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] [--rebase] [--reference <repository>] [--merge] [--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# Prior to calling, cmd_update checks that a possibly existing
245# path is not a git repository.
246# Likewise, cmd_add checks that path does not exist at all,
247# since it is the location of a new submodule.
248#
249module_clone()
250{
251 sm_path=$1
252 name=$2
253 url=$3
254 reference="$4"
255 depth="$5"
256 quiet=
257 if test -n "$GIT_QUIET"
258 then
259 quiet=-q
260 fi
261 gitdir=
263 gitdir_base=
264 base_name=$(dirname "$name")
265 gitdir=$(git rev-parse --git-dir)
267 gitdir_base="$gitdir/modules/$base_name"
268 gitdir="$gitdir/modules/$name"
269 if test -d "$gitdir"
271 then
272 mkdir -p "$sm_path"
273 rm -f "$gitdir/index"
274 else
275 mkdir -p "$gitdir_base"
276 (
277 clear_local_git_env
278 git clone $quiet ${depth:+"$depth"} -n ${reference:+"$reference"} \
279 --separate-git-dir "$gitdir" "$url" "$sm_path"
280 ) ||
281 die "$(eval_gettext "Clone of '\$url' into submodule path '\$sm_path' failed")"
282 fi
283 # We already are at the root of the work tree but cd_to_toplevel will
285 # resolve any symlinks that might be present in $PWD
286 a=$(cd_to_toplevel && cd "$gitdir" && pwd)/
287 b=$(cd_to_toplevel && cd "$sm_path" && pwd)/
288 # normalize Windows-style absolute paths to POSIX-style absolute paths
289 case $a in [a-zA-Z]:/*) a=/${a%%:*}${a#*:} ;; esac
290 case $b in [a-zA-Z]:/*) b=/${b%%:*}${b#*:} ;; esac
291 # Remove all common leading directories after a sanity check
292 if test "${a#$b}" != "$a" || test "${b#$a}" != "$b"; then
293 die "$(eval_gettext "Gitdir '\$a' is part of the submodule path '\$b' or vice versa")"
294 fi
295 while test "${a%%/*}" = "${b%%/*}"
296 do
297 a=${a#*/}
298 b=${b#*/}
299 done
300 # Now chop off the trailing '/'s that were added in the beginning
301 a=${a%/}
302 b=${b%/}
303 # Turn each leading "*/" component into "../"
305 rel=$(echo $b | sed -e 's|[^/][^/]*|..|g')
306 echo "gitdir: $rel/$a" >"$sm_path/.git"
307 rel=$(echo $a | sed -e 's|[^/][^/]*|..|g')
309 (clear_local_git_env; cd "$sm_path" && GIT_WORK_TREE=. git config core.worktree "$rel/$b")
310}
311isnumber()
313{
314 n=$(($1 + 0)) 2>/dev/null && test "$n" = "$1"
315}
316#
318# Add a new submodule to the working tree, .gitmodules and the index
319#
320# $@ = repo path
321#
322# optional branch is stored in global branch variable
323#
324cmd_add()
325{
326 # parse $args after "submodule ... add".
