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] [--name <name>] [--reference <repository>] [--] <repository> [<path>]
9 or: $dashless [--quiet] status [--cached] [--recursive] [--] [<path>...]
10 or: $dashless [--quiet] init [--] [<path>...]
11 or: $dashless [--quiet] deinit [-f|--force] [--] <path>...
12 or: $dashless [--quiet] update [--init] [--remote] [-N|--no-fetch] [-f|--force] [--checkout|--merge|--rebase] [--reference <repository>] [--recursive] [--] [<path>...]
13 or: $dashless [--quiet] summary [--cached|--files] [--summary-limit <n>] [commit] [--] [<path>...]
14 or: $dashless [--quiet] foreach [--recursive] <command>
15 or: $dashless [--quiet] sync [--recursive] [--] [<path>...]"
16OPTIONS_SPEC=
17SUBDIRECTORY_OK=Yes
18. git-sh-setup
19. git-sh-i18n
20. git-parse-remote
21require_work_tree
22wt_prefix=$(git rev-parse --show-prefix)
23cd_to_toplevel
24command=
26branch=
27force=
28reference=
29cached=
30recursive=
31init=
32files=
33remote=
34nofetch=
35update=
36prefix=
37custom_name=
38depth=
39# The function takes at most 2 arguments. The first argument is the
41# URL that navigates to the submodule origin repo. When relative, this URL
42# is relative to the superproject origin URL repo. The second up_path
43# argument, if specified, is the relative path that navigates
44# from the submodule working tree to the superproject working tree.
45#
46# The output of the function is the origin URL of the submodule.
47#
48# The output will either be an absolute URL or filesystem path (if the
49# superproject origin URL is an absolute URL or filesystem path,
50# respectively) or a relative file system path (if the superproject
51# origin URL is a relative file system path).
52#
53# When the output is a relative file system path, the path is either
54# relative to the submodule working tree, if up_path is specified, or to
55# the superproject working tree otherwise.
56resolve_relative_url ()
57{
58 remote=$(get_default_remote)
59 remoteurl=$(git config "remote.$remote.url") ||
60 remoteurl=$(pwd) # the repository is its own authoritative upstream
61 url="$1"
62 remoteurl=${remoteurl%/}
63 sep=/
64 up_path="$2"
65 case "$remoteurl" in
67 *:*|/*)
68 is_relative=
69 ;;
70 ./*|../*)
71 is_relative=t
72 ;;
73 *)
74 is_relative=t
75 remoteurl="./$remoteurl"
76 ;;
77 esac
78 while test -n "$url"
80 do
81 case "$url" in
82 ../*)
83 url="${url#../}"
84 case "$remoteurl" in
85 */*)
86 remoteurl="${remoteurl%/*}"
87 ;;
88 *:*)
89 remoteurl="${remoteurl%:*}"
90 sep=:
91 ;;
92 *)
93 if test -z "$is_relative" || test "." = "$remoteurl"
94 then
95 die "$(eval_gettext "cannot strip one component off url '\$remoteurl'")"
96 else
97 remoteurl=.
98 fi
99 ;;
100 esac
101 ;;
102 ./*)
103 url="${url#./}"
104 ;;
105 *)
106 break;;
107 esac
108 done
109 remoteurl="$remoteurl$sep${url%/}"
110 echo "${is_relative:+${up_path}}${remoteurl#./}"
111}
112# Resolve a path to be relative to another path. This is intended for
114# converting submodule paths when git-submodule is run in a subdirectory
115# and only handles paths where the directory separator is '/'.
116#
117# The output is the first argument as a path relative to the second argument,
118# which defaults to $wt_prefix if it is omitted.
119relative_path ()
120{
121 local target curdir result
122 target=$1
123 curdir=${2-$wt_prefix}
124 curdir=${curdir%/}
125 result=
126 while test -n "$curdir"
128 do
129 case "$target" in
130 "$curdir/"*)
131 target=${target#"$curdir"/}
132 break
133 ;;
134 esac
135 result="${result}../"
137 if test "$curdir" = "${curdir%/*}"
138 then
139 curdir=
140 else
141 curdir="${curdir%/*}"
142 fi
143 done
144 echo "$result$target"
146}
147#
149# Get submodule info for registered submodules
150# $@ = path to limit submodule list
151#
152module_list()
153{
154 eval "set $(git rev-parse --sq --prefix "$wt_prefix" -- "$@")"
155 (
156 git ls-files -z --error-unmatch --stage -- "$@" ||
157 echo "unmatched pathspec exists"
158 ) |
159 @@PERL@@ -e '
160 my %unmerged = ();
161 my ($null_sha1) = ("0" x 40);
162 my @out = ();
163 my $unmatched = 0;
164 $/ = "\0";
165 while (<STDIN>) {
166 if (/^unmatched pathspec/) {
167 $unmatched = 1;
168 next;
169 }
170 chomp;
171 my ($mode, $sha1, $stage, $path) =
172 /^([0-7]+) ([0-9a-f]{40}) ([0-3])\t(.*)$/;
173 next unless $mode eq "160000";
174 if ($stage ne "0") {
175 if (!$unmerged{$path}++) {
176 push @out, "$mode $null_sha1 U\t$path\n";
177 }
178 next;
179 }
180 push @out, "$_\n";
181 }
182 if ($unmatched) {
183 print "#unmatched\n";
184 } else {
185 print for (@out);
186 }
187 '
188}
189die_if_unmatched ()
191{
192 if test "$1" = "#unmatched"
193 then
194 exit 1
195 fi
196}
197#
199# Print a submodule configuration setting
200#
201# $1 = submodule name
202# $2 = option name
203# $3 = default value
204#
205# Checks in the usual git-config places first (for overrides),
206# otherwise it falls back on .gitmodules. This allows you to
207# distribute project-wide defaults in .gitmodules, while still
208# customizing individual repositories if necessary. If the option is
209# not in .gitmodules either, print a default value.
