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] [--cached]
   9    or: $dashless [--quiet] add [-b <branch>] [-f|--force] [--name <name>] [--reference <repository>] [--] <repository> [<path>]
  10    or: $dashless [--quiet] status [--cached] [--recursive] [--] [<path>...]
  11    or: $dashless [--quiet] init [--] [<path>...]
  12    or: $dashless [--quiet] deinit [-f|--force] (--all| [--] <path>...)
  13    or: $dashless [--quiet] update [--init] [--remote] [-N|--no-fetch] [-f|--force] [--checkout|--merge|--rebase] [--[no-]recommend-shallow] [--reference <repository>] [--recursive] [--[no-]single-branch] [--] [<path>...]
  14    or: $dashless [--quiet] set-branch (--default|--branch <branch>) [--] <path>
  15    or: $dashless [--quiet] set-url [--] <path> <newurl>
  16    or: $dashless [--quiet] summary [--cached|--files] [--summary-limit <n>] [commit] [--] [<path>...]
  17    or: $dashless [--quiet] foreach [--recursive] <command>
  18    or: $dashless [--quiet] sync [--recursive] [--] [<path>...]
  19    or: $dashless [--quiet] absorbgitdirs [--] [<path>...]"
  20 OPTIONS_SPEC=
  21 SUBDIRECTORY_OK=Yes
  22 . git-sh-setup
  23 require_work_tree
  24 wt_prefix=$(git rev-parse --show-prefix)
  25 cd_to_toplevel
  26
  27 # Tell the rest of git that any URLs we get don't come
  28 # directly from the user, so it can apply policy as appropriate.
  29 GIT_PROTOCOL_FROM_USER=0
  30 export GIT_PROTOCOL_FROM_USER
  31
  32 command=
  33 branch=
  34 force=
  35 reference=
  36 cached=
  37 recursive=
  38 init=
  39 require_init=
  40 files=
  41 remote=
  42 nofetch=
  43 update=
  44 prefix=
  45 custom_name=
  46 depth=
  47 progress=
  48 dissociate=
  49 single_branch=
  50 jobs=
  51 recommend_shallow=
  52
  53 die_if_unmatched ()
  54 {
  55         if test "$1" = "#unmatched"
  56         then
  57                 exit ${2:-1}
  58         fi
  59 }
  60
  61 isnumber()
  62 {
  63         n=$(($1 + 0)) 2>/dev/null && test "$n" = "$1"
  64 }
  65
  66 # Given a full hex object ID, is this the zero OID?
  67 is_zero_oid () {
  68         echo "$1" | sane_egrep '^0+$' >/dev/null 2>&1
  69 }
  70
  71 # Sanitize the local git environment for use within a submodule. We
  72 # can't simply use clear_local_git_env since we want to preserve some
  73 # of the settings from GIT_CONFIG_PARAMETERS.
  74 sanitize_submodule_env()
  75 {
  76         save_config=$GIT_CONFIG_PARAMETERS
  77         clear_local_git_env
  78         GIT_CONFIG_PARAMETERS=$save_config
  79         export GIT_CONFIG_PARAMETERS
  80 }
  81
  82 #
  83 # Add a new submodule to the working tree, .gitmodules and the index
  84 #
  85 # $@ = repo path
  86 #
  87 # optional branch is stored in global branch variable
  88 #
  89 cmd_add()
  90 {
  91         # parse $args after "submodule ... add".