327 reference_path=
328 while test $# -ne 0
329 do
330 case "$1" in
331 -b | --branch)
332 case "$2" in '') usage ;; esac
333 branch=$2
334 shift
335 ;;
336 -f | --force)
337 force=$1
338 ;;
339 -q|--quiet)
340 GIT_QUIET=1
341 ;;
342 --reference)
343 case "$2" in '') usage ;; esac
344 reference_path=$2
345 shift
346 ;;
347 --reference=*)
348 reference_path="${1#--reference=}"
349 ;;
350 --name)
351 case "$2" in '') usage ;; esac
352 custom_name=$2
353 shift
354 ;;
355 --depth)
356 case "$2" in '') usage ;; esac
357 depth="--depth=$2"
358 shift
359 ;;
360 --depth=*)
361 depth=$1
362 ;;
363 --)
364 shift
365 break
366 ;;
367 -*)
368 usage
369 ;;
370 *)
371 break
372 ;;
373 esac
374 shift
375 done
376 if test -n "$reference_path"
378 then
379 is_absolute_path "$reference_path" ||
380 reference_path="$wt_prefix$reference_path"
381 reference="--reference=$reference_path"
383 fi
384 repo=$1
386 sm_path=$2
387 if test -z "$sm_path"; then
389 sm_path=$(echo "$repo" |
390 sed -e 's|/$||' -e 's|:*/*\.git$||' -e 's|.*[/:]||g')
391 fi
392 if test -z "$repo" -o -z "$sm_path"; then
394 usage
395 fi
396 is_absolute_path "$sm_path" || sm_path="$wt_prefix$sm_path"
398 # assure repo is absolute or relative to parent
400 case "$repo" in
401 ./*|../*)
402 test -z "$wt_prefix" ||
403 die "$(gettext "Relative path can only be used from the toplevel of the working tree")"
404 # dereference source url relative to parent's url
406 realrepo=$(resolve_relative_url "$repo") || exit
407 ;;
408 *:*|/*)
409 # absolute url
410 realrepo=$repo
411 ;;
412 *)
413 die "$(eval_gettext "repo URL: '\$repo' must be absolute or begin with ./|../")"
414 ;;
415 esac
416 # normalize path:
418 # multiple //; leading ./; /./; /../; trailing /
419 sm_path=$(printf '%s/\n' "$sm_path" |
420 sed -e '
421 s|//*|/|g
422 s|^\(\./\)*||
423 s|/\./|/|g
424 :start
425 s|\([^/]*\)/\.\./||
426 tstart
427 s|/*$||
428 ')
429 git ls-files --error-unmatch "$sm_path" > /dev/null 2>&1 &&
430 die "$(eval_gettext "'\$sm_path' already exists in the index")"
431 if test -z "$force" && ! git add --dry-run --ignore-missing "$sm_path" > /dev/null 2>&1
433 then
434 eval_gettextln "The following path is ignored by one of your .gitignore files:
435\$sm_path
436Use -f if you really want to add it." >&2
437 exit 1
438 fi
439 if test -n "$custom_name"
441 then
442 sm_name="$custom_name"
443 else
444 sm_name="$sm_path"
445 fi
446 # perhaps the path exists and is already a git repo, else clone it
448 if test -e "$sm_path"
449 then
450 if test -d "$sm_path"/.git -o -f "$sm_path"/.git
451 then
452 eval_gettextln "Adding existing repo at '\$sm_path' to the index"
453 else
454 die "$(eval_gettext "'\$sm_path' already exists and is not a valid git repo")"
455 fi
456 else
458 if test -d ".git/modules/$sm_name"
459 then
460 if test -z "$force"
461 then
462 echo >&2 "$(eval_gettext "A git directory for '\$sm_name' is found locally with remote(s):")"
463 GIT_DIR=".git/modules/$sm_name" GIT_WORK_TREE=. git remote -v | grep '(fetch)' | sed -e s,^," ", -e s,' (fetch)',, >&2
464 echo >&2 "$(eval_gettext "If you want to reuse this local git directory instead of cloning again from")"
465 echo >&2 " $realrepo"
466 echo >&2 "$(eval_gettext "use the '--force' option. If the local git directory is not the correct repo")"
467 die "$(eval_gettext "or you are unsure what this means choose another name with the '--name' option.")"
468 else
469 echo "$(eval_gettext "Reactivating local git directory for submodule '\$sm_name'.")"
470 fi
471 fi
472 module_clone "$sm_path" "$sm_name" "$realrepo" "$reference" "$depth" || exit
473 (
474 clear_local_git_env
475 cd "$sm_path" &&
476 # ash fails to wordsplit ${branch:+-b "$branch"...}
477 case "$branch" in
478 '') git checkout -f -q ;;
479 ?*) git checkout -f -q -B "$branch" "origin/$branch" ;;
480 esac
481 ) || die "$(eval_gettext "Unable to checkout submodule '\$sm_path'")"
482 fi
483 git config submodule."$sm_name".url "$realrepo"
484 git add $force "$sm_path" ||
486 die "$(eval_gettext "Failed to add submodule '\$sm_path'")"
487 git config -f .gitmodules submodule."$sm_name".path "$sm_path" &&
489 git config -f .gitmodules submodule."$sm_name".url "$repo" &&
490 if test -n "$branch"
491 then
492 git config -f .gitmodules submodule."$sm_name".branch "$branch"
493 fi &&
494 git add --force .gitmodules ||
495 die "$(eval_gettext "Failed to register submodule '\$sm_path'")"
496}
497#
499# Execute an arbitrary command sequence in each checked out
500# submodule
501#
502# $@ = command to execute
503#
504cmd_foreach()
505{
506 # parse $args after "submodule ... foreach".