210#
211get_submodule_config () {
212 name="$1"
213 option="$2"
214 default="$3"
215 value=$(git config submodule."$name"."$option")
216 if test -z "$value"
217 then
218 value=$(git config -f .gitmodules submodule."$name"."$option")
219 fi
220 printf '%s' "${value:-$default}"
221}
222#
225# Map submodule path to submodule name
226#
227# $1 = path
228#
229module_name()
230{
231 # Do we have "submodule.<something>.path = $1" defined in .gitmodules file?
232 sm_path="$1"
233 re=$(printf '%s\n' "$1" | sed -e 's/[].[^$\\*]/\\&/g')
234 name=$( git config -f .gitmodules --get-regexp '^submodule\..*\.path$' |
235 sed -n -e 's|^submodule\.\(.*\)\.path '"$re"'$|\1|p' )
236 test -z "$name" &&
237 die "$(eval_gettext "No submodule mapping found in .gitmodules for path '\$sm_path'")"
238 echo "$name"
239}
240#
242# Clone a submodule
243#
244# $1 = submodule path
245# $2 = submodule name
246# $3 = URL to clone
247# $4 = reference repository to reuse (empty for independent)
248# $5 = depth argument for shallow clones (empty for deep)
249#
250# Prior to calling, cmd_update checks that a possibly existing
251# path is not a git repository.
252# Likewise, cmd_add checks that path does not exist at all,
253# since it is the location of a new submodule.
254#
255module_clone()
256{
257 sm_path=$1
258 name=$2
259 url=$3
260 reference="$4"
261 depth="$5"
262 quiet=
263 if test -n "$GIT_QUIET"
264 then
265 quiet=-q
266 fi
267 gitdir=
269 gitdir_base=
270 base_name=$(dirname "$name")
271 gitdir=$(git rev-parse --git-dir)
273 gitdir_base="$gitdir/modules/$base_name"
274 gitdir="$gitdir/modules/$name"
275 if test -d "$gitdir"
277 then
278 mkdir -p "$sm_path"
279 rm -f "$gitdir/index"
280 else
281 mkdir -p "$gitdir_base"
282 (
283 clear_local_git_env
284 git clone $quiet ${depth:+"$depth"} -n ${reference:+"$reference"} \
285 --separate-git-dir "$gitdir" "$url" "$sm_path"
286 ) ||
287 die "$(eval_gettext "Clone of '\$url' into submodule path '\$sm_path' failed")"
288 fi
289 # We already are at the root of the work tree but cd_to_toplevel will
291 # resolve any symlinks that might be present in $PWD
292 a=$(cd_to_toplevel && cd "$gitdir" && pwd)/
293 b=$(cd_to_toplevel && cd "$sm_path" && pwd)/
294 # normalize Windows-style absolute paths to POSIX-style absolute paths
295 case $a in [a-zA-Z]:/*) a=/${a%%:*}${a#*:} ;; esac
296 case $b in [a-zA-Z]:/*) b=/${b%%:*}${b#*:} ;; esac
297 # Remove all common leading directories after a sanity check
298 if test "${a#$b}" != "$a" || test "${b#$a}" != "$b"; then
299 die "$(eval_gettext "Gitdir '\$a' is part of the submodule path '\$b' or vice versa")"
300 fi
301 while test "${a%%/*}" = "${b%%/*}"
302 do
303 a=${a#*/}
304 b=${b#*/}
305 done
306 # Now chop off the trailing '/'s that were added in the beginning
307 a=${a%/}
308 b=${b%/}
309 # Turn each leading "*/" component into "../"
311 rel=$(echo $b | sed -e 's|[^/][^/]*|..|g')
312 echo "gitdir: $rel/$a" >"$sm_path/.git"
313 rel=$(echo $a | sed -e 's|[^/][^/]*|..|g')
315 (clear_local_git_env; cd "$sm_path" && GIT_WORK_TREE=. git config core.worktree "$rel/$b")
316}
317isnumber()
319{
320 n=$(($1 + 0)) 2>/dev/null && test "$n" = "$1"
321}
322#
324# Add a new submodule to the working tree, .gitmodules and the index
325#
326# $@ = repo path
327#
328# optional branch is stored in global branch variable
329#
330cmd_add()
331{
332 # parse $args after "submodule ... add".
