don't let the delta cache grow unbounded in 'git repack'

diff --git a/Documentation/git-submodule.txt b/Documentation/git-submodule.txt
index cd8e861ce4ae33b25928a16aa213933d2a38a155..7dd73ae14eb38fd5bd291c2251f64768d198ebe5 100644 (file)
--- a/Documentation/git-submodule.txt
+++ b/Documentation/git-submodule.txt
@@ -14,8 +14,8 @@ 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>...]
+             [--reference <repository>] [--merge] [--] [<path>...]
+'git submodule' [--quiet] summary [--cached] [--summary-limit <n>] [commit] [--] [<path>...]
 'git submodule' [--quiet] foreach <command>
 'git submodule' [--quiet] sync [--] [<path>...]
 
@@ -115,8 +115,9 @@ 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
@@ -140,8 +141,9 @@ foreach::
        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 +182,16 @@ 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