507 while test $# -ne 0
508 do
509 case "$1" in
510 -q|--quiet)
511 GIT_QUIET=1
512 ;;
513 --recursive)
514 recursive=1
515 ;;
516 -*)
517 usage
518 ;;
519 *)
520 break
521 ;;
522 esac
523 shift
524 done
525 toplevel=$(pwd)
527 # dup stdin so that it can be restored when running the external
529 # command in the subshell (and a recursive call to this function)
530 exec 3<&0
531 module_list |
533 while read mode sha1 stage sm_path
534 do
535 die_if_unmatched "$mode"
536 if test -e "$sm_path"/.git
537 then
538 displaypath=$(relative_path "$sm_path")
539 say "$(eval_gettext "Entering '\$prefix\$displaypath'")"
540 name=$(module_name "$sm_path")
541 (
542 prefix="$prefix$sm_path/"
543 clear_local_git_env
544 cd "$sm_path" &&
545 sm_path=$(relative_path "$sm_path") &&
546 # we make $path available to scripts ...
547 path=$sm_path &&
548 eval "$@" &&
549 if test -n "$recursive"
550 then
551 cmd_foreach "--recursive" "$@"
552 fi
553 ) <&3 3<&- ||
554 die "$(eval_gettext "Stopping at '\$prefix\$displaypath'; script returned non-zero status.")"
555 fi
556 done
557}
558#
560# Register submodules in .git/config
561#
562# $@ = requested paths (default to all)
563#
564cmd_init()
565{
566 # parse $args after "submodule ... init".
567 while test $# -ne 0
568 do
569 case "$1" in
570 -q|--quiet)
571 GIT_QUIET=1
572 ;;
573 --)
574 shift
575 break
576 ;;
577 -*)
578 usage
579 ;;
580 *)
581 break
582 ;;
583 esac
584 shift
585 done
586 module_list "$@" |
588 while read mode sha1 stage sm_path
589 do
590 die_if_unmatched "$mode"
591 name=$(module_name "$sm_path") || exit
592 displaypath=$(relative_path "$sm_path")
594 # Copy url setting when it is not set yet
596 if test -z "$(git config "submodule.$name.url")"
597 then
598 url=$(git config -f .gitmodules submodule."$name".url)
599 test -z "$url" &&
600 die "$(eval_gettext "No url found for submodule path '\$displaypath' in .gitmodules")"
601 # Possibly a url relative to parent
603 case "$url" in
604 ./*|../*)
605 url=$(resolve_relative_url "$url") || exit
606 ;;
607 esac
608 git config submodule."$name".url "$url" ||
609 die "$(eval_gettext "Failed to register url for submodule path '\$displaypath'")"
610 say "$(eval_gettext "Submodule '\$name' (\$url) registered for path '\$displaypath'")"
612 fi
613 # Copy "update" setting when it is not set yet
615 upd="$(git config -f .gitmodules submodule."$name".update)"
616 test -z "$upd" ||
617 test -n "$(git config submodule."$name".update)" ||
618 git config submodule."$name".update "$upd" ||
619 die "$(eval_gettext "Failed to register update mode for submodule path '\$displaypath'")"
620 done
621}
622#
624# Unregister submodules from .git/config and remove their work tree
625#
626# $@ = requested paths (use '.' to deinit all submodules)
627#
628cmd_deinit()
629{
630 # parse $args after "submodule ... deinit".
631 while test $# -ne 0
632 do
633 case "$1" in
634 -f|--force)
635 force=$1
636 ;;
637 -q|--quiet)
638 GIT_QUIET=1
639 ;;
640 --)
641 shift
642 break
643 ;;
644 -*)
645 usage
646 ;;
647 *)
648 break
649 ;;
650 esac
651 shift
652 done
653 if test $# = 0
655 then
656 die "$(eval_gettext "Use '.' if you really want to deinitialize all submodules")"
657 fi
658 module_list "$@" |
660 while read mode sha1 stage sm_path
661 do
662 die_if_unmatched "$mode"
663 name=$(module_name "$sm_path") || exit
664 displaypath=$(relative_path "$sm_path")
666 # Remove the submodule work tree (unless the user already did it)
668 if test -d "$sm_path"
669 then
670 # Protect submodules containing a .git directory
671 if test -d "$sm_path/.git"
672 then
673 echo >&2 "$(eval_gettext "Submodule work tree '\$displaypath' contains a .git directory")"
674 die "$(eval_gettext "(use 'rm -rf' if you really want to remove it including all of its history)")"
675 fi
676 if test -z "$force"
678 then
679 git rm -qn "$sm_path" ||
680 die "$(eval_gettext "Submodule work tree '\$displaypath' contains local modifications; use '-f' to discard them")"
681 fi
682 rm -rf "$sm_path" &&
683 say "$(eval_gettext "Cleared directory '\$displaypath'")" ||
684 say "$(eval_gettext "Could not remove submodule work tree '\$displaypath'")"
685 fi
686 mkdir "$sm_path" || say "$(eval_gettext "Could not create empty submodule directory '\$displaypath'")"
688 # Remove the .git/config entries (unless the user already did it)
690 if test -n "$(git config --get-regexp submodule."$name\.")"
