t5500 & t7403: lose bash-ism "local"
[git/git.git] / git-submodule.sh
1 #!/bin/sh
2 #
3 # git-submodule.sh: add, init, update or list git submodules
4 #
5 # Copyright (c) 2007 Lars Hjemli
6
7 dashless=$(basename "$0" | sed -e 's/-/ /')
8 USAGE="[--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] (--all| [--] <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: $dashless [--quiet] sync [--recursive] [--] [<path>...]"
16 OPTIONS_SPEC=
17 SUBDIRECTORY_OK=Yes
18 . git-sh-setup
19 . git-sh-i18n
20 . git-parse-remote
21 require_work_tree
22 wt_prefix=$(git rev-parse --show-prefix)
23 cd_to_toplevel
24
25 # Restrict ourselves to a vanilla subset of protocols; the URLs
26 # we get are under control of a remote repository, and we do not
27 # want them kicking off arbitrary git-remote-* programs.
28 #
29 # If the user has already specified a set of allowed protocols,
30 # we assume they know what they're doing and use that instead.
31 : ${GIT_ALLOW_PROTOCOL=file:git:http:https:ssh}
32 export GIT_ALLOW_PROTOCOL
33
34 command=
35 branch=
36 force=
37 reference=
38 cached=
39 recursive=
40 init=
41 files=
42 remote=
43 nofetch=
44 update=
45 prefix=
46 custom_name=
47 depth=
48
49 # The function takes at most 2 arguments. The first argument is the
50 # URL that navigates to the submodule origin repo. When relative, this URL
51 # is relative to the superproject origin URL repo. The second up_path
52 # argument, if specified, is the relative path that navigates
53 # from the submodule working tree to the superproject working tree.
54 #
55 # The output of the function is the origin URL of the submodule.
56 #
57 # The output will either be an absolute URL or filesystem path (if the
58 # superproject origin URL is an absolute URL or filesystem path,
59 # respectively) or a relative file system path (if the superproject
60 # origin URL is a relative file system path).
61 #
62 # When the output is a relative file system path, the path is either
63 # relative to the submodule working tree, if up_path is specified, or to
64 # the superproject working tree otherwise.
65 resolve_relative_url ()
66 {
67 remote=$(get_default_remote)
68 remoteurl=$(git config "remote.$remote.url") ||
69 remoteurl=$(pwd) # the repository is its own authoritative upstream
70 url="$1"
71 remoteurl=${remoteurl%/}
72 sep=/
73 up_path="$2"
74
75 case "$remoteurl" in
76 *:*|/*)
77 is_relative=
78 ;;
79 ./*|../*)
80 is_relative=t
81 ;;
82 *)
83 is_relative=t
84 remoteurl="./$remoteurl"
85 ;;
86 esac
87
88 while test -n "$url"
89 do
90 case "$url" in
91 ../*)
92 url="${url#../}"
93 case "$remoteurl" in
94 */*)
95 remoteurl="${remoteurl%/*}"
96 ;;
97 *:*)
98 remoteurl="${remoteurl%:*}"
99 sep=:
100 ;;
101 *)
102 if test -z "$is_relative" || test "." = "$remoteurl"
103 then
104 die "$(eval_gettext "cannot strip one component off url '\$remoteurl'")"
105 else
106 remoteurl=.
107 fi
108 ;;
109 esac
110 ;;
111 ./*)
112 url="${url#./}"
113 ;;
114 *)
115 break;;
116 esac
117 done
118 remoteurl="$remoteurl$sep${url%/}"
119 echo "${is_relative:+${up_path}}${remoteurl#./}"
120 }
121
122 # Resolve a path to be relative to another path. This is intended for
123 # converting submodule paths when git-submodule is run in a subdirectory
124 # and only handles paths where the directory separator is '/'.
125 #
126 # The output is the first argument as a path relative to the second argument,
127 # which defaults to $wt_prefix if it is omitted.
128 relative_path ()
129 {
130 local target curdir result
131 target=$1
132 curdir=${2-$wt_prefix}
133 curdir=${curdir%/}
134 result=
135
136 while test -n "$curdir"
137 do
138 case "$target" in
139 "$curdir/"*)
140 target=${target#"$curdir"/}
141 break
142 ;;
143 esac
144
145 result="${result}../"
146 if test "$curdir" = "${curdir%/*}"
147 then
148 curdir=
149 else
150 curdir="${curdir%/*}"
151 fi
152 done
153
154 echo "$result$target"
155 }
156
157 die_if_unmatched ()
158 {
159 if test "$1" = "#unmatched"
160 then
161 exit 1
162 fi
163 }
164
165 #
166 # Print a submodule configuration setting
167 #
168 # $1 = submodule name
169 # $2 = option name
170 # $3 = default value
171 #
172 # Checks in the usual git-config places first (for overrides),
173 # otherwise it falls back on .gitmodules. This allows you to
174 # distribute project-wide defaults in .gitmodules, while still
175 # customizing individual repositories if necessary. If the option is
176 # not in .gitmodules either, print a default value.