  92         reference_path=
  93         while test $# -ne 0
  94         do
  95                 case "$1" in
  96                 -b | --branch)
  97                         case "$2" in '') usage ;; esac
  98                         branch=$2
  99                         shift
 100                         ;;
 101                 -f | --force)
 102                         force=$1
 103                         ;;
 104                 -q|--quiet)
 105                         GIT_QUIET=1
 106                         ;;
 107                 --progress)
 108                         progress=1
 109                         ;;
 110                 --reference)
 111                         case "$2" in '') usage ;; esac
 112                         reference_path=$2
 113                         shift
 114                         ;;
 115                 --reference=*)
 116                         reference_path="${1#--reference=}"
 117                         ;;
 118                 --dissociate)
 119                         dissociate=1
 120                         ;;
 121                 --name)
 122                         case "$2" in '') usage ;; esac
 123                         custom_name=$2
 124                         shift
 125                         ;;
 126                 --depth)
 127                         case "$2" in '') usage ;; esac
 128                         depth="--depth=$2"
 129                         shift
 130                         ;;
 131                 --depth=*)
 132                         depth=$1
 133                         ;;
 134                 --)
 135                         shift
 136                         break
 137                         ;;
 138                 -*)
 139                         usage
 140                         ;;
 141                 *)
 142                         break
 143                         ;;
 144                 esac
 145                 shift
 146         done
 147
 148         if ! git submodule--helper config --check-writeable >/dev/null 2>&1
 149         then
 150                  die "fatal: $(eval_gettext "please make sure that the .gitmodules file is in the working tree")"
 151         fi
 152
 153         if test -n "$reference_path"
 154         then
 155                 is_absolute_path "$reference_path" ||
 156                 reference_path="$wt_prefix$reference_path"
 157
 158                 reference="--reference=$reference_path"
 159         fi
 160
 161         repo=$1
 162         sm_path=$2
 163
 164         if test -z "$sm_path"; then
 165                 sm_path=$(printf '%s\n' "$repo" |
 166                         sed -e 's|/$||' -e 's|:*/*\.git$||' -e 's|.*[/:]||g')
 167         fi
 168
 169         if test -z "$repo" || test -z "$sm_path"; then
 170                 usage
 171         fi
 172
 173         is_absolute_path "$sm_path" || sm_path="$wt_prefix$sm_path"
 174
 175         # assure repo is absolute or relative to parent
 176         case "$repo" in
 177         ./*|../*)
 178                 test -z "$wt_prefix" ||
 179                 die "fatal: $(gettext "Relative path can only be used from the toplevel of the working tree")"
 180
 181                 # dereference source url relative to parent's url
 182                 realrepo=$(git submodule--helper resolve-relative-url "$repo") || exit
 183                 ;;
 184         *:*|/*)
 185                 # absolute url
 186                 realrepo=$repo
 187                 ;;
 188         *)
 189                 die "fatal: $(eval_gettext "repo URL: '\$repo' must be absolute or begin with ./|../")"
 190         ;;
 191         esac
 192
 193         # normalize path:
 194         # multiple //; leading ./; /./; /../; trailing /
 195         sm_path=$(printf '%s/\n' "$sm_path" |
 196                 sed -e '
 197                         s|//*|/|g
 198                         s|^\(\./\)*||
 199                         s|/\(\./\)*|/|g
 200                         :start
 201                         s|\([^/]*\)/\.\./||
 202                         tstart
 203                         s|/*$||
 204                 ')
 205         if test -z "$force"
 206         then
 207                 git ls-files --error-unmatch "$sm_path" > /dev/null 2>&1 &&
 208                 die "fatal: $(eval_gettext "'\$sm_path' already exists in the index")"
 209         else
 210                 git ls-files -s "$sm_path" | sane_grep -v "^160000" > /dev/null 2>&1 &&
 211                 die "fatal: $(eval_gettext "'\$sm_path' already exists in the index and is not a submodule")"
 212         fi
 213
 214         if test -d "$sm_path" &&
 215                 test -z $(git -C "$sm_path" rev-parse --show-cdup 2>/dev/null)
 216         then
 217             git -C "$sm_path" rev-parse --verify -q HEAD >/dev/null ||
 218             die "fatal: $(eval_gettext "'\$sm_path' does not have a commit checked out")"
 219         fi
 220
 221         if test -z "$force"
 222         then
 223             dryerr=$(git add --dry-run --ignore-missing --no-warn-embedded-repo "$sm_path" 2>&1 >/dev/null)
 224             res=$?
