Documentation: describe shallow repository

Signed-off-by: Junio C Hamano <junkio@cox.net>
This commit is contained in:
Junio C Hamano 2007-01-17 10:53:31 -08:00
parent df59afe3eb
commit 428ddc5de6
2 changed files with 20 additions and 0 deletions

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@ -286,6 +286,18 @@ SCM::
SHA1::
Synonym for object name.
shallow repository::
A shallow repository has an incomplete history some of
whose commits have parents cauterized away (in other
words, git is told to pretend that these commits do not
have the parents, even though they are recorded in the
commit object). This is sometimes useful when you are
interested only in the recent history of a project even
though the real history recorded in the upstream is
much larger. A shallow repository is created by giving
`--depth` option to gitlink:git-clone[1], and its
history can be later deepened with gitlink:git-fetch[1].
symref::
Symbolic reference: instead of containing the SHA1 id itself, it
is of the format 'ref: refs/some/thing' and when referenced, it

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@ -18,6 +18,8 @@ could have only commit objects without associated blobs and
trees this way, for example. A repository with this kind of
incomplete object store is not suitable to be published to the
outside world but sometimes useful for private repository.
. You also could have an incomplete but locally usable repository
by cloning shallowly. See gitlink:git-clone[1].
. You can be using `objects/info/alternates` mechanism, or
`$GIT_ALTERNATE_OBJECT_DIRECTORIES` mechanism to 'borrow'
objects from other object stores. A repository with this kind
@ -162,3 +164,9 @@ logs/refs/heads/`name`::
logs/refs/tags/`name`::
Records all changes made to the tag named `name`.
shallow::
This is similar to `info/grafts` but is internally used
and maintained by shallow clone mechanism. See `--depth`
option to gitlink:git-clone[1] and gitlink:git-fetch[1].