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: $dashless [--quiet] absorbgitdirs [--] [<path>...]"
  20 OPTIONS_SPEC=
  21 SUBDIRECTORY_OK=Yes
  22 . git-sh-setup
  23 . git-parse-remote
  24 require_work_tree
  25 wt_prefix=$(git rev-parse --show-prefix)
  26 cd_to_toplevel
  27
  28 # Tell the rest of git that any URLs we get don't come
  29 # directly from the user, so it can apply policy as appropriate.
  30 GIT_PROTOCOL_FROM_USER=0
  31 export GIT_PROTOCOL_FROM_USER
  32
  33 command=
  34 branch=
  35 force=
  36 reference=
  37 cached=
  38 recursive=
  39 init=
  40 require_init=
  41 files=
  42 remote=
  43 nofetch=
  44 update=
  45 prefix=
  46 custom_name=
  47 depth=
  48 progress=
  49 dissociate=
  50 single_branch=
  51 jobs=
  52 recommend_shallow=
  53
  54 die_if_unmatched ()
  55 {
  56         if test "$1" = "#unmatched"
  57         then
  58                 exit ${2:-1}
  59         fi
  60 }
  61
  62 isnumber()
  63 {
  64         n=$(($1 + 0)) 2>/dev/null && test "$n" = "$1"
  65 }
  66
  67 # Given a full hex object ID, is this the zero OID?
  68 is_zero_oid () {
  69         echo "$1" | sane_egrep '^0+$' >/dev/null 2>&1
  70 }
  71
  72 # Sanitize the local git environment for use within a submodule. We
  73 # can't simply use clear_local_git_env since we want to preserve some
  74 # of the settings from GIT_CONFIG_PARAMETERS.
  75 sanitize_submodule_env()
  76 {
  77         save_config=$GIT_CONFIG_PARAMETERS
  78         clear_local_git_env
  79         GIT_CONFIG_PARAMETERS=$save_config
  80         export GIT_CONFIG_PARAMETERS
  81 }
  82
  83 #
  84 # Add a new submodule to the working tree, .gitmodules and the index
  85 #
  86 # $@ = repo path
  87 #
  88 # optional branch is stored in global branch variable
  89 #
  90 cmd_add()
  91 {
  92         # parse $args after "submodule ... add".
  93         reference_path=
  94         while test $# -ne 0
  95         do
  96                 case "$1" in
  97                 -b | --branch)
  98                         case "$2" in '') usage ;; esac
  99                         branch=$2
 100                         shift
 101                         ;;
 102                 -f | --force)
 103                         force=$1
 104                         ;;
 105                 -q|--quiet)
 106                         GIT_QUIET=1
 107                         ;;
 108                 --progress)
 109                         progress=1
 110                         ;;
 111                 --reference)
 112                         case "$2" in '') usage ;; esac
 113                         reference_path=$2
 114                         shift
 115                         ;;
 116                 --reference=*)
 117                         reference_path="${1#--reference=}"
 118                         ;;
 119                 --dissociate)
 120                         dissociate=1
 121                         ;;
 122                 --name)
 123                         case "$2" in '') usage ;; esac
 124                         custom_name=$2
 125                         shift
 126                         ;;
 127                 --depth)
 128                         case "$2" in '') usage ;; esac
 129                         depth="--depth=$2"
 130                         shift
 131                         ;;
 132                 --depth=*)
 133                         depth=$1
 134                         ;;
 135                 --)
 136                         shift
 137                         break
 138                         ;;
 139                 -*)
 140                         usage
 141                         ;;
 142                 *)
 143                         break
 144                         ;;
 145                 esac
 146                 shift
 147         done
 148
 149         if ! git submodule--helper config --check-writeable >/dev/null 2>&1
 150         then
 151                  die "$(eval_gettext "please make sure that the .gitmodules file is in the working tree")"
 152         fi
 153
 154         if test -n "$reference_path"
 155         then
 156                 is_absolute_path "$reference_path" ||
 157                 reference_path="$wt_prefix$reference_path"
 158
 159                 reference="--reference=$reference_path"
 160         fi
 161
 162         repo=$1
 163         sm_path=$2
 164
 165         if test -z "$sm_path"; then
 166                 sm_path=$(printf '%s\n' "$repo" |
