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-non-patch  pass -b flag to git-mailinfo
  19 keep-cr         pass --keep-cr flag to git-mailsplit for mbox format
  20 no-keep-cr      do not pass --keep-cr flag to git-mailsplit independent of am.keepcr
  21 c,scissors      strip everything before a scissors line
  22 whitespace=     pass it through git-apply
  23 ignore-space-change pass it through git-apply
  24 ignore-whitespace pass it through git-apply
  25 directory=      pass it through git-apply
  26 exclude=        pass it through git-apply
  27 C=              pass it through git-apply
  28 p=              pass it through git-apply
  29 patch-format=   format the patch(es) are in
  30 reject          pass it through git-apply
  31 resolvemsg=     override error message when patch failure occurs
  32 continue        continue applying patches after resolving a conflict
  33 r,resolved      synonyms for --continue
  34 skip            skip the current patch
  35 abort           restore the original branch and abort the patching operation.
  36 committer-date-is-author-date    lie about committer date
  37 ignore-date     use current timestamp for author date
  38 rerere-autoupdate update the index with reused conflict resolution if possible
  39 rebasing*       (internal use for git-rebase)"
  40
  41 . git-sh-setup
  42 . git-sh-i18n
  43 prefix=$(git rev-parse --show-prefix)
  44 set_reflog_action am
  45 require_work_tree
  46 cd_to_toplevel
  47
  48 git var GIT_COMMITTER_IDENT >/dev/null ||
  49         die "$(gettext "You need to set your committer info first")"
  50
  51 if git rev-parse --verify -q HEAD >/dev/null
  52 then
  53         HAS_HEAD=yes
  54 else
  55         HAS_HEAD=
  56 fi
  57
  58 cmdline="git am"
  59 if test '' != "$interactive"
  60 then
  61         cmdline="$cmdline -i"
  62 fi
  63 if test '' != "$threeway"
  64 then
  65         cmdline="$cmdline -3"
  66 fi
  67
  68 sq () {
  69         git rev-parse --sq-quote "$@"
  70 }
  71
  72 stop_here () {
  73     echo "$1" >"$dotest/next"
  74     git rev-parse --verify -q HEAD >"$dotest/abort-safety"
  75     exit 1
  76 }
  77
  78 safe_to_abort () {
  79         if test -f "$dotest/dirtyindex"
  80         then
  81                 return 1
  82         fi
  83
  84         if ! test -s "$dotest/abort-safety"
  85         then
  86                 return 0
  87         fi
  88
  89         abort_safety=$(cat "$dotest/abort-safety")
  90         if test "z$(git rev-parse --verify -q HEAD)" = "z$abort_safety"
  91         then
  92                 return 0
  93         fi
  94                 gettextln "You seem to have moved HEAD since the last 'am' failure.
  95 Not rewinding to ORIG_HEAD" >&2
  96         return 1
  97 }
  98
  99 stop_here_user_resolve () {
 100     if [ -n "$resolvemsg" ]; then
 101             printf '%s\n' "$resolvemsg"
 102             stop_here $1
 103     fi
 104     eval_gettextln "When you have resolved this problem run \"\$cmdline --resolved\".
 105 If you would prefer to skip this patch, instead run \"\$cmdline --skip\".
 106 To restore the original branch and stop patching run \"\$cmdline --abort\"."
 107
 108     stop_here $1
 109 }
 110
 111 go_next () {
 112         rm -f "$dotest/$msgnum" "$dotest/msg" "$dotest/msg-clean" \
 113                 "$dotest/patch" "$dotest/info"
 114         echo "$next" >"$dotest/next"
 115         this=$next
 116 }
 117
 118 cannot_fallback () {
 119         echo "$1"
 120         gettextln "Cannot fall back to three-way merge."
 121         exit 1
 122 }
 123
 124 fall_back_3way () {
 125     O_OBJECT=`cd "$GIT_OBJECT_DIRECTORY" && pwd`
 126
 127     rm -fr "$dotest"/patch-merge-*
 128     mkdir "$dotest/patch-merge-tmp-dir"
 129
 130     # First see if the patch records the index info that we can use.
