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Commit | Line | Data |
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7ef76925 LT |
1 | #!/bin/sh |
2 | # | |
87358b7a FK |
3 | |
4 | USAGE='<fetch-options> <repository> <refspec>...' | |
4da90285 | 5 | SUBDIRECTORY_OK=Yes |
ae2b0f15 | 6 | . git-sh-setup |
f9474132 SP |
7 | set_reflog_action "fetch $*" |
8 | ||
4da90285 JH |
9 | TOP=$(git-rev-parse --show-cdup) |
10 | if test ! -z "$TOP" | |
11 | then | |
12 | cd "$TOP" | |
13 | fi | |
215a7ad1 | 14 | . git-parse-remote |
853a3697 JH |
15 | _x40='[0-9a-f][0-9a-f][0-9a-f][0-9a-f][0-9a-f]' |
16 | _x40="$_x40$_x40$_x40$_x40$_x40$_x40$_x40$_x40" | |
17 | ||
221e743c JH |
18 | LF=' |
19 | ' | |
20 | IFS="$LF" | |
21 | ||
03febf99 | 22 | no_tags= |
ed1aadf1 | 23 | tags= |
853a3697 | 24 | append= |
ae2da406 | 25 | force= |
583122cd | 26 | verbose= |
b10ac50f | 27 | update_head_ok= |
2c620a1a | 28 | exec= |
96b086d6 | 29 | upload_pack= |
920ccbfc | 30 | keep= |
f53514bc | 31 | shallow_depth= |
ae2da406 JH |
32 | while case "$#" in 0) break ;; esac |
33 | do | |
34 | case "$1" in | |
35 | -a|--a|--ap|--app|--appe|--appen|--append) | |
36 | append=t | |
ae2da406 | 37 | ;; |
2796a9de JH |
38 | --upl|--uplo|--uploa|--upload|--upload-|--upload-p|\ |
39 | --upload-pa|--upload-pac|--upload-pack) | |
2c620a1a MO |
40 | shift |
41 | exec="--exec=$1" | |
96b086d6 | 42 | upload_pack="-u $1" |
2c620a1a | 43 | ;; |
ae2da406 JH |
44 | -f|--f|--fo|--for|--forc|--force) |
45 | force=t | |
b10ac50f | 46 | ;; |
ed1aadf1 LT |
47 | -t|--t|--ta|--tag|--tags) |
48 | tags=t | |
49 | ;; | |
03febf99 JH |
50 | -n|--n|--no|--no-|--no-t|--no-ta|--no-tag|--no-tags) |
51 | no_tags=t | |
52 | ;; | |
b10ac50f JH |
53 | -u|--u|--up|--upd|--upda|--updat|--update|--update-|--update-h|\ |
54 | --update-he|--update-hea|--update-head|--update-head-|\ | |
55 | --update-head-o|--update-head-ok) | |
56 | update_head_ok=t | |
ae2da406 | 57 | ;; |
583122cd LT |
58 | -v|--verbose) |
59 | verbose=Yes | |
60 | ;; | |
0f76f526 | 61 | -k|--k|--ke|--kee|--keep) |
576162a4 | 62 | keep='-k -k' |
0f76f526 | 63 | ;; |
f53514bc JS |
64 | --depth=*) |
65 | shallow_depth="--depth=`expr "z$1" : 'z-[^=]*=\(.*\)'`" | |
66 | ;; | |
67 | --depth) | |
68 | shift | |
69 | shallow_depth="--depth=$1" | |
70 | ;; | |
87358b7a FK |
71 | -*) |
72 | usage | |
73 | ;; | |
ae2da406 JH |
74 | *) |
75 | break | |
76 | ;; | |
77 | esac | |
b10ac50f | 78 | shift |
ae2da406 JH |
79 | done |
80 | ||
853a3697 JH |
81 | case "$#" in |
82 | 0) | |
648ad18f SB |
83 | origin=$(get_default_remote) |
84 | test -n "$(get_remote_url ${origin})" || | |
85 | die "Where do you want to fetch from today?" | |
86 | set x $origin ; shift ;; | |
853a3697 | 87 | esac |
ae2da406 | 88 | |
853a3697 JH |
89 | remote_nick="$1" |
90 | remote=$(get_remote_url "$@") | |
91 | refs= | |
92 | rref= | |
93 | rsync_slurped_objects= | |
94 | ||