 225             if test $res -ne 0
 226             then
 227                  echo >&2 "$dryerr"
 228                  exit $res
 229             fi
 230         fi
 231
 232         if test -n "$custom_name"
 233         then
 234                 sm_name="$custom_name"
 235         else
 236                 sm_name="$sm_path"
 237         fi
 238
 239         if ! git submodule--helper check-name "$sm_name"
 240         then
 241                 die "fatal: $(eval_gettext "'$sm_name' is not a valid submodule name")"
 242         fi
 243
 244         git submodule--helper add-clone ${GIT_QUIET:+--quiet} ${force:+"--force"} ${progress:+"--progress"} ${branch:+--branch "$branch"} --prefix "$wt_prefix" --path "$sm_path" --name "$sm_name" --url "$realrepo" ${reference:+"$reference"} ${dissociate:+"--dissociate"} ${depth:+"$depth"} || exit
 245         git config submodule."$sm_name".url "$realrepo"
 246
 247         git add --no-warn-embedded-repo $force "$sm_path" ||
 248         die "fatal: $(eval_gettext "Failed to add submodule '\$sm_path'")"
 249
 250         git submodule--helper config submodule."$sm_name".path "$sm_path" &&
 251         git submodule--helper config submodule."$sm_name".url "$repo" &&
 252         if test -n "$branch"
 253         then
 254                 git submodule--helper config submodule."$sm_name".branch "$branch"
 255         fi &&
 256         git add --force .gitmodules ||
 257         die "fatal: $(eval_gettext "Failed to register submodule '\$sm_path'")"
 258
 259         # NEEDSWORK: In a multi-working-tree world, this needs to be
 260         # set in the per-worktree config.
 261         if git config --get submodule.active >/dev/null
 262         then
 263                 # If the submodule being adding isn't already covered by the
 264                 # current configured pathspec, set the submodule's active flag
 265                 if ! git submodule--helper is-active "$sm_path"
 266                 then
 267                         git config submodule."$sm_name".active "true"
 268                 fi
 269         else
 270                 git config submodule."$sm_name".active "true"
 271         fi
 272 }
 273
 274 #
 275 # Execute an arbitrary command sequence in each checked out
 276 # submodule
 277 #
 278 # $@ = command to execute
 279 #
 280 cmd_foreach()
 281 {
 282         # parse $args after "submodule ... foreach".
 283         while test $# -ne 0
 284         do
 285                 case "$1" in
 286                 -q|--quiet)
 287                         GIT_QUIET=1
 288                         ;;
 289                 --recursive)
 290                         recursive=1
 291                         ;;
 292                 -*)
 293                         usage
 294                         ;;
 295                 *)
 296                         break
 297                         ;;
 298                 esac
 299                 shift
 300         done
 301
 302         git ${wt_prefix:+-C "$wt_prefix"} submodule--helper foreach ${GIT_QUIET:+--quiet} ${recursive:+--recursive} -- "$@"
 303 }
 304
 305 #
 306 # Register submodules in .git/config
 307 #
 308 # $@ = requested paths (default to all)
 309 #
 310 cmd_init()
 311 {
 312         # parse $args after "submodule ... init".
 313         while test $# -ne 0
 314         do
 315                 case "$1" in
 316                 -q|--quiet)
 317                         GIT_QUIET=1
 318                         ;;
 319                 --)
 320                         shift
 321                         break
 322                         ;;
 323                 -*)
 324                         usage
 325                         ;;
 326                 *)
 327                         break
 328                         ;;
 329                 esac
 330                 shift
 331         done
 332
 333         git ${wt_prefix:+-C "$wt_prefix"} ${prefix:+--super-prefix "$prefix"} submodule--helper init ${GIT_QUIET:+--quiet} -- "$@"
 334 }
 335
 336 #
 337 # Unregister submodules from .git/config and remove their work tree
 338 #
 339 cmd_deinit()
 340 {
 341         # parse $args after "submodule ... deinit".
 342         deinit_all=
 343         while test $# -ne 0
 344         do
 345                 case "$1" in
 346                 -f|--force)
 347                         force=$1
 348                         ;;
 349                 -q|--quiet)
 350                         GIT_QUIET=1
 351                         ;;
 352                 --all)
 353                         deinit_all=t
 354                         ;;
 355                 --)
 356                         shift
 357                         break
 358                         ;;
 359                 -*)
 360                         usage
 361                         ;;
 362                 *)
 363                         break
 364                         ;;
 365                 esac
 366                 shift
 367         done
 368
 369         git ${wt_prefix:+-C "$wt_prefix"} submodule--helper deinit ${GIT_QUIET:+--quiet} ${force:+--force} ${deinit_all:+--all} -- "$@"
 370 }
 371
 372 is_tip_reachable () (
 373         sanitize_submodule_env &&
 374         cd "$1" &&
 375         rev=$(git rev-list -n 1 "$2" --not --all 2>/dev/null) &&
 376         test -z "$rev"
 377 )
 378
 379 # usage: fetch_in_submodule <module_path> [<depth>] [<sha1>]
 380 # Because arguments are positional, use an empty string to omit <depth>
 381 # but include <sha1>.
