git-am.sh

   1 #!/bin/sh
   2 #
   3 # Copyright (c) 2005, 2006 Junio C Hamano
   4
   5 SUBDIRECTORY_OK=Yes
   6 OPTIONS_KEEPDASHDASH=
   7 OPTIONS_SPEC="\
   8 git am [options] [<mbox>|<Maildir>...]
   9 git am [options] (--resolved | --skip | --abort)
  10 --
  11 i,interactive   run interactively
  12 b,binary*       (historical option -- no-op)
  13 3,3way          allow fall back on 3way merging if needed
  14 q,quiet         be quiet
  15 s,signoff       add a Signed-off-by line to the commit message
  16 u,utf8          recode into utf8 (default)
  17 k,keep          pass -k flag to git-mailinfo
  18 whitespace=     pass it through git-apply
  19 directory=      pass it through git-apply
  20 C=              pass it through git-apply
  21 p=              pass it through git-apply
  22 patch-format=   format the patch(es) are in
  23 reject          pass it through git-apply
  24 resolvemsg=     override error message when patch failure occurs
  25 r,resolved      to be used after a patch failure
  26 skip            skip the current patch
  27 abort           restore the original branch and abort the patching operation.
  28 committer-date-is-author-date    lie about committer date
  29 ignore-date     use current timestamp for author date
  30 rebasing*       (internal use for git-rebase)"
  31
  32 . git-sh-setup
  33 prefix=$(git rev-parse --show-prefix)
  34 set_reflog_action am
  35 require_work_tree
  36 cd_to_toplevel
  37
  38 git var GIT_COMMITTER_IDENT >/dev/null ||
  39         die "You need to set your committer info first"
  40
  41 if git rev-parse --verify -q HEAD >/dev/null
  42 then
  43         HAS_HEAD=yes
  44 else
  45         HAS_HEAD=
  46 fi
  47
  48 sq () {
  49         git rev-parse --sq-quote "$@"
  50 }
  51
  52 stop_here () {
  53     echo "$1" >"$dotest/next"
  54     exit 1
  55 }
  56
  57 stop_here_user_resolve () {
  58     if [ -n "$resolvemsg" ]; then
  59             printf '%s\n' "$resolvemsg"
  60             stop_here $1
  61     fi
  62     cmdline="git am"
  63     if test '' != "$interactive"
  64     then
  65         cmdline="$cmdline -i"
  66     fi
  67     if test '' != "$threeway"
  68     then
  69         cmdline="$cmdline -3"
  70     fi
  71     echo "When you have resolved this problem run \"$cmdline --resolved\"."
  72     echo "If you would prefer to skip this patch, instead run \"$cmdline --skip\"."
  73     echo "To restore the original branch and stop patching run \"$cmdline --abort\"."
  74
  75     stop_here $1
  76 }
  77
  78 go_next () {
  79         rm -f "$dotest/$msgnum" "$dotest/msg" "$dotest/msg-clean" \
  80                 "$dotest/patch" "$dotest/info"
  81         echo "$next" >"$dotest/next"
  82         this=$next
  83 }
  84
  85 cannot_fallback () {
  86         echo "$1"
  87         echo "Cannot fall back to three-way merge."
  88         exit 1
  89 }
  90
  91 fall_back_3way () {
  92     O_OBJECT=`cd "$GIT_OBJECT_DIRECTORY" && pwd`
  93
  94     rm -fr "$dotest"/patch-merge-*
  95     mkdir "$dotest/patch-merge-tmp-dir"
  96
  97     # First see if the patch records the index info that we can use.
  98     git apply --build-fake-ancestor "$dotest/patch-merge-tmp-index" \
  99         "$dotest/patch" &&
 100     GIT_INDEX_FILE="$dotest/patch-merge-tmp-index" \
 101     git write-tree >"$dotest/patch-merge-base+" ||
 102     cannot_fallback "Repository lacks necessary blobs to fall back on 3-way merge."
 103
 104     say Using index info to reconstruct a base tree...
 105     if GIT_INDEX_FILE="$dotest/patch-merge-tmp-index" \
 106         git apply --cached <"$dotest/patch"
 107     then
 108         mv "$dotest/patch-merge-base+" "$dotest/patch-merge-base"
 109         mv "$dotest/patch-merge-tmp-index" "$dotest/patch-merge-index"
 110     else
 111         cannot_fallback "Did you hand edit your patch?