 167                         sed -e 's|/$||' -e 's|:*/*\.git$||' -e 's|.*[/:]||g')
 168         fi
 169
 170         if test -z "$repo" || test -z "$sm_path"; then
 171                 usage
 172         fi
 173
 174         is_absolute_path "$sm_path" || sm_path="$wt_prefix$sm_path"
 175
 176         # assure repo is absolute or relative to parent
 177         case "$repo" in
 178         ./*|../*)
 179                 test -z "$wt_prefix" ||
 180                 die "$(gettext "Relative path can only be used from the toplevel of the working tree")"
 181
 182                 # dereference source url relative to parent's url
 183                 realrepo=$(git submodule--helper resolve-relative-url "$repo") || exit
 184                 ;;
 185         *:*|/*)
 186                 # absolute url
 187                 realrepo=$repo
 188                 ;;
 189         *)
 190                 die "$(eval_gettext "repo URL: '\$repo' must be absolute or begin with ./|../")"
 191         ;;
 192         esac
 193
 194         # normalize path:
 195         # multiple //; leading ./; /./; /../; trailing /
 196         sm_path=$(printf '%s/\n' "$sm_path" |
 197                 sed -e '
 198                         s|//*|/|g
 199                         s|^\(\./\)*||
 200                         s|/\(\./\)*|/|g
 201                         :start
 202                         s|\([^/]*\)/\.\./||
 203                         tstart
 204                         s|/*$||
 205                 ')
 206         if test -z "$force"
 207         then
 208                 git ls-files --error-unmatch "$sm_path" > /dev/null 2>&1 &&
 209                 die "$(eval_gettext "'\$sm_path' already exists in the index")"
 210         else
 211                 git ls-files -s "$sm_path" | sane_grep -v "^160000" > /dev/null 2>&1 &&
 212                 die "$(eval_gettext "'\$sm_path' already exists in the index and is not a submodule")"
 213         fi
 214
 215         if test -d "$sm_path" &&
 216                 test -z $(git -C "$sm_path" rev-parse --show-cdup 2>/dev/null)
 217         then
 218             git -C "$sm_path" rev-parse --verify -q HEAD >/dev/null ||
 219             die "$(eval_gettext "'\$sm_path' does not have a commit checked out")"
 220         fi
 221
 222         if test -z "$force"
 223         then
 224             dryerr=$(git add --dry-run --ignore-missing --no-warn-embedded-repo "$sm_path" 2>&1 >/dev/null)
 225             res=$?
 226             if test $res -ne 0
 227             then
 228                  echo >&2 "$dryerr"
 229                  exit $res
 230             fi
 231         fi
 232
 233         if test -n "$custom_name"
 234         then
 235                 sm_name="$custom_name"
 236         else
 237                 sm_name="$sm_path"
 238         fi
 239
 240         if ! git submodule--helper check-name "$sm_name"
 241         then
 242                 die "$(eval_gettext "'$sm_name' is not a valid submodule name")"
 243         fi
 244
 245         # perhaps the path exists and is already a git repo, else clone it
 246         if test -e "$sm_path"
 247         then
 248                 if test -d "$sm_path"/.git || test -f "$sm_path"/.git
 249                 then
 250                         eval_gettextln "Adding existing repo at '\$sm_path' to the index"
 251                 else
 252                         die "$(eval_gettext "'\$sm_path' already exists and is not a valid git repo")"
 253                 fi
 254
 255         else
 256                 if test -d ".git/modules/$sm_name"
 257                 then
 258                         if test -z "$force"
 259                         then
 260                                 eval_gettextln >&2 "A git directory for '\$sm_name' is found locally with remote(s):"
 261                                 GIT_DIR=".git/modules/$sm_name" GIT_WORK_TREE=. git remote -v | grep '(fetch)' | sed -e s,^,"  ", -e s,' (fetch)',, >&2
 262                                 die "$(eval_gettextln "\
 263 If you want to reuse this local git directory instead of cloning again from
 264   \$realrepo
 265 use the '--force' option. If the local git directory is not the correct repo
 266 or you are unsure what this means choose another name with the '--name' option.")"
 267                         else
 268                                 eval_gettextln "Reactivating local git directory for submodule '\$sm_name'."
