git/git-ls-remote.sh
Johannes Schindelin 2e0afafebd Add git-bundle: move objects and references by archive
Some workflows require use of repositories on machines that cannot be
connected, preventing use of git-fetch / git-push to transport objects and
references between the repositories.

git-bundle provides an alternate transport mechanism, effectively allowing
git-fetch and git-pull to operate using sneakernet transport. `git-bundle
create` allows the user to create a bundle containing one or more branches
or tags, but with specified basis assumed to exist on the target
repository. At the receiving end, git-bundle acts like git-fetch-pack,
allowing the user to invoke git-fetch or git-pull using the bundle file as
the URL. git-fetch and git-ls-remote determine they have a bundle URL by
checking that the URL points to a file, but are otherwise unchanged in
operation with bundles.

The original patch was done by Mark Levedahl <mdl123@verizon.net>.

It was updated to make git-bundle a builtin, and get rid of the tar
format: now, the first line is supposed to say "# v2 git bundle", the next
lines either contain a prerequisite ("-" followed by the hash of the
needed commit), or a ref (the hash of a commit, followed by the name of
the ref), and finally the pack. As a result, the bundle argument can be
"-" now.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <junkio@cox.net>
2007-02-22 22:30:33 -08:00

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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 case "$#" in 0) break;; esac
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 $tmpdir && find refs -type f) |
while read path
do
cat "$tmpdir/$path" | tr -d '\012'
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