177 #
178 get_submodule_config () {
179 name="$1"
180 option="$2"
181 default="$3"
182 value=$(git config submodule."$name"."$option")
183 if test -z "$value"
184 then
185 value=$(git config -f .gitmodules submodule."$name"."$option")
186 fi
187 printf '%s' "${value:-$default}"
188 }
189
190 isnumber()
191 {
192 n=$(($1 + 0)) 2>/dev/null && test "$n" = "$1"
193 }
194
195 #
196 # Add a new submodule to the working tree, .gitmodules and the index
197 #
198 # $@ = repo path
199 #
200 # optional branch is stored in global branch variable
201 #
202 cmd_add()
203 {
204 # parse $args after "submodule ... add".
205 reference_path=
206 while test $# -ne 0
207 do
208 case "$1" in
209 -b | --branch)
210 case "$2" in '') usage ;; esac
211 branch=$2
212 shift
213 ;;
214 -f | --force)
215 force=$1
216 ;;
217 -q|--quiet)
218 GIT_QUIET=1
219 ;;
220 --reference)
221 case "$2" in '') usage ;; esac
222 reference_path=$2
223 shift
224 ;;
225 --reference=*)
226 reference_path="${1#--reference=}"
227 ;;
228 --name)
229 case "$2" in '') usage ;; esac
230 custom_name=$2
231 shift
232 ;;
233 --depth)
234 case "$2" in '') usage ;; esac
235 depth="--depth=$2"
236 shift
237 ;;
238 --depth=*)
239 depth=$1
240 ;;
241 --)
242 shift
243 break
244 ;;
245 -*)
246 usage
247 ;;
248 *)
249 break
250 ;;
251 esac
252 shift
253 done
254
255 if test -n "$reference_path"
256 then
257 is_absolute_path "$reference_path" ||
258 reference_path="$wt_prefix$reference_path"
259
260 reference="--reference=$reference_path"
261 fi
262
263 repo=$1
264 sm_path=$2
265
266 if test -z "$sm_path"; then
267 sm_path=$(printf '%s\n' "$repo" |
268 sed -e 's|/$||' -e 's|:*/*\.git$||' -e 's|.*[/:]||g')
269 fi
270
271 if test -z "$repo" || test -z "$sm_path"; then
272 usage
273 fi
274
275 is_absolute_path "$sm_path" || sm_path="$wt_prefix$sm_path"
276
277 # assure repo is absolute or relative to parent
278 case "$repo" in
279 ./*|../*)
280 test -z "$wt_prefix" ||
281 die "$(gettext "Relative path can only be used from the toplevel of the working tree")"
282
283 # dereference source url relative to parent's url
284 realrepo=$(resolve_relative_url "$repo") || exit
285 ;;
286 *:*|/*)
287 # absolute url
288 realrepo=$repo
289 ;;
290 *)
291 die "$(eval_gettext "repo URL: '\$repo' must be absolute or begin with ./|../")"
292 ;;
293 esac
294
295 # normalize path:
296 # multiple //; leading ./; /./; /../; trailing /
297 sm_path=$(printf '%s/\n' "$sm_path" |
298 sed -e '
299 s|//*|/|g
300 s|^\(\./\)*||
301 s|/\(\./\)*|/|g
302 :start
303 s|\([^/]*\)/\.\./||
304 tstart
305 s|/*$||
306 ')
307 git ls-files --error-unmatch "$sm_path" > /dev/null 2>&1 &&
308 die "$(eval_gettext "'\$sm_path' already exists in the index")"
309
310 if test -z "$force" && ! git add --dry-run --ignore-missing "$sm_path" > /dev/null 2>&1
311 then
312 eval_gettextln "The following path is ignored by one of your .gitignore files:
313 \$sm_path
314 Use -f if you really want to add it." >&2
315 exit 1
316 fi
317
318 if test -n "$custom_name"
319 then
320 sm_name="$custom_name"
321 else
322 sm_name="$sm_path"
323 fi
324
325 # perhaps the path exists and is already a git repo, else clone it
326 if test -e "$sm_path"
327 then
328 if test -d "$sm_path"/.git || test -f "$sm_path"/.git
329 then
330 eval_gettextln "Adding existing repo at '\$sm_path' to the index"
331 else
332 die "$(eval_gettext "'\$sm_path' already exists and is not a valid git repo")"
333 fi
334
335 else
336 if test -d ".git/modules/$sm_name"
337 then
338 if test -z "$force"
339 then
340 echo >&2 "$(eval_gettext "A git directory for '\$sm_name' is found locally with remote(s):")"
341 GIT_DIR=".git/modules/$sm_name" GIT_WORK_TREE=. git remote -v | grep '(fetch)' | sed -e s,^," ", -e s,' (fetch)',, >&2
342 echo >&2 "$(eval_gettext "If you want to reuse this local git directory instead of cloning again from")"
343 echo >&2 " $realrepo"
344 echo >&2 "$(eval_gettext "use the '--force' option. If the local git directory is not the correct repo")"
345 die "$(eval_gettext "or you are unsure what this means choose another name with the '--name' option.")"
