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#!/bin/sh
#
# Copyright (c) 2005, Junio C Hamano
#
# Called by git-fetch-script
# Exits 2 when the remote site does not support dumb server protocol.
# Usage: git-fetch-dumb-http <head-SHA1> <repo> [ <head> | tag <tag> ]
. git-sh-setup-script || die "Not a git archive"
head="$1"
shift
. git-parse-remote "$@"
merge_repo="$_remote_repo"
merge_head="$_remote_head"
merge_store="$_remote_store"
if [ -n "$GIT_SSL_NO_VERIFY" ]; then
curl_extra_args="-k"
fi
http_fetch () {
# $1 = Remote, $2 = Local
curl -ns $curl_extra_args "$1" >"$2"
}
# Try dumb server protocol
clone_tmp=".git/clone-tmp$$" &&
mkdir -p "$clone_tmp" || exit 1
trap "rm -rf $clone_tmp" 0 1 2 3 15
http_fetch "$merge_repo/info/refs" "$clone_tmp/refs" &&
http_fetch "$merge_repo/objects/info/packs" "$clone_tmp/packs" &&
http_fetch "$merge_repo/info/rev-cache" "$clone_tmp/rev-cache" || exit 2
# Which packs are we interested in?
has_missing=,
while read tag num sha1 type
do
case "$tag" in
T) ;;
*) continue ;;
esac
git-cat-file -t "$sha1" >/dev/null || has_missing="$has_missing$num,"
done <$clone_tmp/packs
# Slurp the pack index we do not have all objects for.
pack_ix=0
may_want_pack_count=0
while read tag pack
do
case "$tag" in
P) ;;
*) break ;; # P records always come first.
esac
case "$has_missing" in
*",$pack_ix,"*)
name=`expr "$pack" : '\(.*\)\.pack$'` &&
idx="$name.idx" &&
http_fetch "$merge_repo/objects/pack/$idx" "$clone_tmp/$idx" &&
# Note that idx file is sorted --- otherwise we need to sort it here.
git-show-index <"$clone_tmp/$idx" |
sed -e 's/^[^ ]* //' >"$clone_tmp/$name.toc" ||
exit 1
may_want_pack_count=`expr "$may_want_pack_count" + 1`
;;
esac
pack_ix=`expr "$pack_ix" + 1`
done <$clone_tmp/packs
case "$may_want_pack_count" in
0)
exit 0 ;;
esac
# We want $head. What are the head objects we are missing?
git-missing-revs $clone_tmp/rev-cache $head >$clone_tmp/missing-revs &&
sort -o $clone_tmp/missing-revs $clone_tmp/missing-revs || exit 2
for toc in $clone_tmp/*.toc
do
name=`expr $toc : '.*/\([^/]*\)\.toc'` &&
comm -12 $clone_tmp/missing-revs $toc >$clone_tmp/$name.can
# FIXME: this is stupid.
if test -s $clone_tmp/$name.can
then
pack="$name.pack" idx="$name.idx" &&
http_fetch "$merge_repo/objects/pack/$pack" "$clone_tmp/$pack" &&
git-verify-pack "$clone_tmp/$pack" &&
mkdir -p "$GIT_OBJECT_DIRECTORY/pack" &&
mv "$clone_tmp/$pack" "$clone_tmp/$idx" \
"$GIT_OBJECT_DIRECTORY/pack/" || {
# remote may just have a stale dumb server information files.
# and normal pull might succeed.
exit 2
}
fi
done
exit 0
|
