1#!/bin/sh
2#
3# git-submodule.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: $dashless [--quiet] sync [--] [<path>...]"
15OPTIONS_SPEC=
16. git-sh-setup
17. git-sh-i18n
18. git-parse-remote
19require_work_tree
20command=
22branch=
23force=
24reference=
25cached=
26recursive=
27init=
28files=
29nofetch=
30update=
31prefix=
32# The function takes at most 2 arguments. The first argument is the
34# URL that navigates to the submodule origin repo. When relative, this URL
35# is relative to the superproject origin URL repo. The second up_path
36# argument, if specified, is the relative path that navigates
37# from the submodule working tree to the superproject working tree.
38#
39# The output of the function is the origin URL of the submodule.
40#
41# The output will either be an absolute URL or filesystem path (if the
42# superproject origin URL is an absolute URL or filesystem path,
43# respectively) or a relative file system path (if the superproject
44# origin URL is a relative file system path).
45#
46# When the output is a relative file system path, the path is either
47# relative to the submodule working tree, if up_path is specified, or to
48# the superproject working tree otherwise.
49resolve_relative_url ()
50{
51 remote=$(get_default_remote)
52 remoteurl=$(git config "remote.$remote.url") ||
53 remoteurl=$(pwd) # the repository is its own authoritative upstream
54 url="$1"
55 remoteurl=${remoteurl%/}
56 sep=/
57 up_path="$2"
58 case "$remoteurl" in
60 *:*|/*)
61 is_relative=
62 ;;
63 ./*|../*)
64 is_relative=t
65 ;;
66 *)
67 is_relative=t
68 remoteurl="./$remoteurl"
69 ;;
70 esac
71 while test -n "$url"
73 do
74 case "$url" in
75 ../*)
76 url="${url#../}"
77 case "$remoteurl" in
78 */*)
79 remoteurl="${remoteurl%/*}"
80 ;;
81 *:*)
82 remoteurl="${remoteurl%:*}"
83 sep=:
84 ;;
85 *)
86 if test -z "$is_relative" || test "." = "$remoteurl"
87 then
88 die "$(eval_gettext "cannot strip one component off url '\$remoteurl'")"
89 else
90 remoteurl=.
91 fi
92 ;;
93 esac
94 ;;
95 ./*)
96 url="${url#./}"
97 ;;
98 *)
99 break;;
100 esac
101 done
102 remoteurl="$remoteurl$sep${url%/}"
103 echo "${is_relative:+${up_path}}${remoteurl#./}"
104}
105#
107# Get submodule info for registered submodules
108# $@ = path to limit submodule list
109#
110module_list()
111{
112 git ls-files --error-unmatch --stage -- "$@" |
113 perl -e '
114 my %unmerged = ();
115 my ($null_sha1) = ("0" x 40);
116 while (<STDIN>) {
117 chomp;
118 my ($mode, $sha1, $stage, $path) =
119 /^([0-7]+) ([0-9a-f]{40}) ([0-3])\t(.*)$/;
120 next unless $mode eq "160000";
121 if ($stage ne "0") {
122 if (!$unmerged{$path}++) {
123 print "$mode $null_sha1 U\t$path\n";
124 }
125 next;
126 }
127 print "$_\n";
128 }
129 '
130}
131#
133# Map submodule path to submodule name
134#
135# $1 = path
136#
137module_name()
138{
139 # Do we have "submodule.<something>.path = $1" defined in .gitmodules file?
140 sm_path="$1"
141 re=$(printf '%s\n' "$1" | sed -e 's/[].[^$\\*]/\\&/g')
142 name=$( git config -f .gitmodules --get-regexp '^submodule\..*\.path$' |
143 sed -n -e 's|^submodule\.\(.*\)\.path '"$re"'$|\1|p' )
144 test -z "$name" &&
145 die "$(eval_gettext "No submodule mapping found in .gitmodules for path '\$sm_path'")"
146 echo "$name"
147}
148#
150# Clone a submodule
151#
152# Prior to calling, cmd_update checks that a possibly existing
153# path is not a git repository.
