137 lines
5.0 KiB
Plaintext
137 lines
5.0 KiB
Plaintext
GIT repository layout
|
|
=====================
|
|
v0.99.5, Sep 2005
|
|
|
|
You may find these things in your git repository (`.git`
|
|
directory for a repository associated with your working tree, or
|
|
`'project'.git` directory for a public 'naked' repository).
|
|
|
|
objects::
|
|
Object store associated with this repository. Usually
|
|
an object store is self sufficient (i.e. all the objects
|
|
that are referred to by an object found in it are also
|
|
found in it), but there are couple of ways to violate
|
|
it.
|
|
+
|
|
. You could populate the repository by running a commit walker
|
|
without `-a` option. Depending on which options are given, you
|
|
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 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
|
|
of incompete object store is not suitable to be published for
|
|
use with dumb transports but otherwise is OK as long as
|
|
`objects/info/alternates` points at the right object stores
|
|
it borrows from.
|
|
|
|
objects/[0-9a-f][0-9a-f]::
|
|
Traditionally, each object is stored in its own file.
|
|
They are split into 256 subdirectories using the first
|
|
two letters from its object name to keep the number of
|
|
directory entries `objects` directory itself needs to
|
|
hold. Objects found here are often called 'unpacked'
|
|
objects.
|
|
|
|
objects/pack::
|
|
Packs (files that store many object in compressed form,
|
|
along with index files to allow them to be randomly
|
|
accessed) are found in this directory.
|
|
|
|
objects/info::
|
|
Additional information about the object store is
|
|
recorded in this directory.
|
|
|
|
objects/info/packs::
|
|
This file is to help dumb transports discover what packs
|
|
are available in this object store. Whenever a pack is
|
|
added or removed, `git update-server-info` should be run
|
|
to keep this file up-to-date if the repository is
|
|
published for dumb transports. `git repack` does this
|
|
by default.
|
|
|
|
objects/info/alternates::
|
|
This file records absolute filesystem paths of alternate
|
|
object stores that this object store borrows objects
|
|
from, one pathname per line.
|
|
|
|
refs::
|
|
References are stored in subdirectories of this
|
|
directory. The `git prune` command knows to keep
|
|
objects reachable from refs found in this directory and
|
|
its subdirectories.
|
|
|
|
refs/heads/`name`::
|
|
records tip-of-the-tree commit objects of branch `name`
|
|
|
|
refs/tags/`name`::
|
|
records any object name (not necessarily a commit
|
|
object, or a tag object that points at a commit object).
|
|
|
|
HEAD::
|
|
A symlink of the form `refs/heads/'name'` to point at
|
|
the current branch, if exists. It does not mean much if
|
|
the repository is not associated with any working tree
|
|
(i.e. 'naked' repository), but a valid git repository
|
|
*must* have such a symlink here. It is legal if the
|
|
named branch 'name' does not (yet) exist.
|
|
|
|
branches::
|
|
A slightly deprecated way to store shorthands to be used
|
|
to specify URL to `git fetch`, `git pull` and `git push`
|
|
commands is to store a file in `branches/'name'` and
|
|
give 'name' to these commands in place of 'repository'
|
|
argument.
|
|
|
|
hooks::
|
|
Hooks are customization scripts used by various git
|
|
commands. A handful of sample hooks are installed when
|
|
`git init-db` is run, but all of them are disabled by
|
|
default. To enable, they need to be made executable.
|
|
|
|
index::
|
|
The current index file for the repository. It is
|
|
usually not found in a naked repository.
|
|
|
|
info::
|
|
Additional information about the repository is recorded
|
|
in this directory.
|
|
|
|
info/refs::
|
|
This file is to help dumb transports to discover what
|
|
refs are available in this repository. Whenever you
|
|
create/delete a new branch or a new tag, `git
|
|
update-server-info` should be run to keep this file
|
|
up-to-date if the repository is published for dumb
|
|
transports. The `git-receive-pack` command, which is
|
|
run on a remote repository when you `git push` into it,
|
|
runs `hooks/update` hook to help you achive this.
|
|
|
|
info/grafts::
|
|
This file records fake commit ancestry information, to
|
|
pretend the set of parents a commit has is different
|
|
from how the commit was actually created. One record
|
|
per line describes a commit and its fake parents by
|
|
listing their 40-byte hexadecimal object names separated
|
|
by a space and terminated by a newline.
|
|
|
|
info/rev-cache::
|
|
No higher-level tool currently takes advantage of this
|
|
file, but it is generated when `git update-server-info`
|
|
is run. It records the commit ancestry information of
|
|
the commits in this repository in a concise binary
|
|
format, and can be read with `git-show-rev-cache`.
|
|
|
|
info/exclude::
|
|
This file, by convention among Porcelains, stores the
|
|
exclude pattern list. `git status` looks at it, but
|
|
otherwise it is not looked at by any of the core GIT
|
|
commands.
|
|
|
|
remotes::
|
|
Stores shorthands to be used to give URL and default
|
|
refnames to interact with remote repository to `git
|
|
fetch`, `git pull` and `git push` commands.
|