1#!/bin/sh
2#
3# git-submodules.sh: add, init, update or list git submodules
4#
5# Copyright (c) 2007 Lars Hjemli
6dashless=$(basename "$0" | sed -e 's/-/ /')
8USAGE="[--quiet] add [-b branch] [-f|--force] [--reference <repository>] [--] <repository> [<path>]
9 or: $dashless [--quiet] status [--cached] [--recursive] [--] [<path>...]
10 or: $dashless [--quiet] init [--] [<path>...]
11 or: $dashless [--quiet] update [--init] [-N|--no-fetch] [-f|--force] [--rebase] [--reference <repository>] [--merge] [--recursive] [--] [<path>...]
12 or: $dashless [--quiet] summary [--cached|--files] [--summary-limit <n>] [commit] [--] [<path>...]
13 or: $dashless [--quiet] foreach [--recursive] <command>
14 or: $dashless [--quiet] sync [--] [<path>...]"
15OPTIONS_SPEC=
16. git-sh-setup
17. git-parse-remote
18require_work_tree
19command=
21branch=
22force=
23reference=
24cached=
25recursive=
26init=
27files=
28nofetch=
29update=
30prefix=
31# Resolve relative url by appending to parent's url
33resolve_relative_url ()
34{
35 remote=$(get_default_remote)
36 remoteurl=$(git config "remote.$remote.url") ||
37 die "remote ($remote) does not have a url defined in .git/config"
38 url="$1"
39 remoteurl=${remoteurl%/}
40 sep=/
41 while test -n "$url"
42 do
43 case "$url" in
44 ../*)
45 url="${url#../}"
46 case "$remoteurl" in
47 */*)
48 remoteurl="${remoteurl%/*}"
49 ;;
50 *:*)
51 remoteurl="${remoteurl%:*}"
52 sep=:
53 ;;
54 *)
55 die "cannot strip one component off url '$remoteurl'"
56 ;;
57 esac
58 ;;
59 ./*)
60 url="${url#./}"
61 ;;
62 *)
63 break;;
64 esac
65 done
66 echo "$remoteurl$sep${url%/}"
67}
68#
70# Get submodule info for registered submodules
71# $@ = path to limit submodule list
72#
73module_list()
74{
75 git ls-files --error-unmatch --stage -- "$@" |
76 perl -e '
77 my %unmerged = ();
78 my ($null_sha1) = ("0" x 40);
79 while (<STDIN>) {
80 chomp;
81 my ($mode, $sha1, $stage, $path) =
82 /^([0-7]+) ([0-9a-f]{40}) ([0-3])\t(.*)$/;
83 next unless $mode eq "160000";
84 if ($stage ne "0") {
85 if (!$unmerged{$path}++) {
86 print "$mode $null_sha1 U\t$path\n";
87 }
88 next;
89 }
90 print "$_\n";
91 }
92 '
93}
94#
96# Map submodule path to submodule name
97#
98# $1 = path
99#
100module_name()
101{
102 # Do we have "submodule.<something>.path = $1" defined in .gitmodules file?
103 re=$(printf '%s\n' "$1" | sed -e 's/[].[^$\\*]/\\&/g')
104 name=$( git config -f .gitmodules --get-regexp '^submodule\..*\.path$' |
105 sed -n -e 's|^submodule\.\(.*\)\.path '"$re"'$|\1|p' )
106 test -z "$name" &&
107 die "No submodule mapping found in .gitmodules for path '$path'"
108 echo "$name"
109}
110#
112# Clone a submodule
113#
114# Prior to calling, cmd_update checks that a possibly existing
115# path is not a git repository.
116# Likewise, cmd_add checks that path does not exist at all,
117# since it is the location of a new submodule.
118#
119module_clone()
120{
121 path=$1
122 url=$2
123 reference="$3"
124 if test -n "$reference"
126 then
127 git-clone "$reference" -n "$url" "$path"
128 else
129 git-clone -n "$url" "$path"
130 fi ||
131 die "Clone of '$url' into submodule path '$path' failed"
132}
133#
135# Add a new submodule to the working tree, .gitmodules and the index
136#
137# $@ = repo path
138#
139# optional branch is stored in global branch variable
140#
141cmd_add()
142{
143 # parse $args after "submodule ... add".