95 | if test "" = "$append" | |
96 | then | |
df34297a | 97 | : >"$GIT_DIR/FETCH_HEAD" |
853a3697 JH |
98 | fi |
99 | ||
28b8e61f JH |
100 | # Global that is reused later |
101 | ls_remote_result=$(git ls-remote $upload_pack "$remote") || | |
b3d98993 | 102 | die "Cannot get the repository state from $remote" |
28b8e61f | 103 | |
853a3697 JH |
104 | append_fetch_head () { |
105 | head_="$1" | |
106 | remote_="$2" | |
107 | remote_name_="$3" | |
108 | remote_nick_="$4" | |
109 | local_name_="$5" | |
05dd8e2e JH |
110 | case "$6" in |
111 | t) not_for_merge_='not-for-merge' ;; | |
112 | '') not_for_merge_= ;; | |
113 | esac | |
853a3697 | 114 | |
06ec2b4b JH |
115 | # remote-nick is the URL given on the command line (or a shorthand) |
116 | # remote-name is the $GIT_DIR relative refs/ path we computed | |
117 | # for this refspec. | |
687b8be8 EW |
118 | |
119 | # the $note_ variable will be fed to git-fmt-merge-msg for further | |
120 | # processing. | |
06ec2b4b JH |
121 | case "$remote_name_" in |
122 | HEAD) | |
123 | note_= ;; | |
124 | refs/heads/*) | |
125 | note_="$(expr "$remote_name_" : 'refs/heads/\(.*\)')" | |
b91fb518 | 126 | note_="branch '$note_' of " ;; |
06ec2b4b JH |
127 | refs/tags/*) |
128 | note_="$(expr "$remote_name_" : 'refs/tags/\(.*\)')" | |
b91fb518 | 129 | note_="tag '$note_' of " ;; |
687b8be8 EW |
130 | refs/remotes/*) |
131 | note_="$(expr "$remote_name_" : 'refs/remotes/\(.*\)')" | |
132 | note_="remote branch '$note_' of " ;; | |
06ec2b4b | 133 | *) |
b91fb518 | 134 | note_="$remote_name of " ;; |
06ec2b4b | 135 | esac |
f327dbce | 136 | remote_1_=$(expr "z$remote_" : 'z\(.*\)\.git/*$') && |
b91fb518 JH |
137 | remote_="$remote_1_" |
138 | note_="$note_$remote_" | |
06ec2b4b | 139 | |
853a3697 JH |
140 | # 2.6.11-tree tag would not be happy to be fed to resolve. |
141 | if git-cat-file commit "$head_" >/dev/null 2>&1 | |
142 | then | |
8572aa85 | 143 | headc_=$(git-rev-parse --verify "$head_^0") || exit |
df34297a | 144 | echo "$headc_ $not_for_merge_ $note_" >>"$GIT_DIR/FETCH_HEAD" |
853a3697 | 145 | else |
df34297a | 146 | echo "$head_ not-for-merge $note_" >>"$GIT_DIR/FETCH_HEAD" |
853a3697 | 147 | fi |
20a3847d SB |
148 | |
149 | update_local_ref "$local_name_" "$head_" "$note_" | |
853a3697 JH |
150 | } |
151 | ||
20a3847d SB |
152 | update_local_ref () { |
153 | # If we are storing the head locally make sure that it is | |
154 | # a fast forward (aka "reverse push"). | |
155 | ||
156 | label_=$(git-cat-file -t $2) | |
157 | newshort_=$(git-rev-parse --short $2) | |
158 | if test -z "$1" ; then | |
159 | [ "$verbose" ] && echo >&2 "* fetched $3" | |
160 | [ "$verbose" ] && echo >&2 " $label_: $newshort_" | |
161 | return 0 | |
162 | fi | |
fbc72799 JH |
163 | oldshort_=$(git show-ref --hash --abbrev "$1" 2>/dev/null) |
164 | ||
853a3697 JH |
165 | case "$1" in |
166 | refs/tags/*) | |
