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 keep-cr         pass --keep-cr flag to git-mailsplit for mbox format
  19 no-keep-cr      do not pass --keep-cr flag to git-mailsplit independent of am.keepcr
  20 c,scissors      strip everything before a scissors line
  21 whitespace=     pass it through git-apply
  22 ignore-space-change pass it through git-apply
  23 ignore-whitespace pass it through git-apply
  24 directory=      pass it through git-apply
  25 C=              pass it through git-apply
  26 p=              pass it through git-apply
  27 patch-format=   format the patch(es) are in
  28 reject          pass it through git-apply
  29 resolvemsg=     override error message when patch failure occurs
  30 continue        continue applying patches after resolving a conflict
  31 r,resolved      synonyms for --continue
  32 skip            skip the current patch
  33 abort           restore the original branch and abort the patching operation.
  34 committer-date-is-author-date    lie about committer date
  35 ignore-date     use current timestamp for author date
  36 rerere-autoupdate update the index with reused conflict resolution if possible
  37 rebasing*       (internal use for git-rebase)"
  38
  39 . git-sh-setup
  40 . git-sh-i18n
  41 prefix=$(git rev-parse --show-prefix)
  42 set_reflog_action am
  43 require_work_tree
  44 cd_to_toplevel
  45
  46 git var GIT_COMMITTER_IDENT >/dev/null ||
  47         die "You need to set your committer info first"
  48
  49 if git rev-parse --verify -q HEAD >/dev/null
  50 then
  51         HAS_HEAD=yes
  52 else
  53         HAS_HEAD=
  54 fi
  55
  56 cmdline="git am"
  57 if test '' != "$interactive"
  58 then
  59         cmdline="$cmdline -i"
  60 fi
  61 if test '' != "$threeway"
  62 then
  63         cmdline="$cmdline -3"
  64 fi
  65
  66 sq () {
  67         git rev-parse --sq-quote "$@"
  68 }
  69
  70 stop_here () {
  71     echo "$1" >"$dotest/next"
  72     git rev-parse --verify -q HEAD >"$dotest/abort-safety"
  73     exit 1
  74 }
  75
  76 safe_to_abort () {
  77         if test -f "$dotest/dirtyindex"
  78         then
  79                 return 1
  80         fi
  81
  82         if ! test -s "$dotest/abort-safety"
  83         then
  84                 return 0
  85         fi
  86
  87         abort_safety=$(cat "$dotest/abort-safety")
  88         if test "z$(git rev-parse --verify -q HEAD)" = "z$abort_safety"
  89         then
  90                 return 0
  91         fi
  92         echo >&2 "You seem to have moved HEAD since the last 'am' failure."
  93         echo >&2 "Not rewinding to ORIG_HEAD"
  94         return 1
  95 }
  96
  97 stop_here_user_resolve () {
  98     if [ -n "$resolvemsg" ]; then
  99             printf '%s\n' "$resolvemsg"
 100             stop_here $1
 101     fi
 102     echo "When you have resolved this problem run \"$cmdline --resolved\"."
 103     echo "If you would prefer to skip this patch, instead run \"$cmdline --skip\"."
 104     echo "To restore the original branch and stop patching run \"$cmdline --abort\"."
 105
 106     stop_here $1
 107 }
 108
 109 go_next () {
 110         rm -f "$dotest/$msgnum" "$dotest/msg" "$dotest/msg-clean" \
 111                 "$dotest/patch" "$dotest/info"
 112         echo "$next" >"$dotest/next"
 113         this=$next
 114 }
 115
 116 cannot_fallback () {
 117         echo "$1"
 118         gettext "Cannot fall back to three-way merge."; echo
 119         exit 1
 120 }
 121
 122 fall_back_3way () {
 123     O_OBJECT=`cd "$GIT_OBJECT_DIRECTORY" && pwd`
 124
 125     rm -fr "$dotest"/patch-merge-*
 126     mkdir "$dotest/patch-merge-tmp-dir"
 127
 128     # First see if the patch records the index info that we can use.
 129     git apply --build-fake-ancestor "$dotest/patch-merge-tmp-index" \
 130         "$dotest/patch" &&
 131     GIT_INDEX_FILE="$dotest/patch-merge-tmp-index" \
 132     git write-tree >"$dotest/patch-merge-base+" ||
 133     cannot_fallback "Repository lacks necessary blobs to fall back on 3-way merge."
