HGRC(5)

=======

Bryan O'Sullivan <bos@serpentine.com>

NAME

----

hgrc - configuration files for Mercurial

SYNOPSIS

--------

The Mercurial system uses a set of configuration files to control

aspects of its behaviour.

FILES

-----

Mercurial reads configuration data from several files, if they exist.

The names of these files depend on the system on which Mercurial is

installed. Windows registry keys contain PATH-like strings, every

part must reference a Mercurial.ini file or be a directory where *.rc

files will be read.

(Unix)    <install-root>/etc/mercurial/hgrc.d/*.rc::

(Unix)    <install-root>/etc/mercurial/hgrc::

    Per-installation configuration files, searched for in the

    directory where Mercurial is installed.  For example, if installed

    in /shared/tools, 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.

(Unix)    /etc/mercurial/hgrc.d/*.rc::

(Unix)    /etc/mercurial/hgrc::

(Windows) HKEY_LOCAL_MACHINE\SOFTWARE\Mercurial::

  or::

(Windows) C:\Mercurial\Mercurial.ini::

    Per-system configuration files, 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.

(Unix)    $HOME/.hgrc::

(Windows) C:\Documents and Settings\USERNAME\Mercurial.ini::

(Windows) $HOME\Mercurial.ini::

    Per-user configuration file, for the user running Mercurial.

    Options in this file apply to all Mercurial commands executed by

    any user in any directory.  Options in this file override

    per-installation and per-system options.

    On Windows system, one of these is chosen exclusively according

    to definition of HOME environment variable.

(Unix, Windows) <repo>/.hg/hgrc::

    Per-repository configuration options that 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 Unix, most of this file will be ignored if it doesn't belong

    to a trusted user or to a trusted group.  See the documentation

    for the trusted section below for more details.

SYNTAX

------

A configuration file consists of sections, led by a "[section]" header

and followed by "name: value" entries; "name=value" is also accepted.

    [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.

The optional values can contain format strings which refer to other

values in the same section, or values in a special DEFAULT section.

Lines beginning with "#" or ";" are ignored and may be used to provide

comments.

SECTIONS

--------

This section describes the different sections that may appear in a

Mercurial "hgrc" file, the purpose of each section, its possible

keys, and their possible values.

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".

  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.

  The most common usage is for LF <-> CRLF translation on Windows.

  For this, use the "smart" convertors which check for binary files:

    [extensions]

    hgext.win32text =

    [encode]

    ** = cleverencode:

    [decode]

    ** = cleverdecode:

  or if you only want to translate certain files:

    [extensions]

    hgext.win32text =

    [encode]

    **.txt = dumbencode:

    [decode]

    **.txt = dumbdecode:

defaults::

  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. They are all boolean and

  defaults to False.

  git;;

    Use git extended diff format.

  nodates;;

    Don't include dates in diff headers.

  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.

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.  Cannot be set interactively.

  method;;

    Optional.  Method to use to send email messages.  If value is

    "smtp" (default), use SMTP (see section "[smtp]" 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.

  Email example:

    [email]

    from = Joseph User <joe.user@example.com>

    method = /usr/sbin/sendmail

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.

  Example for ~/.hgrc:

    [extensions]

    # (the mq extension will get loaded from mercurial's path)

    hgext.mq =

    # (this extension will get loaded from the file specified)

    myfeature = ~/.hgext/myfeature.py

format::

  usestore;;

    Enable or disable the "store" repository format which improves

    compatibility with systems that fold case or otherwise mangle

    filenames. Enabled by default. Disabling this option will allow

    you to store longer filenames in some situations at the expense of

    compatibility.

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.

  Example .hg/hgrc:

    [hooks]

    # do not use the site-wide hook

    incoming =

    incoming.email = /my/email/hook

    incoming.autobuild = /my/build/hook

  Most hooks are run with environment variables set that give added

  useful information.  For each hook below, the environment variables

  it is passed are listed with names of the form "$HG_foo".

  changegroup;;

    Run after a changegroup has been added via push, pull or

    unbundle. ID of the first new changeset is in $HG_NODE.  URL from

    which changes came is in $HG_URL.

  commit;;

    Run after a changeset has been created in the local repository.

    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.  URL that was source of changes came is in $HG_URL.

  outgoing;;

    Run after sending changes from local repository to another.  ID of

    first changeset sent is in $HG_NODE.  Source of operation is in

    $HG_SOURCE; see "preoutgoing" hook for description.

  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. Hook failure is ignored.

  pre-<command>;;

    Run before executing the associated command. The contents of the

    command line are passed as $HG_ARGS. 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.  Non-zero status

    will cause the push, pull or unbundle to fail.  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.  Non-zero status will cause the commit to fail.

