git.txt: de-emphasize the implementation detail of a ref

It is an unimportant implementation detail that branches and tags are
stored somewhere under $GIT_DIR/refs directory, or the name of the commit
that will become the parent of the next commit is stored in $GIT_DIR/HEAD.

What is more important is that branches live in refs/heads and tags live
in refs/tags hierarchy in the ref namespace, and HEAD means the tip of the
current branch.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Junio C Hamano 2011-06-23 09:35:10 -07:00
Родитель a0a7e9e511
Коммит 0abcfbff4d
1 изменённых файлов: 3 добавлений и 4 удалений

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@ -510,16 +510,15 @@ Any git command accepting any <object> can also use the following
symbolic notation:
HEAD::
indicates the head of the current branch (i.e. the
contents of `$GIT_DIR/HEAD`).
indicates the head of the current branch.
<tag>::
a valid tag 'name'
(i.e. the contents of `$GIT_DIR/refs/tags/<tag>`).
(i.e. a `refs/tags/<tag>` reference).
<head>::
a valid head 'name'
(i.e. the contents of `$GIT_DIR/refs/heads/<head>`).
(i.e. a `refs/heads/<head>` reference).
For a more complete list of ways to spell object names, see
"SPECIFYING REVISIONS" section in linkgit:gitrevisions[7].