 382 fetch_in_submodule () (
 383         sanitize_submodule_env &&
 384         cd "$1" &&
 385         if test $# -eq 3
 386         then
 387                 echo "$3" | git fetch ${GIT_QUIET:+--quiet} --stdin ${2:+"$2"}
 388         else
 389                 git fetch ${GIT_QUIET:+--quiet} ${2:+"$2"}
 390         fi
 391 )
 392
 393 #
 394 # Update each submodule path to correct revision, using clone and checkout as needed
 395 #
 396 # $@ = requested paths (default to all)
 397 #
 398 cmd_update()
 399 {
 400         # parse $args after "submodule ... update".
 401         while test $# -ne 0
 402         do
 403                 case "$1" in
 404                 -q|--quiet)
 405                         GIT_QUIET=1
 406                         ;;
 407                 -v)
 408                         unset GIT_QUIET
 409                         ;;
 410                 --progress)
 411                         progress=1
 412                         ;;
 413                 -i|--init)
 414                         init=1
 415                         ;;
 416                 --require-init)
 417                         init=1
 418                         require_init=1
 419                         ;;
 420                 --remote)
 421                         remote=1
 422                         ;;
 423                 -N|--no-fetch)
 424                         nofetch=1
 425                         ;;
 426                 -f|--force)
 427                         force=$1
 428                         ;;
 429                 -r|--rebase)
 430                         update="rebase"
 431                         ;;
 432                 --reference)
 433                         case "$2" in '') usage ;; esac
 434                         reference="--reference=$2"
 435                         shift
 436                         ;;
 437                 --reference=*)
 438                         reference="$1"
 439                         ;;
 440                 --dissociate)
 441                         dissociate=1
 442                         ;;
 443                 -m|--merge)
 444                         update="merge"
 445                         ;;
 446                 --recursive)
 447                         recursive=1
 448                         ;;
 449                 --checkout)
 450                         update="checkout"
 451                         ;;
 452                 --recommend-shallow)
 453                         recommend_shallow="--recommend-shallow"
 454                         ;;
 455                 --no-recommend-shallow)
 456                         recommend_shallow="--no-recommend-shallow"
 457                         ;;
 458                 --depth)
 459                         case "$2" in '') usage ;; esac
 460                         depth="--depth=$2"
 461                         shift
 462                         ;;
 463                 --depth=*)
 464                         depth=$1
 465                         ;;
 466                 -j|--jobs)
 467                         case "$2" in '') usage ;; esac
 468                         jobs="--jobs=$2"
 469                         shift
 470                         ;;
 471                 --jobs=*)
 472                         jobs=$1
 473                         ;;
 474                 --single-branch)
 475                         single_branch="--single-branch"
 476                         ;;
 477                 --no-single-branch)
 478                         single_branch="--no-single-branch"
 479                         ;;
 480                 --)
 481                         shift
 482                         break
 483                         ;;
 484                 -*)
 485                         usage
 486                         ;;
 487                 *)
 488                         break
 489                         ;;
 490                 esac
 491                 shift
 492         done
 493
 494         if test -n "$init"
 495         then
 496                 cmd_init "--" "$@" || return
 497         fi
 498
 499         {
 500         git submodule--helper update-clone ${GIT_QUIET:+--quiet} \
 501                 ${progress:+"--progress"} \
 502                 ${wt_prefix:+--prefix "$wt_prefix"} \
 503                 ${prefix:+--recursive-prefix "$prefix"} \
 504                 ${update:+--update "$update"} \
 505                 ${reference:+"$reference"} \
 506                 ${dissociate:+"--dissociate"} \
 507                 ${depth:+--depth "$depth"} \
 508                 ${require_init:+--require-init} \
 509                 $single_branch \
 510                 $recommend_shallow \
 511                 $jobs \
 512                 -- \
 513                 "$@" || echo "#unmatched" $?