691 then
692 # Remove the whole section so we have a clean state when
693 # the user later decides to init this submodule again
694 url=$(git config submodule."$name".url)
695 git config --remove-section submodule."$name" 2>/dev/null &&
696 say "$(eval_gettext "Submodule '\$name' (\$url) unregistered for path '\$displaypath'")"
697 fi
698 done
699}
700#
702# Update each submodule path to correct revision, using clone and checkout as needed
703#
704# $@ = requested paths (default to all)
705#
706cmd_update()
707{
708 # parse $args after "submodule ... update".
709 orig_flags=
710 while test $# -ne 0
711 do
712 case "$1" in
713 -q|--quiet)
714 GIT_QUIET=1
715 ;;
716 -i|--init)
717 init=1
718 ;;
719 --remote)
720 remote=1
721 ;;
722 -N|--no-fetch)
723 nofetch=1
724 ;;
725 -f|--force)
726 force=$1
727 ;;
728 -r|--rebase)
729 update="rebase"
730 ;;
731 --reference)
732 case "$2" in '') usage ;; esac
733 reference="--reference=$2"
734 orig_flags="$orig_flags $(git rev-parse --sq-quote "$1")"
735 shift
736 ;;
737 --reference=*)
738 reference="$1"
739 ;;
740 -m|--merge)
741 update="merge"
742 ;;
743 --recursive)
744 recursive=1
745 ;;
746 --checkout)
747 update="checkout"
748 ;;
749 --depth)
750 case "$2" in '') usage ;; esac
751 depth="--depth=$2"
752 shift
753 ;;
754 --depth=*)
755 depth=$1
756 ;;
757 --)
758 shift
759 break
760 ;;
761 -*)
762 usage
763 ;;
764 *)
765 break
766 ;;
767 esac
768 orig_flags="$orig_flags $(git rev-parse --sq-quote "$1")"
769 shift
770 done
771 if test -n "$init"
773 then
774 cmd_init "--" "$@" || return
775 fi
776 cloned_modules=
778 module_list "$@" | {
779 err=
780 while read mode sha1 stage sm_path
781 do
782 die_if_unmatched "$mode"
783 if test "$stage" = U
784 then
785 echo >&2 "Skipping unmerged submodule $prefix$sm_path"
786 continue
787 fi
788 name=$(module_name "$sm_path") || exit
789 url=$(git config submodule."$name".url)
790 branch=$(get_submodule_config "$name" branch master)
791 if ! test -z "$update"
792 then
793 update_module=$update
794 else
795 update_module=$(git config submodule."$name".update)
796 fi
797 displaypath=$(relative_path "$prefix$sm_path")
799 if test "$update_module" = "none"
801 then
802 echo "Skipping submodule '$displaypath'"
803 continue
804 fi
805 if test -z "$url"
807 then
808 # Only mention uninitialized submodules when its
809 # path have been specified
810 test "$#" != "0" &&
811 say "$(eval_gettext "Submodule path '\$displaypath' not initialized
812Maybe you want to use 'update --init'?")"
