls** instrumenting profiler.
                  One of **callcount** , **reccallcount** , **totaltime** and **inlinetime**.
                  (default: inlinetime)
    
           **time-track**
    
                  Control if the stat profiler track **cpu** or **real** time.
                  (default: **cpu** on Windows, otherwise **real**)
    
           **limit**
    
                  Number of lines to show. Specific to the **ls** instrumenting
                  profiler.  (default: 30)
    
           **nested**
    
                  Show at most this number of lines of drill-down info after
                  each main entry.  This can help explain the difference
                  between Total and Inline.  Specific to the **ls** instrumenting
                  profiler.  (default: 0)
    
           **showmin**
    
                  Minimum fraction of samples an entry must have for it to be
                  displayed.  Can be specified as a float between **0.0** and **1.0**
                  or can have a **%** afterwards to allow values up to **100**. e.g.
                  **5%**.
    
                  Only used by the **stat** profiler.
    
                  For the **hotpath** format, default is **0.05**.  For the **chrome**
                  format, default is **0.005**.
    
                  The option is unused on other formats.
    
           **showmax**
    
                  Maximum fraction of samples an entry can have before it is
                  ignored in display. Values format is the same as **showmin**.
    
                  Only used by the **stat** profiler.
    
                  For the **chrome** format, default is **0.999**.
    
                  The option is unused on other formats.
    
           **showtime**
    
                  Show time taken as absolute durations, in addition to
                  percentages.  Only used by the **hotpath** format.  (default:
                  true)
    
       **progress**
           Mercurial commands can draw progress bars that are as informative
           as possible. Some progress bars only offer indeterminate
           information, while others have a definite end point.
    
           **debug**
    
                  Whether to print debug info when updating the progress bar.
                  (default: False)
    
           **delay**
    
                  Number of seconds (float) before showing the progress bar.
                  (default: 3)
    
           **changedelay**
    
                  Minimum delay before showing a new topic. When set to less
                  than 3 * refresh, that value will be used instead.
                  (default: 1)
    
           **estimateinterval**
    
                  Maximum sampling interval in seconds for speed and
                  estimated time calculation. (default: 60)
    
           **refresh**
    
                  Time in seconds between refreshes of the progress bar.
                  (default: 0.1)
    
           **format**
    
                  Format of the progress bar.
    
                  Valid entries for the format field are **topic** , **bar** , **number** ,
                  **unit** , **estimate** , **speed** , and **item**. **item** defaults to the last
                  20 characters of the item, but this can be changed by
                  adding either **- <num> **which would take the last num
                  characters, or **+ <num> **for the first num characters.
    
                  (default: topic bar number estimate)
    
           **width**
    
                  If set, the maximum width of the progress information (that
                  is, min(width, term width) will be used).
    
           **clear-complete**
    
                  Clear the progress bar after it's done. (default: True)
    
           **disable**
    
                  If true, don't show a progress bar.
    
           **assume-tty**
    
                  If true, ALWAYS show a progress bar, unless disable is
                  given.
    
       **rebase**
           **evolution.allowdivergence**
    
                  Default to False, when True allow creating divergence when
                  performing rebase of obsolete changesets.
    
       **revsetalias**
           Alias definitions for revsets. See **hg help revsets** for details.
    
       **rewrite**
           **backup-bundle**
    
                  Whether to save stripped changesets to a bundle file.
                  (default: True)
    
           **update-timestamp**
    
                  If true, updates the date and time of the changeset to
                  current. It is only applicable for _hg amend_ , _hg commit_
                  _--amend_ and _hg uncommit_ in the current version.
    
           **empty-successor**
    
              Control what happens with empty successors that are the result
              of rewrite operations. If set to **skip** , the successor is not
              created. If set to **keep** , the empty successor is created and
              kept.
    
              Currently, only the rebase and absorb commands consider this
              configuration.  (EXPERIMENTAL)
    
       **share**
           **safe-mismatch.source-safe**
    
                  Controls what happens when the shared repository does not
                  use the share-safe mechanism but its source repository
                  does.
    
                  Possible values are _abort_ (default), _allow_ , _upgrade-abort_
                  and _upgrade-allow_.
    
                  **abort** Disallows running any command and aborts **allow**
                  Respects the feature presence in the share source
                  **upgrade-abort** tries to upgrade the share to use share-safe;
                  if it fails, aborts **upgrade-allow** tries to upgrade the
                  share; if it fails, continue by respecting the share source
                  setting
    
                  Check **hg help config.format.use-share-safe** for details
                  about the share-safe feature.
    
           **safe-mismatch.source-safe.warn**
    
                  Shows a warning on operations if the shared repository does
                  not use share-safe, but the source repository does.
                  (default: True)
    
           **safe-mismatch.source-not-safe**
    
                  Controls what happens when the shared repository uses the
                  share-safe mechanism but its source does not.
    
                  Possible values are _abort_ (default), _allow_ , _downgrade-abort_
                  and _downgrade-allow_.
    
                  **abort** Disallows running any command and aborts **allow**
                  Respects the feature presence in the share source
                  **downgrade-abort** tries to downgrade the share to not use
                  share-safe; if it fails, aborts **downgrade-allow** tries to
                  downgrade the share to not use share-safe; if it fails,
                  continue by respecting the shared source setting
    
                  Check **hg help config.format.use-share-safe** for details
                  about the share-safe feature.
    
           **safe-mismatch.source-not-safe.warn**
    
                  Shows a warning on operations if the shared repository uses
                  share-safe, but the source repository does not.  (default:
                  True)
    
       **storage**
           Control the strategy Mercurial uses internally to store history.
           Options in this category impact performance and repository size.
    