167 | # Tags need not be pointing at commits so there | |
168 | # is no way to guarantee "fast-forward" anyway. | |
fbc72799 | 169 | if test -n "$oldshort_" |
ae2da406 | 170 | then |
fbc72799 | 171 | if now_=$(git show-ref --hash "$1") && test "$now_" = "$2" |
f8765797 | 172 | then |
20a3847d SB |
173 | [ "$verbose" ] && echo >&2 "* $1: same as $3" |
174 | [ "$verbose" ] && echo >&2 " $label_: $newshort_" ||: | |
f8765797 JH |
175 | else |
176 | echo >&2 "* $1: updating with $3" | |
20a3847d | 177 | echo >&2 " $label_: $newshort_" |
f9474132 | 178 | git-update-ref -m "$GIT_REFLOG_ACTION: updating tag" "$1" "$2" |
f8765797 | 179 | fi |
ae2da406 | 180 | else |
06ec2b4b | 181 | echo >&2 "* $1: storing $3" |
20a3847d | 182 | echo >&2 " $label_: $newshort_" |
f9474132 | 183 | git-update-ref -m "$GIT_REFLOG_ACTION: storing tag" "$1" "$2" |
ae2da406 | 184 | fi |
bf7960eb | 185 | ;; |
ae2da406 | 186 | |
687b8be8 | 187 | refs/heads/* | refs/remotes/*) |
bf7960eb JH |
188 | # $1 is the ref being updated. |
189 | # $2 is the new value for the ref. | |
190 | local=$(git-rev-parse --verify "$1^0" 2>/dev/null) | |
191 | if test "$local" | |
33b83034 | 192 | then |
bf7960eb | 193 | # Require fast-forward. |
853a3697 JH |
194 | mb=$(git-merge-base "$local" "$2") && |
195 | case "$2,$mb" in | |
196 | $local,*) | |
ea5aeb07 JH |
197 | if test -n "$verbose" |
198 | then | |
199 | echo >&2 "* $1: same as $3" | |
20a3847d | 200 | echo >&2 " $label_: $newshort_" |
ea5aeb07 | 201 | fi |
853a3697 JH |
202 | ;; |
203 | *,$local) | |
06ec2b4b | 204 | echo >&2 "* $1: fast forward to $3" |
20a3847d | 205 | echo >&2 " old..new: $oldshort_..$newshort_" |
f9474132 | 206 | git-update-ref -m "$GIT_REFLOG_ACTION: fast-forward" "$1" "$2" "$local" |
853a3697 JH |
207 | ;; |
208 | *) | |
209 | false | |
210 | ;; | |
211 | esac || { | |
bf7960eb JH |
212 | case ",$force,$single_force," in |
213 | *,t,*) | |
20a3847d SB |
214 | echo >&2 "* $1: forcing update to non-fast forward $3" |
215 | echo >&2 " old...new: $oldshort_...$newshort_" | |
f9474132 | 216 | git-update-ref -m "$GIT_REFLOG_ACTION: forced-update" "$1" "$2" "$local" |
ae2da406 JH |
217 | ;; |
218 | *) | |
20a3847d SB |
219 | echo >&2 "* $1: not updating to non-fast forward $3" |
220 | echo >&2 " old...new: $oldshort_...$newshort_" | |
a9698bb2 | 221 | exit 1 |
ae2da406 JH |
222 | ;; |
223 | esac | |
853a3697 JH |
224 | } |
225 | else | |
bf7960eb | 226 | echo >&2 "* $1: storing $3" |
20a3847d | 227 | echo >&2 " $label_: $newshort_" |
f9474132 | 228 | git-update-ref -m "$GIT_REFLOG_ACTION: storing head" "$1" "$2" |
33b83034 | 229 | fi |
0a623e7c | 230 | ;; |
853a3697 JH |
231 | esac |
232 | } | |
233 | ||
b10ac50f JH |
234 | case "$update_head_ok" in |
235 | '') | |
bf7960eb | 236 | orig_head=$(git-rev-parse --verify HEAD 2>/dev/null) |
b10ac50f JH |
237 | ;; |
238 | esac | |
239 | ||
ed1aadf1 LT |
240 | # If --tags (and later --heads or --all) is specified, then we are |
