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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 | 7 | set_reflog_action "fetch $*" |
514c09fd | 8 | cd_to_toplevel ;# probably unnecessary... |
f9474132 | 9 | |
215a7ad1 | 10 | . git-parse-remote |
853a3697 JH |
11 | _x40='[0-9a-f][0-9a-f][0-9a-f][0-9a-f][0-9a-f]' |
12 | _x40="$_x40$_x40$_x40$_x40$_x40$_x40$_x40$_x40" | |
13 | ||
221e743c JH |
14 | LF=' |
15 | ' | |
16 | IFS="$LF" | |
17 | ||
03febf99 | 18 | no_tags= |
ed1aadf1 | 19 | tags= |
853a3697 | 20 | append= |
ae2da406 | 21 | force= |
583122cd | 22 | verbose= |
b10ac50f | 23 | update_head_ok= |
2c620a1a | 24 | exec= |
920ccbfc | 25 | keep= |
f53514bc | 26 | shallow_depth= |
83a5ad61 JS |
27 | no_progress= |
28 | test -t 1 || no_progress=--no-progress | |
a858c006 | 29 | quiet= |
822f7c73 | 30 | while test $# != 0 |
ae2da406 JH |
31 | do |
32 | case "$1" in | |
33 | -a|--a|--ap|--app|--appe|--appen|--append) | |
34 | append=t | |
ae2da406 | 35 | ;; |
2796a9de JH |
36 | --upl|--uplo|--uploa|--upload|--upload-|--upload-p|\ |
37 | --upload-pa|--upload-pac|--upload-pack) | |
2c620a1a | 38 | shift |
ae1dffcb JH |
39 | exec="--upload-pack=$1" |
40 | ;; | |
41 | --upl=*|--uplo=*|--uploa=*|--upload=*|\ | |
42 | --upload-=*|--upload-p=*|--upload-pa=*|--upload-pac=*|--upload-pack=*) | |
4a91a1f3 | 43 | exec=--upload-pack=$(expr "z$1" : 'z-[^=]*=\(.*\)') |
ae1dffcb | 44 | shift |
2c620a1a | 45 | ;; |
ae2da406 JH |
46 | -f|--f|--fo|--for|--forc|--force) |
47 | force=t | |
b10ac50f | 48 | ;; |
ed1aadf1 LT |
49 | -t|--t|--ta|--tag|--tags) |
50 | tags=t | |
51 | ;; | |
03febf99 JH |
52 | -n|--n|--no|--no-|--no-t|--no-ta|--no-tag|--no-tags) |
53 | no_tags=t | |
54 | ;; | |
b10ac50f JH |
55 | -u|--u|--up|--upd|--upda|--updat|--update|--update-|--update-h|\ |
56 | --update-he|--update-hea|--update-head|--update-head-|\ | |
57 | --update-head-o|--update-head-ok) | |
58 | update_head_ok=t | |
ae2da406 | 59 | ;; |
a858c006 JH |
60 | -q|--q|--qu|--qui|--quie|--quiet) |
61 | quiet=--quiet | |
62 | ;; | |
583122cd | 63 | -v|--verbose) |
684f6742 | 64 | verbose="$verbose"Yes |
583122cd | 65 | ;; |
0f76f526 | 66 | -k|--k|--ke|--kee|--keep) |
576162a4 | 67 | keep='-k -k' |
0f76f526 | 68 | ;; |
f53514bc JS |
69 | --depth=*) |
70 | shallow_depth="--depth=`expr "z$1" : 'z-[^=]*=\(.*\)'`" | |
71 | ;; | |
72 | --depth) | |
73 | shift | |
74 | shallow_depth="--depth=$1" | |
75 | ;; | |
87358b7a FK |
76 | -*) |
77 | usage | |
78 | ;; | |
ae2da406 JH |
79 | *) |
80 | break | |
81 | ;; | |
82 | esac | |
b10ac50f | 83 | shift |
ae2da406 JH |
84 | done |
85 | ||
853a3697 JH |
86 | case "$#" in |
87 | 0) | |
648ad18f SB |
88 | origin=$(get_default_remote) |
89 | test -n "$(get_remote_url ${origin})" || | |
90 | die "Where do you want to fetch from today?" | |