 112 It does not apply to blobs recorded in its index."
 113     fi
 114
 115     test -f "$dotest/patch-merge-index" &&
 116     his_tree=$(GIT_INDEX_FILE="$dotest/patch-merge-index" git write-tree) &&
 117     orig_tree=$(cat "$dotest/patch-merge-base") &&
 118     rm -fr "$dotest"/patch-merge-* || exit 1
 119
 120     say Falling back to patching base and 3-way merge...
 121
 122     # This is not so wrong.  Depending on which base we picked,
 123     # orig_tree may be wildly different from ours, but his_tree
 124     # has the same set of wildly different changes in parts the
 125     # patch did not touch, so recursive ends up canceling them,
 126     # saying that we reverted all those changes.
 127
 128     eval GITHEAD_$his_tree='"$FIRSTLINE"'
 129     export GITHEAD_$his_tree
 130     if test -n "$GIT_QUIET"
 131     then
 132             export GIT_MERGE_VERBOSITY=0
 133     fi
 134     git-merge-recursive $orig_tree -- HEAD $his_tree || {
 135             git rerere
 136             echo Failed to merge in the changes.
 137             exit 1
 138     }
 139     unset GITHEAD_$his_tree
 140 }
 141
 142 clean_abort () {
 143         test $# = 0 || echo >&2 "$@"
 144         rm -fr "$dotest"
 145         exit 1
 146 }
 147
 148 patch_format=
 149
 150 check_patch_format () {
 151         # early return if patch_format was set from the command line
 152         if test -n "$patch_format"
 153         then
 154                 return 0
 155         fi
 156
 157         # we default to mbox format if input is from stdin and for
 158         # directories
 159         if test $# = 0 || test "x$1" = "x-" || test -d "$1"
 160         then
 161                 patch_format=mbox
 162                 return 0
 163         fi
 164
 165         # otherwise, check the first few lines of the first patch to try
 166         # to detect its format
 167         {
 168                 read l1
 169                 read l2
 170                 read l3
 171                 case "$l1" in
 172                 "From "* | "From: "*)
 173                         patch_format=mbox
 174                         ;;
 175                 '# This series applies on GIT commit'*)
 176                         patch_format=stgit-series
 177                         ;;
 178                 "# HG changeset patch")
 179                         patch_format=hg
 180                         ;;
 181                 *)
 182                         # if the second line is empty and the third is
 183                         # a From, Author or Date entry, this is very
 184                         # likely an StGIT patch
 185                         case "$l2,$l3" in
 186                         ,"From: "* | ,"Author: "* | ,"Date: "*)
 187                                 patch_format=stgit
 188                                 ;;
 189                         *)
 190                                 ;;
 191                         esac
 192                         ;;
 193                 esac
 194                 if test -z "$patch_format" &&
 195                         test -n "$l1" &&
 196                         test -n "$l2" &&
 197                         test -n "$l3"
 198                 then
 199                         # This begins with three non-empty lines.  Is this a
 200                         # piece of e-mail a-la RFC2822?  Grab all the headers,
 201                         # discarding the indented remainder of folded lines,
 202                         # and see if it looks like that they all begin with the
 203                         # header field names...
 204                         sed -n -e '/^$/q' -e '/^[       ]/d' -e p "$1" |
 205                         egrep -v '^[A-Za-z]+(-[A-Za-z]+)*:' >/dev/null ||
 206                         patch_format=mbox
 207                 fi
 208         } < "$1" || clean_abort
 209 }
 210
 211 split_patches () {
 212         case "$patch_format" in
 213         mbox)
 214                 git mailsplit -d"$prec" -o"$dotest" -b -- "$@" > "$dotest/last" ||
 215                 clean_abort
 216                 ;;
 217         stgit-series)
 218                 if test $# -ne 1
 219                 then
 220                         clean_abort "Only one StGIT patch series can be applied at once"
 221                 fi
 222                 series_dir=`dirname "$1"`
 223                 series_file="$1"
 224                 shift
 225                 {
 226                         set x
 227                         while read filename
 228                         do
 229                                 set "$@" "$series_dir/$filename"
 230                         done
 231                         # remove the safety x
 232                         shift
 233                         # remove the arg coming from the first-line comment
 234                         shift
 235                 } < "$series_file" || clean_abort
 236                 # set the patch format appropriately
 237                 patch_format=stgit
 238                 # now handle the actual StGIT patches
 239                 split_patches "$@"
 240                 ;;
 241         stgit)
 242                 this=0
 243                 for stgit in "$@"
 244                 do
 245                         this=`expr "$this" + 1`
 246                         msgnum=`printf "%0${prec}d" $this`
 247                         # Perl version of StGIT parse_patch. The first nonemptyline
 248                         # not starting with Author, From or Date is the
 249                         # subject, and the body starts with the next nonempty
 250                         # line not starting with Author, From or Date
 251                         perl -ne 'BEGIN { $subject = 0 }
 252                                 if ($subject > 1) { print ; }
 253                                 elsif (/^\s+$/) { next ; }
 254                                 elsif (/^Author:/) { print s/Author/From/ ; }
 255                                 elsif (/^(From|Date)/) { print ; }
 256                                 elsif ($subject) {
 257                                         $subject = 2 ;
 258                                         print "\n" ;
 259                                         print ;
 260                                 } else {
 261                                         print "Subject: ", $_ ;
 262                                         $subject = 1;
 263                                 }
 264                         ' < "$stgit" > "$dotest/$msgnum" || clean_abort
 265                 done
 266                 echo "$this" > "$dotest/last"
 267                 this=
 268                 msgnum=
 269                 ;;
 270         *)
 271                 if test -n "$parse_patch" ; then
 272                         clean_abort "Patch format $patch_format is not supported."