241 | # not talking about defaults stored in Pull: line of remotes or | |
242 | # branches file, and just fetch those and refspecs explicitly given. | |
243 | # Otherwise we do what we always did. | |
244 | ||
245 | reflist=$(get_remote_refs_for_fetch "$@") | |
246 | if test "$tags" | |
247 | then | |
ed9f7c95 | 248 | taglist=`IFS=' ' && |
28b8e61f | 249 | echo "$ls_remote_result" | |
81214e4d JH |
250 | while read sha1 name |
251 | do | |
57a39690 JH |
252 | case "$sha1" in |
253 | fail) | |
254 | exit 1 | |
255 | esac | |
81214e4d | 256 | case "$name" in |
878ccb26 | 257 | *^*) continue ;; |
28b8e61f JH |
258 | refs/tags/*) ;; |
259 | *) continue ;; | |
81214e4d JH |
260 | esac |
261 | if git-check-ref-format "$name" | |
262 | then | |
263 | echo ".${name}:${name}" | |
264 | else | |
265 | echo >&2 "warning: tag ${name} ignored" | |
266 | fi | |
57a39690 | 267 | done` || exit |
ed1aadf1 LT |
268 | if test "$#" -gt 1 |
269 | then | |
270 | # remote URL plus explicit refspecs; we need to merge them. | |
221e743c | 271 | reflist="$reflist$LF$taglist" |
ed1aadf1 LT |
272 | else |
273 | # No explicit refspecs; fetch tags only. | |
274 | reflist=$taglist | |
275 | fi | |
276 | fi | |
277 | ||
03febf99 JH |
278 | fetch_main () { |
279 | reflist="$1" | |
280 | refs= | |
4839bd8a | 281 | rref= |
f170e4b3 | 282 | |
03febf99 JH |
283 | for ref in $reflist |
284 | do | |
285 | refs="$refs$LF$ref" | |
f170e4b3 | 286 | |
03febf99 JH |
287 | # These are relative path from $GIT_DIR, typically starting at refs/ |
288 | # but may be HEAD | |
f327dbce | 289 | if expr "z$ref" : 'z\.' >/dev/null |
03febf99 JH |
290 | then |
291 | not_for_merge=t | |
f327dbce | 292 | ref=$(expr "z$ref" : 'z\.\(.*\)') |
03febf99 JH |
293 | else |
294 | not_for_merge= | |
295 | fi | |
dfdcb558 | 296 | if expr "z$ref" : 'z+' >/dev/null |
03febf99 JH |
297 | then |
298 | single_force=t | |
dfdcb558 | 299 | ref=$(expr "z$ref" : 'z+\(.*\)') |
03febf99 JH |
300 | else |
301 | single_force= | |
302 | fi | |
f327dbce MW |
303 | remote_name=$(expr "z$ref" : 'z\([^:]*\):') |
304 | local_name=$(expr "z$ref" : 'z[^:]*:\(.*\)') | |
853a3697 | 305 | |
03febf99 | 306 | rref="$rref$LF$remote_name" |
4447badc | 307 | |
03febf99 JH |
308 | # There are transports that can fetch only one head at a time... |
309 | case "$remote" in | |
38529e28 | 310 | http://* | https://* | ftp://*) |
f53514bc JS |
311 | test -n "$shallow_depth" && |
312 | die "shallow clone with http not supported" | |
ddaf7314 | 313 | proto=`expr "$remote" : '\([^:]*\):'` |
03febf99 JH |
314 | if [ -n "$GIT_SSL_NO_VERIFY" ]; then |
315 | curl_extra_args="-k" | |
316 | fi | |
3ea099d4 SK |
317 | if [ -n "$GIT_CURL_FTP_NO_EPSV" -o \ |
318 | "`git-repo-config --bool http.noEPSV`" = true ]; then | |
319 | noepsv_opt="--disable-epsv" | |
320 | fi | |
2986c022 JH |
321 | |
322 | # Find $remote_name from ls-remote output. | |