333 reference_path=
334 while test $# -ne 0
335 do
336 case "$1" in
337 -b | --branch)
338 case "$2" in '') usage ;; esac
339 branch=$2
340 shift
341 ;;
342 -f | --force)
343 force=$1
344 ;;
345 -q|--quiet)
346 GIT_QUIET=1
347 ;;
348 --reference)
349 case "$2" in '') usage ;; esac
350 reference_path=$2
351 shift
352 ;;
353 --reference=*)
354 reference_path="${1#--reference=}"
355 ;;
356 --name)
357 case "$2" in '') usage ;; esac
358 custom_name=$2
359 shift
360 ;;
361 --depth)
362 case "$2" in '') usage ;; esac
363 depth="--depth=$2"
364 shift
365 ;;
366 --depth=*)
367 depth=$1
368 ;;
369 --)
370 shift
371 break
372 ;;
373 -*)
374 usage
375 ;;
376 *)
377 break
378 ;;
379 esac
380 shift
381 done
382 if test -n "$reference_path"
384 then
385 is_absolute_path "$reference_path" ||
386 reference_path="$wt_prefix$reference_path"
387 reference="--reference=$reference_path"
389 fi
390 repo=$1
392 sm_path=$2
393 if test -z "$sm_path"; then
395 sm_path=$(echo "$repo" |
396 sed -e 's|/$||' -e 's|:*/*\.git$||' -e 's|.*[/:]||g')
397 fi
398 if test -z "$repo" -o -z "$sm_path"; then
400 usage
401 fi
402 is_absolute_path "$sm_path" || sm_path="$wt_prefix$sm_path"
404 # assure repo is absolute or relative to parent
406 case "$repo" in
407 ./*|../*)
408 test -z "$wt_prefix" ||
409 die "$(gettext "Relative path can only be used from the toplevel of the working tree")"
410 # dereference source url relative to parent's url
412 realrepo=$(resolve_relative_url "$repo") || exit
413 ;;
414 *:*|/*)
415 # absolute url
416 realrepo=$repo
417 ;;
418 *)
419 die "$(eval_gettext "repo URL: '\$repo' must be absolute or begin with ./|../")"
420 ;;
421 esac
422 # normalize path:
424 # multiple //; leading ./; /./; /../; trailing /
425 sm_path=$(printf '%s/\n' "$sm_path" |
426 sed -e '
427 s|//*|/|g
428 s|^\(\./\)*||
429 s|/\./|/|g
430 :start
431 s|\([^/]*\)/\.\./||
432 tstart
433 s|/*$||
434 ')
435 git ls-files --error-unmatch "$sm_path" > /dev/null 2>&1 &&
436 die "$(eval_gettext "'\$sm_path' already exists in the index")"
437 if test -z "$force" && ! git add --dry-run --ignore-missing "$sm_path" > /dev/null 2>&1
439 then
440 eval_gettextln "The following path is ignored by one of your .gitignore files:
441\$sm_path
442Use -f if you really want to add it." >&2
443 exit 1
444 fi
445 if test -n "$custom_name"
447 then
448 sm_name="$custom_name"
449 else
450 sm_name="$sm_path"
451 fi
452 # perhaps the path exists and is already a git repo, else clone it
454 if test -e "$sm_path"
455 then
456 if test -d "$sm_path"/.git -o -f "$sm_path"/.git
457 then
458 eval_gettextln "Adding existing repo at '\$sm_path' to the index"
459 else
460 die "$(eval_gettext "'\$sm_path' already exists and is not a valid git repo")"
461 fi
462 else
464 if test -d ".git/modules/$sm_name"
465 then
466 if test -z "$force"
467 then
468 echo >&2 "$(eval_gettext "A git directory for '\$sm_name' is found locally with remote(s):")"
469 GIT_DIR=".git/modules/$sm_name" GIT_WORK_TREE=. git remote -v | grep '(fetch)' | sed -e s,^," ", -e s,' (fetch)',, >&2
470 echo >&2 "$(eval_gettext "If you want to reuse this local git directory instead of cloning again from")"
471 echo >&2 " $realrepo"
472 echo >&2 "$(eval_gettext "use the '--force' option. If the local git directory is not the correct repo")"
473 die "$(eval_gettext "or you are unsure what this means choose another name with the '--name' option.")"
474 else
475 echo "$(eval_gettext "Reactivating local git directory for submodule '\$sm_name'.")"
476 fi
477 fi
478 module_clone "$sm_path" "$sm_name" "$realrepo" "$reference" "$depth" || exit
479 (
480 clear_local_git_env
481 cd "$sm_path" &&
482 # ash fails to wordsplit ${branch:+-b "$branch"...}
483 case "$branch" in
484 '') git checkout -f -q ;;
485 ?*) git checkout -f -q -B "$branch" "origin/$branch" ;;
486 esac
487 ) || die "$(eval_gettext "Unable to checkout submodule '\$sm_path'")"
488 fi
489 git config submodule."$sm_name".url "$realrepo"
490 git add $force "$sm_path" ||
492 die "$(eval_gettext "Failed to add submodule '\$sm_path'")"
493 git config -f .gitmodules submodule."$sm_name".path "$sm_path" &&
495 git config -f .gitmodules submodule."$sm_name".url "$repo" &&
496 if test -n "$branch"
497 then
498 git config -f .gitmodules submodule."$sm_name".branch "$branch"
499 fi &&
500 git add --force .gitmodules ||
501 die "$(eval_gettext "Failed to register submodule '\$sm_path'")"
502}
503#
505# Execute an arbitrary command sequence in each checked out
506# submodule
507#
508# $@ = command to execute
509#
510cmd_foreach()
511{
512 # parse $args after "submodule ... foreach".