 273                 else
 274                         clean_abort "Patch format detection failed."
 275                 fi
 276                 ;;
 277         esac
 278 }
 279
 280 prec=4
 281 dotest="$GIT_DIR/rebase-apply"
 282 sign= utf8=t keep= skip= interactive= resolved= rebasing= abort=
 283 resolvemsg= resume=
 284 git_apply_opt=
 285 committer_date_is_author_date=
 286 ignore_date=
 287
 288 while test $# != 0
 289 do
 290         case "$1" in
 291         -i|--interactive)
 292                 interactive=t ;;
 293         -b|--binary)
 294                 : ;;
 295         -3|--3way)
 296                 threeway=t ;;
 297         -s|--signoff)
 298                 sign=t ;;
 299         -u|--utf8)
 300                 utf8=t ;; # this is now default
 301         --no-utf8)
 302                 utf8= ;;
 303         -k|--keep)
 304                 keep=t ;;
 305         -r|--resolved)
 306                 resolved=t ;;
 307         --skip)
 308                 skip=t ;;
 309         --abort)
 310                 abort=t ;;
 311         --rebasing)
 312                 rebasing=t threeway=t keep=t ;;
 313         -d|--dotest)
 314                 die "-d option is no longer supported.  Do not use."
 315                 ;;
 316         --resolvemsg)
 317                 shift; resolvemsg=$1 ;;
 318         --whitespace|--directory)
 319                 git_apply_opt="$git_apply_opt $(sq "$1=$2")"; shift ;;
 320         -C|-p)
 321                 git_apply_opt="$git_apply_opt $(sq "$1$2")"; shift ;;
 322         --patch-format)
 323                 shift ; patch_format="$1" ;;
 324         --reject)
 325                 git_apply_opt="$git_apply_opt $1" ;;
 326         --committer-date-is-author-date)
 327                 committer_date_is_author_date=t ;;
 328         --ignore-date)
 329                 ignore_date=t ;;
 330         -q|--quiet)
 331                 GIT_QUIET=t ;;
 332         --)
 333                 shift; break ;;
 334         *)
 335                 usage ;;
 336         esac
 337         shift
 338 done
 339
 340 # If the dotest directory exists, but we have finished applying all the
 341 # patches in them, clear it out.
 342 if test -d "$dotest" &&
 343    last=$(cat "$dotest/last") &&
 344    next=$(cat "$dotest/next") &&
 345    test $# != 0 &&
 346    test "$next" -gt "$last"
 347 then
 348    rm -fr "$dotest"
 349 fi
 350
 351 if test -d "$dotest"
 352 then
 353         case "$#,$skip$resolved$abort" in
 354         0,*t*)
 355                 # Explicit resume command and we do not have file, so
 356                 # we are happy.
 357                 : ;;
 358         0,)
 359                 # No file input but without resume parameters; catch
 360                 # user error to feed us a patch from standard input
 361                 # when there is already $dotest.  This is somewhat
 362                 # unreliable -- stdin could be /dev/null for example
 363                 # and the caller did not intend to feed us a patch but
 364                 # wanted to continue unattended.
 365                 test -t 0
 366                 ;;
 367         *)
 368                 false
 369                 ;;
 370         esac ||
 371         die "previous rebase directory $dotest still exists but mbox given."