813 continue
814 fi
815 if ! test -d "$sm_path"/.git -o -f "$sm_path"/.git
817 then
818 module_clone "$sm_path" "$name" "$url" "$reference" "$depth" || exit
819 cloned_modules="$cloned_modules;$name"
820 subsha1=
821 else
822 subsha1=$(clear_local_git_env; cd "$sm_path" &&
823 git rev-parse --verify HEAD) ||
824 die "$(eval_gettext "Unable to find current revision in submodule path '\$displaypath'")"
825 fi
826 if test -n "$remote"
828 then
829 if test -z "$nofetch"
830 then
831 # Fetch remote before determining tracking $sha1
832 (clear_local_git_env; cd "$sm_path" && git-fetch) ||
833 die "$(eval_gettext "Unable to fetch in submodule path '\$sm_path'")"
834 fi
835 remote_name=$(clear_local_git_env; cd "$sm_path" && get_default_remote)
836 sha1=$(clear_local_git_env; cd "$sm_path" &&
837 git rev-parse --verify "${remote_name}/${branch}") ||
838 die "$(eval_gettext "Unable to find current ${remote_name}/${branch} revision in submodule path '\$sm_path'")"
839 fi
840 if test "$subsha1" != "$sha1" -o -n "$force"
842 then
843 subforce=$force
844 # If we don't already have a -f flag and the submodule has never been checked out
845 if test -z "$subsha1" -a -z "$force"
846 then
847 subforce="-f"
848 fi
849 if test -z "$nofetch"
851 then
852 # Run fetch only if $sha1 isn't present or it
853 # is not reachable from a ref.
854 (clear_local_git_env; cd "$sm_path" &&
855 ( (rev=$(git rev-list -n 1 $sha1 --not --all 2>/dev/null) &&
856 test -z "$rev") || git-fetch)) ||
857 die "$(eval_gettext "Unable to fetch in submodule path '\$displaypath'")"
858 fi
859 # Is this something we just cloned?
861 case ";$cloned_modules;" in
862 *";$name;"*)
863 # then there is no local change to integrate
864 update_module= ;;
865 esac
866 must_die_on_failure=
868 case "$update_module" in
869 rebase)
870 command="git rebase"
871 die_msg="$(eval_gettext "Unable to rebase '\$sha1' in submodule path '\$displaypath'")"
872 say_msg="$(eval_gettext "Submodule path '\$displaypath': rebased into '\$sha1'")"
873 must_die_on_failure=yes
874 ;;
875 merge)
876 command="git merge"
877 die_msg="$(eval_gettext "Unable to merge '\$sha1' in submodule path '\$displaypath'")"
878 say_msg="$(eval_gettext "Submodule path '\$displaypath': merged in '\$sha1'")"
879 must_die_on_failure=yes
880 ;;
881 !*)
882 command="${update_module#!}"
883 die_msg="$(eval_gettext "Execution of '\$command \$sha1' failed in submodule path '\$prefix\$sm_path'")"
884 say_msg="$(eval_gettext "Submodule path '\$prefix\$sm_path': '\$command \$sha1'")"
885 must_die_on_failure=yes
886 ;;
887 *)
888 command="git checkout $subforce -q"
889 die_msg="$(eval_gettext "Unable to checkout '\$sha1' in submodule path '\$displaypath'")"
890 say_msg="$(eval_gettext "Submodule path '\$displaypath': checked out '\$sha1'")"
891 ;;
892 esac
893 if (clear_local_git_env; cd "$sm_path" && $command "$sha1")
895 then
896 say "$say_msg"
897 elif test -n "$must_die_on_failure"
898 then
899 die_with_status 2 "$die_msg"
900 else
901 err="${err};$die_msg"
902 continue
903 fi
904 fi
905 if test -n "$recursive"
907 then
908 (
909 prefix="$prefix$sm_path/"
910 clear_local_git_env
911 cd "$sm_path" &&
912 eval cmd_update "$orig_flags"
913 )
914 res=$?
915 if test $res -gt 0
916 then
917 die_msg="$(eval_gettext "Failed to recurse into submodule path '\$displaypath'")"
918 if test $res -eq 1
919 then
920 err="${err};$die_msg"
921 continue
922 else
923 die_with_status $res "$die_msg"
924 fi
925 fi
926 fi
927 done
928 if test -n "$err"
930 then
931 OIFS=$IFS
932 IFS=';'
933 for e in $err
934 do
935 if test -n "$e"
936 then
937 echo >&2 "$e"
938 fi
939 done
940 IFS=$OIFS
941 exit 1
942 fi
943 }
944}
945set_name_rev () {
947 revname=$( (
948 clear_local_git_env
949 cd "$1" && {
950 git describe "$2" 2>/dev/null ||
951 git describe --tags "$2" 2>/dev/null ||
952 git describe --contains "$2" 2>/dev/null ||
953 git describe --all --always "$2"
954 }
955 ) )
956 test -z "$revname" || revname=" ($revname)"
957}
958#
959# Show commit summary for submodules in index or working tree
960#
961# If '--cached' is given, show summary between index and given commit,
962# or between working tree and given commit
963#
964# $@ = [commit (default 'HEAD'),] requested paths (default all)
965#
966cmd_summary() {
967 summary_limit=-1
968 for_status=
969 diff_cmd=diff-index
970 # parse $args after "submodule ... summary".