 131     git apply --build-fake-ancestor "$dotest/patch-merge-tmp-index" \
 132         "$dotest/patch" &&
 133     GIT_INDEX_FILE="$dotest/patch-merge-tmp-index" \
 134     git write-tree >"$dotest/patch-merge-base+" ||
 135     cannot_fallback "$(gettext "Repository lacks necessary blobs to fall back on 3-way merge.")"
 136
 137     say Using index info to reconstruct a base tree...
 138     if GIT_INDEX_FILE="$dotest/patch-merge-tmp-index" \
 139         git apply --cached <"$dotest/patch"
 140     then
 141         mv "$dotest/patch-merge-base+" "$dotest/patch-merge-base"
 142         mv "$dotest/patch-merge-tmp-index" "$dotest/patch-merge-index"
 143     else
 144         cannot_fallback "$(gettext "Did you hand edit your patch?
 145 It does not apply to blobs recorded in its index.")"
 146     fi
 147
 148     test -f "$dotest/patch-merge-index" &&
 149     his_tree=$(GIT_INDEX_FILE="$dotest/patch-merge-index" git write-tree) &&
 150     orig_tree=$(cat "$dotest/patch-merge-base") &&
 151     rm -fr "$dotest"/patch-merge-* || exit 1
 152
 153     say "$(gettext "Falling back to patching base and 3-way merge...")"
 154
 155     # This is not so wrong.  Depending on which base we picked,
 156     # orig_tree may be wildly different from ours, but his_tree
 157     # has the same set of wildly different changes in parts the
 158     # patch did not touch, so recursive ends up canceling them,
 159     # saying that we reverted all those changes.
 160
 161     eval GITHEAD_$his_tree='"$FIRSTLINE"'
 162     export GITHEAD_$his_tree
 163     if test -n "$GIT_QUIET"
 164     then
 165             GIT_MERGE_VERBOSITY=0 && export GIT_MERGE_VERBOSITY
 166     fi
 167     git-merge-recursive $orig_tree -- HEAD $his_tree || {
 168             git rerere $allow_rerere_autoupdate
 169             echo Failed to merge in the changes.
 170             exit 1
 171     }
 172     unset GITHEAD_$his_tree
 173 }
 174
 175 clean_abort () {
 176         test $# = 0 || echo >&2 "$@"
 177         rm -fr "$dotest"
 178         exit 1
 179 }
 180
 181 patch_format=
 182
 183 check_patch_format () {
 184         # early return if patch_format was set from the command line
 185         if test -n "$patch_format"
 186         then
 187                 return 0
 188         fi
 189
 190         # we default to mbox format if input is from stdin and for
 191         # directories
 192         if test $# = 0 || test "x$1" = "x-" || test -d "$1"
 193         then
 194                 patch_format=mbox
 195                 return 0
 196         fi
 197
 198         # otherwise, check the first few non-blank lines of the first
 199         # patch to try to detect its format
 200         {
 201                 # Start from first line containing non-whitespace
 202                 l1=
 203                 while test -z "$l1"
 204                 do
 205                         read l1
 206                 done
 207                 read l2
 208                 read l3
 209                 case "$l1" in
 210                 "From "* | "From: "*)
 211                         patch_format=mbox
 212                         ;;
 213                 '# This series applies on GIT commit'*)
 214                         patch_format=stgit-series
 215                         ;;
 216                 "# HG changeset patch")
 217                         patch_format=hg
 218                         ;;
 219                 *)
 220                         # if the second line is empty and the third is
 221                         # a From, Author or Date entry, this is very
 222                         # likely an StGIT patch
 223                         case "$l2,$l3" in
 224                         ,"From: "* | ,"Author: "* | ,"Date: "*)
 225                                 patch_format=stgit
 226                                 ;;
 227                         *)
 228                                 ;;
 229                         esac
 230                         ;;
 231                 esac
 232                 if test -z "$patch_format" &&
 233                         test -n "$l1" &&
 234                         test -n "$l2" &&
 235                         test -n "$l3"
 236                 then
 237                         # This begins with three non-empty lines.  Is this a
 238                         # piece of e-mail a-la RFC2822?  Grab all the headers,
 239                         # discarding the indented remainder of folded lines,
 240                         # and see if it looks like that they all begin with the
 241                         # header field names...