346 else
347 echo "$(eval_gettext "Reactivating local git directory for submodule '\$sm_name'.")"
348 fi
349 fi
350 git submodule--helper clone ${GIT_QUIET:+--quiet} --prefix "$wt_prefix" --path "$sm_path" --name "$sm_name" --url "$realrepo" "$reference" "$depth" || exit
351 (
352 clear_local_git_env
353 cd "$sm_path" &&
354 # ash fails to wordsplit ${branch:+-b "$branch"...}
355 case "$branch" in
356 '') git checkout -f -q ;;
357 ?*) git checkout -f -q -B "$branch" "origin/$branch" ;;
358 esac
359 ) || die "$(eval_gettext "Unable to checkout submodule '\$sm_path'")"
360 fi
361 git config submodule."$sm_name".url "$realrepo"
362
363 git add $force "$sm_path" ||
364 die "$(eval_gettext "Failed to add submodule '\$sm_path'")"
365
366 git config -f .gitmodules submodule."$sm_name".path "$sm_path" &&
367 git config -f .gitmodules submodule."$sm_name".url "$repo" &&
368 if test -n "$branch"
369 then
370 git config -f .gitmodules submodule."$sm_name".branch "$branch"
371 fi &&
372 git add --force .gitmodules ||
373 die "$(eval_gettext "Failed to register submodule '\$sm_path'")"
374 }
375
376 #
377 # Execute an arbitrary command sequence in each checked out
378 # submodule
379 #
380 # $@ = command to execute
381 #
382 cmd_foreach()
383 {
384 # parse $args after "submodule ... foreach".
385 while test $# -ne 0
386 do
387 case "$1" in
388 -q|--quiet)
389 GIT_QUIET=1
390 ;;
391 --recursive)
392 recursive=1
393 ;;
394 -*)
395 usage
396 ;;
397 *)
398 break
399 ;;
400 esac
401 shift
402 done
403
404 toplevel=$(pwd)
405
406 # dup stdin so that it can be restored when running the external
407 # command in the subshell (and a recursive call to this function)
408 exec 3<&0
409
410 git submodule--helper list --prefix "$wt_prefix"|
411 while read mode sha1 stage sm_path
412 do
413 die_if_unmatched "$mode"
414 if test -e "$sm_path"/.git
415 then
416 displaypath=$(relative_path "$prefix$sm_path")
417 say "$(eval_gettext "Entering '\$displaypath'")"
418 name=$(git submodule--helper name "$sm_path")
419 (
420 prefix="$prefix$sm_path/"
421 clear_local_git_env
422 cd "$sm_path" &&
423 sm_path=$(relative_path "$sm_path") &&
424 # we make $path available to scripts ...
425 path=$sm_path &&
426 if test $# -eq 1
427 then
428 eval "$1"
429 else
430 "$@"
431 fi &&
432 if test -n "$recursive"
433 then
434 cmd_foreach "--recursive" "$@"
435 fi
436 ) <&3 3<&- ||
437 die "$(eval_gettext "Stopping at '\$displaypath'; script returned non-zero status.")"
438 fi
439 done
440 }
441
442 #
443 # Register submodules in .git/config
444 #
445 # $@ = requested paths (default to all)
446 #
447 cmd_init()
448 {
449 # parse $args after "submodule ... init".
450 while test $# -ne 0
451 do
452 case "$1" in
453 -q|--quiet)
454 GIT_QUIET=1
455 ;;
456 --)
457 shift
458 break
459 ;;
460 -*)
461 usage
462 ;;
463 *)
464 break
465 ;;
466 esac
467 shift
468 done
469
470 git submodule--helper list --prefix "$wt_prefix" "$@" |
471 while read mode sha1 stage sm_path
472 do
473 die_if_unmatched "$mode"
474 name=$(git submodule--helper name "$sm_path") || exit
475
476 displaypath=$(relative_path "$prefix$sm_path")
477
478 # Copy url setting when it is not set yet
479 if test -z "$(git config "submodule.$name.url")"
480 then
481 url=$(git config -f .gitmodules submodule."$name".url)
482 test -z "$url" &&
483 die "$(eval_gettext "No url found for submodule path '\$displaypath' in .gitmodules")"
484
485 # Possibly a url relative to parent
486 case "$url" in
487 ./*|../*)
488 url=$(resolve_relative_url "$url") || exit
489 ;;
490 esac
491 git config submodule."$name".url "$url" ||
492 die "$(eval_gettext "Failed to register url for submodule path '\$displaypath'")"
493
494 say "$(eval_gettext "Submodule '\$name' (\$url) registered for path '\$displaypath'")"
495 fi
496
497 # Copy "update" setting when it is not set yet
498 if upd="$(git config -f .gitmodules submodule."$name".update)" &&
499 test -n "$upd" &&
500 test -z "$(git config submodule."$name".update)"
501 then
502 case "$upd" in
503 checkout | rebase | merge | none)
504 ;; # known modes of updating
505 *)
506 echo >&2 "warning: unknown update mode '$upd' suggested for submodule '$name'"
507 upd=none
508 ;;
509 esac
510 git config submodule."$name".update "$upd" ||
511 die "$(eval_gettext "Failed to register update mode for submodule path '\$displaypath'")"
512 fi
513 done
514 }
515
516 #
517 # Unregister submodules from .git/config and remove their work tree
518 #
519 # $@ = requested paths (use '.' to deinit all submodules)
520 #
521 cmd_deinit()
522 {
523 # parse $args after "submodule ... deinit".