 372         resume=yes
 373
 374         case "$skip,$abort" in
 375         t,t)
 376                 die "Please make up your mind. --skip or --abort?"
 377                 ;;
 378         t,)
 379                 git rerere clear
 380                 git read-tree --reset -u HEAD HEAD
 381                 orig_head=$(cat "$GIT_DIR/ORIG_HEAD")
 382                 git reset HEAD
 383                 git update-ref ORIG_HEAD $orig_head
 384                 ;;
 385         ,t)
 386                 if test -f "$dotest/rebasing"
 387                 then
 388                         exec git rebase --abort
 389                 fi
 390                 git rerere clear
 391                 test -f "$dotest/dirtyindex" || {
 392                         git read-tree --reset -u HEAD ORIG_HEAD
 393                         git reset ORIG_HEAD
 394                 }
 395                 rm -fr "$dotest"
 396                 exit ;;
 397         esac
 398         rm -f "$dotest/dirtyindex"
 399 else
 400         # Make sure we are not given --skip, --resolved, nor --abort
 401         test "$skip$resolved$abort" = "" ||
 402                 die "Resolve operation not in progress, we are not resuming."
 403
 404         # Start afresh.
 405         mkdir -p "$dotest" || exit
 406
 407         if test -n "$prefix" && test $# != 0
 408         then
 409                 first=t
 410                 for arg
 411                 do
 412                         test -n "$first" && {
 413                                 set x
 414                                 first=
 415                         }
 416                         case "$arg" in
 417                         /*)
 418                                 set "$@" "$arg" ;;
 419                         *)
 420                                 set "$@" "$prefix$arg" ;;
 421                         esac
 422                 done
 423                 shift
 424         fi
 425
 426         check_patch_format "$@"
 427
 428         split_patches "$@"
 429
 430         # -s, -u, -k, --whitespace, -3, -C, -q and -p flags are kept
 431         # for the resuming session after a patch failure.
 432         # -i can and must be given when resuming.
 433         echo " $git_apply_opt" >"$dotest/apply-opt"
 434         echo "$threeway" >"$dotest/threeway"
 435         echo "$sign" >"$dotest/sign"
 436         echo "$utf8" >"$dotest/utf8"
 437         echo "$keep" >"$dotest/keep"
 438         echo "$GIT_QUIET" >"$dotest/quiet"
 439         echo 1 >"$dotest/next"
 440         if test -n "$rebasing"
 441         then
 442                 : >"$dotest/rebasing"
 443         else
 444                 : >"$dotest/applying"
 445                 if test -n "$HAS_HEAD"
 446                 then
 447                         git update-ref ORIG_HEAD HEAD
 448                 else
 449                         git update-ref -d ORIG_HEAD >/dev/null 2>&1
 450                 fi
 451         fi
 452 fi
 453
 454 case "$resolved" in
 455 '')
 456         case "$HAS_HEAD" in
 457         '')
 458                 files=$(git ls-files) ;;
 459         ?*)
 460                 files=$(git diff-index --cached --name-only HEAD --) ;;
 461         esac || exit
 462         if test "$files"
 463         then
 464                 test -n "$HAS_HEAD" && : >"$dotest/dirtyindex"
 465                 die "Dirty index: cannot apply patches (dirty: $files)"
 466         fi
 467 esac
 468
 469 if test "$(cat "$dotest/utf8")" = t
 470 then
 471         utf8=-u
 472 else
 473         utf8=-n
 474 fi
 475 if test "$(cat "$dotest/keep")" = t
 476 then
 477         keep=-k
 478 fi
 479 if test "$(cat "$dotest/quiet")" = t
 480 then
 481         GIT_QUIET=t
 482 fi
 483 if test "$(cat "$dotest/threeway")" = t
 484 then
 485         threeway=t
 486 fi
 487 git_apply_opt=$(cat "$dotest/apply-opt")
 488 if test "$(cat "$dotest/sign")" = t
 489 then
 490         SIGNOFF=`git var GIT_COMMITTER_IDENT | sed -e '
 491                         s/>.*/>/
 492                         s/^/Signed-off-by: /'
 493                 `
 494 else
 495         SIGNOFF=
 496 fi
 497
 498 last=`cat "$dotest/last"`
 499 this=`cat "$dotest/next"`
 500 if test "$skip" = t
 501 then
 502         this=`expr "$this" + 1`
 503         resume=
 504 fi
 505
 506 if test "$this" -gt "$last"
 507 then
 508         say Nothing to do.
