3 # git-submodule.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] [--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] [--[no-]recommend-shallow] [--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 or: $dashless [--quiet] absorbgitdirs [--] [<path>...]"
22 wt_prefix=$(git rev-parse --show-prefix)
25 # Tell the rest of git that any URLs we get don't come
26 # directly from the user, so it can apply policy as appropriate.
27 GIT_PROTOCOL_FROM_USER=0
28 export GIT_PROTOCOL_FROM_USER
48 if test "$1" = "#unmatched"
55 # Print a submodule configuration setting
61 # Checks in the usual git-config places first (for overrides),
62 # otherwise it falls back on .gitmodules. This allows you to
63 # distribute project-wide defaults in .gitmodules, while still
64 # customizing individual repositories if necessary. If the option is
65 # not in .gitmodules either, print a default value.
67 get_submodule_config () {
71 value=$(git config submodule."$name"."$option")
74 value=$(git config -f .gitmodules submodule."$name"."$option")
76 printf '%s' "${value:-$default}"
81 n=$(($1 + 0)) 2>/dev/null && test "$n" = "$1"
84 # Sanitize the local git environment for use within a submodule. We
85 # can't simply use clear_local_git_env since we want to preserve some
86 # of the settings from GIT_CONFIG_PARAMETERS.
87 sanitize_submodule_env()
89 save_config=$GIT_CONFIG_PARAMETERS
91 GIT_CONFIG_PARAMETERS=$save_config
92 export GIT_CONFIG_PARAMETERS
96 # Add a new submodule to the working tree, .gitmodules and the index
100 # optional branch is stored in global branch variable
104 # parse $args after "submodule ... add".
110 case "$2" in '') usage ;; esac
121 case "$2" in '') usage ;; esac
126 reference_path="${1#--reference=}"
129 case "$2" in '') usage ;; esac
134 case "$2" in '') usage ;; esac
155 if test -n "$reference_path"
157 is_absolute_path "$reference_path" ||
158 reference_path="$wt_prefix$reference_path"
160 reference="--reference=$reference_path"
166 if test -z "$sm_path"; then
167 sm_path=$(printf '%s\n' "$repo" |
168 sed -e 's|/$||' -e 's|:*/*\.git$||' -e 's|.*[/:]||g')
171 if test -z "$repo" || test -z "$sm_path"; then
175 is_absolute_path "$sm_path" || sm_path="$wt_prefix$sm_path"
177 # assure repo is absolute or relative to parent
180 test -z "$wt_prefix" ||
181 die "$(gettext "Relative path can only be used from the toplevel of the working tree")"
183 # dereference source url relative to parent's url
184 realrepo=$(git submodule--helper resolve-relative-url "$repo") || exit
191 die "$(eval_gettext "repo URL: '\$repo' must be absolute or begin with ./|../")"
196 # multiple //; leading ./; /./; /../; trailing /
197 sm_path=$(printf '%s/\n' "$sm_path" |
209 git ls-files --error-unmatch "$sm_path" > /dev/null 2>&1 &&
210 die "$(eval_gettext "'\$sm_path' already exists in the index")"
212 git ls-files -s "$sm_path" | sane_grep -v "^160000" > /dev/null 2>&1 &&
213 die "$(eval_gettext "'\$sm_path' already exists in the index and is not a submodule")"
216 if test -z "$force" &&
217 ! git add --dry-run --ignore-missing --no-warn-embedded-repo "$sm_path" > /dev/null 2>&1
219 eval_gettextln "The following path is ignored by one of your .gitignore files:
221 Use -f if you really want to add it." >&2
225 if test -n "$custom_name"
227 sm_name="$custom_name"
232 if ! git submodule--helper check-name "$sm_name"
234 die "$(eval_gettext "'$sm_name' is not a valid submodule name")"
237 # perhaps the path exists and is already a git repo, else clone it
238 if test -e "$sm_path"
240 if test -d "$sm_path"/.git || test -f "$sm_path"/.git
242 eval_gettextln "Adding existing repo at '\$sm_path' to the index"
244 die "$(eval_gettext "'\$sm_path' already exists and is not a valid git repo")"
248 if test -d ".git/modules/$sm_name"
252 eval_gettextln >&2 "A git directory for '\$sm_name' is found locally with remote(s):"
253 GIT_DIR=".git/modules/$sm_name" GIT_WORK_TREE=. git remote -v | grep '(fetch)' | sed -e s,^," ", -e s,' (fetch)',, >&2
254 die "$(eval_gettextln "\
255 If you want to reuse this local git directory instead of cloning again from
257 use the '--force' option. If the local git directory is not the correct repo
258 or you are unsure what this means choose another name with the '--name' option.")"
