Handle http.* config variables pointing to files gracefully on Windows
[git/mingw/4msysgit.git] / git-submodule.sh
blobc21b77aee54cd045b7bb64ae7337387569bbf65a
1 #!/bin/sh
3 # git-submodules.sh: add, init, update or list git submodules
5 # Copyright (c) 2007 Lars Hjemli
7 dashless=$(basename "$0" | sed -e 's/-/ /')
8 USAGE="[--quiet] add [-b branch] [-f|--force] [--reference <repository>] [--] <repository> [<path>]
9 or: $dashless [--quiet] status [--cached] [--recursive] [--] [<path>...]
10 or: $dashless [--quiet] init [--] [<path>...]
11 or: $dashless [--quiet] update [--init] [-N|--no-fetch] [--rebase] [--reference <repository>] [--merge] [--recursive] [--] [<path>...]
12 or: $dashless [--quiet] summary [--cached|--files] [--summary-limit <n>] [commit] [--] [<path>...]
13 or: $dashless [--quiet] foreach [--recursive] <command>
14 or: $dashless [--quiet] sync [--] [<path>...]"
15 OPTIONS_SPEC=
16 . git-sh-setup
17 . git-parse-remote
18 require_work_tree
20 command=
21 branch=
22 force=
23 reference=
24 cached=
25 recursive=
26 init=
27 files=
28 nofetch=
29 update=
30 prefix=
32 # Resolve relative url by appending to parent's url
33 resolve_relative_url ()
35 remote=$(get_default_remote)
36 remoteurl=$(git config "remote.$remote.url") ||
37 die "remote ($remote) does not have a url defined in .git/config"
38 url="$1"
39 remoteurl=${remoteurl%/}
40 while test -n "$url"
42 case "$url" in
43 ../*)
44 url="${url#../}"
45 remoteurl="${remoteurl%/*}"
47 ./*)
48 url="${url#./}"
51 break;;
52 esac
53 done
54 echo "$remoteurl/${url%/}"
58 # Get submodule info for registered submodules
59 # $@ = path to limit submodule list
61 module_list()
63 git ls-files --error-unmatch --stage -- "$@" | sane_grep '^160000 '
67 # Map submodule path to submodule name
69 # $1 = path
71 module_name()
73 # Do we have "submodule.<something>.path = $1" defined in .gitmodules file?
74 re=$(printf '%s\n' "$1" | sed -e 's/[].[^$\\*]/\\&/g')
75 name=$( git config -f .gitmodules --get-regexp '^submodule\..*\.path$' |
76 sed -n -e 's|^submodule\.\(.*\)\.path '"$re"'$|\1|p' )
77 test -z "$name" &&
78 die "No submodule mapping found in .gitmodules for path '$path'"
79 echo "$name"
83 # Clone a submodule
85 # Prior to calling, cmd_update checks that a possibly existing
86 # path is not a git repository.
87 # Likewise, cmd_add checks that path does not exist at all,
88 # since it is the location of a new submodule.
90 module_clone()
92 path=$1
93 url=$2
94 reference="$3"
96 if test -n "$reference"
97 then
98 git-clone "$reference" -n "$url" "$path"
99 else
100 git-clone -n "$url" "$path"
101 fi ||
102 die "Clone of '$url' into submodule path '$path' failed"
106 # Add a new submodule to the working tree, .gitmodules and the index
108 # $@ = repo path
110 # optional branch is stored in global branch variable
112 cmd_add()
114 # parse $args after "submodule ... add".
