HG(1)
=====
Matt Mackall <mpm@selenic.com>
v0.6, 24 Jun 2005

NAME
----
hg - Mercurial source code management system

SYNOPSIS
--------
'hg' [-v -d -q -y] <command> [command options] [files]

DESCRIPTION
-----------
The hg(1) command provides a command line interface to the Mercurial system.

OPTIONS
-------

--debug, -d::
    enable debugging output

--quiet, -q::
    suppress output

--verbose, -v::
    enable additional output

--noninteractive, -y::
    do not prompt, assume 'yes' for any required answers

COMMAND ELEMENTS
----------------

files ...::
    indicates one or more filename or relative path filenames

path::
    indicates a path on the local machine

revision::
    indicates a changeset which can be specified as a changeset revision
    number, a tag, or a unique substring of the changeset hash value

repository path::
    is either the pathname of a local repository of the URI of a remote
    repository.  There are two available URI protocols, http:// which is
    fast and the old-http:// protocol which is much slower but does not
    require a special server on the web host.

COMMANDS
--------

add [files ...]::
    Add the given files to the repository.  Note that this just schedules the
    files for addition at the next hg commit time.

addremove::
    Add all new files and remove all missing files from the repository.  New
    files are ignored if they match any of the patterns in .hgignore

annotate [-r <rev> -u -n -c] [files ...]::
    List the files with each line showing the revision id responsible
    for that line.

    options:
    -r, --revision <rev>  annotate the specified revision
    -u, --user            list the author
    -c, --changeset       list the changeset
    -n, --number          list the revision number (default)

cat <file> [revision]::
    Output the given revision or tip of the specified file to stdout.

clone [-U] <source> [dest]::
    Create a new copy of an existing repository.

    If the specified source is on the same filesystem, the repository
    will be copied via hardlinks. This is the fastest and most
    space-efficient mode of operation.

    If the destination directory is not specified, it defaults to the
    current directory.

    If the destination is specified, but does not exist, it is created.

    The source is added to .hg/hgrc in the new copy as the default for
    future pulls.

    options:
    -U, --no-update   do not update the new working directory

commit [-A -t -l <file> -t <text> -u <user> -d <datecode>] [files...]::
    Commit all changed files in the working dir to the repository.  This uses
    the EDITOR environment variable to bring up an editor to add a commit
    comment.

    Options:

    -A, --addremove       run addremove during commit
    -t, --text <text>     use <text> as commit message
    -l, --logfile <file>  read the commit message from the specified
                          file
    -d, --date <datecode> use the specified date code
    -u, --user <user>     record commit as the specified user

    aliases: ci

copy <source> <dest>::
    Mark a file as copied or renamed for the next commit.

diff [-r revision] [-r revision] [files ...]::
    Generate a unified diff of the indicated files. If there are no
    revisions specified, the working directory file is compared to
    the tip, one revision specified indicates a comparison between the
    working directory file and the specified revision, and two revisions
    compares the two versions specified.

export [revision]::
    Print the changeset header (author, changeset hash, parent, and commit
    comment) and the diffs for a particular revision.

forget [files]::
    Undo an 'hg add' scheduled for the next commit.

heads::
    Show all changesets with no children. These are the "heads" of
    development branches and are the usual targets for updates and merges.

history::
    Print the revision history of the repository. Use the -v switch
    for more detail.

identify::
    Print a short identifier of the current state of the repo. This
    includes one or two parent hash identifiers, followed by
    a "+" if there are uncommitted changes in the working directory,
    followed by a list of tags for this revision.

    aliases: id

import [-p <n> -b <base> -q] <patches>::
    Import the listed patches and commit them individually.

    options:
    -p, --strip <n>   directory strip option for patch
    -b <path>         base directory to read patches from

    aliases: patch

init [-u] [source]::
    Initialize a repository in the current directory.

    NOTE: The following use is deprecated, and will be removed soon;
    use the "hg clone" command instead.

    If a source is specified, pull that source into the repository.
    This source is added to .hg/hgrc as the default for future pulls
    in this repository.

    If the specified source is on the same filesystem, the repository
    will be copied via hardlinks. This is the fastest and most
    space-efficient mode of operation.

    options:
    -u, --update   update the working directory to match the tip

log <file>::
    Print the revision history of the specified file.

manifest [revision]::
    Print the indicated revision of the manifest (list of version controlled
    files).

parents::
    Print the working directory's parent revisions.

pull <repository path>::
    Pull any changes from the specified repository to the repository in the
    current directory.

    options:
    -u, --update   update the working directory to tip after pull

push <destination>::
    Push changes from the local repository to the specified
    destination. If the destination is local, this is identical to a
    a pull in that directory from the current directory.