513 while test $# -ne 0
514 do
515 case "$1" in
516 -q|--quiet)
517 GIT_QUIET=1
518 ;;
519 --recursive)
520 recursive=1
521 ;;
522 -*)
523 usage
524 ;;
525 *)
526 break
527 ;;
528 esac
529 shift
530 done
531 toplevel=$(pwd)
533 # dup stdin so that it can be restored when running the external
535 # command in the subshell (and a recursive call to this function)
536 exec 3<&0
537 module_list |
539 while read mode sha1 stage sm_path
540 do
541 die_if_unmatched "$mode"
542 if test -e "$sm_path"/.git
543 then
544 displaypath=$(relative_path "$sm_path")
545 say "$(eval_gettext "Entering '\$prefix\$displaypath'")"
546 name=$(module_name "$sm_path")
547 (
548 prefix="$prefix$sm_path/"
549 clear_local_git_env
550 cd "$sm_path" &&
551 sm_path=$(relative_path "$sm_path") &&
552 # we make $path available to scripts ...
553 path=$sm_path &&
554 if test $# -eq 1
555 then
556 eval "$1"
557 else
558 "$@"
559 fi &&
560 if test -n "$recursive"
561 then
562 cmd_foreach "--recursive" "$@"
563 fi
564 ) <&3 3<&- ||
565 die "$(eval_gettext "Stopping at '\$prefix\$displaypath'; script returned non-zero status.")"
566 fi
567 done
568}
569#
571# Register submodules in .git/config
572#
573# $@ = requested paths (default to all)
574#
575cmd_init()
576{
577 # parse $args after "submodule ... init".
578 while test $# -ne 0
579 do
580 case "$1" in
581 -q|--quiet)
582 GIT_QUIET=1
583 ;;
584 --)
585 shift
586 break
587 ;;
588 -*)
589 usage
590 ;;
591 *)
592 break
593 ;;
594 esac
595 shift
596 done
597 module_list "$@" |
599 while read mode sha1 stage sm_path
600 do
601 die_if_unmatched "$mode"
602 name=$(module_name "$sm_path") || exit
603 displaypath=$(relative_path "$sm_path")
605 # Copy url setting when it is not set yet
607 if test -z "$(git config "submodule.$name.url")"
608 then
609 url=$(git config -f .gitmodules submodule."$name".url)
610 test -z "$url" &&
611 die "$(eval_gettext "No url found for submodule path '\$displaypath' in .gitmodules")"
612 # Possibly a url relative to parent
614 case "$url" in
615 ./*|../*)
616 url=$(resolve_relative_url "$url") || exit
617 ;;
618 esac
619 git config submodule."$name".url "$url" ||
620 die "$(eval_gettext "Failed to register url for submodule path '\$displaypath'")"
621 say "$(eval_gettext "Submodule '\$name' (\$url) registered for path '\$displaypath'")"
623 fi
624 # Copy "update" setting when it is not set yet
626 if upd="$(git config -f .gitmodules submodule."$name".update)" &&
627 test -n "$upd" &&
628 test -z "$(git config submodule."$name".update)"
629 then
630 case "$upd" in
631 checkout | rebase | merge | none)
632 ;; # known modes of updating
633 *)
634 echo >&2 "warning: unknown update mode '$upd' suggested for submodule '$name'"
635 upd=none
636 ;;
637 esac
638 git config submodule."$name".update "$upd" ||
639 die "$(eval_gettext "Failed to register update mode for submodule path '\$displaypath'")"
640 fi
641 done
642}
643#
645# Unregister submodules from .git/config and remove their work tree
646#
647# $@ = requested paths (use '.' to deinit all submodules)
648#
649cmd_deinit()
650{
651 # parse $args after "submodule ... deinit".
652 while test $# -ne 0
653 do
654 case "$1" in
655 -f|--force)
656 force=$1
657 ;;
658 -q|--quiet)
659 GIT_QUIET=1
660 ;;
661 --)
662 shift
663 break
664 ;;
665 -*)
666 usage
667 ;;
668 *)
669 break
670 ;;
671 esac
672 shift
673 done
674 if test $# = 0
676 then
677 die "$(eval_gettext "Use '.' if you really want to deinitialize all submodules")"
678 fi
679 module_list "$@" |
681 while read mode sha1 stage sm_path
682 do
683 die_if_unmatched "$mode"
684 name=$(module_name "$sm_path") || exit
685 displaypath=$(relative_path "$sm_path")
687 # Remove the submodule work tree (unless the user already did it)
689 if test -d "$sm_path"
690 then
691 # Protect submodules containing a .git directory
692 if test -d "$sm_path/.git"
693 then
694 echo >&2 "$(eval_gettext "Submodule work tree '\$displaypath' contains a .git directory")"
695 die "$(eval_gettext "(use 'rm -rf' if you really want to remove it including all of its history)")"
696 fi
697 if test -z "$force"
699 then
700 git rm -qn "$sm_path" ||
701 die "$(eval_gettext "Submodule work tree '\$displaypath' contains local modifications; use '-f' to discard them")"
702 fi
703 rm -rf "$sm_path" &&
704 say "$(eval_gettext "Cleared directory '\$displaypath'")" ||
705 say "$(eval_gettext "Could not remove submodule work tree '\$displaypath'")"
706 fi
707 mkdir "$sm_path" || say "$(eval_gettext "Could not create empty submodule directory '\$displaypath'")"
709 # Remove the .git/config entries (unless the user already did it)
711 if test -n "$(git config --get-regexp submodule."$name\.")"
