annotate doc/hgignore.5.txt @ 9127:35c3f94233a0

hgignore.5.txt: improved description of matching

Improved the description of the matching behavior used with .hgignore.
Made some minor language improvements.

HGIGNORE(5)
===========
Vadim Gelfer <[e-mail]>
:man source: Mercurial
:man manual: Mercurial Manual

NAME
----
hgignore - syntax for Mercurial ignore files

SYNOPSIS
--------

The Mercurial system uses a file called `.hgignore` in the root
directory of a repository to control its behavior when it searches
for files that it is not currently tracking.

DESCRIPTION
-----------

An untracked file is ignored if its path relative to the repository
root directory, or any prefix path of that path, is matched against
any pattern in `.hgignore`.

For example, say we have an an untracked file, `file.c`, at 
`a/b/file.c` inside our repository. Mercurial will ignore `file.c` if
any pattern in `.hgignore` matches `a/b/file.c`, `a/b` or `a`.

In addition, a Mercurial configuration file can reference a set of
per-user or global ignore files. See the hgrc(5) man page for details
of how to configure these files. Look for the "ignore" entry in the
"ui" section.

To control Mercurial's handling of files that it manages, see the
hg(1) man page. Look for the "-I" and "-X" options.

SYNTAX
------

An ignore file is a plain text file consisting of a list of patterns,
with one pattern per line. Empty lines are skipped. The "`#`"
character is treated as a comment character, and the "`\`" character
is treated as an escape character.

Mercurial supports several pattern syntaxes. The default syntax used
is Python/Perl-style regular expressions.

To change the syntax used, use a line of the following form:

syntax: NAME

where NAME is one of the following:

regexp::
  Regular expression, Python/Perl syntax.
glob::
  Shell-style glob.

The chosen syntax stays in effect when parsing all patterns that
follow, until another syntax is selected.

Neither glob nor regexp patterns are rooted. A glob-syntax pattern of
the form "`*.c`" will match a file ending in "`.c`" in any directory,
and a regexp pattern of the form "`\.c$`" will do the same. To root a
regexp pattern, start it with "`^`".

EXAMPLE
-------

Here is an example ignore file.

  # use glob syntax.
  syntax: glob

  *.elc
  *.pyc
  *~

  # switch to regexp syntax.
  syntax: regexp
  ^\.pc/

AUTHOR
------
Vadim Gelfer <[e-mail]>

Mercurial was written by Matt Mackall <[e-mail]>.

SEE ALSO
--------
hg(1), hgrc(5)

COPYING
-------
This manual page is copyright 2006 Vadim Gelfer.
Mercurial is copyright 2005-2009 Matt Mackall.
Free use of this software is granted under the terms of the GNU General
Public License (GPL).