    The other currently available push method is SSH. This requires an
    accessible shell account on the destination machine and a copy of
    hg in the remote path. Destinations are specified in the following
    form:

      ssh://[user@]host[:port]/path

rawcommit [-p -d -u -F -t -l]::
    Primarily useful for importing from other SCMs.

recover::
    Recover from an interrupted commit or pull. This should only be
    necessary when Mercurial suggests it.

remove [files ...]::
    Schedule the indicated files for removal from the repository at the next
    commit.

    aliases: rm

root::
    Print the root directory of the current repository.

serve [-a addr -n name -p port -t templatedir]::
    Start a local HTTP repository browser and pull server.

    options:
    -a, --address <addr> address to use
    -p, --port <n>       port to use (default: 8000)
    -n, --name <name>    name to show in web pages (default: working dir)
    -t, --templatedir <path> web templates to use

status::
    Show changed files in the working directory.

    C = changed
    A = added
    R = removed
    ? = not tracked

tag [-t <text> -d <datecode> -u <user>] <name> [revision]::
    Add a tag <name> to the specified revision or the tip.

    options:
    -t, --text <text>     message for tag commit log entry
    -d, --date <datecode> datecode for commit
    -u, --user <user>     user for commit

tags::
    List the repository tags.

tip::
    Show the tip revision.

undo::
    Undo the last commit or pull transaction.

update [-m -C] [revision]::
    Update or merge the working directory to a specified revision.

    If there are no outstanding changes in the working directory and
    there is a linear relationship between the current version and the
    requested version, the result is the requested version.

    Otherwise the result is a merge between the contents of the
    current working directory and the requested version. Files that
    changed between either parent are marked as changed for the next
    commit and a commit must be performed before any further updates
    are allowed. Merging will not be performed without the -m flag.

    The -C switch will tell Mercurial to forcibly update to the
    specified version, adding, removing, and overwriting locally
    changed fils as necessary.

    options:
    -m, --merge       allow merging of branches
    -C, --clean       overwrite locally modified files

    aliases: up checkout co

verify::
    Verify the integrity of the current repository.

    This will perform an extensive check of the repository's
    integrity, validating the hashes and checksums of each entry in
    the changelog, manifest, and tracked files, as well as the
    integrity of their crosslinks and indices.


ENVIRONMENT VARIABLES
---------------------

HGEDITOR::
    This is the name of the editor to use when committing. Defaults to the
    value of EDITOR.

HGMERGE::
    An executable to use for resolving merge conflicts. The program ,
    will be executed with three arguments: local file, remote file,
    ancestor file.

    The default program is "hgmerge", which is a shell script provided
    by Mercurial with some sensible defaults.

HGUSER::
    This is the string used for the author of a commit.

EMAIL::
    If HGUSER is not set, this will be used as the author for a commit.

LOGNAME::
    If neither HGUSER nor EMAIL is set, LOGNAME will be used (with
    '@hostname' appended) as the author value for a commit.

EDITOR::
    This is the name of the editor used in the hgmerge script. It will be
    used for commit messages, too, if HGEDITOR isn't set. Defaults to 'vi'.

PYTHONPATH::
    This is used by Python to find imported modules and may need to be set
    appropriately if Mercurial is not installed system-wide.

FILES
-----
 .hgignore::
    This file contains regular expressions (one per line) that describe file
    names that should be ignored by hg.

 .hgtags::
    This file contains changeset hash values and text tag names (one of each
    seperated by spaces) that correspond to tagged versions of the repository
    contents.

 $HOME/.hgrc, .hg/hgrc::
    This file contains defaults and configuration. Values in .hg/hgrc
    override those in .hgrc.

NAMED REPOSITORIES
------------------

To give symbolic names to a repository, create a section in .hgrc
or .hg/hgrc containing assignments of names to paths. Example:

-----------------
[paths]
hg = http://selenic.com/hg
tah = http://hg.intevation.org/mercurial-tah/
-----------------


HOOKS
-----

Mercurial supports a set of 'hook', commands that get automatically
executed by various actions such as starting or finishing a commit. To
specify a hook, simply create an hgrc section like the following:

-----------------
[hooks]
precommit = echo "this hook gets executed immediately before a commit"
commit = hg export $NODE | mail -s "new commit $NODE" commit-list
-----------------


NON_TRANSPARENT PROXY SUPPORT
-----------------------------

To access a Mercurial repository through a proxy, create a file
$HOME/.hgrc in the following format:

--------------
[http_proxy]
host=myproxy:8080
user=<username>
passwd=<password>
no=<localhost1>,<localhost2>,<localhost3>,...
--------------

"user","passwd" fields are used for authenticating proxies, "no" is a
comma-separated list of local host names for which proxy must be
bypassed.


BUGS
----
Probably lots, please post them to the mailing list (See Resources below)
when you find them.

AUTHOR
------
Written by Matt Mackall <mpm@selenic.com>

RESOURCES
---------
http://selenic.com/mercurial[Main Web Site]

http://selenic.com/hg[Source code repository]

http://selenic.com/mailman/listinfo/mercurial[Mailing list]

COPYING
-------
Copyright (C) 2005 Matt Mackall.
Free use of this software is granted under the terms of the GNU General
Public License (GPL).