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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 | |
5 | # | |
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 | ||
e95ab1ed | 11 | usage() { |
98a4fef3 | 12 | echo >&2 "Usage: $0 [--use-separate-remote] [--reference <reference-repo>] [--bare] [-l [-s]] [-q] [-u <upload-pack>] [--origin <name>] [-n] <repo> [<dir>]" |
e95ab1ed JH |
13 | exit 1 |
14 | } | |
15 | ||
ba375acf LT |
16 | get_repo_base() { |
17 | (cd "$1" && (cd .git ; pwd)) 2> /dev/null | |
18 | } | |
19 | ||
0516de30 JH |
20 | if [ -n "$GIT_SSL_NO_VERIFY" ]; then |
21 | curl_extra_args="-k" | |
22 | fi | |
23 | ||
24 | http_fetch () { | |
25 | # $1 = Remote, $2 = Local | |
66c9ec25 | 26 | curl -nsfL $curl_extra_args "$1" >"$2" |
0516de30 JH |
27 | } |
28 | ||
29 | clone_dumb_http () { | |
30 | # $1 - remote, $2 - local | |
31 | cd "$2" && | |
32 | clone_tmp='.git/clone-tmp' && | |
33 | mkdir -p "$clone_tmp" || exit 1 | |
05621105 | 34 | http_fetch "$1/info/refs" "$clone_tmp/refs" || { |
0516de30 JH |
35 | echo >&2 "Cannot get remote repository information. |
36 | Perhaps git-update-server-info needs to be run there?" | |
37 | exit 1; | |
38 | } | |
0516de30 JH |
39 | while read sha1 refname |
40 | do | |
41 | name=`expr "$refname" : 'refs/\(.*\)'` && | |
cdb39508 | 42 | case "$name" in |
dfeff66e | 43 | *^*) continue;; |
cdb39508 | 44 | esac |
dfeff66e JH |
45 | if test -n "$use_separate_remote" && |
46 | branch_name=`expr "$name" : 'heads/\(.*\)'` | |
47 | then | |
5ceb05f8 | 48 | tname="remotes/$origin/$branch_name" |
dfeff66e JH |
49 | else |
50 | tname=$name | |
51 | fi | |
52 | git-http-fetch -v -a -w "$tname" "$name" "$1/" || exit 1 | |
0516de30 JH |
53 | done <"$clone_tmp/refs" |
54 | rm -fr "$clone_tmp" | |
c72112e6 JH |
55 | http_fetch "$1/HEAD" "$GIT_DIR/REMOTE_HEAD" || |
56 | rm -f "$GIT_DIR/REMOTE_HEAD" | |
dfeff66e JH |
57 | } |
58 | ||
59 | # Read git-fetch-pack -k output and store the remote branches. | |
60 | copy_refs=' | |
61 | use File::Path qw(mkpath); | |
62 | use File::Basename qw(dirname); | |
63 | my $git_dir = $ARGV[0]; | |
64 | my $use_separate_remote = $ARGV[1]; | |
47874d6d | 65 | my $origin = $ARGV[2]; |
dfeff66e | 66 | |
47874d6d | 67 | my $branch_top = ($use_separate_remote ? "remotes/$origin" : "heads"); |
dfeff66e JH |
68 | my $tag_top = "tags"; |
69 | ||
70 | sub store { | |
71 | my ($sha1, $name, $top) = @_; | |
72 | $name = "$git_dir/refs/$top/$name"; | |
73 | mkpath(dirname($name)); | |
74 | open O, ">", "$name"; | |
75 | print O "$sha1\n"; | |
76 | close O; | |
0516de30 JH |
77 | } |
78 | ||
dfeff66e JH |
79 | open FH, "<", "$git_dir/CLONE_HEAD"; |
80 | while (<FH>) { | |
81 | my ($sha1, $name) = /^([0-9a-f]{40})\s(.*)$/; | |
82 | next if ($name =~ /\^\173/); | |
83 | if ($name eq "HEAD") { | |
84 | open O, ">", "$git_dir/REMOTE_HEAD"; | |
85 | print O "$sha1\n"; | |
86 | close O; | |
87 | next; | |
88 | } | |
89 | if ($name =~ s/^refs\/heads\///) { | |
