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 include=        pass it through git-apply
  28 C=              pass it through git-apply
  29 p=              pass it through git-apply
  30 patch-format=   format the patch(es) are in
  31 reject          pass it through git-apply
  32 resolvemsg=     override error message when patch failure occurs
  33 continue        continue applying patches after resolving a conflict
  34 r,resolved      synonyms for --continue
  35 skip            skip the current patch
  36 abort           restore the original branch and abort the patching operation.
  37 committer-date-is-author-date    lie about committer date
  38 ignore-date     use current timestamp for author date
  39 rerere-autoupdate update the index with reused conflict resolution if possible
  40 rebasing*       (internal use for git-rebase)"
  41
  42 . git-sh-setup
  43 . git-sh-i18n
  44 prefix=$(git rev-parse --show-prefix)
  45 set_reflog_action am
  46 require_work_tree
  47 cd_to_toplevel
  48
  49 git var GIT_COMMITTER_IDENT >/dev/null ||
  50         die "$(gettext "You need to set your committer info first")"
  51
  52 if git rev-parse --verify -q HEAD >/dev/null
  53 then
  54         HAS_HEAD=yes
  55 else
  56         HAS_HEAD=
  57 fi
  58
  59 cmdline="git am"
  60 if test '' != "$interactive"
  61 then
  62         cmdline="$cmdline -i"
  63 fi
  64 if test '' != "$threeway"
  65 then
  66         cmdline="$cmdline -3"
  67 fi
  68
  69 sq () {
  70         git rev-parse --sq-quote "$@"
  71 }
  72
  73 stop_here () {
  74     echo "$1" >"$dotest/next"
  75     git rev-parse --verify -q HEAD >"$dotest/abort-safety"
  76     exit 1
  77 }
  78
  79 safe_to_abort () {
  80         if test -f "$dotest/dirtyindex"
  81         then
  82                 return 1
  83         fi
  84
  85         if ! test -s "$dotest/abort-safety"
  86         then
  87                 return 0
  88         fi
  89
  90         abort_safety=$(cat "$dotest/abort-safety")
  91         if test "z$(git rev-parse --verify -q HEAD)" = "z$abort_safety"
  92         then
  93                 return 0
  94         fi
  95                 gettextln "You seem to have moved HEAD since the last 'am' failure.
  96 Not rewinding to ORIG_HEAD" >&2
  97         return 1
  98 }
  99
 100 stop_here_user_resolve () {
 101     if [ -n "$resolvemsg" ]; then
 102             printf '%s\n' "$resolvemsg"
 103             stop_here $1
 104     fi
 105     eval_gettextln "When you have resolved this problem run \"\$cmdline --resolved\".
 106 If you would prefer to skip this patch, instead run \"\$cmdline --skip\".
 107 To restore the original branch and stop patching run \"\$cmdline --abort\"."
 108
 109     stop_here $1
 110 }
 111
 112 go_next () {
 113         rm -f "$dotest/$msgnum" "$dotest/msg" "$dotest/msg-clean" \
 114                 "$dotest/patch" "$dotest/info"
 115         echo "$next" >"$dotest/next"
 116         this=$next
 117 }
 118
 119 cannot_fallback () {
 120         echo "$1"
 121         gettextln "Cannot fall back to three-way merge."
 122         exit 1
 123 }
 124
 125 fall_back_3way () {
 126     O_OBJECT=`cd "$GIT_OBJECT_DIRECTORY" && pwd`
 127
 128     rm -fr "$dotest"/patch-merge-*
 129     mkdir "$dotest/patch-merge-tmp-dir"
 130
 131     # First see if the patch records the index info that we can use.
 132     cmd="git apply $git_apply_opt --build-fake-ancestor" &&
 133     cmd="$cmd "'"$dotest/patch-merge-tmp-index" "$dotest/patch"' &&
 134     eval "$cmd" &&
 135     GIT_INDEX_FILE="$dotest/patch-merge-tmp-index" \
 136     git write-tree >"$dotest/patch-merge-base+" ||
 137     cannot_fallback "$(gettext "Repository lacks necessary blobs to fall back on 3-way merge.")"