144 while test $# -ne 0
145 do
146 case "$1" in
147 -b | --branch)
148 case "$2" in '') usage ;; esac
149 branch=$2
150 shift
151 ;;
152 -f | --force)
153 force=$1
154 ;;
155 -q|--quiet)
156 GIT_QUIET=1
157 ;;
158 --reference)
159 case "$2" in '') usage ;; esac
160 reference="--reference=$2"
161 shift
162 ;;
163 --reference=*)
164 reference="$1"
165 shift
166 ;;
167 --)
168 shift
169 break
170 ;;
171 -*)
172 usage
173 ;;
174 *)
175 break
176 ;;
177 esac
178 shift
179 done
180 repo=$1
182 path=$2
183 if test -z "$path"; then
185 path=$(echo "$repo" |
186 sed -e 's|/$||' -e 's|:*/*\.git$||' -e 's|.*[/:]||g')
187 fi
188 if test -z "$repo" -o -z "$path"; then
190 usage
191 fi
192 # assure repo is absolute or relative to parent
194 case "$repo" in
195 ./*|../*)
196 # dereference source url relative to parent's url
197 realrepo=$(resolve_relative_url "$repo") || exit
198 ;;
199 *:*|/*)
200 # absolute url
201 realrepo=$repo
202 ;;
203 *)
204 die "repo URL: '$repo' must be absolute or begin with ./|../"
205 ;;
206 esac
207 # normalize path:
209 # multiple //; leading ./; /./; /../; trailing /
210 path=$(printf '%s/\n' "$path" |
211 sed -e '
212 s|//*|/|g
213 s|^\(\./\)*||
214 s|/\./|/|g
215 :start
216 s|\([^/]*\)/\.\./||
217 tstart
218 s|/*$||
219 ')
220 git ls-files --error-unmatch "$path" > /dev/null 2>&1 &&
221 die "'$path' already exists in the index"
222 if test -z "$force" && ! git add --dry-run --ignore-missing "$path" > /dev/null 2>&1
224 then
225 echo >&2 "The following path is ignored by one of your .gitignore files:" &&
226 echo >&2 $path &&
227 echo >&2 "Use -f if you really want to add it."
228 exit 1
229 fi
230 # perhaps the path exists and is already a git repo, else clone it
232 if test -e "$path"
233 then
234 if test -d "$path"/.git -o -f "$path"/.git
235 then
236 echo "Adding existing repo at '$path' to the index"
237 else
238 die "'$path' already exists and is not a valid git repo"
239 fi
240 case "$repo" in
242 ./*|../*)
243 url=$(resolve_relative_url "$repo") || exit
244 ;;
245 *)
246 url="$repo"
247 ;;
248 esac
249 git config submodule."$path".url "$url"
250 else
251 module_clone "$path" "$realrepo" "$reference" || exit
253 (
254 clear_local_git_env
255 cd "$path" &&
256 # ash fails to wordsplit ${branch:+-b "$branch"...}
257 case "$branch" in
258 '') git checkout -f -q ;;
259 ?*) git checkout -f -q -B "$branch" "origin/$branch" ;;
260 esac
261 ) || die "Unable to checkout submodule '$path'"
262 fi
263 git add $force "$path" ||
265 die "Failed to add submodule '$path'"
266 git config -f .gitmodules submodule."$path".path "$path" &&
268 git config -f .gitmodules submodule."$path".url "$repo" &&
269 git add --force .gitmodules ||
270 die "Failed to register submodule '$path'"
271}
272#
274# Execute an arbitrary command sequence in each checked out
275# submodule
276#
277# $@ = command to execute
278#
279cmd_foreach()
280{
281 # parse $args after "submodule ... foreach".
282 while test $# -ne 0
283 do
284 case "$1" in
285 -q|--quiet)
286 GIT_QUIET=1
287 ;;
288 --recursive)
289 recursive=1
290 ;;
291 -*)
292 usage
293 ;;
294 *)
295 break
296 ;;
297 esac
298 shift
299 done
300 toplevel=$(pwd)
302 module_list |
304 while read mode sha1 stage path
305 do
306 if test -e "$path"/.git
307 then
308 say "Entering '$prefix$path'"
309 name=$(module_name "$path")
310 (
311 prefix="$prefix$path/"
312 clear_local_git_env
313 cd "$path" &&
314 eval "$@" &&
315 if test -n "$recursive"
316 then
317 cmd_foreach "--recursive" "$@"
318 fi
319 ) ||
320 die "Stopping at '$path'; script returned non-zero status."