90 | store($sha1, $name, $branch_top); | |
91 | next; | |
92 | } | |
93 | if ($name =~ s/^refs\/tags\///) { | |
94 | store($sha1, $name, $tag_top); | |
95 | next; | |
96 | } | |
97 | } | |
98 | close FH; | |
99 | ' | |
100 | ||
167a4a33 | 101 | quiet= |
ef5b4eab | 102 | local=no |
e95ab1ed | 103 | use_local=no |
aae4f42c | 104 | local_shared=no |
036a72d8 | 105 | no_checkout= |
6ec311da | 106 | upload_pack= |
87e80c4b | 107 | bare= |
dfeff66e JH |
108 | reference= |
109 | origin= | |
e6489a1b | 110 | origin_override= |
dfeff66e | 111 | use_separate_remote= |
e95ab1ed JH |
112 | while |
113 | case "$#,$1" in | |
114 | 0,*) break ;; | |
8a1a120c JH |
115 | *,-n|*,--no|*,--no-|*,--no-c|*,--no-ch|*,--no-che|*,--no-chec|\ |
116 | *,--no-check|*,--no-checko|*,--no-checkou|*,--no-checkout) | |
117 | no_checkout=yes ;; | |
87e80c4b JH |
118 | *,--na|*,--nak|*,--nake|*,--naked|\ |
119 | *,-b|*,--b|*,--ba|*,--bar|*,--bare) bare=yes ;; | |
1cadb5a2 | 120 | *,-l|*,--l|*,--lo|*,--loc|*,--loca|*,--local) use_local=yes ;; |
aae4f42c | 121 | *,-s|*,--s|*,--sh|*,--sha|*,--shar|*,--share|*,--shared) |
2c4ed386 | 122 | local_shared=yes; use_local=yes ;; |
167a4a33 | 123 | *,-q|*,--quiet) quiet=-q ;; |
dfeff66e JH |
124 | *,--use-separate-remote) |
125 | use_separate_remote=t ;; | |
dfeff66e JH |
126 | 1,--reference) usage ;; |
127 | *,--reference) | |
128 | shift; reference="$1" ;; | |
129 | *,--reference=*) | |
130 | reference=`expr "$1" : '--reference=\(.*\)'` ;; | |
98a4fef3 | 131 | *,-o|*,--or|*,--ori|*,--orig|*,--origi|*,--origin) |
47874d6d | 132 | case "$2" in |
98a4fef3 YS |
133 | '') |
134 | usage ;; | |
47874d6d JH |
135 | */*) |
136 | echo >&2 "'$2' is not suitable for an origin name" | |
137 | exit 1 | |
138 | esac | |
139 | git-check-ref-format "heads/$2" || { | |
e6c310fd JS |
140 | echo >&2 "'$2' is not suitable for a branch name" |
141 | exit 1 | |
142 | } | |
e6489a1b | 143 | test -z "$origin_override" || { |
98a4fef3 | 144 | echo >&2 "Do not give more than one --origin options." |
e6489a1b JH |
145 | exit 1 |
146 | } | |
147 | origin_override=yes | |
e6c310fd JS |
148 | origin="$2"; shift |
149 | ;; | |
1cadb5a2 | 150 | 1,-u|1,--upload-pack) usage ;; |
6ec311da JH |
151 | *,-u|*,--upload-pack) |
152 | shift | |
1cadb5a2 | 153 | upload_pack="--exec=$1" ;; |
e95ab1ed JH |
154 | *,-*) usage ;; |
155 | *) break ;; | |
156 | esac | |
157 | do | |
158 | shift | |
159 | done | |
160 | ||
ef5b4eab YS |
161 | repo="$1" |
162 | if test -z "$repo" | |
163 | then | |
164 | echo >&2 'you must specify a repository to clone.' | |
165 | exit 1 | |
166 | fi | |
167 | ||
87e80c4b | 168 | # --bare implies --no-checkout |
e6489a1b JH |
169 | if test yes = "$bare" |
170 | then | |
171 | if test yes = "$origin_override" | |
172 | then | |
98a4fef3 | 173 | echo >&2 '--bare and --origin $origin options are incompatible.' |
e6489a1b JH |
174 | exit 1 |
175 | fi | |
dfeff66e JH |
176 | if test t = "$use_separate_remote" |
177 | then | |
178 | echo >&2 '--bare and --use-separate-remote options are incompatible.' | |