154# Likewise, cmd_add checks that path does not exist at all,
155# since it is the location of a new submodule.
156#
157module_clone()
158{
159 sm_path=$1
160 url=$2
161 reference="$3"
162 quiet=
163 if test -n "$GIT_QUIET"
164 then
165 quiet=-q
166 fi
167 gitdir=
169 gitdir_base=
170 name=$(module_name "$sm_path" 2>/dev/null)
171 test -n "$name" || name="$sm_path"
172 base_name=$(dirname "$name")
173 gitdir=$(git rev-parse --git-dir)
175 gitdir_base="$gitdir/modules/$base_name"
176 gitdir="$gitdir/modules/$name"
177 if test -d "$gitdir"
179 then
180 mkdir -p "$sm_path"
181 rm -f "$gitdir/index"
182 else
183 mkdir -p "$gitdir_base"
184 git clone $quiet -n ${reference:+"$reference"} \
185 --separate-git-dir "$gitdir" "$url" "$sm_path" ||
186 die "$(eval_gettext "Clone of '\$url' into submodule path '\$sm_path' failed")"
187 fi
188 # We already are at the root of the work tree but cd_to_toplevel will
190 # resolve any symlinks that might be present in $PWD
191 a=$(cd_to_toplevel && cd "$gitdir" && pwd)/
192 b=$(cd_to_toplevel && cd "$sm_path" && pwd)/
193 # normalize Windows-style absolute paths to POSIX-style absolute paths
194 case $a in [a-zA-Z]:/*) a=/${a%%:*}${a#*:} ;; esac
195 case $b in [a-zA-Z]:/*) b=/${b%%:*}${b#*:} ;; esac
196 # Remove all common leading directories after a sanity check
197 if test "${a#$b}" != "$a" || test "${b#$a}" != "$b"; then
198 die "$(eval_gettext "Gitdir '\$a' is part of the submodule path '\$b' or vice versa")"
199 fi
200 while test "${a%%/*}" = "${b%%/*}"
201 do
202 a=${a#*/}
203 b=${b#*/}
204 done
205 # Now chop off the trailing '/'s that were added in the beginning
206 a=${a%/}
207 b=${b%/}
208 # Turn each leading "*/" component into "../"
210 rel=$(echo $b | sed -e 's|[^/][^/]*|..|g')
211 echo "gitdir: $rel/$a" >"$sm_path/.git"
212 rel=$(echo $a | sed -e 's|[^/][^/]*|..|g')
214 (clear_local_git_env; cd "$sm_path" && GIT_WORK_TREE=. git config core.worktree "$rel/$b")
215}
216#
218# Add a new submodule to the working tree, .gitmodules and the index
219#
220# $@ = repo path
221#
222# optional branch is stored in global branch variable
223#
224cmd_add()
225{
226 # parse $args after "submodule ... add".