 242                         tr -d '\015' <"$1" |
 243                         sed -n -e '/^$/q' -e '/^[       ]/d' -e p |
 244                         sane_egrep -v '^[!-9;-~]+:' >/dev/null ||
 245                         patch_format=mbox
 246                 fi
 247         } < "$1" || clean_abort
 248 }
 249
 250 split_patches () {
 251         case "$patch_format" in
 252         mbox)
 253                 if test -n "$rebasing" || test t = "$keepcr"
 254                 then
 255                     keep_cr=--keep-cr
 256                 else
 257                     keep_cr=
 258                 fi
 259                 git mailsplit -d"$prec" -o"$dotest" -b $keep_cr -- "$@" > "$dotest/last" ||
 260                 clean_abort
 261                 ;;
 262         stgit-series)
 263                 if test $# -ne 1
 264                 then
 265                         clean_abort "$(gettext "Only one StGIT patch series can be applied at once")"
 266                 fi
 267                 series_dir=`dirname "$1"`
 268                 series_file="$1"
 269                 shift
 270                 {
 271                         set x
 272                         while read filename
 273                         do
 274                                 set "$@" "$series_dir/$filename"
 275                         done
 276                         # remove the safety x
 277                         shift
 278                         # remove the arg coming from the first-line comment
 279                         shift
 280                 } < "$series_file" || clean_abort
 281                 # set the patch format appropriately
 282                 patch_format=stgit
 283                 # now handle the actual StGIT patches
 284                 split_patches "$@"
 285                 ;;
 286         stgit)
 287                 this=0
 288                 for stgit in "$@"
 289                 do
 290                         this=`expr "$this" + 1`
 291                         msgnum=`printf "%0${prec}d" $this`
 292                         # Perl version of StGIT parse_patch. The first nonemptyline
 293                         # not starting with Author, From or Date is the
 294                         # subject, and the body starts with the next nonempty
 295                         # line not starting with Author, From or Date
 296                         perl -ne 'BEGIN { $subject = 0 }
 297                                 if ($subject > 1) { print ; }
 298                                 elsif (/^\s+$/) { next ; }
 299                                 elsif (/^Author:/) { s/Author/From/ ; print ;}
 300                                 elsif (/^(From|Date)/) { print ; }
 301                                 elsif ($subject) {
 302                                         $subject = 2 ;
 303                                         print "\n" ;
 304                                         print ;
 305                                 } else {
 306                                         print "Subject: ", $_ ;
 307                                         $subject = 1;
 308                                 }
 309                         ' < "$stgit" > "$dotest/$msgnum" || clean_abort
 310                 done
 311                 echo "$this" > "$dotest/last"
 312                 this=
 313                 msgnum=
 314                 ;;
 315         hg)
 316                 this=0
 317                 for hg in "$@"
 318                 do
 319                         this=$(( $this + 1 ))
 320                         msgnum=$(printf "%0${prec}d" $this)
 321                         # hg stores changeset metadata in #-commented lines preceding
 322                         # the commit message and diff(s). The only metadata we care about
 323                         # are the User and Date (Node ID and Parent are hashes which are
 324                         # only relevant to the hg repository and thus not useful to us)
 325                         # Since we cannot guarantee that the commit message is in
 326                         # git-friendly format, we put no Subject: line and just consume
 327                         # all of the message as the body
 328                         perl -M'POSIX qw(strftime)' -ne 'BEGIN { $subject = 0 }
 329                                 if ($subject) { print ; }
 330                                 elsif (/^\# User /) { s/\# User/From:/ ; print ; }
 331                                 elsif (/^\# Date /) {
 332                                         my ($hashsign, $str, $time, $tz) = split ;
 333                                         $tz = sprintf "%+05d", (0-$tz)/36;
 334                                         print "Date: " .
