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Work around ash "alternate value" expansion bug

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Ash (used as /bin/sh on many distros) has a shell expansion bug
for the form ${var:+word word}.  The result is a single argument
"word word".  Work around by using ${var:+word} ${var:+word} or
equivalent.

Signed-off-by: Ben Jackson <ben@ben.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Ben Jackson
2009-04-18 20:42:07 -07:00
committed by Junio C Hamano
parent 77b96d6dbf
commit ea10b60c91
3 changed files with 20 additions and 3 deletions
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11
git-submodule.sh
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@ -204,8 +204,15 @@ cmd_add()
else
module_clone "$path" "$realrepo" || exit
(unset GIT_DIR; cd "$path" && git checkout -f -q ${branch:+-b "$branch" "origin/$branch"}) ||
die "Unable to checkout submodule '$path'"
(
unset GIT_DIR
cd "$path" &&
# ash fails to wordsplit ${branch:+-b "$branch"...}
case "$branch" in
'') git checkout -f -q ;;
?*) git checkout -f -q -b "$branch" "origin/$branch" ;;
esac
) || die "Unable to checkout submodule '$path'"
fi
git add "$path" ||