           **revlog.issue6528.fix-incoming**
    
                  Version 5.8 of Mercurial had a bug leading to altering the
                  parent of file revision with copy information (or any other
                  metadata) on exchange. This leads to the copy metadata to
                  be overlooked by various internal logic. The issue was
                  fixed in Mercurial 5.8.1.  (See
                  https://bz.mercurial-scm.org/show_bug.cgi?id=6528 for
                  details)
    
                  As a result Mercurial is now checking and fixing incoming
                  file revisions to make sure there parents are in the right
                  order. This behavior can be disabled by setting this option
                  to _no_. This apply to revisions added through push, pull,
                  clone and unbundle.
    
                  To fix affected revisions that already exist within the
                  repository, one can use **hg debug-repair-issue-6528**.
    
           **revlog.optimize-delta-parent-choice**
    
                  When storing a merge revision, both parents will be equally
                  considered as a possible delta base. This results in better
                  delta selection and improved revlog compression. This
                  option is enabled by default.
    
                  Turning this option off can result in large increase of
                  repository size for repository with many merges.
    
           **revlog.persistent-nodemap.mmap**
    
                  Whether to use the Operating System "memory mapping"
                  feature (when possible) to access the persistent nodemap
                  data. This improve performance and reduce memory pressure.
    
                  Default to True.
    
                  For details on the "persistent-nodemap" feature, see: **hg**
                  **help config.format.use-persistent-nodemap**.
    
           **revlog.persistent-nodemap.slow-path**
    
                  Control the behavior of Merucrial when using a repository
                  with "persistent" nodemap with an installation of Mercurial
                  without a fast implementation for the feature:
    
                  **allow** : Silently use the slower implementation to access the
                  repository.  **warn** : Warn, but use the slower implementation
                  to access the repository.  **abort** : Prevent access to such
                  repositories. (This is the default)
    
                  For details on the "persistent-nodemap" feature, see: **hg**
                  **help config.format.use-persistent-nodemap**.
    
           **revlog.reuse-external-delta-parent**
    
                  Control the order in which delta parents are considered
                  when adding new revisions from an external source.
                  (typically: apply bundle from _hg pull_ or _hg push_).
    
                  New revisions are usually provided as a delta against other
                  revisions. By default, Mercurial will try to reuse this
                  delta first, therefore using the same "delta parent" as the
                  source. Directly using delta's from the source reduces CPU
                  usage and usually speeds up operation. However, in some
                  case, the source might have sub-optimal delta bases and
                  forcing their reevaluation is useful. For example, pushes
                  from an old client could have sub-optimal delta's parent
                  that the server want to optimize. (lack of general delta,
                  bad parents, choice, lack of sparse-revlog, etc).
    
                  This option is enabled by default. Turning it off will
                  ensure bad delta parent choices from older client do not
                  propagate to this repository, at the cost of a small
                  increase in CPU consumption.
    
                  Note: this option only control the order in which delta
                  parents are considered.  Even when disabled, the existing
                  delta from the source will be reused if the same delta
                  parent is selected.
    
           **revlog.reuse-external-delta**
    
                  Control the reuse of delta from external source.
                  (typically: apply bundle from _hg pull_ or _hg push_).
    
                  New revisions are usually provided as a delta against
                  another revision. By default, Mercurial will not recompute
                  the same delta again, trusting externally provided deltas.
                  There have been rare cases of small adjustment to the
                  diffing algorithm in the past. So in some rare case,
                  recomputing delta provided by ancient clients can provides
                  better results. Disabling this option means going through a
                  full delta recomputation for all incoming revisions. It
                  means a large increase in CPU usage and will slow
                  operations down.
    
                  This option is enabled by default. When disabled, it also
                  disables the related
                  **storage.revlog.reuse-external-delta-parent** option.
    
           **revlog.zlib.level**
    
                  Zlib compression level used when storing data into the
                  repository. Accepted Value range from 1 (lowest
                  compression) to 9 (highest compression). Zlib default value
                  is 6.
    
           **revlog.zstd.level**
    
                  zstd compression level used when storing data into the
                  repository. Accepted Value range from 1 (lowest
                  compression) to 22 (highest compression).  (default 3)
    
       **server**
           Controls generic server settings.
    
           **bookmarks-pushkey-compat**
    
                  Trigger pushkey hook when being pushed bookmark updates.
                  This config exist for compatibility purpose (default to
                  True)
    
                  If you use **pushkey** and **pre-pushkey** hooks to control
                  bookmark movement we recommend you migrate them to
                  **txnclose-bookmark** and **pretxnclose-bookmark**.
    
           **compressionengines**
    
                  List of compression engines and their relative priority to
                  advertise to clients.
    
                  The order of compression engines determines their priority,
                  the first having the highest priority. If a compression
                  engine is not listed here, it won't be advertised to
                  clients.
    
                  If not set (the default), built-in defaults are used. Run
                  **hg debuginstall** to list available compression engines and
                  their default wire protocol priority.
    
                  Older Mercurial clients only support zlib compression and
                  this setting has no effect for legacy clients.
    