712 then
713 # Remove the whole section so we have a clean state when
714 # the user later decides to init this submodule again
715 url=$(git config submodule."$name".url)
716 git config --remove-section submodule."$name" 2>/dev/null &&
717 say "$(eval_gettext "Submodule '\$name' (\$url) unregistered for path '\$displaypath'")"
718 fi
719 done
720}
721#
723# Update each submodule path to correct revision, using clone and checkout as needed
724#
725# $@ = requested paths (default to all)
726#
727cmd_update()
728{
729 # parse $args after "submodule ... update".
730 while test $# -ne 0
731 do
732 case "$1" in
733 -q|--quiet)
734 GIT_QUIET=1
735 ;;
736 -i|--init)
737 init=1
738 ;;
739 --remote)
740 remote=1
741 ;;
742 -N|--no-fetch)
743 nofetch=1
744 ;;
745 -f|--force)
746 force=$1
747 ;;
748 -r|--rebase)
749 update="rebase"
750 ;;
751 --reference)
752 case "$2" in '') usage ;; esac
753 reference="--reference=$2"
754 shift
755 ;;
756 --reference=*)
757 reference="$1"
758 ;;
759 -m|--merge)
760 update="merge"
761 ;;
762 --recursive)
763 recursive=1
764 ;;
765 --checkout)
766 update="checkout"
767 ;;
768 --depth)
769 case "$2" in '') usage ;; esac
770 depth="--depth=$2"
771 shift
772 ;;
773 --depth=*)
774 depth=$1
775 ;;
776 --)
777 shift
778 break
779 ;;
780 -*)
781 usage
782 ;;
783 *)
784 break
785 ;;
786 esac
787 shift
788 done
789 if test -n "$init"
791 then
792 cmd_init "--" "$@" || return
793 fi
794 cloned_modules=
796 module_list "$@" | {
797 err=
798 while read mode sha1 stage sm_path
799 do
800 die_if_unmatched "$mode"
801 if test "$stage" = U
802 then
803 echo >&2 "Skipping unmerged submodule $prefix$sm_path"
804 continue
805 fi
806 name=$(module_name "$sm_path") || exit
807 url=$(git config submodule."$name".url)
808 branch=$(get_submodule_config "$name" branch master)
809 if ! test -z "$update"
810 then
811 update_module=$update
812 else
813 update_module=$(git config submodule."$name".update)
814 if test -z "$update_module"
815 then
816 update_module="checkout"
817 fi
818 fi
819 displaypath=$(relative_path "$prefix$sm_path")
821 if test "$update_module" = "none"
823 then
824 echo "Skipping submodule '$displaypath'"
825 continue
826 fi
827 if test -z "$url"
829 then
830 # Only mention uninitialized submodules when its
831 # path have been specified
832 test "$#" != "0" &&
833 say "$(eval_gettext "Submodule path '\$displaypath' not initialized
834Maybe you want to use 'update --init'?")"
835 continue
836 fi
837 if ! test -d "$sm_path"/.git -o -f "$sm_path"/.git
839 then
840 module_clone "$sm_path" "$name" "$url" "$reference" "$depth" || exit
841 cloned_modules="$cloned_modules;$name"
842 subsha1=
843 else
844 subsha1=$(clear_local_git_env; cd "$sm_path" &&
845 git rev-parse --verify HEAD) ||
846 die "$(eval_gettext "Unable to find current revision in submodule path '\$displaypath'")"
847 fi
848 if test -n "$remote"
850 then
851 if test -z "$nofetch"
852 then
853 # Fetch remote before determining tracking $sha1
854 (clear_local_git_env; cd "$sm_path" && git-fetch) ||
855 die "$(eval_gettext "Unable to fetch in submodule path '\$sm_path'")"
856 fi
857 remote_name=$(clear_local_git_env; cd "$sm_path" && get_default_remote)
858 sha1=$(clear_local_git_env; cd "$sm_path" &&
859 git rev-parse --verify "${remote_name}/${branch}") ||
860 die "$(eval_gettext "Unable to find current ${remote_name}/${branch} revision in submodule path '\$sm_path'")"
861 fi
862 if test "$subsha1" != "$sha1" -o -n "$force"
864 then
865 subforce=$force
866 # If we don't already have a -f flag and the submodule has never been checked out
867 if test -z "$subsha1" -a -z "$force"
868 then
869 subforce="-f"
870 fi
871 if test -z "$nofetch"
873 then
874 # Run fetch only if $sha1 isn't present or it
875 # is not reachable from a ref.
876 (clear_local_git_env; cd "$sm_path" &&
877 ( (rev=$(git rev-list -n 1 $sha1 --not --all 2>/dev/null) &&
878 test -z "$rev") || git-fetch)) ||
879 die "$(eval_gettext "Unable to fetch in submodule path '\$displaypath'")"
880 fi
881 # Is this something we just cloned?
