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git/Documentation/git-symbolic-ref.txt
Stephan Beyer 3240240ff4 Docs: Use "-l::\n--long\n" format in OPTIONS sections
The OPTIONS section of a documentation file contains a list
of the options a git command accepts.

Currently there are several variants to describe the case that
different options (almost) do the same in the OPTIONS section.

Some are:

 -f, --foo::
 -f|--foo::
 -f | --foo::

But AsciiDoc has the special form:

 -f::
 --foo::

This patch applies this form to the documentation of the whole git suite,
and removes useless em-dash prevention, so \--foo becomes --foo.

Signed-off-by: Stephan Beyer <s-beyer@gmx.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-06-08 13:46:38 -07:00

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git-symbolic-ref(1)
===================
NAME
----
git-symbolic-ref - Read and modify symbolic refs
SYNOPSIS
--------
'git-symbolic-ref' [-q] [-m <reason>] <name> [<ref>]
DESCRIPTION
-----------
Given one argument, reads which branch head the given symbolic
ref refers to and outputs its path, relative to the `.git/`
directory. Typically you would give `HEAD` as the <name>
argument to see on which branch your working tree is on.
Give two arguments, create or update a symbolic ref <name> to
point at the given branch <ref>.
A symbolic ref is a regular file that stores a string that
begins with `ref: refs/`. For example, your `.git/HEAD` is
a regular file whose contents is `ref: refs/heads/master`.
OPTIONS
-------
-q::
--quiet::
Do not issue an error message if the <name> is not a
symbolic ref but a detached HEAD; instead exit with
non-zero status silently.
-m::
Update the reflog for <name> with <reason>. This is valid only
when creating or updating a symbolic ref.
NOTES
-----
In the past, `.git/HEAD` was a symbolic link pointing at
`refs/heads/master`. When we wanted to switch to another branch,
we did `ln -sf refs/heads/newbranch .git/HEAD`, and when we wanted
to find out which branch we are on, we did `readlink .git/HEAD`.
This was fine, and internally that is what still happens by
default, but on platforms that do not have working symlinks,
or that do not have the `readlink(1)` command, this was a bit
cumbersome. On some platforms, `ln -sf` does not even work as
advertised (horrors). Therefore symbolic links are now deprecated
and symbolic refs are used by default.
git-symbolic-ref will exit with status 0 if the contents of the
symbolic ref were printed correctly, with status 1 if the requested
name is not a symbolic ref, or 128 if another error occurs.
Author
------
Written by Junio C Hamano <junkio@cox.net>
GIT
---
Part of the linkgit:git[1] suite