           **uncompressed**
    
                  Whether to allow clients to clone a repository using the
                  uncompressed streaming protocol. This transfers about 40%
                  more data than a regular clone, but uses less memory and
                  CPU on both server and client. Over a LAN (100 Mbps or
                  better) or a very fast WAN, an uncompressed streaming clone
                  is a lot faster (~10x) than a regular clone. Over most WAN
                  connections (anything slower than about 6 Mbps),
                  uncompressed streaming is slower, because of the extra data
                  transfer overhead. This mode will also temporarily hold the
                  write lock while determining what data to transfer.
                  (default: True)
    
           **uncompressedallowsecret**
    
                  Whether to allow stream clones when the repository contains
                  secret changesets. (default: False)
    
           **preferuncompressed**
    
                  When set, clients will try to use the uncompressed
                  streaming protocol. (default: False)
    
           **disablefullbundle**
    
                  When set, servers will refuse attempts to do pull-based
                  clones.  If this option is set, **preferuncompressed** and/or
                  clone bundles are highly recommended. Partial clones will
                  still be allowed.  (default: False)
    
           **streamunbundle**
    
                  When set, servers will apply data sent from the client
                  directly, otherwise it will be written to a temporary file
                  first. This option effectively prevents concurrent pushes.
    
           **pullbundle**
    
                  When set, the server will check pullbundles.manifest for
                  bundles covering the requested heads and common nodes. The
                  first matching entry will be streamed to the client.
    
                  For HTTP transport, the stream will still use zlib
                  compression for older clients.
    
           **concurrent-push-mode**
    
                  Level of allowed race condition between two pushing
                  clients.
    
                  • 'strict': push is abort if another client touched the
                    repository while the push was preparing.
    
                  • 'check-related': push is only aborted if it affects head
                    that got also affected while the push was preparing.
                    (default since 5.4)
    
                  'check-related' only takes effect for compatible clients
                  (version 4.3 and later). Older clients will use 'strict'.
    
           **validate**
    
                  Whether to validate the completeness of pushed changesets
                  by checking that all new file revisions specified in
                  manifests are present. (default: False)
    
           **maxhttpheaderlen**
    
                  Instruct HTTP clients not to send request headers longer
                  than this many bytes. (default: 1024)
    
           **bundle1**
    
                  Whether to allow clients to push and pull using the legacy
                  bundle1 exchange format. (default: True)
    
           **bundle1gd**
    
                  Like **bundle1** but only used if the repository is using the
                  _generaldelta_ storage format. (default: True)
    
           **bundle1.push**
    
                  Whether to allow clients to push using the legacy bundle1
                  exchange format. (default: True)
    
           **bundle1gd.push**
    
                  Like **bundle1.push** but only used if the repository is using
                  the _generaldelta_ storage format. (default: True)
    
           **bundle1.pull**
    
                  Whether to allow clients to pull using the legacy bundle1
                  exchange format. (default: True)
    
           **bundle1gd.pull**
    
                  Like **bundle1.pull** but only used if the repository is using
                  the _generaldelta_ storage format. (default: True)
    
                  Large repositories using the _generaldelta_ storage format
                  should consider setting this option because converting
                  _generaldelta_ repositories to the exchange format required
                  by the bundle1 data format can consume a lot of CPU.
    
           **bundle2.stream**
    
                  Whether to allow clients to pull using the bundle2
                  streaming protocol.  (default: True)
    
           **zliblevel**
    
                  Integer between **-1** and **9** that controls the zlib compression
                  level for wire protocol commands that send zlib compressed
                  output (notably the commands that send repository history
                  data).
    
                  The default (**-1**) uses the default zlib compression level,
                  which is likely equivalent to **6**. **0** means no compression. **9**
                  means maximum compression.
    
                  Setting this option allows server operators to make
                  trade-offs between bandwidth and CPU used. Lowering the
                  compression lowers CPU utilization but sends more bytes to
                  clients.
    
                  This option only impacts the HTTP server.
    
           **zstdlevel**
    
                  Integer between **1** and **22** that controls the zstd compression
                  level for wire protocol commands. **1** is the minimal amount
                  of compression and **22** is the highest amount of compression.
    
                  The default (**3**) should be significantly faster than zlib
                  while likely delivering better compression ratios.
    
                  This option only impacts the HTTP server.
    
                  See also **server.zliblevel**.
    
           **view**
    
                  Repository filter used when exchanging revisions with the
                  peer.
    
                  The default view (**served**) excludes secret and hidden
                  changesets.  Another useful value is **immutable**(no draft,
                  secret or hidden changesets). (EXPERIMENTAL)
    
       **smtp**
           Configuration for extensions that need to send email messages.
    
           **host**
    
                  Host name of mail server, e.g. "mail.example.com".
    
           **port**
    
                  Optional. Port to connect to on mail server. (default: 465
                  if **tls** is smtps; 25 otherwise)
    
           **tls**
    
                  Optional. Method to enable TLS when connecting to mail
                  server: starttls, smtps or none. (default: none)
    
           **username**
    
                  Optional. User name for authenticating with the SMTP
                  server.  (default: None)
    
           **password**
    
                  Optional. Password for authenticating with the SMTP server.
                  If not specified, interactive sessions will prompt the user
                  for a password; non-interactive sessions will fail.
                  (default: None)
    
           **local_hostname**
    
                  Optional. The hostname that the sender can use to identify
                  itself to the MTA.
    
       **subpaths**
           Subrepository source URLs can go stale if a remote server changes
           name or becomes temporarily unavailable. This section lets you
           define rewrite rules of the form:
    
           <pattern> = <replacement>
    
           where **pattern** is a regular expression matching a subrepository
           source URL and **replacement** is the replacement string used to
           rewrite it. Groups can be matched in **pattern** and referenced in
           **replacements**. For instance:
    
           http://server/(.*)-hg/ = http://hg.server/\1/
    
           rewrites **http://server/foo-hg/** into **http://hg.server/foo/ **.
    