91 | set x $origin ; shift ;; | |
853a3697 | 92 | esac |
ae2da406 | 93 | |
5dee29ac UKK |
94 | if test -z "$exec" |
95 | then | |
96 | # No command line override and we have configuration for the remote. | |
97 | exec="--upload-pack=$(get_uploadpack $1)" | |
98 | fi | |
99 | ||
853a3697 JH |
100 | remote_nick="$1" |
101 | remote=$(get_remote_url "$@") | |
102 | refs= | |
103 | rref= | |
104 | rsync_slurped_objects= | |
105 | ||
106 | if test "" = "$append" | |
107 | then | |
df34297a | 108 | : >"$GIT_DIR/FETCH_HEAD" |
853a3697 JH |
109 | fi |
110 | ||
28b8e61f | 111 | # Global that is reused later |
ae1dffcb | 112 | ls_remote_result=$(git ls-remote $exec "$remote") || |
b3d98993 | 113 | die "Cannot get the repository state from $remote" |
28b8e61f | 114 | |
853a3697 | 115 | append_fetch_head () { |
d4289fff | 116 | flags= |
08727ea8 SB |
117 | test -n "$verbose" && flags="$flags$LF-v" |
118 | test -n "$force$single_force" && flags="$flags$LF-f" | |
d4289fff | 119 | GIT_REFLOG_ACTION="$GIT_REFLOG_ACTION" \ |
5be60078 | 120 | git fetch--tool $flags append-fetch-head "$@" |
853a3697 JH |
121 | } |
122 | ||
4b441f47 JH |
123 | # updating the current HEAD with git-fetch in a bare |
124 | # repository is always fine. | |
125 | if test -z "$update_head_ok" && test $(is_bare_repository) = false | |
126 | then | |
5be60078 | 127 | orig_head=$(git rev-parse --verify HEAD 2>/dev/null) |
4b441f47 | 128 | fi |
b10ac50f | 129 | |
944163a4 | 130 | # Allow --tags/--notags from remote.$1.tagopt |
24424fc2 JH |
131 | case "$tags$no_tags" in |
132 | '') | |
5be60078 | 133 | case "$(git config --get "remote.$1.tagopt")" in |
944163a4 ST |
134 | --tags) |
135 | tags=t ;; | |
24424fc2 JH |
136 | --no-tags) |
137 | no_tags=t ;; | |
138 | esac | |
139 | esac | |
140 | ||
ed1aadf1 LT |
141 | # If --tags (and later --heads or --all) is specified, then we are |
142 | # not talking about defaults stored in Pull: line of remotes or | |
143 | # branches file, and just fetch those and refspecs explicitly given. | |
144 | # Otherwise we do what we always did. | |
145 | ||
146 | reflist=$(get_remote_refs_for_fetch "$@") | |
147 | if test "$tags" | |
148 | then | |
ed9f7c95 | 149 | taglist=`IFS=' ' && |
28b8e61f | 150 | echo "$ls_remote_result" | |
5be60078 | 151 | git show-ref --exclude-existing=refs/tags/ | |
81214e4d JH |
152 | while read sha1 name |
153 | do | |
85b1f988 | 154 | echo ".${name}:${name}" |
57a39690 | 155 | done` || exit |
ed1aadf1 LT |
156 | if test "$#" -gt 1 |
157 | then | |
158 | # remote URL plus explicit refspecs; we need to merge them. | |
221e743c | 159 | reflist="$reflist$LF$taglist" |
ed1aadf1 LT |
160 | else |
161 | # No explicit refspecs; fetch tags only. | |
162 | reflist=$taglist | |
163 | fi | |
164 | fi | |
165 | ||
