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"
20 while case "$#" in 0) break ;; esac
23 -a|--a|--ap|--app|--appe|--appen|--append)
26 -f|--f|--fo|--for|--forc|--force)
29 -t|--t|--ta|--tag|--tags)
32 -n|--n|--no|--no-|--no-t|--no-ta|--no-tag|--no-tags)
35 -u|--u|--up|--upd|--upda|--updat|--update|--update-|--update-h|\
36 --update-he|--update-hea|--update-head|--update-head-|\
37 --update-head-o|--update-head-ok)
43 -k|--k|--ke|--kee|--keep)
58 test -f "$GIT_DIR/branches/origin" ||
59 test -f "$GIT_DIR/remotes/origin" ||
60 die "Where do you want to fetch from today?"
65 remote=$(get_remote_url "$@")
68 rsync_slurped_objects=
70 if test "" = "$append"
72 : >"$GIT_DIR/FETCH_HEAD"
75 append_fetch_head () {
82 t) not_for_merge_='not-for-merge' ;;
83 '') not_for_merge_= ;;
86 # remote-nick is the URL given on the command line (or a shorthand)
87 # remote-name is the $GIT_DIR relative refs/ path we computed
89 case "$remote_name_" in
93 note_="$(expr "$remote_name_" : 'refs/heads/\(.*\)')"
94 note_="branch '$note_' of " ;;
96 note_="$(expr "$remote_name_" : 'refs/tags/\(.*\)')"
97 note_="tag '$note_' of " ;;
99 note_="$remote_name of " ;;
101 remote_1_=$(expr "$remote_" : '\(.*\)\.git/*$') &&
103 note_="$note_$remote_"
105 # 2.6.11-tree tag would not be happy to be fed to resolve.
106 if git-cat-file commit "$head_" >/dev/null 2>&1
108 headc_=$(git-rev-parse --verify "$head_^0") || exit
109 echo "$headc_ $not_for_merge_ $note_" >>"$GIT_DIR/FETCH_HEAD"
110 [ "$verbose" ] && echo >&2 "* committish: $head_"
111 [ "$verbose" ] && echo >&2 " $note_"
113 echo "$head_ not-for-merge $note_" >>"$GIT_DIR/FETCH_HEAD"
114 [ "$verbose" ] && echo >&2 "* non-commit: $head_"
115 [ "$verbose" ] && echo >&2 " $note_"
117 if test "$local_name_" != ""
119 # We are storing the head locally. Make sure that it is
120 # a fast forward (aka "reverse push").
121 fast_forward_local "$local_name_" "$head_" "$note_"
125 fast_forward_local () {
126 mkdir -p "$(dirname "$GIT_DIR/$1")"
129 # Tags need not be pointing at commits so there
130 # is no way to guarantee "fast-forward" anyway.
131 if test -f "$GIT_DIR/$1"
133 if now_=$(cat "$GIT_DIR/$1") && test "$now_" = "$2"
135 [ "$verbose" ] && echo >&2 "* $1: same as $3"
137 echo >&2 "* $1: updating with $3"
140 echo >&2 "* $1: storing $3"
142 git-update-ref "$1" "$2"
146 # $1 is the ref being updated.
147 # $2 is the new value for the ref.
148 local=$(git-rev-parse --verify "$1^0" 2>/dev/null)
151 # Require fast-forward.
152 mb=$(git-merge-base "$local" "$2") &&
155 echo >&2 "* $1: same as $3"
158 echo >&2 "* $1: fast forward to $3"
159 git-update-ref "$1" "$2" "$local"
165 echo >&2 "* $1: does not fast forward to $3;"
166 case ",$force,$single_force," in
168 echo >&2 " forcing update."
169 git-update-ref "$1" "$2" "$local"
172 echo >&2 " not updating."
177 echo >&2 "* $1: storing $3"
178 git-update-ref "$1" "$2"
184 case "$update_head_ok" in
186 orig_head=$(git-rev-parse --verify HEAD 2>/dev/null)
190 # If --tags (and later --heads or --all) is specified, then we are
191 # not talking about defaults stored in Pull: line of remotes or
192 # branches file, and just fetch those and refspecs explicitly given.
193 # Otherwise we do what we always did.
195 reflist=$(get_remote_refs_for_fetch "$@")
199 git-ls-remote --tags "$remote" |
205 if git-check-ref-format "$name"
207 echo ".${name}:${name}"
209 echo >&2 "warning: tag ${name} ignored"
214 # remote URL plus explicit refspecs; we need to merge them.