           Relative subrepository paths are first made absolute, and the
           rewrite rules are then applied on the full (absolute) path. If
           **pattern** doesn't match the full path, an attempt is made to apply
           it on the relative path alone. The rules are applied in definition
           order.
    
       **subrepos**
           This section contains options that control the behavior of the
           subrepositories feature. See also **hg help subrepos**.
    
           Security note: auditing in Mercurial is known to be insufficient
           to prevent clone-time code execution with carefully constructed
           Git subrepos. It is unknown if a similar detect is present in
           Subversion subrepos. Both Git and Subversion subrepos are disabled
           by default out of security concerns. These subrepo types can be
           enabled using the respective options below.
    
           **allowed**
    
                  Whether subrepositories are allowed in the working
                  directory.
    
                  When false, commands involving subrepositories (like **hg**
                  **update**) will fail for all subrepository types.  (default:
                  true)
    
           **hg:allowed**
    
                  Whether Mercurial subrepositories are allowed in the
                  working directory. This option only has an effect if
                  **subrepos.allowed** is true.  (default: true)
    
           **git:allowed**
    
                  Whether Git subrepositories are allowed in the working
                  directory.  This option only has an effect if
                  **subrepos.allowed** is true.
    
                  See the security note above before enabling Git subrepos.
                  (default: false)
    
           **svn:allowed**
    
                  Whether Subversion subrepositories are allowed in the
                  working directory. This option only has an effect if
                  **subrepos.allowed** is true.
    
                  See the security note above before enabling Subversion
                  subrepos.  (default: false)
    
       **templatealias**
           Alias definitions for templates. See **hg help templates** for
           details.
    
       **templates**
           Use the **[templates]** section to define template strings.  See **hg**
           **help templates** for details.
    
       **trusted**
           Mercurial will not use the settings in the **.hg/hgrc** file from a
           repository if it doesn't belong to a trusted user or to a trusted
           group, as various hgrc features allow arbitrary commands to be
           run. This issue is often encountered when configuring hooks or
           extensions for shared repositories or servers. However, the web
           interface will use some safe settings from the **[web]** section.
    
           This section specifies what users and groups are trusted. The
           current user is always trusted. To trust everybody, list a user or
           a group with name *****. These settings must be placed in an
           _already-trusted file_ to take effect, such as **$HOME/.hgrc** of the
           user or service running Mercurial.
    
           **users**
    
                  Comma-separated list of trusted users.
    
           **groups**
    
                  Comma-separated list of trusted groups.
    
       **ui**
           User interface controls.
    
           **archivemeta**
    
                  Whether to include the .hg_archival.txt file containing
                  meta data (hashes for the repository base and for tip) in
                  archives created by the **hg archive** command or downloaded
                  via hgweb.  (default: True)
    
           **askusername**
    
                  Whether to prompt for a username when committing. If True,
                  and neither **$HGUSER** nor **$EMAIL** has been specified, then the
                  user will be prompted to enter a username. If no username
                  is entered, the default **USER@HOST** is used instead.
                  (default: False)
    
           **clonebundles**
    
                  Whether the "clone bundles" feature is enabled.
    
                  When enabled, **hg clone** may download and apply a
                  server-advertised bundle file from a URL instead of using
                  the normal exchange mechanism.
    
                  This can likely result in faster and more reliable clones.
    
                  (default: True)
    
           **clonebundlefallback**
    
                  Whether failure to apply an advertised "clone bundle" from
                  a server should result in fallback to a regular clone.
    
                  This is disabled by default because servers advertising
                  "clone bundles" often do so to reduce server load. If
                  advertised bundles start mass failing and clients
                  automatically fall back to a regular clone, this would add
                  significant and unexpected load to the server since the
                  server is expecting clone operations to be offloaded to
                  pre-generated bundles. Failing fast (the default behavior)
                  ensures clients don't overwhelm the server when "clone
                  bundle" application fails.
    
                  (default: False)
    
           **clonebundleprefers**
    
                  Defines preferences for which "clone bundles" to use.
    
                  Servers advertising "clone bundles" may advertise multiple
                  available bundles. Each bundle may have different
                  attributes, such as the bundle type and compression format.
                  This option is used to prefer a particular bundle over
                  another.
    
                  The following keys are defined by Mercurial:
    
                  **BUNDLESPEC**
                         A bundle type specifier. These are strings passed to
                         **hg bundle -t**.  e.g. **gzip-v2** or **bzip2-v1**.
    
                  **COMPRESSION**
                         The compression format of the bundle. e.g. **gzip** and
                         **bzip2**.
    
                  Server operators may define custom keys.
    
                  Example values: **COMPRESSION=bzip2** , **BUNDLESPEC=gzip-v2,**
                  **COMPRESSION=gzip**.
    
                  By default, the first bundle advertised by the server is
                  used.
    
           **color**
    
                  When to colorize output. Possible value are Boolean ("yes"
                  or "no"), or "debug", or "always". (default: "yes"). "yes"
                  will use color whenever it seems possible. See **hg help**
                  **color** for details.
    
           **commitsubrepos**
    
                  Whether to commit modified subrepositories when committing
                  the parent repository. If False and one subrepository has
                  uncommitted changes, abort the commit.  (default: False)
    
           **debug**
    
                  Print debugging information. (default: False)
    
           **editor**
    
                  The editor to use during a commit. (default: **$EDITOR** or **vi**)
    
           **fallbackencoding**
    
                  Encoding to try if it's not possible to decode the
                  changelog using UTF-8. (default: ISO-8859-1)
    
           **graphnodetemplate**
    
                  (DEPRECATED) Use **command-templates.graphnode** instead.
    
