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Commit | Line | Data |
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3f571e0b | 1 | #!/bin/sh |
e95ab1ed JH |
2 | # |
3 | # Copyright (c) 2005, Linus Torvalds | |
4 | # Copyright (c) 2005, Junio C Hamano | |
a6080a0a | 5 | # |
e95ab1ed JH |
6 | # Clone a repository into a different directory that does not yet exist. |
7 | ||
365527ad JH |
8 | # See git-sh-setup why. |
9 | unset CDPATH | |
10 | ||
87b787ac DL |
11 | die() { |
12 | echo >&2 "$@" | |
e95ab1ed JH |
13 | exit 1 |
14 | } | |
15 | ||
87b787ac | 16 | usage() { |
37818d7d | 17 | die "Usage: $0 [--template=<template_directory>] [--reference <reference-repo>] [--bare] [-l [-s]] [-q] [-u <upload-pack>] [--origin <name>] [--depth <n>] [-n] <repo> [<dir>]" |
87b787ac DL |
18 | } |
19 | ||
ba375acf | 20 | get_repo_base() { |
c2f599e0 JH |
21 | ( |
22 | cd "`/bin/pwd`" && | |
defe13a2 | 23 | cd "$1" || cd "$1.git" && |
c2f599e0 | 24 | { |
223fa327 | 25 | cd .git |
c2f599e0 JH |
26 | pwd |
27 | } | |
223fa327 | 28 | ) 2>/dev/null |
ba375acf LT |
29 | } |
30 | ||
1c1f79a1 AB |
31 | if [ -n "$GIT_SSL_NO_VERIFY" -o \ |
32 | "`git config --bool http.sslVerify`" = false ]; then | |
0516de30 JH |
33 | curl_extra_args="-k" |
34 | fi | |
35 | ||
36 | http_fetch () { | |
37 | # $1 = Remote, $2 = Local | |
f28dd477 GP |
38 | curl -nsfL $curl_extra_args "$1" >"$2" || |
39 | case $? in | |
40 | 126|127) exit ;; | |
41 | *) return $? ;; | |
42 | esac | |
0516de30 JH |
43 | } |
44 | ||
45 | clone_dumb_http () { | |
46 | # $1 - remote, $2 - local | |
47 | cd "$2" && | |
5e3a620c | 48 | clone_tmp="$GIT_DIR/clone-tmp" && |
0516de30 | 49 | mkdir -p "$clone_tmp" || exit 1 |
3ea099d4 | 50 | if [ -n "$GIT_CURL_FTP_NO_EPSV" -o \ |
5be60078 | 51 | "`git config --bool http.noEPSV`" = true ]; then |
3ea099d4 SK |
52 | curl_extra_args="${curl_extra_args} --disable-epsv" |
53 | fi | |
87b787ac DL |
54 | http_fetch "$1/info/refs" "$clone_tmp/refs" || |
55 | die "Cannot get remote repository information. | |
0516de30 | 56 | Perhaps git-update-server-info needs to be run there?" |
7e8c8255 | 57 | test "z$quiet" = z && v=-v || v= |
0516de30 JH |
58 | while read sha1 refname |
59 | do | |
f327dbce | 60 | name=`expr "z$refname" : 'zrefs/\(.*\)'` && |
cdb39508 | 61 | case "$name" in |
dfeff66e | 62 | *^*) continue;; |
cdb39508 | 63 | esac |
983d2ee2 JH |
64 | case "$bare,$name" in |
65 | yes,* | ,heads/* | ,tags/*) ;; | |
66 | *) continue ;; | |
67 | esac | |
dfeff66e | 68 | if test -n "$use_separate_remote" && |
f327dbce | 69 | branch_name=`expr "z$name" : 'zheads/\(.*\)'` |
dfeff66e | 70 | then |
5ceb05f8 | 71 | tname="remotes/$origin/$branch_name" |
dfeff66e JH |
72 | else |
73 | tname=$name | |
74 | fi | |
928c210a | 75 | git-http-fetch $v -a -w "$tname" "$sha1" "$1" || exit 1 |
0516de30 JH |
76 | done <"$clone_tmp/refs" |
77 | rm -fr "$clone_tmp" | |
c72112e6 JH |
78 | http_fetch "$1/HEAD" "$GIT_DIR/REMOTE_HEAD" || |
