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git/git-ls-remote.sh
David Kastrup 822f7c7349 Supplant the "while case ... break ;; esac" idiom
A lot of shell scripts contained stuff starting with

	while case "$#" in 0) break ;; esac

and similar.  I consider breaking out of the condition instead of the
body od the loop ugly, and the implied "true" value of the
non-matching case is not really obvious to humans at first glance.  It
happens not to be obvious to some BSD shells, either, but that's
because they are not POSIX-compliant.  In most cases, this has been
replaced by a straight condition using "test".  "case" has the
advantage of being faster than "test" on vintage shells where "test"
is not a builtin.  Since none of them is likely to run the git
scripts, anyway, the added readability should be worth the change.

A few loops have had their termination condition expressed
differently.

Signed-off-by: David Kastrup <dak@gnu.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2007-09-23 16:12:00 -07:00

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#!/bin/sh
#
usage () {
echo >&2 "usage: $0 [--heads] [--tags] [-u|--upload-pack <upload-pack>]"
echo >&2 " <repository> <refs>..."
exit 1;
}
die () {
echo >&2 "$*"
exit 1
}
exec=
while test $# != 0
do
case "$1" in
-h|--h|--he|--hea|--head|--heads)
heads=heads; shift ;;
-t|--t|--ta|--tag|--tags)
tags=tags; shift ;;
-u|--u|--up|--upl|--uploa|--upload|--upload-|--upload-p|--upload-pa|\
--upload-pac|--upload-pack)
shift
exec="--upload-pack=$1"
shift;;
-u=*|--u=*|--up=*|--upl=*|--uplo=*|--uploa=*|--upload=*|\
--upload-=*|--upload-p=*|--upload-pa=*|--upload-pac=*|--upload-pack=*)
exec=--upload-pack=$(expr "z$1" : 'z-[^=]*=\(.*\)')
shift;;
--)
shift; break ;;
-*)
usage ;;
*)
break ;;
esac
done
case "$#" in 0) usage ;; esac
case ",$heads,$tags," in
,,,) heads=heads tags=tags other=other ;;
esac
. git-parse-remote
peek_repo="$(get_remote_url "$@")"
shift
tmp=.ls-remote-$$
trap "rm -fr $tmp-*" 0 1 2 3 15
tmpdir=$tmp-d
case "$peek_repo" in
http://* | https://* | ftp://* )
if [ -n "$GIT_SSL_NO_VERIFY" ]; then
curl_extra_args="-k"
fi
if [ -n "$GIT_CURL_FTP_NO_EPSV" -o \
"`git config --bool http.noEPSV`" = true ]; then
curl_extra_args="${curl_extra_args} --disable-epsv"
fi
curl -nsf $curl_extra_args --header "Pragma: no-cache" "$peek_repo/info/refs" ||
echo "failed slurping"
;;
rsync://* )
mkdir $tmpdir &&
rsync -rlq "$peek_repo/HEAD" $tmpdir &&
rsync -rq "$peek_repo/refs" $tmpdir || {
echo "failed slurping"
exit
}
head=$(cat "$tmpdir/HEAD") &&
case "$head" in
ref:' '*)
head=$(expr "z$head" : 'zref: \(.*\)') &&
head=$(cat "$tmpdir/$head") || exit
esac &&
echo "$head HEAD"
(cd $tmpdir && find refs -type f) |
while read path
do
tr -d '\012' <"$tmpdir/$path"
echo " $path"
done &&
rm -fr $tmpdir
;;
* )
if test -f "$peek_repo" ; then
git bundle list-heads "$peek_repo" ||
echo "failed slurping"
else
git-peek-remote $exec "$peek_repo" ||
echo "failed slurping"
fi
;;
esac |
sort -t ' ' -k 2 |
while read sha1 path
do
case "$sha1" in
failed)
exit 1 ;;
esac
case "$path" in
refs/heads/*)
group=heads ;;
refs/tags/*)
group=tags ;;
*)
group=other ;;
esac
case ",$heads,$tags,$other," in
*,$group,*)
;;
*)
continue;;
esac
case "$#" in
0)
match=yes ;;
*)
match=no
for pat
do
case "/$path" in
*/$pat )
match=yes
break ;;
esac
done
esac
case "$match" in
no)
continue ;;
esac
echo "$sha1 $path"
done