 138
 139     say Using index info to reconstruct a base tree...
 140
 141     cmd='GIT_INDEX_FILE="$dotest/patch-merge-tmp-index"'
 142
 143     if test -z "$GIT_QUIET"
 144     then
 145         eval "$cmd git diff-index --cached --diff-filter=AM --name-status HEAD"
 146     fi
 147
 148     cmd="$cmd git apply --cached $git_apply_opt"' <"$dotest/patch"'
 149     if eval "$cmd"
 150     then
 151         mv "$dotest/patch-merge-base+" "$dotest/patch-merge-base"
 152         mv "$dotest/patch-merge-tmp-index" "$dotest/patch-merge-index"
 153     else
 154         cannot_fallback "$(gettext "Did you hand edit your patch?
 155 It does not apply to blobs recorded in its index.")"
 156     fi
 157
 158     test -f "$dotest/patch-merge-index" &&
 159     his_tree=$(GIT_INDEX_FILE="$dotest/patch-merge-index" git write-tree) &&
 160     orig_tree=$(cat "$dotest/patch-merge-base") &&
 161     rm -fr "$dotest"/patch-merge-* || exit 1
 162
 163     say "$(gettext "Falling back to patching base and 3-way merge...")"
 164
 165     # This is not so wrong.  Depending on which base we picked,
 166     # orig_tree may be wildly different from ours, but his_tree
 167     # has the same set of wildly different changes in parts the
 168     # patch did not touch, so recursive ends up canceling them,
 169     # saying that we reverted all those changes.
 170
 171     eval GITHEAD_$his_tree='"$FIRSTLINE"'
 172     export GITHEAD_$his_tree
 173     if test -n "$GIT_QUIET"
 174     then
 175             GIT_MERGE_VERBOSITY=0 && export GIT_MERGE_VERBOSITY
 176     fi
 177     git-merge-recursive $orig_tree -- HEAD $his_tree || {
 178             git rerere $allow_rerere_autoupdate
 179             echo Failed to merge in the changes.
 180             exit 1
 181     }
 182     unset GITHEAD_$his_tree
 183 }
 184
 185 clean_abort () {
 186         test $# = 0 || echo >&2 "$@"
 187         rm -fr "$dotest"
 188         exit 1
 189 }
 190
 191 patch_format=
 192
 193 check_patch_format () {
 194         # early return if patch_format was set from the command line
 195         if test -n "$patch_format"
 196         then
 197                 return 0
 198         fi
 199
 200         # we default to mbox format if input is from stdin and for
 201         # directories
 202         if test $# = 0 || test "x$1" = "x-" || test -d "$1"
 203         then
 204                 patch_format=mbox
 205                 return 0
 206         fi
 207
 208         # otherwise, check the first few non-blank lines of the first
 209         # patch to try to detect its format
 210         {
 211                 # Start from first line containing non-whitespace
 212                 l1=
 213                 while test -z "$l1"
 214                 do
 215                         read l1 || break
 216                 done
 217                 read l2
 218                 read l3
 219                 case "$l1" in
 220                 "From "* | "From: "*)
 221                         patch_format=mbox
 222                         ;;
 223                 '# This series applies on GIT commit'*)
 224                         patch_format=stgit-series
 225                         ;;
 226                 "# HG changeset patch")
 227                         patch_format=hg
 228                         ;;
 229                 *)
 230                         # if the second line is empty and the third is
 231                         # a From, Author or Date entry, this is very
 232                         # likely an StGIT patch
 233                         case "$l2,$l3" in
 234                         ,"From: "* | ,"Author: "* | ,"Date: "*)
 235                                 patch_format=stgit
 236                                 ;;
 237                         *)
 238                                 ;;
 239                         esac
 240                         ;;
 241                 esac
 242                 if test -z "$patch_format" &&
 243                         test -n "$l1" &&
 244                         test -n "$l2" &&
 245                         test -n "$l3"
 246                 then
 247                         # This begins with three non-empty lines.  Is this a
 248                         # piece of e-mail a-la RFC2822?  Grab all the headers,
 249                         # discarding the indented remainder of folded lines,
 250                         # and see if it looks like that they all begin with the
 251                         # header field names...