 134
 135     say Using index info to reconstruct a base tree...
 136     if GIT_INDEX_FILE="$dotest/patch-merge-tmp-index" \
 137         git apply --cached <"$dotest/patch"
 138     then
 139         mv "$dotest/patch-merge-base+" "$dotest/patch-merge-base"
 140         mv "$dotest/patch-merge-tmp-index" "$dotest/patch-merge-index"
 141     else
 142         cannot_fallback "Did you hand edit your patch?
 143 It does not apply to blobs recorded in its index."
 144     fi
 145
 146     test -f "$dotest/patch-merge-index" &&
 147     his_tree=$(GIT_INDEX_FILE="$dotest/patch-merge-index" git write-tree) &&
 148     orig_tree=$(cat "$dotest/patch-merge-base") &&
 149     rm -fr "$dotest"/patch-merge-* || exit 1
 150
 151     say Falling back to patching base and 3-way merge...
 152
 153     # This is not so wrong.  Depending on which base we picked,
 154     # orig_tree may be wildly different from ours, but his_tree
 155     # has the same set of wildly different changes in parts the
 156     # patch did not touch, so recursive ends up canceling them,
 157     # saying that we reverted all those changes.
 158
 159     eval GITHEAD_$his_tree='"$FIRSTLINE"'
 160     export GITHEAD_$his_tree
 161     if test -n "$GIT_QUIET"
 162     then
 163             GIT_MERGE_VERBOSITY=0 && export GIT_MERGE_VERBOSITY
 164     fi
 165     git-merge-recursive $orig_tree -- HEAD $his_tree || {
 166             git rerere $allow_rerere_autoupdate
 167             echo Failed to merge in the changes.
 168             exit 1
 169     }
 170     unset GITHEAD_$his_tree
 171 }
 172
 173 clean_abort () {
 174         test $# = 0 || echo >&2 "$@"
 175         rm -fr "$dotest"
 176         exit 1
 177 }
 178
 179 patch_format=
 180
 181 check_patch_format () {
 182         # early return if patch_format was set from the command line
 183         if test -n "$patch_format"
 184         then
 185                 return 0
 186         fi
 187
 188         # we default to mbox format if input is from stdin and for
 189         # directories
 190         if test $# = 0 || test "x$1" = "x-" || test -d "$1"
 191         then
 192                 patch_format=mbox
 193                 return 0
 194         fi
 195
 196         # otherwise, check the first few lines of the first patch to try
 197         # to detect its format
 198         {
 199                 read l1
 200                 read l2
 201                 read l3
 202                 case "$l1" in
 203                 "From "* | "From: "*)
 204                         patch_format=mbox
 205                         ;;
 206                 '# This series applies on GIT commit'*)
 207                         patch_format=stgit-series
 208                         ;;
 209                 "# HG changeset patch")
 210                         patch_format=hg
 211                         ;;
 212                 *)
 213                         # if the second line is empty and the third is
 214                         # a From, Author or Date entry, this is very
 215                         # likely an StGIT patch
 216                         case "$l2,$l3" in
 217                         ,"From: "* | ,"Author: "* | ,"Date: "*)
 218                                 patch_format=stgit
 219                                 ;;
 220                         *)
 221                                 ;;
 222                         esac
 223                         ;;
 224                 esac
 225                 if test -z "$patch_format" &&
 226                         test -n "$l1" &&
 227                         test -n "$l2" &&
 228                         test -n "$l3"
 229                 then
 230                         # This begins with three non-empty lines.  Is this a
 231                         # piece of e-mail a-la RFC2822?  Grab all the headers,
 232                         # discarding the indented remainder of folded lines,
 233                         # and see if it looks like that they all begin with the
 234                         # header field names...
