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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 "$1.git" && |
c2f599e0 | 24 | { |
223fa327 | 25 | cd .git |
c2f599e0 JH |
26 | pwd |
27 | } | |
223fa327 | 28 | ) 2>/dev/null |
ba375acf LT |
29 | } |
30 | ||
0516de30 JH |
31 | if [ -n "$GIT_SSL_NO_VERIFY" ]; then |
32 | curl_extra_args="-k" | |
33 | fi | |
34 | ||
35 | http_fetch () { | |
36 | # $1 = Remote, $2 = Local | |
66c9ec25 | 37 | curl -nsfL $curl_extra_args "$1" >"$2" |
0516de30 JH |
38 | } |
39 | ||
40 | clone_dumb_http () { | |
41 | # $1 - remote, $2 - local | |
42 | cd "$2" && | |
5e3a620c | 43 | clone_tmp="$GIT_DIR/clone-tmp" && |
0516de30 | 44 | mkdir -p "$clone_tmp" || exit 1 |
3ea099d4 | 45 | if [ -n "$GIT_CURL_FTP_NO_EPSV" -o \ |
5be60078 | 46 | "`git config --bool http.noEPSV`" = true ]; then |
3ea099d4 SK |
47 | curl_extra_args="${curl_extra_args} --disable-epsv" |
48 | fi | |
87b787ac DL |
49 | http_fetch "$1/info/refs" "$clone_tmp/refs" || |
50 | die "Cannot get remote repository information. | |
0516de30 | 51 | Perhaps git-update-server-info needs to be run there?" |
7e8c8255 | 52 | test "z$quiet" = z && v=-v || v= |
0516de30 JH |
53 | while read sha1 refname |
54 | do | |
f327dbce | 55 | name=`expr "z$refname" : 'zrefs/\(.*\)'` && |
cdb39508 | 56 | case "$name" in |
dfeff66e | 57 | *^*) continue;; |
cdb39508 | 58 | esac |
983d2ee2 JH |
59 | case "$bare,$name" in |
60 | yes,* | ,heads/* | ,tags/*) ;; | |
61 | *) continue ;; | |
62 | esac | |
dfeff66e | 63 | if test -n "$use_separate_remote" && |
f327dbce | 64 | branch_name=`expr "z$name" : 'zheads/\(.*\)'` |
dfeff66e | 65 | then |
5ceb05f8 | 66 | tname="remotes/$origin/$branch_name" |
dfeff66e JH |
67 | else |
68 | tname=$name | |
69 | fi | |
928c210a | 70 | git-http-fetch $v -a -w "$tname" "$sha1" "$1" || exit 1 |
0516de30 JH |
71 | done <"$clone_tmp/refs" |
72 | rm -fr "$clone_tmp" | |
c72112e6 JH |
73 | http_fetch "$1/HEAD" "$GIT_DIR/REMOTE_HEAD" || |
74 | rm -f "$GIT_DIR/REMOTE_HEAD" | |
59c93929 SV |
75 | if test -f "$GIT_DIR/REMOTE_HEAD"; then |
76 | head_sha1=`cat "$GIT_DIR/REMOTE_HEAD"` | |
77 | case "$head_sha1" in | |
78 | 'ref: refs/'*) | |
79 | ;; | |
80 | *) | |
81 | git-http-fetch $v -a "$head_sha1" "$1" || | |
82 | rm -f "$GIT_DIR/REMOTE_HEAD" | |
83 | ;; | |
84 | esac | |
85 | fi | |
dfeff66e JH |
86 | } |
87 | ||
167a4a33 | 88 | quiet= |
ef5b4eab | 89 | local=no |
e95ab1ed | 90 | use_local=no |
aae4f42c | 91 | local_shared=no |
a57c8bac | 92 | unset template |
036a72d8 | 93 | no_checkout= |
6ec311da | 94 | upload_pack= |
87e80c4b | 95 | bare= |
dfeff66e JH |
96 | reference= |
97 | origin= | |
e6489a1b | 98 | origin_override= |
71821351 | 99 | use_separate_remote=t |
016e6ccb | 100 | depth= |
83a5ad61 JS |
101 | no_progress= |
102 | test -t 1 || no_progress=--no-progress | |
e95ab1ed JH |
103 | while |
104 | case "$#,$1" in | |
105 | 0,*) break ;; | |
8a1a120c JH |
106 | *,-n|*,--no|*,--no-|*,--no-c|*,--no-ch|*,--no-che|*,--no-chec|\ |
107 | *,--no-check|*,--no-checko|*,--no-checkou|*,--no-checkout) | |
108 | no_checkout=yes ;; | |
87e80c4b JH |
109 | *,--na|*,--nak|*,--nake|*,--naked|\ |
110 | *,-b|*,--b|*,--ba|*,--bar|*,--bare) bare=yes ;; | |
1cadb5a2 | 111 | *,-l|*,--l|*,--lo|*,--loc|*,--loca|*,--local) use_local=yes ;; |
