SYNOPSIS
--------
[verse]
-'git submodule' [--quiet] add [-b branch] [--] <repository> <path>
+'git submodule' [--quiet] add [-b branch]
+ [--reference <repository>] [--] <repository> <path>
'git submodule' [--quiet] status [--cached] [--] [<path>...]
'git submodule' [--quiet] init [--] [<path>...]
-'git submodule' [--quiet] update [--init] [--] [<path>...]
-'git submodule' [--quiet] summary [--summary-limit <n>] [commit] [--] [<path>...]
+'git submodule' [--quiet] update [--init] [-N|--no-fetch] [--rebase]
+ [--reference <repository>] [--merge] [--] [<path>...]
+'git submodule' [--quiet] summary [--cached] [--summary-limit <n>] [commit] [--] [<path>...]
+'git submodule' [--quiet] foreach <command>
+'git submodule' [--quiet] sync [--] [<path>...]
DESCRIPTION
update::
Update the registered submodules, i.e. clone missing submodules and
checkout the commit specified in the index of the containing repository.
- This will make the submodules HEAD be detached.
+ This will make the submodules HEAD be detached unless '--rebase' or
+ '--merge' is specified or the key `submodule.$name.update` is set to
+ `rebase` or `merge`.
+
If the submodule is not yet initialized, and you just want to use the
setting as stored in .gitmodules, you can automatically initialize the
in the submodule between the given super project commit and the
index or working tree (switched by --cached) are shown.
+foreach::
+ Evaluates an arbitrary shell command in each checked out submodule.
+ The command has access to the variables $path and $sha1:
+ $path is the name of the submodule directory relative to the
+ superproject, and $sha1 is the commit as recorded in 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.
+ 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, +git submodule foreach \'echo $path {backtick}git
+rev-parse HEAD{backtick}'+ will show the path and currently checked out
+commit for each submodule.
+
+sync::
+ Synchronizes submodules' remote URL configuration setting
+ to the value specified in .gitmodules. This is useful when
+ submodule URLs change upstream and you need to update your local
+ repositories accordingly.
++
+"git submodule sync" synchronizes all submodules while
+"git submodule sync -- A" synchronizes submodule "A" only.
+
OPTIONS
-------
-q::
(the default). This limit only applies to modified submodules. The
size is always limited to 1 for added/deleted/typechanged submodules.
+-N::
+--no-fetch::
+ This option is only valid for the update command.
+ Don't fetch new objects from the remote site.
+
+--merge::
+ This option is only valid for the update command.
+ Merge the commit recorded in the superproject into the current branch
+ of the submodule. If this option is given, the submodule's HEAD will
+ not be detached. If a merge failure prevents this process, you will
+ have to resolve the resulting conflicts within the submodule with the
+ usual conflict resolution tools.
+ If the key `submodule.$name.update` is set to `merge`, this option is
+ implicit.
+
+--rebase::
+ This option is only valid for the update command.
+ Rebase the current branch onto the commit recorded in the
+ superproject. If this option is given, the submodule's HEAD will not
+ be detached. If a a merge failure prevents this process, you will have
+ to resolve these failures with linkgit:git-rebase[1].
+ If the key `submodule.$name.update` is set to `rebase`, this option is
+ implicit.
+
+--reference <repository>::
+ This option is only valid for add and update commands. These
+ commands sometimes need to clone a remote repository. In this case,
+ this option will be passed to the linkgit:git-clone[1] command.
++
+*NOTE*: Do *not* use this option unless you have read the note
+for linkgit:git-clone[1]'s --reference and --shared options carefully.
+
<path>...::
Paths to submodule(s). When specified this will restrict the command
to only operate on the submodules found at the specified paths.