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_STUCKLONG=t
   8 OPTIONS_SPEC="\
   9 git am [options] [(<mbox>|<Maildir>)...]
  10 git am [options] (--continue | --skip | --abort)
  11 --
  12 i,interactive   run interactively
  13 b,binary*       (historical option -- no-op)
  14 3,3way          allow fall back on 3way merging if needed
  15 q,quiet         be quiet
  16 s,signoff       add a Signed-off-by line to the commit message
  17 u,utf8          recode into utf8 (default)
  18 k,keep          pass -k flag to git-mailinfo
  19 keep-non-patch  pass -b flag to git-mailinfo
  20 keep-cr         pass --keep-cr flag to git-mailsplit for mbox format
  21 no-keep-cr      do not pass --keep-cr flag to git-mailsplit independent of am.keepcr
  22 c,scissors      strip everything before a scissors line
  23 whitespace=     pass it through git-apply
  24 ignore-space-change pass it through git-apply
  25 ignore-whitespace pass it through git-apply
  26 directory=      pass it through git-apply
  27 exclude=        pass it through git-apply
  28 include=        pass it through git-apply
  29 C=              pass it through git-apply
  30 p=              pass it through git-apply
  31 patch-format=   format the patch(es) are in
  32 reject          pass it through git-apply
  33 resolvemsg=     override error message when patch failure occurs
  34 continue        continue applying patches after resolving a conflict
  35 r,resolved      synonyms for --continue
  36 skip            skip the current patch
  37 abort           restore the original branch and abort the patching operation.
  38 committer-date-is-author-date    lie about committer date
  39 ignore-date     use current timestamp for author date
  40 rerere-autoupdate update the index with reused conflict resolution if possible
  41 S,gpg-sign?     GPG-sign commits
  42 rebasing*       (internal use for git-rebase)"
  43
  44 . git-sh-setup
  45 . git-sh-i18n
  46 prefix=$(git rev-parse --show-prefix)
  47 set_reflog_action am
  48 require_work_tree
  49 cd_to_toplevel
  50
  51 git var GIT_COMMITTER_IDENT >/dev/null ||
  52         die "$(gettext "You need to set your committer info first")"
  53
  54 if git rev-parse --verify -q HEAD >/dev/null
  55 then
  56         HAS_HEAD=yes
  57 else
  58         HAS_HEAD=
  59 fi
  60
  61 cmdline="git am"
  62 if test '' != "$interactive"
  63 then
  64         cmdline="$cmdline -i"
  65 fi
  66 if test '' != "$threeway"
  67 then
  68         cmdline="$cmdline -3"
  69 fi
  70
  71 empty_tree=4b825dc642cb6eb9a060e54bf8d69288fbee4904
  72
  73 sq () {
  74         git rev-parse --sq-quote "$@"
  75 }
  76
  77 stop_here () {
  78     echo "$1" >"$dotest/next"
  79     git rev-parse --verify -q HEAD >"$dotest/abort-safety"
  80     exit 1
  81 }
  82
  83 safe_to_abort () {
  84         if test -f "$dotest/dirtyindex"
  85         then
  86                 return 1
  87         fi
  88
  89         if ! test -s "$dotest/abort-safety"
  90         then
  91                 return 0
  92         fi
  93
  94         abort_safety=$(cat "$dotest/abort-safety")
  95         if test "z$(git rev-parse --verify -q HEAD)" = "z$abort_safety"
  96         then
  97                 return 0
  98         fi
  99         gettextln "You seem to have moved HEAD since the last 'am' failure.
 100 Not rewinding to ORIG_HEAD" >&2
 101         return 1
 102 }
 103
 104 stop_here_user_resolve () {
 105     if [ -n "$resolvemsg" ]; then
 106             printf '%s\n' "$resolvemsg"
 107             stop_here $1
 108     fi
 109     eval_gettextln "When you have resolved this problem, run \"\$cmdline --continue\".
 110 If you prefer to skip this patch, run \"\$cmdline --skip\" instead.
 111 To restore the original branch and stop patching, run \"\$cmdline --abort\"."
 112
 113     stop_here $1
 114 }
 115
 116 go_next () {
 117         rm -f "$dotest/$msgnum" "$dotest/msg" "$dotest/msg-clean" \
 118                 "$dotest/patch" "$dotest/info"
 119         echo "$next" >"$dotest/next"
 120         this=$next
 121 }
 122
 123 cannot_fallback () {
 124         echo "$1"
 125         gettextln "Cannot fall back to three-way merge."