 269                         fi
 270                 fi
 271                 git submodule--helper clone ${GIT_QUIET:+--quiet} ${progress:+"--progress"} --prefix "$wt_prefix" --path "$sm_path" --name "$sm_name" --url "$realrepo" ${reference:+"$reference"} ${dissociate:+"--dissociate"} ${depth:+"$depth"} || exit
 272                 (
 273                         sanitize_submodule_env
 274                         cd "$sm_path" &&
 275                         # ash fails to wordsplit ${branch:+-b "$branch"...}
 276                         case "$branch" in
 277                         '') git checkout -f -q ;;
 278                         ?*) git checkout -f -q -B "$branch" "origin/$branch" ;;
 279                         esac
 280                 ) || die "$(eval_gettext "Unable to checkout submodule '\$sm_path'")"
 281         fi
 282         git config submodule."$sm_name".url "$realrepo"
 283
 284         git add --no-warn-embedded-repo $force "$sm_path" ||
 285         die "$(eval_gettext "Failed to add submodule '\$sm_path'")"
 286
 287         git submodule--helper config submodule."$sm_name".path "$sm_path" &&
 288         git submodule--helper config submodule."$sm_name".url "$repo" &&
 289         if test -n "$branch"
 290         then
 291                 git submodule--helper config submodule."$sm_name".branch "$branch"
 292         fi &&
 293         git add --force .gitmodules ||
 294         die "$(eval_gettext "Failed to register submodule '\$sm_path'")"
 295
 296         # NEEDSWORK: In a multi-working-tree world, this needs to be
 297         # set in the per-worktree config.
 298         if git config --get submodule.active >/dev/null
 299         then
 300                 # If the submodule being adding isn't already covered by the
 301                 # current configured pathspec, set the submodule's active flag
 302                 if ! git submodule--helper is-active "$sm_path"
 303                 then
 304                         git config submodule."$sm_name".active "true"
 305                 fi
 306         else
 307                 git config submodule."$sm_name".active "true"
 308         fi
 309 }
 310
 311 #
 312 # Execute an arbitrary command sequence in each checked out
 313 # submodule
 314 #
 315 # $@ = command to execute
 316 #
 317 cmd_foreach()
 318 {
 319         # parse $args after "submodule ... foreach".
 320         while test $# -ne 0
 321         do
 322                 case "$1" in
 323                 -q|--quiet)
 324                         GIT_QUIET=1
 325                         ;;
 326                 --recursive)
 327                         recursive=1
 328                         ;;
 329                 -*)
 330                         usage
 331                         ;;
 332                 *)
 333                         break
 334                         ;;
 335                 esac
 336                 shift
 337         done
 338
 339         git ${wt_prefix:+-C "$wt_prefix"} ${prefix:+--super-prefix "$prefix"} submodule--helper foreach ${GIT_QUIET:+--quiet} ${recursive:+--recursive} -- "$@"
 340 }
 341
 342 #
 343 # Register submodules in .git/config
 344 #
 345 # $@ = requested paths (default to all)
 346 #
 347 cmd_init()
 348 {
 349         # parse $args after "submodule ... init".
 350         while test $# -ne 0
 351         do
 352                 case "$1" in
 353                 -q|--quiet)
 354                         GIT_QUIET=1
 355                         ;;
 356                 --)
 357                         shift
 358                         break
 359                         ;;
 360                 -*)
 361                         usage
 362                         ;;
 363                 *)
 364                         break
 365                         ;;
 366                 esac
 367                 shift
 368         done
 369
 370         git ${wt_prefix:+-C "$wt_prefix"} ${prefix:+--super-prefix "$prefix"} submodule--helper init ${GIT_QUIET:+--quiet} -- "$@"
 371 }
 372
 373 #
 374 # Unregister submodules from .git/config and remove their work tree
 375 #
 376 cmd_deinit()
 377 {
 378         # parse $args after "submodule ... deinit".
 379         deinit_all=
 380         while test $# -ne 0
 381         do
 382                 case "$1" in
 383                 -f|--force)
 384                         force=$1
 385                         ;;
 386                 -q|--quiet)
 387                         GIT_QUIET=1
 388                         ;;
 389                 --all)
 390                         deinit_all=t
 391                         ;;
 392                 --)
 393                         shift
 394                         break
 395                         ;;
 396                 -*)
 397                         usage
 398                         ;;
 399                 *)
 400                         break
 401                         ;;
 402                 esac
 403                 shift
 404         done
 405
 406         git ${wt_prefix:+-C "$wt_prefix"} submodule--helper deinit ${GIT_QUIET:+--quiet} ${prefix:+--prefix "$prefix"} ${force:+--force} ${deinit_all:+--all} -- "$@"
 407 }
 408
 409 is_tip_reachable () (
 410         sanitize_submodule_env &&
 411         cd "$1" &&
 412         rev=$(git rev-list -n 1 "$2" --not --all 2>/dev/null) &&
 413         test -z "$rev"
 414 )
 415
 416 fetch_in_submodule () (
 417         sanitize_submodule_env &&
 418         cd "$1" &&
 419         if test $# -eq 3
 420         then
 421                 echo "$3" | git fetch --stdin "$2"
 422         elif test "$2" -ne ""
 423         then
 424                 git fetch "$2"
 425         else
 426                 git fetch
 427         fi
 428 )
 429
 430 #
 431 # Update each submodule path to correct revision, using clone and checkout as needed
 432 #
 433 # $@ = requested paths (default to all)
 434 #
 435 cmd_update()
 436 {
 437         # parse $args after "submodule ... update".
