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git submodule summary: Handle HEAD as argument when on an unborn branch 

When calling "git submodule summary HEAD" on an unborn branch the output
was empty even when it shouldn't have been ("git submodule summary"
without the HEAD argument prints the expected output since commit
"submodule summary: do not fail before the first commit").

This also fixes "git status" to emit the "Submodule changes to be
committed" section on an unborn branch when used with the
status.submodulesummary config option.

Signed-off-by: Jens Lehmann <Jens.Lehmann@web.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Jens Lehmann 2010-03-09 15:55:32 +01:00 committed by Junio C Hamano
parent 14e940d719
commit 2ea6c2c9ab
1 changed files with 1 additions and 0 deletions
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git-submodule.sh
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@ -561,6 +561,7 @@ cmd_summary() {
then
# before the first commit: compare with an empty tree
head=$(git hash-object -w -t tree --stdin </dev/null)
test -z "$1" || shift
else
head="HEAD"
fi