 126         exit 1
 127 }
 128
 129 fall_back_3way () {
 130     O_OBJECT=$(cd "$GIT_OBJECT_DIRECTORY" && pwd)
 131
 132     rm -fr "$dotest"/patch-merge-*
 133     mkdir "$dotest/patch-merge-tmp-dir"
 134
 135     # First see if the patch records the index info that we can use.
 136     cmd="git apply $git_apply_opt --build-fake-ancestor" &&
 137     cmd="$cmd "'"$dotest/patch-merge-tmp-index" "$dotest/patch"' &&
 138     eval "$cmd" &&
 139     GIT_INDEX_FILE="$dotest/patch-merge-tmp-index" \
 140     git write-tree >"$dotest/patch-merge-base+" ||
 141     cannot_fallback "$(gettext "Repository lacks necessary blobs to fall back on 3-way merge.")"
 142
 143     say "$(gettext "Using index info to reconstruct a base tree...")"
 144
 145     cmd='GIT_INDEX_FILE="$dotest/patch-merge-tmp-index"'
 146
 147     if test -z "$GIT_QUIET"
 148     then
 149         eval "$cmd git diff-index --cached --diff-filter=AM --name-status HEAD"
 150     fi
 151
 152     cmd="$cmd git apply --cached $git_apply_opt"' <"$dotest/patch"'
 153     if eval "$cmd"
 154     then
 155         mv "$dotest/patch-merge-base+" "$dotest/patch-merge-base"
 156         mv "$dotest/patch-merge-tmp-index" "$dotest/patch-merge-index"
 157     else
 158         cannot_fallback "$(gettext "Did you hand edit your patch?
 159 It does not apply to blobs recorded in its index.")"
 160     fi
 161
 162     test -f "$dotest/patch-merge-index" &&
 163     his_tree=$(GIT_INDEX_FILE="$dotest/patch-merge-index" git write-tree) &&
 164     orig_tree=$(cat "$dotest/patch-merge-base") &&
 165     rm -fr "$dotest"/patch-merge-* || exit 1
 166
 167     say "$(gettext "Falling back to patching base and 3-way merge...")"
 168
 169     # This is not so wrong.  Depending on which base we picked,
 170     # orig_tree may be wildly different from ours, but his_tree
 171     # has the same set of wildly different changes in parts the
 172     # patch did not touch, so recursive ends up canceling them,
 173     # saying that we reverted all those changes.
 174
 175     eval GITHEAD_$his_tree='"$FIRSTLINE"'
 176     export GITHEAD_$his_tree
 177     if test -n "$GIT_QUIET"
 178     then
 179             GIT_MERGE_VERBOSITY=0 && export GIT_MERGE_VERBOSITY
 180     fi
 181     our_tree=$(git rev-parse --verify -q HEAD || echo $empty_tree)
 182     git-merge-recursive $orig_tree -- $our_tree $his_tree || {
 183             git rerere $allow_rerere_autoupdate
 184             die "$(gettext "Failed to merge in the changes.")"
 185     }
 186     unset GITHEAD_$his_tree
 187 }
 188
 189 clean_abort () {
 190         test $# = 0 || echo >&2 "$@"
 191         rm -fr "$dotest"
 192         exit 1
 193 }
 194
 195 patch_format=
 196
 197 check_patch_format () {
 198         # early return if patch_format was set from the command line
 199         if test -n "$patch_format"
 200         then
 201                 return 0
 202         fi
 203
 204         # we default to mbox format if input is from stdin and for
 205         # directories
 206         if test $# = 0 || test "x$1" = "x-" || test -d "$1"
 207         then
 208                 patch_format=mbox
 209                 return 0
 210         fi
 211
 212         # otherwise, check the first few non-blank lines of the first
 213         # patch to try to detect its format
 214         {
 215                 # Start from first line containing non-whitespace
 216                 l1=
 217                 while test -z "$l1"
 218                 do
 219                         read l1 || break
 220                 done
 221                 read l2
 222                 read l3
 223                 case "$l1" in
 224                 "From "* | "From: "*)
 225                         patch_format=mbox
 226                         ;;
 227                 '# This series applies on GIT commit'*)
 228                         patch_format=stgit-series
 229                         ;;
 230                 "# HG changeset patch")
 231                         patch_format=hg
 232                         ;;
 233                 *)
 234                         # if the second line is empty and the third is
 235                         # a From, Author or Date entry, this is very
 236                         # likely an StGIT patch
 237                         case "$l2,$l3" in
 238                         ,"From: "* | ,"Author: "* | ,"Date: "*)
 239                                 patch_format=stgit
 240                                 ;;
 241                         *)
 242                                 ;;
 243                         esac
 244                         ;;
 245                 esac
 246                 if test -z "$patch_format" &&
 247                         test -n "$l1" &&
 248                         test -n "$l2" &&
 249                         test -n "$l3"
 250                 then
 251                         # This begins with three non-empty lines.  Is this a
 252                         # piece of e-mail a-la RFC2822?  Grab all the headers,
 253                         # discarding the indented remainder of folded lines,
 254                         # and see if it looks like that they all begin with the
 255                         # header field names...