 438         while test $# -ne 0
 439         do
 440                 case "$1" in
 441                 -q|--quiet)
 442                         GIT_QUIET=1
 443                         ;;
 444                 -v)
 445                         unset GIT_QUIET
 446                         ;;
 447                 --progress)
 448                         progress=1
 449                         ;;
 450                 -i|--init)
 451                         init=1
 452                         ;;
 453                 --require-init)
 454                         init=1
 455                         require_init=1
 456                         ;;
 457                 --remote)
 458                         remote=1
 459                         ;;
 460                 -N|--no-fetch)
 461                         nofetch=1
 462                         ;;
 463                 -f|--force)
 464                         force=$1
 465                         ;;
 466                 -r|--rebase)
 467                         update="rebase"
 468                         ;;
 469                 --reference)
 470                         case "$2" in '') usage ;; esac
 471                         reference="--reference=$2"
 472                         shift
 473                         ;;
 474                 --reference=*)
 475                         reference="$1"
 476                         ;;
 477                 --dissociate)
 478                         dissociate=1
 479                         ;;
 480                 -m|--merge)
 481                         update="merge"
 482                         ;;
 483                 --recursive)
 484                         recursive=1
 485                         ;;
 486                 --checkout)
 487                         update="checkout"
 488                         ;;
 489                 --recommend-shallow)
 490                         recommend_shallow="--recommend-shallow"
 491                         ;;
 492                 --no-recommend-shallow)
 493                         recommend_shallow="--no-recommend-shallow"
 494                         ;;
 495                 --depth)
 496                         case "$2" in '') usage ;; esac
 497                         depth="--depth=$2"
 498                         shift
 499                         ;;
 500                 --depth=*)
 501                         depth=$1
 502                         ;;
 503                 -j|--jobs)
 504                         case "$2" in '') usage ;; esac
 505                         jobs="--jobs=$2"
 506                         shift
 507                         ;;
 508                 --jobs=*)
 509                         jobs=$1
 510                         ;;
 511                 --single-branch)
 512                         single_branch="--single-branch"
 513                         ;;
 514                 --no-single-branch)
 515                         single_branch="--no-single-branch"
 516                         ;;
 517                 --)
 518                         shift
 519                         break
 520                         ;;
 521                 -*)
 522                         usage
 523                         ;;
 524                 *)
 525                         break
 526                         ;;
 527                 esac
 528                 shift
 529         done
 530
 531         if test -n "$init"
 532         then
 533                 cmd_init "--" "$@" || return
 534         fi
 535
 536         {
 537         git submodule--helper update-clone ${GIT_QUIET:+--quiet} \
 538                 ${progress:+"--progress"} \
 539                 ${wt_prefix:+--prefix "$wt_prefix"} \
 540                 ${prefix:+--recursive-prefix "$prefix"} \
 541                 ${update:+--update "$update"} \
 542                 ${reference:+"$reference"} \
 543                 ${dissociate:+"--dissociate"} \
 544                 ${depth:+--depth "$depth"} \
 545                 ${require_init:+--require-init} \
 546                 $single_branch \
 547                 $recommend_shallow \
 548                 $jobs \
 549                 -- \
 550                 "$@" || echo "#unmatched" $?
