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     cmd="git apply $git_apply_opt --build-fake-ancestor" &&
 132     cmd="$cmd "'"$dotest/patch-merge-tmp-index" "$dotest/patch"' &&
 133     eval "$cmd" &&
 134     GIT_INDEX_FILE="$dotest/patch-merge-tmp-index" \
 135     git write-tree >"$dotest/patch-merge-base+" ||
 136     cannot_fallback "$(gettext "Repository lacks necessary blobs to fall back on 3-way merge.")"
 137
 138     say Using index info to reconstruct a base tree...
 139
 140     cmd='GIT_INDEX_FILE="$dotest/patch-merge-tmp-index"'
 141     cmd="$cmd git apply --cached $git_apply_opt"' <"$dotest/patch"'
 142     if eval "$cmd"
 143     then
 144         mv "$dotest/patch-merge-base+" "$dotest/patch-merge-base"
 145         mv "$dotest/patch-merge-tmp-index" "$dotest/patch-merge-index"
 146     else
 147         cannot_fallback "$(gettext "Did you hand edit your patch?
 148 It does not apply to blobs recorded in its index.")"
 149     fi
 150
 151     test -f "$dotest/patch-merge-index" &&
 152     his_tree=$(GIT_INDEX_FILE="$dotest/patch-merge-index" git write-tree) &&
 153     orig_tree=$(cat "$dotest/patch-merge-base") &&
 154     rm -fr "$dotest"/patch-merge-* || exit 1
 155
 156     say "$(gettext "Falling back to patching base and 3-way merge...")"
 157
 158     # This is not so wrong.  Depending on which base we picked,
 159     # orig_tree may be wildly different from ours, but his_tree
 160     # has the same set of wildly different changes in parts the
 161     # patch did not touch, so recursive ends up canceling them,
 162     # saying that we reverted all those changes.
 163
 164     eval GITHEAD_$his_tree='"$FIRSTLINE"'
 165     export GITHEAD_$his_tree
 166     if test -n "$GIT_QUIET"
 167     then
 168             GIT_MERGE_VERBOSITY=0 && export GIT_MERGE_VERBOSITY
 169     fi
 170     git-merge-recursive $orig_tree -- HEAD $his_tree || {
 171             git rerere $allow_rerere_autoupdate
 172             echo Failed to merge in the changes.
 173             exit 1
 174     }
 175     unset GITHEAD_$his_tree
 176 }
 177
 178 clean_abort () {
 179         test $# = 0 || echo >&2 "$@"
 180         rm -fr "$dotest"
 181         exit 1
 182 }
 183
 184 patch_format=
 185
 186 check_patch_format () {
 187         # early return if patch_format was set from the command line
 188         if test -n "$patch_format"
 189         then
 190                 return 0
 191         fi
 192
 193         # we default to mbox format if input is from stdin and for
 194         # directories
 195         if test $# = 0 || test "x$1" = "x-" || test -d "$1"
 196         then
 197                 patch_format=mbox
 198                 return 0
 199         fi
 200
 201         # otherwise, check the first few non-blank lines of the first
 202         # patch to try to detect its format
 203         {
 204                 # Start from first line containing non-whitespace
 205                 l1=
 206                 while test -z "$l1"
 207                 do
 208                         read l1 || break
 209                 done
 210                 read l2
 211                 read l3
 212                 case "$l1" in
 213                 "From "* | "From: "*)
 214                         patch_format=mbox
 215                         ;;
 216                 '# This series applies on GIT commit'*)
 217                         patch_format=stgit-series
 218                         ;;
 219                 "# HG changeset patch")
 220                         patch_format=hg
 221                         ;;
 222                 *)
 223                         # if the second line is empty and the third is
 224                         # a From, Author or Date entry, this is very
 225                         # likely an StGIT patch
 226                         case "$l2,$l3" in
 227                         ,"From: "* | ,"Author: "* | ,"Date: "*)
 228                                 patch_format=stgit
 229                                 ;;
 230                         *)
 231                                 ;;
 232                         esac
 233                         ;;
 234                 esac
 235                 if test -z "$patch_format" &&
 236                         test -n "$l1" &&
 237                         test -n "$l2" &&
 238                         test -n "$l3"
 239                 then
 240                         # This begins with three non-empty lines.  Is this a
 241                         # piece of e-mail a-la RFC2822?  Grab all the headers,
 242                         # discarding the indented remainder of folded lines,
 243                         # and see if it looks like that they all begin with the
 244                         # header field names...