 335                                               strftime("%a, %d %b %Y %H:%M:%S ",
 336                                                        localtime($time))
 337                                               . "$tz\n";
 338                                 } elsif (/^\# /) { next ; }
 339                                 else {
 340                                         print "\n", $_ ;
 341                                         $subject = 1;
 342                                 }
 343                         ' <"$hg" >"$dotest/$msgnum" || clean_abort
 344                 done
 345                 echo "$this" >"$dotest/last"
 346                 this=
 347                 msgnum=
 348                 ;;
 349         *)
 350                 if test -n "$patch_format"
 351                 then
 352                         clean_abort "$(eval_gettext "Patch format \$patch_format is not supported.")"
 353                 else
 354                         clean_abort "$(gettext "Patch format detection failed.")"
 355                 fi
 356                 ;;
 357         esac
 358 }
 359
 360 prec=4
 361 dotest="$GIT_DIR/rebase-apply"
 362 sign= utf8=t keep= keepcr= skip= interactive= resolved= rebasing= abort=
 363 resolvemsg= resume= scissors= no_inbody_headers=
 364 git_apply_opt=
 365 committer_date_is_author_date=
 366 ignore_date=
 367 allow_rerere_autoupdate=
 368
 369 if test "$(git config --bool --get am.keepcr)" = true
 370 then
 371     keepcr=t
 372 fi
 373
 374 while test $# != 0
 375 do
 376         case "$1" in
 377         -i|--interactive)
 378                 interactive=t ;;
 379         -b|--binary)
 380                 : ;;
 381         -3|--3way)
 382                 threeway=t ;;
 383         -s|--signoff)
 384                 sign=t ;;
 385         -u|--utf8)
 386                 utf8=t ;; # this is now default
 387         --no-utf8)
 388                 utf8= ;;
 389         -k|--keep)
 390                 keep=t ;;
 391         --keep-non-patch)
 392                 keep=b ;;
 393         -c|--scissors)
 394                 scissors=t ;;
 395         --no-scissors)
 396                 scissors=f ;;
 397         -r|--resolved|--continue)
 398                 resolved=t ;;
 399         --skip)
 400                 skip=t ;;
 401         --abort)
 402                 abort=t ;;
 403         --rebasing)
 404                 rebasing=t threeway=t keep=t scissors=f no_inbody_headers=t ;;
 405         -d|--dotest)
 406                 die "$(gettext "-d option is no longer supported.  Do not use.")"
 407                 ;;
 408         --resolvemsg)
 409                 shift; resolvemsg=$1 ;;
 410         --whitespace|--directory|--exclude)
 411                 git_apply_opt="$git_apply_opt $(sq "$1=$2")"; shift ;;
 412         -C|-p)
 413                 git_apply_opt="$git_apply_opt $(sq "$1$2")"; shift ;;
 414         --patch-format)
 415                 shift ; patch_format="$1" ;;
 416         --reject|--ignore-whitespace|--ignore-space-change)
 417                 git_apply_opt="$git_apply_opt $1" ;;
 418         --committer-date-is-author-date)
 419                 committer_date_is_author_date=t ;;
 420         --ignore-date)
 421                 ignore_date=t ;;
 422         --rerere-autoupdate|--no-rerere-autoupdate)
 423                 allow_rerere_autoupdate="$1" ;;
 424         -q|--quiet)
 425                 GIT_QUIET=t ;;
 426         --keep-cr)
 427                 keepcr=t ;;
 428         --no-keep-cr)
 429                 keepcr=f ;;
 430         --)
 431                 shift; break ;;
 432         *)
 433                 usage ;;
 434         esac
 435         shift
 436 done
 437
 438 # If the dotest directory exists, but we have finished applying all the
 439 # patches in them, clear it out.
 440 if test -d "$dotest" &&
 441    last=$(cat "$dotest/last") &&
 442    next=$(cat "$dotest/next") &&
 443    test $# != 0 &&
 444    test "$next" -gt "$last"
 445 then
 446    rm -fr "$dotest"
 447 fi
 448
 449 if test -d "$dotest"
 450 then
 451         case "$#,$skip$resolved$abort" in
 452         0,*t*)
 453                 # Explicit resume command and we do not have file, so
 454                 # we are happy.