79 | rm -f "$GIT_DIR/REMOTE_HEAD" | |
59c93929 SV |
80 | if test -f "$GIT_DIR/REMOTE_HEAD"; then |
81 | head_sha1=`cat "$GIT_DIR/REMOTE_HEAD"` | |
82 | case "$head_sha1" in | |
83 | 'ref: refs/'*) | |
84 | ;; | |
85 | *) | |
86 | git-http-fetch $v -a "$head_sha1" "$1" || | |
87 | rm -f "$GIT_DIR/REMOTE_HEAD" | |
88 | ;; | |
89 | esac | |
90 | fi | |
dfeff66e JH |
91 | } |
92 | ||
167a4a33 | 93 | quiet= |
ef5b4eab | 94 | local=no |
3d5c418f | 95 | use_local_hardlink=yes |
aae4f42c | 96 | local_shared=no |
a57c8bac | 97 | unset template |
036a72d8 | 98 | no_checkout= |
6ec311da | 99 | upload_pack= |
87e80c4b | 100 | bare= |
dfeff66e JH |
101 | reference= |
102 | origin= | |
e6489a1b | 103 | origin_override= |
71821351 | 104 | use_separate_remote=t |
016e6ccb | 105 | depth= |
83a5ad61 | 106 | no_progress= |
23d53358 | 107 | local_explicitly_asked_for= |
83a5ad61 | 108 | test -t 1 || no_progress=--no-progress |
e95ab1ed JH |
109 | while |
110 | case "$#,$1" in | |
111 | 0,*) break ;; | |
8a1a120c JH |
112 | *,-n|*,--no|*,--no-|*,--no-c|*,--no-ch|*,--no-che|*,--no-chec|\ |
113 | *,--no-check|*,--no-checko|*,--no-checkou|*,--no-checkout) | |
114 | no_checkout=yes ;; | |
87e80c4b JH |
115 | *,--na|*,--nak|*,--nake|*,--naked|\ |
116 | *,-b|*,--b|*,--ba|*,--bar|*,--bare) bare=yes ;; | |
3d5c418f | 117 | *,-l|*,--l|*,--lo|*,--loc|*,--loca|*,--local) |
23d53358 | 118 | local_explicitly_asked_for=yes |
3d5c418f JH |
119 | use_local_hardlink=yes ;; |
120 | *,--no-h|*,--no-ha|*,--no-har|*,--no-hard|*,--no-hardl|\ | |
121 | *,--no-hardli|*,--no-hardlin|*,--no-hardlink|*,--no-hardlinks) | |
122 | use_local_hardlink=no ;; | |
a6080a0a | 123 | *,-s|*,--s|*,--sh|*,--sha|*,--shar|*,--share|*,--shared) |
3d5c418f | 124 | local_shared=yes; ;; |
a57c8bac JH |
125 | 1,--template) usage ;; |
126 | *,--template) | |
127 | shift; template="--template=$1" ;; | |
128 | *,--template=*) | |
129 | template="$1" ;; | |
167a4a33 | 130 | *,-q|*,--quiet) quiet=-q ;; |
63085fab | 131 | *,--use-separate-remote) ;; |
b360cca0 | 132 | *,--no-separate-remote) |
63085fab | 133 | die "clones are always made with separate-remote layout" ;; |
dfeff66e JH |
134 | 1,--reference) usage ;; |
135 | *,--reference) | |
136 | shift; reference="$1" ;; | |
137 | *,--reference=*) | |
8096fae7 | 138 | reference=`expr "z$1" : 'z--reference=\(.*\)'` ;; |
98a4fef3 | 139 | *,-o|*,--or|*,--ori|*,--orig|*,--origi|*,--origin) |
47874d6d | 140 | case "$2" in |
98a4fef3 YS |
141 | '') |
142 | usage ;; | |
47874d6d | 143 | */*) |
87b787ac | 144 | die "'$2' is not suitable for an origin name" |
47874d6d | 145 | esac |
5be60078 | 146 | git check-ref-format "heads/$2" || |
87b787ac DL |
147 | die "'$2' is not suitable for a branch name" |
148 | test -z "$origin_override" || | |
149 | die "Do not give more than one --origin options." | |
e6489a1b | 150 | origin_override=yes |
e6c310fd JS |
151 | origin="$2"; shift |
152 | ;; | |
1cadb5a2 | 153 | 1,-u|1,--upload-pack) usage ;; |
6ec311da JH |