 514         } | {
 515         err=
 516         while read -r quickabort sha1 just_cloned sm_path
 517         do
 518                 die_if_unmatched "$quickabort" "$sha1"
 519
 520                 git submodule--helper ensure-core-worktree "$sm_path" || exit 1
 521
 522                 update_module=$(git submodule--helper update-module-mode $just_cloned "$sm_path" $update)
 523
 524                 displaypath=$(git submodule--helper relative-path "$prefix$sm_path" "$wt_prefix")
 525
 526                 if test $just_cloned -eq 1
 527                 then
 528                         subsha1=
 529                 else
 530                         subsha1=$(sanitize_submodule_env; cd "$sm_path" &&
 531                                 git rev-parse --verify HEAD) ||
 532                         die "fatal: $(eval_gettext "Unable to find current revision in submodule path '\$displaypath'")"
 533                 fi
 534
 535                 if test -n "$remote"
 536                 then
 537                         branch=$(git submodule--helper remote-branch "$sm_path")
 538                         if test -z "$nofetch"
 539                         then
 540                                 # Fetch remote before determining tracking $sha1
 541                                 fetch_in_submodule "$sm_path" $depth ||
 542                                 die "fatal: $(eval_gettext "Unable to fetch in submodule path '\$sm_path'")"
 543                         fi
 544                         remote_name=$(sanitize_submodule_env; cd "$sm_path" && git submodule--helper print-default-remote)
 545                         sha1=$(sanitize_submodule_env; cd "$sm_path" &&
 546                                 git rev-parse --verify "${remote_name}/${branch}") ||
 547                         die "fatal: $(eval_gettext "Unable to find current \${remote_name}/\${branch} revision in submodule path '\$sm_path'")"
 548                 fi
 549
 550                 if test "$subsha1" != "$sha1" || test -n "$force"
 551                 then
 552                         subforce=$force
 553                         # If we don't already have a -f flag and the submodule has never been checked out
 554                         if test -z "$subsha1" && test -z "$force"
 555                         then
 556                                 subforce="-f"
 557                         fi
 558
 559                         if test -z "$nofetch"
 560                         then
 561                                 # Run fetch only if $sha1 isn't present or it
 562                                 # is not reachable from a ref.
 563                                 is_tip_reachable "$sm_path" "$sha1" ||
 564                                 fetch_in_submodule "$sm_path" $depth ||
 565                                 say "$(eval_gettext "Unable to fetch in submodule path '\$displaypath'; trying to directly fetch \$sha1:")"
 566
 567                                 # Now we tried the usual fetch, but $sha1 may
 568                                 # not be reachable from any of the refs
 569                                 is_tip_reachable "$sm_path" "$sha1" ||
 570                                 fetch_in_submodule "$sm_path" "$depth" "$sha1" ||
 571                                 die "fatal: $(eval_gettext "Fetched in submodule path '\$displaypath', but it did not contain \$sha1. Direct fetching of that commit failed.")"
 572                         fi
 573
 574                         must_die_on_failure=
 575                         case "$update_module" in
 576                         checkout)
 577                                 command="git checkout $subforce -q"
 578                                 die_msg="fatal: $(eval_gettext "Unable to checkout '\$sha1' in submodule path '\$displaypath'")"
 579                                 say_msg="$(eval_gettext "Submodule path '\$displaypath': checked out '\$sha1'")"
 580                                 ;;
 581                         rebase)
 582                                 command="git rebase ${GIT_QUIET:+--quiet}"
 583                                 die_msg="fatal: $(eval_gettext "Unable to rebase '\$sha1' in submodule path '\$displaypath'")"
 584                                 say_msg="$(eval_gettext "Submodule path '\$displaypath': rebased into '\$sha1'")"
 585                                 must_die_on_failure=yes
 586                                 ;;
 587                         merge)
 588                                 command="git merge ${GIT_QUIET:+--quiet}"
 589                                 die_msg="fatal: $(eval_gettext "Unable to merge '\$sha1' in submodule path '\$displaypath'")"
 590                                 say_msg="$(eval_gettext "Submodule path '\$displaypath': merged in '\$sha1'")"
 591                                 must_die_on_failure=yes
 592                                 ;;
 593                         !*)
 594                                 command="${update_module#!}"
 595                                 die_msg="fatal: $(eval_gettext "Execution of '\$command \$sha1' failed in submodule path '\$displaypath'")"
 596                                 say_msg="$(eval_gettext "Submodule path '\$displaypath': '\$command \$sha1'")"
 597                                 must_die_on_failure=yes
 598                                 ;;
 599                         *)
 600                                 die "fatal: $(eval_gettext "Invalid update mode '$update_module' for submodule path '$path'")"
 601                         esac
 602
 603                         if (sanitize_submodule_env; cd "$sm_path" && $command "$sha1")
 604                         then
 605                                 say "$say_msg"
 606                         elif test -n "$must_die_on_failure"
 607                         then
 608                                 die_with_status 2 "$die_msg"
 609                         else
 610                                 err="${err};$die_msg"
 611                                 continue
 612                         fi
 613                 fi
 614
 615                 if test -n "$recursive"
 616                 then
 617                         (
 618                                 prefix=$(git submodule--helper relative-path "$prefix$sm_path/" "$wt_prefix")
 619                                 wt_prefix=
 620                                 sanitize_submodule_env
 621                                 cd "$sm_path" &&
 622                                 eval cmd_update
 623                         )
 624                         res=$?