 455                 : ;;
 456         0,)
 457                 # No file input but without resume parameters; catch
 458                 # user error to feed us a patch from standard input
 459                 # when there is already $dotest.  This is somewhat
 460                 # unreliable -- stdin could be /dev/null for example
 461                 # and the caller did not intend to feed us a patch but
 462                 # wanted to continue unattended.
 463                 test -t 0
 464                 ;;
 465         *)
 466                 false
 467                 ;;
 468         esac ||
 469         die "$(eval_gettext "previous rebase directory \$dotest still exists but mbox given.")"
 470         resume=yes
 471
 472         case "$skip,$abort" in
 473         t,t)
 474                 die "$(gettext "Please make up your mind. --skip or --abort?")"
 475                 ;;
 476         t,)
 477                 git rerere clear
 478                 git read-tree --reset -u HEAD HEAD
 479                 orig_head=$(cat "$GIT_DIR/ORIG_HEAD")
 480                 git reset HEAD
 481                 git update-ref ORIG_HEAD $orig_head
 482                 ;;
 483         ,t)
 484                 if test -f "$dotest/rebasing"
 485                 then
 486                         exec git rebase --abort
 487                 fi
 488                 git rerere clear
 489                 if safe_to_abort
 490                 then
 491                         git read-tree --reset -u HEAD ORIG_HEAD
 492                         git reset ORIG_HEAD
 493                 fi
 494                 rm -fr "$dotest"
 495                 exit ;;
 496         esac
 497         rm -f "$dotest/dirtyindex"
 498 else
 499         # Make sure we are not given --skip, --resolved, nor --abort
 500         test "$skip$resolved$abort" = "" ||
 501                 die "$(gettext "Resolve operation not in progress, we are not resuming.")"
 502
 503         # Start afresh.
 504         mkdir -p "$dotest" || exit
 505
 506         if test -n "$prefix" && test $# != 0
 507         then
 508                 first=t
 509                 for arg
 510                 do
 511                         test -n "$first" && {
 512                                 set x
 513                                 first=
 514                         }
 515                         if is_absolute_path "$arg"
 516                         then
 517                                 set "$@" "$arg"
 518                         else
 519                                 set "$@" "$prefix$arg"
 520                         fi
 521                 done
 522                 shift
 523         fi
 524
 525         check_patch_format "$@"
 526
 527         split_patches "$@"
 528
 529         # -i can and must be given when resuming; everything
 530         # else is kept
 531         echo " $git_apply_opt" >"$dotest/apply-opt"
 532         echo "$threeway" >"$dotest/threeway"
 533         echo "$sign" >"$dotest/sign"
 534         echo "$utf8" >"$dotest/utf8"
 535         echo "$keep" >"$dotest/keep"
 536         echo "$scissors" >"$dotest/scissors"
 537         echo "$no_inbody_headers" >"$dotest/no_inbody_headers"
 538         echo "$GIT_QUIET" >"$dotest/quiet"
 539         echo 1 >"$dotest/next"
 540         if test -n "$rebasing"
 541         then
 542                 : >"$dotest/rebasing"
 543         else
 544                 : >"$dotest/applying"
 545                 if test -n "$HAS_HEAD"
 546                 then
 547                         git update-ref ORIG_HEAD HEAD
 548                 else
 549                         git update-ref -d ORIG_HEAD >/dev/null 2>&1
 550                 fi
 551         fi
 552 fi
 553
 554 git update-index -q --refresh
 555
 556 case "$resolved" in
 557 '')
 558         case "$HAS_HEAD" in
 559         '')
 560                 files=$(git ls-files) ;;
 561         ?*)
 562                 files=$(git diff-index --ignore-submodules --cached \
 563                         --name-only HEAD --) ;;
 564         esac || exit
 565         if test "$files"
 566         then
 567                 test -n "$HAS_HEAD" && : >"$dotest/dirtyindex"
 568                 die "$(eval_gettext "Dirty index: cannot apply patches (dirty: \$files)")"
 569         fi
 570 esac
 571
 572 # Now, decide what command line options we will give to the git
 573 # commands we invoke, based on the result of parsing command line
 574 # options and previous invocation state stored in $dotest/ files.