9debc324 | 166 | fetch_all_at_once () { |
d1e0ef6c | 167 | |
5be60078 | 168 | eval=$(echo "$1" | git fetch--tool parse-reflist "-") |
d1e0ef6c | 169 | eval "$eval" |
b74e8cbd JH |
170 | |
171 | ( : subshell because we muck with IFS | |
172 | IFS=" $LF" | |
173 | ( | |
9debc324 | 174 | if test "$remote" = . ; then |
5be60078 | 175 | git show-ref $rref || echo failed "$remote" |
9debc324 | 176 | elif test -f "$remote" ; then |
c1f5086e JH |
177 | test -n "$shallow_depth" && |
178 | die "shallow clone with bundle is not supported" | |
5be60078 | 179 | git bundle unbundle "$remote" $rref || |
c1f5086e JH |
180 | echo failed "$remote" |
181 | else | |
e3c6f240 JH |
182 | if test -d "$remote" && |
183 | ||
184 | # The remote might be our alternate. With | |
185 | # this optimization we will bypass fetch-pack | |
186 | # altogether, which means we cannot be doing | |
187 | # the shallow stuff at all. | |
188 | test ! -f "$GIT_DIR/shallow" && | |
189 | test -z "$shallow_depth" && | |
190 | ||
191 | # See if all of what we are going to fetch are | |
192 | # connected to our repository's tips, in which | |
193 | # case we do not have to do any fetch. | |
afb5f39e | 194 | theirs=$(echo "$ls_remote_result" | \ |
5be60078 | 195 | git fetch--tool -s pick-rref "$rref" "-") && |
e3c6f240 JH |
196 | |
197 | # This will barf when $theirs reach an object that | |
198 | # we do not have in our repository. Otherwise, | |
199 | # we already have everything the fetch would bring in. | |
5be60078 | 200 | git rev-list --objects $theirs --not --all \ |
e3c6f240 JH |
201 | >/dev/null 2>/dev/null |
202 | then | |
afb5f39e | 203 | echo "$ls_remote_result" | \ |
5be60078 | 204 | git fetch--tool pick-rref "$rref" "-" |
e3c6f240 | 205 | else |
684f6742 AR |
206 | flags= |
207 | case $verbose in | |
208 | YesYes*) | |
209 | flags="-v" | |
210 | ;; | |
211 | esac | |
e3c6f240 | 212 | git-fetch-pack --thin $exec $keep $shallow_depth \ |
684f6742 | 213 | $quiet $no_progress $flags "$remote" $rref || |
e3c6f240 JH |
214 | echo failed "$remote" |
215 | fi | |
c1f5086e | 216 | fi |
b74e8cbd JH |
217 | ) | |
218 | ( | |
fbe2687e JH |
219 | flags= |
220 | test -n "$verbose" && flags="$flags -v" | |
221 | test -n "$force" && flags="$flags -f" | |
222 | GIT_REFLOG_ACTION="$GIT_REFLOG_ACTION" \ | |
5be60078 | 223 | git fetch--tool $flags native-store \ |
fee7c2c7 | 224 | "$remote" "$remote_nick" "$refs" |
b74e8cbd JH |
225 | ) |
226 | ) || exit | |
227 | ||
228 | } | |
229 | ||
9debc324 | 230 | fetch_per_ref () { |
03febf99 JH |
231 | reflist="$1" |
232 | refs= | |
4839bd8a | 233 | rref= |
f170e4b3 | 234 | |
03febf99 JH |
235 | for ref in $reflist |
236 | do | |
237 | refs="$refs$LF$ref" | |
f170e4b3 | 238 | |
03febf99 JH |
239 | # These are relative path from $GIT_DIR, typically starting at refs/ |