227 while test $# -ne 0
228 do
229 case "$1" in
230 -b | --branch)
231 case "$2" in '') usage ;; esac
232 branch=$2
233 shift
234 ;;
235 -f | --force)
236 force=$1
237 ;;
238 -q|--quiet)
239 GIT_QUIET=1
240 ;;
241 --reference)
242 case "$2" in '') usage ;; esac
243 reference="--reference=$2"
244 shift
245 ;;
246 --reference=*)
247 reference="$1"
248 shift
249 ;;
250 --)
251 shift
252 break
253 ;;
254 -*)
255 usage
256 ;;
257 *)
258 break
259 ;;
260 esac
261 shift
262 done
263 repo=$1
265 sm_path=$2
266 if test -z "$sm_path"; then
268 sm_path=$(echo "$repo" |
269 sed -e 's|/$||' -e 's|:*/*\.git$||' -e 's|.*[/:]||g')
270 fi
271 if test -z "$repo" -o -z "$sm_path"; then
273 usage
274 fi
275 # assure repo is absolute or relative to parent
277 case "$repo" in
278 ./*|../*)
279 # dereference source url relative to parent's url
280 realrepo=$(resolve_relative_url "$repo") || exit
281 ;;
282 *:*|/*)
283 # absolute url
284 realrepo=$repo
285 ;;
286 *)
287 die "$(eval_gettext "repo URL: '\$repo' must be absolute or begin with ./|../")"
288 ;;
289 esac
290 # normalize path:
292 # multiple //; leading ./; /./; /../; trailing /
293 sm_path=$(printf '%s/\n' "$sm_path" |
294 sed -e '
295 s|//*|/|g
296 s|^\(\./\)*||
297 s|/\./|/|g
298 :start
299 s|\([^/]*\)/\.\./||
300 tstart
301 s|/*$||
302 ')
303 git ls-files --error-unmatch "$sm_path" > /dev/null 2>&1 &&
304 die "$(eval_gettext "'\$sm_path' already exists in the index")"
305 if test -z "$force" && ! git add --dry-run --ignore-missing "$sm_path" > /dev/null 2>&1
307 then
308 eval_gettextln "The following path is ignored by one of your .gitignore files:
309\$sm_path
310Use -f if you really want to add it." >&2
311 exit 1
312 fi
313 # perhaps the path exists and is already a git repo, else clone it
315 if test -e "$sm_path"
316 then
317 if test -d "$sm_path"/.git -o -f "$sm_path"/.git
318 then
319 eval_gettextln "Adding existing repo at '\$sm_path' to the index"
320 else
321 die "$(eval_gettext "'\$sm_path' already exists and is not a valid git repo")"
322 fi
323 else
325 module_clone "$sm_path" "$realrepo" "$reference" || exit
327 (
328 clear_local_git_env
329 cd "$sm_path" &&
330 # ash fails to wordsplit ${branch:+-b "$branch"...}
331 case "$branch" in
332 '') git checkout -f -q ;;
333 ?*) git checkout -f -q -B "$branch" "origin/$branch" ;;
334 esac
335 ) || die "$(eval_gettext "Unable to checkout submodule '\$sm_path'")"
336 fi
337 git config submodule."$sm_path".url "$realrepo"
338 git add $force "$sm_path" ||
340 die "$(eval_gettext "Failed to add submodule '\$sm_path'")"
341 git config -f .gitmodules submodule."$sm_path".path "$sm_path" &&
343 git config -f .gitmodules submodule."$sm_path".url "$repo" &&
344 git add --force .gitmodules ||
345 die "$(eval_gettext "Failed to register submodule '\$sm_path'")"
346}
347#
349# Execute an arbitrary command sequence in each checked out
350# submodule
351#
352# $@ = command to execute
353#
354cmd_foreach()
355{
356 # parse $args after "submodule ... foreach".
357 while test $# -ne 0
358 do
359 case "$1" in
360 -q|--quiet)
361 GIT_QUIET=1
362 ;;
363 --recursive)
364 recursive=1
365 ;;
366 -*)
367 usage
368 ;;
369 *)
370 break
371 ;;
372 esac
373 shift
374 done
375 toplevel=$(pwd)
377 # dup stdin so that it can be restored when running the external
379 # command in the subshell (and a recursive call to this function)
380 exec 3<&0
381 module_list |
383 while read mode sha1 stage sm_path
384 do
385 if test -e "$sm_path"/.git
386 then
387 say "$(eval_gettext "Entering '\$prefix\$sm_path'")"
388 name=$(module_name "$sm_path")
389 (
390 prefix="$prefix$sm_path/"
391 clear_local_git_env
392 # we make $path available to scripts ...
393 path=$sm_path
394 cd "$sm_path" &&
395 eval "$@" &&
396 if test -n "$recursive"
397 then
398 cmd_foreach "--recursive" "$@"
399 fi
400 ) <&3 3<&- ||
401 die "$(eval_gettext "Stopping at '\$sm_path'; script returned non-zero status.")"