260 eval_gettextln "Reactivating local git directory for submodule '\$sm_name'."
263 git submodule--helper clone ${GIT_QUIET:+--quiet} --prefix "$wt_prefix" --path "$sm_path" --name "$sm_name" --url "$realrepo" ${reference:+"$reference"} ${depth:+"$depth"} || exit
265 sanitize_submodule_env
267 # ash fails to wordsplit ${branch:+-b "$branch"...}
269 '') git checkout -f -q ;;
270 ?*) git checkout -f -q -B "$branch" "origin/$branch" ;;
272 ) || die "$(eval_gettext "Unable to checkout submodule '\$sm_path'")"
274 git config submodule."$sm_name".url "$realrepo"
276 git add --no-warn-embedded-repo $force "$sm_path" ||
277 die "$(eval_gettext "Failed to add submodule '\$sm_path'")"
279 git config -f .gitmodules submodule."$sm_name".path "$sm_path" &&
280 git config -f .gitmodules submodule."$sm_name".url "$repo" &&
283 git config -f .gitmodules submodule."$sm_name".branch "$branch"
285 git add --force .gitmodules ||
286 die "$(eval_gettext "Failed to register submodule '\$sm_path'")"
288 # NEEDSWORK: In a multi-working-tree world, this needs to be
289 # set in the per-worktree config.
290 if git config --get submodule.active >/dev/null
292 # If the submodule being adding isn't already covered by the
293 # current configured pathspec, set the submodule's active flag
294 if ! git submodule--helper is-active "$sm_path"
296 git config submodule."$sm_name".active "true"
299 git config submodule."$sm_name".active "true"
304 # Execute an arbitrary command sequence in each checked out
307 # $@ = command to execute
311 # parse $args after "submodule ... foreach".
333 # dup stdin so that it can be restored when running the external
334 # command in the subshell (and a recursive call to this function)
338 git submodule--helper list --prefix "$wt_prefix" ||
341 while read -r mode sha1 stage sm_path
343 die_if_unmatched "$mode" "$sha1"
344 if test -e "$sm_path"/.git
346 displaypath=$(git submodule--helper relative-path "$prefix$sm_path" "$wt_prefix")
347 say "$(eval_gettext "Entering '\$displaypath'")"
348 name=$(git submodule--helper name "$sm_path")
350 prefix="$prefix$sm_path/"
351 sanitize_submodule_env
353 sm_path=$(git submodule--helper relative-path "$sm_path" "$wt_prefix") &&
354 # we make $path available to scripts ...
362 if test -n "$recursive"
364 cmd_foreach "--recursive" "$@"
367 die "$(eval_gettext "Stopping at '\$displaypath'; script returned non-zero status.")"
373 # Register submodules in .git/config
375 # $@ = requested paths (default to all)
379 # parse $args after "submodule ... init".
400 git ${wt_prefix:+-C "$wt_prefix"} ${prefix:+--super-prefix "$prefix"} submodule--helper init ${GIT_QUIET:+--quiet} "$@"
404 # Unregister submodules from .git/config and remove their work tree
408 # parse $args after "submodule ... deinit".
436 if test -n "$deinit_all" && test "$#" -ne 0
438 echo >&2 "$(eval_gettext "pathspec and --all are incompatible")"
441 if test $# = 0 && test -z "$deinit_all"
443 die "$(eval_gettext "Use '--all' if you really want to deinitialize all submodules")"
447 git submodule--helper list --prefix "$wt_prefix" "$@" ||
450 while read -r mode sha1 stage sm_path
452 die_if_unmatched "$mode" "$sha1"
453 name=$(git submodule--helper name "$sm_path") || exit
455 displaypath=$(git submodule--helper relative-path "$sm_path" "$wt_prefix")
457 # Remove the submodule work tree (unless the user already did it)
458 if test -d "$sm_path"
460 # Protect submodules containing a .git directory
461 if test -d "$sm_path/.git"
463 die "$(eval_gettext "\
464 Submodule work tree '\$displaypath' contains a .git directory
465 (use 'rm -rf' if you really want to remove it including all of its history)")"
470 git rm -qn "$sm_path" ||
471 die "$(eval_gettext "Submodule work tree '\$displaypath' contains local modifications; use '-f' to discard them")"
474 say "$(eval_gettext "Cleared directory '\$displaypath'")" ||
475 say "$(eval_gettext "Could not remove submodule work tree '\$displaypath'")"
478 mkdir "$sm_path" || say "$(eval_gettext "Could not create empty submodule directory '\$displaypath'")"
480 # Remove the .git/config entries (unless the user already did it)
481 if test -n "$(git config --get-regexp submodule."$name\.")"