883 case ";$cloned_modules;" in
884 *";$name;"*)
885 # then there is no local change to integrate
886 update_module=checkout ;;
887 esac
888 must_die_on_failure=
890 case "$update_module" in
891 checkout)
892 command="git checkout $subforce -q"
893 die_msg="$(eval_gettext "Unable to checkout '\$sha1' in submodule path '\$displaypath'")"
894 say_msg="$(eval_gettext "Submodule path '\$displaypath': checked out '\$sha1'")"
895 ;;
896 rebase)
897 command="git rebase"
898 die_msg="$(eval_gettext "Unable to rebase '\$sha1' in submodule path '\$displaypath'")"
899 say_msg="$(eval_gettext "Submodule path '\$displaypath': rebased into '\$sha1'")"
900 must_die_on_failure=yes
901 ;;
902 merge)
903 command="git merge"
904 die_msg="$(eval_gettext "Unable to merge '\$sha1' in submodule path '\$displaypath'")"
905 say_msg="$(eval_gettext "Submodule path '\$displaypath': merged in '\$sha1'")"
906 must_die_on_failure=yes
907 ;;
908 !*)
909 command="${update_module#!}"
910 die_msg="$(eval_gettext "Execution of '\$command \$sha1' failed in submodule path '\$prefix\$sm_path'")"
911 say_msg="$(eval_gettext "Submodule path '\$prefix\$sm_path': '\$command \$sha1'")"
912 must_die_on_failure=yes
913 ;;
914 *)
915 die "$(eval_gettext "Invalid update mode '$update_module' for submodule '$name'")"
916 esac
917 if (clear_local_git_env; cd "$sm_path" && $command "$sha1")
919 then
920 say "$say_msg"
921 elif test -n "$must_die_on_failure"
922 then
923 die_with_status 2 "$die_msg"
924 else
925 err="${err};$die_msg"
926 continue
927 fi
928 fi
929 if test -n "$recursive"
931 then
932 (
933 prefix="$prefix$sm_path/"
934 clear_local_git_env
935 cd "$sm_path" &&
936 eval cmd_update
937 )
938 res=$?
939 if test $res -gt 0
940 then
941 die_msg="$(eval_gettext "Failed to recurse into submodule path '\$displaypath'")"
942 if test $res -eq 1
943 then
944 err="${err};$die_msg"
945 continue
946 else
947 die_with_status $res "$die_msg"
948 fi
949 fi
950 fi
951 done
952 if test -n "$err"
954 then
955 OIFS=$IFS
956 IFS=';'
957 for e in $err
958 do
959 if test -n "$e"
960 then
961 echo >&2 "$e"
962 fi
963 done
964 IFS=$OIFS
965 exit 1
966 fi
967 }
968}
969set_name_rev () {
971 revname=$( (
972 clear_local_git_env
973 cd "$1" && {
974 git describe "$2" 2>/dev/null ||
975 git describe --tags "$2" 2>/dev/null ||
976 git describe --contains "$2" 2>/dev/null ||
977 git describe --all --always "$2"
978 }
979 ) )
980 test -z "$revname" || revname=" ($revname)"
981}
982#
983# Show commit summary for submodules in index or working tree
984#
985# If '--cached' is given, show summary between index and given commit,
986# or between working tree and given commit
987#
988# $@ = [commit (default 'HEAD'),] requested paths (default all)
989#
990cmd_summary() {
991 summary_limit=-1
992 for_status=
993 diff_cmd=diff-index
994 # parse $args after "submodule ... summary".
996 while test $# -ne 0
997 do
998 case "$1" in
999 --cached)
1000 cached="$1"
1001 ;;
1002 --files)
1003 files="$1"
1004 ;;
1005 --for-status)
1006 for_status="$1"
1007 ;;
1008 -n|--summary-limit)
1009 summary_limit="$2"
1010 isnumber "$summary_limit" || usage
1011 shift
1012 ;;
1013 --summary-limit=*)
1014 summary_limit="${1#--summary-limit=}"
1015 isnumber "$summary_limit" || usage
1016 ;;
1017 --)
1018 shift
1019 break
1020 ;;
1021 -*)
1022 usage
1023 ;;
1024 *)
1025 break
1026 ;;
1027 esac
1028 shift
1029 done
1030 test $summary_limit = 0 && return
1032 if rev=$(git rev-parse -q --verify --default HEAD ${1+"$1"})
1034 then
1035 head=$rev
1036 test $# = 0 || shift
1037 elif test -z "$1" -o "$1" = "HEAD"
1038 then
1039 # before the first commit: compare with an empty tree
1040 head=$(git hash-object -w -t tree --stdin </dev/null)
1041 test -z "$1" || shift
1042 else
1043 head="HEAD"
1044 fi
1045 if [ -n "$files" ]
1047 then
1048 test -n "$cached" &&
1049 die "$(gettext "The --cached option cannot be used with the --files option")"
1050 diff_cmd=diff-files
1051 head=
1052 fi
1053 cd_to_toplevel
1055 eval "set $(git rev-parse --sq --prefix "$wt_prefix" -- "$@")"
1056 # Get modified modules cared by user
1057 modules=$(git $diff_cmd $cached --ignore-submodules=dirty --raw $head -- "$@" |
1058 sane_egrep '^:([0-7]* )?160000' |
1059 while read mod_src mod_dst sha1_src sha1_dst status sm_path
1060 do
1061 # Always show modules deleted or type-changed (blob<->module)
1062 test $status = D -o $status = T && echo "$sm_path" && continue
1063 # Respect the ignore setting for --for-status.