a6080a0a | 112 | *,-s|*,--s|*,--sh|*,--sha|*,--shar|*,--share|*,--shared) |
2c4ed386 | 113 | local_shared=yes; use_local=yes ;; |
a57c8bac JH |
114 | 1,--template) usage ;; |
115 | *,--template) | |
116 | shift; template="--template=$1" ;; | |
117 | *,--template=*) | |
118 | template="$1" ;; | |
167a4a33 | 119 | *,-q|*,--quiet) quiet=-q ;; |
63085fab | 120 | *,--use-separate-remote) ;; |
b360cca0 | 121 | *,--no-separate-remote) |
63085fab | 122 | die "clones are always made with separate-remote layout" ;; |
dfeff66e JH |
123 | 1,--reference) usage ;; |
124 | *,--reference) | |
125 | shift; reference="$1" ;; | |
126 | *,--reference=*) | |
8096fae7 | 127 | reference=`expr "z$1" : 'z--reference=\(.*\)'` ;; |
98a4fef3 | 128 | *,-o|*,--or|*,--ori|*,--orig|*,--origi|*,--origin) |
47874d6d | 129 | case "$2" in |
98a4fef3 YS |
130 | '') |
131 | usage ;; | |
47874d6d | 132 | */*) |
87b787ac | 133 | die "'$2' is not suitable for an origin name" |
47874d6d | 134 | esac |
5be60078 | 135 | git check-ref-format "heads/$2" || |
87b787ac DL |
136 | die "'$2' is not suitable for a branch name" |
137 | test -z "$origin_override" || | |
138 | die "Do not give more than one --origin options." | |
e6489a1b | 139 | origin_override=yes |
e6c310fd JS |
140 | origin="$2"; shift |
141 | ;; | |
1cadb5a2 | 142 | 1,-u|1,--upload-pack) usage ;; |
6ec311da JH |
143 | *,-u|*,--upload-pack) |
144 | shift | |
ae1dffcb JH |
145 | upload_pack="--upload-pack=$1" ;; |
146 | *,--upload-pack=*) | |
4a91a1f3 | 147 | upload_pack=--upload-pack=$(expr "z$1" : 'z-[^=]*=\(.*\)') ;; |
016e6ccb JS |
148 | 1,--depth) usage;; |
149 | *,--depth) | |
150 | shift | |
151 | depth="--depth=$1";; | |
e95ab1ed JH |
152 | *,-*) usage ;; |
153 | *) break ;; | |
154 | esac | |
155 | do | |
156 | shift | |
157 | done | |
158 | ||
ef5b4eab | 159 | repo="$1" |
87b787ac DL |
160 | test -n "$repo" || |
161 | die 'you must specify a repository to clone.' | |
ef5b4eab | 162 | |
b360cca0 | 163 | # --bare implies --no-checkout and --no-separate-remote |
e6489a1b JH |
164 | if test yes = "$bare" |
165 | then | |
166 | if test yes = "$origin_override" | |
167 | then | |
87b787ac | 168 | die '--bare and --origin $origin options are incompatible.' |
e6489a1b JH |
169 | fi |
170 | no_checkout=yes | |
71821351 | 171 | use_separate_remote= |
e6489a1b | 172 | fi |
8a1a120c | 173 | |
47874d6d | 174 | if test -z "$origin" |
dfeff66e | 175 | then |
47874d6d | 176 | origin=origin |
dfeff66e JH |
177 | fi |
178 | ||
ba375acf LT |
179 | # Turn the source into an absolute path if |
180 | # it is local | |
ba375acf LT |
181 | if base=$(get_repo_base "$repo"); then |
182 | repo="$base" | |
183 | local=yes | |
184 | fi | |
185 | ||
3f571e0b | 186 | dir="$2" |
0879aa28 | 187 | # Try using "humanish" part of source repo if user didn't specify one |
e7555785 | 188 | [ -z "$dir" ] && dir=$(echo "$repo" | sed -e 's|/$||' -e 's|:*/*\.git$||' -e 's|.*[/:]||g') |
87b787ac | 189 | [ -e "$dir" ] && die "destination directory '$dir' already exists." |
20ccef49 ML |
190 | [ yes = "$bare" ] && unset GIT_WORK_TREE |
191 | [ -n "$GIT_WORK_TREE" ] && [ -e "$GIT_WORK_TREE" ] && | |
192 | die "working tree '$GIT_WORK_TREE' already exists." | |
68ad8910 | 193 | D= |