 256                         tr -d '\015' <"$1" |
 257                         sed -n -e '/^$/q' -e '/^[       ]/d' -e p |
 258                         sane_egrep -v '^[!-9;-~]+:' >/dev/null ||
 259                         patch_format=mbox
 260                 fi
 261         } < "$1" || clean_abort
 262 }
 263
 264 split_patches () {
 265         case "$patch_format" in
 266         mbox)
 267                 if test t = "$keepcr"
 268                 then
 269                     keep_cr=--keep-cr
 270                 else
 271                     keep_cr=
 272                 fi
 273                 git mailsplit -d"$prec" -o"$dotest" -b $keep_cr -- "$@" > "$dotest/last" ||
 274                 clean_abort
 275                 ;;
 276         stgit-series)
 277                 if test $# -ne 1
 278                 then
 279                         clean_abort "$(gettext "Only one StGIT patch series can be applied at once")"
 280                 fi
 281                 series_dir=$(dirname "$1")
 282                 series_file="$1"
 283                 shift
 284                 {
 285                         set x
 286                         while read filename
 287                         do
 288                                 set "$@" "$series_dir/$filename"
 289                         done
 290                         # remove the safety x
 291                         shift
 292                         # remove the arg coming from the first-line comment
 293                         shift
 294                 } < "$series_file" || clean_abort
 295                 # set the patch format appropriately
 296                 patch_format=stgit
 297                 # now handle the actual StGIT patches
 298                 split_patches "$@"
 299                 ;;
 300         stgit)
 301                 this=0
 302                 for stgit in "$@"
 303                 do
 304                         this=$(expr "$this" + 1)
 305                         msgnum=$(printf "%0${prec}d" $this)
 306                         # Perl version of StGIT parse_patch. The first nonemptyline
 307                         # not starting with Author, From or Date is the
 308                         # subject, and the body starts with the next nonempty
 309                         # line not starting with Author, From or Date
 310                         @@PERL@@ -ne 'BEGIN { $subject = 0 }
 311                                 if ($subject > 1) { print ; }
 312                                 elsif (/^\s+$/) { next ; }
 313                                 elsif (/^Author:/) { s/Author/From/ ; print ;}
 314                                 elsif (/^(From|Date)/) { print ; }
 315                                 elsif ($subject) {
 316                                         $subject = 2 ;
 317                                         print "\n" ;
 318                                         print ;
 319                                 } else {
 320                                         print "Subject: ", $_ ;
 321                                         $subject = 1;
 322                                 }
 323                         ' < "$stgit" > "$dotest/$msgnum" || clean_abort
 324                 done
 325                 echo "$this" > "$dotest/last"
 326                 this=
 327                 msgnum=
 328                 ;;
 329         hg)
 330                 this=0
 331                 for hg in "$@"
 332                 do
 333                         this=$(( $this + 1 ))
 334                         msgnum=$(printf "%0${prec}d" $this)
 335                         # hg stores changeset metadata in #-commented lines preceding
 336                         # the commit message and diff(s). The only metadata we care about
 337                         # are the User and Date (Node ID and Parent are hashes which are
 338                         # only relevant to the hg repository and thus not useful to us)
 339                         # Since we cannot guarantee that the commit message is in
 340                         # git-friendly format, we put no Subject: line and just consume
 341                         # all of the message as the body
 342                         LANG=C LC_ALL=C @@PERL@@ -M'POSIX qw(strftime)' -ne 'BEGIN { $subject = 0 }
 343                                 if ($subject) { print ; }
 344                                 elsif (/^\# User /) { s/\# User/From:/ ; print ; }
 345                                 elsif (/^\# Date /) {
 346                                         my ($hashsign, $str, $time, $tz) = split ;
 347                                         $tz = sprintf "%+05d", (0-$tz)/36;
 348                                         print "Date: " .