 625                         if test $res -gt 0
 626                         then
 627                                 die_msg="fatal: $(eval_gettext "Failed to recurse into submodule path '\$displaypath'")"
 628                                 if test $res -ne 2
 629                                 then
 630                                         err="${err};$die_msg"
 631                                         continue
 632                                 else
 633                                         die_with_status $res "$die_msg"
 634                                 fi
 635                         fi
 636                 fi
 637         done
 638
 639         if test -n "$err"
 640         then
 641                 OIFS=$IFS
 642                 IFS=';'
 643                 for e in $err
 644                 do
 645                         if test -n "$e"
 646                         then
 647                                 echo >&2 "$e"
 648                         fi
 649                 done
 650                 IFS=$OIFS
 651                 exit 1
 652         fi
 653         }
 654 }
 655
 656 #
 657 # Configures a submodule's default branch
 658 #
 659 # $@ = requested path
 660 #
 661 cmd_set_branch() {
 662         default=
 663         branch=
 664
 665         while test $# -ne 0
 666         do
 667                 case "$1" in
 668                 -q|--quiet)
 669                         # we don't do anything with this but we need to accept it
 670                         ;;
 671                 -d|--default)
 672                         default=1
 673                         ;;
 674                 -b|--branch)
 675                         case "$2" in '') usage ;; esac
 676                         branch=$2
 677                         shift
 678                         ;;
 679                 --)
 680                         shift
 681                         break
 682                         ;;
 683                 -*)
 684                         usage
 685                         ;;
 686                 *)
 687                         break
 688                         ;;
 689                 esac
 690                 shift
 691         done
 692
 693         git ${wt_prefix:+-C "$wt_prefix"} submodule--helper set-branch ${GIT_QUIET:+--quiet} ${branch:+--branch "$branch"} ${default:+--default} -- "$@"
 694 }
 695
 696 #
 697 # Configures a submodule's remote url
 698 #
 699 # $@ = requested path, requested url
 700 #
 701 cmd_set_url() {
 702         while test $# -ne 0
 703         do
 704                 case "$1" in
 705                 -q|--quiet)
 706                         GIT_QUIET=1
 707                         ;;
 708                 --)
 709                         shift
 710                         break
 711                         ;;
 712                 -*)
 713                         usage
 714                         ;;
 715                 *)
 716                         break
 717                         ;;
 718                 esac
 719                 shift
 720         done
 721
 722         git ${wt_prefix:+-C "$wt_prefix"} submodule--helper set-url ${GIT_QUIET:+--quiet} -- "$@"
 723 }
 724
 725 #
 726 # Show commit summary for submodules in index or working tree
 727 #
 728 # If '--cached' is given, show summary between index and given commit,
 729 # or between working tree and given commit
 730 #
 731 # $@ = [commit (default 'HEAD'),] requested paths (default all)
 732 #
 733 cmd_summary() {
 734         summary_limit=-1
 735         for_status=
 736         diff_cmd=diff-index
 737
 738         # parse $args after "submodule ... summary".
 739         while test $# -ne 0
 740         do
 741                 case "$1" in
 742                 --cached)
 743                         cached="$1"
 744                         ;;
 745                 --files)
 746                         files="$1"
 747                         ;;
 748                 --for-status)
 749                         for_status="$1"
 750                         ;;
 751                 -n|--summary-limit)
 752                         summary_limit="$2"
 753                         isnumber "$summary_limit" || usage
 754                         shift
 755                         ;;
 756                 --summary-limit=*)
 757                         summary_limit="${1#--summary-limit=}"
 758                         isnumber "$summary_limit" || usage
 759                         ;;
 760                 --)
 761                         shift
 762                         break
 763                         ;;
 764                 -*)
 765                         usage
 766                         ;;
 767                 *)
 768                         break
 769                         ;;
 770                 esac
 771                 shift
 772         done
 773
 774         git ${wt_prefix:+-C "$wt_prefix"} submodule--helper summary ${files:+--files} ${cached:+--cached} ${for_status:+--for-status} ${summary_limit:+-n $summary_limit} -- "$@"
 775 }
 776 #
 777 # List all submodules, prefixed with:
 778 #  - submodule not initialized
 779 #  + different revision checked out
 780 #
 781 # If --cached was specified the revision in the index will be printed
 782 # instead of the currently checked out revision.