972 while test $# -ne 0
973 do
974 case "$1" in
975 --cached)
976 cached="$1"
977 ;;
978 --files)
979 files="$1"
980 ;;
981 --for-status)
982 for_status="$1"
983 ;;
984 -n|--summary-limit)
985 summary_limit="$2"
986 isnumber "$summary_limit" || usage
987 shift
988 ;;
989 --summary-limit=*)
990 summary_limit="${1#--summary-limit=}"
991 isnumber "$summary_limit" || usage
992 ;;
993 --)
994 shift
995 break
996 ;;
997 -*)
998 usage
999 ;;
1000 *)
1001 break
1002 ;;
1003 esac
1004 shift
1005 done
1006 test $summary_limit = 0 && return
1008 if rev=$(git rev-parse -q --verify --default HEAD ${1+"$1"})
1010 then
1011 head=$rev
1012 test $# = 0 || shift
1013 elif test -z "$1" -o "$1" = "HEAD"
1014 then
1015 # before the first commit: compare with an empty tree
1016 head=$(git hash-object -w -t tree --stdin </dev/null)
1017 test -z "$1" || shift
1018 else
1019 head="HEAD"
1020 fi
1021 if [ -n "$files" ]
1023 then
1024 test -n "$cached" &&
1025 die "$(gettext "The --cached option cannot be used with the --files option")"
1026 diff_cmd=diff-files
1027 head=
1028 fi
1029 cd_to_toplevel
1031 eval "set $(git rev-parse --sq --prefix "$wt_prefix" -- "$@")"
1032 # Get modified modules cared by user
1033 modules=$(git $diff_cmd $cached --ignore-submodules=dirty --raw $head -- "$@" |
1034 sane_egrep '^:([0-7]* )?160000' |
1035 while read mod_src mod_dst sha1_src sha1_dst status name
1036 do
1037 # Always show modules deleted or type-changed (blob<->module)
1038 test $status = D -o $status = T && echo "$name" && continue
1039 # Also show added or modified modules which are checked out
1040 GIT_DIR="$name/.git" git-rev-parse --git-dir >/dev/null 2>&1 &&
1041 echo "$name"
1042 done
1043 )
1044 test -z "$modules" && return
1046 git $diff_cmd $cached --ignore-submodules=dirty --raw $head -- $modules |
1048 sane_egrep '^:([0-7]* )?160000' |
1049 cut -c2- |
1050 while read mod_src mod_dst sha1_src sha1_dst status name
1051 do
1052 if test -z "$cached" &&
1053 test $sha1_dst = 0000000000000000000000000000000000000000
1054 then
1055 case "$mod_dst" in
1056 160000)
1057 sha1_dst=$(GIT_DIR="$name/.git" git rev-parse HEAD)
1058 ;;
1059 100644 | 100755 | 120000)
1060 sha1_dst=$(git hash-object $name)
1061 ;;
1062 000000)
1063 ;; # removed
1064 *)
1065 # unexpected type
1066 eval_gettextln "unexpected mode \$mod_dst" >&2
1067 continue ;;
1068 esac
1069 fi
1070 missing_src=
1071 missing_dst=
1072 test $mod_src = 160000 &&
1074 ! GIT_DIR="$name/.git" git-rev-parse -q --verify $sha1_src^0 >/dev/null &&
1075 missing_src=t
1076 test $mod_dst = 160000 &&
1078 ! GIT_DIR="$name/.git" git-rev-parse -q --verify $sha1_dst^0 >/dev/null &&
1079 missing_dst=t
1080 display_name=$(relative_path "$name")
1082 total_commits=
1084 case "$missing_src,$missing_dst" in
1085 t,)
1086 errmsg="$(eval_gettext " Warn: \$display_name doesn't contain commit \$sha1_src")"
1087 ;;
1088 ,t)
1089 errmsg="$(eval_gettext " Warn: \$display_name doesn't contain commit \$sha1_dst")"
1090 ;;
1091 t,t)
1092 errmsg="$(eval_gettext " Warn: \$display_name doesn't contain commits \$sha1_src and \$sha1_dst")"
1093 ;;
1094 *)
1095 errmsg=
1096 total_commits=$(
1097 if test $mod_src = 160000 -a $mod_dst = 160000
1098 then
1099 range="$sha1_src...$sha1_dst"
1100 elif test $mod_src = 160000
1101 then
1102 range=$sha1_src
1103 else
1104 range=$sha1_dst
1105 fi
1106 GIT_DIR="$name/.git" \
1107 git rev-list --first-parent $range -- | wc -l
1108 )
1109 total_commits=" ($(($total_commits + 0)))"
1110 ;;
1111 esac