402 fi
403 done
404}
405#
407# Register submodules in .git/config
408#
409# $@ = requested paths (default to all)
410#
411cmd_init()
412{
413 # parse $args after "submodule ... init".
414 while test $# -ne 0
415 do
416 case "$1" in
417 -q|--quiet)
418 GIT_QUIET=1
419 ;;
420 --)
421 shift
422 break
423 ;;
424 -*)
425 usage
426 ;;
427 *)
428 break
429 ;;
430 esac
431 shift
432 done
433 module_list "$@" |
435 while read mode sha1 stage sm_path
436 do
437 name=$(module_name "$sm_path") || exit
438 # Copy url setting when it is not set yet
440 if test -z "$(git config "submodule.$name.url")"
441 then
442 url=$(git config -f .gitmodules submodule."$name".url)
443 test -z "$url" &&
444 die "$(eval_gettext "No url found for submodule path '\$sm_path' in .gitmodules")"
445 # Possibly a url relative to parent
447 case "$url" in
448 ./*|../*)
449 url=$(resolve_relative_url "$url") || exit
450 ;;
451 esac
452 git config submodule."$name".url "$url" ||
453 die "$(eval_gettext "Failed to register url for submodule path '\$sm_path'")"
454 say "$(eval_gettext "Submodule '\$name' (\$url) registered for path '\$sm_path'")"
456 fi
457 # Copy "update" setting when it is not set yet
459 upd="$(git config -f .gitmodules submodule."$name".update)"
460 test -z "$upd" ||
461 test -n "$(git config submodule."$name".update)" ||
462 git config submodule."$name".update "$upd" ||
463 die "$(eval_gettext "Failed to register update mode for submodule path '\$sm_path'")"
464 done
465}
466#
468# Update each submodule path to correct revision, using clone and checkout as needed
469#
470# $@ = requested paths (default to all)
471#
472cmd_update()
473{
474 # parse $args after "submodule ... update".
475 orig_flags=
476 while test $# -ne 0
477 do
478 case "$1" in
479 -q|--quiet)
480 GIT_QUIET=1
481 ;;
482 -i|--init)
483 init=1
484 ;;
485 -N|--no-fetch)
486 nofetch=1
487 ;;
488 -f|--force)
489 force=$1
490 ;;
491 -r|--rebase)
492 update="rebase"
493 ;;
494 --reference)
495 case "$2" in '') usage ;; esac
496 reference="--reference=$2"
497 orig_flags="$orig_flags $(git rev-parse --sq-quote "$1")"
498 shift
499 ;;
500 --reference=*)
501 reference="$1"
502 ;;
503 -m|--merge)
504 update="merge"
505 ;;
506 --recursive)
507 recursive=1
508 ;;
509 --checkout)
510 update="checkout"
511 ;;
512 --)
513 shift
514 break
515 ;;
516 -*)
517 usage
518 ;;
519 *)
520 break
521 ;;
522 esac
523 orig_flags="$orig_flags $(git rev-parse --sq-quote "$1")"
524 shift
525 done
526 if test -n "$init"
528 then
529 cmd_init "--" "$@" || return
530 fi
531 cloned_modules=
533 module_list "$@" | {
534 err=
535 while read mode sha1 stage sm_path
536 do
537 if test "$stage" = U
538 then
539 echo >&2 "Skipping unmerged submodule $sm_path"
540 continue
541 fi
542 name=$(module_name "$sm_path") || exit
543 url=$(git config submodule."$name".url)
544 if ! test -z "$update"
545 then
546 update_module=$update
547 else
548 update_module=$(git config submodule."$name".update)
549 fi
550 if test "$update_module" = "none"
552 then
553 echo "Skipping submodule '$sm_path'"
554 continue
555 fi
556 if test -z "$url"
558 then
559 # Only mention uninitialized submodules when its
560 # path have been specified
561 test "$#" != "0" &&
562 say "$(eval_gettext "Submodule path '\$sm_path' not initialized
563Maybe you want to use 'update --init'?")"