115 while test $# -ne 0
117 case "$1" in
118 -b | --branch)
119 case "$2" in '') usage ;; esac
120 branch=$2
121 shift
123 -f | --force)
124 force=$1
126 -q|--quiet)
127 GIT_QUIET=1
129 --reference)
130 case "$2" in '') usage ;; esac
131 reference="--reference=$2"
132 shift
134 --reference=*)
135 reference="$1"
136 shift
139 shift
140 break
143 usage
146 break
148 esac
149 shift
150 done
152 repo=$1
153 path=$2
155 if test -z "$path"; then
156 path=$(echo "$repo" |
157 sed -e 's|/$||' -e 's|:*/*\.git$||' -e 's|.*[/:]||g')
160 if test -z "$repo" -o -z "$path"; then
161 usage
164 # assure repo is absolute or relative to parent
165 case "$repo" in
166 ./*|../*)
167 # dereference source url relative to parent's url
168 realrepo=$(resolve_relative_url "$repo") || exit
170 *:*|/*)
171 # absolute url
172 realrepo=$repo
175 die "repo URL: '$repo' must be absolute or begin with ./|../"
177 esac
179 # normalize path:
180 # multiple //; leading ./; /./; /../; trailing /
181 path=$(printf '%s/\n' "$path" |
182 sed -e '
183 s|//*|/|g
184 s|^\(\./\)*||
185 s|/\./|/|g
186 :start
187 s|\([^/]*\)/\.\./||
188 tstart
189 s|/*$||
191 git ls-files --error-unmatch "$path" > /dev/null 2>&1 &&
192 die "'$path' already exists in the index"
194 if test -z "$force" && ! git add --dry-run --ignore-missing "$path" > /dev/null 2>&1
195 then
196 echo >&2 "The following path is ignored by one of your .gitignore files:" &&
197 echo >&2 $path &&
198 echo >&2 "Use -f if you really want to add it."
199 exit 1
202 # perhaps the path exists and is already a git repo, else clone it
203 if test -e "$path"
204 then
205 if test -d "$path"/.git -o -f "$path"/.git
206 then
207 echo "Adding existing repo at '$path' to the index"
208 else
209 die "'$path' already exists and is not a valid git repo"
212 case "$repo" in
213 ./*|../*)
214 url=$(resolve_relative_url "$repo") || exit
217 url="$repo"
219 esac
220 git config submodule."$path".url "$url"
221 else
223 module_clone "$path" "$realrepo" "$reference" || exit
225 clear_local_git_env
226 cd "$path" &&
227 # ash fails to wordsplit ${branch:+-b "$branch"...}
228 case "$branch" in
229 '') git checkout -f -q ;;
230 ?*) git checkout -f -q -B "$branch" "origin/$branch" ;;
231 esac
232 ) || die "Unable to checkout submodule '$path'"
235 git add $force "$path" ||
236 die "Failed to add submodule '$path'"
238 git config -f .gitmodules submodule."$path".path "$path" &&
239 git config -f .gitmodules submodule."$path".url "$repo" &&
240 git add --force .gitmodules ||
241 die "Failed to register submodule '$path'"
245 # Execute an arbitrary command sequence in each checked out
246 # submodule
248 # $@ = command to execute
250 cmd_foreach()
252 # parse $args after "submodule ... foreach".
253 while test $# -ne 0
255 case "$1" in
256 -q|--quiet)
257 GIT_QUIET=1
259 --recursive)
260 recursive=1
263 usage
266 break
268 esac
269 shift
270 done
272 toplevel=$(pwd)
274 module_list |
275 while read mode sha1 stage path
277 if test -e "$path"/.git
278 then
279 say "Entering '$prefix$path'"
280 name=$(module_name "$path")
282 prefix="$prefix$path/"
283 clear_local_git_env
284 cd "$path" &&
285 eval "$@" &&
286 if test -n "$recursive"
287 then
288 cmd_foreach "--recursive" "$@"
290 ) ||
291 die "Stopping at '$path'; script returned non-zero status."
293 done
297 # Register submodules in .git/config
299 # $@ = requested paths (default to all)
301 cmd_init()
303 # parse $args after "submodule ... init".
304 while test $# -ne 0
306 case "$1" in
307 -q|--quiet)
308 GIT_QUIET=1
311 shift
312 break
315 usage
318 break
320 esac
321 shift
322 done
324 module_list "$@" |
325 while read mode sha1 stage path
327 # Skip already registered paths
328 name=$(module_name "$path") || exit
329 url=$(git config submodule."$name".url)
330 test -z "$url" || continue
332 url=$(git config -f .gitmodules submodule."$name".url)
333 test -z "$url" &&
334 die "No url found for submodule path '$path' in .gitmodules"
336 # Possibly a url relative to parent
337 case "$url" in
338 ./*|../*)
339 url=$(resolve_relative_url "$url") || exit
341 esac
343 git config submodule."$name".url "$url" ||
344 die "Failed to register url for submodule path '$path'"
346 upd="$(git config -f .gitmodules submodule."$name".update)"
347 test -z "$upd" ||
348 git config submodule."$name".update "$upd" ||
349 die "Failed to register update mode for submodule path '$path'"
351 say "Submodule '$name' ($url) registered for path '$path'"
352 done
356 # Update each submodule path to correct revision, using clone and checkout as needed
358 # $@ = requested paths (default to all)
360 cmd_update()
362 # parse $args after "submodule ... update".
