4 USAGE='<fetch-options> <repository> <refspec>...'
7 _x40='[0-9a-f][0-9a-f][0-9a-f][0-9a-f][0-9a-f]'
8 _x40="$_x40$_x40$_x40$_x40$_x40$_x40$_x40$_x40"
22 while case "$#" in 0) break ;; esac
25 -a|--a|--ap|--app|--appe|--appen|--append)
28 --upl|--uplo|--uploa|--upload|--upload-|--upload-p|\
29 --upload-pa|--upload-pac|--upload-pack)
34 -f|--f|--fo|--for|--forc|--force)
37 -t|--t|--ta|--tag|--tags)
40 -n|--n|--no|--no-|--no-t|--no-ta|--no-tag|--no-tags)
43 -u|--u|--up|--upd|--upda|--updat|--update|--update-|--update-h|\
44 --update-he|--update-hea|--update-head|--update-head-|\
45 --update-head-o|--update-head-ok)
51 -k|--k|--ke|--kee|--keep)
66 test -f "$GIT_DIR/branches/origin" ||
67 test -f "$GIT_DIR/remotes/origin" ||
68 die "Where do you want to fetch from today?"
73 remote=$(get_remote_url "$@")
76 rsync_slurped_objects=
78 if test "" = "$append"
80 : >"$GIT_DIR/FETCH_HEAD"
83 append_fetch_head () {
90 t) not_for_merge_='not-for-merge' ;;
91 '') not_for_merge_= ;;
94 # remote-nick is the URL given on the command line (or a shorthand)
95 # remote-name is the $GIT_DIR relative refs/ path we computed
98 # the $note_ variable will be fed to git-fmt-merge-msg for further
100 case "$remote_name_" in
104 note_="$(expr "$remote_name_" : 'refs/heads/\(.*\)')"
105 note_="branch '$note_' of " ;;
107 note_="$(expr "$remote_name_" : 'refs/tags/\(.*\)')"
108 note_="tag '$note_' of " ;;
110 note_="$(expr "$remote_name_" : 'refs/remotes/\(.*\)')"
111 note_="remote branch '$note_' of " ;;
113 note_="$remote_name of " ;;
115 remote_1_=$(expr "$remote_" : '\(.*\)\.git/*$') &&
117 note_="$note_$remote_"
119 # 2.6.11-tree tag would not be happy to be fed to resolve.
120 if git-cat-file commit "$head_" >/dev/null 2>&1
122 headc_=$(git-rev-parse --verify "$head_^0") || exit
123 echo "$headc_ $not_for_merge_ $note_" >>"$GIT_DIR/FETCH_HEAD"
124 [ "$verbose" ] && echo >&2 "* committish: $head_"
125 [ "$verbose" ] && echo >&2 " $note_"
127 echo "$head_ not-for-merge $note_" >>"$GIT_DIR/FETCH_HEAD"
128 [ "$verbose" ] && echo >&2 "* non-commit: $head_"
129 [ "$verbose" ] && echo >&2 " $note_"
131 if test "$local_name_" != ""
133 # We are storing the head locally. Make sure that it is
134 # a fast forward (aka "reverse push").
135 fast_forward_local "$local_name_" "$head_" "$note_"
139 fast_forward_local () {
140 mkdir -p "$(dirname "$GIT_DIR/$1")"
143 # Tags need not be pointing at commits so there
144 # is no way to guarantee "fast-forward" anyway.
145 if test -f "$GIT_DIR/$1"
147 if now_=$(cat "$GIT_DIR/$1") && test "$now_" = "$2"
149 [ "$verbose" ] && echo >&2 "* $1: same as $3"
151 echo >&2 "* $1: updating with $3"
154 echo >&2 "* $1: storing $3"
156 git-update-ref "$1" "$2"
159 refs/heads/* | refs/remotes/*)
160 # $1 is the ref being updated.
161 # $2 is the new value for the ref.
162 local=$(git-rev-parse --verify "$1^0" 2>/dev/null)
165 # Require fast-forward.
166 mb=$(git-merge-base "$local" "$2") &&
169 echo >&2 "* $1: same as $3"
172 echo >&2 "* $1: fast forward to $3"
173 echo >&2 " from $local to $2"
174 git-update-ref "$1" "$2" "$local"
180 echo >&2 "* $1: does not fast forward to $3;"
181 case ",$force,$single_force," in
183 echo >&2 " forcing update."
184 git-update-ref "$1" "$2" "$local"
187 echo >&2 " not updating."
192 echo >&2 "* $1: storing $3"
193 git-update-ref "$1" "$2"
199 case "$update_head_ok" in
201 orig_head=$(git-rev-parse --verify HEAD 2>/dev/null)
205 # If --tags (and later --heads or --all) is specified, then we are
206 # not talking about defaults stored in Pull: line of remotes or
207 # branches file, and just fetch those and refspecs explicitly given.