321 fi
322 done
323}
324#
326# Register submodules in .git/config
327#
328# $@ = requested paths (default to all)
329#
330cmd_init()
331{
332 # parse $args after "submodule ... init".
333 while test $# -ne 0
334 do
335 case "$1" in
336 -q|--quiet)
337 GIT_QUIET=1
338 ;;
339 --)
340 shift
341 break
342 ;;
343 -*)
344 usage
345 ;;
346 *)
347 break
348 ;;
349 esac
350 shift
351 done
352 module_list "$@" |
354 while read mode sha1 stage path
355 do
356 # Skip already registered paths
357 name=$(module_name "$path") || exit
358 url=$(git config submodule."$name".url)
359 test -z "$url" || continue
360 url=$(git config -f .gitmodules submodule."$name".url)
362 test -z "$url" &&
363 die "No url found for submodule path '$path' in .gitmodules"
364 # Possibly a url relative to parent
366 case "$url" in
367 ./*|../*)
368 url=$(resolve_relative_url "$url") || exit
369 ;;
370 esac
371 git config submodule."$name".url "$url" ||
373 die "Failed to register url for submodule path '$path'"
374 upd="$(git config -f .gitmodules submodule."$name".update)"
376 test -z "$upd" ||
377 git config submodule."$name".update "$upd" ||
378 die "Failed to register update mode for submodule path '$path'"
379 say "Submodule '$name' ($url) registered for path '$path'"
381 done
382}
383#
385# Update each submodule path to correct revision, using clone and checkout as needed
386#
387# $@ = requested paths (default to all)
388#
389cmd_update()
390{
391 # parse $args after "submodule ... update".
392 orig_flags=
393 while test $# -ne 0
394 do
395 case "$1" in
396 -q|--quiet)
397 GIT_QUIET=1
398 ;;
399 -i|--init)
400 init=1
401 ;;
402 -N|--no-fetch)
403 nofetch=1
404 ;;
405 -f|--force)
406 force=$1
407 ;;
408 -r|--rebase)
409 update="rebase"
410 ;;
411 --reference)
412 case "$2" in '') usage ;; esac
413 reference="--reference=$2"
414 orig_flags="$orig_flags $(git rev-parse --sq-quote "$1")"
415 shift
416 ;;
417 --reference=*)
418 reference="$1"
419 ;;
420 -m|--merge)
421 update="merge"
422 ;;
423 --recursive)
424 recursive=1
425 ;;
426 --)
427 shift
428 break
429 ;;
430 -*)
431 usage
432 ;;
433 *)
434 break
435 ;;
436 esac
437 orig_flags="$orig_flags $(git rev-parse --sq-quote "$1")"
438 shift
439 done
440 if test -n "$init"
442 then
443 cmd_init "--" "$@" || return
444 fi
445 cloned_modules=
447 module_list "$@" | {
448 err=
449 while read mode sha1 stage path
450 do
451 if test "$stage" = U
452 then
453 echo >&2 "Skipping unmerged submodule $path"
454 continue
455 fi
456 name=$(module_name "$path") || exit
457 url=$(git config submodule."$name".url)
458 update_module=$(git config submodule."$name".update)
459 if test -z "$url"
460 then
461 # Only mention uninitialized submodules when its
462 # path have been specified
463 test "$#" != "0" &&
464 say "Submodule path '$path' not initialized" &&
465 say "Maybe you want to use 'update --init'?"
466 continue
467 fi
468 if ! test -d "$path"/.git -o -f "$path"/.git
470 then
471 module_clone "$path" "$url" "$reference"|| exit
472 cloned_modules="$cloned_modules;$name"
473 subsha1=
474 else
475 subsha1=$(clear_local_git_env; cd "$path" &&
476 git rev-parse --verify HEAD) ||
477 die "Unable to find current revision in submodule path '$path'"
478 fi
479 if ! test -z "$update"
481 then
482 update_module=$update
483 fi
484 if test "$subsha1" != "$sha1"
486 then
487 subforce=$force
488 # If we don't already have a -f flag and the submodule has never been checked out
489 if test -z "$subsha1" -a -z "$force"
490 then
491 subforce="-f"
492 fi
493 if test -z "$nofetch"
495 then
496 # Run fetch only if $sha1 isn't present or it
497 # is not reachable from a ref.