179 | exit 1 | |
180 | fi | |
e6489a1b JH |
181 | no_checkout=yes |
182 | fi | |
8a1a120c | 183 | |
47874d6d | 184 | if test -z "$origin" |
dfeff66e | 185 | then |
47874d6d | 186 | origin=origin |
dfeff66e JH |
187 | fi |
188 | ||
ba375acf LT |
189 | # Turn the source into an absolute path if |
190 | # it is local | |
ba375acf LT |
191 | if base=$(get_repo_base "$repo"); then |
192 | repo="$base" | |
193 | local=yes | |
194 | fi | |
195 | ||
3f571e0b | 196 | dir="$2" |
0879aa28 | 197 | # Try using "humanish" part of source repo if user didn't specify one |
e7555785 | 198 | [ -z "$dir" ] && dir=$(echo "$repo" | sed -e 's|/$||' -e 's|:*/*\.git$||' -e 's|.*[/:]||g') |
b0c698a6 | 199 | [ -e "$dir" ] && echo "$dir already exists." && usage |
7f10f7c4 | 200 | mkdir -p "$dir" && |
8a1a120c | 201 | D=$(cd "$dir" && pwd) && |
edd3ebfe | 202 | trap 'err=$?; cd ..; rm -r "$D"; exit $err' exit |
87e80c4b | 203 | case "$bare" in |
8a1a120c JH |
204 | yes) GIT_DIR="$D" ;; |
205 | *) GIT_DIR="$D/.git" ;; | |
206 | esac && export GIT_DIR && git-init-db || usage | |
87e80c4b | 207 | case "$bare" in |
8a1a120c JH |
208 | yes) |
209 | GIT_DIR="$D" ;; | |
210 | *) | |
211 | GIT_DIR="$D/.git" ;; | |
212 | esac | |
e95ab1ed | 213 | |
dfeff66e JH |
214 | if test -n "$reference" |
215 | then | |
216 | if test -d "$reference" | |
217 | then | |
218 | if test -d "$reference/.git/objects" | |
219 | then | |
220 | reference="$reference/.git" | |
221 | fi | |
222 | reference=$(cd "$reference" && pwd) | |
223 | echo "$reference/objects" >"$GIT_DIR/objects/info/alternates" | |
224 | (cd "$reference" && tar cf - refs) | | |
225 | (cd "$GIT_DIR/refs" && | |
226 | mkdir reference-tmp && | |
227 | cd reference-tmp && | |
228 | tar xf -) | |
229 | else | |
230 | echo >&2 "$reference: not a local directory." && usage | |
231 | fi | |
232 | fi | |
233 | ||
234 | rm -f "$GIT_DIR/CLONE_HEAD" | |
235 | ||
e95ab1ed | 236 | # We do local magic only when the user tells us to. |
ba375acf LT |
237 | case "$local,$use_local" in |
238 | yes,yes) | |
e95ab1ed | 239 | ( cd "$repo/objects" ) || { |
ab6625e0 JH |
240 | echo >&2 "-l flag seen but $repo is not local." |
241 | exit 1 | |
e95ab1ed JH |
242 | } |
243 | ||
aae4f42c JH |
244 | case "$local_shared" in |
245 | no) | |
246 | # See if we can hardlink and drop "l" if not. | |
247 | sample_file=$(cd "$repo" && \ | |
248 | find objects -type f -print | sed -e 1q) | |
e95ab1ed | 249 | |
aae4f42c JH |
250 | # objects directory should not be empty since we are cloning! |
251 | test -f "$repo/$sample_file" || exit | |
e95ab1ed | 252 | |
aae4f42c | 253 | l= |
8a1a120c | 254 | if ln "$repo/$sample_file" "$GIT_DIR/objects/sample" 2>/dev/null |
aae4f42c JH |
255 | then |
256 | l=l | |
257 | fi && | |
8a1a120c | 258 | rm -f "$GIT_DIR/objects/sample" && |
aae4f42c | 259 | cd "$repo" && |
8e1618f9 | 260 | find objects -depth -print | cpio -pumd$l "$GIT_DIR/" || exit 1 |
aae4f42c JH |
261 | ;; |
262 | yes) | |