    Parent changeset IDs are in $HG_PARENT1 and $HG_PARENT2.

  preoutgoing;;

    Run before collecting changes to send from the local repository to

    another.  Non-zero status will cause failure.  This lets you

    prevent pull over http or ssh.  Also prevents against local pull,

    push (outbound) or bundle commands, but not effective, since you

    can just copy files instead then.  Source of operation is in

    $HG_SOURCE.  If "serve", operation is happening on behalf of

    remote ssh or http repository.  If "push", "pull" or "bundle",

    operation is happening on behalf of repository on same system.

  pretag;;

    Run before creating a tag.  Exit status 0 allows the tag to be

    created.  Non-zero status will cause the tag to fail.  ID of

    changeset to tag is in $HG_NODE.  Name of tag is in $HG_TAG.  Tag

    is local if $HG_LOCAL=1, in repo if $HG_LOCAL=0.

  pretxnchangegroup;;

    Run after a changegroup has been added via push, pull or unbundle,

    but before the transaction has been committed.  Changegroup is

    visible to hook program.  This lets you validate incoming changes

    before accepting them.  Passed the ID of the first new changeset

    in $HG_NODE.  Exit status 0 allows the transaction to commit.

    Non-zero status will cause the transaction to be rolled back and

    the push, pull or unbundle will fail.  URL that was source of

    changes is in $HG_URL.

  pretxncommit;;

    Run after a changeset has been created but the transaction not yet

    committed.  Changeset is visible to hook program.  This lets you

    validate commit message and changes.  Exit status 0 allows the

    commit to proceed.  Non-zero status will cause the transaction to

    be rolled back.  ID of changeset is in $HG_NODE.  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.  Non-zero status will prevent the update.

    Changeset ID of first new parent is in $HG_PARENT1.  If merge, ID

    of second new parent is in $HG_PARENT2.

  tag;;

    Run after a tag is created.  ID of tagged changeset is in

    $HG_NODE.  Name of tag is in $HG_TAG.  Tag is local if

    $HG_LOCAL=1, in repo if $HG_LOCAL=0.

  update;;

    Run after updating the working directory.  Changeset ID of first

    new parent is in $HG_PARENT1.  If merge, ID of second new parent

    is in $HG_PARENT2.  If update succeeded, $HG_ERROR=0.  If update

    failed (e.g. because conflicts 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 (eg. tag) and not just the commit command.

  Note2: Environment variables with empty values may not be passed to

  hooks on platforms like Windows. For instance, $HG_PARENT2 will

  not be available under Windows for non-merge changesets while being

  set to an empty value under Unix-like systems.

  The syntax for Python hooks is as follows:

    hookname = python:modulename.submodule.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 failure of the hook.

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.

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: 25.

  tls;;

    Optional.  Whether to connect to mail server using TLS.  True or

    False.  Default: False.

  username;;

    Optional.  User name to authenticate to SMTP server with.

    If username is specified, password must also be specified.

    Default: none.

  password;;

    Optional.  Password to authenticate to SMTP server with.

    If username is specified, password must also be specified.

    Default: none.

  local_hostname;;

    Optional.  It's the hostname that the sender can use to identify itself

    to the MTA.

paths::

  Assigns symbolic names to repositories.  The left side is the

  symbolic name, and the right gives the directory or URL that is the

  location of the repository.  Default paths can be declared by

  setting the following entries.

  default;;

    Directory or URL to use when pulling if no source is specified.

    Default is set to repository from which the current repository

    was cloned.

  default-push;;

    Optional.  Directory or URL to use when pushing if no destination

    is specified.

server::

  Controls generic server settings.

  uncompressed;;

    Whether to allow clients to clone a repo 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 (100Mbps 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

    6Mbps), uncompressed streaming is slower, because of the extra

    data transfer overhead.  Default is False.

trusted::

  For security reasons, 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.  The main exception is the

  web interface, which automatically uses some safe settings, since

  it's common to serve repositories from different users.

  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 "*".

  users;;

    Comma-separated list of trusted users.

  groups;;

    Comma-separated list of trusted groups.

ui::

  User interface controls.

  debug;;

    Print debugging information.  True or False.  Default is False.

  editor;;

    The editor to use during a commit.  Default is $EDITOR or "vi".

  fallbackencoding;;

    Encoding to try if it's not possible to decode the changelog using

    UTF-8.  Default is ISO-8859-1.

  ignore;;

    A file to read per-user ignore patterns from. This file should be in

    the same format as a repository-wide .hgignore file. 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.  True or False.  Default is True.

  logtemplate;;

    Template string for commands that print changesets.

  merge;;

    The conflict resolution program to use during a manual merge.

    Default is "hgmerge".

  patch;;

    command to use to apply patches. Look for 'gpatch' or 'patch' in PATH if

    unset.

  quiet;;

    Reduce the amount of output printed.  True or False.  Default is False.

  remotecmd;;

    remote command to use for clone/push/pull operations. Default is 'hg'.

  report_untrusted;;

    Warn if a .hg/hgrc file is ignored due to not being owned by a

    trusted user or group.  True or False.  Default is True.

  slash;;

    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 is False.

  ssh;;

    command to use for SSH connections. Default is 'ssh'.

  strict;;

    Require exact command names, instead of allowing unambiguous

    abbreviations.  True or False.  Default is False.

  style;;

    Name of style to use for command output.

  timeout;;