564 continue
565 fi
566 if ! test -d "$sm_path"/.git -o -f "$sm_path"/.git
568 then
569 module_clone "$sm_path" "$url" "$reference"|| exit
570 cloned_modules="$cloned_modules;$name"
571 subsha1=
572 else
573 subsha1=$(clear_local_git_env; cd "$sm_path" &&
574 git rev-parse --verify HEAD) ||
575 die "$(eval_gettext "Unable to find current revision in submodule path '\$sm_path'")"
576 fi
577 if test "$subsha1" != "$sha1"
579 then
580 subforce=$force
581 # If we don't already have a -f flag and the submodule has never been checked out
582 if test -z "$subsha1" -a -z "$force"
583 then
584 subforce="-f"
585 fi
586 if test -z "$nofetch"
588 then
589 # Run fetch only if $sha1 isn't present or it
590 # is not reachable from a ref.
591 (clear_local_git_env; cd "$sm_path" &&
592 ( (rev=$(git rev-list -n 1 $sha1 --not --all 2>/dev/null) &&
593 test -z "$rev") || git-fetch)) ||
594 die "$(eval_gettext "Unable to fetch in submodule path '\$sm_path'")"
595 fi
596 # Is this something we just cloned?
598 case ";$cloned_modules;" in
599 *";$name;"*)
600 # then there is no local change to integrate
601 update_module= ;;
602 esac
603 must_die_on_failure=
605 case "$update_module" in
606 rebase)
607 command="git rebase"
608 die_msg="$(eval_gettext "Unable to rebase '\$sha1' in submodule path '\$sm_path'")"
609 say_msg="$(eval_gettext "Submodule path '\$sm_path': rebased into '\$sha1'")"
610 must_die_on_failure=yes
611 ;;
612 merge)
613 command="git merge"
614 die_msg="$(eval_gettext "Unable to merge '\$sha1' in submodule path '\$sm_path'")"
615 say_msg="$(eval_gettext "Submodule path '\$sm_path': merged in '\$sha1'")"
616 must_die_on_failure=yes
617 ;;
618 *)
619 command="git checkout $subforce -q"
620 die_msg="$(eval_gettext "Unable to checkout '\$sha1' in submodule path '\$sm_path'")"
621 say_msg="$(eval_gettext "Submodule path '\$sm_path': checked out '\$sha1'")"
622 ;;
623 esac
624 if (clear_local_git_env; cd "$sm_path" && $command "$sha1")
626 then
627 say "$say_msg"
628 elif test -n "$must_die_on_failure"
629 then
630 die_with_status 2 "$die_msg"
631 else
632 err="${err};$die_msg"
633 continue
634 fi
635 fi
636 if test -n "$recursive"
638 then
639 (clear_local_git_env; cd "$sm_path" && eval cmd_update "$orig_flags")
640 res=$?
641 if test $res -gt 0
642 then
643 die_msg="$(eval_gettext "Failed to recurse into submodule path '\$sm_path'")"
644 if test $res -eq 1
645 then
646 err="${err};$die_msg"
647 continue
648 else
649 die_with_status $res "$die_msg"
650 fi
651 fi
652 fi
653 done
654 if test -n "$err"
656 then
657 OIFS=$IFS
658 IFS=';'
659 for e in $err
660 do
661 if test -n "$e"
662 then
663 echo >&2 "$e"
664 fi
665 done
666 IFS=$OIFS
667 exit 1
668 fi
669 }
670}
671set_name_rev () {
673 revname=$( (
674 clear_local_git_env
675 cd "$1" && {
676 git describe "$2" 2>/dev/null ||
677 git describe --tags "$2" 2>/dev/null ||
678 git describe --contains "$2" 2>/dev/null ||
679 git describe --all --always "$2"
680 }
681 ) )
682 test -z "$revname" || revname=" ($revname)"
683}
684#
685# Show commit summary for submodules in index or working tree
686#
687# If '--cached' is given, show summary between index and given commit,
688# or between working tree and given commit
689#
690# $@ = [commit (default 'HEAD'),] requested paths (default all)
691#
692cmd_summary() {
693 summary_limit=-1
694 for_status=
695 diff_cmd=diff-index
696 # parse $args after "submodule ... summary".