1112 sha1_abbr_src=$(echo $sha1_src | cut -c1-7)
1114 sha1_abbr_dst=$(echo $sha1_dst | cut -c1-7)
1115 if test $status = T
1116 then
1117 blob="$(gettext "blob")"
1118 submodule="$(gettext "submodule")"
1119 if test $mod_dst = 160000
1120 then
1121 echo "* $display_name $sha1_abbr_src($blob)->$sha1_abbr_dst($submodule)$total_commits:"
1122 else
1123 echo "* $display_name $sha1_abbr_src($submodule)->$sha1_abbr_dst($blob)$total_commits:"
1124 fi
1125 else
1126 echo "* $display_name $sha1_abbr_src...$sha1_abbr_dst$total_commits:"
1127 fi
1128 if test -n "$errmsg"
1129 then
1130 # Don't give error msg for modification whose dst is not submodule
1131 # i.e. deleted or changed to blob
1132 test $mod_dst = 160000 && echo "$errmsg"
1133 else
1134 if test $mod_src = 160000 -a $mod_dst = 160000
1135 then
1136 limit=
1137 test $summary_limit -gt 0 && limit="-$summary_limit"
1138 GIT_DIR="$name/.git" \
1139 git log $limit --pretty='format: %m %s' \
1140 --first-parent $sha1_src...$sha1_dst
1141 elif test $mod_dst = 160000
1142 then
1143 GIT_DIR="$name/.git" \
1144 git log --pretty='format: > %s' -1 $sha1_dst
1145 else
1146 GIT_DIR="$name/.git" \
1147 git log --pretty='format: < %s' -1 $sha1_src
1148 fi
1149 echo
1150 fi
1151 echo
1152 done |
1153 if test -n "$for_status"; then
1154 if [ -n "$files" ]; then
1155 gettextln "Submodules changed but not updated:" | git stripspace -c
1156 else
1157 gettextln "Submodule changes to be committed:" | git stripspace -c
1158 fi
1159 printf "\n" | git stripspace -c
1160 git stripspace -c
1161 else
1162 cat
1163 fi
1164}
1165#
1166# List all submodules, prefixed with:
1167# - submodule not initialized
1168# + different revision checked out
1169#
1170# If --cached was specified the revision in the index will be printed
1171# instead of the currently checked out revision.
1172#
1173# $@ = requested paths (default to all)
1174#
1175cmd_status()
1176{
1177 # parse $args after "submodule ... status".
1178 while test $# -ne 0
1179 do
1180 case "$1" in
1181 -q|--quiet)
1182 GIT_QUIET=1
1183 ;;
1184 --cached)
1185 cached=1
1186 ;;
1187 --recursive)
1188 recursive=1
1189 ;;
1190 --)
1191 shift
1192 break
1193 ;;
1194 -*)
1195 usage
1196 ;;
1197 *)
1198 break
1199 ;;
1200 esac
1201 shift
1202 done
1203 module_list "$@" |
1205 while read mode sha1 stage sm_path
1206 do
1207 die_if_unmatched "$mode"
1208 name=$(module_name "$sm_path") || exit
1209 url=$(git config submodule."$name".url)
1210 displaypath=$(relative_path "$prefix$sm_path")
1211 if test "$stage" = U
1212 then
1213 say "U$sha1 $displaypath"
1214 continue
1215 fi
1216 if test -z "$url" || ! test -d "$sm_path"/.git -o -f "$sm_path"/.git
1217 then
1218 say "-$sha1 $displaypath"
1219 continue;
1220 fi
1221 if git diff-files --ignore-submodules=dirty --quiet -- "$sm_path"
1222 then
1223 set_name_rev "$sm_path" "$sha1"
1224 say " $sha1 $displaypath$revname"
1225 else
1226 if test -z "$cached"
1227 then
1228 sha1=$(clear_local_git_env; cd "$sm_path" && git rev-parse --verify HEAD)
1229 fi
1230 set_name_rev "$sm_path" "$sha1"
1231 say "+$sha1 $displaypath$revname"
1232 fi
1233 if test -n "$recursive"
1235 then
1236 (
1237 prefix="$displaypath/"
1238 clear_local_git_env
1239 cd "$sm_path" &&
1240 eval cmd_status
1241 ) ||
1242 die "$(eval_gettext "Failed to recurse into submodule path '\$sm_path'")"
1243 fi
1244 done
1245}
1246#
1247# Sync remote urls for submodules
1248# This makes the value for remote.$remote.url match the value
1249# specified in .gitmodules.