 575
 576 if test "$(cat "$dotest/utf8")" = t
 577 then
 578         utf8=-u
 579 else
 580         utf8=-n
 581 fi
 582 keep=$(cat "$dotest/keep")
 583 case "$keep" in
 584 t)
 585         keep=-k ;;
 586 b)
 587         keep=-b ;;
 588 *)
 589         keep= ;;
 590 esac
 591 case "$(cat "$dotest/scissors")" in
 592 t)
 593         scissors=--scissors ;;
 594 f)
 595         scissors=--no-scissors ;;
 596 esac
 597 if test "$(cat "$dotest/no_inbody_headers")" = t
 598 then
 599         no_inbody_headers=--no-inbody-headers
 600 else
 601         no_inbody_headers=
 602 fi
 603 if test "$(cat "$dotest/quiet")" = t
 604 then
 605         GIT_QUIET=t
 606 fi
 607 if test "$(cat "$dotest/threeway")" = t
 608 then
 609         threeway=t
 610 fi
 611 git_apply_opt=$(cat "$dotest/apply-opt")
 612 if test "$(cat "$dotest/sign")" = t
 613 then
 614         SIGNOFF=`git var GIT_COMMITTER_IDENT | sed -e '
 615                         s/>.*/>/
 616                         s/^/Signed-off-by: /'
 617                 `
 618 else
 619         SIGNOFF=
 620 fi
 621
 622 last=`cat "$dotest/last"`
 623 this=`cat "$dotest/next"`
 624 if test "$skip" = t
 625 then
 626         this=`expr "$this" + 1`
 627         resume=
 628 fi
 629
 630 while test "$this" -le "$last"
 631 do
 632         msgnum=`printf "%0${prec}d" $this`
 633         next=`expr "$this" + 1`
 634         test -f "$dotest/$msgnum" || {
 635                 resume=
 636                 go_next
 637                 continue
 638         }
 639
 640         # If we are not resuming, parse and extract the patch information
 641         # into separate files:
 642         #  - info records the authorship and title
 643         #  - msg is the rest of commit log message
 644         #  - patch is the patch body.
 645         #
 646         # When we are resuming, these files are either already prepared
 647         # by the user, or the user can tell us to do so by --resolved flag.
 648         case "$resume" in
 649         '')
 650                 git mailinfo $keep $no_inbody_headers $scissors $utf8 "$dotest/msg" "$dotest/patch" \
 651                         <"$dotest/$msgnum" >"$dotest/info" ||
 652                         stop_here $this
 653
 654                 # skip pine's internal folder data
 655                 sane_grep '^Author: Mail System Internal Data$' \
 656                         <"$dotest"/info >/dev/null &&
 657                         go_next && continue
 658
 659                 test -s "$dotest/patch" || {
 660                         eval_gettextln "Patch is empty.  Was it split wrong?