698 while test $# -ne 0
699 do
700 case "$1" in
701 --cached)
702 cached="$1"
703 ;;
704 --files)
705 files="$1"
706 ;;
707 --for-status)
708 for_status="$1"
709 ;;
710 -n|--summary-limit)
711 if summary_limit=$(($2 + 0)) 2>/dev/null && test "$summary_limit" = "$2"
712 then
713 :
714 else
715 usage
716 fi
717 shift
718 ;;
719 --)
720 shift
721 break
722 ;;
723 -*)
724 usage
725 ;;
726 *)
727 break
728 ;;
729 esac
730 shift
731 done
732 test $summary_limit = 0 && return
734 if rev=$(git rev-parse -q --verify --default HEAD ${1+"$1"})
736 then
737 head=$rev
738 test $# = 0 || shift
739 elif test -z "$1" -o "$1" = "HEAD"
740 then
741 # before the first commit: compare with an empty tree
742 head=$(git hash-object -w -t tree --stdin </dev/null)
743 test -z "$1" || shift
744 else
745 head="HEAD"
746 fi
747 if [ -n "$files" ]
749 then
750 test -n "$cached" &&
751 die "$(gettext -- "--cached cannot be used with --files")"
752 diff_cmd=diff-files
753 head=
754 fi
755 cd_to_toplevel
757 # Get modified modules cared by user
758 modules=$(git $diff_cmd $cached --ignore-submodules=dirty --raw $head -- "$@" |
759 sane_egrep '^:([0-7]* )?160000' |
760 while read mod_src mod_dst sha1_src sha1_dst status name
761 do
762 # Always show modules deleted or type-changed (blob<->module)
763 test $status = D -o $status = T && echo "$name" && continue
764 # Also show added or modified modules which are checked out
765 GIT_DIR="$name/.git" git-rev-parse --git-dir >/dev/null 2>&1 &&
766 echo "$name"
767 done
768 )
769 test -z "$modules" && return
771 git $diff_cmd $cached --ignore-submodules=dirty --raw $head -- $modules |
773 sane_egrep '^:([0-7]* )?160000' |
774 cut -c2- |
775 while read mod_src mod_dst sha1_src sha1_dst status name
776 do
777 if test -z "$cached" &&
778 test $sha1_dst = 0000000000000000000000000000000000000000
779 then
780 case "$mod_dst" in
781 160000)
782 sha1_dst=$(GIT_DIR="$name/.git" git rev-parse HEAD)
783 ;;
784 100644 | 100755 | 120000)
785 sha1_dst=$(git hash-object $name)
786 ;;
787 000000)
788 ;; # removed
789 *)
790 # unexpected type
791 eval_gettextln "unexpected mode \$mod_dst" >&2
792 continue ;;
793 esac
794 fi
795 missing_src=
796 missing_dst=
797 test $mod_src = 160000 &&
799 ! GIT_DIR="$name/.git" git-rev-parse -q --verify $sha1_src^0 >/dev/null &&
800 missing_src=t
801 test $mod_dst = 160000 &&
803 ! GIT_DIR="$name/.git" git-rev-parse -q --verify $sha1_dst^0 >/dev/null &&
804 missing_dst=t
805 total_commits=
807 case "$missing_src,$missing_dst" in
808 t,)
809 errmsg="$(eval_gettext " Warn: \$name doesn't contain commit \$sha1_src")"
810 ;;
811 ,t)
812 errmsg="$(eval_gettext " Warn: \$name doesn't contain commit \$sha1_dst")"
813 ;;
814 t,t)
815 errmsg="$(eval_gettext " Warn: \$name doesn't contain commits \$sha1_src and \$sha1_dst")"
816 ;;
817 *)
818 errmsg=
819 total_commits=$(
820 if test $mod_src = 160000 -a $mod_dst = 160000
821 then
822 range="$sha1_src...$sha1_dst"
823 elif test $mod_src = 160000
824 then
825 range=$sha1_src
826 else
827 range=$sha1_dst
828 fi
829 GIT_DIR="$name/.git" \
830 git rev-list --first-parent $range -- | wc -l
831 )
832 total_commits=" ($(($total_commits + 0)))"
833 ;;
834 esac
835 sha1_abbr_src=$(echo $sha1_src | cut -c1-7)
837 sha1_abbr_dst=$(echo $sha1_dst | cut -c1-7)