1064 if test -n "$for_status"
1065 then
1066 name=$(module_name "$sm_path")
1067 ignore_config=$(get_submodule_config "$name" ignore none)
1068 test $status != A -a $ignore_config = all && continue
1069 fi
1070 # Also show added or modified modules which are checked out
1071 GIT_DIR="$sm_path/.git" git-rev-parse --git-dir >/dev/null 2>&1 &&
1072 echo "$sm_path"
1073 done
1074 )
1075 test -z "$modules" && return
1077 git $diff_cmd $cached --ignore-submodules=dirty --raw $head -- $modules |
1079 sane_egrep '^:([0-7]* )?160000' |
1080 cut -c2- |
1081 while read mod_src mod_dst sha1_src sha1_dst status name
1082 do
1083 if test -z "$cached" &&
1084 test $sha1_dst = 0000000000000000000000000000000000000000
1085 then
1086 case "$mod_dst" in
1087 160000)
1088 sha1_dst=$(GIT_DIR="$name/.git" git rev-parse HEAD)
1089 ;;
1090 100644 | 100755 | 120000)
1091 sha1_dst=$(git hash-object $name)
1092 ;;
1093 000000)
1094 ;; # removed
1095 *)
1096 # unexpected type
1097 eval_gettextln "unexpected mode \$mod_dst" >&2
1098 continue ;;
1099 esac
1100 fi
1101 missing_src=
1102 missing_dst=
1103 test $mod_src = 160000 &&
1105 ! GIT_DIR="$name/.git" git-rev-parse -q --verify $sha1_src^0 >/dev/null &&
1106 missing_src=t
1107 test $mod_dst = 160000 &&
1109 ! GIT_DIR="$name/.git" git-rev-parse -q --verify $sha1_dst^0 >/dev/null &&
1110 missing_dst=t
1111 display_name=$(relative_path "$name")
1113 total_commits=
1115 case "$missing_src,$missing_dst" in
1116 t,)
1117 errmsg="$(eval_gettext " Warn: \$display_name doesn't contain commit \$sha1_src")"
1118 ;;
1119 ,t)
1120 errmsg="$(eval_gettext " Warn: \$display_name doesn't contain commit \$sha1_dst")"
1121 ;;
1122 t,t)
1123 errmsg="$(eval_gettext " Warn: \$display_name doesn't contain commits \$sha1_src and \$sha1_dst")"
1124 ;;
1125 *)
1126 errmsg=
1127 total_commits=$(
1128 if test $mod_src = 160000 -a $mod_dst = 160000
1129 then
1130 range="$sha1_src...$sha1_dst"
1131 elif test $mod_src = 160000
1132 then
1133 range=$sha1_src
1134 else
1135 range=$sha1_dst
1136 fi
1137 GIT_DIR="$name/.git" \
1138 git rev-list --first-parent $range -- | wc -l
1139 )
1140 total_commits=" ($(($total_commits + 0)))"
1141 ;;
1142 esac
1143 sha1_abbr_src=$(echo $sha1_src | cut -c1-7)
1145 sha1_abbr_dst=$(echo $sha1_dst | cut -c1-7)
1146 if test $status = T
1147 then
1148 blob="$(gettext "blob")"
1149 submodule="$(gettext "submodule")"
1150 if test $mod_dst = 160000
1151 then
1152 echo "* $display_name $sha1_abbr_src($blob)->$sha1_abbr_dst($submodule)$total_commits:"
1153 else
1154 echo "* $display_name $sha1_abbr_src($submodule)->$sha1_abbr_dst($blob)$total_commits:"
1155 fi
1156 else
1157 echo "* $display_name $sha1_abbr_src...$sha1_abbr_dst$total_commits:"
1158 fi
1159 if test -n "$errmsg"
1160 then
1161 # Don't give error msg for modification whose dst is not submodule
1162 # i.e. deleted or changed to blob
1163 test $mod_dst = 160000 && echo "$errmsg"
1164 else
1165 if test $mod_src = 160000 -a $mod_dst = 160000
1166 then
1167 limit=
1168 test $summary_limit -gt 0 && limit="-$summary_limit"
1169 GIT_DIR="$name/.git" \
1170 git log $limit --pretty='format: %m %s' \
1171 --first-parent $sha1_src...$sha1_dst
1172 elif test $mod_dst = 160000
1173 then
1174 GIT_DIR="$name/.git" \
1175 git log --pretty='format: > %s' -1 $sha1_dst
1176 else
1177 GIT_DIR="$name/.git" \
1178 git log --pretty='format: < %s' -1 $sha1_src
1179 fi
1180 echo
1181 fi
1182 echo
1183 done
1184}
1185#
1186# List all submodules, prefixed with:
1187# - submodule not initialized
1188# + different revision checked out
1189#
1190# If --cached was specified the revision in the index will be printed
1191# instead of the currently checked out revision.
1192#
1193# $@ = requested paths (default to all)
1194#
1195cmd_status()
1196{
1197 # parse $args after "submodule ... status".