 349                                               strftime("%a, %d %b %Y %H:%M:%S ",
 350                                                        localtime($time))
 351                                               . "$tz\n";
 352                                 } elsif (/^\# /) { next ; }
 353                                 else {
 354                                         print "\n", $_ ;
 355                                         $subject = 1;
 356                                 }
 357                         ' <"$hg" >"$dotest/$msgnum" || clean_abort
 358                 done
 359                 echo "$this" >"$dotest/last"
 360                 this=
 361                 msgnum=
 362                 ;;
 363         *)
 364                 if test -n "$patch_format"
 365                 then
 366                         clean_abort "$(eval_gettext "Patch format \$patch_format is not supported.")"
 367                 else
 368                         clean_abort "$(gettext "Patch format detection failed.")"
 369                 fi
 370                 ;;
 371         esac
 372 }
 373
 374 prec=4
 375 dotest="$GIT_DIR/rebase-apply"
 376 sign= utf8=t keep= keepcr= skip= interactive= resolved= rebasing= abort=
 377 resolvemsg= resume= scissors= no_inbody_headers=
 378 git_apply_opt=
 379 committer_date_is_author_date=
 380 ignore_date=
 381 allow_rerere_autoupdate=
 382 gpg_sign_opt=
 383
 384 if test "$(git config --bool --get am.keepcr)" = true
 385 then
 386     keepcr=t
 387 fi
 388
 389 while test $# != 0
 390 do
 391         case "$1" in
 392         -i|--interactive)
 393                 interactive=t ;;
 394         -b|--binary)
 395                 gettextln >&2 "The -b/--binary option has been a no-op for long time, and
 396 it will be removed. Please do not use it anymore."
 397                 ;;
 398         -3|--3way)
 399                 threeway=t ;;
 400         -s|--signoff)
 401                 sign=t ;;
 402         -u|--utf8)
 403                 utf8=t ;; # this is now default
 404         --no-utf8)
 405                 utf8= ;;
 406         -k|--keep)
 407                 keep=t ;;
 408         --keep-non-patch)
 409                 keep=b ;;
 410         -c|--scissors)
 411                 scissors=t ;;
 412         --no-scissors)
 413                 scissors=f ;;
 414         -r|--resolved|--continue)
 415                 resolved=t ;;
 416         --skip)
 417                 skip=t ;;
 418         --abort)
 419                 abort=t ;;
 420         --rebasing)
 421                 rebasing=t threeway=t ;;
 422         --resolvemsg=*)
 423                 resolvemsg="${1#--resolvemsg=}" ;;
 424         --whitespace=*|--directory=*|--exclude=*|--include=*)
 425                 git_apply_opt="$git_apply_opt $(sq "$1")" ;;
 426         -C*|-p*)
 427                 git_apply_opt="$git_apply_opt $(sq "$1")" ;;
 428         --patch-format=*)
 429                 patch_format="${1#--patch-format=}" ;;
 430         --reject|--ignore-whitespace|--ignore-space-change)
 431                 git_apply_opt="$git_apply_opt $1" ;;
 432         --committer-date-is-author-date)
 433                 committer_date_is_author_date=t ;;
 434         --ignore-date)
 435                 ignore_date=t ;;
 436         --rerere-autoupdate|--no-rerere-autoupdate)
 437                 allow_rerere_autoupdate="$1" ;;
 438         -q|--quiet)
 439                 GIT_QUIET=t ;;
 440         --keep-cr)
 441                 keepcr=t ;;
 442         --no-keep-cr)
 443                 keepcr=f ;;
 444         --gpg-sign)
 445                 gpg_sign_opt=-S ;;
 446         --gpg-sign=*)
 447                 gpg_sign_opt="-S${1#--gpg-sign=}" ;;
 448         --)
 449                 shift; break ;;
 450         *)
 451                 usage ;;
 452         esac
 453         shift
 454 done
 455
 456 # If the dotest directory exists, but we have finished applying all the
 457 # patches in them, clear it out.