           **ignore**
    
                  A file to read per-user ignore patterns from. This file
                  should be in the same format as a repository-wide .hgignore
                  file. Filenames are relative to the repository root. This
                  option supports hook syntax, so if you want to specify
                  multiple ignore files, you can do so by setting something
                  like **ignore.other = ~/.hgignore2**. For details of the ignore
                  file format, see the hgignore(5) man page.
    
           **interactive**
    
                  Allow to prompt the user. (default: True)
    
           **interface**
    
                  Select the default interface for interactive features
                  (default: text).  Possible values are 'text' and 'curses'.
    
           **interface.chunkselector**
    
                  Select the interface for change recording (e.g. **hg commit**
                  **-i**).  Possible values are 'text' and 'curses'.  This config
                  overrides the interface specified by ui.interface.
    
           **large-file-limit**
    
                  Largest file size that gives no memory use warning.
                  Possible values are integers or 0 to disable the check.
                  Value is expressed in bytes by default, one can use
                  standard units for convenience (e.g. 10MB, 0.1GB, etc)
                  (default: 10MB)
    
           **logtemplate**
    
                  (DEPRECATED) Use **command-templates.log** instead.
    
           **merge**
    
                  The conflict resolution program to use during a manual
                  merge.  For more information on merge tools see **hg help**
                  **merge-tools**.  For configuring merge tools see the
                  **[merge-tools]** section.
    
           **mergemarkers**
    
                  Sets the merge conflict marker label styling. The **detailed**
                  style uses the **command-templates.mergemarker** setting to
                  style the labels.  The **basic** style just uses 'local' and
                  'other' as the marker label.  One of **basic** or **detailed**.
                  (default: **basic**)
    
           **mergemarkertemplate**
    
                  (DEPRECATED) Use **command-templates.mergemarker** instead.
    
           **message-output**
    
                  Where to write status and error messages. (default: **stdio**)
    
                  **channel**
    
                         Use separate channel for structured output.
                         (Command-server only)
    
                  **stderr**
    
                         Everything to stderr.
    
                  **stdio**
    
                         Status to stdout, and error to stderr.
    
           **origbackuppath**
    
                  The path to a directory used to store generated .orig
                  files. If the path is not a directory, one will be created.
                  If set, files stored in this directory have the same name
                  as the original file and do not have a .orig suffix.
    
           **paginate**
    
                  Control the pagination of command output (default: True).
                  See **hg help pager** for details.
    
           **patch**
    
                  An optional external tool that **hg import** and some
                  extensions will use for applying patches. By default
                  Mercurial uses an internal patch utility. The external tool
                  must work as the common Unix **patch** program. In particular,
                  it must accept a **-p** argument to strip patch headers, a **-d**
                  argument to specify the current directory, a file name to
                  patch, and a patch file to take from stdin.
    
                  It is possible to specify a patch tool together with extra
                  arguments. For example, setting this option to **patch**
                  **--merge** will use the **patch** program with its 2-way merge
                  option.
    
           **portablefilenames**
    
                  Check for portable filenames. Can be **warn** , **ignore** or **abort**.
                  (default: **warn**)
    
                  **warn**
    
                         Print a warning message on POSIX platforms, if a
                         file with a non-portable filename is added (e.g. a
                         file with a name that can't be created on Windows
                         because it contains reserved parts like **AUX** ,
                         reserved characters like **:** , or would cause a case
                         collision with an existing file).
    
                  **ignore**
    
                         Don't print a warning.
    
                  **abort**
    
                         The command is aborted.
    
                  **true**
    
                         Alias for **warn**.
    
                  **false**
    
                         Alias for **ignore**.
    
                  On Windows, this configuration option is ignored and the
                  command aborted.
    
           **pre-merge-tool-output-template**
    
                  (DEPRECATED) Use **command-template.pre-merge-tool-output**
                  instead.
    
           **quiet**
    
                  Reduce the amount of output printed.  (default: False)
    
           **relative-paths**
    
                  Prefer relative paths in the UI.
    
           **remotecmd**
    
                  Remote command to use for clone/push/pull operations.
                  (default: **hg**)
    
           **report_untrusted**
    
                  Warn if a **.hg/hgrc** file is ignored due to not being owned
                  by a trusted user or group.  (default: True)
    
           **slash**
    
                  (Deprecated. Use **slashpath** template filter instead.)
    
                  Display paths using a slash (**/**) as the path separator. This
                  only makes a difference on systems where the default path
                  separator is not the slash character (e.g. Windows uses the
                  backslash character (**\**)).  (default: False)
    
           **statuscopies**
    
                  Display copies in the status command.
    
           **ssh**
    
                  Command to use for SSH connections. (default: **ssh**)
    
           **ssherrorhint**
    
                  A hint shown to the user in the case of SSH error (e.g.
                  **Please seehttp://company/internalwiki/ssh.html**)
    
           **strict**
    
                  Require exact command names, instead of allowing
                  unambiguous abbreviations. (default: False)
    
           **style**
    
                  Name of style to use for command output.
    
           **supportcontact**
    
                  A URL where users should report a Mercurial traceback. Use
                  this if you are a large organisation with its own Mercurial
                  deployment process and crash reports should be addressed to
                  your internal support.
    