154 | *,-u|*,--upload-pack) |
155 | shift | |
ae1dffcb JH |
156 | upload_pack="--upload-pack=$1" ;; |
157 | *,--upload-pack=*) | |
4a91a1f3 | 158 | upload_pack=--upload-pack=$(expr "z$1" : 'z-[^=]*=\(.*\)') ;; |
016e6ccb JS |
159 | 1,--depth) usage;; |
160 | *,--depth) | |
161 | shift | |
162 | depth="--depth=$1";; | |
e95ab1ed JH |
163 | *,-*) usage ;; |
164 | *) break ;; | |
165 | esac | |
166 | do | |
167 | shift | |
168 | done | |
169 | ||
ef5b4eab | 170 | repo="$1" |
87b787ac DL |
171 | test -n "$repo" || |
172 | die 'you must specify a repository to clone.' | |
ef5b4eab | 173 | |
b360cca0 | 174 | # --bare implies --no-checkout and --no-separate-remote |
e6489a1b JH |
175 | if test yes = "$bare" |
176 | then | |
177 | if test yes = "$origin_override" | |
178 | then | |
87b787ac | 179 | die '--bare and --origin $origin options are incompatible.' |
e6489a1b JH |
180 | fi |
181 | no_checkout=yes | |
71821351 | 182 | use_separate_remote= |
e6489a1b | 183 | fi |
8a1a120c | 184 | |
47874d6d | 185 | if test -z "$origin" |
dfeff66e | 186 | then |
47874d6d | 187 | origin=origin |
dfeff66e JH |
188 | fi |
189 | ||
ba375acf LT |
190 | # Turn the source into an absolute path if |
191 | # it is local | |
ba375acf LT |
192 | if base=$(get_repo_base "$repo"); then |
193 | repo="$base" | |
194 | local=yes | |
195 | fi | |
196 | ||
3f571e0b | 197 | dir="$2" |
0879aa28 | 198 | # Try using "humanish" part of source repo if user didn't specify one |
e7555785 | 199 | [ -z "$dir" ] && dir=$(echo "$repo" | sed -e 's|/$||' -e 's|:*/*\.git$||' -e 's|.*[/:]||g') |
87b787ac | 200 | [ -e "$dir" ] && die "destination directory '$dir' already exists." |
20ccef49 ML |
201 | [ yes = "$bare" ] && unset GIT_WORK_TREE |
202 | [ -n "$GIT_WORK_TREE" ] && [ -e "$GIT_WORK_TREE" ] && | |
203 | die "working tree '$GIT_WORK_TREE' already exists." | |
68ad8910 | 204 | D= |
20ccef49 | 205 | W= |
68ad8910 ML |
206 | cleanup() { |
207 | err=$? | |
208 | test -z "$D" && rm -rf "$dir" | |
20ccef49 | 209 | test -z "$W" && test -n "$GIT_WORK_TREE" && rm -rf "$GIT_WORK_TREE" |
68ad8910 ML |
210 | cd .. |
211 | test -n "$D" && rm -rf "$D" | |
20ccef49 | 212 | test -n "$W" && rm -rf "$W" |
68ad8910 ML |
213 | exit $err |
214 | } | |
215 | trap cleanup 0 | |
216 | mkdir -p "$dir" && D=$(cd "$dir" && pwd) || usage | |
20ccef49 ML |
217 | test -n "$GIT_WORK_TREE" && mkdir -p "$GIT_WORK_TREE" && |
218 | W=$(cd "$GIT_WORK_TREE" && pwd) && export GIT_WORK_TREE="$W" | |
219 | if test yes = "$bare" || test -n "$GIT_WORK_TREE"; then | |
220 | GIT_DIR="$D" | |
221 | else | |
222 | GIT_DIR="$D/.git" | |
223 | fi && | |
68ad8910 | 224 | export GIT_DIR && |
312efe9b JH |
225 | GIT_CONFIG="$GIT_DIR/config" git-init $quiet ${template+"$template"} || usage |
226 | ||
227 | if test -n "$bare" | |
228 | then | |
229 | GIT_CONFIG="$GIT_DIR/config" git config core.bare true | |
230 | fi | |
e95ab1ed | 231 | |
dfeff66e JH |
232 | if test -n "$reference" |
233 | then | |