 458 if test -d "$dotest" &&
 459    test -f "$dotest/last" &&
 460    test -f "$dotest/next" &&
 461    last=$(cat "$dotest/last") &&
 462    next=$(cat "$dotest/next") &&
 463    test $# != 0 &&
 464    test "$next" -gt "$last"
 465 then
 466    rm -fr "$dotest"
 467 fi
 468
 469 if test -d "$dotest" && test -f "$dotest/last" && test -f "$dotest/next"
 470 then
 471         case "$#,$skip$resolved$abort" in
 472         0,*t*)
 473                 # Explicit resume command and we do not have file, so
 474                 # we are happy.
 475                 : ;;
 476         0,)
 477                 # No file input but without resume parameters; catch
 478                 # user error to feed us a patch from standard input
 479                 # when there is already $dotest.  This is somewhat
 480                 # unreliable -- stdin could be /dev/null for example
 481                 # and the caller did not intend to feed us a patch but
 482                 # wanted to continue unattended.
 483                 test -t 0
 484                 ;;
 485         *)
 486                 false
 487                 ;;
 488         esac ||
 489         die "$(eval_gettext "previous rebase directory \$dotest still exists but mbox given.")"
 490         resume=yes
 491
 492         case "$skip,$abort" in
 493         t,t)
 494                 die "$(gettext "Please make up your mind. --skip or --abort?")"
 495                 ;;
 496         t,)
 497                 git rerere clear
 498                 head_tree=$(git rev-parse --verify -q HEAD || echo $empty_tree) &&
 499                 git read-tree --reset -u $head_tree $head_tree &&
 500                 index_tree=$(git write-tree) &&
 501                 git read-tree -m -u $index_tree $head_tree
 502                 orig_head=$(cat "$GIT_DIR/ORIG_HEAD")
 503                 git reset HEAD
 504                 git update-ref ORIG_HEAD $orig_head
 505                 ;;
 506         ,t)
 507                 if test -f "$dotest/rebasing"
 508                 then
 509                         exec git rebase --abort
 510                 fi
 511                 git rerere clear
 512                 if safe_to_abort
 513                 then
 514                         git read-tree --reset -u HEAD ORIG_HEAD
 515                         git reset ORIG_HEAD
 516                 fi
 517                 rm -fr "$dotest"
 518                 exit ;;
 519         esac
 520         rm -f "$dotest/dirtyindex"
 521 else
 522         # Possible stray $dotest directory in the independent-run
 523         # case; in the --rebasing case, it is upto the caller
 524         # (git-rebase--am) to take care of stray directories.
 525         if test -d "$dotest" && test -z "$rebasing"
 526         then
 527                 case "$skip,$resolved,$abort" in
 528                 ,,t)
 529                         rm -fr "$dotest"
 530                         exit 0
 531                         ;;
 532                 *)
 533                         die "$(eval_gettext "Stray \$dotest directory found.
 534 Use \"git am --abort\" to remove it.")"
 535                         ;;
 536                 esac
 537         fi
 538
 539         # Make sure we are not given --skip, --continue, or --abort
 540         test "$skip$resolved$abort" = "" ||
 541                 die "$(gettext "Resolve operation not in progress, we are not resuming.")"
 542
 543         # Start afresh.