363 orig_flags=
364 while test $# -ne 0
366 case "$1" in
367 -q|--quiet)
368 GIT_QUIET=1
370 -i|--init)
371 init=1
373 -N|--no-fetch)
374 nofetch=1
376 -r|--rebase)
377 update="rebase"
379 --reference)
380 case "$2" in '') usage ;; esac
381 reference="--reference=$2"
382 orig_flags="$orig_flags $(git rev-parse --sq-quote "$1")"
383 shift
385 --reference=*)
386 reference="$1"
388 -m|--merge)
389 update="merge"
391 --recursive)
392 recursive=1
395 shift
396 break
399 usage
402 break
404 esac
405 orig_flags="$orig_flags $(git rev-parse --sq-quote "$1")"
406 shift
407 done
409 if test -n "$init"
410 then
411 cmd_init "--" "$@" || return
414 module_list "$@" |
415 while read mode sha1 stage path
417 name=$(module_name "$path") || exit
418 url=$(git config submodule."$name".url)
419 update_module=$(git config submodule."$name".update)
420 if test -z "$url"
421 then
422 # Only mention uninitialized submodules when its
423 # path have been specified
424 test "$#" != "0" &&
425 say "Submodule path '$path' not initialized" &&
426 say "Maybe you want to use 'update --init'?"
427 continue
430 if ! test -d "$path"/.git -o -f "$path"/.git
431 then
432 module_clone "$path" "$url" "$reference"|| exit
433 subsha1=
434 else
435 subsha1=$(clear_local_git_env; cd "$path" &&
436 git rev-parse --verify HEAD) ||
437 die "Unable to find current revision in submodule path '$path'"
440 if ! test -z "$update"
441 then
442 update_module=$update
445 if test "$subsha1" != "$sha1"
446 then
447 force=
448 if test -z "$subsha1"
449 then
450 force="-f"
453 if test -z "$nofetch"
454 then
455 (clear_local_git_env; cd "$path" &&
456 git-fetch) ||
457 die "Unable to fetch in submodule path '$path'"
460 case "$update_module" in
461 rebase)
462 command="git rebase"
463 action="rebase"
464 msg="rebased onto"
466 merge)
467 command="git merge"
468 action="merge"
469 msg="merged in"
472 command="git checkout $force -q"
473 action="checkout"
474 msg="checked out"
476 esac
478 (clear_local_git_env; cd "$path" && $command "$sha1") ||
479 die "Unable to $action '$sha1' in submodule path '$path'"
480 say "Submodule path '$path': $msg '$sha1'"
483 if test -n "$recursive"
484 then
485 (clear_local_git_env; cd "$path" && eval cmd_update "$orig_flags") ||
486 die "Failed to recurse into submodule path '$path'"
488 done
491 set_name_rev () {
492 revname=$( (
493 clear_local_git_env
494 cd "$1" && {
495 git describe "$2" 2>/dev/null ||
496 git describe --tags "$2" 2>/dev/null ||
497 git describe --contains "$2" 2>/dev/null ||
498 git describe --all --always "$2"
501 test -z "$revname" || revname=" ($revname)"
504 # Show commit summary for submodules in index or working tree
506 # If '--cached' is given, show summary between index and given commit,
507 # or between working tree and given commit
509 # $@ = [commit (default 'HEAD'),] requested paths (default all)
511 cmd_summary() {
512 summary_limit=-1
513 for_status=
514 diff_cmd=diff-index
516 # parse $args after "submodule ... summary".
