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Commit | Line | Data |
---|---|---|
7ef76925 LT |
1 | #!/bin/sh |
2 | # | |
87358b7a FK |
3 | |
4 | USAGE='<fetch-options> <repository> <refspec>...' | |
ae2b0f15 | 5 | . git-sh-setup |
215a7ad1 | 6 | . git-parse-remote |
853a3697 JH |
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" | |
9 | ||
221e743c JH |
10 | LF=' |
11 | ' | |
12 | IFS="$LF" | |
13 | ||
55b7835e | 14 | rloga=fetch |
03febf99 | 15 | no_tags= |
ed1aadf1 | 16 | tags= |
853a3697 | 17 | append= |
ae2da406 | 18 | force= |
583122cd | 19 | verbose= |
b10ac50f | 20 | update_head_ok= |
2c620a1a | 21 | exec= |
96b086d6 | 22 | upload_pack= |
482faa8d | 23 | keep=--thin |
ae2da406 JH |
24 | while case "$#" in 0) break ;; esac |
25 | do | |
26 | case "$1" in | |
27 | -a|--a|--ap|--app|--appe|--appen|--append) | |
28 | append=t | |
ae2da406 | 29 | ;; |
2796a9de JH |
30 | --upl|--uplo|--uploa|--upload|--upload-|--upload-p|\ |
31 | --upload-pa|--upload-pac|--upload-pack) | |
2c620a1a MO |
32 | shift |
33 | exec="--exec=$1" | |
96b086d6 | 34 | upload_pack="-u $1" |
2c620a1a | 35 | ;; |
ae2da406 JH |
36 | -f|--f|--fo|--for|--forc|--force) |
37 | force=t | |
b10ac50f | 38 | ;; |
ed1aadf1 LT |
39 | -t|--t|--ta|--tag|--tags) |
40 | tags=t | |
41 | ;; | |
03febf99 JH |
42 | -n|--n|--no|--no-|--no-t|--no-ta|--no-tag|--no-tags) |
43 | no_tags=t | |
44 | ;; | |
b10ac50f JH |
45 | -u|--u|--up|--upd|--upda|--updat|--update|--update-|--update-h|\ |
46 | --update-he|--update-hea|--update-head|--update-head-|\ | |
47 | --update-head-o|--update-head-ok) | |
48 | update_head_ok=t | |
ae2da406 | 49 | ;; |
583122cd LT |
50 | -v|--verbose) |
51 | verbose=Yes | |
52 | ;; | |
0f76f526 TP |
53 | -k|--k|--ke|--kee|--keep) |
54 | keep=--keep | |
55 | ;; | |
55b7835e SP |
56 | --reflog-action=*) |
57 | rloga=`expr "z$1" : 'z-[^=]*=\(.*\)'` | |
58 | ;; | |
87358b7a FK |
59 | -*) |
60 | usage | |
61 | ;; | |
ae2da406 JH |
62 | *) |
63 | break | |
64 | ;; | |
65 | esac | |
b10ac50f | 66 | shift |
ae2da406 JH |
67 | done |
68 | ||
853a3697 JH |
69 | case "$#" in |
70 | 0) | |
648ad18f SB |
71 | origin=$(get_default_remote) |
72 | test -n "$(get_remote_url ${origin})" || | |
73 | die "Where do you want to fetch from today?" | |
74 | set x $origin ; shift ;; | |
853a3697 | 75 | esac |
ae2da406 | 76 | |
853a3697 JH |
77 | remote_nick="$1" |
78 | remote=$(get_remote_url "$@") | |
79 | refs= | |
80 | rref= | |
81 | rsync_slurped_objects= | |
82 | ||
55b7835e | 83 | rloga="$rloga $remote_nick" |
ed0e078f | 84 | test "$remote_nick" = "$remote" || rloga="$rloga $remote" |
55b7835e | 85 | |
853a3697 JH |
86 | if test "" = "$append" |
87 | then | |
df34297a | 88 | : >"$GIT_DIR/FETCH_HEAD" |
853a3697 JH |
89 | fi |
90 | ||
91 | append_fetch_head () { | |
92 | head_="$1" | |
93 | remote_="$2" | |
94 | remote_name_="$3" | |
95 | remote_nick_="$4" | |
96 | local_name_="$5" | |
05dd8e2e JH |
97 | case "$6" in |
98 | t) not_for_merge_='not-for-merge' ;; | |
99 | '') not_for_merge_= ;; | |
100 | esac | |
853a3697 | 101 | |
06ec2b4b JH |
102 | # remote-nick is the URL given on the command line (or a shorthand) |