 235                         tr -d '\015' <"$1" |
 236                         sed -n -e '/^$/q' -e '/^[       ]/d' -e p |
 237                         sane_egrep -v '^[!-9;-~]+:' >/dev/null ||
 238                         patch_format=mbox
 239                 fi
 240         } < "$1" || clean_abort
 241 }
 242
 243 split_patches () {
 244         case "$patch_format" in
 245         mbox)
 246                 if test -n "$rebasing" || test t = "$keepcr"
 247                 then
 248                     keep_cr=--keep-cr
 249                 else
 250                     keep_cr=
 251                 fi
 252                 git mailsplit -d"$prec" -o"$dotest" -b $keep_cr -- "$@" > "$dotest/last" ||
 253                 clean_abort
 254                 ;;
 255         stgit-series)
 256                 if test $# -ne 1
 257                 then
 258                         clean_abort "Only one StGIT patch series can be applied at once"
 259                 fi
 260                 series_dir=`dirname "$1"`
 261                 series_file="$1"
 262                 shift
 263                 {
 264                         set x
 265                         while read filename
 266                         do
 267                                 set "$@" "$series_dir/$filename"
 268                         done
 269                         # remove the safety x
 270                         shift
 271                         # remove the arg coming from the first-line comment
 272                         shift
 273                 } < "$series_file" || clean_abort
 274                 # set the patch format appropriately
 275                 patch_format=stgit
 276                 # now handle the actual StGIT patches
 277                 split_patches "$@"
 278                 ;;
 279         stgit)
 280                 this=0
 281                 for stgit in "$@"
 282                 do
 283                         this=`expr "$this" + 1`
 284                         msgnum=`printf "%0${prec}d" $this`
 285                         # Perl version of StGIT parse_patch. The first nonemptyline
 286                         # not starting with Author, From or Date is the
 287                         # subject, and the body starts with the next nonempty
 288                         # line not starting with Author, From or Date
 289                         perl -ne 'BEGIN { $subject = 0 }
 290                                 if ($subject > 1) { print ; }
 291                                 elsif (/^\s+$/) { next ; }
 292                                 elsif (/^Author:/) { print s/Author/From/ ; }
 293                                 elsif (/^(From|Date)/) { print ; }
 294                                 elsif ($subject) {
 295                                         $subject = 2 ;
 296                                         print "\n" ;
 297                                         print ;
 298                                 } else {
 299                                         print "Subject: ", $_ ;
 300                                         $subject = 1;
 301                                 }
 302                         ' < "$stgit" > "$dotest/$msgnum" || clean_abort
 303                 done
 304                 echo "$this" > "$dotest/last"
 305                 this=
 306                 msgnum=
 307                 ;;
 308         *)
 309                 if test -n "$parse_patch" ; then
 310                         clean_abort "Patch format $patch_format is not supported."
 311                 else
 312                         clean_abort "Patch format detection failed."
 313                 fi
 314                 ;;
 315         esac
 316 }
 317
 318 prec=4
 319 dotest="$GIT_DIR/rebase-apply"
 320 sign= utf8=t keep= keepcr= skip= interactive= resolved= rebasing= abort=
 321 resolvemsg= resume= scissors= no_inbody_headers=
 322 git_apply_opt=
 323 committer_date_is_author_date=
 324 ignore_date=
 325 allow_rerere_autoupdate=
 326
 327 if test "$(git config --bool --get am.keepcr)" = true
 328 then
 329     keepcr=t
 330 fi
 331
 332 while test $# != 0
 333 do
 334         case "$1" in
 335         -i|--interactive)
 336                 interactive=t ;;
 337         -b|--binary)
 338                 : ;;
 339         -3|--3way)
 340                 threeway=t ;;
 341         -s|--signoff)
 342                 sign=t ;;
 343         -u|--utf8)
 344                 utf8=t ;; # this is now default
 345         --no-utf8)
 346                 utf8= ;;
 347         -k|--keep)
 348                 keep=t ;;
 349         -c|--scissors)
 350                 scissors=t ;;
 351         --no-scissors)
 352                 scissors=f ;;
 353         -r|--resolved|--continue)
 354                 resolved=t ;;
 355         --skip)
 356                 skip=t ;;
 357         --abort)
 358                 abort=t ;;
 359         --rebasing)
 360                 rebasing=t threeway=t keep=t scissors=f no_inbody_headers=t ;;
 361         -d|--dotest)
 362                 die "-d option is no longer supported.  Do not use."