524 deinit_all=
525 while test $# -ne 0
526 do
527 case "$1" in
528 -f|--force)
529 force=$1
530 ;;
531 -q|--quiet)
532 GIT_QUIET=1
533 ;;
534 --all)
535 deinit_all=t
536 ;;
537 --)
538 shift
539 break
540 ;;
541 -*)
542 usage
543 ;;
544 *)
545 break
546 ;;
547 esac
548 shift
549 done
550
551 if test -n "$deinit_all" && test "$#" -ne 0
552 then
553 echo >&2 "$(eval_gettext "pathspec and --all are incompatible")"
554 usage
555 fi
556 if test $# = 0 && test -z "$deinit_all"
557 then
558 die "$(eval_gettext "Use '--all' if you really want to deinitialize all submodules")"
559 fi
560
561 git submodule--helper list --prefix "$wt_prefix" "$@" |
562 while read mode sha1 stage sm_path
563 do
564 die_if_unmatched "$mode"
565 name=$(git submodule--helper name "$sm_path") || exit
566
567 displaypath=$(relative_path "$sm_path")
568
569 # Remove the submodule work tree (unless the user already did it)
570 if test -d "$sm_path"
571 then
572 # Protect submodules containing a .git directory
573 if test -d "$sm_path/.git"
574 then
575 echo >&2 "$(eval_gettext "Submodule work tree '\$displaypath' contains a .git directory")"
576 die "$(eval_gettext "(use 'rm -rf' if you really want to remove it including all of its history)")"
577 fi
578
579 if test -z "$force"
580 then
581 git rm -qn "$sm_path" ||
582 die "$(eval_gettext "Submodule work tree '\$displaypath' contains local modifications; use '-f' to discard them")"
583 fi
584 rm -rf "$sm_path" &&
585 say "$(eval_gettext "Cleared directory '\$displaypath'")" ||
586 say "$(eval_gettext "Could not remove submodule work tree '\$displaypath'")"
587 fi
588
589 mkdir "$sm_path" || say "$(eval_gettext "Could not create empty submodule directory '\$displaypath'")"
590
591 # Remove the .git/config entries (unless the user already did it)
592 if test -n "$(git config --get-regexp submodule."$name\.")"
593 then
594 # Remove the whole section so we have a clean state when
595 # the user later decides to init this submodule again
596 url=$(git config submodule."$name".url)
597 git config --remove-section submodule."$name" 2>/dev/null &&
598 say "$(eval_gettext "Submodule '\$name' (\$url) unregistered for path '\$displaypath'")"
599 fi
600 done
601 }
602
603 is_tip_reachable () (
604 clear_local_git_env
605 cd "$1" &&
606 rev=$(git rev-list -n 1 "$2" --not --all 2>/dev/null) &&
607 test -z "$rev"
608 )
609
610 fetch_in_submodule () (
611 clear_local_git_env
612 cd "$1" &&
613 case "$2" in
614 '')
615 git fetch ;;
616 *)
617 git fetch $(get_default_remote) "$2" ;;
618 esac
619 )
620
621 #
622 # Update each submodule path to correct revision, using clone and checkout as needed
623 #
624 # $@ = requested paths (default to all)
625 #
626 cmd_update()
627 {
628 # parse $args after "submodule ... update".
629 while test $# -ne 0
630 do
631 case "$1" in
632 -q|--quiet)
633 GIT_QUIET=1
634 ;;
635 -i|--init)
636 init=1
637 ;;
638 --remote)
639 remote=1
640 ;;
641 -N|--no-fetch)
642 nofetch=1
643 ;;
644 -f|--force)
645 force=$1
646 ;;
647 -r|--rebase)
648 update="rebase"
649 ;;
650 --reference)
651 case "$2" in '') usage ;; esac
652 reference="--reference=$2"
653 shift
654 ;;
655 --reference=*)
656 reference="$1"
657 ;;
658 -m|--merge)
659 update="merge"
660 ;;
661 --recursive)
662 recursive=1
663 ;;
664 --checkout)
665 update="checkout"
666 ;;
667 --depth)
668 case "$2" in '') usage ;; esac
669 depth="--depth=$2"
670 shift
671 ;;
672 --depth=*)
673 depth=$1
674 ;;
675 --)
676 shift
677 break
678 ;;
679 -*)
680 usage
681 ;;
682 *)
683 break
684 ;;
685 esac
686 shift
687 done
688
689 if test -n "$init"
690 then
691 cmd_init "--" "$@" || return
692 fi
693
694 cloned_modules=
695 git submodule--helper list --prefix "$wt_prefix" "$@" | {
696 err=
697 while read mode sha1 stage sm_path
698 do
699 die_if_unmatched "$mode"
700 if test "$stage" = U
701 then
702 echo >&2 "Skipping unmerged submodule $prefix$sm_path"
703 continue
704 fi
705 name=$(git submodule--helper name "$sm_path") || exit
706 url=$(git config submodule."$name".url)
707 branch=$(get_submodule_config "$name" branch master)
708 if ! test -z "$update"
709 then
710 update_module=$update
711 else
712 update_module=$(git config submodule."$name".update)
713 if test -z "$update_module"
714 then
715 update_module="checkout"
716 fi
717 fi
718
719 displaypath=$(relative_path "$prefix$sm_path")
720
721 if test "$update_module" = "none"
722 then
723 echo "Skipping submodule '$displaypath'"
724 continue
725 fi
726
727 if test -z "$url"