240 | # but may be HEAD | |
f327dbce | 241 | if expr "z$ref" : 'z\.' >/dev/null |
03febf99 JH |
242 | then |
243 | not_for_merge=t | |
f327dbce | 244 | ref=$(expr "z$ref" : 'z\.\(.*\)') |
03febf99 JH |
245 | else |
246 | not_for_merge= | |
247 | fi | |
dfdcb558 | 248 | if expr "z$ref" : 'z+' >/dev/null |
03febf99 JH |
249 | then |
250 | single_force=t | |
dfdcb558 | 251 | ref=$(expr "z$ref" : 'z+\(.*\)') |
03febf99 JH |
252 | else |
253 | single_force= | |
254 | fi | |
f327dbce MW |
255 | remote_name=$(expr "z$ref" : 'z\([^:]*\):') |
256 | local_name=$(expr "z$ref" : 'z[^:]*:\(.*\)') | |
853a3697 | 257 | |
03febf99 | 258 | rref="$rref$LF$remote_name" |
4447badc | 259 | |
03febf99 JH |
260 | # There are transports that can fetch only one head at a time... |
261 | case "$remote" in | |
38529e28 | 262 | http://* | https://* | ftp://*) |
f53514bc JS |
263 | test -n "$shallow_depth" && |
264 | die "shallow clone with http not supported" | |
ddaf7314 | 265 | proto=`expr "$remote" : '\([^:]*\):'` |
03febf99 JH |
266 | if [ -n "$GIT_SSL_NO_VERIFY" ]; then |
267 | curl_extra_args="-k" | |
268 | fi | |
3ea099d4 | 269 | if [ -n "$GIT_CURL_FTP_NO_EPSV" -o \ |
5be60078 | 270 | "`git config --bool http.noEPSV`" = true ]; then |
3ea099d4 SK |
271 | noepsv_opt="--disable-epsv" |
272 | fi | |
2986c022 JH |
273 | |
274 | # Find $remote_name from ls-remote output. | |
afb5f39e | 275 | head=$(echo "$ls_remote_result" | \ |
5be60078 | 276 | git fetch--tool -s pick-rref "$remote_name" "-") |
f327dbce | 277 | expr "z$head" : "z$_x40\$" >/dev/null || |
2986c022 | 278 | die "No such ref $remote_name at $remote" |
ddaf7314 | 279 | echo >&2 "Fetching $remote_name from $remote using $proto" |
a858c006 | 280 | case "$quiet" in '') v=-v ;; *) v= ;; esac |
27be481f | 281 | git-http-fetch $v -a "$head" "$remote" || exit |
03febf99 JH |
282 | ;; |
283 | rsync://*) | |
f53514bc JS |
284 | test -n "$shallow_depth" && |
285 | die "shallow clone with rsync not supported" | |
03febf99 JH |
286 | TMP_HEAD="$GIT_DIR/TMP_HEAD" |
287 | rsync -L -q "$remote/$remote_name" "$TMP_HEAD" || exit 1 | |
5be60078 | 288 | head=$(git rev-parse --verify TMP_HEAD) |
03febf99 | 289 | rm -f "$TMP_HEAD" |
a858c006 | 290 | case "$quiet" in '') v=-v ;; *) v= ;; esac |
03febf99 | 291 | test "$rsync_slurped_objects" || { |
a858c006 | 292 | rsync -a $v --ignore-existing --exclude info \ |
03febf99 | 293 | "$remote/objects/" "$GIT_OBJECT_DIRECTORY/" || exit |
853a3697 | 294 | |
03febf99 JH |
295 | # Look at objects/info/alternates for rsync -- http will |
296 | # support it natively and git native ones will do it on | |
297 | # the remote end. Not having that file is not a crime. | |
298 | rsync -q "$remote/objects/info/alternates" \ | |
299 | "$GIT_DIR/TMP_ALT" 2>/dev/null || | |