103 | # remote-name is the $GIT_DIR relative refs/ path we computed | |
104 | # for this refspec. | |
687b8be8 EW |
105 | |
106 | # the $note_ variable will be fed to git-fmt-merge-msg for further | |
107 | # processing. | |
06ec2b4b JH |
108 | case "$remote_name_" in |
109 | HEAD) | |
110 | note_= ;; | |
111 | refs/heads/*) | |
112 | note_="$(expr "$remote_name_" : 'refs/heads/\(.*\)')" | |
b91fb518 | 113 | note_="branch '$note_' of " ;; |
06ec2b4b JH |
114 | refs/tags/*) |
115 | note_="$(expr "$remote_name_" : 'refs/tags/\(.*\)')" | |
b91fb518 | 116 | note_="tag '$note_' of " ;; |
687b8be8 EW |
117 | refs/remotes/*) |
118 | note_="$(expr "$remote_name_" : 'refs/remotes/\(.*\)')" | |
119 | note_="remote branch '$note_' of " ;; | |
06ec2b4b | 120 | *) |
b91fb518 | 121 | note_="$remote_name of " ;; |
06ec2b4b | 122 | esac |
f327dbce | 123 | remote_1_=$(expr "z$remote_" : 'z\(.*\)\.git/*$') && |
b91fb518 JH |
124 | remote_="$remote_1_" |
125 | note_="$note_$remote_" | |
06ec2b4b | 126 | |
853a3697 JH |
127 | # 2.6.11-tree tag would not be happy to be fed to resolve. |
128 | if git-cat-file commit "$head_" >/dev/null 2>&1 | |
129 | then | |
8572aa85 | 130 | headc_=$(git-rev-parse --verify "$head_^0") || exit |
df34297a | 131 | echo "$headc_ $not_for_merge_ $note_" >>"$GIT_DIR/FETCH_HEAD" |
583122cd LT |
132 | [ "$verbose" ] && echo >&2 "* committish: $head_" |
133 | [ "$verbose" ] && echo >&2 " $note_" | |
853a3697 | 134 | else |
df34297a | 135 | echo "$head_ not-for-merge $note_" >>"$GIT_DIR/FETCH_HEAD" |
583122cd LT |
136 | [ "$verbose" ] && echo >&2 "* non-commit: $head_" |
137 | [ "$verbose" ] && echo >&2 " $note_" | |
853a3697 JH |
138 | fi |
139 | if test "$local_name_" != "" | |
140 | then | |
141 | # We are storing the head locally. Make sure that it is | |
142 | # a fast forward (aka "reverse push"). | |
06ec2b4b | 143 | fast_forward_local "$local_name_" "$head_" "$note_" |
853a3697 JH |
144 | fi |
145 | } | |
146 | ||
147 | fast_forward_local () { | |
866ff2f7 | 148 | mkdir -p "$(dirname "$GIT_DIR/$1")" |
853a3697 JH |
149 | case "$1" in |
150 | refs/tags/*) | |
151 | # Tags need not be pointing at commits so there | |
152 | # is no way to guarantee "fast-forward" anyway. | |
ae2da406 JH |
153 | if test -f "$GIT_DIR/$1" |
154 | then | |
f8765797 JH |
155 | if now_=$(cat "$GIT_DIR/$1") && test "$now_" = "$2" |
156 | then | |
7eae7b99 | 157 | [ "$verbose" ] && echo >&2 "* $1: same as $3" ||: |
f8765797 JH |
158 | else |
159 | echo >&2 "* $1: updating with $3" | |
55b7835e | 160 | git-update-ref -m "$rloga: updating tag" "$1" "$2" |
f8765797 | 161 | fi |
ae2da406 | 162 | else |
06ec2b4b | 163 | echo >&2 "* $1: storing $3" |
55b7835e | 164 | git-update-ref -m "$rloga: storing tag" "$1" "$2" |
ae2da406 | 165 | fi |
bf7960eb | 166 | ;; |
ae2da406 | 167 | |
687b8be8 | 168 | refs/heads/* | refs/remotes/*) |
bf7960eb JH |
169 | # $1 is the ref being updated. |
170 | # $2 is the new value for the ref. | |
171 | local=$(git-rev-parse --verify "$1^0" 2>/dev/null) | |
172 | if test "$local" | |
33b83034 | 173 | then |