 245                         tr -d '\015' <"$1" |
 246                         sed -n -e '/^$/q' -e '/^[       ]/d' -e p |
 247                         sane_egrep -v '^[!-9;-~]+:' >/dev/null ||
 248                         patch_format=mbox
 249                 fi
 250         } < "$1" || clean_abort
 251 }
 252
 253 split_patches () {
 254         case "$patch_format" in
 255         mbox)
 256                 if test -n "$rebasing" || test t = "$keepcr"
 257                 then
 258                     keep_cr=--keep-cr
 259                 else
 260                     keep_cr=
 261                 fi
 262                 git mailsplit -d"$prec" -o"$dotest" -b $keep_cr -- "$@" > "$dotest/last" ||
 263                 clean_abort
 264                 ;;
 265         stgit-series)
 266                 if test $# -ne 1
 267                 then
 268                         clean_abort "$(gettext "Only one StGIT patch series can be applied at once")"
 269                 fi
 270                 series_dir=`dirname "$1"`
 271                 series_file="$1"
 272                 shift
 273                 {
 274                         set x
 275                         while read filename
 276                         do
 277                                 set "$@" "$series_dir/$filename"
 278                         done
 279                         # remove the safety x
 280                         shift
 281                         # remove the arg coming from the first-line comment
 282                         shift
 283                 } < "$series_file" || clean_abort
 284                 # set the patch format appropriately
 285                 patch_format=stgit
 286                 # now handle the actual StGIT patches
 287                 split_patches "$@"
 288                 ;;
 289         stgit)
 290                 this=0
 291                 for stgit in "$@"
 292                 do
 293                         this=`expr "$this" + 1`
 294                         msgnum=`printf "%0${prec}d" $this`
 295                         # Perl version of StGIT parse_patch. The first nonemptyline
 296                         # not starting with Author, From or Date is the
 297                         # subject, and the body starts with the next nonempty
 298                         # line not starting with Author, From or Date
 299                         perl -ne 'BEGIN { $subject = 0 }
 300                                 if ($subject > 1) { print ; }
 301                                 elsif (/^\s+$/) { next ; }
 302                                 elsif (/^Author:/) { s/Author/From/ ; print ;}
 303                                 elsif (/^(From|Date)/) { print ; }
 304                                 elsif ($subject) {
 305                                         $subject = 2 ;
 306                                         print "\n" ;
 307                                         print ;
 308                                 } else {
 309                                         print "Subject: ", $_ ;
 310                                         $subject = 1;
 311                                 }
 312                         ' < "$stgit" > "$dotest/$msgnum" || clean_abort
 313                 done
 314                 echo "$this" > "$dotest/last"
 315                 this=
 316                 msgnum=
 317                 ;;
 318         hg)
 319                 this=0
 320                 for hg in "$@"
 321                 do
 322                         this=$(( $this + 1 ))
 323                         msgnum=$(printf "%0${prec}d" $this)
 324                         # hg stores changeset metadata in #-commented lines preceding
 325                         # the commit message and diff(s). The only metadata we care about
 326                         # are the User and Date (Node ID and Parent are hashes which are
 327                         # only relevant to the hg repository and thus not useful to us)
 328                         # Since we cannot guarantee that the commit message is in
 329                         # git-friendly format, we put no Subject: line and just consume
 330                         # all of the message as the body
 331                         perl -M'POSIX qw(strftime)' -ne 'BEGIN { $subject = 0 }
 332                                 if ($subject) { print ; }
 333                                 elsif (/^\# User /) { s/\# User/From:/ ; print ; }
 334                                 elsif (/^\# Date /) {
 335                                         my ($hashsign, $str, $time, $tz) = split ;
 336                                         $tz = sprintf "%+05d", (0-$tz)/36;
 337                                         print "Date: " .
