git submodule update: Introduce --recursive to update nested submodules

[thirdparty/git.git] / Documentation / git-submodule.txt

diff --git a/Documentation/git-submodule.txt b/Documentation/git-submodule.txt
index cd8e861ce4ae33b25928a16aa213933d2a38a155..55bbc4f9303ce2f6e8d2797a329b6fa12f52bd92 100644 (file)
--- a/Documentation/git-submodule.txt
+++ b/Documentation/git-submodule.txt
@@ -14,9 +14,9 @@ SYNOPSIS
 'git submodule' [--quiet] status [--cached] [--] [<path>...]
 'git submodule' [--quiet] init [--] [<path>...]
 'git submodule' [--quiet] update [--init] [-N|--no-fetch] [--rebase]
-             [--reference <repository>] [--] [<path>...]
-'git submodule' [--quiet] summary [--summary-limit <n>] [commit] [--] [<path>...]
-'git submodule' [--quiet] foreach <command>
+             [--reference <repository>] [--merge] [--recursive] [--] [<path>...]
+'git submodule' [--quiet] summary [--cached] [--summary-limit <n>] [commit] [--] [<path>...]
+'git submodule' [--quiet] foreach [--recursive] <command>
 'git submodule' [--quiet] sync [--] [<path>...]
 
 
@@ -115,12 +115,16 @@ init::
 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 unless '--rebase' is
-       specified or the key `submodule.$name.update` is set to `rebase`.
+       This will make the submodules HEAD be detached unless '--rebase' or
+       '--merge' is specified or the key `submodule.$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
 submodule with the --init option.
++
+If '--recursive' is specified, this command will recurse into the
+registered submodules, and update any nested submodules within.
 
 summary::
        Show commit summary between the given commit (defaults to HEAD) and
@@ -130,18 +134,22 @@ summary::
 
 foreach::
        Evaluates an arbitrary shell command in each checked out submodule.
-       The command has access to the variables $path and $sha1:
+       The command has access to the variables $name, $path and $sha1:
+       $name is the name of the relevant submodule section in .gitmodules,
        $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.
+       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, "git submodule foreach 'echo $path `git rev-parse HEAD`' will
-show the path and currently checked out commit for each submodule.
+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
@@ -180,6 +188,16 @@ OPTIONS
        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
@@ -197,6 +215,12 @@ OPTIONS
 *NOTE*: Do *not* use this option unless you have read the note
 for linkgit:git-clone[1]'s --reference and --shared options carefully.
 
+--recursive::
+       This option is only valid for foreach and update commands.
+       Traverse submodules recursively. The operation is performed not
+       only in the submodules of the current repo, but also
+       in any nested submodules inside those submodules (and so on).
+
 <path>...::
        Paths to submodule(s). When specified this will restrict the command
        to only operate on the submodules found at the specified paths.