- add [-b <branch>] [-f|--force] [--name <name>] [--reference <repository>] [--depth <depth>] [--] <repository> [<path>]
Add the given repository as a submodule at the given path to the changeset to be committed next to the current project: the current project is termed the "superproject".
This requires at least one argument: <repository>. The optional argument <path> is the relative location for the cloned submodule to exist in the superproject. If <path> is not given, the "humanish" part of the source repository is used ("repo" for "/path/to/repo.git" and "foo" for "host.xz:foo/.git"). The <path> is also used as the submodule’s logical name in its configuration entries unless
--name is used to specify a logical name.
<repository> is the URL of the new submodule’s origin repository. This may be either an absolute URL, or (if it begins with ./ or ../), the location relative to the superproject’s default remote repository (Please note that to specify a repository
foo.git which is located right next to a superproject
bar.git, you’ll have to use
../foo.git instead of
./foo.git - as one might expect when following the rules for relative URLs - because the evaluation of relative URLs in Git is identical to that of relative directories).
The default remote is the remote of the remote tracking branch of the current branch. If no such remote tracking branch exists or the HEAD is detached, "origin" is assumed to be the default remote. If the superproject doesn’t have a default remote configured the superproject is its own authoritative upstream and the current working directory is used instead.
<path> is the relative location for the cloned submodule to exist in the superproject. If <path> does not exist, then the submodule is created by cloning from the named URL. If <path> does exist and is already a valid Git repository, then this is added to the changeset without cloning. This second form is provided to ease creating a new submodule from scratch, and presumes the user will later push the submodule to the given URL.
In either case, the given URL is recorded into .gitmodules for use by subsequent users cloning the superproject. If the URL is given relative to the superproject’s repository, the presumption is the superproject and submodule repositories will be kept together in the same relative location, and only the superproject’s URL needs to be provided: git-submodule will correctly locate the submodule using the relative URL in .gitmodules.
- status [--cached] [--recursive] [--] [<path>…]
Show the status of the submodules. This will print the SHA-1 of the currently checked out commit for each submodule, along with the submodule path and the output of
git describe for the SHA-1. Each SHA-1 will be prefixed with
- if the submodule is not initialized,
+ if the currently checked out submodule commit does not match the SHA-1 found in the index of the containing repository and
U if the submodule has merge conflicts.
--recursive is specified, this command will recurse into nested submodules, and show their status as well.
If you are only interested in changes of the currently initialized submodules with respect to the commit recorded in the index or the HEAD, git-status and git-diff will provide that information too (and can also report changes to a submodule’s work tree).
- init [--] [<path>…]
Initialize the submodules recorded in the index (which were added and committed elsewhere) by setting
submodule.$name.url in .git/config. It uses the same setting from .gitmodules as a template. If the URL is relative, it will be resolved using the default remote. If there is no default remote, the current repository will be assumed to be upstream.
Optional <path> arguments limit which submodules will be initialized. If no path is specified and submodule.active has been configured, submodules configured to be active will be initialized, otherwise all submodules are initialized.
When present, it will also copy the value of
submodule.$name.update. This command does not alter existing information in .git/config. You can then customize the submodule clone URLs in .git/config for your local setup and proceed to
git submodule update; you can also just use
git submodule update --init without the explicit
init step if you do not intend to customize any submodule locations.
See the add subcommand for the defintion of default remote.
- deinit [-f|--force] (--all|[--] <path>…)
Unregister the given submodules, i.e. remove the whole
submodule.$name section from .git/config together with their work tree. Further calls to
git submodule update,
git submodule foreach and
git submodule sync will skip any unregistered submodules until they are initialized again, so use this command if you don’t want to have a local checkout of the submodule in your working tree anymore. If you really want to remove a submodule from the repository and commit that use git-rm instead.
When the command is run without pathspec, it errors out, instead of deinit-ing everything, to prevent mistakes.
--force is specified, the submodule’s working tree will be removed even if it contains local modifications.
- update [--init] [--remote] [-N|--no-fetch] [--[no-]recommend-shallow] [-f|--force] [--checkout|--rebase|--merge] [--reference <repository>] [--depth <depth>] [--recursive] [--jobs <n>] [--] [<path>…]
Update the registered submodules to match what the superproject expects by cloning missing submodules and updating the working tree of the submodules. The "updating" can be done in several ways depending on command line options and the value of
submodule.<name>.update configuration variable. The command line option takes precedence over the configuration variable. if neither is given, a checkout is performed. update procedures supported both from the command line as well as setting
the commit recorded in the superproject will be checked out in the submodule on a detached HEAD.
--force is specified, the submodule will be checked out (using
git checkout --force if appropriate), even if the commit specified in the index of the containing repository already matches the commit checked out in the submodule.
the current branch of the submodule will be rebased onto the commit recorded in the superproject.
the commit recorded in the superproject will be merged into the current branch in the submodule.
The following procedures are only available via the
submodule.<name>.update configuration variable:
- custom command
arbitrary shell command that takes a single argument (the sha1 of the commit recorded in the superproject) is executed. When
submodule.<name>.update is set to
!command, the remainder after the exclamation mark is the custom command.
the submodule is not updated.
If the submodule is not yet initialized, and you just want to use the setting as stored in .gitmodules, you can automatically initialize the submodule with the
--recursive is specified, this command will recurse into the registered submodules, and update any nested submodules within.
- summary [--cached|--files] [(-n|--summary-limit) <n>] [commit] [--] [<path>…]
Show commit summary between the given commit (defaults to HEAD) and working tree/index. For a submodule in question, a series of commits in the submodule between the given super project commit and the index or working tree (switched by
--cached) are shown. If the option
--files is given, show the series of commits in the submodule between the index of the super project and the working tree of the submodule (this option doesn’t allow to use the
--cached option or to provide an explicit commit).
--submodule=log option with git-diff will provide that information too.
- foreach [--recursive] <command>
Evaluates an arbitrary shell command in each checked out submodule. The command has access to the variables $name, $path, $sha1 and $toplevel: $name is the name of the relevant submodule section in .gitmodules, $path is the name of the submodule directory relative to the superproject, $sha1 is the commit as recorded in the superproject, and $toplevel is the absolute path to the top-level of the superproject. Any submodules defined in the superproject but not checked out are ignored by this command. Unless given
--quiet, foreach prints the name of each submodule before evaluating the command. If
--recursive is given, submodules are traversed recursively (i.e. the given shell command is evaluated in nested submodules as well). A non-zero return from the command in any submodule causes the processing to terminate. This can be overridden by adding
|| : to the end of the command.
As an example, the command below will show the path and currently checked out commit for each submodule:
git submodule foreach 'echo $path `git rev-parse HEAD`'
- sync [--recursive] [--] [<path>…]
Synchronizes submodules' remote URL configuration setting to the value specified in .gitmodules. It will only affect those submodules which already have a URL entry in .git/config (that is the case when they are initialized or freshly added). This is useful when submodule URLs change upstream and you need to update your local repositories accordingly.
"git submodule sync" synchronizes all submodules while "git submodule sync -- A" synchronizes submodule "A" only.
--recursive is specified, this command will recurse into the registered submodules, and sync any nested submodules within.
If a git directory of a submodule is inside the submodule, move the git directory of the submodule into its superprojects
$GIT_DIR/modules path and then connect the git directory and its working directory by setting the
core.worktree and adding a .git file pointing to the git directory embedded in the superprojects git directory.
A repository that was cloned independently and later added as a submodule or old setups have the submodules git directory inside the submodule instead of embedded into the superprojects git directory.
This command is recursive by default.