20ccef49 | 194 | W= |
68ad8910 ML |
195 | cleanup() { |
196 | err=$? | |
197 | test -z "$D" && rm -rf "$dir" | |
20ccef49 | 198 | test -z "$W" && test -n "$GIT_WORK_TREE" && rm -rf "$GIT_WORK_TREE" |
68ad8910 ML |
199 | cd .. |
200 | test -n "$D" && rm -rf "$D" | |
20ccef49 | 201 | test -n "$W" && rm -rf "$W" |
68ad8910 ML |
202 | exit $err |
203 | } | |
204 | trap cleanup 0 | |
205 | mkdir -p "$dir" && D=$(cd "$dir" && pwd) || usage | |
20ccef49 ML |
206 | test -n "$GIT_WORK_TREE" && mkdir -p "$GIT_WORK_TREE" && |
207 | W=$(cd "$GIT_WORK_TREE" && pwd) && export GIT_WORK_TREE="$W" | |
208 | if test yes = "$bare" || test -n "$GIT_WORK_TREE"; then | |
209 | GIT_DIR="$D" | |
210 | else | |
211 | GIT_DIR="$D/.git" | |
212 | fi && | |
68ad8910 ML |
213 | export GIT_DIR && |
214 | git-init $quiet ${template+"$template"} || usage | |
e95ab1ed | 215 | |
dfeff66e JH |
216 | if test -n "$reference" |
217 | then | |
099c7837 | 218 | ref_git= |
dfeff66e JH |
219 | if test -d "$reference" |
220 | then | |
221 | if test -d "$reference/.git/objects" | |
222 | then | |
099c7837 JH |
223 | ref_git="$reference/.git" |
224 | elif test -d "$reference/objects" | |
225 | then | |
226 | ref_git="$reference" | |
dfeff66e | 227 | fi |
099c7837 JH |
228 | fi |
229 | if test -n "$ref_git" | |
230 | then | |
231 | ref_git=$(cd "$ref_git" && pwd) | |
232 | echo "$ref_git/objects" >"$GIT_DIR/objects/info/alternates" | |
233 | ( | |
234 | GIT_DIR="$ref_git" git for-each-ref \ | |
235 | --format='%(objectname) %(*objectname)' | |
236 | ) | | |
237 | while read a b | |
238 | do | |
239 | test -z "$a" || | |
240 | git update-ref "refs/reference-tmp/$a" "$a" | |
241 | test -z "$b" || | |
242 | git update-ref "refs/reference-tmp/$b" "$b" | |
243 | done | |
dfeff66e | 244 | else |
87b787ac | 245 | die "reference repository '$reference' is not a local directory." |
dfeff66e JH |
246 | fi |
247 | fi | |
248 | ||
249 | rm -f "$GIT_DIR/CLONE_HEAD" | |
250 | ||
e95ab1ed | 251 | # We do local magic only when the user tells us to. |
ba375acf LT |
252 | case "$local,$use_local" in |
253 | yes,yes) | |
87b787ac DL |
254 | ( cd "$repo/objects" ) || |
255 | die "-l flag seen but repository '$repo' is not local." | |
e95ab1ed | 256 | |
aae4f42c JH |
257 | case "$local_shared" in |
258 | no) | |
259 | # See if we can hardlink and drop "l" if not. | |
260 | sample_file=$(cd "$repo" && \ | |
261 | find objects -type f -print | sed -e 1q) | |
e95ab1ed | 262 | |
aae4f42c JH |
263 | # objects directory should not be empty since we are cloning! |
264 | test -f "$repo/$sample_file" || exit | |
e95ab1ed | 265 | |
aae4f42c | 266 | l= |
8a1a120c | 267 | if ln "$repo/$sample_file" "$GIT_DIR/objects/sample" 2>/dev/null |
aae4f42c JH |
268 | then |
269 | l=l | |
270 | fi && | |
8a1a120c | 271 | rm -f "$GIT_DIR/objects/sample" && |
aae4f42c | 272 | cd "$repo" && |
8e1618f9 | 273 | find objects -depth -print | cpio -pumd$l "$GIT_DIR/" || exit 1 |
aae4f42c JH |
274 | ;; |
275 | yes) | |
8a1a120c | 276 | mkdir -p "$GIT_DIR/objects/info" |
04384022 | 277 | echo "$repo/objects" >> "$GIT_DIR/objects/info/alternates" |
aae4f42c JH |
278 | ;; |
279 | esac | |
57a39690 | 280 | git-ls-remote "$repo" >"$GIT_DIR/CLONE_HEAD" || exit 1 |
7558ef89 LT |
281 | ;; |