099c7837 | 234 | ref_git= |
dfeff66e JH |
235 | if test -d "$reference" |
236 | then | |
237 | if test -d "$reference/.git/objects" | |
238 | then | |
099c7837 JH |
239 | ref_git="$reference/.git" |
240 | elif test -d "$reference/objects" | |
241 | then | |
242 | ref_git="$reference" | |
dfeff66e | 243 | fi |
099c7837 JH |
244 | fi |
245 | if test -n "$ref_git" | |
246 | then | |
247 | ref_git=$(cd "$ref_git" && pwd) | |
248 | echo "$ref_git/objects" >"$GIT_DIR/objects/info/alternates" | |
249 | ( | |
250 | GIT_DIR="$ref_git" git for-each-ref \ | |
251 | --format='%(objectname) %(*objectname)' | |
252 | ) | | |
253 | while read a b | |
254 | do | |
255 | test -z "$a" || | |
256 | git update-ref "refs/reference-tmp/$a" "$a" | |
257 | test -z "$b" || | |
258 | git update-ref "refs/reference-tmp/$b" "$b" | |
259 | done | |
dfeff66e | 260 | else |
87b787ac | 261 | die "reference repository '$reference' is not a local directory." |
dfeff66e JH |
262 | fi |
263 | fi | |
264 | ||
265 | rm -f "$GIT_DIR/CLONE_HEAD" | |
266 | ||
e95ab1ed | 267 | # We do local magic only when the user tells us to. |
3d5c418f JH |
268 | case "$local" in |
269 | yes) | |
87b787ac | 270 | ( cd "$repo/objects" ) || |
3d5c418f | 271 | die "cannot chdir to local '$repo/objects'." |
e95ab1ed | 272 | |
3d5c418f JH |
273 | if test "$local_shared" = yes |
274 | then | |
275 | mkdir -p "$GIT_DIR/objects/info" | |
276 | echo "$repo/objects" >>"$GIT_DIR/objects/info/alternates" | |
277 | else | |
278 | l= && | |
279 | if test "$use_local_hardlink" = yes | |
280 | then | |
281 | # See if we can hardlink and drop "l" if not. | |
282 | sample_file=$(cd "$repo" && \ | |
283 | find objects -type f -print | sed -e 1q) | |
284 | # objects directory should not be empty because | |
285 | # we are cloning! | |
286 | test -f "$repo/$sample_file" || exit | |
287 | if ln "$repo/$sample_file" "$GIT_DIR/objects/sample" 2>/dev/null | |
288 | then | |
289 | rm -f "$GIT_DIR/objects/sample" | |
290 | l=l | |
23d53358 JH |
291 | elif test -n "$local_explicitly_asked_for" |
292 | then | |
3d5c418f JH |
293 | echo >&2 "Warning: -l asked but cannot hardlink to $repo" |
294 | fi | |
295 | fi && | |
296 | cd "$repo" && | |
297 | find objects -depth -print | cpio -pumd$l "$GIT_DIR/" || exit 1 | |
298 | fi | |
57a39690 | 299 | git-ls-remote "$repo" >"$GIT_DIR/CLONE_HEAD" || exit 1 |
7558ef89 LT |
300 | ;; |
301 | *) | |
1cadb5a2 JH |
302 | case "$repo" in |
303 | rsync://*) | |
016e6ccb JS |
304 | case "$depth" in |
305 | "") ;; | |
306 | *) die "shallow over rsync not supported" ;; | |
307 | esac | |
4447badc | 308 | rsync $quiet -av --ignore-existing \ |
dfeff66e JH |
309 | --exclude info "$repo/objects/" "$GIT_DIR/objects/" || |
310 | exit | |
4447badc JH |
311 | # Look at objects/info/alternates for rsync -- http will |
312 | # support it natively and git native ones will do it on the | |
313 | # remote end. Not having that file is not a crime. | |