838 if test $status = T
839 then
840 blob="$(gettext "blob")"
841 submodule="$(gettext "submodule")"
842 if test $mod_dst = 160000
843 then
844 echo "* $name $sha1_abbr_src($blob)->$sha1_abbr_dst($submodule)$total_commits:"
845 else
846 echo "* $name $sha1_abbr_src($submodule)->$sha1_abbr_dst($blob)$total_commits:"
847 fi
848 else
849 echo "* $name $sha1_abbr_src...$sha1_abbr_dst$total_commits:"
850 fi
851 if test -n "$errmsg"
852 then
853 # Don't give error msg for modification whose dst is not submodule
854 # i.e. deleted or changed to blob
855 test $mod_dst = 160000 && echo "$errmsg"
856 else
857 if test $mod_src = 160000 -a $mod_dst = 160000
858 then
859 limit=
860 test $summary_limit -gt 0 && limit="-$summary_limit"
861 GIT_DIR="$name/.git" \
862 git log $limit --pretty='format: %m %s' \
863 --first-parent $sha1_src...$sha1_dst
864 elif test $mod_dst = 160000
865 then
866 GIT_DIR="$name/.git" \
867 git log --pretty='format: > %s' -1 $sha1_dst
868 else
869 GIT_DIR="$name/.git" \
870 git log --pretty='format: < %s' -1 $sha1_src
871 fi
872 echo
873 fi
874 echo
875 done |
876 if test -n "$for_status"; then
877 if [ -n "$files" ]; then
878 gettextln "# Submodules changed but not updated:"
879 else
880 gettextln "# Submodule changes to be committed:"
881 fi
882 echo "#"
883 sed -e 's|^|# |' -e 's|^# $|#|'
884 else
885 cat
886 fi
887}
888#
889# List all submodules, prefixed with:
890# - submodule not initialized
891# + different revision checked out
892#
893# If --cached was specified the revision in the index will be printed
894# instead of the currently checked out revision.
895#
896# $@ = requested paths (default to all)
897#
898cmd_status()
899{
900 # parse $args after "submodule ... status".
901 orig_flags=
902 while test $# -ne 0
903 do
904 case "$1" in
905 -q|--quiet)
906 GIT_QUIET=1
907 ;;
908 --cached)
909 cached=1
910 ;;
911 --recursive)
912 recursive=1
913 ;;
914 --)
915 shift
916 break
917 ;;
918 -*)
919 usage
920 ;;
921 *)
922 break
923 ;;
924 esac
925 orig_flags="$orig_flags $(git rev-parse --sq-quote "$1")"
926 shift
927 done
928 module_list "$@" |
930 while read mode sha1 stage sm_path
931 do
932 name=$(module_name "$sm_path") || exit
933 url=$(git config submodule."$name".url)
934 displaypath="$prefix$sm_path"
935 if test "$stage" = U
936 then
937 say "U$sha1 $displaypath"
938 continue
939 fi
940 if test -z "$url" || ! test -d "$sm_path"/.git -o -f "$sm_path"/.git
941 then
942 say "-$sha1 $displaypath"
943 continue;
944 fi
945 set_name_rev "$sm_path" "$sha1"
946 if git diff-files --ignore-submodules=dirty --quiet -- "$sm_path"
947 then
948 say " $sha1 $displaypath$revname"
949 else
950 if test -z "$cached"
951 then
952 sha1=$(clear_local_git_env; cd "$sm_path" && git rev-parse --verify HEAD)
953 set_name_rev "$sm_path" "$sha1"
954 fi
955 say "+$sha1 $displaypath$revname"
956 fi
957 if test -n "$recursive"
959 then
960 (
961 prefix="$displaypath/"
962 clear_local_git_env
963 cd "$sm_path" &&
964 eval cmd_status "$orig_args"
965 ) ||
966 die "$(eval_gettext "Failed to recurse into submodule path '\$sm_path'")"
967 fi
968 done
969}
970#
971# Sync remote urls for submodules
972# This makes the value for remote.$remote.url match the value
973# specified in .gitmodules.