bf7960eb | 174 | # Require fast-forward. |
853a3697 JH |
175 | mb=$(git-merge-base "$local" "$2") && |
176 | case "$2,$mb" in | |
177 | $local,*) | |
ea5aeb07 JH |
178 | if test -n "$verbose" |
179 | then | |
180 | echo >&2 "* $1: same as $3" | |
181 | fi | |
853a3697 JH |
182 | ;; |
183 | *,$local) | |
06ec2b4b | 184 | echo >&2 "* $1: fast forward to $3" |
9d7f73d4 | 185 | echo >&2 " from $local to $2" |
55b7835e | 186 | git-update-ref -m "$rloga: fast-forward" "$1" "$2" "$local" |
853a3697 JH |
187 | ;; |
188 | *) | |
189 | false | |
190 | ;; | |
191 | esac || { | |
06ec2b4b | 192 | echo >&2 "* $1: does not fast forward to $3;" |
bf7960eb JH |
193 | case ",$force,$single_force," in |
194 | *,t,*) | |
06ec2b4b | 195 | echo >&2 " forcing update." |
55b7835e | 196 | git-update-ref -m "$rloga: forced-update" "$1" "$2" "$local" |
ae2da406 JH |
197 | ;; |
198 | *) | |
bf7960eb | 199 | echo >&2 " not updating." |
a9698bb2 | 200 | exit 1 |
ae2da406 JH |
201 | ;; |
202 | esac | |
853a3697 JH |
203 | } |
204 | else | |
bf7960eb | 205 | echo >&2 "* $1: storing $3" |
55b7835e | 206 | git-update-ref -m "$rloga: storing head" "$1" "$2" |
33b83034 | 207 | fi |
0a623e7c | 208 | ;; |
853a3697 JH |
209 | esac |
210 | } | |
211 | ||
b10ac50f JH |
212 | case "$update_head_ok" in |
213 | '') | |
bf7960eb | 214 | orig_head=$(git-rev-parse --verify HEAD 2>/dev/null) |
b10ac50f JH |
215 | ;; |
216 | esac | |
217 | ||
ed1aadf1 LT |
218 | # If --tags (and later --heads or --all) is specified, then we are |
219 | # not talking about defaults stored in Pull: line of remotes or | |
220 | # branches file, and just fetch those and refspecs explicitly given. | |
221 | # Otherwise we do what we always did. | |
222 | ||
223 | reflist=$(get_remote_refs_for_fetch "$@") | |
224 | if test "$tags" | |
225 | then | |
878ccb26 | 226 | taglist=`IFS=" " && |
57a39690 JH |
227 | ( |
228 | git-ls-remote $upload_pack --tags "$remote" || | |
229 | echo fail ouch | |
230 | ) | | |
81214e4d JH |
231 | while read sha1 name |
232 | do | |
57a39690 JH |
233 | case "$sha1" in |
234 | fail) | |
235 | exit 1 | |
236 | esac | |
81214e4d | 237 | case "$name" in |
878ccb26 | 238 | *^*) continue ;; |
81214e4d JH |
239 | esac |
240 | if git-check-ref-format "$name" | |
241 | then | |
242 | echo ".${name}:${name}" | |
243 | else | |
244 | echo >&2 "warning: tag ${name} ignored" | |
245 | fi | |
57a39690 | 246 | done` || exit |
ed1aadf1 LT |
247 | if test "$#" -gt 1 |
248 | then | |
249 | # remote URL plus explicit refspecs; we need to merge them. | |
221e743c | 250 | reflist="$reflist$LF$taglist" |
ed1aadf1 LT |
251 | else |
252 | # No explicit refspecs; fetch tags only. | |
253 | reflist=$taglist | |
254 | fi | |
255 | fi | |
256 | ||
03febf99 JH |
257 | fetch_main () { |
258 | reflist="$1" | |
259 | refs= | |
f170e4b3 | 260 | |
03febf99 JH |
261 | for ref in $reflist |
262 | do | |
263 | refs="$refs$LF$ref" | |
f170e4b3 | 264 | |
03febf99 JH |
265 | # These are relative path from $GIT_DIR, typically starting at refs/ |
266 | # but may be HEAD | |
f327dbce | 267 | if expr "z$ref" : 'z\.' >/dev/null |
03febf99 JH |
268 | then |