89d844d0 | 314 | rsync -q "$repo/objects/info/alternates" \ |
8a1a120c JH |
315 | "$GIT_DIR/TMP_ALT" 2>/dev/null || |
316 | rm -f "$GIT_DIR/TMP_ALT" | |
317 | if test -f "$GIT_DIR/TMP_ALT" | |
4447badc | 318 | then |
0e9ab02d | 319 | ( cd "$D" && |
4447badc | 320 | . git-parse-remote && |
8a1a120c | 321 | resolve_alternates "$repo" <"$GIT_DIR/TMP_ALT" ) | |
4447badc JH |
322 | while read alt |
323 | do | |
324 | case "$alt" in 'bad alternate: '*) die "$alt";; esac | |
325 | case "$quiet" in | |
326 | '') echo >&2 "Getting alternate: $alt" ;; | |
327 | esac | |
328 | rsync $quiet -av --ignore-existing \ | |
8a1a120c | 329 | --exclude info "$alt" "$GIT_DIR/objects" || exit |
4447badc | 330 | done |
8a1a120c | 331 | rm -f "$GIT_DIR/TMP_ALT" |
4447badc | 332 | fi |
57a39690 | 333 | git-ls-remote "$repo" >"$GIT_DIR/CLONE_HEAD" || exit 1 |
1cadb5a2 | 334 | ;; |
38529e28 | 335 | https://*|http://*|ftp://*) |
016e6ccb JS |
336 | case "$depth" in |
337 | "") ;; | |
338 | *) die "shallow over http or ftp not supported" ;; | |
339 | esac | |
6c5c62f3 FP |
340 | if test -z "@@NO_CURL@@" |
341 | then | |
342 | clone_dumb_http "$repo" "$D" | |
343 | else | |
87b787ac | 344 | die "http transport not supported, rebuild Git with curl support" |
6c5c62f3 | 345 | fi |
1cadb5a2 JH |
346 | ;; |
347 | *) | |
ced78b39 | 348 | case "$upload_pack" in |
83a5ad61 JS |
349 | '') git-fetch-pack --all -k $quiet $depth $no_progress "$repo";; |
350 | *) git-fetch-pack --all -k $quiet "$upload_pack" $depth $no_progress "$repo" ;; | |
87b787ac DL |
351 | esac >"$GIT_DIR/CLONE_HEAD" || |
352 | die "fetch-pack from '$repo' failed." | |
1cadb5a2 | 353 | ;; |
6ec311da | 354 | esac |
7558ef89 LT |
355 | ;; |
356 | esac | |
dfeff66e JH |
357 | test -d "$GIT_DIR/refs/reference-tmp" && rm -fr "$GIT_DIR/refs/reference-tmp" |
358 | ||
359 | if test -f "$GIT_DIR/CLONE_HEAD" | |
360 | then | |
c72112e6 | 361 | # Read git-fetch-pack -k output and store the remote branches. |
def2747d SS |
362 | if [ -n "$use_separate_remote" ] |
363 | then | |
364 | branch_top="remotes/$origin" | |
365 | else | |
366 | branch_top="heads" | |
367 | fi | |
368 | tag_top="tags" | |
369 | while read sha1 name | |
370 | do | |
371 | case "$name" in | |
372 | *'^{}') | |
373 | continue ;; | |
374 | HEAD) | |
375 | destname="REMOTE_HEAD" ;; | |
376 | refs/heads/*) | |
377 | destname="refs/$branch_top/${name#refs/heads/}" ;; | |
378 | refs/tags/*) | |
379 | destname="refs/$tag_top/${name#refs/tags/}" ;; | |
380 | *) | |
381 | continue ;; | |
382 | esac | |
5be60078 | 383 | git update-ref -m "clone: from $repo" "$destname" "$sha1" "" |
def2747d | 384 | done < "$GIT_DIR/CLONE_HEAD" |
dfeff66e | 385 | fi |
1cadb5a2 | 386 | |
20ccef49 ML |
387 | if test -n "$W"; then |
388 | cd "$W" || exit | |
389 | else | |
390 | cd "$D" || exit | |
391 | fi | |
036a72d8 | 392 | |
dfeff66e | 393 | if test -z "$bare" && test -f "$GIT_DIR/REMOTE_HEAD" |
036a72d8 | 394 | then |
63085fab JH |
395 | # a non-bare repository is always in separate-remote layout |