483 # Remove the whole section so we have a clean state when
484 # the user later decides to init this submodule again
485 url=$(git config submodule."$name".url)
486 git config --remove-section submodule."$name" 2>/dev/null &&
487 say "$(eval_gettext "Submodule '\$name' (\$url) unregistered for path '\$displaypath'")"
492 is_tip_reachable () (
493 sanitize_submodule_env &&
495 rev=$(git rev-list -n 1 "$2" --not --all 2>/dev/null) &&
499 fetch_in_submodule () (
500 sanitize_submodule_env &&
507 git fetch $(get_default_remote) "$@" ;;
512 # Update each submodule path to correct revision, using clone and checkout as needed
514 # $@ = requested paths (default to all)
518 # parse $args after "submodule ... update".
526 progress="--progress"
544 case "$2" in '') usage ;; esac
545 reference="--reference=$2"
561 recommend_shallow="--recommend-shallow"
563 --no-recommend-shallow)
564 recommend_shallow="--no-recommend-shallow"
567 case "$2" in '') usage ;; esac
575 case "$2" in '') usage ;; esac
598 cmd_init "--" "$@" || return
602 git submodule--helper update-clone ${GIT_QUIET:+--quiet} \
603 ${progress:+"$progress"} \
604 ${wt_prefix:+--prefix "$wt_prefix"} \
605 ${prefix:+--recursive-prefix "$prefix"} \
606 ${update:+--update "$update"} \
607 ${reference:+"$reference"} \
608 ${depth:+--depth "$depth"} \
609 ${recommend_shallow:+"$recommend_shallow"} \
611 "$@" || echo "#unmatched" $?
614 while read -r mode sha1 stage just_cloned sm_path
616 die_if_unmatched "$mode" "$sha1"
618 name=$(git submodule--helper name "$sm_path") || exit
619 if ! test -z "$update"
621 update_module=$update
623 update_module=$(git config submodule."$name".update)
624 if test -z "$update_module"
626 update_module="checkout"
630 displaypath=$(git submodule--helper relative-path "$prefix$sm_path" "$wt_prefix")
632 if test $just_cloned -eq 1
635 case "$update_module" in
636 merge | rebase | none)
637 update_module=checkout ;;
640 subsha1=$(sanitize_submodule_env; cd "$sm_path" &&
641 git rev-parse --verify HEAD) ||
642 die "$(eval_gettext "Unable to find current revision in submodule path '\$displaypath'")"
647 branch=$(git submodule--helper remote-branch "$sm_path")
648 if test -z "$nofetch"
650 # Fetch remote before determining tracking $sha1
651 fetch_in_submodule "$sm_path" $depth ||
652 die "$(eval_gettext "Unable to fetch in submodule path '\$sm_path'")"
654 remote_name=$(sanitize_submodule_env; cd "$sm_path" && get_default_remote)
655 sha1=$(sanitize_submodule_env; cd "$sm_path" &&
656 git rev-parse --verify "${remote_name}/${branch}") ||
657 die "$(eval_gettext "Unable to find current \${remote_name}/\${branch} revision in submodule path '\$sm_path'")"
660 if test "$subsha1" != "$sha1" || test -n "$force"
663 # If we don't already have a -f flag and the submodule has never been checked out
664 if test -z "$subsha1" && test -z "$force"
669 if test -z "$nofetch"
671 # Run fetch only if $sha1 isn't present or it
672 # is not reachable from a ref.
673 is_tip_reachable "$sm_path" "$sha1" ||
674 fetch_in_submodule "$sm_path" $depth ||
675 die "$(eval_gettext "Unable to fetch in submodule path '\$displaypath'")"
677 # Now we tried the usual fetch, but $sha1 may
678 # not be reachable from any of the refs
679 is_tip_reachable "$sm_path" "$sha1" ||
680 fetch_in_submodule "$sm_path" $depth "$sha1" ||
681 die "$(eval_gettext "Fetched in submodule path '\$displaypath', but it did not contain \$sha1. Direct fetching of that commit failed.")"