 551         } | {
 552         err=
 553         while read -r quickabort sha1 just_cloned sm_path
 554         do
 555                 die_if_unmatched "$quickabort" "$sha1"
 556
 557                 git submodule--helper ensure-core-worktree "$sm_path" || exit 1
 558
 559                 update_module=$(git submodule--helper update-module-mode $just_cloned "$sm_path" $update)
 560
 561                 displaypath=$(git submodule--helper relative-path "$prefix$sm_path" "$wt_prefix")
 562
 563                 if test $just_cloned -eq 1
 564                 then
 565                         subsha1=
 566                 else
 567                         subsha1=$(sanitize_submodule_env; cd "$sm_path" &&
 568                                 git rev-parse --verify HEAD) ||
 569                         die "$(eval_gettext "Unable to find current revision in submodule path '\$displaypath'")"
 570                 fi
 571
 572                 if test -n "$remote"
 573                 then
 574                         branch=$(git submodule--helper remote-branch "$sm_path")
 575                         if test -z "$nofetch"
 576                         then
 577                                 # Fetch remote before determining tracking $sha1
 578                                 fetch_in_submodule "$sm_path" $depth ||
 579                                 die "$(eval_gettext "Unable to fetch in submodule path '\$sm_path'")"
 580                         fi
 581                         remote_name=$(sanitize_submodule_env; cd "$sm_path" && get_default_remote)
 582                         sha1=$(sanitize_submodule_env; cd "$sm_path" &&
 583                                 git rev-parse --verify "${remote_name}/${branch}") ||
 584                         die "$(eval_gettext "Unable to find current \${remote_name}/\${branch} revision in submodule path '\$sm_path'")"
 585                 fi
 586
 587                 if test "$subsha1" != "$sha1" || test -n "$force"
 588                 then
 589                         subforce=$force
 590                         # If we don't already have a -f flag and the submodule has never been checked out
 591                         if test -z "$subsha1" && test -z "$force"
 592                         then
 593                                 subforce="-f"
 594                         fi
 595
 596                         if test -z "$nofetch"
 597                         then
 598                                 # Run fetch only if $sha1 isn't present or it
 599                                 # is not reachable from a ref.
 600                                 is_tip_reachable "$sm_path" "$sha1" ||
 601                                 fetch_in_submodule "$sm_path" $depth ||
 602                                 say "$(eval_gettext "Unable to fetch in submodule path '\$displaypath'; trying to directly fetch \$sha1:")"
 603
 604                                 # Now we tried the usual fetch, but $sha1 may
 605                                 # not be reachable from any of the refs
 606                                 is_tip_reachable "$sm_path" "$sha1" ||
 607                                 fetch_in_submodule "$sm_path" $depth "$sha1" ||
 608                                 die "$(eval_gettext "Fetched in submodule path '\$displaypath', but it did not contain \$sha1. Direct fetching of that commit failed.")"
 609                         fi
 610
 611                         must_die_on_failure=
 612                         case "$update_module" in
 613                         checkout)
 614                                 command="git checkout $subforce -q"
 615                                 die_msg="$(eval_gettext "Unable to checkout '\$sha1' in submodule path '\$displaypath'")"
 616                                 say_msg="$(eval_gettext "Submodule path '\$displaypath': checked out '\$sha1'")"
 617                                 ;;
 618                         rebase)
 619                                 command="git rebase ${GIT_QUIET:+--quiet}"
 620                                 die_msg="$(eval_gettext "Unable to rebase '\$sha1' in submodule path '\$displaypath'")"
 621                                 say_msg="$(eval_gettext "Submodule path '\$displaypath': rebased into '\$sha1'")"
 622                                 must_die_on_failure=yes
 623                                 ;;
 624                         merge)
 625                                 command="git merge ${GIT_QUIET:+--quiet}"
 626                                 die_msg="$(eval_gettext "Unable to merge '\$sha1' in submodule path '\$displaypath'")"
 627                                 say_msg="$(eval_gettext "Submodule path '\$displaypath': merged in '\$sha1'")"
 628                                 must_die_on_failure=yes
 629                                 ;;
 630                         !*)
 631                                 command="${update_module#!}"
 632                                 die_msg="$(eval_gettext "Execution of '\$command \$sha1' failed in submodule path '\$displaypath'")"
 633                                 say_msg="$(eval_gettext "Submodule path '\$displaypath': '\$command \$sha1'")"
 634                                 must_die_on_failure=yes
 635                                 ;;
 636                         *)
 637                                 die "$(eval_gettext "Invalid update mode '$update_module' for submodule path '$path'")"
 638                         esac
 639
 640                         if (sanitize_submodule_env; cd "$sm_path" && $command "$sha1")
 641                         then
 642                                 say "$say_msg"
 643                         elif test -n "$must_die_on_failure"
 644                         then
 645                                 die_with_status 2 "$die_msg"
 646                         else
 647                                 err="${err};$die_msg"
 648                                 continue
 649                         fi
 650                 fi
 651
 652                 if test -n "$recursive"
 653                 then
 654                         (
 655                                 prefix=$(git submodule--helper relative-path "$prefix$sm_path/" "$wt_prefix")
 656                                 wt_prefix=
 657                                 sanitize_submodule_env
 658                                 cd "$sm_path" &&
 659                                 eval cmd_update
 660                         )
 661                         res=$?