 338                                               strftime("%a, %d %b %Y %H:%M:%S ",
 339                                                        localtime($time))
 340                                               . "$tz\n";
 341                                 } elsif (/^\# /) { next ; }
 342                                 else {
 343                                         print "\n", $_ ;
 344                                         $subject = 1;
 345                                 }
 346                         ' <"$hg" >"$dotest/$msgnum" || clean_abort
 347                 done
 348                 echo "$this" >"$dotest/last"
 349                 this=
 350                 msgnum=
 351                 ;;
 352         *)
 353                 if test -n "$patch_format"
 354                 then
 355                         clean_abort "$(eval_gettext "Patch format \$patch_format is not supported.")"
 356                 else
 357                         clean_abort "$(gettext "Patch format detection failed.")"
 358                 fi
 359                 ;;
 360         esac
 361 }
 362
 363 prec=4
 364 dotest="$GIT_DIR/rebase-apply"
 365 sign= utf8=t keep= keepcr= skip= interactive= resolved= rebasing= abort=
 366 resolvemsg= resume= scissors= no_inbody_headers=
 367 git_apply_opt=
 368 committer_date_is_author_date=
 369 ignore_date=
 370 allow_rerere_autoupdate=
 371
 372 if test "$(git config --bool --get am.keepcr)" = true
 373 then
 374     keepcr=t
 375 fi
 376
 377 while test $# != 0
 378 do
 379         case "$1" in
 380         -i|--interactive)
 381                 interactive=t ;;
 382         -b|--binary)
 383                 echo >&2 "The $1 option has been a no-op for long time, and"
 384                 echo >&2 "it will be removed. Please do not use it anymore."
 385                 ;;
 386         -3|--3way)
 387                 threeway=t ;;
 388         -s|--signoff)
 389                 sign=t ;;
 390         -u|--utf8)
 391                 utf8=t ;; # this is now default
 392         --no-utf8)
 393                 utf8= ;;
 394         -k|--keep)
 395                 keep=t ;;
 396         --keep-non-patch)
 397                 keep=b ;;
 398         -c|--scissors)
 399                 scissors=t ;;
 400         --no-scissors)
 401                 scissors=f ;;
 402         -r|--resolved|--continue)
 403                 resolved=t ;;
 404         --skip)
 405                 skip=t ;;
 406         --abort)
 407                 abort=t ;;
 408         --rebasing)
 409                 rebasing=t threeway=t keep=t scissors=f no_inbody_headers=t ;;
 410         -d|--dotest)
 411                 die "$(gettext "-d option is no longer supported.  Do not use.")"
 412                 ;;
 413         --resolvemsg)
 414                 shift; resolvemsg=$1 ;;
 415         --whitespace|--directory|--exclude)
 416                 git_apply_opt="$git_apply_opt $(sq "$1=$2")"; shift ;;
 417         -C|-p)
 418                 git_apply_opt="$git_apply_opt $(sq "$1$2")"; shift ;;
 419         --patch-format)
 420                 shift ; patch_format="$1" ;;
 421         --reject|--ignore-whitespace|--ignore-space-change)
 422                 git_apply_opt="$git_apply_opt $1" ;;
 423         --committer-date-is-author-date)
 424                 committer_date_is_author_date=t ;;
 425         --ignore-date)
 426                 ignore_date=t ;;
 427         --rerere-autoupdate|--no-rerere-autoupdate)
 428                 allow_rerere_autoupdate="$1" ;;
 429         -q|--quiet)
 430                 GIT_QUIET=t ;;
 431         --keep-cr)
 432                 keepcr=t ;;
 433         --no-keep-cr)
 434                 keepcr=f ;;
 435         --)
 436                 shift; break ;;
 437         *)
 438                 usage ;;
 439         esac
 440         shift
 441 done
 442
 443 # If the dotest directory exists, but we have finished applying all the
 444 # patches in them, clear it out.