 509         rm -fr "$dotest"
 510         exit
 511 fi
 512
 513 while test "$this" -le "$last"
 514 do
 515         msgnum=`printf "%0${prec}d" $this`
 516         next=`expr "$this" + 1`
 517         test -f "$dotest/$msgnum" || {
 518                 resume=
 519                 go_next
 520                 continue
 521         }
 522
 523         # If we are not resuming, parse and extract the patch information
 524         # into separate files:
 525         #  - info records the authorship and title
 526         #  - msg is the rest of commit log message
 527         #  - patch is the patch body.
 528         #
 529         # When we are resuming, these files are either already prepared
 530         # by the user, or the user can tell us to do so by --resolved flag.
 531         case "$resume" in
 532         '')
 533                 git mailinfo $keep $utf8 "$dotest/msg" "$dotest/patch" \
 534                         <"$dotest/$msgnum" >"$dotest/info" ||
 535                         stop_here $this
 536
 537                 # skip pine's internal folder data
 538                 grep '^Author: Mail System Internal Data$' \
 539                         <"$dotest"/info >/dev/null &&
 540                         go_next && continue
 541
 542                 test -s "$dotest/patch" || {
 543                         echo "Patch is empty.  Was it split wrong?"
 544                         stop_here $this
 545                 }
 546                 if test -f "$dotest/rebasing" &&
 547                         commit=$(sed -e 's/^From \([0-9a-f]*\) .*/\1/' \
 548                                 -e q "$dotest/$msgnum") &&
 549                         test "$(git cat-file -t "$commit")" = commit
 550                 then
 551                         git cat-file commit "$commit" |
 552                         sed -e '1,/^$/d' >"$dotest/msg-clean"
 553                 else
 554                         SUBJECT="$(sed -n '/^Subject/ s/Subject: //p' "$dotest/info")"
 555                         case "$keep_subject" in -k)  SUBJECT="[PATCH] $SUBJECT" ;; esac
 556
 557                         (printf '%s\n\n' "$SUBJECT"; cat "$dotest/msg") |
 558                                 git stripspace > "$dotest/msg-clean"
 559                 fi
 560                 ;;
 561         esac
 562
 563         GIT_AUTHOR_NAME="$(sed -n '/^Author/ s/Author: //p' "$dotest/info")"
 564         GIT_AUTHOR_EMAIL="$(sed -n '/^Email/ s/Email: //p' "$dotest/info")"
 565         GIT_AUTHOR_DATE="$(sed -n '/^Date/ s/Date: //p' "$dotest/info")"
 566
 567         if test -z "$GIT_AUTHOR_EMAIL"
 568         then
 569                 echo "Patch does not have a valid e-mail address."
 570                 stop_here $this
 571         fi
 572
 573         export GIT_AUTHOR_NAME GIT_AUTHOR_EMAIL GIT_AUTHOR_DATE
 574
 575         case "$resume" in
 576         '')
 577             if test '' != "$SIGNOFF"
 578             then
 579                 LAST_SIGNED_OFF_BY=`
 580                     sed -ne '/^Signed-off-by: /p' \
 581                     "$dotest/msg-clean" |
 582                     sed -ne '$p'
 583                 `
 584                 ADD_SIGNOFF=`
 585                     test "$LAST_SIGNED_OFF_BY" = "$SIGNOFF" || {
 586                     test '' = "$LAST_SIGNED_OFF_BY" && echo
 587                     echo "$SIGNOFF"
 588                 }`
 589             else
 590                 ADD_SIGNOFF=
 591             fi
 592             {
 593                 if test -s "$dotest/msg-clean"
 594                 then
 595                         cat "$dotest/msg-clean"
 596                 fi
 597                 if test '' != "$ADD_SIGNOFF"
 598                 then
 599                         echo "$ADD_SIGNOFF"
 600                 fi
 601             } >"$dotest/final-commit"
 602             ;;
 603         *)
 604                 case "$resolved$interactive" in
 605                 tt)
 606                         # This is used only for interactive view option.
 607                         git diff-index -p --cached HEAD -- >"$dotest/patch"
 608                         ;;
 609                 esac
 610         esac
 611
 612         resume=
 613         if test "$interactive" = t
 614         then
 615             test -t 0 ||
 616             die "cannot be interactive without stdin connected to a terminal."