 252                         tr -d '\015' <"$1" |
 253                         sed -n -e '/^$/q' -e '/^[       ]/d' -e p |
 254                         sane_egrep -v '^[!-9;-~]+:' >/dev/null ||
 255                         patch_format=mbox
 256                 fi
 257         } < "$1" || clean_abort
 258 }
 259
 260 split_patches () {
 261         case "$patch_format" in
 262         mbox)
 263                 if test -n "$rebasing" || test t = "$keepcr"
 264                 then
 265                     keep_cr=--keep-cr
 266                 else
 267                     keep_cr=
 268                 fi
 269                 git mailsplit -d"$prec" -o"$dotest" -b $keep_cr -- "$@" > "$dotest/last" ||
 270                 clean_abort
 271                 ;;
 272         stgit-series)
 273                 if test $# -ne 1
 274                 then
 275                         clean_abort "$(gettext "Only one StGIT patch series can be applied at once")"
 276                 fi
 277                 series_dir=`dirname "$1"`
 278                 series_file="$1"
 279                 shift
 280                 {
 281                         set x
 282                         while read filename
 283                         do
 284                                 set "$@" "$series_dir/$filename"
 285                         done
 286                         # remove the safety x
 287                         shift
 288                         # remove the arg coming from the first-line comment
 289                         shift
 290                 } < "$series_file" || clean_abort
 291                 # set the patch format appropriately
 292                 patch_format=stgit
 293                 # now handle the actual StGIT patches
 294                 split_patches "$@"
 295                 ;;
 296         stgit)
 297                 this=0
 298                 for stgit in "$@"
 299                 do
 300                         this=`expr "$this" + 1`
 301                         msgnum=`printf "%0${prec}d" $this`
 302                         # Perl version of StGIT parse_patch. The first nonemptyline
 303                         # not starting with Author, From or Date is the
 304                         # subject, and the body starts with the next nonempty
 305                         # line not starting with Author, From or Date
 306                         perl -ne 'BEGIN { $subject = 0 }
 307                                 if ($subject > 1) { print ; }
 308                                 elsif (/^\s+$/) { next ; }
 309                                 elsif (/^Author:/) { s/Author/From/ ; print ;}
 310                                 elsif (/^(From|Date)/) { print ; }
 311                                 elsif ($subject) {
 312                                         $subject = 2 ;
 313                                         print "\n" ;
 314                                         print ;
 315                                 } else {
 316                                         print "Subject: ", $_ ;
 317                                         $subject = 1;
 318                                 }
 319                         ' < "$stgit" > "$dotest/$msgnum" || clean_abort
 320                 done
 321                 echo "$this" > "$dotest/last"
 322                 this=
 323                 msgnum=
 324                 ;;
 325         hg)
 326                 this=0
 327                 for hg in "$@"
 328                 do
 329                         this=$(( $this + 1 ))
 330                         msgnum=$(printf "%0${prec}d" $this)
 331                         # hg stores changeset metadata in #-commented lines preceding
 332                         # the commit message and diff(s). The only metadata we care about
 333                         # are the User and Date (Node ID and Parent are hashes which are
 334                         # only relevant to the hg repository and thus not useful to us)
 335                         # Since we cannot guarantee that the commit message is in
 336                         # git-friendly format, we put no Subject: line and just consume
 337                         # all of the message as the body
 338                         perl -M'POSIX qw(strftime)' -ne 'BEGIN { $subject = 0 }
 339                                 if ($subject) { print ; }
 340                                 elsif (/^\# User /) { s/\# User/From:/ ; print ; }
 341                                 elsif (/^\# Date /) {
 342                                         my ($hashsign, $str, $time, $tz) = split ;
 343                                         $tz = sprintf "%+05d", (0-$tz)/36;
 344                                         print "Date: " .