728 then
729 # Only mention uninitialized submodules when its
730 # path have been specified
731 test "$#" != "0" &&
732 say "$(eval_gettext "Submodule path '\$displaypath' not initialized
733 Maybe you want to use 'update --init'?")"
734 continue
735 fi
736
737 if ! test -d "$sm_path"/.git && ! test -f "$sm_path"/.git
738 then
739 git submodule--helper clone ${GIT_QUIET:+--quiet} --prefix "$prefix" --path "$sm_path" --name "$name" --url "$url" "$reference" "$depth" || exit
740 cloned_modules="$cloned_modules;$name"
741 subsha1=
742 else
743 subsha1=$(clear_local_git_env; cd "$sm_path" &&
744 git rev-parse --verify HEAD) ||
745 die "$(eval_gettext "Unable to find current revision in submodule path '\$displaypath'")"
746 fi
747
748 if test -n "$remote"
749 then
750 if test -z "$nofetch"
751 then
752 # Fetch remote before determining tracking $sha1
753 (clear_local_git_env; cd "$sm_path" && git-fetch) ||
754 die "$(eval_gettext "Unable to fetch in submodule path '\$sm_path'")"
755 fi
756 remote_name=$(clear_local_git_env; cd "$sm_path" && get_default_remote)
757 sha1=$(clear_local_git_env; cd "$sm_path" &&
758 git rev-parse --verify "${remote_name}/${branch}") ||
759 die "$(eval_gettext "Unable to find current ${remote_name}/${branch} revision in submodule path '\$sm_path'")"
760 fi
761
762 if test "$subsha1" != "$sha1" || test -n "$force"
763 then
764 subforce=$force
765 # If we don't already have a -f flag and the submodule has never been checked out
766 if test -z "$subsha1" && test -z "$force"
767 then
768 subforce="-f"
769 fi
770
771 if test -z "$nofetch"
772 then
773 # Run fetch only if $sha1 isn't present or it
774 # is not reachable from a ref.
775 is_tip_reachable "$sm_path" "$sha1" ||
776 fetch_in_submodule "$sm_path" ||
777 die "$(eval_gettext "Unable to fetch in submodule path '\$displaypath'")"
778
779 # Now we tried the usual fetch, but $sha1 may
780 # not be reachable from any of the refs
781 is_tip_reachable "$sm_path" "$sha1" ||
782 fetch_in_submodule "$sm_path" "$sha1" ||
783 die "$(eval_gettext "Fetched in submodule path '\$displaypath', but it did not contain $sha1. Direct fetching of that commit failed.")"
784 fi
785
786 # Is this something we just cloned?
787 case ";$cloned_modules;" in
788 *";$name;"*)
789 # then there is no local change to integrate
790 update_module=checkout ;;
791 esac
792
793 must_die_on_failure=
794 case "$update_module" in
795 checkout)
796 command="git checkout $subforce -q"
797 die_msg="$(eval_gettext "Unable to checkout '\$sha1' in submodule path '\$displaypath'")"
798 say_msg="$(eval_gettext "Submodule path '\$displaypath': checked out '\$sha1'")"
799 ;;
800 rebase)
801 command="git rebase"
802 die_msg="$(eval_gettext "Unable to rebase '\$sha1' in submodule path '\$displaypath'")"
803 say_msg="$(eval_gettext "Submodule path '\$displaypath': rebased into '\$sha1'")"
804 must_die_on_failure=yes
805 ;;
806 merge)
807 command="git merge"
808 die_msg="$(eval_gettext "Unable to merge '\$sha1' in submodule path '\$displaypath'")"
809 say_msg="$(eval_gettext "Submodule path '\$displaypath': merged in '\$sha1'")"
810 must_die_on_failure=yes
811 ;;
812 !*)
813 command="${update_module#!}"
814 die_msg="$(eval_gettext "Execution of '\$command \$sha1' failed in submodule path '\$displaypath'")"
815 say_msg="$(eval_gettext "Submodule path '\$displaypath': '\$command \$sha1'")"
816 must_die_on_failure=yes
817 ;;
818 *)
819 die "$(eval_gettext "Invalid update mode '$update_module' for submodule '$name'")"
820 esac
821
822 if (clear_local_git_env; cd "$sm_path" && $command "$sha1")
823 then
824 say "$say_msg"
825 elif test -n "$must_die_on_failure"
826 then
827 die_with_status 2 "$die_msg"
828 else
829 err="${err};$die_msg"
830 continue
831 fi
832 fi
833
834 if test -n "$recursive"
835 then
836 (
837 prefix="$prefix$sm_path/"
838 clear_local_git_env
839 cd "$sm_path" &&
840 eval cmd_update
841 )
842 res=$?
