3 . git-sh-setup || die "Not a git archive"
5 _x40='[0-9a-f][0-9a-f][0-9a-f][0-9a-f][0-9a-f]'
6 _x40="$_x40$_x40$_x40$_x40$_x40$_x40$_x40$_x40"
16 while case "$#" in 0) break ;; esac
19 -a|--a|--ap|--app|--appe|--appen|--append)
22 -f|--f|--fo|--for|--forc|--force)
25 -t|--t|--ta|--tag|--tags)
28 -u|--u|--up|--upd|--upda|--updat|--update|--update-|--update-h|\
29 --update-he|--update-hea|--update-head|--update-head-|\
30 --update-head-o|--update-head-ok)
42 test -f "$GIT_DIR/branches/origin" ||
43 test -f "$GIT_DIR/remotes/origin" ||
44 die "Where do you want to fetch from today?"
49 remote=$(get_remote_url "$@")
52 rsync_slurped_objects=
54 if test "" = "$append"
56 : >"$GIT_DIR/FETCH_HEAD"
59 append_fetch_head () {
66 t) not_for_merge_='not-for-merge' ;;
67 '') not_for_merge_= ;;
70 # remote-nick is the URL given on the command line (or a shorthand)
71 # remote-name is the $GIT_DIR relative refs/ path we computed
73 case "$remote_name_" in
77 note_="$(expr "$remote_name_" : 'refs/heads/\(.*\)')"
78 note_="branch '$note_' of " ;;
80 note_="$(expr "$remote_name_" : 'refs/tags/\(.*\)')"
81 note_="tag '$note_' of " ;;
83 note_="$remote_name of " ;;
85 remote_1_=$(expr "$remote_" : '\(.*\)\.git/*$') &&
87 note_="$note_$remote_"
89 # 2.6.11-tree tag would not be happy to be fed to resolve.
90 if git-cat-file commit "$head_" >/dev/null 2>&1
92 headc_=$(git-rev-parse --verify "$head_^0") || exit
93 echo "$headc_ $not_for_merge_ $note_" >>"$GIT_DIR/FETCH_HEAD"
94 echo >&2 "* committish: $head_"
97 echo "$head_ not-for-merge $note_" >>"$GIT_DIR/FETCH_HEAD"
98 echo >&2 "* non-commit: $head_"
101 if test "$local_name_" != ""
103 # We are storing the head locally. Make sure that it is
104 # a fast forward (aka "reverse push").
105 fast_forward_local "$local_name_" "$head_" "$note_"
109 fast_forward_local () {
110 mkdir -p "$(dirname "$GIT_DIR/$1")"
113 # Tags need not be pointing at commits so there
114 # is no way to guarantee "fast-forward" anyway.
115 if test -f "$GIT_DIR/$1"
117 if now_=$(cat "$GIT_DIR/$1") && test "$now_" = "$2"
119 echo >&2 "* $1: same as $3"
121 echo >&2 "* $1: updating with $3"
124 echo >&2 "* $1: storing $3"
126 git-update-ref "$1" "$2"
130 # $1 is the ref being updated.
131 # $2 is the new value for the ref.
132 local=$(git-rev-parse --verify "$1^0" 2>/dev/null)
135 # Require fast-forward.
136 mb=$(git-merge-base "$local" "$2") &&
139 echo >&2 "* $1: same as $3"
142 echo >&2 "* $1: fast forward to $3"
143 git-update-ref "$1" "$2" "$local"
149 echo >&2 "* $1: does not fast forward to $3;"
150 case ",$force,$single_force," in
152 echo >&2 " forcing update."
153 git-update-ref "$1" "$2" "$local"
156 echo >&2 " not updating."
161 echo >&2 "* $1: storing $3"
162 git-update-ref "$1" "$2"
168 case "$update_head_ok" in
170 orig_head=$(git-rev-parse --verify HEAD 2>/dev/null)
174 # If --tags (and later --heads or --all) is specified, then we are
175 # not talking about defaults stored in Pull: line of remotes or
176 # branches file, and just fetch those and refspecs explicitly given.