 661 If you would prefer to skip this patch, instead run \"\$cmdline --skip\".
 662 To restore the original branch and stop patching run \"\$cmdline --abort\"."
 663                         stop_here $this
 664                 }
 665                 rm -f "$dotest/original-commit" "$dotest/author-script"
 666                 if test -f "$dotest/rebasing" &&
 667                         commit=$(sed -e 's/^From \([0-9a-f]*\) .*/\1/' \
 668                                 -e q "$dotest/$msgnum") &&
 669                         test "$(git cat-file -t "$commit")" = commit
 670                 then
 671                         git cat-file commit "$commit" |
 672                         sed -e '1,/^$/d' >"$dotest/msg-clean"
 673                         echo "$commit" > "$dotest/original-commit"
 674                         get_author_ident_from_commit "$commit" > "$dotest/author-script"
 675                 else
 676                         {
 677                                 sed -n '/^Subject/ s/Subject: //p' "$dotest/info"
 678                                 echo
 679                                 cat "$dotest/msg"
 680                         } |
 681                         git stripspace > "$dotest/msg-clean"
 682                 fi
 683                 ;;
 684         esac
 685
 686         if test -f "$dotest/author-script"
 687         then
 688                 eval $(cat "$dotest/author-script")
 689         else
 690                 GIT_AUTHOR_NAME="$(sed -n '/^Author/ s/Author: //p' "$dotest/info")"
 691                 GIT_AUTHOR_EMAIL="$(sed -n '/^Email/ s/Email: //p' "$dotest/info")"
 692                 GIT_AUTHOR_DATE="$(sed -n '/^Date/ s/Date: //p' "$dotest/info")"
 693         fi
 694
 695         if test -z "$GIT_AUTHOR_EMAIL"
 696         then
 697                 gettextln "Patch does not have a valid e-mail address."
 698                 stop_here $this
 699         fi
 700
 701         export GIT_AUTHOR_NAME GIT_AUTHOR_EMAIL GIT_AUTHOR_DATE
 702
 703         case "$resume" in
 704         '')
 705             if test '' != "$SIGNOFF"
 706             then
 707                 LAST_SIGNED_OFF_BY=`
 708                     sed -ne '/^Signed-off-by: /p' \
 709                     "$dotest/msg-clean" |
 710                     sed -ne '$p'
 711                 `
 712                 ADD_SIGNOFF=`
 713                     test "$LAST_SIGNED_OFF_BY" = "$SIGNOFF" || {
 714                     test '' = "$LAST_SIGNED_OFF_BY" && echo
 715                     echo "$SIGNOFF"
 716                 }`
 717             else
 718                 ADD_SIGNOFF=
 719             fi
 720             {
 721                 if test -s "$dotest/msg-clean"
 722                 then
 723                         cat "$dotest/msg-clean"
 724                 fi
 725                 if test '' != "$ADD_SIGNOFF"
 726                 then
 727                         echo "$ADD_SIGNOFF"
 728                 fi
 729             } >"$dotest/final-commit"
 730             ;;
 731         *)
 732                 case "$resolved$interactive" in
 733                 tt)
 734                         # This is used only for interactive view option.
 735                         git diff-index --ignore-submodules -p --cached \
 736                                 HEAD -- >"$dotest/patch"
 737                         ;;
 738                 esac
 739         esac
 740
 741         resume=
 742         if test "$interactive" = t
 743         then
 744             test -t 0 ||
 745             die "$(gettext "cannot be interactive without stdin connected to a terminal.")"
 746             action=again
 747             while test "$action" = again
 748             do
 749                 gettextln "Commit Body is:"
 750                 echo "--------------------------"
 751                 cat "$dotest/final-commit"
 752                 echo "--------------------------"
 753                 # TRANSLATORS: Make sure to include [y], [n], [e], [v] and [a]
 754                 # in your translation. The program will only accept English
 755                 # input at this point.
 756                 gettext "Apply? [y]es/[n]o/[e]dit/[v]iew patch/[a]ccept all "
 757                 read reply
 758                 case "$reply" in
 759                 [yY]*) action=yes ;;
 760                 [aA]*) action=yes interactive= ;;
 761                 [nN]*) action=skip ;;
 762                 [eE]*) git_editor "$dotest/final-commit"
 763                        action=again ;;
 764                 [vV]*) action=again
 765                        git_pager "$dotest/patch" ;;
 766                 *)     action=again ;;
 767                 esac
 768             done
 769         else
 770             action=yes
 771         fi
 772
 773         if test -f "$dotest/final-commit"
 774         then
 775                 FIRSTLINE=$(sed 1q "$dotest/final-commit")
 776         else
 777                 FIRSTLINE=""
 778         fi
 779
 780         if test $action = skip
 781         then
 782                 go_next
 783                 continue
 784         fi
 785
 786         if test -x "$GIT_DIR"/hooks/applypatch-msg
 787         then
 788                 "$GIT_DIR"/hooks/applypatch-msg "$dotest/final-commit" ||
 789                 stop_here $this
 790         fi
 791
 792         say "$(eval_gettext "Applying: \$FIRSTLINE")"
 793
 794         case "$resolved" in
 795         '')
 796                 # When we are allowed to fall back to 3-way later, don't give
 797                 # false errors during the initial attempt.