269 | not_for_merge=t | |
f327dbce | 270 | ref=$(expr "z$ref" : 'z\.\(.*\)') |
03febf99 JH |
271 | else |
272 | not_for_merge= | |
273 | fi | |
dfdcb558 | 274 | if expr "z$ref" : 'z+' >/dev/null |
03febf99 JH |
275 | then |
276 | single_force=t | |
dfdcb558 | 277 | ref=$(expr "z$ref" : 'z+\(.*\)') |
03febf99 JH |
278 | else |
279 | single_force= | |
280 | fi | |
f327dbce MW |
281 | remote_name=$(expr "z$ref" : 'z\([^:]*\):') |
282 | local_name=$(expr "z$ref" : 'z[^:]*:\(.*\)') | |
853a3697 | 283 | |
03febf99 | 284 | rref="$rref$LF$remote_name" |
4447badc | 285 | |
03febf99 JH |
286 | # There are transports that can fetch only one head at a time... |
287 | case "$remote" in | |
38529e28 | 288 | http://* | https://* | ftp://*) |
03febf99 JH |
289 | if [ -n "$GIT_SSL_NO_VERIFY" ]; then |
290 | curl_extra_args="-k" | |
291 | fi | |
093b0688 NH |
292 | max_depth=5 |
293 | depth=0 | |
294 | head="ref: $remote_name" | |
295 | while (expr "z$head" : "zref:" && expr $depth \< $max_depth) >/dev/null | |
296 | do | |
d9bffc08 | 297 | remote_name_quoted=$(@@PERL@@ -e ' |
03febf99 | 298 | my $u = $ARGV[0]; |
093b0688 | 299 | $u =~ s/^ref:\s*//; |
03febf99 JH |
300 | $u =~ s{([^-a-zA-Z0-9/.])}{sprintf"%%%02x",ord($1)}eg; |
301 | print "$u"; | |
093b0688 NH |
302 | ' "$head") |
303 | head=$(curl -nsfL $curl_extra_args "$remote/$remote_name_quoted") | |
304 | depth=$( expr \( $depth + 1 \) ) | |
305 | done | |
f327dbce | 306 | expr "z$head" : "z$_x40\$" >/dev/null || |
093b0688 | 307 | die "Failed to fetch $remote_name from $remote" |
03febf99 JH |
308 | echo >&2 Fetching "$remote_name from $remote" using http |
309 | git-http-fetch -v -a "$head" "$remote/" || exit | |
310 | ;; | |
311 | rsync://*) | |
312 | TMP_HEAD="$GIT_DIR/TMP_HEAD" | |
313 | rsync -L -q "$remote/$remote_name" "$TMP_HEAD" || exit 1 | |
314 | head=$(git-rev-parse --verify TMP_HEAD) | |
315 | rm -f "$TMP_HEAD" | |
316 | test "$rsync_slurped_objects" || { | |
317 | rsync -av --ignore-existing --exclude info \ | |
318 | "$remote/objects/" "$GIT_OBJECT_DIRECTORY/" || exit | |
853a3697 | 319 | |
03febf99 JH |
320 | # Look at objects/info/alternates for rsync -- http will |
321 | # support it natively and git native ones will do it on | |
322 | # the remote end. Not having that file is not a crime. | |
323 | rsync -q "$remote/objects/info/alternates" \ | |
324 | "$GIT_DIR/TMP_ALT" 2>/dev/null || | |
325 | rm -f "$GIT_DIR/TMP_ALT" | |
326 | if test -f "$GIT_DIR/TMP_ALT" | |
327 | then | |
328 | resolve_alternates "$remote" <"$GIT_DIR/TMP_ALT" | | |
329 | while read alt | |
330 | do | |
331 | case "$alt" in 'bad alternate: '*) die "$alt";; esac | |
332 | echo >&2 "Getting alternate: $alt" | |
333 | rsync -av --ignore-existing --exclude info \ | |
334 | "$alt" "$GIT_OBJECT_DIRECTORY/" || exit | |
335 | done | |
336 | rm -f "$GIT_DIR/TMP_ALT" | |
337 | fi | |
338 | rsync_slurped_objects=t | |
339 | } | |
340 | ;; | |
341 | *) | |
342 | # We will do git native transport with just one call later. | |
343 | continue ;; | |
344 | esac | |
f170e4b3 | 345 | |
03febf99 JH |
346 | append_fetch_head "$head" "$remote" \ |