           **textwidth**
    
                  Maximum width of help text. A longer line generated by **hg**
                  **help** or **hg subcommand --help** will be broken after white
                  space to get this width or the terminal width, whichever
                  comes first.  A non-positive value will disable this and
                  the terminal width will be used. (default: 78)
    
           **timeout**
    
                  The timeout used when a lock is held (in seconds), a
                  negative value means no timeout. (default: 600)
    
           **timeout.warn**
    
                  Time (in seconds) before a warning is printed about held
                  lock. A negative value means no warning. (default: 0)
    
           **traceback**
    
                  Mercurial always prints a traceback when an unknown
                  exception occurs. Setting this to True will make Mercurial
                  print a traceback on all exceptions, even those recognized
                  by Mercurial (such as IOError or MemoryError). (default:
                  False)
    
           **tweakdefaults**
    
              By default Mercurial's behavior changes very little from
              release to release, but over time the recommended config
              settings shift. Enable this config to opt in to get automatic
              tweaks to Mercurial's behavior over time. This config setting
              will have no effect if **HGPLAIN** is set or **HGPLAINEXCEPT** is set
              and does not include **tweakdefaults**. (default: False)
    
              It currently means:
    
              [ui]
              # The rollback command is dangerous. As a rule, don't use it.
              rollback = False
              # Make `hg status` report copy information
              statuscopies = yes
              # Prefer curses UIs when available. Revert to plain-text with `text`.
              interface = curses
              # Make compatible commands emit cwd-relative paths by default.
              relative-paths = yes
    
              [commands]
              # Grep working directory by default.
              grep.all-files = True
              # Refuse to perform an `hg update` that would cause a file content merge
              update.check = noconflict
              # Show conflicts information in `hg status`
              status.verbose = True
              # Make `hg resolve` with no action (like `-m`) fail instead of re-merging.
              resolve.explicit-re-merge = True
    
              [diff]
              git = 1
              showfunc = 1
              word-diff = 1
    
           **username**
    
                  The committer of a changeset created when running "commit".
                  Typically a person's name and email address, e.g. **Fred**
                  **Widget <fred@example.com>**. Environment variables in the
                  username are expanded.
    
                  (default: **$EMAIL** or **username@hostname**. If the username in
                  hgrc is empty, e.g. if the system admin set **username =** in
                  the system hgrc, it has to be specified manually or in a
                  different hgrc file)
    
           **verbose**
    
                  Increase the amount of output printed. (default: False)
    
       **command-templates**
           Templates used for customizing the output of commands.
    
           **graphnode**
    
                  The template used to print changeset nodes in an ASCII
                  revision graph.  (default: **{graphnode}**)
    
           **log**
    
                  Template string for commands that print changesets.
    
           **mergemarker**
    
                  The template used to print the commit description next to
                  each conflict marker during merge conflicts. See **hg help**
                  **templates** for the template format.
    
                  Defaults to showing the hash, tags, branches, bookmarks,
                  author, and the first line of the commit description.
    
                  If you use non-ASCII characters in names for tags,
                  branches, bookmarks, authors, and/or commit descriptions,
                  you must pay attention to encodings of managed files. At
                  template expansion, non-ASCII characters use the encoding
                  specified by the **--encoding** global option, **HGENCODING** or
                  other environment variables that govern your locale. If the
                  encoding of the merge markers is different from the
                  encoding of the merged files, serious problems may occur.
    
                  Can be overridden per-merge-tool, see the **[merge-tools]**
                  section.
    
           **oneline-summary**
    
                  A template used by _hg rebase_ and other commands for showing
                  a one-line summary of a commit. If the template configured
                  here is longer than one line, then only the first line is
                  used.
    
                  The template can be overridden per command by defining a
                  template in _oneline-summary. <command>_, where _< command>_ can
                  be e.g. "rebase".
    
           **pre-merge-tool-output**
    
                  A template that is printed before executing an external
                  merge tool. This can be used to print out additional
                  context that might be useful to have during the conflict
                  resolution, such as the description of the various commits
                  involved or bookmarks/tags.
    
                  Additional information is available in the **local`, ``base** ,
                  and **other** dicts. For example: **{local.label}** , **{base.name}** ,
                  or **{other.islink}**.
    
       **web**
           Web interface configuration. The settings in this section apply to
           both the builtin webserver (started by **hg serve**) and the script
           you run through a webserver (**hgweb.cgi** and the derivatives for
           FastCGI and WSGI).
    
           The Mercurial webserver does no authentication (it does not prompt
           for usernames and passwords to validate _who_ users are), but it
           does do authorization (it grants or denies access for
           _authenticated users_ based on settings in this section). You must
           either configure your webserver to do authentication for you, or
           disable the authorization checks.
    
           For a quick setup in a trusted environment, e.g., a private LAN,
           where you want it to accept pushes from anybody, you can use the
           following command line:
    
           $ hg --config web.allow-push=* --config web.push_ssl=False serve
    
           Note that this will allow anybody to push anything to the server
           and that this should not be used for public servers.
    
           The full set of options is:
    
           **accesslog**
    
                  Where to output the access log. (default: stdout)
    
           **address**
    
                  Interface address to bind to. (default: all)
    
           **allow-archive**
    
                  List of archive format (bz2, gz, zip) allowed for
                  downloading.  (default: empty)
    
           **allowbz2**
    
                  (DEPRECATED) Whether to allow .tar.bz2 downloading of
                  repository revisions.  (default: False)
    
           **allowgz**
    
                  (DEPRECATED) Whether to allow .tar.gz downloading of
                  repository revisions.  (default: False)
    
           **allow-pull**
    
                  Whether to allow pulling from the repository. (default:
                  True)
    
           **allow-push**
    
                  Whether to allow pushing to the repository. If empty or not
                  set, pushing is not allowed. If the special value ***** , any
                  remote user can push, including unauthenticated users.
                  Otherwise, the remote user must have been authenticated,
                  and the authenticated user name must be present in this
                  list. The contents of the allow-push list are examined
                  after the deny_push list.
    