 345                                               strftime("%a, %d %b %Y %H:%M:%S ",
 346                                                        localtime($time))
 347                                               . "$tz\n";
 348                                 } elsif (/^\# /) { next ; }
 349                                 else {
 350                                         print "\n", $_ ;
 351                                         $subject = 1;
 352                                 }
 353                         ' <"$hg" >"$dotest/$msgnum" || clean_abort
 354                 done
 355                 echo "$this" >"$dotest/last"
 356                 this=
 357                 msgnum=
 358                 ;;
 359         *)
 360                 if test -n "$patch_format"
 361                 then
 362                         clean_abort "$(eval_gettext "Patch format \$patch_format is not supported.")"
 363                 else
 364                         clean_abort "$(gettext "Patch format detection failed.")"
 365                 fi
 366                 ;;
 367         esac
 368 }
 369
 370 prec=4
 371 dotest="$GIT_DIR/rebase-apply"
 372 sign= utf8=t keep= keepcr= skip= interactive= resolved= rebasing= abort=
 373 resolvemsg= resume= scissors= no_inbody_headers=
 374 git_apply_opt=
 375 committer_date_is_author_date=
 376 ignore_date=
 377 allow_rerere_autoupdate=
 378
 379 if test "$(git config --bool --get am.keepcr)" = true
 380 then
 381     keepcr=t
 382 fi
 383
 384 while test $# != 0
 385 do
 386         case "$1" in
 387         -i|--interactive)
 388                 interactive=t ;;
 389         -b|--binary)
 390                 echo >&2 "The $1 option has been a no-op for long time, and"
 391                 echo >&2 "it will be removed. Please do not use it anymore."
 392                 ;;
 393         -3|--3way)
 394                 threeway=t ;;
 395         -s|--signoff)
 396                 sign=t ;;
 397         -u|--utf8)
 398                 utf8=t ;; # this is now default
 399         --no-utf8)
 400                 utf8= ;;
 401         -k|--keep)
 402                 keep=t ;;
 403         --keep-non-patch)
 404                 keep=b ;;
 405         -c|--scissors)
 406                 scissors=t ;;
 407         --no-scissors)
 408                 scissors=f ;;
 409         -r|--resolved|--continue)
 410                 resolved=t ;;
 411         --skip)
 412                 skip=t ;;
 413         --abort)
 414                 abort=t ;;
 415         --rebasing)
 416                 rebasing=t threeway=t keep=t scissors=f no_inbody_headers=t ;;
 417         -d|--dotest)
 418                 die "$(gettext "-d option is no longer supported.  Do not use.")"
 419                 ;;
 420         --resolvemsg)
 421                 shift; resolvemsg=$1 ;;
 422         --whitespace|--directory|--exclude|--include)
 423                 git_apply_opt="$git_apply_opt $(sq "$1=$2")"; shift ;;
 424         -C|-p)
 425                 git_apply_opt="$git_apply_opt $(sq "$1$2")"; shift ;;
 426         --patch-format)
 427                 shift ; patch_format="$1" ;;
 428         --reject|--ignore-whitespace|--ignore-space-change)
 429                 git_apply_opt="$git_apply_opt $1" ;;
 430         --committer-date-is-author-date)
 431                 committer_date_is_author_date=t ;;
 432         --ignore-date)
 433                 ignore_date=t ;;
 434         --rerere-autoupdate|--no-rerere-autoupdate)
 435                 allow_rerere_autoupdate="$1" ;;
 436         -q|--quiet)
 437                 GIT_QUIET=t ;;
 438         --keep-cr)
 439                 keepcr=t ;;
 440         --no-keep-cr)
 441                 keepcr=f ;;
 442         --)
 443                 shift; break ;;
 444         *)
 445                 usage ;;
 446         esac
 447         shift
 448 done
 449
 450 # If the dotest directory exists, but we have finished applying all the
 451 # patches in them, clear it out.
 452 if test -d "$dotest" &&
 453    last=$(cat "$dotest/last") &&
 454    next=$(cat "$dotest/next") &&
 455    test $# != 0 &&
 456    test "$next" -gt "$last"
 457 then
 458    rm -fr "$dotest"
 459 fi
 460
 461 if test -d "$dotest"
 462 then
 463         case "$#,$skip$resolved$abort" in
 464         0,*t*)
 465                 # Explicit resume command and we do not have file, so
 466                 # we are happy.