 783 #
 784 # $@ = requested paths (default to all)
 785 #
 786 cmd_status()
 787 {
 788         # parse $args after "submodule ... status".
 789         while test $# -ne 0
 790         do
 791                 case "$1" in
 792                 -q|--quiet)
 793                         GIT_QUIET=1
 794                         ;;
 795                 --cached)
 796                         cached=1
 797                         ;;
 798                 --recursive)
 799                         recursive=1
 800                         ;;
 801                 --)
 802                         shift
 803                         break
 804                         ;;
 805                 -*)
 806                         usage
 807                         ;;
 808                 *)
 809                         break
 810                         ;;
 811                 esac
 812                 shift
 813         done
 814
 815         git ${wt_prefix:+-C "$wt_prefix"} submodule--helper status ${GIT_QUIET:+--quiet} ${cached:+--cached} ${recursive:+--recursive} -- "$@"
 816 }
 817 #
 818 # Sync remote urls for submodules
 819 # This makes the value for remote.$remote.url match the value
 820 # specified in .gitmodules.
 821 #
 822 cmd_sync()
 823 {
 824         while test $# -ne 0
 825         do
 826                 case "$1" in
 827                 -q|--quiet)
 828                         GIT_QUIET=1
 829                         shift
 830                         ;;
 831                 --recursive)
 832                         recursive=1
 833                         shift
 834                         ;;
 835                 --)
 836                         shift
 837                         break
 838                         ;;
 839                 -*)
 840                         usage
 841                         ;;
 842                 *)
 843                         break
 844                         ;;
 845                 esac
 846         done
 847
 848         git ${wt_prefix:+-C "$wt_prefix"} submodule--helper sync ${GIT_QUIET:+--quiet} ${recursive:+--recursive} -- "$@"
 849 }
 850
 851 cmd_absorbgitdirs()
 852 {
 853         git submodule--helper absorb-git-dirs --prefix "$wt_prefix" "$@"
 854 }
 855
 856 # This loop parses the command line arguments to find the
 857 # subcommand name to dispatch.  Parsing of the subcommand specific
 858 # options are primarily done by the subcommand implementations.
 859 # Subcommand specific options such as --branch and --cached are
 860 # parsed here as well, for backward compatibility.
 861
 862 while test $# != 0 && test -z "$command"
 863 do
 864         case "$1" in
 865         add | foreach | init | deinit | update | set-branch | set-url | status | summary | sync | absorbgitdirs)
 866                 command=$1
 867                 ;;
 868         -q|--quiet)
 869                 GIT_QUIET=1
 870                 ;;
 871         -b|--branch)
 872                 case "$2" in
 873                 '')
 874                         usage
 875                         ;;
 876                 esac
 877                 branch="$2"; shift
 878                 ;;
 879         --cached)
 880                 cached="$1"
 881                 ;;
 882         --)
 883                 break
 884                 ;;
 885         -*)
 886                 usage
 887                 ;;
 888         *)
 889                 break
 890                 ;;
 891         esac
 892         shift
 893 done
 894
 895 # No command word defaults to "status"
 896 if test -z "$command"
 897 then
 898     if test $# = 0
 899     then
 900         command=status
 901     else
 902         usage
 903     fi
 904 fi
 905
 906 # "-b branch" is accepted only by "add" and "set-branch"
 907 if test -n "$branch" && (test "$command" != add || test "$command" != set-branch)
 908 then
 909         usage
 910 fi
 911
 912 # "--cached" is accepted only by "status" and "summary"
 913 if test -n "$cached" && test "$command" != status && test "$command" != summary
 914 then
 915         usage
 916 fi
 917
 918 "cmd_$(echo $command | sed -e s/-/_/g)" "$@"