git submodule update: Introduce --recursive to update nested submodules
[git/git.git] / git-submodule.sh
CommitLineData
70c7ac22
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1#!/bin/sh
2#
ecda0723 3# git-submodules.sh: add, init, update or list git submodules
70c7ac22
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4#
5# Copyright (c) 2007 Lars Hjemli
6
1d5bec8b
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7dashless=$(basename "$0" | sed -e 's/-/ /')
8USAGE="[--quiet] add [-b branch] [--reference <repository>] [--] <repository> <path>
9 or: $dashless [--quiet] status [--cached] [--] [<path>...]
10 or: $dashless [--quiet] init [--] [<path>...]
b13fd5c1 11 or: $dashless [--quiet] update [--init] [-N|--no-fetch] [--rebase] [--reference <repository>] [--merge] [--recursive] [--] [<path>...]
1d5bec8b 12 or: $dashless [--quiet] summary [--cached] [--summary-limit <n>] [commit] [--] [<path>...]
15fc56a8 13 or: $dashless [--quiet] foreach [--recursive] <command>
1d5bec8b 14 or: $dashless [--quiet] sync [--] [<path>...]"
8f321a39 15OPTIONS_SPEC=
70c7ac22 16. git-sh-setup
98fcf840 17. git-parse-remote
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18require_work_tree
19
5c08dbbd 20command=
ecda0723 21branch=
d92a3959 22reference=
70c7ac22 23cached=
31ca3ac3 24nofetch=
32948425 25update=
15fc56a8 26prefix=
70c7ac22 27
f31a522a
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28# Resolve relative url by appending to parent's url
29resolve_relative_url ()
30{
98fcf840 31 remote=$(get_default_remote)
8e7e6f39
ML
32 remoteurl=$(git config "remote.$remote.url") ||
33 die "remote ($remote) does not have a url defined in .git/config"
f31a522a 34 url="$1"
99b120af 35 remoteurl=${remoteurl%/}
f31a522a
ML
36 while test -n "$url"
37 do
38 case "$url" in
39 ../*)
40 url="${url#../}"
41 remoteurl="${remoteurl%/*}"
42 ;;
43 ./*)
44 url="${url#./}"
45 ;;
46 *)
47 break;;
48 esac
49 done
99b120af 50 echo "$remoteurl/${url%/}"
f31a522a
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51}
52
a7b3269c
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53#
54# Get submodule info for registered submodules
55# $@ = path to limit submodule list
56#
57module_list()
58{
496917b7 59 git ls-files --error-unmatch --stage -- "$@" | grep '^160000 '
a7b3269c
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60}
61
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62#
63# Map submodule path to submodule name
64#
65# $1 = path
66#
67module_name()
68{
537601ac 69 # Do we have "submodule.<something>.path = $1" defined in .gitmodules file?
fe22e542 70 re=$(printf '%s\n' "$1" | sed -e 's/[].[^$\\*]/\\&/g')
a5099bb4 71 name=$( git config -f .gitmodules --get-regexp '^submodule\..*\.path$' |
537601ac 72 sed -n -e 's|^submodule\.\(.*\)\.path '"$re"'$|\1|p' )
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73 test -z "$name" &&
74 die "No submodule mapping found in .gitmodules for path '$path'"
75 echo "$name"
76}
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77
78#
79# Clone a submodule
80#
23a485e3 81# Prior to calling, cmd_update checks that a possibly existing
ecda0723 82# path is not a git repository.
23a485e3 83# Likewise, cmd_add checks that path does not exist at all,
ecda0723
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84# since it is the location of a new submodule.
85#
33aa6fff
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86module_clone()
87{
88 path=$1
89 url=$2
d92a3959 90 reference="$3"
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91
92 # If there already is a directory at the submodule path,
93 # expect it to be empty (since that is the default checkout
94 # action) and try to remove it.
95 # Note: if $path is a symlink to a directory the test will
96 # succeed but the rmdir will fail. We might want to fix this.
97 if test -d "$path"
98 then
99 rmdir "$path" 2>/dev/null ||
100 die "Directory '$path' exist, but is neither empty nor a git repository"
101 fi
102
103 test -e "$path" &&
104 die "A file already exist at path '$path'"
105
d92a3959
MT
106 if test -n "$reference"
107 then
108 git-clone "$reference" -n "$url" "$path"
109 else
110 git-clone -n "$url" "$path"
111 fi ||
941987a5 112 die "Clone of '$url' into submodule path '$path' failed"
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113}
114
ecda0723
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115#
116# Add a new submodule to the working tree, .gitmodules and the index
117#
ec05df35 118# $@ = repo path
ecda0723
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119#
120# optional branch is stored in global branch variable
121#
23a485e3 122cmd_add()
ecda0723 123{
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124 # parse $args after "submodule ... add".
