#
USAGE='<fetch-options> <repository> <refspec>...'
+SUBDIRECTORY_OK=Yes
. git-sh-setup
+set_reflog_action "fetch $*"
+cd_to_toplevel ;# probably unnecessary...
+
. git-parse-remote
_x40='[0-9a-f][0-9a-f][0-9a-f][0-9a-f][0-9a-f]'
_x40="$_x40$_x40$_x40$_x40$_x40$_x40$_x40$_x40"
'
IFS="$LF"
-rloga=fetch
no_tags=
tags=
append=
update_head_ok=
exec=
upload_pack=
-keep=--thin
+keep=
+shallow_depth=
while case "$#" in 0) break ;; esac
do
case "$1" in
verbose=Yes
;;
-k|--k|--ke|--kee|--keep)
- keep=--keep
+ keep='-k -k'
+ ;;
+ --depth=*)
+ shallow_depth="--depth=`expr "z$1" : 'z-[^=]*=\(.*\)'`"
;;
- --reflog-action=*)
- rloga=`expr "z$1" : 'z-[^=]*=\(.*\)'`
+ --depth)
+ shift
+ shallow_depth="--depth=$1"
;;
-*)
usage
rref=
rsync_slurped_objects=
-rloga="$rloga $remote_nick"
-test "$remote_nick" = "$remote" || rloga="$rloga $remote"
-
if test "" = "$append"
then
: >"$GIT_DIR/FETCH_HEAD"
fi
+# Global that is reused later
+ls_remote_result=$(git ls-remote $upload_pack "$remote") ||
+ die "Cannot get the repository state from $remote"
+
append_fetch_head () {
head_="$1"
remote_="$2"
then
headc_=$(git-rev-parse --verify "$head_^0") || exit
echo "$headc_ $not_for_merge_ $note_" >>"$GIT_DIR/FETCH_HEAD"
- [ "$verbose" ] && echo >&2 "* committish: $head_"
- [ "$verbose" ] && echo >&2 " $note_"
else
echo "$head_ not-for-merge $note_" >>"$GIT_DIR/FETCH_HEAD"
- [ "$verbose" ] && echo >&2 "* non-commit: $head_"
- [ "$verbose" ] && echo >&2 " $note_"
- fi
- if test "$local_name_" != ""
- then
- # We are storing the head locally. Make sure that it is
- # a fast forward (aka "reverse push").
- fast_forward_local "$local_name_" "$head_" "$note_"
fi
+
+ update_local_ref "$local_name_" "$head_" "$note_"
}
-fast_forward_local () {
- mkdir -p "$(dirname "$GIT_DIR/$1")"
+update_local_ref () {
+ # If we are storing the head locally make sure that it is
+ # a fast forward (aka "reverse push").
+
+ label_=$(git-cat-file -t $2)
+ newshort_=$(git-rev-parse --short $2)
+ if test -z "$1" ; then
+ [ "$verbose" ] && echo >&2 "* fetched $3"
+ [ "$verbose" ] && echo >&2 " $label_: $newshort_"
+ return 0
+ fi
+ oldshort_=$(git show-ref --hash --abbrev "$1" 2>/dev/null)
+
case "$1" in
refs/tags/*)