498 (clear_local_git_env; cd "$path" &&
499 ( (rev=$(git rev-list -n 1 $sha1 --not --all 2>/dev/null) &&
500 test -z "$rev") || git-fetch)) ||
501 die "Unable to fetch in submodule path '$path'"
502 fi
503 # Is this something we just cloned?
505 case ";$cloned_modules;" in
506 *";$name;"*)
507 # then there is no local change to integrate
508 update_module= ;;
509 esac
510 must_die_on_failure=
512 case "$update_module" in
513 rebase)
514 command="git rebase"
515 action="rebase"
516 msg="rebased onto"
517 must_die_on_failure=yes
518 ;;
519 merge)
520 command="git merge"
521 action="merge"
522 msg="merged in"
523 must_die_on_failure=yes
524 ;;
525 *)
526 command="git checkout $subforce -q"
527 action="checkout"
528 msg="checked out"
529 ;;
530 esac
531 if (clear_local_git_env; cd "$path" && $command "$sha1")
533 then
534 say "Submodule path '$path': $msg '$sha1'"
535 elif test -n "$must_die_on_failure"
536 then
537 die_with_status 2 "Unable to $action '$sha1' in submodule path '$path'"
538 else
539 err="${err};Failed to $action in submodule path '$path'"
540 continue
541 fi
542 fi
543 if test -n "$recursive"
545 then
546 (clear_local_git_env; cd "$path" && eval cmd_update "$orig_flags")
547 res=$?
548 if test $res -gt 0
549 then
550 if test $res -eq 1
551 then
552 err="${err};Failed to recurse into submodule path '$path'"
553 continue
554 else
555 die_with_status $res "Failed to recurse into submodule path '$path'"
556 fi
557 fi
558 fi
559 done
560 if test -n "$err"
562 then
563 OIFS=$IFS
564 IFS=';'
565 for e in $err
566 do
567 if test -n "$e"
568 then
569 echo >&2 "$e"
570 fi
571 done
572 IFS=$OIFS
573 exit 1
574 fi
575 }
576}
577set_name_rev () {
579 revname=$( (
580 clear_local_git_env
581 cd "$1" && {
582 git describe "$2" 2>/dev/null ||
583 git describe --tags "$2" 2>/dev/null ||
584 git describe --contains "$2" 2>/dev/null ||
585 git describe --all --always "$2"
586 }
587 ) )
588 test -z "$revname" || revname=" ($revname)"
589}
590#
591# Show commit summary for submodules in index or working tree
592#
593# If '--cached' is given, show summary between index and given commit,
594# or between working tree and given commit
595#
596# $@ = [commit (default 'HEAD'),] requested paths (default all)
597#
598cmd_summary() {
599 summary_limit=-1
600 for_status=
601 diff_cmd=diff-index
602 # parse $args after "submodule ... summary".
604 while test $# -ne 0
605 do
606 case "$1" in
607 --cached)
608 cached="$1"
609 ;;
610 --files)
611 files="$1"
612 ;;
613 --for-status)
614 for_status="$1"
615 ;;
616 -n|--summary-limit)
617 if summary_limit=$(($2 + 0)) 2>/dev/null && test "$summary_limit" = "$2"
618 then
619 :
620 else
621 usage
622 fi
623 shift
624 ;;
625 --)
626 shift
627 break
628 ;;
629 -*)
630 usage
631 ;;
632 *)
633 break
634 ;;
635 esac
636 shift
637 done
638 test $summary_limit = 0 && return
640 if rev=$(git rev-parse -q --verify --default HEAD ${1+"$1"})
642 then
643 head=$rev
644 test $# = 0 || shift
645 elif test -z "$1" -o "$1" = "HEAD"
646 then
647 # before the first commit: compare with an empty tree
648 head=$(git hash-object -w -t tree --stdin </dev/null)
649 test -z "$1" || shift
650 else
651 head="HEAD"
652 fi
653 if [ -n "$files" ]
655 then
656 test -n "$cached" &&
657 die "--cached cannot be used with --files"
658 diff_cmd=diff-files
659 head=
660 fi
661 cd_to_toplevel
663 # Get modified modules cared by user
664 modules=$(git $diff_cmd $cached --ignore-submodules=dirty --raw $head -- "$@" |
665 sane_egrep '^:([0-7]* )?160000' |
666 while read mod_src mod_dst sha1_src sha1_dst status name