323 | head=$( | |
324 | IFS=' ' | |
325 | echo "$ls_remote_result" | | |
326 | while read sha1 name | |
327 | do | |
328 | test "z$name" = "z$remote_name" || continue | |
329 | echo "$sha1" | |
330 | break | |
331 | done | |
332 | ) | |
f327dbce | 333 | expr "z$head" : "z$_x40\$" >/dev/null || |
2986c022 | 334 | die "No such ref $remote_name at $remote" |
ddaf7314 | 335 | echo >&2 "Fetching $remote_name from $remote using $proto" |
03febf99 JH |
336 | git-http-fetch -v -a "$head" "$remote/" || exit |
337 | ;; | |
338 | rsync://*) | |
f53514bc JS |
339 | test -n "$shallow_depth" && |
340 | die "shallow clone with rsync not supported" | |
03febf99 JH |
341 | TMP_HEAD="$GIT_DIR/TMP_HEAD" |
342 | rsync -L -q "$remote/$remote_name" "$TMP_HEAD" || exit 1 | |
343 | head=$(git-rev-parse --verify TMP_HEAD) | |
344 | rm -f "$TMP_HEAD" | |
345 | test "$rsync_slurped_objects" || { | |
346 | rsync -av --ignore-existing --exclude info \ | |
347 | "$remote/objects/" "$GIT_OBJECT_DIRECTORY/" || exit | |
853a3697 | 348 | |
03febf99 JH |
349 | # Look at objects/info/alternates for rsync -- http will |
350 | # support it natively and git native ones will do it on | |
351 | # the remote end. Not having that file is not a crime. | |
352 | rsync -q "$remote/objects/info/alternates" \ | |
353 | "$GIT_DIR/TMP_ALT" 2>/dev/null || | |
354 | rm -f "$GIT_DIR/TMP_ALT" | |
355 | if test -f "$GIT_DIR/TMP_ALT" | |
356 | then | |
357 | resolve_alternates "$remote" <"$GIT_DIR/TMP_ALT" | | |
358 | while read alt | |
359 | do | |
360 | case "$alt" in 'bad alternate: '*) die "$alt";; esac | |
361 | echo >&2 "Getting alternate: $alt" | |
362 | rsync -av --ignore-existing --exclude info \ | |
363 | "$alt" "$GIT_OBJECT_DIRECTORY/" || exit | |
364 | done | |
365 | rm -f "$GIT_DIR/TMP_ALT" | |
366 | fi | |
367 | rsync_slurped_objects=t | |
368 | } | |
369 | ;; | |
370 | *) | |
371 | # We will do git native transport with just one call later. | |
372 | continue ;; | |
373 | esac | |
f170e4b3 | 374 | |
03febf99 | 375 | append_fetch_head "$head" "$remote" \ |
f64d7fd2 | 376 | "$remote_name" "$remote_nick" "$local_name" "$not_for_merge" || exit |
853a3697 | 377 | |
03febf99 JH |
378 | done |
379 | ||
380 | case "$remote" in | |
38529e28 | 381 | http://* | https://* | ftp://* | rsync://* ) |
03febf99 JH |
382 | ;; # we are already done. |
383 | *) | |
384 | ( : subshell because we muck with IFS | |
385 | IFS=" $LF" | |
386 | ( | |
ac9c1108 JH |
387 | git-fetch-pack --thin $exec $keep $shallow_depth "$remote" $rref || |
388 | echo failed "$remote" | |
03febf99 | 389 | ) | |
ac9c1108 JH |
390 | ( |
391 | trap ' | |
392 | if test -n "$keepfile" && test -f "$keepfile" | |
393 | then | |
394 | rm -f "$keepfile" | |
395 | fi | |
396 | ' 0 | |
397 | ||
398 | keepfile= | |
399 | while read sha1 remote_name | |
400 | do | |
03febf99 JH |
401 | case "$sha1" in |
402 | failed) | |