 617             action=again
 618             while test "$action" = again
 619             do
 620                 echo "Commit Body is:"
 621                 echo "--------------------------"
 622                 cat "$dotest/final-commit"
 623                 echo "--------------------------"
 624                 printf "Apply? [y]es/[n]o/[e]dit/[v]iew patch/[a]ccept all "
 625                 read reply
 626                 case "$reply" in
 627                 [yY]*) action=yes ;;
 628                 [aA]*) action=yes interactive= ;;
 629                 [nN]*) action=skip ;;
 630                 [eE]*) git_editor "$dotest/final-commit"
 631                        action=again ;;
 632                 [vV]*) action=again
 633                        LESS=-S ${PAGER:-less} "$dotest/patch" ;;
 634                 *)     action=again ;;
 635                 esac
 636             done
 637         else
 638             action=yes
 639         fi
 640         FIRSTLINE=$(sed 1q "$dotest/final-commit")
 641
 642         if test $action = skip
 643         then
 644                 go_next
 645                 continue
 646         fi
 647
 648         if test -x "$GIT_DIR"/hooks/applypatch-msg
 649         then
 650                 "$GIT_DIR"/hooks/applypatch-msg "$dotest/final-commit" ||
 651                 stop_here $this
 652         fi
 653
 654         say "Applying: $FIRSTLINE"
 655
 656         case "$resolved" in
 657         '')
 658                 # When we are allowed to fall back to 3-way later, don't give
 659                 # false errors during the initial attempt.
 660                 squelch=
 661                 if test "$threeway" = t
 662                 then
 663                         squelch='>/dev/null 2>&1 '
 664                 fi
 665                 eval "git apply $squelch$git_apply_opt"' --index "$dotest/patch"'
 666                 apply_status=$?
 667                 ;;
 668         t)
 669                 # Resolved means the user did all the hard work, and
 670                 # we do not have to do any patch application.  Just
 671                 # trust what the user has in the index file and the
 672                 # working tree.
 673                 resolved=
 674                 git diff-index --quiet --cached HEAD -- && {
 675                         echo "No changes - did you forget to use 'git add'?"
 676                         stop_here_user_resolve $this
 677                 }
 678                 unmerged=$(git ls-files -u)
 679                 if test -n "$unmerged"
 680                 then
 681                         echo "You still have unmerged paths in your index"
 682                         echo "did you forget to use 'git add'?"
 683                         stop_here_user_resolve $this
 684                 fi
 685                 apply_status=0
 686                 git rerere
 687                 ;;
 688         esac
 689
 690         if test $apply_status = 1 && test "$threeway" = t
 691         then
 692                 if (fall_back_3way)
 693                 then
 694                     # Applying the patch to an earlier tree and merging the
 695                     # result may have produced the same tree as ours.
 696                     git diff-index --quiet --cached HEAD -- && {
 697                         say No changes -- Patch already applied.
 698                         go_next
 699                         continue
 700                     }
 701                     # clear apply_status -- we have successfully merged.
 702                     apply_status=0
 703                 fi
 704         fi
 705         if test $apply_status != 0
 706         then
 707                 printf 'Patch failed at %s %s\n' "$msgnum" "$FIRSTLINE"
 708                 stop_here_user_resolve $this
 709         fi
 710
 711         if test -x "$GIT_DIR"/hooks/pre-applypatch
 712         then
 713                 "$GIT_DIR"/hooks/pre-applypatch || stop_here $this
 714         fi
 715
 716         tree=$(git write-tree) &&
 717         commit=$(
 718                 if test -n "$ignore_date"
 719                 then
 720                         GIT_AUTHOR_DATE=
 721                 fi
 722                 parent=$(git rev-parse --verify -q HEAD) ||
 723                 say >&2 "applying to an empty history"
 724
 725                 if test -n "$committer_date_is_author_date"
 726                 then
 727                         GIT_COMMITTER_DATE="$GIT_AUTHOR_DATE"
 728                         export GIT_COMMITTER_DATE
 729                 fi &&
 730                 git commit-tree $tree ${parent:+-p} $parent <"$dotest/final-commit"
 731         ) &&
 732         git update-ref -m "$GIT_REFLOG_ACTION: $FIRSTLINE" HEAD $commit $parent ||
 733         stop_here $this
 734
 735         if test -x "$GIT_DIR"/hooks/post-applypatch
 736         then
 737                 "$GIT_DIR"/hooks/post-applypatch
 738         fi
 739
 740         go_next
 741 done
 742
 743 git gc --auto
 744
 745 rm -fr "$dotest"