215 reflist="$reflist$LF$taglist"
217 # No explicit refspecs; fetch tags only.
230 # These are relative path from $GIT_DIR, typically starting at refs/
232 if expr "$ref" : '\.' >/dev/null
235 ref=$(expr "$ref" : '\.\(.*\)')
239 if expr "$ref" : '\+' >/dev/null
242 ref=$(expr "$ref" : '\+\(.*\)')
246 remote_name=$(expr "$ref" : '\([^:]*\):')
247 local_name=$(expr "$ref" : '[^:]*:\(.*\)')
249 rref="$rref$LF$remote_name"
251 # There are transports that can fetch only one head at a time...
253 http://* | https://*)
254 if [ -n "$GIT_SSL_NO_VERIFY" ]; then
257 remote_name_quoted=$(perl -e '
259 $u =~ s{([^-a-zA-Z0-9/.])}{sprintf"%%%02x",ord($1)}eg;
262 head=$(curl -nsfL $curl_extra_args "$remote/$remote_name_quoted") &&
263 expr "$head" : "$_x40\$" >/dev/null ||
264 die "Failed to fetch $remote_name from $remote"
265 echo >&2 Fetching "$remote_name from $remote" using http
266 git-http-fetch -v -a "$head" "$remote/" || exit
269 TMP_HEAD="$GIT_DIR/TMP_HEAD"
270 rsync -L -q "$remote/$remote_name" "$TMP_HEAD" || exit 1
271 head=$(git-rev-parse --verify TMP_HEAD)
273 test "$rsync_slurped_objects" || {
274 rsync -av --ignore-existing --exclude info \
275 "$remote/objects/" "$GIT_OBJECT_DIRECTORY/" || exit
277 # Look at objects/info/alternates for rsync -- http will
278 # support it natively and git native ones will do it on
279 # the remote end. Not having that file is not a crime.
280 rsync -q "$remote/objects/info/alternates" \
281 "$GIT_DIR/TMP_ALT" 2>/dev/null ||
282 rm -f "$GIT_DIR/TMP_ALT"
283 if test -f "$GIT_DIR/TMP_ALT"
285 resolve_alternates "$remote" <"$GIT_DIR/TMP_ALT" |
288 case "$alt" in 'bad alternate: '*) die "$alt";; esac
289 echo >&2 "Getting alternate: $alt"
290 rsync -av --ignore-existing --exclude info \
291 "$alt" "$GIT_OBJECT_DIRECTORY/" || exit
293 rm -f "$GIT_DIR/TMP_ALT"
295 rsync_slurped_objects=t
299 # We will do git native transport with just one call later.
303 append_fetch_head "$head" "$remote" \
304 "$remote_name" "$remote_nick" "$local_name" "$not_for_merge"
309 http://* | https://* | rsync://* )
310 ;; # we are already done.
312 ( : subshell because we muck with IFS
315 git-fetch-pack $keep "$remote" $rref || echo failed "$remote"
317 while read sha1 remote_name
321 echo >&2 "Fetch failure: $remote"
349 local_name=$(expr "$found" : '[^:]*:\(.*\)')
350 append_fetch_head "$sha1" "$remote" \
351 "$remote_name" "$remote_nick" "$local_name" "$not_for_merge"
358 fetch_main "$reflist"
360 # automated tag following
361 case "$no_tags$tags" in
364 git-ls-remote --tags "$remote" |
365 sed -ne 's|^\([0-9a-f]*\)[ ]\(refs/tags/.*\)^{}$|\1 \2|p' |
368 test -f "$GIT_DIR/$name" && continue
369 git-check-ref-format "$name" || {
370 echo >&2 "warning: tag ${name} ignored"
373 git-cat-file -t "$sha1" >/dev/null 2>&1 || continue
374 echo >&2 "Auto-following $name"
375 echo ".${name}:${name}"
380 fetch_main "$taglist" ;;
384 # If the original head was empty (i.e. no "master" yet), or
385 # if we were told not to worry, we do not have to check.
386 case ",$update_head_ok,$orig_head," in
390 curr_head=$(git-rev-parse --verify HEAD 2>/dev/null)
391 if test "$curr_head" != "$orig_head"
393 git-update-ref HEAD "$orig_head"
394 die "Cannot fetch into the current branch."