403 | echo >&2 "Fetch failure: $remote" | |
404 | exit 1 ;; | |
576162a4 NP |
405 | # special line coming from index-pack with the pack name |
406 | pack) | |
407 | continue ;; | |
408 | keep) | |
ac9c1108 | 409 | keepfile="$GIT_OBJECT_DIRECTORY/pack/pack-$remote_name.keep" |
576162a4 | 410 | continue ;; |
03febf99 JH |
411 | esac |
412 | found= | |
413 | single_force= | |
414 | for ref in $refs | |
415 | do | |
416 | case "$ref" in | |
417 | +$remote_name:*) | |
418 | single_force=t | |
419 | not_for_merge= | |
420 | found="$ref" | |
421 | break ;; | |
422 | .+$remote_name:*) | |
423 | single_force=t | |
424 | not_for_merge=t | |
425 | found="$ref" | |
426 | break ;; | |
427 | .$remote_name:*) | |
428 | not_for_merge=t | |
429 | found="$ref" | |
430 | break ;; | |
431 | $remote_name:*) | |
432 | not_for_merge= | |
433 | found="$ref" | |
434 | break ;; | |
435 | esac | |
436 | done | |
f327dbce | 437 | local_name=$(expr "z$found" : 'z[^:]*:\(.*\)') |
03febf99 | 438 | append_fetch_head "$sha1" "$remote" \ |
f64d7fd2 JH |
439 | "$remote_name" "$remote_nick" "$local_name" \ |
440 | "$not_for_merge" || exit | |
ac9c1108 JH |
441 | done |
442 | ) | |
03febf99 JH |
443 | ) || exit ;; |
444 | esac | |
445 | ||
446 | } | |
447 | ||
f64d7fd2 | 448 | fetch_main "$reflist" || exit |
03febf99 JH |
449 | |
450 | # automated tag following | |
451 | case "$no_tags$tags" in | |
452 | '') | |
6dc78e69 JH |
453 | case "$reflist" in |
454 | *:refs/*) | |
455 | # effective only when we are following remote branch | |
456 | # using local tracking branch. | |
ed9f7c95 | 457 | taglist=$(IFS=' ' && |
28b8e61f | 458 | echo "$ls_remote_result" | |
ed9f7c95 | 459 | git-show-ref --exclude-existing=refs/tags/ | |
6dc78e69 JH |
460 | while read sha1 name |
461 | do | |
6dc78e69 JH |
462 | git-cat-file -t "$sha1" >/dev/null 2>&1 || continue |
463 | echo >&2 "Auto-following $name" | |
464 | echo ".${name}:${name}" | |
465 | done) | |
466 | esac | |
03febf99 JH |
467 | case "$taglist" in |
468 | '') ;; | |
469 | ?*) | |
d1586315 AJ |
470 | # do not deepen a shallow tree when following tags |
471 | shallow_depth= | |
f64d7fd2 | 472 | fetch_main "$taglist" || exit ;; |
03febf99 | 473 | esac |
853a3697 | 474 | esac |
b10ac50f JH |
475 | |
476 | # If the original head was empty (i.e. no "master" yet), or | |
477 | # if we were told not to worry, we do not have to check. | |
9861718b JH |
478 | case "$orig_head" in |
479 | '') | |
b10ac50f | 480 | ;; |
9861718b | 481 | ?*) |
bf7960eb | 482 | curr_head=$(git-rev-parse --verify HEAD 2>/dev/null) |
b10ac50f JH |
483 | if test "$curr_head" != "$orig_head" |
484 | then | |
55b7835e | 485 | git-update-ref \ |
f9474132 | 486 | -m "$GIT_REFLOG_ACTION: Undoing incorrectly fetched HEAD." \ |
55b7835e | 487 | HEAD "$orig_head" |
b10ac50f JH |
488 | die "Cannot fetch into the current branch." |
489 | fi | |
490 | ;; | |
491 | esac |