 363                 ;;
 364         --resolvemsg)
 365                 shift; resolvemsg=$1 ;;
 366         --whitespace|--directory)
 367                 git_apply_opt="$git_apply_opt $(sq "$1=$2")"; shift ;;
 368         -C|-p)
 369                 git_apply_opt="$git_apply_opt $(sq "$1$2")"; shift ;;
 370         --patch-format)
 371                 shift ; patch_format="$1" ;;
 372         --reject|--ignore-whitespace|--ignore-space-change)
 373                 git_apply_opt="$git_apply_opt $1" ;;
 374         --committer-date-is-author-date)
 375                 committer_date_is_author_date=t ;;
 376         --ignore-date)
 377                 ignore_date=t ;;
 378         --rerere-autoupdate|--no-rerere-autoupdate)
 379                 allow_rerere_autoupdate="$1" ;;
 380         -q|--quiet)
 381                 GIT_QUIET=t ;;
 382         --keep-cr)
 383                 keepcr=t ;;
 384         --no-keep-cr)
 385                 keepcr=f ;;
 386         --)
 387                 shift; break ;;
 388         *)
 389                 usage ;;
 390         esac
 391         shift
 392 done
 393
 394 # If the dotest directory exists, but we have finished applying all the
 395 # patches in them, clear it out.
 396 if test -d "$dotest" &&
 397    last=$(cat "$dotest/last") &&
 398    next=$(cat "$dotest/next") &&
 399    test $# != 0 &&
 400    test "$next" -gt "$last"
 401 then
 402    rm -fr "$dotest"
 403 fi
 404
 405 if test -d "$dotest"
 406 then
 407         case "$#,$skip$resolved$abort" in
 408         0,*t*)
 409                 # Explicit resume command and we do not have file, so
 410                 # we are happy.
 411                 : ;;
 412         0,)
 413                 # No file input but without resume parameters; catch
 414                 # user error to feed us a patch from standard input
 415                 # when there is already $dotest.  This is somewhat
 416                 # unreliable -- stdin could be /dev/null for example
 417                 # and the caller did not intend to feed us a patch but
 418                 # wanted to continue unattended.
 419                 test -t 0
 420                 ;;
 421         *)
 422                 false
 423                 ;;
 424         esac ||
 425         die "previous rebase directory $dotest still exists but mbox given."
 426         resume=yes
 427
 428         case "$skip,$abort" in
 429         t,t)
 430                 die "Please make up your mind. --skip or --abort?"
 431                 ;;
 432         t,)
 433                 git rerere clear
 434                 git read-tree --reset -u HEAD HEAD
 435                 orig_head=$(cat "$GIT_DIR/ORIG_HEAD")
 436                 git reset HEAD
 437                 git update-ref ORIG_HEAD $orig_head
 438                 ;;
 439         ,t)
 440                 if test -f "$dotest/rebasing"
 441                 then
 442                         exec git rebase --abort
 443                 fi
 444                 git rerere clear
 445                 if safe_to_abort
 446                 then
 447                         git read-tree --reset -u HEAD ORIG_HEAD
 448                         git reset ORIG_HEAD
 449                 fi
 450                 rm -fr "$dotest"
 451                 exit ;;
 452         esac
 453         rm -f "$dotest/dirtyindex"
 454 else
 455         # Make sure we are not given --skip, --resolved, nor --abort
 456         test "$skip$resolved$abort" = "" ||
 457                 die "Resolve operation not in progress, we are not resuming."
 458
 459         # Start afresh.