125 while test $# -ne 0
126 do
127 case "$1" in
128 -b | --branch)
129 case "$2" in '') usage ;; esac
130 branch=$2
131 shift
132 ;;
133 -q|--quiet)
2e6a30ef 134 GIT_QUIET=1
5c08dbbd 135 ;;
d92a3959
MT
136 --reference)
137 case "$2" in '') usage ;; esac
138 reference="--reference=$2"
139 shift
140 ;;
141 --reference=*)
142 reference="$1"
143 shift
144 ;;
5c08dbbd
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145 --)
146 shift
147 break
148 ;;
149 -*)
150 usage
151 ;;
152 *)
153 break
154 ;;
155 esac
156 shift
157 done
158
ecda0723
SV
159 repo=$1
160 path=$2
161
ec05df35 162 if test -z "$repo" -o -z "$path"; then
ecda0723
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163 usage
164 fi
165
ec05df35
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166 # assure repo is absolute or relative to parent
167 case "$repo" in
168 ./*|../*)
169 # dereference source url relative to parent's url
170 realrepo=$(resolve_relative_url "$repo") || exit
171 ;;
172 *:*|/*)
173 # absolute url
174 realrepo=$repo
175 ;;
176 *)
177 die "repo URL: '$repo' must be absolute or begin with ./|../"
178 ;;
179 esac
180
db75ada5
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181 # normalize path:
182 # multiple //; leading ./; /./; /../; trailing /
183 path=$(printf '%s/\n' "$path" |
184 sed -e '
185 s|//*|/|g
186 s|^\(\./\)*||
187 s|/\./|/|g
188 :start
189 s|\([^/]*\)/\.\./||
190 tstart
191 s|/*$||
192 ')
5be60078 193 git ls-files --error-unmatch "$path" > /dev/null 2>&1 &&
ecda0723
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194 die "'$path' already exists in the index"
195
d4264ca3
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196 # perhaps the path exists and is already a git repo, else clone it
197 if test -e "$path"
198 then
e9656473 199 if test -d "$path"/.git -o -f "$path"/.git
d4264ca3
ML
200 then
201 echo "Adding existing repo at '$path' to the index"
202 else
203 die "'$path' already exists and is not a valid git repo"
204 fi
c2f93917
ML
205
206 case "$repo" in
207 ./*|../*)
208 url=$(resolve_relative_url "$repo") || exit
209 ;;
210 *)
211 url="$repo"
212 ;;
213 esac
214 git config submodule."$path".url "$url"
d4264ca3 215 else
d4264ca3 216
d92a3959 217 module_clone "$path" "$realrepo" "$reference" || exit
ea10b60c
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218 (
219 unset GIT_DIR
220 cd "$path" &&
221 # ash fails to wordsplit ${branch:+-b "$branch"...}
222 case "$branch" in
223 '') git checkout -f -q ;;
224 ?*) git checkout -f -q -b "$branch" "origin/$branch" ;;
225 esac
226 ) || die "Unable to checkout submodule '$path'"
d4264ca3
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227 fi
228
ecda0723
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229 git add "$path" ||
230 die "Failed to add submodule '$path'"
231
a5099bb4
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232 git config -f .gitmodules submodule."$path".path "$path" &&
233 git config -f .gitmodules submodule."$path".url "$repo" &&
ecda0723
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234 git add .gitmodules ||
235 die "Failed to register submodule '$path'"
236}
237
19a31f9c
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238#
239# Execute an arbitrary command sequence in each checked out
240# submodule
241#
242# $@ = command to execute
243#
244cmd_foreach()
245{
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246 # parse $args after "submodule ... foreach".
247 while test $# -ne 0
248 do
249 case "$1" in
250 -q|--quiet)
251 GIT_QUIET=1
252 ;;
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253 --recursive)
254 recursive=1
255 ;;
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256 -*)
257 usage
258 ;;
259 *)
260 break
261 ;;
262 esac
263 shift
264 done
265
a7b3269c 266 module_list |
19a31f9c
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267 while read mode sha1 stage path
268 do
269 if test -e "$path"/.git
270 then
15fc56a8 271 say "Entering '$prefix$path'"
1e7f2aad 272 name=$(module_name "$path")
15fc56a8
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273 (
274 prefix="$prefix$path/"
275 unset GIT_DIR
276 cd "$path" &&
277 eval "$@" &&
278 if test -n "$recursive"
279 then
280 cmd_foreach "--recursive" "$@"
281 fi
282 ) ||
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283 die "Stopping at '$path'; script returned non-zero status."