 467                 : ;;
 468         0,)
 469                 # No file input but without resume parameters; catch
 470                 # user error to feed us a patch from standard input
 471                 # when there is already $dotest.  This is somewhat
 472                 # unreliable -- stdin could be /dev/null for example
 473                 # and the caller did not intend to feed us a patch but
 474                 # wanted to continue unattended.
 475                 test -t 0
 476                 ;;
 477         *)
 478                 false
 479                 ;;
 480         esac ||
 481         die "$(eval_gettext "previous rebase directory \$dotest still exists but mbox given.")"
 482         resume=yes
 483
 484         case "$skip,$abort" in
 485         t,t)
 486                 die "$(gettext "Please make up your mind. --skip or --abort?")"
 487                 ;;
 488         t,)
 489                 git rerere clear
 490                 git read-tree --reset -u HEAD HEAD
 491                 orig_head=$(cat "$GIT_DIR/ORIG_HEAD")
 492                 git reset HEAD
 493                 git update-ref ORIG_HEAD $orig_head
 494                 ;;
 495         ,t)
 496                 if test -f "$dotest/rebasing"
 497                 then
 498                         exec git rebase --abort
 499                 fi
 500                 git rerere clear
 501                 if safe_to_abort
 502                 then
 503                         git read-tree --reset -u HEAD ORIG_HEAD
 504                         git reset ORIG_HEAD
 505                 fi
 506                 rm -fr "$dotest"
 507                 exit ;;
 508         esac
 509         rm -f "$dotest/dirtyindex"
 510 else
 511         # Make sure we are not given --skip, --resolved, nor --abort
 512         test "$skip$resolved$abort" = "" ||
 513                 die "$(gettext "Resolve operation not in progress, we are not resuming.")"
 514
 515         # Start afresh.
 516         mkdir -p "$dotest" || exit
 517
 518         if test -n "$prefix" && test $# != 0
 519         then
 520                 first=t
 521                 for arg
 522                 do
 523                         test -n "$first" && {
 524                                 set x
 525                                 first=
 526                         }
 527                         if is_absolute_path "$arg"
 528                         then
 529                                 set "$@" "$arg"
 530                         else
 531                                 set "$@" "$prefix$arg"
 532                         fi
 533                 done
 534                 shift
 535         fi
 536
 537         check_patch_format "$@"
 538
 539         split_patches "$@"
 540
 541         # -i can and must be given when resuming; everything
 542         # else is kept
 543         echo " $git_apply_opt" >"$dotest/apply-opt"
 544         echo "$threeway" >"$dotest/threeway"
 545         echo "$sign" >"$dotest/sign"
 546         echo "$utf8" >"$dotest/utf8"
 547         echo "$keep" >"$dotest/keep"
 548         echo "$scissors" >"$dotest/scissors"
 549         echo "$no_inbody_headers" >"$dotest/no_inbody_headers"
 550         echo "$GIT_QUIET" >"$dotest/quiet"
 551         echo 1 >"$dotest/next"
 552         if test -n "$rebasing"
 553         then
 554                 : >"$dotest/rebasing"
 555         else
 556                 : >"$dotest/applying"
 557                 if test -n "$HAS_HEAD"
 558                 then
 559                         git update-ref ORIG_HEAD HEAD
 560                 else
 561                         git update-ref -d ORIG_HEAD >/dev/null 2>&1
 562                 fi
 563         fi
 564 fi
 565
 566 git update-index -q --refresh
 567
 568 case "$resolved" in
 569 '')
 570         case "$HAS_HEAD" in
 571         '')
 572                 files=$(git ls-files) ;;
 573         ?*)
 574                 files=$(git diff-index --ignore-submodules --cached \
 575                         --name-only HEAD --) ;;
 576         esac || exit
 577         if test "$files"
 578         then
 579                 test -n "$HAS_HEAD" && : >"$dotest/dirtyindex"
 580                 die "$(eval_gettext "Dirty index: cannot apply patches (dirty: \$files)")"
 581         fi
 582 esac
 583
 584 # Now, decide what command line options we will give to the git
 585 # commands we invoke, based on the result of parsing command line
 586 # options and previous invocation state stored in $dotest/ files.