685 case "$update_module" in
687 command="git checkout $subforce -q"
688 die_msg="$(eval_gettext "Unable to checkout '\$sha1' in submodule path '\$displaypath'")"
689 say_msg="$(eval_gettext "Submodule path '\$displaypath': checked out '\$sha1'")"
693 die_msg="$(eval_gettext "Unable to rebase '\$sha1' in submodule path '\$displaypath'")"
694 say_msg="$(eval_gettext "Submodule path '\$displaypath': rebased into '\$sha1'")"
695 must_die_on_failure=yes
699 die_msg="$(eval_gettext "Unable to merge '\$sha1' in submodule path '\$displaypath'")"
700 say_msg="$(eval_gettext "Submodule path '\$displaypath': merged in '\$sha1'")"
701 must_die_on_failure=yes
704 command="${update_module#!}"
705 die_msg="$(eval_gettext "Execution of '\$command \$sha1' failed in submodule path '\$displaypath'")"
706 say_msg="$(eval_gettext "Submodule path '\$displaypath': '\$command \$sha1'")"
707 must_die_on_failure=yes
710 die "$(eval_gettext "Invalid update mode '$update_module' for submodule '$name'")"
713 if (sanitize_submodule_env; cd "$sm_path" && $command "$sha1")
716 elif test -n "$must_die_on_failure"
718 die_with_status 2 "$die_msg"
720 err="${err};$die_msg"
725 if test -n "$recursive"
728 prefix=$(git submodule--helper relative-path "$prefix$sm_path/" "$wt_prefix")
730 sanitize_submodule_env
737 die_msg="$(eval_gettext "Failed to recurse into submodule path '\$displaypath'")"
740 err="${err};$die_msg"
743 die_with_status $res "$die_msg"
767 # Show commit summary for submodules in index or working tree
769 # If '--cached' is given, show summary between index and given commit,
770 # or between working tree and given commit
772 # $@ = [commit (default 'HEAD'),] requested paths (default all)
779 # parse $args after "submodule ... summary".
794 isnumber "$summary_limit" || usage
798 summary_limit="${1#--summary-limit=}"
799 isnumber "$summary_limit" || usage
815 test $summary_limit = 0 && return
817 if rev=$(git rev-parse -q --verify --default HEAD ${1+"$1"})
821 elif test -z "$1" || test "$1" = "HEAD"
823 # before the first commit: compare with an empty tree
824 head=$(git hash-object -w -t tree --stdin </dev/null)
825 test -z "$1" || shift
833 die "$(gettext "The --cached option cannot be used with the --files option")"
839 eval "set $(git rev-parse --sq --prefix "$wt_prefix" -- "$@")"
840 # Get modified modules cared by user
841 modules=$(git $diff_cmd $cached --ignore-submodules=dirty --raw $head -- "$@" |
842 sane_egrep '^:([0-7]* )?160000' |
843 while read -r mod_src mod_dst sha1_src sha1_dst status sm_path
845 # Always show modules deleted or type-changed (blob<->module)
846 if test "$status" = D || test "$status" = T
848 printf '%s\n' "$sm_path"
851 # Respect the ignore setting for --for-status.
852 if test -n "$for_status"
854 name=$(git submodule--helper name "$sm_path")
855 ignore_config=$(get_submodule_config "$name" ignore none)
856 test $status != A && test $ignore_config = all && continue
858 # Also show added or modified modules which are checked out
859 GIT_DIR="$sm_path/.git" git rev-parse --git-dir >/dev/null 2>&1 &&
860 printf '%s\n' "$sm_path"
864 test -z "$modules" && return
866 git $diff_cmd $cached --ignore-submodules=dirty --raw $head -- $modules |
867 sane_egrep '^:([0-7]* )?160000' |
869 while read -r mod_src mod_dst sha1_src sha1_dst status name
871 if test -z "$cached" &&
872 test $sha1_dst = 0000000000000000000000000000000000000000
876 sha1_dst=$(GIT_DIR="$name/.git" git rev-parse HEAD)
878 100644 | 100755 | 120000)
879 sha1_dst=$(git hash-object $name)
885 eval_gettextln "unexpected mode \$mod_dst" >&2
892 test $mod_src = 160000 &&
893 ! GIT_DIR="$name/.git" git rev-parse -q --verify $sha1_src^0 >/dev/null &&
896 test $mod_dst = 160000 &&
897 ! GIT_DIR="$name/.git" git rev-parse -q --verify $sha1_dst^0 >/dev/null &&
900 display_name=$(git submodule--helper relative-path "$name" "$wt_prefix")
903 case "$missing_src,$missing_dst" in
905 errmsg="$(eval_gettext " Warn: \$display_name doesn't contain commit \$sha1_src")"
908 errmsg="$(eval_gettext " Warn: \$display_name doesn't contain commit \$sha1_dst")"
911 errmsg="$(eval_gettext " Warn: \$display_name doesn't contain commits \$sha1_src and \$sha1_dst")"