300 | rm -f "$GIT_DIR/TMP_ALT" | |
301 | if test -f "$GIT_DIR/TMP_ALT" | |
302 | then | |
303 | resolve_alternates "$remote" <"$GIT_DIR/TMP_ALT" | | |
304 | while read alt | |
305 | do | |
306 | case "$alt" in 'bad alternate: '*) die "$alt";; esac | |
307 | echo >&2 "Getting alternate: $alt" | |
308 | rsync -av --ignore-existing --exclude info \ | |
309 | "$alt" "$GIT_OBJECT_DIRECTORY/" || exit | |
310 | done | |
311 | rm -f "$GIT_DIR/TMP_ALT" | |
312 | fi | |
313 | rsync_slurped_objects=t | |
314 | } | |
315 | ;; | |
03febf99 | 316 | esac |
f170e4b3 | 317 | |
03febf99 | 318 | append_fetch_head "$head" "$remote" \ |
f64d7fd2 | 319 | "$remote_name" "$remote_nick" "$local_name" "$not_for_merge" || exit |
853a3697 | 320 | |
03febf99 JH |
321 | done |
322 | ||
b74e8cbd | 323 | } |
03febf99 | 324 | |
b74e8cbd JH |
325 | fetch_main () { |
326 | case "$remote" in | |
327 | http://* | https://* | ftp://* | rsync://* ) | |
9debc324 | 328 | fetch_per_ref "$@" |
b74e8cbd JH |
329 | ;; |
330 | *) | |
9debc324 | 331 | fetch_all_at_once "$@" |
b74e8cbd JH |
332 | ;; |
333 | esac | |
03febf99 JH |
334 | } |
335 | ||
f64d7fd2 | 336 | fetch_main "$reflist" || exit |
03febf99 JH |
337 | |
338 | # automated tag following | |
339 | case "$no_tags$tags" in | |
340 | '') | |
6dc78e69 JH |
341 | case "$reflist" in |
342 | *:refs/*) | |
343 | # effective only when we are following remote branch | |
344 | # using local tracking branch. | |
ed9f7c95 | 345 | taglist=$(IFS=' ' && |
28b8e61f | 346 | echo "$ls_remote_result" | |
5be60078 | 347 | git show-ref --exclude-existing=refs/tags/ | |
6dc78e69 JH |
348 | while read sha1 name |
349 | do | |
5be60078 | 350 | git cat-file -t "$sha1" >/dev/null 2>&1 || continue |
6dc78e69 JH |
351 | echo >&2 "Auto-following $name" |
352 | echo ".${name}:${name}" | |
353 | done) | |
354 | esac | |
03febf99 JH |
355 | case "$taglist" in |
356 | '') ;; | |
357 | ?*) | |
d1586315 AJ |
358 | # do not deepen a shallow tree when following tags |
359 | shallow_depth= | |
f64d7fd2 | 360 | fetch_main "$taglist" || exit ;; |
03febf99 | 361 | esac |
853a3697 | 362 | esac |
b10ac50f JH |
363 | |
364 | # If the original head was empty (i.e. no "master" yet), or | |
365 | # if we were told not to worry, we do not have to check. | |
9861718b JH |
366 | case "$orig_head" in |
367 | '') | |
b10ac50f | 368 | ;; |
9861718b | 369 | ?*) |
5be60078 | 370 | curr_head=$(git rev-parse --verify HEAD 2>/dev/null) |
b10ac50f JH |
371 | if test "$curr_head" != "$orig_head" |
372 | then | |
5be60078 | 373 | git update-ref \ |
f9474132 | 374 | -m "$GIT_REFLOG_ACTION: Undoing incorrectly fetched HEAD." \ |
55b7835e | 375 | HEAD "$orig_head" |
b10ac50f JH |
376 | die "Cannot fetch into the current branch." |
377 | fi | |
378 | ;; | |
379 | esac |