# Tags need not be pointing at commits so there
# is no way to guarantee "fast-forward" anyway.
- if test -f "$GIT_DIR/$1"
+ if test -n "$oldshort_"
then
- if now_=$(cat "$GIT_DIR/$1") && test "$now_" = "$2"
+ if now_=$(git show-ref --hash "$1") && test "$now_" = "$2"
then
- [ "$verbose" ] && echo >&2 "* $1: same as $3" ||:
+ [ "$verbose" ] && echo >&2 "* $1: same as $3"
+ [ "$verbose" ] && echo >&2 " $label_: $newshort_" ||:
else
echo >&2 "* $1: updating with $3"
- git-update-ref -m "$rloga: updating tag" "$1" "$2"
+ echo >&2 " $label_: $newshort_"
+ git-update-ref -m "$GIT_REFLOG_ACTION: updating tag" "$1" "$2"
fi
else
echo >&2 "* $1: storing $3"
- git-update-ref -m "$rloga: storing tag" "$1" "$2"
+ echo >&2 " $label_: $newshort_"
+ git-update-ref -m "$GIT_REFLOG_ACTION: storing tag" "$1" "$2"
fi
;;
if test -n "$verbose"
then
echo >&2 "* $1: same as $3"
+ echo >&2 " $label_: $newshort_"
fi
;;
*,$local)
echo >&2 "* $1: fast forward to $3"
- echo >&2 " from $local to $2"
- git-update-ref -m "$rloga: fast-forward" "$1" "$2" "$local"
+ echo >&2 " old..new: $oldshort_..$newshort_"
+ git-update-ref -m "$GIT_REFLOG_ACTION: fast-forward" "$1" "$2" "$local"
;;
*)
false
;;
esac || {
- echo >&2 "* $1: does not fast forward to $3;"
case ",$force,$single_force," in
*,t,*)
- echo >&2 " forcing update."
- git-update-ref -m "$rloga: forced-update" "$1" "$2" "$local"
+ echo >&2 "* $1: forcing update to non-fast forward $3"
+ echo >&2 " old...new: $oldshort_...$newshort_"
+ git-update-ref -m "$GIT_REFLOG_ACTION: forced-update" "$1" "$2" "$local"
;;
*)
- echo >&2 " not updating."
+ echo >&2 "* $1: not updating to non-fast forward $3"
+ echo >&2 " old...new: $oldshort_...$newshort_"
exit 1
;;
esac
}
else
echo >&2 "* $1: storing $3"
- git-update-ref -m "$rloga: storing head" "$1" "$2"
+ echo >&2 " $label_: $newshort_"
+ git-update-ref -m "$GIT_REFLOG_ACTION: storing head" "$1" "$2"
fi
;;
esac
}
-case "$update_head_ok" in
-'')
+# updating the current HEAD with git-fetch in a bare
+# repository is always fine.
+if test -z "$update_head_ok" && test $(is_bare_repository) = false
+then
orig_head=$(git-rev-parse --verify HEAD 2>/dev/null)
- ;;
-esac
+fi
# If --tags (and later --heads or --all) is specified, then we are
# not talking about defaults stored in Pull: line of remotes or
reflist=$(get_remote_refs_for_fetch "$@")
if test "$tags"
then
- taglist=`IFS=" " &&
- (
- git-ls-remote $upload_pack --tags "$remote" ||
- echo fail ouch
- ) |
+ taglist=`IFS=' ' &&
+ echo "$ls_remote_result" |
while read sha1 name
do
case "$sha1" in
esac
case "$name" in
*^*) continue ;;
+ refs/tags/*) ;;
+ *) continue ;;
esac
if git-check-ref-format "$name"
then
fetch_main () {
reflist="$1"
refs=
+ rref=
for ref in $reflist
do
# There are transports that can fetch only one head at a time...
case "$remote" in
http://* | https://* | ftp://*)
+ test -n "$shallow_depth" &&
+ die "shallow clone with http not supported"
+ proto=`expr "$remote" : '\([^:]*\):'`
if [ -n "$GIT_SSL_NO_VERIFY" ]; then
curl_extra_args="-k"
fi
"`git-repo-config --bool http.noEPSV`" = true ]; then
noepsv_opt="--disable-epsv"
fi
- max_depth=5
- depth=0
- head="ref: $remote_name"
- while (expr "z$head" : "zref:" && expr $depth \< $max_depth) >/dev/null
- do
- remote_name_quoted=$(@@PERL@@ -e '
- my $u = $ARGV[0];
- $u =~ s/^ref:\s*//;
- $u =~ s{([^-a-zA-Z0-9/.])}{sprintf"%%%02x",ord($1)}eg;
- print "$u";
- ' "$head")
- head=$(curl -nsfL $curl_extra_args $noepsv_opt "$remote/$remote_name_quoted")
- depth=$( expr \( $depth + 1 \) )
- done
+
+ # Find $remote_name from ls-remote output.