8a1a120c | 263 | mkdir -p "$GIT_DIR/objects/info" |
0f87f893 JH |
264 | { |
265 | test -f "$repo/objects/info/alternates" && | |
266 | cat "$repo/objects/info/alternates"; | |
267 | echo "$repo/objects" | |
8a1a120c | 268 | } >"$GIT_DIR/objects/info/alternates" |
aae4f42c JH |
269 | ;; |
270 | esac | |
dfeff66e | 271 | git-ls-remote "$repo" >"$GIT_DIR/CLONE_HEAD" |
7558ef89 LT |
272 | ;; |
273 | *) | |
1cadb5a2 JH |
274 | case "$repo" in |
275 | rsync://*) | |
4447badc | 276 | rsync $quiet -av --ignore-existing \ |
dfeff66e JH |
277 | --exclude info "$repo/objects/" "$GIT_DIR/objects/" || |
278 | exit | |
4447badc JH |
279 | # Look at objects/info/alternates for rsync -- http will |
280 | # support it natively and git native ones will do it on the | |
281 | # remote end. Not having that file is not a crime. | |
89d844d0 | 282 | rsync -q "$repo/objects/info/alternates" \ |
8a1a120c JH |
283 | "$GIT_DIR/TMP_ALT" 2>/dev/null || |
284 | rm -f "$GIT_DIR/TMP_ALT" | |
285 | if test -f "$GIT_DIR/TMP_ALT" | |
4447badc | 286 | then |
0e9ab02d | 287 | ( cd "$D" && |
4447badc | 288 | . git-parse-remote && |
8a1a120c | 289 | resolve_alternates "$repo" <"$GIT_DIR/TMP_ALT" ) | |
4447badc JH |
290 | while read alt |
291 | do | |
292 | case "$alt" in 'bad alternate: '*) die "$alt";; esac | |
293 | case "$quiet" in | |
294 | '') echo >&2 "Getting alternate: $alt" ;; | |
295 | esac | |
296 | rsync $quiet -av --ignore-existing \ | |
8a1a120c | 297 | --exclude info "$alt" "$GIT_DIR/objects" || exit |
4447badc | 298 | done |
8a1a120c | 299 | rm -f "$GIT_DIR/TMP_ALT" |
4447badc | 300 | fi |
dfeff66e | 301 | git-ls-remote "$repo" >"$GIT_DIR/CLONE_HEAD" |
1cadb5a2 JH |
302 | ;; |
303 | http://*) | |
6c5c62f3 FP |
304 | if test -z "@@NO_CURL@@" |
305 | then | |
306 | clone_dumb_http "$repo" "$D" | |
307 | else | |
308 | echo >&2 "http transport not supported, rebuild Git with curl support" | |
309 | exit 1 | |
310 | fi | |
1cadb5a2 JH |
311 | ;; |
312 | *) | |
313 | cd "$D" && case "$upload_pack" in | |
dfeff66e JH |
314 | '') git-fetch-pack --all -k $quiet "$repo" ;; |
315 | *) git-fetch-pack --all -k $quiet "$upload_pack" "$repo" ;; | |
316 | esac >"$GIT_DIR/CLONE_HEAD" || { | |
317 | echo >&2 "fetch-pack from '$repo' failed." | |
0a8b4def JH |
318 | exit 1 |
319 | } | |
1cadb5a2 | 320 | ;; |
6ec311da | 321 | esac |
7558ef89 LT |
322 | ;; |
323 | esac | |
dfeff66e JH |
324 | test -d "$GIT_DIR/refs/reference-tmp" && rm -fr "$GIT_DIR/refs/reference-tmp" |
325 | ||
326 | if test -f "$GIT_DIR/CLONE_HEAD" | |
327 | then | |
c72112e6 | 328 | # Read git-fetch-pack -k output and store the remote branches. |
47874d6d | 329 | perl -e "$copy_refs" "$GIT_DIR" "$use_separate_remote" "$origin" |
dfeff66e | 330 | fi |
1cadb5a2 | 331 | |
0e9ab02d | 332 | cd "$D" || exit |
036a72d8 | 333 | |
dfeff66e | 334 | if test -z "$bare" && test -f "$GIT_DIR/REMOTE_HEAD" |
036a72d8 | 335 | then |
dfeff66e JH |
336 | # Figure out which remote branch HEAD points at. |