282 | *) | |
1cadb5a2 JH |
283 | case "$repo" in |
284 | rsync://*) | |
016e6ccb JS |
285 | case "$depth" in |
286 | "") ;; | |
287 | *) die "shallow over rsync not supported" ;; | |
288 | esac | |
4447badc | 289 | rsync $quiet -av --ignore-existing \ |
dfeff66e JH |
290 | --exclude info "$repo/objects/" "$GIT_DIR/objects/" || |
291 | exit | |
4447badc JH |
292 | # Look at objects/info/alternates for rsync -- http will |
293 | # support it natively and git native ones will do it on the | |
294 | # remote end. Not having that file is not a crime. | |
89d844d0 | 295 | rsync -q "$repo/objects/info/alternates" \ |
8a1a120c JH |
296 | "$GIT_DIR/TMP_ALT" 2>/dev/null || |
297 | rm -f "$GIT_DIR/TMP_ALT" | |
298 | if test -f "$GIT_DIR/TMP_ALT" | |
4447badc | 299 | then |
0e9ab02d | 300 | ( cd "$D" && |
4447badc | 301 | . git-parse-remote && |
8a1a120c | 302 | resolve_alternates "$repo" <"$GIT_DIR/TMP_ALT" ) | |
4447badc JH |
303 | while read alt |
304 | do | |
305 | case "$alt" in 'bad alternate: '*) die "$alt";; esac | |
306 | case "$quiet" in | |
307 | '') echo >&2 "Getting alternate: $alt" ;; | |
308 | esac | |
309 | rsync $quiet -av --ignore-existing \ | |
8a1a120c | 310 | --exclude info "$alt" "$GIT_DIR/objects" || exit |
4447badc | 311 | done |
8a1a120c | 312 | rm -f "$GIT_DIR/TMP_ALT" |
4447badc | 313 | fi |
57a39690 | 314 | git-ls-remote "$repo" >"$GIT_DIR/CLONE_HEAD" || exit 1 |
1cadb5a2 | 315 | ;; |
38529e28 | 316 | https://*|http://*|ftp://*) |
016e6ccb JS |
317 | case "$depth" in |
318 | "") ;; | |
319 | *) die "shallow over http or ftp not supported" ;; | |
320 | esac | |
6c5c62f3 FP |
321 | if test -z "@@NO_CURL@@" |
322 | then | |
323 | clone_dumb_http "$repo" "$D" | |
324 | else | |
87b787ac | 325 | die "http transport not supported, rebuild Git with curl support" |
6c5c62f3 | 326 | fi |
1cadb5a2 JH |
327 | ;; |
328 | *) | |
ced78b39 | 329 | case "$upload_pack" in |
83a5ad61 JS |
330 | '') git-fetch-pack --all -k $quiet $depth $no_progress "$repo";; |
331 | *) git-fetch-pack --all -k $quiet "$upload_pack" $depth $no_progress "$repo" ;; | |
87b787ac DL |
332 | esac >"$GIT_DIR/CLONE_HEAD" || |
333 | die "fetch-pack from '$repo' failed." | |
1cadb5a2 | 334 | ;; |
6ec311da | 335 | esac |
7558ef89 LT |
336 | ;; |
337 | esac | |
dfeff66e JH |
338 | test -d "$GIT_DIR/refs/reference-tmp" && rm -fr "$GIT_DIR/refs/reference-tmp" |
339 | ||
340 | if test -f "$GIT_DIR/CLONE_HEAD" | |
341 | then | |
c72112e6 | 342 | # Read git-fetch-pack -k output and store the remote branches. |
def2747d SS |
343 | if [ -n "$use_separate_remote" ] |
344 | then | |
345 | branch_top="remotes/$origin" | |
346 | else | |
347 | branch_top="heads" | |
348 | fi | |
349 | tag_top="tags" | |
350 | while read sha1 name | |
351 | do | |
352 | case "$name" in | |
353 | *'^{}') | |
354 | continue ;; | |
355 | HEAD) | |
356 | destname="REMOTE_HEAD" ;; | |
357 | refs/heads/*) | |
358 | destname="refs/$branch_top/${name#refs/heads/}" ;; | |
359 | refs/tags/*) | |
360 | destname="refs/$tag_top/${name#refs/tags/}" ;; | |
361 | *) | |
362 | continue ;; | |
363 | esac | |
5be60078 | 364 | git update-ref -m "clone: from $repo" "$destname" "$sha1" "" |
def2747d | 365 | done < "$GIT_DIR/CLONE_HEAD" |
dfeff66e | 366 | fi |
1cadb5a2 | 367 | |