 460         mkdir -p "$dotest" || exit
 461
 462         if test -n "$prefix" && test $# != 0
 463         then
 464                 first=t
 465                 for arg
 466                 do
 467                         test -n "$first" && {
 468                                 set x
 469                                 first=
 470                         }
 471                         if is_absolute_path "$arg"
 472                         then
 473                                 set "$@" "$arg"
 474                         else
 475                                 set "$@" "$prefix$arg"
 476                         fi
 477                 done
 478                 shift
 479         fi
 480
 481         check_patch_format "$@"
 482
 483         split_patches "$@"
 484
 485         # -i can and must be given when resuming; everything
 486         # else is kept
 487         echo " $git_apply_opt" >"$dotest/apply-opt"
 488         echo "$threeway" >"$dotest/threeway"
 489         echo "$sign" >"$dotest/sign"
 490         echo "$utf8" >"$dotest/utf8"
 491         echo "$keep" >"$dotest/keep"
 492         echo "$keepcr" >"$dotest/keepcr"
 493         echo "$scissors" >"$dotest/scissors"
 494         echo "$no_inbody_headers" >"$dotest/no_inbody_headers"
 495         echo "$GIT_QUIET" >"$dotest/quiet"
 496         echo 1 >"$dotest/next"
 497         if test -n "$rebasing"
 498         then
 499                 : >"$dotest/rebasing"
 500         else
 501                 : >"$dotest/applying"
 502                 if test -n "$HAS_HEAD"
 503                 then
 504                         git update-ref ORIG_HEAD HEAD
 505                 else
 506                         git update-ref -d ORIG_HEAD >/dev/null 2>&1
 507                 fi
 508         fi
 509 fi
 510
 511 case "$resolved" in
 512 '')
 513         case "$HAS_HEAD" in
 514         '')
 515                 files=$(git ls-files) ;;
 516         ?*)
 517                 files=$(git diff-index --cached --name-only HEAD --) ;;
 518         esac || exit
 519         if test "$files"
 520         then
 521                 test -n "$HAS_HEAD" && : >"$dotest/dirtyindex"
 522                 die "Dirty index: cannot apply patches (dirty: $files)"
 523         fi
 524 esac
 525
 526 if test "$(cat "$dotest/utf8")" = t
 527 then
 528         utf8=-u
 529 else
 530         utf8=-n
 531 fi
 532 if test "$(cat "$dotest/keep")" = t
 533 then
 534         keep=-k
 535 fi
 536 case "$(cat "$dotest/keepcr")" in
 537 t)
 538         keepcr=--keep-cr ;;
 539 f)
 540         keepcr=--no-keep-cr ;;
 541 esac
 542 case "$(cat "$dotest/scissors")" in
 543 t)
 544         scissors=--scissors ;;
 545 f)
 546         scissors=--no-scissors ;;
 547 esac
 548 if test "$(cat "$dotest/no_inbody_headers")" = t
 549 then
 550         no_inbody_headers=--no-inbody-headers
 551 else
 552         no_inbody_headers=
 553 fi
 554 if test "$(cat "$dotest/quiet")" = t
 555 then
 556         GIT_QUIET=t
 557 fi
 558 if test "$(cat "$dotest/threeway")" = t
 559 then
 560         threeway=t
 561 fi
 562 git_apply_opt=$(cat "$dotest/apply-opt")
 563 if test "$(cat "$dotest/sign")" = t
 564 then
 565         SIGNOFF=`git var GIT_COMMITTER_IDENT | sed -e '
 566                         s/>.*/>/
 567                         s/^/Signed-off-by: /'
 568                 `
 569 else
 570         SIGNOFF=
 571 fi
 572
 573 last=`cat "$dotest/last"`
 574 this=`cat "$dotest/next"`
 575 if test "$skip" = t
 576 then
 577         this=`expr "$this" + 1`
 578         resume=
 579 fi
 580
 581 while test "$this" -le "$last"
 582 do
 583         msgnum=`printf "%0${prec}d" $this`
 584         next=`expr "$this" + 1`
 585         test -f "$dotest/$msgnum" || {
 586                 resume=
 587                 go_next
 588                 continue
 589         }
 590
 591         # If we are not resuming, parse and extract the patch information
 592         # into separate files:
 593         #  - info records the authorship and title
 594         #  - msg is the rest of commit log message
 595         #  - patch is the patch body.
 596         #
 597         # When we are resuming, these files are either already prepared
 598         # by the user, or the user can tell us to do so by --resolved flag.
 599         case "$resume" in
 600         '')
 601                 git mailinfo $keep $no_inbody_headers $scissors $utf8 "$dotest/msg" "$dotest/patch" \
 602                         <"$dotest/$msgnum" >"$dotest/info" ||
 603                         stop_here $this
 604
 605                 # skip pine's internal folder data
 606                 sane_grep '^Author: Mail System Internal Data$' \
 607                         <"$dotest"/info >/dev/null &&
 608                         go_next && continue
 609
 610                 test -s "$dotest/patch" || {
 611                         echo "Patch is empty.  Was it split wrong?"
 612                         echo "If you would prefer to skip this patch, instead run \"$cmdline --skip\"."
 613                         echo "To restore the original branch and stop patching run \"$cmdline --abort\"."