843 if test $res -gt 0
844 then
845 die_msg="$(eval_gettext "Failed to recurse into submodule path '\$displaypath'")"
846 if test $res -eq 1
847 then
848 err="${err};$die_msg"
849 continue
850 else
851 die_with_status $res "$die_msg"
852 fi
853 fi
854 fi
855 done
856
857 if test -n "$err"
858 then
859 OIFS=$IFS
860 IFS=';'
861 for e in $err
862 do
863 if test -n "$e"
864 then
865 echo >&2 "$e"
866 fi
867 done
868 IFS=$OIFS
869 exit 1
870 fi
871 }
872 }
873
874 set_name_rev () {
875 revname=$( (
876 clear_local_git_env
877 cd "$1" && {
878 git describe "$2" 2>/dev/null ||
879 git describe --tags "$2" 2>/dev/null ||
880 git describe --contains "$2" 2>/dev/null ||
881 git describe --all --always "$2"
882 }
883 ) )
884 test -z "$revname" || revname=" ($revname)"
885 }
886 #
887 # Show commit summary for submodules in index or working tree
888 #
889 # If '--cached' is given, show summary between index and given commit,
890 # or between working tree and given commit
891 #
892 # $@ = [commit (default 'HEAD'),] requested paths (default all)
893 #
894 cmd_summary() {
895 summary_limit=-1
896 for_status=
897 diff_cmd=diff-index
898
899 # parse $args after "submodule ... summary".
900 while test $# -ne 0
901 do
902 case "$1" in
903 --cached)
904 cached="$1"
905 ;;
906 --files)
907 files="$1"
908 ;;
909 --for-status)
910 for_status="$1"
911 ;;
912 -n|--summary-limit)
913 summary_limit="$2"
914 isnumber "$summary_limit" || usage
915 shift
916 ;;
917 --summary-limit=*)
918 summary_limit="${1#--summary-limit=}"
919 isnumber "$summary_limit" || usage
920 ;;
921 --)
922 shift
923 break
924 ;;
925 -*)
926 usage
927 ;;
928 *)
929 break
930 ;;
931 esac
932 shift
933 done
934
935 test $summary_limit = 0 && return
936
937 if rev=$(git rev-parse -q --verify --default HEAD ${1+"$1"})
938 then
939 head=$rev
940 test $# = 0 || shift
941 elif test -z "$1" || test "$1" = "HEAD"
942 then
943 # before the first commit: compare with an empty tree
944 head=$(git hash-object -w -t tree --stdin </dev/null)
945 test -z "$1" || shift
946 else
947 head="HEAD"
948 fi
949
950 if [ -n "$files" ]
951 then
952 test -n "$cached" &&
953 die "$(gettext "The --cached option cannot be used with the --files option")"
954 diff_cmd=diff-files
955 head=
956 fi
957
958 cd_to_toplevel
959 eval "set $(git rev-parse --sq --prefix "$wt_prefix" -- "$@")"
960 # Get modified modules cared by user
961 modules=$(git $diff_cmd $cached --ignore-submodules=dirty --raw $head -- "$@" |
962 sane_egrep '^:([0-7]* )?160000' |
963 while read mod_src mod_dst sha1_src sha1_dst status sm_path
964 do
965 # Always show modules deleted or type-changed (blob<->module)
966 if test "$status" = D || test "$status" = T
967 then
968 printf '%s\n' "$sm_path"
969 continue
970 fi
971 # Respect the ignore setting for --for-status.