517 while test $# -ne 0
519 case "$1" in
520 --cached)
521 cached="$1"
523 --files)
524 files="$1"
526 --for-status)
527 for_status="$1"
529 -n|--summary-limit)
530 if summary_limit=$(($2 + 0)) 2>/dev/null && test "$summary_limit" = "$2"
531 then
533 else
534 usage
536 shift
539 shift
540 break
543 usage
546 break
548 esac
549 shift
550 done
552 test $summary_limit = 0 && return
554 if rev=$(git rev-parse -q --verify --default HEAD ${1+"$1"})
555 then
556 head=$rev
557 test $# = 0 || shift
558 elif test -z "$1" -o "$1" = "HEAD"
559 then
560 # before the first commit: compare with an empty tree
561 head=$(git hash-object -w -t tree --stdin </dev/null)
562 test -z "$1" || shift
563 else
564 head="HEAD"
567 if [ -n "$files" ]
568 then
569 test -n "$cached" &&
570 die "--cached cannot be used with --files"
571 diff_cmd=diff-files
572 head=
575 cd_to_toplevel
576 # Get modified modules cared by user
577 modules=$(git $diff_cmd $cached --ignore-submodules=dirty --raw $head -- "$@" |
578 sane_egrep '^:([0-7]* )?160000' |
579 while read mod_src mod_dst sha1_src sha1_dst status name
581 # Always show modules deleted or type-changed (blob<->module)
582 test $status = D -o $status = T && echo "$name" && continue
583 # Also show added or modified modules which are checked out
584 GIT_DIR="$name/.git" git-rev-parse --git-dir >/dev/null 2>&1 &&
585 echo "$name"
586 done
589 test -z "$modules" && return
591 git $diff_cmd $cached --ignore-submodules=dirty --raw $head -- $modules |
592 sane_egrep '^:([0-7]* )?160000' |
593 cut -c2- |
594 while read mod_src mod_dst sha1_src sha1_dst status name
596 if test -z "$cached" &&
597 test $sha1_dst = 0000000000000000000000000000000000000000
598 then
599 case "$mod_dst" in
600 160000)
601 sha1_dst=$(GIT_DIR="$name/.git" git rev-parse HEAD)
603 100644 | 100755 | 120000)
604 sha1_dst=$(git hash-object $name)
606 000000)
607 ;; # removed
609 # unexpected type
610 echo >&2 "unexpected mode $mod_dst"
611 continue ;;
612 esac
614 missing_src=
615 missing_dst=
617 test $mod_src = 160000 &&
618 ! GIT_DIR="$name/.git" git-rev-parse -q --verify $sha1_src^0 >/dev/null &&
619 missing_src=t
621 test $mod_dst = 160000 &&
622 ! GIT_DIR="$name/.git" git-rev-parse -q --verify $sha1_dst^0 >/dev/null &&
623 missing_dst=t
625 total_commits=
626 case "$missing_src,$missing_dst" in
628 errmsg=" Warn: $name doesn't contain commit $sha1_src"
631 errmsg=" Warn: $name doesn't contain commit $sha1_dst"
633 t,t)
634 errmsg=" Warn: $name doesn't contain commits $sha1_src and $sha1_dst"
637 errmsg=
638 total_commits=$(
639 if test $mod_src = 160000 -a $mod_dst = 160000
640 then
641 range="$sha1_src...$sha1_dst"
642 elif test $mod_src = 160000
643 then
644 range=$sha1_src
645 else
646 range=$sha1_dst
648 GIT_DIR="$name/.git" \
649 git rev-list --first-parent $range -- | wc -l
651 total_commits=" ($(($total_commits + 0)))"
653 esac
655 sha1_abbr_src=$(echo $sha1_src | cut -c1-7)
656 sha1_abbr_dst=$(echo $sha1_dst | cut -c1-7)
657 if test $status = T
658 then
659 if test $mod_dst = 160000
660 then
661 echo "* $name $sha1_abbr_src(blob)->$sha1_abbr_dst(submodule)$total_commits:"
662 else
663 echo "* $name $sha1_abbr_src(submodule)->$sha1_abbr_dst(blob)$total_commits:"
665 else
666 echo "* $name $sha1_abbr_src...$sha1_abbr_dst$total_commits:"
668 if test -n "$errmsg"
669 then
670 # Don't give error msg for modification whose dst is not submodule
671 # i.e. deleted or changed to blob
672 test $mod_dst = 160000 && echo "$errmsg"
673 else
674 if test $mod_src = 160000 -a $mod_dst = 160000
675 then
676 limit=
677 test $summary_limit -gt 0 && limit="-$summary_limit"
678 GIT_DIR="$name/.git" \
679 git log $limit --pretty='format: %m %s' \
680 --first-parent $sha1_src...$sha1_dst
681 elif test $mod_dst = 160000
682 then
683 GIT_DIR="$name/.git" \
684 git log --pretty='format: > %s' -1 $sha1_dst
685 else
686 GIT_DIR="$name/.git" \
687 git log --pretty='format: < %s' -1 $sha1_src
689 echo
691 echo
692 done |
693 if test -n "$for_status"; then
694 if [ -n "$files" ]; then
695 echo "# Submodules changed but not updated:"
696 else
697 echo "# Submodule changes to be committed:"
699 echo "#"
700 sed -e 's|^|# |' -e 's|^# $|#|'
701 else
706 # List all submodules, prefixed with:
707 # - submodule not initialized
708 # + different revision checked out
710 # If --cached was specified the revision in the index will be printed
711 # instead of the currently checked out revision.