 587
 588 if test "$(cat "$dotest/utf8")" = t
 589 then
 590         utf8=-u
 591 else
 592         utf8=-n
 593 fi
 594 keep=$(cat "$dotest/keep")
 595 case "$keep" in
 596 t)
 597         keep=-k ;;
 598 b)
 599         keep=-b ;;
 600 *)
 601         keep= ;;
 602 esac
 603 case "$(cat "$dotest/scissors")" in
 604 t)
 605         scissors=--scissors ;;
 606 f)
 607         scissors=--no-scissors ;;
 608 esac
 609 if test "$(cat "$dotest/no_inbody_headers")" = t
 610 then
 611         no_inbody_headers=--no-inbody-headers
 612 else
 613         no_inbody_headers=
 614 fi
 615 if test "$(cat "$dotest/quiet")" = t
 616 then
 617         GIT_QUIET=t
 618 fi
 619 if test "$(cat "$dotest/threeway")" = t
 620 then
 621         threeway=t
 622 fi
 623 git_apply_opt=$(cat "$dotest/apply-opt")
 624 if test "$(cat "$dotest/sign")" = t
 625 then
 626         SIGNOFF=`git var GIT_COMMITTER_IDENT | sed -e '
 627                         s/>.*/>/
 628                         s/^/Signed-off-by: /'
 629                 `
 630 else
 631         SIGNOFF=
 632 fi
 633
 634 last=`cat "$dotest/last"`
 635 this=`cat "$dotest/next"`
 636 if test "$skip" = t
 637 then
 638         this=`expr "$this" + 1`
 639         resume=
 640 fi
 641
 642 while test "$this" -le "$last"
 643 do
 644         msgnum=`printf "%0${prec}d" $this`
 645         next=`expr "$this" + 1`
 646         test -f "$dotest/$msgnum" || {
 647                 resume=
 648                 go_next
 649                 continue
 650         }
 651
 652         # If we are not resuming, parse and extract the patch information
 653         # into separate files:
 654         #  - info records the authorship and title
 655         #  - msg is the rest of commit log message
 656         #  - patch is the patch body.
 657         #
 658         # When we are resuming, these files are either already prepared
 659         # by the user, or the user can tell us to do so by --resolved flag.
 660         case "$resume" in
 661         '')
 662                 git mailinfo $keep $no_inbody_headers $scissors $utf8 "$dotest/msg" "$dotest/patch" \
 663                         <"$dotest/$msgnum" >"$dotest/info" ||
 664                         stop_here $this
 665
 666                 # skip pine's internal folder data
 667                 sane_grep '^Author: Mail System Internal Data$' \
 668                         <"$dotest"/info >/dev/null &&
 669                         go_next && continue
 670
 671                 test -s "$dotest/patch" || {
 672                         eval_gettextln "Patch is empty.  Was it split wrong?