 798                 squelch=
 799                 if test "$threeway" = t
 800                 then
 801                         squelch='>/dev/null 2>&1 '
 802                 fi
 803                 eval "git apply $squelch$git_apply_opt"' --index "$dotest/patch"'
 804                 apply_status=$?
 805                 ;;
 806         t)
 807                 # Resolved means the user did all the hard work, and
 808                 # we do not have to do any patch application.  Just
 809                 # trust what the user has in the index file and the
 810                 # working tree.
 811                 resolved=
 812                 git diff-index --ignore-submodules --quiet --cached HEAD -- && {
 813                         gettextln "No changes - did you forget to use 'git add'?
 814 If there is nothing left to stage, chances are that something else
 815 already introduced the same changes; you might want to skip this patch."
 816                         stop_here_user_resolve $this
 817                 }
 818                 unmerged=$(git ls-files -u)
 819                 if test -n "$unmerged"
 820                 then
 821                         gettextln "You still have unmerged paths in your index
 822 did you forget to use 'git add'?"
 823                         stop_here_user_resolve $this
 824                 fi
 825                 apply_status=0
 826                 git rerere
 827                 ;;
 828         esac
 829
 830         if test $apply_status != 0 && test "$threeway" = t
 831         then
 832                 if (fall_back_3way)
 833                 then
 834                     # Applying the patch to an earlier tree and merging the
 835                     # result may have produced the same tree as ours.
 836                     git diff-index --ignore-submodules --quiet --cached \
 837                                 HEAD -- && {
 838                         say "$(gettext "No changes -- Patch already applied.")"
 839                         go_next
 840                         continue
 841                     }
 842                     # clear apply_status -- we have successfully merged.
 843                     apply_status=0
 844                 fi
 845         fi
 846         if test $apply_status != 0
 847         then
 848                 eval_gettextln 'Patch failed at $msgnum $FIRSTLINE'
 849                 stop_here_user_resolve $this
 850         fi
 851
 852         if test -x "$GIT_DIR"/hooks/pre-applypatch
 853         then
 854                 "$GIT_DIR"/hooks/pre-applypatch || stop_here $this
 855         fi
 856
 857         tree=$(git write-tree) &&
 858         commit=$(
 859                 if test -n "$ignore_date"
 860                 then
 861                         GIT_AUTHOR_DATE=
 862                 fi
 863                 parent=$(git rev-parse --verify -q HEAD) ||
 864                 say >&2 "$(gettext "applying to an empty history")"
 865
 866                 if test -n "$committer_date_is_author_date"
 867                 then
 868                         GIT_COMMITTER_DATE="$GIT_AUTHOR_DATE"
 869                         export GIT_COMMITTER_DATE
 870                 fi &&
 871                 git commit-tree $tree ${parent:+-p} $parent <"$dotest/final-commit"
 872         ) &&
 873         git update-ref -m "$GIT_REFLOG_ACTION: $FIRSTLINE" HEAD $commit $parent ||
 874         stop_here $this
 875
 876         if test -f "$dotest/original-commit"; then
 877                 echo "$(cat "$dotest/original-commit") $commit" >> "$dotest/rewritten"
 878         fi
 879
 880         if test -x "$GIT_DIR"/hooks/post-applypatch
 881         then
 882                 "$GIT_DIR"/hooks/post-applypatch
 883         fi
 884
 885         go_next
 886 done
 887
 888 if test -s "$dotest"/rewritten; then
 889     git notes copy --for-rewrite=rebase < "$dotest"/rewritten
 890     if test -x "$GIT_DIR"/hooks/post-rewrite; then
 891         "$GIT_DIR"/hooks/post-rewrite rebase < "$dotest"/rewritten
 892     fi
 893 fi
 894
 895 rm -fr "$dotest"
 896 git gc --auto