 662                         if test $res -gt 0
 663                         then
 664                                 die_msg="$(eval_gettext "Failed to recurse into submodule path '\$displaypath'")"
 665                                 if test $res -ne 2
 666                                 then
 667                                         err="${err};$die_msg"
 668                                         continue
 669                                 else
 670                                         die_with_status $res "$die_msg"
 671                                 fi
 672                         fi
 673                 fi
 674         done
 675
 676         if test -n "$err"
 677         then
 678                 OIFS=$IFS
 679                 IFS=';'
 680                 for e in $err
 681                 do
 682                         if test -n "$e"
 683                         then
 684                                 echo >&2 "$e"
 685                         fi
 686                 done
 687                 IFS=$OIFS
 688                 exit 1
 689         fi
 690         }
 691 }
 692
 693 #
 694 # Configures a submodule's default branch
 695 #
 696 # $@ = requested path
 697 #
 698 cmd_set_branch() {
 699         default=
 700         branch=
 701
 702         while test $# -ne 0
 703         do
 704                 case "$1" in
 705                 -q|--quiet)
 706                         # we don't do anything with this but we need to accept it
 707                         ;;
 708                 -d|--default)
 709                         default=1
 710                         ;;
 711                 -b|--branch)
 712                         case "$2" in '') usage ;; esac
 713                         branch=$2
 714                         shift
 715                         ;;
 716                 --)
 717                         shift
 718                         break
 719                         ;;
 720                 -*)
 721                         usage
 722                         ;;
 723                 *)
 724                         break
 725                         ;;
 726                 esac
 727                 shift
 728         done
 729
 730         git ${wt_prefix:+-C "$wt_prefix"} ${prefix:+--super-prefix "$prefix"} submodule--helper set-branch ${GIT_QUIET:+--quiet} ${branch:+--branch "$branch"} ${default:+--default} -- "$@"
 731 }
 732
 733 #
 734 # Configures a submodule's remote url
 735 #
 736 # $@ = requested path, requested url
 737 #
 738 cmd_set_url() {
 739         while test $# -ne 0
 740         do
 741                 case "$1" in
 742                 -q|--quiet)
 743                         GIT_QUIET=1
 744                         ;;
 745                 --)
 746                         shift
 747                         break
 748                         ;;
 749                 -*)
 750                         usage
 751                         ;;
 752                 *)
 753                         break
 754                         ;;
 755                 esac
 756                 shift
 757         done
 758
 759         git ${wt_prefix:+-C "$wt_prefix"} ${prefix:+--super-prefix "$prefix"} submodule--helper set-url ${GIT_QUIET:+--quiet} -- "$@"
 760 }
 761
 762 #
 763 # Show commit summary for submodules in index or working tree
 764 #
 765 # If '--cached' is given, show summary between index and given commit,
 766 # or between working tree and given commit
 767 #
 768 # $@ = [commit (default 'HEAD'),] requested paths (default all)
 769 #
 770 cmd_summary() {
 771         summary_limit=-1
 772         for_status=
 773         diff_cmd=diff-index
 774
 775         # parse $args after "submodule ... summary".
 776         while test $# -ne 0
 777         do
 778                 case "$1" in
 779                 --cached)
 780                         cached="$1"
 781                         ;;
 782                 --files)
 783                         files="$1"
 784                         ;;
 785                 --for-status)
 786                         for_status="$1"
 787                         ;;
 788                 -n|--summary-limit)
 789                         summary_limit="$2"
 790                         isnumber "$summary_limit" || usage
 791                         shift
 792                         ;;
 793                 --summary-limit=*)
 794                         summary_limit="${1#--summary-limit=}"
 795                         isnumber "$summary_limit" || usage
 796                         ;;
 797                 --)
 798                         shift
 799                         break
 800                         ;;
 801                 -*)
 802                         usage
 803                         ;;
 804                 *)
 805                         break
 806                         ;;
 807                 esac
 808                 shift
 809         done
 810
 811         git ${wt_prefix:+-C "$wt_prefix"} submodule--helper summary ${prefix:+--prefix "$prefix"} ${files:+--files} ${cached:+--cached} ${for_status:+--for-status} ${summary_limit:+-n $summary_limit} -- "$@"
 812 }
 813 #
 814 # List all submodules, prefixed with:
 815 #  - submodule not initialized
 816 #  + different revision checked out
 817 #
 818 # If --cached was specified the revision in the index will be printed
 819 # instead of the currently checked out revision.