 614                         stop_here $this
 615                 }
 616                 rm -f "$dotest/original-commit" "$dotest/author-script"
 617                 if test -f "$dotest/rebasing" &&
 618                         commit=$(sed -e 's/^From \([0-9a-f]*\) .*/\1/' \
 619                                 -e q "$dotest/$msgnum") &&
 620                         test "$(git cat-file -t "$commit")" = commit
 621                 then
 622                         git cat-file commit "$commit" |
 623                         sed -e '1,/^$/d' >"$dotest/msg-clean"
 624                         echo "$commit" > "$dotest/original-commit"
 625                         get_author_ident_from_commit "$commit" > "$dotest/author-script"
 626                 else
 627                         {
 628                                 sed -n '/^Subject/ s/Subject: //p' "$dotest/info"
 629                                 echo
 630                                 cat "$dotest/msg"
 631                         } |
 632                         git stripspace > "$dotest/msg-clean"
 633                 fi
 634                 ;;
 635         esac
 636
 637         if test -f "$dotest/author-script"
 638         then
 639                 eval $(cat "$dotest/author-script")
 640         else
 641                 GIT_AUTHOR_NAME="$(sed -n '/^Author/ s/Author: //p' "$dotest/info")"
 642                 GIT_AUTHOR_EMAIL="$(sed -n '/^Email/ s/Email: //p' "$dotest/info")"
 643                 GIT_AUTHOR_DATE="$(sed -n '/^Date/ s/Date: //p' "$dotest/info")"
 644         fi
 645
 646         if test -z "$GIT_AUTHOR_EMAIL"
 647         then
 648                 gettext "Patch does not have a valid e-mail address."; echo
 649                 stop_here $this
 650         fi
 651
 652         export GIT_AUTHOR_NAME GIT_AUTHOR_EMAIL GIT_AUTHOR_DATE
 653
 654         case "$resume" in
 655         '')
 656             if test '' != "$SIGNOFF"
 657             then
 658                 LAST_SIGNED_OFF_BY=`
 659                     sed -ne '/^Signed-off-by: /p' \
 660                     "$dotest/msg-clean" |
 661                     sed -ne '$p'
 662                 `
 663                 ADD_SIGNOFF=`
 664                     test "$LAST_SIGNED_OFF_BY" = "$SIGNOFF" || {
 665                     test '' = "$LAST_SIGNED_OFF_BY" && echo
 666                     echo "$SIGNOFF"
 667                 }`
 668             else
 669                 ADD_SIGNOFF=
 670             fi
 671             {
 672                 if test -s "$dotest/msg-clean"
 673                 then
 674                         cat "$dotest/msg-clean"
 675                 fi
 676                 if test '' != "$ADD_SIGNOFF"
 677                 then
 678                         echo "$ADD_SIGNOFF"
 679                 fi
 680             } >"$dotest/final-commit"
 681             ;;
 682         *)
 683                 case "$resolved$interactive" in
 684                 tt)
 685                         # This is used only for interactive view option.
 686                         git diff-index -p --cached HEAD -- >"$dotest/patch"
 687                         ;;
 688                 esac
 689         esac
 690
 691         resume=
 692         if test "$interactive" = t
 693         then
 694             test -t 0 ||
 695             die "cannot be interactive without stdin connected to a terminal."
 696             action=again
 697             while test "$action" = again
 698             do
 699                 gettext "Commit Body is:"; echo
 700                 echo "--------------------------"
 701                 cat "$dotest/final-commit"
 702                 echo "--------------------------"
 703                 printf "Apply? [y]es/[n]o/[e]dit/[v]iew patch/[a]ccept all "
 704                 read reply
 705                 case "$reply" in
 706                 [yY]*) action=yes ;;
 707                 [aA]*) action=yes interactive= ;;
 708                 [nN]*) action=skip ;;
 709                 [eE]*) git_editor "$dotest/final-commit"
 710                        action=again ;;
 711                 [vV]*) action=again
 712                        git_pager "$dotest/patch" ;;
 713                 *)     action=again ;;
 714                 esac
 715             done
 716         else
 717             action=yes
 718         fi
 719
 720         if test -f "$dotest/final-commit"
 721         then
 722                 FIRSTLINE=$(sed 1q "$dotest/final-commit")
 723         else
 724                 FIRSTLINE=""
 725         fi
 726
 727         if test $action = skip
 728         then
 729                 go_next
 730                 continue
 731         fi
 732
 733         if test -x "$GIT_DIR"/hooks/applypatch-msg
 734         then
 735                 "$GIT_DIR"/hooks/applypatch-msg "$dotest/final-commit" ||
 736                 stop_here $this
 737         fi
 738
 739         say "Applying: $FIRSTLINE"
 740
 741         case "$resolved" in
 742         '')
 743                 # When we are allowed to fall back to 3-way later, don't give
 744                 # false errors during the initial attempt.