347 | "$remote_name" "$remote_nick" "$local_name" "$not_for_merge" | |
853a3697 | 348 | |
03febf99 JH |
349 | done |
350 | ||
351 | case "$remote" in | |
38529e28 | 352 | http://* | https://* | ftp://* | rsync://* ) |
03febf99 JH |
353 | ;; # we are already done. |
354 | *) | |
355 | ( : subshell because we muck with IFS | |
356 | IFS=" $LF" | |
357 | ( | |
482faa8d | 358 | git-fetch-pack $exec $keep "$remote" $rref || echo failed "$remote" |
03febf99 JH |
359 | ) | |
360 | while read sha1 remote_name | |
361 | do | |
362 | case "$sha1" in | |
363 | failed) | |
364 | echo >&2 "Fetch failure: $remote" | |
365 | exit 1 ;; | |
366 | esac | |
367 | found= | |
368 | single_force= | |
369 | for ref in $refs | |
370 | do | |
371 | case "$ref" in | |
372 | +$remote_name:*) | |
373 | single_force=t | |
374 | not_for_merge= | |
375 | found="$ref" | |
376 | break ;; | |
377 | .+$remote_name:*) | |
378 | single_force=t | |
379 | not_for_merge=t | |
380 | found="$ref" | |
381 | break ;; | |
382 | .$remote_name:*) | |
383 | not_for_merge=t | |
384 | found="$ref" | |
385 | break ;; | |
386 | $remote_name:*) | |
387 | not_for_merge= | |
388 | found="$ref" | |
389 | break ;; | |
390 | esac | |
391 | done | |
f327dbce | 392 | local_name=$(expr "z$found" : 'z[^:]*:\(.*\)') |
03febf99 JH |
393 | append_fetch_head "$sha1" "$remote" \ |
394 | "$remote_name" "$remote_nick" "$local_name" "$not_for_merge" | |
395 | done | |
396 | ) || exit ;; | |
397 | esac | |
398 | ||
399 | } | |
400 | ||
401 | fetch_main "$reflist" | |
402 | ||
403 | # automated tag following | |
404 | case "$no_tags$tags" in | |
405 | '') | |
6dc78e69 JH |
406 | case "$reflist" in |
407 | *:refs/*) | |
408 | # effective only when we are following remote branch | |
409 | # using local tracking branch. | |
410 | taglist=$(IFS=" " && | |
411 | git-ls-remote $upload_pack --tags "$remote" | | |
412 | sed -ne 's|^\([0-9a-f]*\)[ ]\(refs/tags/.*\)^{}$|\1 \2|p' | | |
413 | while read sha1 name | |
414 | do | |
415 | test -f "$GIT_DIR/$name" && continue | |
416 | git-check-ref-format "$name" || { | |
417 | echo >&2 "warning: tag ${name} ignored" | |
418 | continue | |
419 | } | |
420 | git-cat-file -t "$sha1" >/dev/null 2>&1 || continue | |
421 | echo >&2 "Auto-following $name" | |
422 | echo ".${name}:${name}" | |
423 | done) | |
424 | esac | |
03febf99 JH |
425 | case "$taglist" in |
426 | '') ;; | |
427 | ?*) | |
428 | fetch_main "$taglist" ;; | |
429 | esac | |
853a3697 | 430 | esac |
b10ac50f JH |
431 | |
432 | # If the original head was empty (i.e. no "master" yet), or | |
433 | # if we were told not to worry, we do not have to check. | |
434 | case ",$update_head_ok,$orig_head," in | |
435 | *,, | t,* ) | |
436 | ;; | |
437 | *) | |
bf7960eb | 438 | curr_head=$(git-rev-parse --verify HEAD 2>/dev/null) |
b10ac50f JH |
439 | if test "$curr_head" != "$orig_head" |
440 | then | |
55b7835e SP |
441 | git-update-ref \ |
442 | -m "$rloga: Undoing incorrectly fetched HEAD." \ | |
443 | HEAD "$orig_head" | |
b10ac50f JH |
444 | die "Cannot fetch into the current branch." |
445 | fi | |
446 | ;; | |
447 | esac |