 673 If you would prefer to skip this patch, instead run \"\$cmdline --skip\".
 674 To restore the original branch and stop patching run \"\$cmdline --abort\"."
 675                         stop_here $this
 676                 }
 677                 rm -f "$dotest/original-commit" "$dotest/author-script"
 678                 if test -f "$dotest/rebasing" &&
 679                         commit=$(sed -e 's/^From \([0-9a-f]*\) .*/\1/' \
 680                                 -e q "$dotest/$msgnum") &&
 681                         test "$(git cat-file -t "$commit")" = commit
 682                 then
 683                         git cat-file commit "$commit" |
 684                         sed -e '1,/^$/d' >"$dotest/msg-clean"
 685                         echo "$commit" > "$dotest/original-commit"
 686                         get_author_ident_from_commit "$commit" > "$dotest/author-script"
 687                 else
 688                         {
 689                                 sed -n '/^Subject/ s/Subject: //p' "$dotest/info"
 690                                 echo
 691                                 cat "$dotest/msg"
 692                         } |
 693                         git stripspace > "$dotest/msg-clean"
 694                 fi
 695                 ;;
 696         esac
 697
 698         if test -f "$dotest/author-script"
 699         then
 700                 eval $(cat "$dotest/author-script")
 701         else
 702                 GIT_AUTHOR_NAME="$(sed -n '/^Author/ s/Author: //p' "$dotest/info")"
 703                 GIT_AUTHOR_EMAIL="$(sed -n '/^Email/ s/Email: //p' "$dotest/info")"
 704                 GIT_AUTHOR_DATE="$(sed -n '/^Date/ s/Date: //p' "$dotest/info")"
 705         fi
 706
 707         if test -z "$GIT_AUTHOR_EMAIL"
 708         then
 709                 gettextln "Patch does not have a valid e-mail address."
 710                 stop_here $this
 711         fi
 712
 713         export GIT_AUTHOR_NAME GIT_AUTHOR_EMAIL GIT_AUTHOR_DATE
 714
 715         case "$resume" in
 716         '')
 717             if test '' != "$SIGNOFF"
 718             then
 719                 LAST_SIGNED_OFF_BY=`
 720                     sed -ne '/^Signed-off-by: /p' \
 721                     "$dotest/msg-clean" |
 722                     sed -ne '$p'
 723                 `
 724                 ADD_SIGNOFF=`
 725                     test "$LAST_SIGNED_OFF_BY" = "$SIGNOFF" || {
 726                     test '' = "$LAST_SIGNED_OFF_BY" && echo
 727                     echo "$SIGNOFF"
 728                 }`
 729             else
 730                 ADD_SIGNOFF=
 731             fi
 732             {
 733                 if test -s "$dotest/msg-clean"
 734                 then
 735                         cat "$dotest/msg-clean"
 736                 fi
 737                 if test '' != "$ADD_SIGNOFF"
 738                 then
 739                         echo "$ADD_SIGNOFF"
 740                 fi
 741             } >"$dotest/final-commit"
 742             ;;
 743         *)
 744                 case "$resolved$interactive" in
 745                 tt)
 746                         # This is used only for interactive view option.
 747                         git diff-index --ignore-submodules -p --cached \
 748                                 HEAD -- >"$dotest/patch"
 749                         ;;
 750                 esac
 751         esac
 752
 753         resume=
 754         if test "$interactive" = t
 755         then
 756             test -t 0 ||
 757             die "$(gettext "cannot be interactive without stdin connected to a terminal.")"
 758             action=again
 759             while test "$action" = again
 760             do
 761                 gettextln "Commit Body is:"
 762                 echo "--------------------------"
 763                 cat "$dotest/final-commit"
 764                 echo "--------------------------"
 765                 # TRANSLATORS: Make sure to include [y], [n], [e], [v] and [a]
 766                 # in your translation. The program will only accept English
 767                 # input at this point.
 768                 gettext "Apply? [y]es/[n]o/[e]dit/[v]iew patch/[a]ccept all "
 769                 read reply
 770                 case "$reply" in
 771                 [yY]*) action=yes ;;
 772                 [aA]*) action=yes interactive= ;;
 773                 [nN]*) action=skip ;;
 774                 [eE]*) git_editor "$dotest/final-commit"
 775                        action=again ;;
 776                 [vV]*) action=again
 777                        git_pager "$dotest/patch" ;;
 778                 *)     action=again ;;
 779                 esac
 780             done
 781         else
 782             action=yes
 783         fi
 784
 785         if test -f "$dotest/final-commit"
 786         then
 787                 FIRSTLINE=$(sed 1q "$dotest/final-commit")
 788         else
 789                 FIRSTLINE=""
 790         fi
 791
 792         if test $action = skip
 793         then
 794                 go_next
 795                 continue
 796         fi
 797
 798         if test -x "$GIT_DIR"/hooks/applypatch-msg
 799         then
 800                 "$GIT_DIR"/hooks/applypatch-msg "$dotest/final-commit" ||
 801                 stop_here $this
 802         fi
 803
 804         say "$(eval_gettext "Applying: \$FIRSTLINE")"
 805
 806         case "$resolved" in
 807         '')
 808                 # When we are allowed to fall back to 3-way later, don't give
 809                 # false errors during the initial attempt.