 745                 squelch=
 746                 if test "$threeway" = t
 747                 then
 748                         squelch='>/dev/null 2>&1 '
 749                 fi
 750                 eval "git apply $squelch$git_apply_opt"' --index "$dotest/patch"'
 751                 apply_status=$?
 752                 ;;
 753         t)
 754                 # Resolved means the user did all the hard work, and
 755                 # we do not have to do any patch application.  Just
 756                 # trust what the user has in the index file and the
 757                 # working tree.
 758                 resolved=
 759                 git diff-index --quiet --cached HEAD -- && {
 760                         echo "No changes - did you forget to use 'git add'?"
 761                         echo "If there is nothing left to stage, chances are that something else"
 762                         echo "already introduced the same changes; you might want to skip this patch."
 763                         stop_here_user_resolve $this
 764                 }
 765                 unmerged=$(git ls-files -u)
 766                 if test -n "$unmerged"
 767                 then
 768                         echo "You still have unmerged paths in your index"
 769                         echo "did you forget to use 'git add'?"
 770                         stop_here_user_resolve $this
 771                 fi
 772                 apply_status=0
 773                 git rerere
 774                 ;;
 775         esac
 776
 777         if test $apply_status != 0 && test "$threeway" = t
 778         then
 779                 if (fall_back_3way)
 780                 then
 781                     # Applying the patch to an earlier tree and merging the
 782                     # result may have produced the same tree as ours.
 783                     git diff-index --quiet --cached HEAD -- && {
 784                         say No changes -- Patch already applied.
 785                         go_next
 786                         continue
 787                     }
 788                     # clear apply_status -- we have successfully merged.
 789                     apply_status=0
 790                 fi
 791         fi
 792         if test $apply_status != 0
 793         then
 794                 printf 'Patch failed at %s %s\n' "$msgnum" "$FIRSTLINE"
 795                 stop_here_user_resolve $this
 796         fi
 797
 798         if test -x "$GIT_DIR"/hooks/pre-applypatch
 799         then
 800                 "$GIT_DIR"/hooks/pre-applypatch || stop_here $this
 801         fi
 802
 803         tree=$(git write-tree) &&
 804         commit=$(
 805                 if test -n "$ignore_date"
 806                 then
 807                         GIT_AUTHOR_DATE=
 808                 fi
 809                 parent=$(git rev-parse --verify -q HEAD) ||
 810                 say >&2 "applying to an empty history"
 811
 812                 if test -n "$committer_date_is_author_date"
 813                 then
 814                         GIT_COMMITTER_DATE="$GIT_AUTHOR_DATE"
 815                         export GIT_COMMITTER_DATE
 816                 fi &&
 817                 git commit-tree $tree ${parent:+-p} $parent <"$dotest/final-commit"
 818         ) &&
 819         git update-ref -m "$GIT_REFLOG_ACTION: $FIRSTLINE" HEAD $commit $parent ||
 820         stop_here $this
 821
 822         if test -f "$dotest/original-commit"; then
 823                 echo "$(cat "$dotest/original-commit") $commit" >> "$dotest/rewritten"
 824         fi
 825
 826         if test -x "$GIT_DIR"/hooks/post-applypatch
 827         then
 828                 "$GIT_DIR"/hooks/post-applypatch
 829         fi
 830
 831         go_next
 832 done
 833
 834 if test -s "$dotest"/rewritten; then
 835     git notes copy --for-rewrite=rebase < "$dotest"/rewritten
 836     if test -x "$GIT_DIR"/hooks/post-rewrite; then
 837         "$GIT_DIR"/hooks/post-rewrite rebase < "$dotest"/rewritten
 838     fi
 839 fi
 840
 841 rm -fr "$dotest"
 842 git gc --auto