396 | remote_top="refs/remotes/$origin" | |
c72112e6 JH |
397 | head_sha1=`cat "$GIT_DIR/REMOTE_HEAD"` |
398 | case "$head_sha1" in | |
399 | 'ref: refs/'*) | |
400 | # Uh-oh, the remote told us (http transport done against | |
401 | # new style repository with a symref HEAD). | |
402 | # Ideally we should skip the guesswork but for now | |
403 | # opt for minimum change. | |
f327dbce | 404 | head_sha1=`expr "z$head_sha1" : 'zref: refs/heads/\(.*\)'` |
c72112e6 JH |
405 | head_sha1=`cat "$GIT_DIR/$remote_top/$head_sha1"` |
406 | ;; | |
407 | esac | |
47874d6d | 408 | |
c72112e6 | 409 | # The name under $remote_top the remote HEAD seems to point at. |
dfeff66e JH |
410 | head_points_at=$( |
411 | ( | |
3fe71f3a | 412 | test -f "$GIT_DIR/$remote_top/master" && echo "master" |
dfeff66e JH |
413 | cd "$GIT_DIR/$remote_top" && |
414 | find . -type f -print | sed -e 's/^\.\///' | |
415 | ) | ( | |
416 | done=f | |
417 | while read name | |
418 | do | |
419 | test t = $done && continue | |
420 | branch_tip=`cat "$GIT_DIR/$remote_top/$name"` | |
421 | if test "$head_sha1" = "$branch_tip" | |
422 | then | |
423 | echo "$name" | |
424 | done=t | |
425 | fi | |
426 | done | |
427 | ) | |
428 | ) | |
47874d6d | 429 | |
6762079a | 430 | # Upstream URL |
5be60078 | 431 | git config remote."$origin".url "$repo" && |
6762079a NS |
432 | |
433 | # Set up the mappings to track the remote branches. | |
5be60078 | 434 | git config remote."$origin".fetch \ |
6762079a NS |
435 | "+refs/heads/*:$remote_top/*" '^$' && |
436 | ||
61dde8f9 | 437 | # Write out remote.$origin config, and update our "$head_points_at". |
e125c1a7 | 438 | case "$head_points_at" in |
dfeff66e | 439 | ?*) |
61dde8f9 | 440 | # Local default branch |
5be60078 | 441 | git symbolic-ref HEAD "refs/heads/$head_points_at" && |
61dde8f9 JH |
442 | |
443 | # Tracking branch for the primary branch at the remote. | |
5be60078 | 444 | git update-ref HEAD "$head_sha1" && |
61dde8f9 | 445 | |
63085fab | 446 | rm -f "refs/remotes/$origin/HEAD" |
5be60078 | 447 | git symbolic-ref "refs/remotes/$origin/HEAD" \ |
63085fab | 448 | "refs/remotes/$origin/$head_points_at" && |
61dde8f9 | 449 | |
5be60078 JH |
450 | git config branch."$head_points_at".remote "$origin" && |
451 | git config branch."$head_points_at".merge "refs/heads/$head_points_at" | |
6762079a NS |
452 | ;; |
453 | '') | |
454 | # Source had detached HEAD pointing nowhere | |
5be60078 | 455 | git update-ref --no-deref HEAD "$head_sha1" && |
6762079a NS |
456 | rm -f "refs/remotes/$origin/HEAD" |
457 | ;; | |
e125c1a7 JH |
458 | esac |
459 | ||
036a72d8 JH |
460 | case "$no_checkout" in |
461 | '') | |
b0e90897 | 462 | test "z$quiet" = z -a "z$no_progress" = z && v=-v || v= |
5be60078 | 463 | git read-tree -m -u $v HEAD HEAD |
036a72d8 JH |
464 | esac |
465 | fi | |
dfeff66e | 466 | rm -f "$GIT_DIR/CLONE_HEAD" "$GIT_DIR/REMOTE_HEAD" |
41ff7a10 | 467 | |
f803eec5 | 468 | trap - 0 |