916 if test $mod_src = 160000 && test $mod_dst = 160000
918 range="$sha1_src...$sha1_dst"
919 elif test $mod_src = 160000
925 GIT_DIR="$name/.git" \
926 git rev-list --first-parent $range -- | wc -l
928 total_commits=" ($(($total_commits + 0)))"
932 sha1_abbr_src=$(echo $sha1_src | cut -c1-7)
933 sha1_abbr_dst=$(echo $sha1_dst | cut -c1-7)
936 blob="$(gettext "blob")"
937 submodule="$(gettext "submodule")"
938 if test $mod_dst = 160000
940 echo "* $display_name $sha1_abbr_src($blob)->$sha1_abbr_dst($submodule)$total_commits:"
942 echo "* $display_name $sha1_abbr_src($submodule)->$sha1_abbr_dst($blob)$total_commits:"
945 echo "* $display_name $sha1_abbr_src...$sha1_abbr_dst$total_commits:"
949 # Don't give error msg for modification whose dst is not submodule
950 # i.e. deleted or changed to blob
951 test $mod_dst = 160000 && echo "$errmsg"
953 if test $mod_src = 160000 && test $mod_dst = 160000
956 test $summary_limit -gt 0 && limit="-$summary_limit"
957 GIT_DIR="$name/.git" \
958 git log $limit --pretty='format: %m %s' \
959 --first-parent $sha1_src...$sha1_dst
960 elif test $mod_dst = 160000
962 GIT_DIR="$name/.git" \
963 git log --pretty='format: > %s' -1 $sha1_dst
965 GIT_DIR="$name/.git" \
966 git log --pretty='format: < %s' -1 $sha1_src
974 # List all submodules, prefixed with:
975 # - submodule not initialized
976 # + different revision checked out
978 # If --cached was specified the revision in the index will be printed
979 # instead of the currently checked out revision.
981 # $@ = requested paths (default to all)
985 # parse $args after "submodule ... status".
1012 git ${wt_prefix:+-C "$wt_prefix"} ${prefix:+--super-prefix "$prefix"} submodule--helper status ${GIT_QUIET:+--quiet} ${cached:+--cached} ${recursive:+--recursive} "$@"
1015 # Sync remote urls for submodules
1016 # This makes the value for remote.$remote.url match the value
1017 # specified in .gitmodules.
1046 git submodule--helper list --prefix "$wt_prefix" "$@" ||
1047 echo "#unmatched" $?
1049 while read -r mode sha1 stage sm_path
1051 die_if_unmatched "$mode" "$sha1"
1053 # skip inactive submodules
1054 if ! git submodule--helper is-active "$sm_path"
1059 name=$(git submodule--helper name "$sm_path")
1060 url=$(git config -f .gitmodules --get submodule."$name".url)
1062 # Possibly a url relative to parent
1065 # rewrite foo/bar as ../.. to find path from
1066 # submodule work tree to superproject work tree
1067 up_path="$(printf '%s\n' "$sm_path" | sed "s/[^/][^/]*/../g")" &&
1068 # guarantee a trailing /
1069 up_path=${up_path%/}/ &&
1070 # path from submodule work tree to submodule origin repo
1071 sub_origin_url=$(git submodule--helper resolve-relative-url "$url" "$up_path") &&
1072 # path from superproject work tree to submodule origin repo
1073 super_config_url=$(git submodule--helper resolve-relative-url "$url") || exit
1076 sub_origin_url="$url"
1077 super_config_url="$url"
1081 displaypath=$(git submodule--helper relative-path "$prefix$sm_path" "$wt_prefix")
1082 say "$(eval_gettext "Synchronizing submodule url for '\$displaypath'")"
1083 git config submodule."$name".url "$super_config_url"
1085 if test -e "$sm_path"/.git
1088 sanitize_submodule_env
1090 remote=$(get_default_remote)
1091 git config remote."$remote".url "$sub_origin_url"
1093 if test -n "$recursive"
1095 prefix="$prefix$sm_path/"
1105 git submodule--helper absorb-git-dirs --prefix "$wt_prefix" "$@"
1108 # This loop parses the command line arguments to find the
1109 # subcommand name to dispatch. Parsing of the subcommand specific
1110 # options are primarily done by the subcommand implementations.
1111 # Subcommand specific options such as --branch and --cached are
1112 # parsed here as well, for backward compatibility.
1114 while test $# != 0 && test -z "$command"
1117 add | foreach | init | deinit | update | status | summary | sync | absorbgitdirs)
1147 # No command word defaults to "status"
1148 if test -z "$command"
1158 # "-b branch" is accepted only by "add"
1159 if test -n "$branch" && test "$command" != add
1164 # "--cached" is accepted only by "status" and "summary"
1165 if test -n "$cached" && test "$command" != status && test "$command" != summary