1250#
1251cmd_sync()
1252{
1253 while test $# -ne 0
1254 do
1255 case "$1" in
1256 -q|--quiet)
1257 GIT_QUIET=1
1258 shift
1259 ;;
1260 --recursive)
1261 recursive=1
1262 shift
1263 ;;
1264 --)
1265 shift
1266 break
1267 ;;
1268 -*)
1269 usage
1270 ;;
1271 *)
1272 break
1273 ;;
1274 esac
1275 done
1276 cd_to_toplevel
1277 module_list "$@" |
1278 while read mode sha1 stage sm_path
1279 do
1280 die_if_unmatched "$mode"
1281 name=$(module_name "$sm_path")
1282 url=$(git config -f .gitmodules --get submodule."$name".url)
1283 # Possibly a url relative to parent
1285 case "$url" in
1286 ./*|../*)
1287 # rewrite foo/bar as ../.. to find path from
1288 # submodule work tree to superproject work tree
1289 up_path="$(echo "$sm_path" | sed "s/[^/][^/]*/../g")" &&
1290 # guarantee a trailing /
1291 up_path=${up_path%/}/ &&
1292 # path from submodule work tree to submodule origin repo
1293 sub_origin_url=$(resolve_relative_url "$url" "$up_path") &&
1294 # path from superproject work tree to submodule origin repo
1295 super_config_url=$(resolve_relative_url "$url") || exit
1296 ;;
1297 *)
1298 sub_origin_url="$url"
1299 super_config_url="$url"
1300 ;;
1301 esac
1302 if git config "submodule.$name.url" >/dev/null 2>/dev/null
1304 then
1305 displaypath=$(relative_path "$prefix$sm_path")
1306 say "$(eval_gettext "Synchronizing submodule url for '\$displaypath'")"
1307 git config submodule."$name".url "$super_config_url"
1308 if test -e "$sm_path"/.git
1310 then
1311 (
1312 clear_local_git_env
1313 cd "$sm_path"
1314 remote=$(get_default_remote)
1315 git config remote."$remote".url "$sub_origin_url"
1316 if test -n "$recursive"
1318 then
1319 prefix="$prefix$sm_path/"
1320 eval cmd_sync
1321 fi
1322 )
1323 fi
1324 fi
1325 done
1326}
1327# This loop parses the command line arguments to find the
1329# subcommand name to dispatch. Parsing of the subcommand specific
1330# options are primarily done by the subcommand implementations.
1331# Subcommand specific options such as --branch and --cached are
1332# parsed here as well, for backward compatibility.
1333while test $# != 0 && test -z "$command"
1335do
1336 case "$1" in
1337 add | foreach | init | deinit | update | status | summary | sync)
1338 command=$1
1339 ;;
1340 -q|--quiet)
1341 GIT_QUIET=1
1342 ;;
1343 -b|--branch)
1344 case "$2" in
1345 '')
1346 usage
1347 ;;
1348 esac
1349 branch="$2"; shift
1350 ;;
1351 --cached)
1352 cached="$1"
1353 ;;
1354 --)
1355 break
1356 ;;
1357 -*)
1358 usage
1359 ;;
1360 *)
1361 break
1362 ;;
1363 esac
1364 shift
1365done
1366# No command word defaults to "status"
1368if test -z "$command"
1369then
1370 if test $# = 0
1371 then
1372 command=status
1373 else
1374 usage
1375 fi
1376fi
1377# "-b branch" is accepted only by "add"
1379if test -n "$branch" && test "$command" != add
1380then
1381 usage
1382fi
1383# "--cached" is accepted only by "status" and "summary"
1385if test -n "$cached" && test "$command" != status -a "$command" != summary
1386then
1387 usage
1388fi
1389"cmd_$command" "$@"