713 # $@ = requested paths (default to all)
715 cmd_status()
717 # parse $args after "submodule ... status".
718 orig_flags=
719 while test $# -ne 0
721 case "$1" in
722 -q|--quiet)
723 GIT_QUIET=1
725 --cached)
726 cached=1
728 --recursive)
729 recursive=1
732 shift
733 break
736 usage
739 break
741 esac
742 orig_flags="$orig_flags $(git rev-parse --sq-quote "$1")"
743 shift
744 done
746 module_list "$@" |
747 while read mode sha1 stage path
749 name=$(module_name "$path") || exit
750 url=$(git config submodule."$name".url)
751 displaypath="$prefix$path"
752 if test -z "$url" || ! test -d "$path"/.git -o -f "$path"/.git
753 then
754 say "-$sha1 $displaypath"
755 continue;
757 set_name_rev "$path" "$sha1"
758 if git diff-files --ignore-submodules=dirty --quiet -- "$path"
759 then
760 say " $sha1 $displaypath$revname"
761 else
762 if test -z "$cached"
763 then
764 sha1=$(clear_local_git_env; cd "$path" && git rev-parse --verify HEAD)
765 set_name_rev "$path" "$sha1"
767 say "+$sha1 $displaypath$revname"
770 if test -n "$recursive"
771 then
773 prefix="$displaypath/"
774 clear_local_git_env
775 cd "$path" &&
776 eval cmd_status "$orig_args"
777 ) ||
778 die "Failed to recurse into submodule path '$path'"
780 done
783 # Sync remote urls for submodules
784 # This makes the value for remote.$remote.url match the value
785 # specified in .gitmodules.
787 cmd_sync()
789 while test $# -ne 0
791 case "$1" in
792 -q|--quiet)
793 GIT_QUIET=1
794 shift
797 shift
798 break
801 usage
804 break
806 esac
807 done
808 cd_to_toplevel
809 module_list "$@" |
810 while read mode sha1 stage path
812 name=$(module_name "$path")
813 url=$(git config -f .gitmodules --get submodule."$name".url)
815 # Possibly a url relative to parent
816 case "$url" in
817 ./*|../*)
818 url=$(resolve_relative_url "$url") || exit
820 esac
822 say "Synchronizing submodule url for '$name'"
823 git config submodule."$name".url "$url"
825 if test -e "$path"/.git
826 then
828 clear_local_git_env
829 cd "$path"
830 remote=$(get_default_remote)
831 git config remote."$remote".url "$url"
834 done
837 # This loop parses the command line arguments to find the
838 # subcommand name to dispatch. Parsing of the subcommand specific
839 # options are primarily done by the subcommand implementations.
840 # Subcommand specific options such as --branch and --cached are
841 # parsed here as well, for backward compatibility.
843 while test $# != 0 && test -z "$command"
845 case "$1" in
846 add | foreach | init | update | status | summary | sync)
847 command=$1
849 -q|--quiet)
850 GIT_QUIET=1
852 -b|--branch)
853 case "$2" in
855 usage
857 esac
858 branch="$2"; shift
860 --cached)
861 cached="$1"
864 break
867 usage
870 break
872 esac
873 shift
874 done
876 # No command word defaults to "status"
877 test -n "$command" || command=status
879 # "-b branch" is accepted only by "add"
880 if test -n "$branch" && test "$command" != add
881 then
882 usage
885 # "--cached" is accepted only by "status" and "summary"
886 if test -n "$cached" && test "$command" != status -a "$command" != summary
887 then
888 usage
891 "cmd_$command" "$@"