208 # Otherwise we do what we always did.
210 reflist=$(get_remote_refs_for_fetch "$@")
214 git-ls-remote $upload_pack --tags "$remote" |
220 if git-check-ref-format "$name"
222 echo ".${name}:${name}"
224 echo >&2 "warning: tag ${name} ignored"
229 # remote URL plus explicit refspecs; we need to merge them.
230 reflist="$reflist$LF$taglist"
232 # No explicit refspecs; fetch tags only.
245 # These are relative path from $GIT_DIR, typically starting at refs/
247 if expr "$ref" : '\.' >/dev/null
250 ref=$(expr "$ref" : '\.\(.*\)')
254 if expr "$ref" : '\+' >/dev/null
257 ref=$(expr "$ref" : '\+\(.*\)')
261 remote_name=$(expr "$ref" : '\([^:]*\):')
262 local_name=$(expr "$ref" : '[^:]*:\(.*\)')
264 rref="$rref$LF$remote_name"
266 # There are transports that can fetch only one head at a time...
268 http://* | https://*)
269 if [ -n "$GIT_SSL_NO_VERIFY" ]; then
272 remote_name_quoted=$(perl -e '
274 $u =~ s{([^-a-zA-Z0-9/.])}{sprintf"%%%02x",ord($1)}eg;
277 head=$(curl -nsfL $curl_extra_args "$remote/$remote_name_quoted") &&
278 expr "$head" : "$_x40\$" >/dev/null ||
279 die "Failed to fetch $remote_name from $remote"
280 echo >&2 Fetching "$remote_name from $remote" using http
281 git-http-fetch -v -a "$head" "$remote/" || exit
284 TMP_HEAD="$GIT_DIR/TMP_HEAD"
285 rsync -L -q "$remote/$remote_name" "$TMP_HEAD" || exit 1
286 head=$(git-rev-parse --verify TMP_HEAD)
288 test "$rsync_slurped_objects" || {
289 rsync -av --ignore-existing --exclude info \
290 "$remote/objects/" "$GIT_OBJECT_DIRECTORY/" || exit
292 # Look at objects/info/alternates for rsync -- http will
293 # support it natively and git native ones will do it on
294 # the remote end. Not having that file is not a crime.
295 rsync -q "$remote/objects/info/alternates" \
296 "$GIT_DIR/TMP_ALT" 2>/dev/null ||
297 rm -f "$GIT_DIR/TMP_ALT"
298 if test -f "$GIT_DIR/TMP_ALT"
300 resolve_alternates "$remote" <"$GIT_DIR/TMP_ALT" |
303 case "$alt" in 'bad alternate: '*) die "$alt";; esac
304 echo >&2 "Getting alternate: $alt"
305 rsync -av --ignore-existing --exclude info \
306 "$alt" "$GIT_OBJECT_DIRECTORY/" || exit
308 rm -f "$GIT_DIR/TMP_ALT"
310 rsync_slurped_objects=t
314 # We will do git native transport with just one call later.
318 append_fetch_head "$head" "$remote" \
319 "$remote_name" "$remote_nick" "$local_name" "$not_for_merge"
324 http://* | https://* | rsync://* )
325 ;; # we are already done.
327 ( : subshell because we muck with IFS
330 git-fetch-pack $exec $keep --thin "$remote" $rref || echo failed "$remote"
332 while read sha1 remote_name
336 echo >&2 "Fetch failure: $remote"
364 local_name=$(expr "$found" : '[^:]*:\(.*\)')
365 append_fetch_head "$sha1" "$remote" \
366 "$remote_name" "$remote_nick" "$local_name" "$not_for_merge"
373 fetch_main "$reflist"
375 # automated tag following
376 case "$no_tags$tags" in
380 # effective only when we are following remote branch
381 # using local tracking branch.
383 git-ls-remote $upload_pack --tags "$remote" |
384 sed -ne 's|^\([0-9a-f]*\)[ ]\(refs/tags/.*\)^{}$|\1 \2|p' |
387 test -f "$GIT_DIR/$name" && continue
388 git-check-ref-format "$name" || {
389 echo >&2 "warning: tag ${name} ignored"
392 git-cat-file -t "$sha1" >/dev/null 2>&1 || continue
393 echo >&2 "Auto-following $name"
394 echo ".${name}:${name}"
400 fetch_main "$taglist" ;;
404 # If the original head was empty (i.e. no "master" yet), or
405 # if we were told not to worry, we do not have to check.
406 case ",$update_head_ok,$orig_head," in
410 curr_head=$(git-rev-parse --verify HEAD 2>/dev/null)
411 if test "$curr_head" != "$orig_head"
413 git-update-ref HEAD "$orig_head"
414 die "Cannot fetch into the current branch."