284 fi
285 done
286}
287
70c7ac22 288#
211b7f19 289# Register submodules in .git/config
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290#
291# $@ = requested paths (default to all)
292#
23a485e3 293cmd_init()
70c7ac22 294{
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295 # parse $args after "submodule ... init".
296 while test $# -ne 0
297 do
298 case "$1" in
299 -q|--quiet)
2e6a30ef 300 GIT_QUIET=1
5c08dbbd
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301 ;;
302 --)
303 shift
304 break
305 ;;
306 -*)
307 usage
308 ;;
309 *)
310 break
311 ;;
312 esac
313 shift
314 done
315
a7b3269c 316 module_list "$@" |
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317 while read mode sha1 stage path
318 do
211b7f19 319 # Skip already registered paths
941987a5 320 name=$(module_name "$path") || exit
5be60078 321 url=$(git config submodule."$name".url)
211b7f19 322 test -z "$url" || continue
70c7ac22 323
a5099bb4 324 url=$(git config -f .gitmodules submodule."$name".url)
70c7ac22 325 test -z "$url" &&
941987a5 326 die "No url found for submodule path '$path' in .gitmodules"
70c7ac22 327
f31a522a
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328 # Possibly a url relative to parent
329 case "$url" in
330 ./*|../*)
8e7e6f39 331 url=$(resolve_relative_url "$url") || exit
f31a522a
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332 ;;
333 esac
334
5be60078 335 git config submodule."$name".url "$url" ||
941987a5 336 die "Failed to register url for submodule path '$path'"
70c7ac22 337
32948425
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338 upd="$(git config -f .gitmodules submodule."$name".update)"
339 test -z "$upd" ||
340 git config submodule."$name".update "$upd" ||
341 die "Failed to register update mode for submodule path '$path'"
ca2cedba 342
941987a5 343 say "Submodule '$name' ($url) registered for path '$path'"
70c7ac22
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344 done
345}
346
347#
211b7f19 348# Update each submodule path to correct revision, using clone and checkout as needed
70c7ac22
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349#
350# $@ = requested paths (default to all)
351#
23a485e3 352cmd_update()
70c7ac22 353{
5c08dbbd 354 # parse $args after "submodule ... update".
b13fd5c1 355 orig_args="$@"
5c08dbbd
JH
356 while test $# -ne 0
357 do
358 case "$1" in
359 -q|--quiet)
d1f63a37 360 shift
2e6a30ef 361 GIT_QUIET=1
5c08dbbd 362 ;;
be4d2c83 363 -i|--init)
d92a3959 364 init=1
be4d2c83 365 shift
be4d2c83 366 ;;
31ca3ac3
FF
367 -N|--no-fetch)
368 shift
369 nofetch=1
370 ;;
ca2cedba
PH
371 -r|--rebase)
372 shift
32948425 373 update="rebase"
ca2cedba 374 ;;
d92a3959
MT
375 --reference)
376 case "$2" in '') usage ;; esac
377 reference="--reference=$2"
378 shift 2
379 ;;
380 --reference=*)
381 reference="$1"
382 shift
383 ;;
42b49178
JH
384 -m|--merge)
385 shift
386 update="merge"
387 ;;
b13fd5c1
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388 --recursive)
389 shift
390 recursive=1
391 ;;
5c08dbbd
JH
392 --)
393 shift
394 break
395 ;;
396 -*)
397 usage
398 ;;
399 *)
400 break
401 ;;
402 esac
5c08dbbd
JH
403 done
404
d92a3959
MT
405 if test -n "$init"
406 then
407 cmd_init "--" "$@" || return
408 fi
409
a7b3269c 410 module_list "$@" |
70c7ac22
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411 while read mode sha1 stage path
412 do
941987a5 413 name=$(module_name "$path") || exit
5be60078 414 url=$(git config submodule."$name".url)
32948425 415 update_module=$(git config submodule."$name".update)
211b7f19 416 if test -z "$url"
70c7ac22
LH
417 then
418 # Only mention uninitialized submodules when its
419 # path have been specified
420 test "$#" != "0" &&
989206f5 421 say "Submodule path '$path' not initialized" &&
be4d2c83 422 say "Maybe you want to use 'update --init'?"