 810                 squelch=
 811                 if test "$threeway" = t
 812                 then
 813                         squelch='>/dev/null 2>&1 '
 814                 fi
 815                 eval "git apply $squelch$git_apply_opt"' --index "$dotest/patch"'
 816                 apply_status=$?
 817                 ;;
 818         t)
 819                 # Resolved means the user did all the hard work, and
 820                 # we do not have to do any patch application.  Just
 821                 # trust what the user has in the index file and the
 822                 # working tree.
 823                 resolved=
 824                 git diff-index --ignore-submodules --quiet --cached HEAD -- && {
 825                         gettextln "No changes - did you forget to use 'git add'?
 826 If there is nothing left to stage, chances are that something else
 827 already introduced the same changes; you might want to skip this patch."
 828                         stop_here_user_resolve $this
 829                 }
 830                 unmerged=$(git ls-files -u)
 831                 if test -n "$unmerged"
 832                 then
 833                         gettextln "You still have unmerged paths in your index
 834 did you forget to use 'git add'?"
 835                         stop_here_user_resolve $this
 836                 fi
 837                 apply_status=0
 838                 git rerere
 839                 ;;
 840         esac
 841
 842         if test $apply_status != 0 && test "$threeway" = t
 843         then
 844                 if (fall_back_3way)
 845                 then
 846                     # Applying the patch to an earlier tree and merging the
 847                     # result may have produced the same tree as ours.
 848                     git diff-index --ignore-submodules --quiet --cached \
 849                                 HEAD -- && {
 850                         say "$(gettext "No changes -- Patch already applied.")"
 851                         go_next
 852                         continue
 853                     }
 854                     # clear apply_status -- we have successfully merged.
 855                     apply_status=0
 856                 fi
 857         fi
 858         if test $apply_status != 0
 859         then
 860                 eval_gettextln 'Patch failed at $msgnum $FIRSTLINE'
 861                 stop_here_user_resolve $this
 862         fi
 863
 864         if test -x "$GIT_DIR"/hooks/pre-applypatch
 865         then
 866                 "$GIT_DIR"/hooks/pre-applypatch || stop_here $this
 867         fi
 868
 869         tree=$(git write-tree) &&
 870         commit=$(
 871                 if test -n "$ignore_date"
 872                 then
 873                         GIT_AUTHOR_DATE=
 874                 fi
 875                 parent=$(git rev-parse --verify -q HEAD) ||
 876                 say >&2 "$(gettext "applying to an empty history")"
 877
 878                 if test -n "$committer_date_is_author_date"
 879                 then
 880                         GIT_COMMITTER_DATE="$GIT_AUTHOR_DATE"
 881                         export GIT_COMMITTER_DATE
 882                 fi &&
 883                 git commit-tree $tree ${parent:+-p} $parent <"$dotest/final-commit"
 884         ) &&
 885         git update-ref -m "$GIT_REFLOG_ACTION: $FIRSTLINE" HEAD $commit $parent ||
 886         stop_here $this
 887
 888         if test -f "$dotest/original-commit"; then
 889                 echo "$(cat "$dotest/original-commit") $commit" >> "$dotest/rewritten"
 890         fi
 891
 892         if test -x "$GIT_DIR"/hooks/post-applypatch
 893         then
 894                 "$GIT_DIR"/hooks/post-applypatch
 895         fi
 896
 897         go_next
 898 done
 899
 900 if test -s "$dotest"/rewritten; then
 901     git notes copy --for-rewrite=rebase < "$dotest"/rewritten
 902     if test -x "$GIT_DIR"/hooks/post-rewrite; then
 903         "$GIT_DIR"/hooks/post-rewrite rebase < "$dotest"/rewritten
 904     fi
 905 fi
 906
 907 rm -fr "$dotest"
 908 git gc --auto