20ccef49 ML |
368 | if test -n "$W"; then |
369 | cd "$W" || exit | |
370 | else | |
371 | cd "$D" || exit | |
372 | fi | |
036a72d8 | 373 | |
dfeff66e | 374 | if test -z "$bare" && test -f "$GIT_DIR/REMOTE_HEAD" |
036a72d8 | 375 | then |
63085fab JH |
376 | # a non-bare repository is always in separate-remote layout |
377 | remote_top="refs/remotes/$origin" | |
c72112e6 JH |
378 | head_sha1=`cat "$GIT_DIR/REMOTE_HEAD"` |
379 | case "$head_sha1" in | |
380 | 'ref: refs/'*) | |
381 | # Uh-oh, the remote told us (http transport done against | |
382 | # new style repository with a symref HEAD). | |
383 | # Ideally we should skip the guesswork but for now | |
384 | # opt for minimum change. | |
f327dbce | 385 | head_sha1=`expr "z$head_sha1" : 'zref: refs/heads/\(.*\)'` |
c72112e6 JH |
386 | head_sha1=`cat "$GIT_DIR/$remote_top/$head_sha1"` |
387 | ;; | |
388 | esac | |
47874d6d | 389 | |
c72112e6 | 390 | # The name under $remote_top the remote HEAD seems to point at. |
dfeff66e JH |
391 | head_points_at=$( |
392 | ( | |
3fe71f3a | 393 | test -f "$GIT_DIR/$remote_top/master" && echo "master" |
dfeff66e JH |
394 | cd "$GIT_DIR/$remote_top" && |
395 | find . -type f -print | sed -e 's/^\.\///' | |
396 | ) | ( | |
397 | done=f | |
398 | while read name | |
399 | do | |
400 | test t = $done && continue | |
401 | branch_tip=`cat "$GIT_DIR/$remote_top/$name"` | |
402 | if test "$head_sha1" = "$branch_tip" | |
403 | then | |
404 | echo "$name" | |
405 | done=t | |
406 | fi | |
407 | done | |
408 | ) | |
409 | ) | |
47874d6d | 410 | |
6762079a | 411 | # Upstream URL |
5be60078 | 412 | git config remote."$origin".url "$repo" && |
6762079a NS |
413 | |
414 | # Set up the mappings to track the remote branches. | |
5be60078 | 415 | git config remote."$origin".fetch \ |
6762079a NS |
416 | "+refs/heads/*:$remote_top/*" '^$' && |
417 | ||
61dde8f9 | 418 | # Write out remote.$origin config, and update our "$head_points_at". |
e125c1a7 | 419 | case "$head_points_at" in |
dfeff66e | 420 | ?*) |
61dde8f9 | 421 | # Local default branch |
5be60078 | 422 | git symbolic-ref HEAD "refs/heads/$head_points_at" && |
61dde8f9 JH |
423 | |
424 | # Tracking branch for the primary branch at the remote. | |
5be60078 | 425 | git update-ref HEAD "$head_sha1" && |
61dde8f9 | 426 | |
63085fab | 427 | rm -f "refs/remotes/$origin/HEAD" |
5be60078 | 428 | git symbolic-ref "refs/remotes/$origin/HEAD" \ |
63085fab | 429 | "refs/remotes/$origin/$head_points_at" && |
61dde8f9 | 430 | |
5be60078 JH |
431 | git config branch."$head_points_at".remote "$origin" && |
432 | git config branch."$head_points_at".merge "refs/heads/$head_points_at" | |
6762079a NS |
433 | ;; |
434 | '') | |
435 | # Source had detached HEAD pointing nowhere | |
5be60078 | 436 | git update-ref --no-deref HEAD "$head_sha1" && |
6762079a NS |
437 | rm -f "refs/remotes/$origin/HEAD" |
438 | ;; | |
e125c1a7 JH |
439 | esac |
440 | ||
036a72d8 JH |
441 | case "$no_checkout" in |
442 | '') | |
b0e90897 | 443 | test "z$quiet" = z -a "z$no_progress" = z && v=-v || v= |
5be60078 | 444 | git read-tree -m -u $v HEAD HEAD |
036a72d8 JH |
445 | esac |
446 | fi | |
dfeff66e | 447 | rm -f "$GIT_DIR/CLONE_HEAD" "$GIT_DIR/REMOTE_HEAD" |
41ff7a10 | 448 | |
f803eec5 | 449 | trap - 0 |