 445 if test -d "$dotest" &&
 446    last=$(cat "$dotest/last") &&
 447    next=$(cat "$dotest/next") &&
 448    test $# != 0 &&
 449    test "$next" -gt "$last"
 450 then
 451    rm -fr "$dotest"
 452 fi
 453
 454 if test -d "$dotest"
 455 then
 456         case "$#,$skip$resolved$abort" in
 457         0,*t*)
 458                 # Explicit resume command and we do not have file, so
 459                 # we are happy.
 460                 : ;;
 461         0,)
 462                 # No file input but without resume parameters; catch
 463                 # user error to feed us a patch from standard input
 464                 # when there is already $dotest.  This is somewhat
 465                 # unreliable -- stdin could be /dev/null for example
 466                 # and the caller did not intend to feed us a patch but
 467                 # wanted to continue unattended.
 468                 test -t 0
 469                 ;;
 470         *)
 471                 false
 472                 ;;
 473         esac ||
 474         die "$(eval_gettext "previous rebase directory \$dotest still exists but mbox given.")"
 475         resume=yes
 476
 477         case "$skip,$abort" in
 478         t,t)
 479                 die "$(gettext "Please make up your mind. --skip or --abort?")"
 480                 ;;
 481         t,)
 482                 git rerere clear
 483                 git read-tree --reset -u HEAD HEAD
 484                 orig_head=$(cat "$GIT_DIR/ORIG_HEAD")
 485                 git reset HEAD
 486                 git update-ref ORIG_HEAD $orig_head
 487                 ;;
 488         ,t)
 489                 if test -f "$dotest/rebasing"
 490                 then
 491                         exec git rebase --abort
 492                 fi
 493                 git rerere clear
 494                 if safe_to_abort
 495                 then
 496                         git read-tree --reset -u HEAD ORIG_HEAD
 497                         git reset ORIG_HEAD
 498                 fi
 499                 rm -fr "$dotest"
 500                 exit ;;
 501         esac
 502         rm -f "$dotest/dirtyindex"
 503 else
 504         # Make sure we are not given --skip, --resolved, nor --abort
 505         test "$skip$resolved$abort" = "" ||
 506                 die "$(gettext "Resolve operation not in progress, we are not resuming.")"
 507
 508         # Start afresh.
 509         mkdir -p "$dotest" || exit
 510
 511         if test -n "$prefix" && test $# != 0
 512         then
 513                 first=t
 514                 for arg
 515                 do
 516                         test -n "$first" && {
 517                                 set x
 518                                 first=
 519                         }
 520                         if is_absolute_path "$arg"
 521                         then
 522                                 set "$@" "$arg"
 523                         else
 524                                 set "$@" "$prefix$arg"
 525                         fi
 526                 done
 527                 shift
 528         fi
 529
 530         check_patch_format "$@"
 531
 532         split_patches "$@"
 533
 534         # -i can and must be given when resuming; everything
 535         # else is kept
 536         echo " $git_apply_opt" >"$dotest/apply-opt"
 537         echo "$threeway" >"$dotest/threeway"
 538         echo "$sign" >"$dotest/sign"
 539         echo "$utf8" >"$dotest/utf8"
 540         echo "$keep" >"$dotest/keep"
 541         echo "$scissors" >"$dotest/scissors"
 542         echo "$no_inbody_headers" >"$dotest/no_inbody_headers"
 543         echo "$GIT_QUIET" >"$dotest/quiet"
 544         echo 1 >"$dotest/next"
 545         if test -n "$rebasing"
 546         then
 547                 : >"$dotest/rebasing"
 548         else
 549                 : >"$dotest/applying"
 550                 if test -n "$HAS_HEAD"
 551                 then
 552                         git update-ref ORIG_HEAD HEAD
 553                 else
 554                         git update-ref -d ORIG_HEAD >/dev/null 2>&1
 555                 fi
 556         fi
 557 fi
 558
 559 git update-index -q --refresh
 560
 561 case "$resolved" in
 562 '')
 563         case "$HAS_HEAD" in
 564         '')
 565                 files=$(git ls-files) ;;
 566         ?*)
 567                 files=$(git diff-index --ignore-submodules --cached \
 568                         --name-only HEAD --) ;;
 569         esac || exit
 570         if test "$files"
 571         then
 572                 test -n "$HAS_HEAD" && : >"$dotest/dirtyindex"
 573                 die "$(eval_gettext "Dirty index: cannot apply patches (dirty: \$files)")"
 574         fi
 575 esac
 576
 577 # Now, decide what command line options we will give to the git
 578 # commands we invoke, based on the result of parsing command line
 579 # options and previous invocation state stored in $dotest/ files.