972 if test -n "$for_status"
973 then
974 name=$(git submodule--helper name "$sm_path")
975 ignore_config=$(get_submodule_config "$name" ignore none)
976 test $status != A && test $ignore_config = all && continue
977 fi
978 # Also show added or modified modules which are checked out
979 GIT_DIR="$sm_path/.git" git-rev-parse --git-dir >/dev/null 2>&1 &&
980 printf '%s\n' "$sm_path"
981 done
982 )
983
984 test -z "$modules" && return
985
986 git $diff_cmd $cached --ignore-submodules=dirty --raw $head -- $modules |
987 sane_egrep '^:([0-7]* )?160000' |
988 cut -c2- |
989 while read mod_src mod_dst sha1_src sha1_dst status name
990 do
991 if test -z "$cached" &&
992 test $sha1_dst = 0000000000000000000000000000000000000000
993 then
994 case "$mod_dst" in
995 160000)
996 sha1_dst=$(GIT_DIR="$name/.git" git rev-parse HEAD)
997 ;;
998 100644 | 100755 | 120000)
999 sha1_dst=$(git hash-object $name)
1000 ;;
1001 000000)
1002 ;; # removed
1003 *)
1004 # unexpected type
1005 eval_gettextln "unexpected mode \$mod_dst" >&2
1006 continue ;;
1007 esac
1008 fi
1009 missing_src=
1010 missing_dst=
1011
1012 test $mod_src = 160000 &&
1013 ! GIT_DIR="$name/.git" git-rev-parse -q --verify $sha1_src^0 >/dev/null &&
1014 missing_src=t
1015
1016 test $mod_dst = 160000 &&
1017 ! GIT_DIR="$name/.git" git-rev-parse -q --verify $sha1_dst^0 >/dev/null &&
1018 missing_dst=t
1019
1020 display_name=$(relative_path "$name")
1021
1022 total_commits=
1023 case "$missing_src,$missing_dst" in
1024 t,)
1025 errmsg="$(eval_gettext " Warn: \$display_name doesn't contain commit \$sha1_src")"
1026 ;;
1027 ,t)
1028 errmsg="$(eval_gettext " Warn: \$display_name doesn't contain commit \$sha1_dst")"
1029 ;;
1030 t,t)
1031 errmsg="$(eval_gettext " Warn: \$display_name doesn't contain commits \$sha1_src and \$sha1_dst")"
1032 ;;
1033 *)
1034 errmsg=
1035 total_commits=$(
1036 if test $mod_src = 160000 && test $mod_dst = 160000
1037 then
1038 range="$sha1_src...$sha1_dst"
1039 elif test $mod_src = 160000
1040 then
1041 range=$sha1_src
1042 else
1043 range=$sha1_dst
1044 fi
1045 GIT_DIR="$name/.git" \
1046 git rev-list --first-parent $range -- | wc -l
1047 )
1048 total_commits=" ($(($total_commits + 0)))"
1049 ;;
1050 esac
1051
1052 sha1_abbr_src=$(echo $sha1_src | cut -c1-7)
1053 sha1_abbr_dst=$(echo $sha1_dst | cut -c1-7)
1054 if test $status = T
1055 then
1056 blob="$(gettext "blob")"
1057 submodule="$(gettext "submodule")"
1058 if test $mod_dst = 160000
1059 then
1060 echo "* $display_name $sha1_abbr_src($blob)->$sha1_abbr_dst($submodule)$total_commits:"
1061 else
1062 echo "* $display_name $sha1_abbr_src($submodule)->$sha1_abbr_dst($blob)$total_commits:"
1063 fi
1064 else
1065 echo "* $display_name $sha1_abbr_src...$sha1_abbr_dst$total_commits:"
1066 fi
1067 if test -n "$errmsg"
1068 then
1069 # Don't give error msg for modification whose dst is not submodule
1070 # i.e. deleted or changed to blob
1071 test $mod_dst = 160000 && echo "$errmsg"
1072 else
1073 if test $mod_src = 160000 && test $mod_dst = 160000
1074 then
1075 limit=
1076 test $summary_limit -gt 0 && limit="-$summary_limit"
1077 GIT_DIR="$name/.git" \
1078 git log $limit --pretty='format: %m %s' \
1079 --first-parent $sha1_src...$sha1_dst
1080 elif test $mod_dst = 160000
1081 then
1082 GIT_DIR="$name/.git" \
1083 git log --pretty='format: > %s' -1 $sha1_dst
1084 else
1085 GIT_DIR="$name/.git" \
1086 git log --pretty='format: < %s' -1 $sha1_src
1087 fi
1088 echo
1089 fi
1090 echo
1091 done
1092 }
1093 #
1094 # List all submodules, prefixed with:
1095 # - submodule not initialized
1096 # + different revision checked out
1097 #
1098 # If --cached was specified the revision in the index will be printed
1099 # instead of the currently checked out revision.
1100 #
1101 # $@ = requested paths (default to all)
1102 #
1103 cmd_status()
1104 {
1105 # parse $args after "submodule ... status".
1106 while test $# -ne 0
1107 do
1108 case "$1" in
1109 -q|--quiet)
1110 GIT_QUIET=1
1111 ;;
1112 --cached)
1113 cached=1
1114 ;;
1115 --recursive)
1116 recursive=1
1117 ;;
1118 --)
1119 shift
1120 break
1121 ;;
1122 -*)
1123 usage
1124 ;;
1125 *)
1126 break
1127 ;;
1128 esac
1129 shift
1130 done
1131
1132 git submodule--helper list --prefix "$wt_prefix" "$@" |
1133 while read mode sha1 stage sm_path
1134 do
1135 die_if_unmatched "$mode"
1136 name=$(git submodule--helper name "$sm_path") || exit
1137 url=$(git config submodule."$name".url)
1138 displaypath=$(relative_path "$prefix$sm_path")
1139 if test "$stage" = U
1140 then
1141 say "U$sha1 $displaypath"
1142 continue
1143 fi
1144 if test -z "$url" ||
1145 {
1146 ! test -d "$sm_path"/.git &&
1147 ! test -f "$sm_path"/.git
1148 }
1149 then
1150 say "-$sha1 $displaypath"
1151 continue;
1152 fi
1153 if git diff-files --ignore-submodules=dirty --quiet -- "$sm_path"
1154 then
1155 set_name_rev "$sm_path" "$sha1"
1156 say " $sha1 $displaypath$revname"
1157 else
1158 if test -z "$cached"
1159 then
1160 sha1=$(clear_local_git_env; cd "$sm_path" && git rev-parse --verify HEAD)
1161 fi
1162 set_name_rev "$sm_path" "$sha1"
1163 say "+$sha1 $displaypath$revname"
1164 fi
1165
1166 if test -n "$recursive"
1167 then
1168 (
1169 prefix="$displaypath/"
1170 clear_local_git_env
1171 wt_prefix=
1172 cd "$sm_path" &&
1173 eval cmd_status
1174 ) ||
1175 die "$(eval_gettext "Failed to recurse into submodule path '\$sm_path'")"
1176 fi
1177 done
1178 }
1179 #
1180 # Sync remote urls for submodules
1181 # This makes the value for remote.$remote.url match the value
1182 # specified in .gitmodules.
