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. *.rc files from a single directory are read in

alphabetical order, later ones overriding earlier ones. Where

multiple paths are given below, settings from later paths override

earlier ones.

(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. <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.

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

(Unix) /etc/mercurial/hgrc::

    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.

(Windows) <install-dir>\Mercurial.ini::

  or else::

(Windows) HKEY_LOCAL_MACHINE\SOFTWARE\Mercurial::

  or else::

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

    Per-installation/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.

    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.

(Unix) $HOME/.hgrc::

(Windows) %HOME%\Mercurial.ini::

(Windows) %HOME%\.hgrc::

(Windows) %USERPROFILE%\Mercurial.ini::

(Windows) %USERPROFILE%\.hgrc::

    Per-user configuration file(s), for the user running Mercurial.

    On Windows 9x, %HOME% is replaced by %APPDATA%.

    Options in these files apply to all Mercurial commands executed

    by this user in any directory. Options in thes files override

    per-installation and per-system options.

(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]]

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]]

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]]

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]]

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.

  charsets;;

    Optional. Comma-separated list of charsets considered

    convenient for recipients. Addresses, headers, and parts not

    containing patches of outgoing messages will be encoded in

    the first charset to which conversion from local encoding

    ($HGENCODING, ui.fallbackencoding) succeeds. If correct

    conversion fails, the text in question is sent as is.

    Defaults to empty (explicit) list.

  Order of outgoing email charsets:

    us-ascii             always first, regardless of settings

    email.charsets       in order given by user

    ui.fallbackencoding  if not in email.charsets

    $HGENCODING          if not in email.charsets

    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]]

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

  'hgext.foo = !/ext/path' or 'hgext.foo = !' when no path is supplied.

  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]]

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 and ensures that the on-disk format of newly created

    repositories will be compatible with Mercurial before version 0.9.4.

  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". Enabled by default. Disabling this option ensures

    that the on-disk format of newly created repositories will be

    compatible with Mercurial before version 1.1.

[[merge-patterns]]

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]]

merge-tools::

  This section configures external merge tools to use for file-level

  merges.

  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

    # 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.

    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.

    Default: $local $base $other

  premerge;;

    Attempt to run internal non-interactive 3-way merge tool before

    launching external tool.

    Default: True

  binary;;

    This tool can merge binary files. Defaults to False, unless tool

    was selected by file pattern match.

  symlink;;

    This tool can merge symlinks. Defaults to False, even if tool was

    selected by file pattern match.

  checkconflicts;;

    Check whether there are conflicts even though the tool reported

    success.

    Default: False

  checkchanged;;

    Check whether outputs were written even though the tool reported

    success.

    Default: False

  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

  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

  regname;;

    Name of value to read from specified registry key. Defaults to the

    unnamed (default) value.

  regappend;;

    String to append to the value read from the registry, typically the

    executable name of the tool. Default: None

[[hooks]]

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.