211b7f19
LH
423 continue
424 fi
425
ba88a1fe 426 if ! test -d "$path"/.git -o -f "$path"/.git
211b7f19 427 then
d92a3959 428 module_clone "$path" "$url" "$reference"|| exit
bf2d8246
LH
429 subsha1=
430 else
51884080 431 subsha1=$(unset GIT_DIR; cd "$path" &&
5be60078 432 git rev-parse --verify HEAD) ||
941987a5 433 die "Unable to find current revision in submodule path '$path'"
70c7ac22 434 fi
211b7f19 435
32948425 436 if ! test -z "$update"
ca2cedba 437 then
32948425 438 update_module=$update
ca2cedba
PH
439 fi
440
70c7ac22
LH
441 if test "$subsha1" != "$sha1"
442 then
b9b378a0
PY
443 force=
444 if test -z "$subsha1"
445 then
446 force="-f"
447 fi
31ca3ac3
FF
448
449 if test -z "$nofetch"
450 then
451 (unset GIT_DIR; cd "$path" &&
452 git-fetch) ||
453 die "Unable to fetch in submodule path '$path'"
454 fi
455
32948425
JH
456 case "$update_module" in
457 rebase)
458 command="git rebase"
ca2cedba
PH
459 action="rebase"
460 msg="rebased onto"
32948425 461 ;;
42b49178
JH
462 merge)
463 command="git merge"
464 action="merge"
465 msg="merged in"
466 ;;
32948425
JH
467 *)
468 command="git checkout $force -q"
ca2cedba
PH
469 action="checkout"
470 msg="checked out"
32948425
JH
471 ;;
472 esac
70c7ac22 473
ca2cedba
PH
474 (unset GIT_DIR; cd "$path" && $command "$sha1") ||
475 die "Unable to $action '$sha1' in submodule path '$path'"
476 say "Submodule path '$path': $msg '$sha1'"
70c7ac22 477 fi
b13fd5c1
JH
478
479 if test -n "$recursive"
480 then
481 (unset GIT_DIR; cd "$path" && cmd_update $orig_args) ||
482 die "Failed to recurse into submodule path '$path'"
483 fi
70c7ac22
LH
484 done
485}
486
bffe71f4
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487set_name_rev () {
488 revname=$( (
51884080 489 unset GIT_DIR
bffe71f4 490 cd "$1" && {
5be60078
JH
491 git describe "$2" 2>/dev/null ||
492 git describe --tags "$2" 2>/dev/null ||
f669ac0b
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493 git describe --contains "$2" 2>/dev/null ||
494 git describe --all --always "$2"
bffe71f4
EM
495 }
496 ) )
497 test -z "$revname" || revname=" ($revname)"
498}
28f9af5d
PY
499#
500# Show commit summary for submodules in index or working tree
501#
502# If '--cached' is given, show summary between index and given commit,
503# or between working tree and given commit
504#
505# $@ = [commit (default 'HEAD'),] requested paths (default all)
506#
507cmd_summary() {
f2dc06a3 508 summary_limit=-1
d0f64dd4 509 for_status=
f2dc06a3 510
28f9af5d
PY
511 # parse $args after "submodule ... summary".