+ head=$(
+ IFS=' '
+ echo "$ls_remote_result" |
+ while read sha1 name
+ do
+ test "z$name" = "z$remote_name" || continue
+ echo "$sha1"
+ break
+ done
+ )
expr "z$head" : "z$_x40\$" >/dev/null ||
- die "Failed to fetch $remote_name from $remote"
- echo >&2 Fetching "$remote_name from $remote" using http
+ die "No such ref $remote_name at $remote"
+ echo >&2 "Fetching $remote_name from $remote using $proto"
git-http-fetch -v -a "$head" "$remote/" || exit
;;
rsync://*)
+ test -n "$shallow_depth" &&
+ die "shallow clone with rsync not supported"
TMP_HEAD="$GIT_DIR/TMP_HEAD"
rsync -L -q "$remote/$remote_name" "$TMP_HEAD" || exit 1
head=$(git-rev-parse --verify TMP_HEAD)
esac
append_fetch_head "$head" "$remote" \
- "$remote_name" "$remote_nick" "$local_name" "$not_for_merge"
+ "$remote_name" "$remote_nick" "$local_name" "$not_for_merge" || exit
done
( : subshell because we muck with IFS
IFS=" $LF"
(
- git-fetch-pack $exec $keep "$remote" $rref || echo failed "$remote"
+ git-fetch-pack --thin $exec $keep $shallow_depth "$remote" $rref ||
+ echo failed "$remote"
) |
- while read sha1 remote_name
- do
+ (
+ trap '
+ if test -n "$keepfile" && test -f "$keepfile"
+ then
+ rm -f "$keepfile"
+ fi
+ ' 0
+
+ keepfile=
+ while read sha1 remote_name
+ do
case "$sha1" in
failed)
echo >&2 "Fetch failure: $remote"
exit 1 ;;
+ # special line coming from index-pack with the pack name
+ pack)
+ continue ;;
+ keep)
+ keepfile="$GIT_OBJECT_DIRECTORY/pack/pack-$remote_name.keep"
+ continue ;;
esac
found=
single_force=
done
local_name=$(expr "z$found" : 'z[^:]*:\(.*\)')
append_fetch_head "$sha1" "$remote" \
- "$remote_name" "$remote_nick" "$local_name" "$not_for_merge"
- done
+ "$remote_name" "$remote_nick" "$local_name" \
+ "$not_for_merge" || exit
+ done
+ )
) || exit ;;
esac
}
-fetch_main "$reflist"
+fetch_main "$reflist" || exit
# automated tag following
case "$no_tags$tags" in
*:refs/*)
# effective only when we are following remote branch
# using local tracking branch.
- taglist=$(IFS=" " &&
- git-ls-remote $upload_pack --tags "$remote" |
- sed -ne 's|^\([0-9a-f]*\)[ ]\(refs/tags/.*\)^{}$|\1 \2|p' |
+ taglist=$(IFS=' ' &&
+ echo "$ls_remote_result" |
+ git-show-ref --exclude-existing=refs/tags/ |
while read sha1 name
do
- test -f "$GIT_DIR/$name" && continue
- git-check-ref-format "$name" || {
- echo >&2 "warning: tag ${name} ignored"
- continue
- }
git-cat-file -t "$sha1" >/dev/null 2>&1 || continue
echo >&2 "Auto-following $name"
echo ".${name}:${name}"
case "$taglist" in
'') ;;
?*)
- fetch_main "$taglist" ;;
+ # do not deepen a shallow tree when following tags
+ shallow_depth=
+ fetch_main "$taglist" || exit ;;
esac
esac
# If the original head was empty (i.e. no "master" yet), or
# if we were told not to worry, we do not have to check.
-case ",$update_head_ok,$orig_head," in
-*,, | t,* )
+case "$orig_head" in
+'')
;;
-*)
+?*)
curr_head=$(git-rev-parse --verify HEAD 2>/dev/null)
if test "$curr_head" != "$orig_head"
then
git-update-ref \
- -m "$rloga: Undoing incorrectly fetched HEAD." \
+ -m "$GIT_REFLOG_ACTION: Undoing incorrectly fetched HEAD." \
HEAD "$orig_head"
die "Cannot fetch into the current branch."
fi