974#
975cmd_sync()
976{
977 while test $# -ne 0
978 do
979 case "$1" in
980 -q|--quiet)
981 GIT_QUIET=1
982 shift
983 ;;
984 --)
985 shift
986 break
987 ;;
988 -*)
989 usage
990 ;;
991 *)
992 break
993 ;;
994 esac
995 done
996 cd_to_toplevel
997 module_list "$@" |
998 while read mode sha1 stage sm_path
999 do
1000 name=$(module_name "$sm_path")
1001 url=$(git config -f .gitmodules --get submodule."$name".url)
1002 # Possibly a url relative to parent
1004 case "$url" in
1005 ./*|../*)
1006 # rewrite foo/bar as ../.. to find path from
1007 # submodule work tree to superproject work tree
1008 up_path="$(echo "$sm_path" | sed "s/[^/][^/]*/../g")" &&
1009 # guarantee a trailing /
1010 up_path=${up_path%/}/ &&
1011 # path from submodule work tree to submodule origin repo
1012 sub_origin_url=$(resolve_relative_url "$url" "$up_path") &&
1013 # path from superproject work tree to submodule origin repo
1014 super_config_url=$(resolve_relative_url "$url") || exit
1015 ;;
1016 *)
1017 sub_origin_url="$url"
1018 super_config_url="$url"
1019 ;;
1020 esac
1021 if git config "submodule.$name.url" >/dev/null 2>/dev/null
1023 then
1024 say "$(eval_gettext "Synchronizing submodule url for '\$name'")"
1025 git config submodule."$name".url "$super_config_url"
1026 if test -e "$sm_path"/.git
1028 then
1029 (
1030 clear_local_git_env
1031 cd "$sm_path"
1032 remote=$(get_default_remote)
1033 git config remote."$remote".url "$sub_origin_url"
1034 )
1035 fi
1036 fi
1037 done
1038}
1039# This loop parses the command line arguments to find the
1041# subcommand name to dispatch. Parsing of the subcommand specific
1042# options are primarily done by the subcommand implementations.
1043# Subcommand specific options such as --branch and --cached are
1044# parsed here as well, for backward compatibility.
1045while test $# != 0 && test -z "$command"
1047do
1048 case "$1" in
1049 add | foreach | init | update | status | summary | sync)
1050 command=$1
1051 ;;
1052 -q|--quiet)
1053 GIT_QUIET=1
1054 ;;
1055 -b|--branch)
1056 case "$2" in
1057 '')
1058 usage
1059 ;;
1060 esac
1061 branch="$2"; shift
1062 ;;
1063 --cached)
1064 cached="$1"
1065 ;;
1066 --)
1067 break
1068 ;;
1069 -*)
1070 usage
1071 ;;
1072 *)
1073 break
1074 ;;
1075 esac
1076 shift
1077done
1078# No command word defaults to "status"
1080test -n "$command" || command=status
1081# "-b branch" is accepted only by "add"
1083if test -n "$branch" && test "$command" != add
1084then
1085 usage
1086fi
1087# "--cached" is accepted only by "status" and "summary"
1089if test -n "$cached" && test "$command" != status -a "$command" != summary
1090then
1091 usage
1092fi
1093"cmd_$command" "$@"