512 while test $# -ne 0
513 do
514 case "$1" in
515 --cached)
516 cached="$1"
517 ;;
d0f64dd4
PY
518 --for-status)
519 for_status="$1"
520 ;;
f2dc06a3
PY
521 -n|--summary-limit)
522 if summary_limit=$(($2 + 0)) 2>/dev/null && test "$summary_limit" = "$2"
523 then
524 :
525 else
526 usage
527 fi
528 shift
529 ;;
28f9af5d
PY
530 --)
531 shift
532 break
533 ;;
534 -*)
535 usage
536 ;;
537 *)
538 break
539 ;;
540 esac
541 shift
542 done
bffe71f4 543
f2dc06a3
PY
544 test $summary_limit = 0 && return
545
30353a40 546 if rev=$(git rev-parse -q --verify "$1^0")
28f9af5d
PY
547 then
548 head=$rev
549 shift
550 else
551 head=HEAD
552 fi
553
554 cd_to_toplevel
555 # Get modified modules cared by user
556 modules=$(git diff-index $cached --raw $head -- "$@" |
759ad19e 557 egrep '^:([0-7]* )?160000' |
28f9af5d
PY
558 while read mod_src mod_dst sha1_src sha1_dst status name
559 do
560 # Always show modules deleted or type-changed (blob<->module)
561 test $status = D -o $status = T && echo "$name" && continue
562 # Also show added or modified modules which are checked out
563 GIT_DIR="$name/.git" git-rev-parse --git-dir >/dev/null 2>&1 &&
564 echo "$name"
565 done
566 )
1cb639e6 567
d0f64dd4
PY
568 test -z "$modules" && return
569
1cb639e6 570 git diff-index $cached --raw $head -- $modules |
759ad19e 571 egrep '^:([0-7]* )?160000' |
1cb639e6
PY
572 cut -c2- |
573 while read mod_src mod_dst sha1_src sha1_dst status name
574 do
575 if test -z "$cached" &&
576 test $sha1_dst = 0000000000000000000000000000000000000000
577 then
578 case "$mod_dst" in
579 160000)
580 sha1_dst=$(GIT_DIR="$name/.git" git rev-parse HEAD)
581 ;;
582 100644 | 100755 | 120000)
583 sha1_dst=$(git hash-object $name)
584 ;;
585 000000)
586 ;; # removed
587 *)
588 # unexpected type
589 echo >&2 "unexpected mode $mod_dst"
590 continue ;;
591 esac
592 fi
593 missing_src=
594 missing_dst=
595
596 test $mod_src = 160000 &&
30353a40 597 ! GIT_DIR="$name/.git" git-rev-parse -q --verify $sha1_src^0 >/dev/null &&
1cb639e6
PY
598 missing_src=t
599
600 test $mod_dst = 160000 &&
30353a40 601 ! GIT_DIR="$name/.git" git-rev-parse -q --verify $sha1_dst^0 >/dev/null &&
1cb639e6 602 missing_dst=t
bffe71f4 603
1cb639e6
PY
604 total_commits=
605 case "$missing_src,$missing_dst" in
606 t,)
607 errmsg=" Warn: $name doesn't contain commit $sha1_src"
608 ;;
609 ,t)
610 errmsg=" Warn: $name doesn't contain commit $sha1_dst"
611 ;;
612 t,t)
613 errmsg=" Warn: $name doesn't contain commits $sha1_src and $sha1_dst"
614 ;;
615 *)
616 errmsg=
617 total_commits=$(
618 if test $mod_src = 160000 -a $mod_dst = 160000
619 then
620 range="$sha1_src...$sha1_dst"
621 elif test $mod_src = 160000
622 then
623 range=$sha1_src
624 else
625 range=$sha1_dst
626 fi
627 GIT_DIR="$name/.git" \
628 git log --pretty=oneline --first-parent $range | wc -l
629 )
eed35595 630 total_commits=" ($(($total_commits + 0)))"
1cb639e6
PY
631 ;;
632 esac
633
634 sha1_abbr_src=$(echo $sha1_src | cut -c1-7)
635 sha1_abbr_dst=$(echo $sha1_dst | cut -c1-7)
636 if test $status = T
637 then
638 if test $mod_dst = 160000
639 then
640 echo "* $name $sha1_abbr_src(blob)->$sha1_abbr_dst(submodule)$total_commits:"
641 else
642 echo "* $name $sha1_abbr_src(submodule)->$sha1_abbr_dst(blob)$total_commits:"
643 fi
644 else
645 echo "* $name $sha1_abbr_src...$sha1_abbr_dst$total_commits:"
646 fi
647 if test -n "$errmsg"
648 then
649 # Don't give error msg for modification whose dst is not submodule
650 # i.e. deleted or changed to blob
651 test $mod_dst = 160000 && echo "$errmsg"
652 else
653 if test $mod_src = 160000 -a $mod_dst = 160000
654 then
f2dc06a3
PY
655 limit=
656 test $summary_limit -gt 0 && limit="-$summary_limit"
1cb639e6 657 GIT_DIR="$name/.git" \
f2dc06a3 658 git log $limit --pretty='format: %m %s' \
1cb639e6
PY
659 --first-parent $sha1_src...$sha1_dst
660 elif test $mod_dst = 160000
661 then
662 GIT_DIR="$name/.git" \
663 git log --pretty='format: > %s' -1 $sha1_dst
664 else
665 GIT_DIR="$name/.git" \
666 git log --pretty='format: < %s' -1 $sha1_src
667 fi
668 echo
669 fi
670 echo
d0f64dd4
PY
671 done |
672 if test -n "$for_status"; then
673 echo "# Modified submodules:"
674 echo "#"
675 sed -e 's|^|# |' -e 's|^# $|#|'
676 else
677 cat
678 fi
28f9af5d 679}
70c7ac22 680#
941987a5 681# List all submodules, prefixed with:
70c7ac22
LH
682# - submodule not initialized
683# + different revision checked out
684#
685# If --cached was specified the revision in the index will be printed
686# instead of the currently checked out revision.