667 do
668 # Always show modules deleted or type-changed (blob<->module)
669 test $status = D -o $status = T && echo "$name" && continue
670 # Also show added or modified modules which are checked out
671 GIT_DIR="$name/.git" git-rev-parse --git-dir >/dev/null 2>&1 &&
672 echo "$name"
673 done
674 )
675 test -z "$modules" && return
677 git $diff_cmd $cached --ignore-submodules=dirty --raw $head -- $modules |
679 sane_egrep '^:([0-7]* )?160000' |
680 cut -c2- |
681 while read mod_src mod_dst sha1_src sha1_dst status name
682 do
683 if test -z "$cached" &&
684 test $sha1_dst = 0000000000000000000000000000000000000000
685 then
686 case "$mod_dst" in
687 160000)
688 sha1_dst=$(GIT_DIR="$name/.git" git rev-parse HEAD)
689 ;;
690 100644 | 100755 | 120000)
691 sha1_dst=$(git hash-object $name)
692 ;;
693 000000)
694 ;; # removed
695 *)
696 # unexpected type
697 echo >&2 "unexpected mode $mod_dst"
698 continue ;;
699 esac
700 fi
701 missing_src=
702 missing_dst=
703 test $mod_src = 160000 &&
705 ! GIT_DIR="$name/.git" git-rev-parse -q --verify $sha1_src^0 >/dev/null &&
706 missing_src=t
707 test $mod_dst = 160000 &&
709 ! GIT_DIR="$name/.git" git-rev-parse -q --verify $sha1_dst^0 >/dev/null &&
710 missing_dst=t
711 total_commits=
713 case "$missing_src,$missing_dst" in
714 t,)
715 errmsg=" Warn: $name doesn't contain commit $sha1_src"
716 ;;
717 ,t)
718 errmsg=" Warn: $name doesn't contain commit $sha1_dst"
719 ;;
720 t,t)
721 errmsg=" Warn: $name doesn't contain commits $sha1_src and $sha1_dst"
722 ;;
723 *)
724 errmsg=
725 total_commits=$(
726 if test $mod_src = 160000 -a $mod_dst = 160000
727 then
728 range="$sha1_src...$sha1_dst"
729 elif test $mod_src = 160000
730 then
731 range=$sha1_src
732 else
733 range=$sha1_dst
734 fi
735 GIT_DIR="$name/.git" \
736 git rev-list --first-parent $range -- | wc -l
737 )
738 total_commits=" ($(($total_commits + 0)))"
739 ;;
740 esac
741 sha1_abbr_src=$(echo $sha1_src | cut -c1-7)
743 sha1_abbr_dst=$(echo $sha1_dst | cut -c1-7)
744 if test $status = T
745 then
746 if test $mod_dst = 160000
747 then
748 echo "* $name $sha1_abbr_src(blob)->$sha1_abbr_dst(submodule)$total_commits:"
749 else
750 echo "* $name $sha1_abbr_src(submodule)->$sha1_abbr_dst(blob)$total_commits:"
751 fi
752 else
753 echo "* $name $sha1_abbr_src...$sha1_abbr_dst$total_commits:"
754 fi
755 if test -n "$errmsg"
756 then
757 # Don't give error msg for modification whose dst is not submodule
758 # i.e. deleted or changed to blob
759 test $mod_dst = 160000 && echo "$errmsg"
760 else
761 if test $mod_src = 160000 -a $mod_dst = 160000
762 then
763 limit=
764 test $summary_limit -gt 0 && limit="-$summary_limit"
765 GIT_DIR="$name/.git" \
766 git log $limit --pretty='format: %m %s' \
767 --first-parent $sha1_src...$sha1_dst
768 elif test $mod_dst = 160000
769 then
770 GIT_DIR="$name/.git" \
771 git log --pretty='format: > %s' -1 $sha1_dst
772 else
773 GIT_DIR="$name/.git" \
774 git log --pretty='format: < %s' -1 $sha1_src
775 fi
776 echo
777 fi
778 echo
779 done |
780 if test -n "$for_status"; then
781 if [ -n "$files" ]; then
782 echo "# Submodules changed but not updated:"
783 else
784 echo "# Submodule changes to be committed:"
785 fi
786 echo "#"
787 sed -e 's|^|# |' -e 's|^# $|#|'
788 else
789 cat
790 fi
791}
792#
793# List all submodules, prefixed with:
794# - submodule not initialized
795# + different revision checked out
796#
797# If --cached was specified the revision in the index will be printed
798# instead of the currently checked out revision.