337 | case "$use_separate_remote" in | |
338 | '') remote_top=refs/heads ;; | |
47874d6d | 339 | *) remote_top="refs/remotes/$origin" ;; |
dfeff66e | 340 | esac |
47874d6d | 341 | |
c72112e6 JH |
342 | head_sha1=`cat "$GIT_DIR/REMOTE_HEAD"` |
343 | case "$head_sha1" in | |
344 | 'ref: refs/'*) | |
345 | # Uh-oh, the remote told us (http transport done against | |
346 | # new style repository with a symref HEAD). | |
347 | # Ideally we should skip the guesswork but for now | |
348 | # opt for minimum change. | |
349 | head_sha1=`expr "$head_sha1" : 'ref: refs/heads/\(.*\)'` | |
350 | head_sha1=`cat "$GIT_DIR/$remote_top/$head_sha1"` | |
351 | ;; | |
352 | esac | |
47874d6d | 353 | |
c72112e6 | 354 | # The name under $remote_top the remote HEAD seems to point at. |
dfeff66e JH |
355 | head_points_at=$( |
356 | ( | |
357 | echo "master" | |
358 | cd "$GIT_DIR/$remote_top" && | |
359 | find . -type f -print | sed -e 's/^\.\///' | |
360 | ) | ( | |
361 | done=f | |
362 | while read name | |
363 | do | |
364 | test t = $done && continue | |
365 | branch_tip=`cat "$GIT_DIR/$remote_top/$name"` | |
366 | if test "$head_sha1" = "$branch_tip" | |
367 | then | |
368 | echo "$name" | |
369 | done=t | |
370 | fi | |
371 | done | |
372 | ) | |
373 | ) | |
47874d6d | 374 | |
c72112e6 | 375 | # Write out remotes/$origin file, and update our "$head_points_at". |
e125c1a7 | 376 | case "$head_points_at" in |
dfeff66e | 377 | ?*) |
8a1a120c | 378 | mkdir -p "$GIT_DIR/remotes" && |
c72112e6 | 379 | git-symbolic-ref HEAD "refs/heads/$head_points_at" && |
dfeff66e | 380 | case "$use_separate_remote" in |
c72112e6 JH |
381 | t) origin_track="$remote_top/$head_points_at" |
382 | git-update-ref HEAD "$head_sha1" ;; | |
383 | *) origin_track="$remote_top/$origin" | |
384 | git-update-ref "refs/heads/$origin" "$head_sha1" ;; | |
dfeff66e | 385 | esac && |
c72112e6 JH |
386 | echo >"$GIT_DIR/remotes/$origin" \ |
387 | "URL: $repo | |
388 | Pull: refs/heads/$head_points_at:$origin_track" && | |
47874d6d JH |
389 | (cd "$GIT_DIR/$remote_top" && find . -type f -print) | |
390 | while read dotslref | |
95d117b6 | 391 | do |
47874d6d | 392 | name=`expr "$dotslref" : './\(.*\)'` && |
c72112e6 JH |
393 | test "$use_separate_remote" = '' && { |
394 | test "$head_points_at" = "$name" || | |
395 | test "$origin" = "$name" | |
396 | } || | |
dfeff66e | 397 | echo "Pull: refs/heads/${name}:$remote_top/${name}" |
5ceb05f8 JH |
398 | done >>"$GIT_DIR/remotes/$origin" && |
399 | case "$use_separate_remote" in | |
400 | t) | |
401 | rm -f "refs/remotes/$origin/HEAD" | |
402 | git-symbolic-ref "refs/remotes/$origin/HEAD" \ | |
403 | "refs/remotes/$origin/$head_points_at" | |
404 | esac | |
e125c1a7 JH |
405 | esac |
406 | ||
036a72d8 JH |
407 | case "$no_checkout" in |
408 | '') | |
744633cb | 409 | git-read-tree -m -u -v HEAD HEAD |
036a72d8 JH |
410 | esac |
411 | fi | |
dfeff66e | 412 | rm -f "$GIT_DIR/CLONE_HEAD" "$GIT_DIR/REMOTE_HEAD" |
41ff7a10 CW |
413 | |
414 | trap - exit | |
415 |