 580
 581 if test "$(cat "$dotest/utf8")" = t
 582 then
 583         utf8=-u
 584 else
 585         utf8=-n
 586 fi
 587 keep=$(cat "$dotest/keep")
 588 case "$keep" in
 589 t)
 590         keep=-k ;;
 591 b)
 592         keep=-b ;;
 593 *)
 594         keep= ;;
 595 esac
 596 case "$(cat "$dotest/scissors")" in
 597 t)
 598         scissors=--scissors ;;
 599 f)
 600         scissors=--no-scissors ;;
 601 esac
 602 if test "$(cat "$dotest/no_inbody_headers")" = t
 603 then
 604         no_inbody_headers=--no-inbody-headers
 605 else
 606         no_inbody_headers=
 607 fi
 608 if test "$(cat "$dotest/quiet")" = t
 609 then
 610         GIT_QUIET=t
 611 fi
 612 if test "$(cat "$dotest/threeway")" = t
 613 then
 614         threeway=t
 615 fi
 616 git_apply_opt=$(cat "$dotest/apply-opt")
 617 if test "$(cat "$dotest/sign")" = t
 618 then
 619         SIGNOFF=`git var GIT_COMMITTER_IDENT | sed -e '
 620                         s/>.*/>/
 621                         s/^/Signed-off-by: /'
 622                 `
 623 else
 624         SIGNOFF=
 625 fi
 626
 627 last=`cat "$dotest/last"`
 628 this=`cat "$dotest/next"`
 629 if test "$skip" = t
 630 then
 631         this=`expr "$this" + 1`
 632         resume=
 633 fi
 634
 635 while test "$this" -le "$last"
 636 do
 637         msgnum=`printf "%0${prec}d" $this`
 638         next=`expr "$this" + 1`
 639         test -f "$dotest/$msgnum" || {
 640                 resume=
 641                 go_next
 642                 continue
 643         }
 644
 645         # If we are not resuming, parse and extract the patch information
 646         # into separate files:
 647         #  - info records the authorship and title
 648         #  - msg is the rest of commit log message
 649         #  - patch is the patch body.
 650         #
 651         # When we are resuming, these files are either already prepared
 652         # by the user, or the user can tell us to do so by --resolved flag.
 653         case "$resume" in
 654         '')
 655                 git mailinfo $keep $no_inbody_headers $scissors $utf8 "$dotest/msg" "$dotest/patch" \
 656                         <"$dotest/$msgnum" >"$dotest/info" ||
 657                         stop_here $this
 658
 659                 # skip pine's internal folder data
 660                 sane_grep '^Author: Mail System Internal Data$' \
 661                         <"$dotest"/info >/dev/null &&
 662                         go_next && continue
 663
 664                 test -s "$dotest/patch" || {
 665                         eval_gettextln "Patch is empty.  Was it split wrong?