 820 #
 821 # $@ = requested paths (default to all)
 822 #
 823 cmd_status()
 824 {
 825         # parse $args after "submodule ... status".
 826         while test $# -ne 0
 827         do
 828                 case "$1" in
 829                 -q|--quiet)
 830                         GIT_QUIET=1
 831                         ;;
 832                 --cached)
 833                         cached=1
 834                         ;;
 835                 --recursive)
 836                         recursive=1
 837                         ;;
 838                 --)
 839                         shift
 840                         break
 841                         ;;
 842                 -*)
 843                         usage
 844                         ;;
 845                 *)
 846                         break
 847                         ;;
 848                 esac
 849                 shift
 850         done
 851
 852         git ${wt_prefix:+-C "$wt_prefix"} ${prefix:+--super-prefix "$prefix"} submodule--helper status ${GIT_QUIET:+--quiet} ${cached:+--cached} ${recursive:+--recursive} -- "$@"
 853 }
 854 #
 855 # Sync remote urls for submodules
 856 # This makes the value for remote.$remote.url match the value
 857 # specified in .gitmodules.
 858 #
 859 cmd_sync()
 860 {
 861         while test $# -ne 0
 862         do
 863                 case "$1" in
 864                 -q|--quiet)
 865                         GIT_QUIET=1
 866                         shift
 867                         ;;
 868                 --recursive)
 869                         recursive=1
 870                         shift
 871                         ;;
 872                 --)
 873                         shift
 874                         break
 875                         ;;
 876                 -*)
 877                         usage
 878                         ;;
 879                 *)
 880                         break
 881                         ;;
 882                 esac
 883         done
 884
 885         git ${wt_prefix:+-C "$wt_prefix"} ${prefix:+--super-prefix "$prefix"} submodule--helper sync ${GIT_QUIET:+--quiet} ${recursive:+--recursive} -- "$@"
 886 }
 887
 888 cmd_absorbgitdirs()
 889 {
 890         git submodule--helper absorb-git-dirs --prefix "$wt_prefix" "$@"
 891 }
 892
 893 # This loop parses the command line arguments to find the
 894 # subcommand name to dispatch.  Parsing of the subcommand specific
 895 # options are primarily done by the subcommand implementations.
 896 # Subcommand specific options such as --branch and --cached are
 897 # parsed here as well, for backward compatibility.
 898
 899 while test $# != 0 && test -z "$command"
 900 do
 901         case "$1" in
 902         add | foreach | init | deinit | update | set-branch | set-url | status | summary | sync | absorbgitdirs)
 903                 command=$1
 904                 ;;
 905         -q|--quiet)
 906                 GIT_QUIET=1
 907                 ;;
 908         -b|--branch)
 909                 case "$2" in
 910                 '')
 911                         usage
 912                         ;;
 913                 esac
 914                 branch="$2"; shift
 915                 ;;
 916         --cached)
 917                 cached="$1"
 918                 ;;
 919         --)
 920                 break
 921                 ;;
 922         -*)
 923                 usage
 924                 ;;
 925         *)
 926                 break
 927                 ;;
 928         esac
 929         shift
 930 done
 931
 932 # No command word defaults to "status"
 933 if test -z "$command"
 934 then
 935     if test $# = 0
 936     then
 937         command=status
 938     else
 939         usage
 940     fi
 941 fi
 942
 943 # "-b branch" is accepted only by "add" and "set-branch"
 944 if test -n "$branch" && (test "$command" != add || test "$command" != set-branch)
 945 then
 946         usage
 947 fi
 948
 949 # "--cached" is accepted only by "status" and "summary"
 950 if test -n "$cached" && test "$command" != status && test "$command" != summary
 951 then
 952         usage
 953 fi
 954
 955 "cmd_$(echo $command | sed -e s/-/_/g)" "$@"