1183 #
1184 cmd_sync()
1185 {
1186 while test $# -ne 0
1187 do
1188 case "$1" in
1189 -q|--quiet)
1190 GIT_QUIET=1
1191 shift
1192 ;;
1193 --recursive)
1194 recursive=1
1195 shift
1196 ;;
1197 --)
1198 shift
1199 break
1200 ;;
1201 -*)
1202 usage
1203 ;;
1204 *)
1205 break
1206 ;;
1207 esac
1208 done
1209 cd_to_toplevel
1210 git submodule--helper list --prefix "$wt_prefix" "$@" |
1211 while read mode sha1 stage sm_path
1212 do
1213 die_if_unmatched "$mode"
1214 name=$(git submodule--helper name "$sm_path")
1215 url=$(git config -f .gitmodules --get submodule."$name".url)
1216
1217 # Possibly a url relative to parent
1218 case "$url" in
1219 ./*|../*)
1220 # rewrite foo/bar as ../.. to find path from
1221 # submodule work tree to superproject work tree
1222 up_path="$(printf '%s\n' "$sm_path" | sed "s/[^/][^/]*/../g")" &&
1223 # guarantee a trailing /
1224 up_path=${up_path%/}/ &&
1225 # path from submodule work tree to submodule origin repo
1226 sub_origin_url=$(resolve_relative_url "$url" "$up_path") &&
1227 # path from superproject work tree to submodule origin repo
1228 super_config_url=$(resolve_relative_url "$url") || exit
1229 ;;
1230 *)
1231 sub_origin_url="$url"
1232 super_config_url="$url"
1233 ;;
1234 esac
1235
1236 if git config "submodule.$name.url" >/dev/null 2>/dev/null
1237 then
1238 displaypath=$(relative_path "$prefix$sm_path")
1239 say "$(eval_gettext "Synchronizing submodule url for '\$displaypath'")"
1240 git config submodule."$name".url "$super_config_url"
1241
1242 if test -e "$sm_path"/.git
1243 then
1244 (
1245 clear_local_git_env
1246 cd "$sm_path"
1247 remote=$(get_default_remote)
1248 git config remote."$remote".url "$sub_origin_url"
1249
1250 if test -n "$recursive"
1251 then
1252 prefix="$prefix$sm_path/"
1253 eval cmd_sync
1254 fi
1255 )
1256 fi
1257 fi
1258 done
1259 }
1260
1261 # This loop parses the command line arguments to find the
1262 # subcommand name to dispatch. Parsing of the subcommand specific
1263 # options are primarily done by the subcommand implementations.
1264 # Subcommand specific options such as --branch and --cached are
1265 # parsed here as well, for backward compatibility.
1266
1267 while test $# != 0 && test -z "$command"
1268 do
1269 case "$1" in
1270 add | foreach | init | deinit | update | status | summary | sync)
1271 command=$1
1272 ;;
1273 -q|--quiet)
1274 GIT_QUIET=1
1275 ;;
1276 -b|--branch)
1277 case "$2" in
1278 '')
1279 usage
1280 ;;
1281 esac
1282 branch="$2"; shift
1283 ;;
1284 --cached)
1285 cached="$1"
1286 ;;
1287 --)
1288 break
1289 ;;
1290 -*)
1291 usage
1292 ;;
1293 *)
1294 break
1295 ;;
1296 esac
1297 shift
1298 done
1299
1300 # No command word defaults to "status"
1301 if test -z "$command"
1302 then
1303 if test $# = 0
1304 then
1305 command=status
1306 else
1307 usage
1308 fi
1309 fi
1310
1311 # "-b branch" is accepted only by "add"
1312 if test -n "$branch" && test "$command" != add
1313 then
1314 usage
1315 fi
1316
1317 # "--cached" is accepted only by "status" and "summary"
1318 if test -n "$cached" && test "$command" != status && test "$command" != summary
1319 then
1320 usage
1321 fi
1322
1323 "cmd_$command" "$@"