 666 If you would prefer to skip this patch, instead run \"\$cmdline --skip\".
 667 To restore the original branch and stop patching run \"\$cmdline --abort\"."
 668                         stop_here $this
 669                 }
 670                 rm -f "$dotest/original-commit" "$dotest/author-script"
 671                 if test -f "$dotest/rebasing" &&
 672                         commit=$(sed -e 's/^From \([0-9a-f]*\) .*/\1/' \
 673                                 -e q "$dotest/$msgnum") &&
 674                         test "$(git cat-file -t "$commit")" = commit
 675                 then
 676                         git cat-file commit "$commit" |
 677                         sed -e '1,/^$/d' >"$dotest/msg-clean"
 678                         echo "$commit" > "$dotest/original-commit"
 679                         get_author_ident_from_commit "$commit" > "$dotest/author-script"
 680                 else
 681                         {
 682                                 sed -n '/^Subject/ s/Subject: //p' "$dotest/info"
 683                                 echo
 684                                 cat "$dotest/msg"
 685                         } |
 686                         git stripspace > "$dotest/msg-clean"
 687                 fi
 688                 ;;
 689         esac
 690
 691         if test -f "$dotest/author-script"
 692         then
 693                 eval $(cat "$dotest/author-script")
 694         else
 695                 GIT_AUTHOR_NAME="$(sed -n '/^Author/ s/Author: //p' "$dotest/info")"
 696                 GIT_AUTHOR_EMAIL="$(sed -n '/^Email/ s/Email: //p' "$dotest/info")"
 697                 GIT_AUTHOR_DATE="$(sed -n '/^Date/ s/Date: //p' "$dotest/info")"
 698         fi
 699
 700         if test -z "$GIT_AUTHOR_EMAIL"
 701         then
 702                 gettextln "Patch does not have a valid e-mail address."
 703                 stop_here $this
 704         fi
 705
 706         export GIT_AUTHOR_NAME GIT_AUTHOR_EMAIL GIT_AUTHOR_DATE
 707
 708         case "$resume" in
 709         '')
 710             if test '' != "$SIGNOFF"
 711             then
 712                 LAST_SIGNED_OFF_BY=`
 713                     sed -ne '/^Signed-off-by: /p' \
 714                     "$dotest/msg-clean" |
 715                     sed -ne '$p'
 716                 `
 717                 ADD_SIGNOFF=`
 718                     test "$LAST_SIGNED_OFF_BY" = "$SIGNOFF" || {
 719                     test '' = "$LAST_SIGNED_OFF_BY" && echo
 720                     echo "$SIGNOFF"
 721                 }`
 722             else
 723                 ADD_SIGNOFF=
 724             fi
 725             {
 726                 if test -s "$dotest/msg-clean"
 727                 then
 728                         cat "$dotest/msg-clean"
 729                 fi
 730                 if test '' != "$ADD_SIGNOFF"
 731                 then
 732                         echo "$ADD_SIGNOFF"
 733                 fi
 734             } >"$dotest/final-commit"
 735             ;;
 736         *)
 737                 case "$resolved$interactive" in
 738                 tt)
 739                         # This is used only for interactive view option.
 740                         git diff-index --ignore-submodules -p --cached \
 741                                 HEAD -- >"$dotest/patch"
 742                         ;;
 743                 esac
 744         esac
 745
 746         resume=
 747         if test "$interactive" = t
 748         then
 749             test -t 0 ||
 750             die "$(gettext "cannot be interactive without stdin connected to a terminal.")"
 751             action=again
 752             while test "$action" = again
 753             do
 754                 gettextln "Commit Body is:"
 755                 echo "--------------------------"
 756                 cat "$dotest/final-commit"
 757                 echo "--------------------------"
 758                 # TRANSLATORS: Make sure to include [y], [n], [e], [v] and [a]
 759                 # in your translation. The program will only accept English
 760                 # input at this point.
 761                 gettext "Apply? [y]es/[n]o/[e]dit/[v]iew patch/[a]ccept all "
 762                 read reply
 763                 case "$reply" in
 764                 [yY]*) action=yes ;;
 765                 [aA]*) action=yes interactive= ;;
 766                 [nN]*) action=skip ;;
 767                 [eE]*) git_editor "$dotest/final-commit"
 768                        action=again ;;
 769                 [vV]*) action=again
 770                        git_pager "$dotest/patch" ;;
 771                 *)     action=again ;;
 772                 esac
 773             done
 774         else
 775             action=yes
 776         fi
 777
 778         if test -f "$dotest/final-commit"
 779         then
 780                 FIRSTLINE=$(sed 1q "$dotest/final-commit")
 781         else
 782                 FIRSTLINE=""
 783         fi
 784
 785         if test $action = skip
 786         then
 787                 go_next
 788                 continue
 789         fi
 790
 791         if test -x "$GIT_DIR"/hooks/applypatch-msg
 792         then
 793                 "$GIT_DIR"/hooks/applypatch-msg "$dotest/final-commit" ||
 794                 stop_here $this
 795         fi
 796
 797         say "$(eval_gettext "Applying: \$FIRSTLINE")"
 798
 799         case "$resolved" in
 800         '')
 801                 # When we are allowed to fall back to 3-way later, don't give
 802                 # false errors during the initial attempt.