           **allow_read**
    
                  If the user has not already been denied repository access
                  due to the contents of deny_read, this list determines
                  whether to grant repository access to the user. If this
                  list is not empty, and the user is unauthenticated or not
                  present in the list, then access is denied for the user. If
                  the list is empty or not set, then access is permitted to
                  all users by default. Setting allow_read to the special
                  value ***** is equivalent to it not being set (i.e. access is
                  permitted to all users). The contents of the allow_read
                  list are examined after the deny_read list.
    
           **allowzip**
    
                  (DEPRECATED) Whether to allow .zip downloading of
                  repository revisions. This feature creates temporary files.
                  (default: False)
    
           **archivesubrepos**
    
                  Whether to recurse into subrepositories when archiving.
                  (default: False)
    
           **baseurl**
    
                  Base URL to use when publishing URLs in other locations, so
                  third-party tools like email notification hooks can
                  construct URLs. Example: **http://hgserver/repos/ **.
    
           **cacerts**
    
                  Path to file containing a list of PEM encoded certificate
                  authority certificates. Environment variables and **~user**
                  constructs are expanded in the filename. If specified on
                  the client, then it will verify the identity of remote
                  HTTPS servers with these certificates.
    
                  To disable SSL verification temporarily, specify **--insecure**
                  from command line.
    
                  You can use OpenSSL's CA certificate file if your platform
                  has one. On most Linux systems this will be
                  **/etc/ssl/certs/ca-certificates.crt**. Otherwise you will have
                  to generate this file manually. The form must be as
                  follows:
    
                  -----BEGIN CERTIFICATE-----
                  ... (certificate in base64 PEM encoding) ...
                  -----END CERTIFICATE-----
                  -----BEGIN CERTIFICATE-----
                  ... (certificate in base64 PEM encoding) ...
                  -----END CERTIFICATE-----
    
           **cache**
    
                  Whether to support caching in hgweb. (default: True)
    
           **certificate**
    
                  Certificate to use when running **hg serve**.
    
           **collapse**
    
                  With **descend** enabled, repositories in subdirectories are
                  shown at a single level alongside repositories in the
                  current path. With **collapse** also enabled, repositories
                  residing at a deeper level than the current path are
                  grouped behind navigable directory entries that lead to the
                  locations of these repositories. In effect, this setting
                  collapses each collection of repositories found within a
                  subdirectory into a single entry for that subdirectory.
                  (default: False)
    
           **comparisoncontext**
    
                  Number of lines of context to show in side-by-side file
                  comparison. If negative or the value **full** , whole files are
                  shown. (default: 5)
    
                  This setting can be overridden by a **context** request
                  parameter to the **comparison** command, taking the same
                  values.
    
           **contact**
    
                  Name or email address of the person in charge of the
                  repository.  (default: ui.username or **$EMAIL** or "unknown"
                  if unset or empty)
    
           **csp**
    
                  Send a **Content-Security-Policy** HTTP header with this value.
    
                  The value may contain a special string **%nonce%** , which will
                  be replaced by a randomly-generated one-time use value. If
                  the value contains **%nonce%** , **web.cache** will be disabled, as
                  caching undermines the one-time property of the nonce. This
                  nonce will also be inserted into **< script> **elements
                  containing inline JavaScript.
    
                  Note: lots of HTML content sent by the server is derived
                  from repository data. Please consider the potential for
                  malicious repository data to "inject" itself into generated
                  HTML content as part of your security threat model.
    
           **deny_push**
    
                  Whether to deny pushing to the repository. If empty or not
                  set, push is not denied. If the special value ***** , all remote
                  users are denied push. Otherwise, unauthenticated users are
                  all denied, and any authenticated user name present in this
                  list is also denied. The contents of the deny_push list are
                  examined before the allow-push list.
    
           **deny_read**
    
                  Whether to deny reading/viewing of the repository. If this
                  list is not empty, unauthenticated users are all denied,
                  and any authenticated user name present in this list is
                  also denied access to the repository. If set to the special
                  value ***** , all remote users are denied access (rarely needed
                  ;). If deny_read is empty or not set, the determination of
                  repository access depends on the presence and content of
                  the allow_read list (see description). If both deny_read
                  and allow_read are empty or not set, then access is
                  permitted to all users by default. If the repository is
                  being served via hgwebdir, denied users will not be able to
                  see it in the list of repositories. The contents of the
                  deny_read list have priority over (are examined before) the
                  contents of the allow_read list.
    
           **descend**
    
                  hgwebdir indexes will not descend into subdirectories. Only
                  repositories directly in the current path will be shown
                  (other repositories are still available from the index
                  corresponding to their containing path).
    
           **description**
    
                  Textual description of the repository's purpose or
                  contents.  (default: "unknown")
    
           **encoding**
    
                  Character encoding name. (default: the current locale
                  charset) Example: "UTF-8".
    