1198 while test $# -ne 0
1199 do
1200 case "$1" in
1201 -q|--quiet)
1202 GIT_QUIET=1
1203 ;;
1204 --cached)
1205 cached=1
1206 ;;
1207 --recursive)
1208 recursive=1
1209 ;;
1210 --)
1211 shift
1212 break
1213 ;;
1214 -*)
1215 usage
1216 ;;
1217 *)
1218 break
1219 ;;
1220 esac
1221 shift
1222 done
1223 module_list "$@" |
1225 while read mode sha1 stage sm_path
1226 do
1227 die_if_unmatched "$mode"
1228 name=$(module_name "$sm_path") || exit
1229 url=$(git config submodule."$name".url)
1230 displaypath=$(relative_path "$prefix$sm_path")
1231 if test "$stage" = U
1232 then
1233 say "U$sha1 $displaypath"
1234 continue
1235 fi
1236 if test -z "$url" || ! test -d "$sm_path"/.git -o -f "$sm_path"/.git
1237 then
1238 say "-$sha1 $displaypath"
1239 continue;
1240 fi
1241 if git diff-files --ignore-submodules=dirty --quiet -- "$sm_path"
1242 then
1243 set_name_rev "$sm_path" "$sha1"
1244 say " $sha1 $displaypath$revname"
1245 else
1246 if test -z "$cached"
1247 then
1248 sha1=$(clear_local_git_env; cd "$sm_path" && git rev-parse --verify HEAD)
1249 fi
1250 set_name_rev "$sm_path" "$sha1"
1251 say "+$sha1 $displaypath$revname"
1252 fi
1253 if test -n "$recursive"
1255 then
1256 (
1257 prefix="$displaypath/"
1258 clear_local_git_env
1259 cd "$sm_path" &&
1260 eval cmd_status
1261 ) ||
1262 die "$(eval_gettext "Failed to recurse into submodule path '\$sm_path'")"
1263 fi
1264 done
1265}
1266#
1267# Sync remote urls for submodules
1268# This makes the value for remote.$remote.url match the value
1269# specified in .gitmodules.
1270#
1271cmd_sync()
1272{
1273 while test $# -ne 0
1274 do
1275 case "$1" in
1276 -q|--quiet)
1277 GIT_QUIET=1
1278 shift
1279 ;;
1280 --recursive)
1281 recursive=1
1282 shift
1283 ;;
1284 --)
1285 shift
1286 break
1287 ;;
1288 -*)
1289 usage
1290 ;;
1291 *)
1292 break
1293 ;;
1294 esac
1295 done
1296 cd_to_toplevel
1297 module_list "$@" |
1298 while read mode sha1 stage sm_path
1299 do
1300 die_if_unmatched "$mode"
1301 name=$(module_name "$sm_path")
1302 url=$(git config -f .gitmodules --get submodule."$name".url)
1303 # Possibly a url relative to parent
1305 case "$url" in
1306 ./*|../*)
1307 # rewrite foo/bar as ../.. to find path from
1308 # submodule work tree to superproject work tree
1309 up_path="$(echo "$sm_path" | sed "s/[^/][^/]*/../g")" &&
1310 # guarantee a trailing /
1311 up_path=${up_path%/}/ &&
1312 # path from submodule work tree to submodule origin repo
1313 sub_origin_url=$(resolve_relative_url "$url" "$up_path") &&
1314 # path from superproject work tree to submodule origin repo
1315 super_config_url=$(resolve_relative_url "$url") || exit
1316 ;;
1317 *)
1318 sub_origin_url="$url"
1319 super_config_url="$url"
1320 ;;
1321 esac
1322 if git config "submodule.$name.url" >/dev/null 2>/dev/null
1324 then
1325 displaypath=$(relative_path "$prefix$sm_path")
1326 say "$(eval_gettext "Synchronizing submodule url for '\$displaypath'")"
1327 git config submodule."$name".url "$super_config_url"
1328 if test -e "$sm_path"/.git
1330 then
1331 (
1332 clear_local_git_env
1333 cd "$sm_path"
1334 remote=$(get_default_remote)
1335 git config remote."$remote".url "$sub_origin_url"
1336 if test -n "$recursive"
1338 then
1339 prefix="$prefix$sm_path/"
1340 eval cmd_sync
1341 fi
1342 )
1343 fi
1344 fi
1345 done
1346}
1347# This loop parses the command line arguments to find the
1349# subcommand name to dispatch. Parsing of the subcommand specific
1350# options are primarily done by the subcommand implementations.
1351# Subcommand specific options such as --branch and --cached are
1352# parsed here as well, for backward compatibility.
1353while test $# != 0 && test -z "$command"
1355do
1356 case "$1" in
1357 add | foreach | init | deinit | update | status | summary | sync)
1358 command=$1
1359 ;;
1360 -q|--quiet)
1361 GIT_QUIET=1
1362 ;;
1363 -b|--branch)
1364 case "$2" in
1365 '')
1366 usage
1367 ;;
1368 esac
1369 branch="$2"; shift
1370 ;;
1371 --cached)
1372 cached="$1"
1373 ;;
1374 --)
1375 break
1376 ;;
1377 -*)
1378 usage
1379 ;;
1380 *)
1381 break
1382 ;;
1383 esac
1384 shift
1385done
1386# No command word defaults to "status"
1388if test -z "$command"
1389then
1390 if test $# = 0
1391 then
1392 command=status
1393 else
1394 usage
1395 fi
1396fi
1397# "-b branch" is accepted only by "add"
1399if test -n "$branch" && test "$command" != add
1400then
1401 usage
1402fi
1403# "--cached" is accepted only by "status" and "summary"
1405if test -n "$cached" && test "$command" != status -a "$command" != summary
1406then
1407 usage
1408fi
1409"cmd_$command" "$@"