799#
800# $@ = requested paths (default to all)
801#
802cmd_status()
803{
804 # parse $args after "submodule ... status".
805 orig_flags=
806 while test $# -ne 0
807 do
808 case "$1" in
809 -q|--quiet)
810 GIT_QUIET=1
811 ;;
812 --cached)
813 cached=1
814 ;;
815 --recursive)
816 recursive=1
817 ;;
818 --)
819 shift
820 break
821 ;;
822 -*)
823 usage
824 ;;
825 *)
826 break
827 ;;
828 esac
829 orig_flags="$orig_flags $(git rev-parse --sq-quote "$1")"
830 shift
831 done
832 module_list "$@" |
834 while read mode sha1 stage path
835 do
836 name=$(module_name "$path") || exit
837 url=$(git config submodule."$name".url)
838 displaypath="$prefix$path"
839 if test "$stage" = U
840 then
841 say "U$sha1 $displaypath"
842 continue
843 fi
844 if test -z "$url" || ! test -d "$path"/.git -o -f "$path"/.git
845 then
846 say "-$sha1 $displaypath"
847 continue;
848 fi
849 set_name_rev "$path" "$sha1"
850 if git diff-files --ignore-submodules=dirty --quiet -- "$path"
851 then
852 say " $sha1 $displaypath$revname"
853 else
854 if test -z "$cached"
855 then
856 sha1=$(clear_local_git_env; cd "$path" && git rev-parse --verify HEAD)
857 set_name_rev "$path" "$sha1"
858 fi
859 say "+$sha1 $displaypath$revname"
860 fi
861 if test -n "$recursive"
863 then
864 (
865 prefix="$displaypath/"
866 clear_local_git_env
867 cd "$path" &&
868 eval cmd_status "$orig_args"
869 ) ||
870 die "Failed to recurse into submodule path '$path'"
871 fi
872 done
873}
874#
875# Sync remote urls for submodules
876# This makes the value for remote.$remote.url match the value
877# specified in .gitmodules.
878#
879cmd_sync()
880{
881 while test $# -ne 0
882 do
883 case "$1" in
884 -q|--quiet)
885 GIT_QUIET=1
886 shift
887 ;;
888 --)
889 shift
890 break
891 ;;
892 -*)
893 usage
894 ;;
895 *)
896 break
897 ;;
898 esac
899 done
900 cd_to_toplevel
901 module_list "$@" |
902 while read mode sha1 stage path
903 do
904 name=$(module_name "$path")
905 url=$(git config -f .gitmodules --get submodule."$name".url)
906 # Possibly a url relative to parent
908 case "$url" in
909 ./*|../*)
910 url=$(resolve_relative_url "$url") || exit
911 ;;
912 esac
913 say "Synchronizing submodule url for '$name'"
915 git config submodule."$name".url "$url"
916 if test -e "$path"/.git
918 then
919 (
920 clear_local_git_env
921 cd "$path"
922 remote=$(get_default_remote)
923 git config remote."$remote".url "$url"
924 )
925 fi
926 done
927}
928# This loop parses the command line arguments to find the
930# subcommand name to dispatch. Parsing of the subcommand specific
931# options are primarily done by the subcommand implementations.
932# Subcommand specific options such as --branch and --cached are
933# parsed here as well, for backward compatibility.
934while test $# != 0 && test -z "$command"
936do
937 case "$1" in
938 add | foreach | init | update | status | summary | sync)
939 command=$1
940 ;;
941 -q|--quiet)
942 GIT_QUIET=1
943 ;;
944 -b|--branch)
945 case "$2" in
946 '')
947 usage
948 ;;
949 esac
950 branch="$2"; shift
951 ;;
952 --cached)
953 cached="$1"
954 ;;
955 --)
956 break
957 ;;
958 -*)
959 usage
960 ;;
961 *)
962 break
963 ;;
964 esac
965 shift
966done
967# No command word defaults to "status"
969test -n "$command" || command=status
970# "-b branch" is accepted only by "add"
972if test -n "$branch" && test "$command" != add
973then
974 usage
975fi
976# "--cached" is accepted only by "status" and "summary"
978if test -n "$cached" && test "$command" != status -a "$command" != summary
979then
980 usage
981fi
982"cmd_$command" "$@"