 544         mkdir -p "$dotest" || exit
 545
 546         if test -n "$prefix" && test $# != 0
 547         then
 548                 first=t
 549                 for arg
 550                 do
 551                         test -n "$first" && {
 552                                 set x
 553                                 first=
 554                         }
 555                         if is_absolute_path "$arg"
 556                         then
 557                                 set "$@" "$arg"
 558                         else
 559                                 set "$@" "$prefix$arg"
 560                         fi
 561                 done
 562                 shift
 563         fi
 564
 565         check_patch_format "$@"
 566
 567         split_patches "$@"
 568
 569         # -i can and must be given when resuming; everything
 570         # else is kept
 571         echo " $git_apply_opt" >"$dotest/apply-opt"
 572         echo "$threeway" >"$dotest/threeway"
 573         echo "$sign" >"$dotest/sign"
 574         echo "$utf8" >"$dotest/utf8"
 575         echo "$keep" >"$dotest/keep"
 576         echo "$scissors" >"$dotest/scissors"
 577         echo "$no_inbody_headers" >"$dotest/no_inbody_headers"
 578         echo "$GIT_QUIET" >"$dotest/quiet"
 579         echo 1 >"$dotest/next"
 580         if test -n "$rebasing"
 581         then
 582                 : >"$dotest/rebasing"
 583         else
 584                 : >"$dotest/applying"
 585                 if test -n "$HAS_HEAD"
 586                 then
 587                         git update-ref ORIG_HEAD HEAD
 588                 else
 589                         git update-ref -d ORIG_HEAD >/dev/null 2>&1
 590                 fi
 591         fi
 592 fi
 593
 594 git update-index -q --refresh
 595
 596 case "$resolved" in
 597 '')
 598         case "$HAS_HEAD" in
 599         '')
 600                 files=$(git ls-files) ;;
 601         ?*)
 602                 files=$(git diff-index --cached --name-only HEAD --) ;;
 603         esac || exit
 604         if test "$files"
 605         then
 606                 test -n "$HAS_HEAD" && : >"$dotest/dirtyindex"
 607                 die "$(eval_gettext "Dirty index: cannot apply patches (dirty: \$files)")"
 608         fi
 609 esac
 610
 611 # Now, decide what command line options we will give to the git
 612 # commands we invoke, based on the result of parsing command line
 613 # options and previous invocation state stored in $dotest/ files.
 614
 615 if test "$(cat "$dotest/utf8")" = t
 616 then
 617         utf8=-u
 618 else
 619         utf8=-n
 620 fi
 621 keep=$(cat "$dotest/keep")
 622 case "$keep" in
 623 t)
 624         keep=-k ;;
 625 b)
 626         keep=-b ;;
 627 *)
 628         keep= ;;
 629 esac
 630 case "$(cat "$dotest/scissors")" in
 631 t)
 632         scissors=--scissors ;;
 633 f)
 634         scissors=--no-scissors ;;
 635 esac
 636 if test "$(cat "$dotest/no_inbody_headers")" = t
 637 then
 638         no_inbody_headers=--no-inbody-headers
 639 else
 640         no_inbody_headers=
 641 fi
 642 if test "$(cat "$dotest/quiet")" = t
 643 then
 644         GIT_QUIET=t
 645 fi
 646 if test "$(cat "$dotest/threeway")" = t
 647 then
 648         threeway=t
 649 fi
 650 git_apply_opt=$(cat "$dotest/apply-opt")
 651 if test "$(cat "$dotest/sign")" = t
 652 then
 653         SIGNOFF=$(git var GIT_COMMITTER_IDENT | sed -e '
 654                         s/>.*/>/
 655                         s/^/Signed-off-by: /'
 656                 )
 657 else
 658         SIGNOFF=
 659 fi
 660
 661 last=$(cat "$dotest/last")
 662 this=$(cat "$dotest/next")
 663 if test "$skip" = t
 664 then
 665         this=$(expr "$this" + 1)
 666         resume=
 667 fi
 668
 669 while test "$this" -le "$last"
 670 do
 671         msgnum=$(printf "%0${prec}d" $this)
 672         next=$(expr "$this" + 1)
 673         test -f "$dotest/$msgnum" || {
 674                 resume=
 675                 go_next
 676                 continue
 677         }
 678
 679         # If we are not resuming, parse and extract the patch information
 680         # into separate files:
 681         #  - info records the authorship and title
 682         #  - msg is the rest of commit log message
 683         #  - patch is the patch body.
 684         #
 685         # When we are resuming, these files are either already prepared
 686         # by the user, or the user can tell us to do so by --continue flag.
 687         case "$resume" in
 688         '')
 689                 if test -f "$dotest/rebasing"
 690                 then
 691                         commit=$(sed -e 's/^From \([0-9a-f]*\) .*/\1/' \
 692                                 -e q "$dotest/$msgnum") &&
 693                         test "$(git cat-file -t "$commit")" = commit ||
 694                                 stop_here $this
 695                         git cat-file commit "$commit" |
 696                         sed -e '1,/^$/d' >"$dotest/msg-clean"
 697                         echo "$commit" >"$dotest/original-commit"
 698                         get_author_ident_from_commit "$commit" >"$dotest/author-script"
 699                         git diff-tree --root --binary --full-index "$commit" >"$dotest/patch"
 700                 else
 701                         git mailinfo $keep $no_inbody_headers $scissors $utf8 "$dotest/msg" "$dotest/patch" \
 702                                 <"$dotest/$msgnum" >"$dotest/info" ||
 703                                 stop_here $this
 704
 705                         # skip pine's internal folder data
 706                         sane_grep '^Author: Mail System Internal Data$' \
 707                                 <"$dotest"/info >/dev/null &&
 708                                 go_next && continue
 709
 710                         test -s "$dotest/patch" || {
 711                                 eval_gettextln "Patch is empty.  Was it split wrong?