687#
688# $@ = requested paths (default to all)
689#
23a485e3 690cmd_status()
70c7ac22 691{
5c08dbbd
JH
692 # parse $args after "submodule ... status".
693 while test $# -ne 0
694 do
695 case "$1" in
696 -q|--quiet)
2e6a30ef 697 GIT_QUIET=1
5c08dbbd
JH
698 ;;
699 --cached)
700 cached=1
701 ;;
702 --)
703 shift
704 break
705 ;;
706 -*)
707 usage
708 ;;
709 *)
710 break
711 ;;
712 esac
713 shift
714 done
715
a7b3269c 716 module_list "$@" |
70c7ac22
LH
717 while read mode sha1 stage path
718 do
941987a5 719 name=$(module_name "$path") || exit
5be60078 720 url=$(git config submodule."$name".url)
ba88a1fe 721 if test -z "$url" || ! test -d "$path"/.git -o -f "$path"/.git
70c7ac22
LH
722 then
723 say "-$sha1 $path"
724 continue;
725 fi
41c7c1bd 726 set_name_rev "$path" "$sha1"
70c7ac22
LH
727 if git diff-files --quiet -- "$path"
728 then
bffe71f4 729 say " $sha1 $path$revname"
70c7ac22
LH
730 else
731 if test -z "$cached"
732 then
51884080 733 sha1=$(unset GIT_DIR; cd "$path" && git rev-parse --verify HEAD)
41c7c1bd 734 set_name_rev "$path" "$sha1"
70c7ac22 735 fi
bffe71f4 736 say "+$sha1 $path$revname"
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737 fi
738 done
739}
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740#
741# Sync remote urls for submodules
742# This makes the value for remote.$remote.url match the value
743# specified in .gitmodules.
744#
745cmd_sync()
746{
747 while test $# -ne 0
748 do
749 case "$1" in
750 -q|--quiet)
2e6a30ef 751 GIT_QUIET=1
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752 shift
753 ;;
754 --)
755 shift
756 break
757 ;;
758 -*)
759 usage
760 ;;
761 *)
762 break
763 ;;
764 esac
765 done
766 cd_to_toplevel
767 module_list "$@" |
768 while read mode sha1 stage path
769 do
770 name=$(module_name "$path")
771 url=$(git config -f .gitmodules --get submodule."$name".url)
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772
773 # Possibly a url relative to parent
774 case "$url" in
775 ./*|../*)
776 url=$(resolve_relative_url "$url") || exit
777 ;;
778 esac
779
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780 if test -e "$path"/.git
781 then
782 (
783 unset GIT_DIR
784 cd "$path"
785 remote=$(get_default_remote)
786 say "Synchronizing submodule url for '$name'"
787 git config remote."$remote".url "$url"
788 )
789 fi
790 done
791}
70c7ac22 792
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793# This loop parses the command line arguments to find the
794# subcommand name to dispatch. Parsing of the subcommand specific
795# options are primarily done by the subcommand implementations.
796# Subcommand specific options such as --branch and --cached are
797# parsed here as well, for backward compatibility.
798
799while test $# != 0 && test -z "$command"
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800do
801 case "$1" in
2327f61e 802 add | foreach | init | update | status | summary | sync)
5c08dbbd 803 command=$1
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804 ;;
805 -q|--quiet)
2e6a30ef 806 GIT_QUIET=1
70c7ac22 807 ;;
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808 -b|--branch)
809 case "$2" in
810 '')
811 usage
812 ;;
813 esac
814 branch="$2"; shift
815 ;;
70c7ac22 816 --cached)
28f9af5d 817 cached="$1"
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818 ;;
819 --)
820 break
821 ;;
822 -*)
823 usage
824 ;;
825 *)
826 break
827 ;;
828 esac
829 shift
830done
831
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832# No command word defaults to "status"
833test -n "$command" || command=status
834
835# "-b branch" is accepted only by "add"
836if test -n "$branch" && test "$command" != add
837then
ecda0723 838 usage
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839fi
840
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841# "--cached" is accepted only by "status" and "summary"
842if test -n "$cached" && test "$command" != status -a "$command" != summary
5c08dbbd 843then
70c7ac22 844 usage
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845fi
846
847"cmd_$command" "$@"