177 # Otherwise we do what we always did.
179 reflist=$(get_remote_refs_for_fetch "$@")
182 taglist=$(git-ls-remote --tags "$remote" |
189 # remote URL plus explicit refspecs; we need to merge them.
190 reflist="$reflist$LF$taglist"
192 # No explicit refspecs; fetch tags only.
201 # These are relative path from $GIT_DIR, typically starting at refs/
203 if expr "$ref" : '\.' >/dev/null
206 ref=$(expr "$ref" : '\.\(.*\)')
210 if expr "$ref" : '\+' >/dev/null
213 ref=$(expr "$ref" : '\+\(.*\)')
217 remote_name=$(expr "$ref" : '\([^:]*\):')
218 local_name=$(expr "$ref" : '[^:]*:\(.*\)')
220 rref="$rref$LF$remote_name"
222 # There are transports that can fetch only one head at a time...
224 http://* | https://*)
225 if [ -n "$GIT_SSL_NO_VERIFY" ]; then
228 remote_name_quoted=$(perl -e '
230 $u =~ s{([^-a-zA-Z0-9/.])}{sprintf"%%%02x",ord($1)}eg;
233 head=$(curl -nsf $curl_extra_args "$remote/$remote_name_quoted") &&
234 expr "$head" : "$_x40\$" >/dev/null ||
235 die "Failed to fetch $remote_name from $remote"
236 echo >&2 Fetching "$remote_name from $remote" using http
237 git-http-fetch -v -a "$head" "$remote/" || exit
240 TMP_HEAD="$GIT_DIR/TMP_HEAD"
241 rsync -L -q "$remote/$remote_name" "$TMP_HEAD" || exit 1
242 head=$(git-rev-parse --verify TMP_HEAD)
244 test "$rsync_slurped_objects" || {
245 rsync -av --ignore-existing --exclude info \
246 "$remote/objects/" "$GIT_OBJECT_DIRECTORY/" || exit
248 # Look at objects/info/alternates for rsync -- http will
249 # support it natively and git native ones will do it on the remote
250 # end. Not having that file is not a crime.
251 rsync -q "$remote/objects/info/alternates" \
252 "$GIT_DIR/TMP_ALT" 2>/dev/null ||
253 rm -f "$GIT_DIR/TMP_ALT"
254 if test -f "$GIT_DIR/TMP_ALT"
256 resolve_alternates "$remote" <"$GIT_DIR/TMP_ALT" |
259 case "$alt" in 'bad alternate: '*) die "$alt";; esac
260 echo >&2 "Getting alternate: $alt"
261 rsync -av --ignore-existing --exclude info \
262 "$alt" "$GIT_OBJECT_DIRECTORY/" || exit
264 rm -f "$GIT_DIR/TMP_ALT"
266 rsync_slurped_objects=t
270 # We will do git native transport with just one call later.
274 append_fetch_head "$head" "$remote" \
275 "$remote_name" "$remote_nick" "$local_name" "$not_for_merge"
280 http://* | https://* | rsync://* )
281 ;; # we are already done.
285 git-fetch-pack "$remote" $rref || echo failed "$remote"
287 while read sha1 remote_name
291 echo >&2 "Fetch failure: $remote"
319 local_name=$(expr "$found" : '[^:]*:\(.*\)')
320 append_fetch_head "$sha1" "$remote" \
321 "$remote_name" "$remote_nick" "$local_name" "$not_for_merge"
326 # If the original head was empty (i.e. no "master" yet), or
327 # if we were told not to worry, we do not have to check.
328 case ",$update_head_ok,$orig_head," in
332 curr_head=$(git-rev-parse --verify HEAD 2>/dev/null)
333 if test "$curr_head" != "$orig_head"
335 git-update-ref HEAD "$orig_head"
336 die "Cannot fetch into the current branch."