 803                 squelch=
 804                 if test "$threeway" = t
 805                 then
 806                         squelch='>/dev/null 2>&1 '
 807                 fi
 808                 eval "git apply $squelch$git_apply_opt"' --index "$dotest/patch"'
 809                 apply_status=$?
 810                 ;;
 811         t)
 812                 # Resolved means the user did all the hard work, and
 813                 # we do not have to do any patch application.  Just
 814                 # trust what the user has in the index file and the
 815                 # working tree.
 816                 resolved=
 817                 git diff-index --ignore-submodules --quiet --cached HEAD -- && {
 818                         gettextln "No changes - did you forget to use 'git add'?
 819 If there is nothing left to stage, chances are that something else
 820 already introduced the same changes; you might want to skip this patch."
 821                         stop_here_user_resolve $this
 822                 }
 823                 unmerged=$(git ls-files -u)
 824                 if test -n "$unmerged"
 825                 then
 826                         gettextln "You still have unmerged paths in your index
 827 did you forget to use 'git add'?"
 828                         stop_here_user_resolve $this
 829                 fi
 830                 apply_status=0
 831                 git rerere
 832                 ;;
 833         esac
 834
 835         if test $apply_status != 0 && test "$threeway" = t
 836         then
 837                 if (fall_back_3way)
 838                 then
 839                     # Applying the patch to an earlier tree and merging the
 840                     # result may have produced the same tree as ours.
 841                     git diff-index --ignore-submodules --quiet --cached \
 842                                 HEAD -- && {
 843                         say "$(gettext "No changes -- Patch already applied.")"
 844                         go_next
 845                         continue
 846                     }
 847                     # clear apply_status -- we have successfully merged.
 848                     apply_status=0
 849                 fi
 850         fi
 851         if test $apply_status != 0
 852         then
 853                 eval_gettextln 'Patch failed at $msgnum $FIRSTLINE'
 854                 stop_here_user_resolve $this
 855         fi
 856
 857         if test -x "$GIT_DIR"/hooks/pre-applypatch
 858         then
 859                 "$GIT_DIR"/hooks/pre-applypatch || stop_here $this
 860         fi
 861
 862         tree=$(git write-tree) &&
 863         commit=$(
 864                 if test -n "$ignore_date"
 865                 then
 866                         GIT_AUTHOR_DATE=
 867                 fi
 868                 parent=$(git rev-parse --verify -q HEAD) ||
 869                 say >&2 "$(gettext "applying to an empty history")"
 870
 871                 if test -n "$committer_date_is_author_date"
 872                 then
 873                         GIT_COMMITTER_DATE="$GIT_AUTHOR_DATE"
 874                         export GIT_COMMITTER_DATE
 875                 fi &&
 876                 git commit-tree $tree ${parent:+-p} $parent <"$dotest/final-commit"
 877         ) &&
 878         git update-ref -m "$GIT_REFLOG_ACTION: $FIRSTLINE" HEAD $commit $parent ||
 879         stop_here $this
 880
 881         if test -f "$dotest/original-commit"; then
 882                 echo "$(cat "$dotest/original-commit") $commit" >> "$dotest/rewritten"
 883         fi
 884
 885         if test -x "$GIT_DIR"/hooks/post-applypatch
 886         then
 887                 "$GIT_DIR"/hooks/post-applypatch
 888         fi
 889
 890         go_next
 891 done
 892
 893 if test -s "$dotest"/rewritten; then
 894     git notes copy --for-rewrite=rebase < "$dotest"/rewritten
 895     if test -x "$GIT_DIR"/hooks/post-rewrite; then
 896         "$GIT_DIR"/hooks/post-rewrite rebase < "$dotest"/rewritten
 897     fi
 898 fi
 899
 900 rm -fr "$dotest"
 901 git gc --auto