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git-submodule: add "sync" command

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When a submodule's URL changes upstream, existing submodules
will be out of sync since their remote."$origin".url will still
be set to the old value.

This adds a "git submodule sync" command that reads submodules'
URLs from .gitmodules and updates them accordingly.

Signed-off-by: David Aguilar <davvid@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
David Aguilar
2008-08-24 12:43:37 -07:00
committed by Junio C Hamano
parent 27a6ed492b
commit 2327f61ecc
2 changed files with 55 additions and 2 deletions
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9
Documentation/git-submodule.txt
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@@ -15,6 +15,7 @@ SYNOPSIS
'git submodule' [--quiet] update [--init] [--] [<path>...]
'git submodule' [--quiet] summary [--summary-limit <n>] [commit] [--] [<path>...]
'git submodule' [--quiet] foreach <command>
'git submodule' [--quiet] sync [--] [<path>...]
DESCRIPTION
@@ -139,6 +140,14 @@ foreach::
As an example, "git submodule foreach 'echo $path `git rev-parse HEAD`' 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
-------