           **errorlog**
    
                  Where to output the error log. (default: stderr)
    
           **guessmime**
    
                  Control MIME types for raw download of file content.  Set
                  to True to let hgweb guess the content type from the file
                  extension. This will serve HTML files as **text/html** and
                  might allow cross-site scripting attacks when serving
                  untrusted repositories. (default: False)
    
           **hidden**
    
                  Whether to hide the repository in the hgwebdir index.
                  (default: False)
    
           **ipv6**
    
                  Whether to use IPv6. (default: False)
    
           **labels**
    
                  List of string _labels_ associated with the repository.
    
                  Labels are exposed as a template keyword and can be used to
                  customize output. e.g. the **index** template can group or
                  filter repositories by labels and the **summary** template can
                  display additional content if a specific label is present.
    
           **logoimg**
    
                  File name of the logo image that some templates display on
                  each page.  The file name is relative to **staticurl**. That
                  is, the full path to the logo image is "staticurl/logoimg".
                  If unset, **hglogo.png** will be used.
    
           **logourl**
    
                  Base URL to use for logos. If unset,
                  **https://mercurial-scm.org/** will be used.
    
           **maxchanges**
    
                  Maximum number of changes to list on the changelog.
                  (default: 10)
    
           **maxfiles**
    
                  Maximum number of files to list per changeset. (default:
                  10)
    
           **maxshortchanges**
    
                  Maximum number of changes to list on the shortlog, graph or
                  filelog pages. (default: 60)
    
           **name**
    
                  Repository name to use in the web interface.  (default:
                  current working directory)
    
           **port**
    
                  Port to listen on. (default: 8000)
    
           **prefix**
    
                  Prefix path to serve from. (default: '' (server root))
    
           **push_ssl**
    
                  Whether to require that inbound pushes be transported over
                  SSL to prevent password sniffing. (default: True)
    
           **refreshinterval**
    
                  How frequently directory listings re-scan the filesystem
                  for new repositories, in seconds. This is relevant when
                  wildcards are used to define paths. Depending on how much
                  filesystem traversal is required, refreshing may negatively
                  impact performance.
    
                  Values less than or equal to 0 always refresh.  (default:
                  20)
    
           **server-header**
    
                  Value for HTTP **Server** response header.
    
           **static**
    
                  Directory where static files are served from.
    
           **staticurl**
    
                  Base URL to use for static files. If unset, static files
                  (e.g. the hgicon.png favicon) will be served by the CGI
                  script itself. Use this setting to serve them directly with
                  the HTTP server.  Example: **http://hgserver/static/ **.
    
           **stripes**
    
                  How many lines a "zebra stripe" should span in multi-line
                  output.  Set to 0 to disable. (default: 1)
    
           **style**
    
                  Which template map style to use. The available options are
                  the names of subdirectories in the HTML templates path.
                  (default: **paper**) Example: **monoblue**.
    
           **templates**
    
                  Where to find the HTML templates. The default path to the
                  HTML templates can be obtained from **hg debuginstall**.
    
       **websub**
           Web substitution filter definition. You can use this section to
           define a set of regular expression substitution patterns which let
           you automatically modify the hgweb server output.
    
           The default hgweb templates only apply these substitution patterns
           on the revision description fields. You can apply them anywhere
           you want when you create your own templates by adding calls to the
           "websub" filter (usually after calling the "escape" filter).
    
           This can be used, for example, to convert issue references to
           links to your issue tracker, or to convert "markdown-like" syntax
           into HTML (see the examples below).
    
           Each entry in this section names a substitution filter.  The value
           of each entry defines the substitution expression itself.  The
           websub expressions follow the old interhg extension syntax, which
           in turn imitates the Unix sed replacement syntax:
    
           patternname = s/SEARCH_REGEX/REPLACE_EXPRESSION/[i]
    
           You can use any separator other than "/". The final "i" is
           optional and indicates that the search must be case insensitive.
    
           Examples:
    
           [websub]
           issues = s|issue(\d+)|<a href="http://bts.example.org/issue\1">issue\1</a>|i
           italic = s/\b_(\S+)_\b/<i>\1<\/i>/
           bold = s/\*\b(\S+)\b\*/<b>\1<\/b>/
    
       **worker**
           Parallel master/worker configuration. We currently perform working
           directory updates in parallel on Unix-like systems, which greatly
           helps performance.
    
           **enabled**
    
                  Whether to enable workers code to be used.  (default: true)
    
           **numcpus**
    
                  Number of CPUs to use for parallel operations. A zero or
                  negative value is treated as **use the default**.  (default: 4
                  or the number of CPUs on the system, whichever is larger)
    
           **backgroundclose**
    
                  Whether to enable closing file handles on background
                  threads during certain operations. Some platforms aren't
                  very efficient at closing file handles that have been
                  written or appended to. By performing file closing on
                  background threads, file write rate can increase
                  substantially.  (default: true on Windows, false elsewhere)
    
           **backgroundcloseminfilecount**
    
                  Minimum number of files required to trigger background file
                  closing.  Operations not writing this many files won't
                  start background close threads.  (default: 2048)
    
           **backgroundclosemaxqueue**
    
                  The maximum number of opened file handles waiting to be
                  closed in the background. This option only has an effect if
                  **backgroundclose** is enabled.  (default: 384)
    
           **backgroundclosethreadcount**
    
                  Number of threads to process background file closes. Only
                  relevant if **backgroundclose** is enabled.  (default: 4)
    


## COPYING



           This manual page is copyright 2005 Bryan O'Sullivan.  Mercurial is
           copyright 2005-2022 Olivia Mackall.  Free use of this software is
           granted under the terms of the GNU General Public License version
           2 or any later version.
    


* * *