 712 If you would prefer to skip this patch, instead run \"\$cmdline --skip\".
 713 To restore the original branch and stop patching run \"\$cmdline --abort\"."
 714                                 stop_here $this
 715                         }
 716                         rm -f "$dotest/original-commit" "$dotest/author-script"
 717                         {
 718                                 sed -n '/^Subject/ s/Subject: //p' "$dotest/info"
 719                                 echo
 720                                 cat "$dotest/msg"
 721                         } |
 722                         git stripspace > "$dotest/msg-clean"
 723                 fi
 724                 ;;
 725         esac
 726
 727         if test -f "$dotest/author-script"
 728         then
 729                 eval $(cat "$dotest/author-script")
 730         else
 731                 GIT_AUTHOR_NAME="$(sed -n '/^Author/ s/Author: //p' "$dotest/info")"
 732                 GIT_AUTHOR_EMAIL="$(sed -n '/^Email/ s/Email: //p' "$dotest/info")"
 733                 GIT_AUTHOR_DATE="$(sed -n '/^Date/ s/Date: //p' "$dotest/info")"
 734         fi
 735
 736         if test -z "$GIT_AUTHOR_EMAIL"
 737         then
 738                 gettextln "Patch does not have a valid e-mail address."
 739                 stop_here $this
 740         fi
 741
 742         export GIT_AUTHOR_NAME GIT_AUTHOR_EMAIL GIT_AUTHOR_DATE
 743
 744         case "$resume" in
 745         '')
 746             if test '' != "$SIGNOFF"
 747             then
 748                 LAST_SIGNED_OFF_BY=$(
 749                     sed -ne '/^Signed-off-by: /p' \
 750                     "$dotest/msg-clean" |
 751                     sed -ne '$p'
 752                 )
 753                 ADD_SIGNOFF=$(
 754                     test "$LAST_SIGNED_OFF_BY" = "$SIGNOFF" || {
 755                     test '' = "$LAST_SIGNED_OFF_BY" && echo
 756                     echo "$SIGNOFF"
 757                 })
 758             else
 759                 ADD_SIGNOFF=
 760             fi
 761             {
 762                 if test -s "$dotest/msg-clean"
 763                 then
 764                         cat "$dotest/msg-clean"
 765                 fi
 766                 if test '' != "$ADD_SIGNOFF"
 767                 then
 768                         echo "$ADD_SIGNOFF"
 769                 fi
 770             } >"$dotest/final-commit"
 771             ;;
 772         *)
 773                 case "$resolved$interactive" in
 774                 tt)
 775                         # This is used only for interactive view option.
 776                         git diff-index -p --cached HEAD -- >"$dotest/patch"
 777                         ;;
 778                 esac
 779         esac
 780
 781         resume=
 782         if test "$interactive" = t
 783         then
 784             test -t 0 ||
 785             die "$(gettext "cannot be interactive without stdin connected to a terminal.")"
 786             action=again
 787             while test "$action" = again
 788             do
 789                 gettextln "Commit Body is:"
 790                 echo "--------------------------"
 791                 cat "$dotest/final-commit"
 792                 echo "--------------------------"
 793                 # TRANSLATORS: Make sure to include [y], [n], [e], [v] and [a]
 794                 # in your translation. The program will only accept English
 795                 # input at this point.
 796                 gettext "Apply? [y]es/[n]o/[e]dit/[v]iew patch/[a]ccept all "
 797                 read reply
 798                 case "$reply" in
 799                 [yY]*) action=yes ;;
 800                 [aA]*) action=yes interactive= ;;
 801                 [nN]*) action=skip ;;
 802                 [eE]*) git_editor "$dotest/final-commit"
 803                        action=again ;;
 804                 [vV]*) action=again
 805                        git_pager "$dotest/patch" ;;
 806                 *)     action=again ;;
 807                 esac
 808             done
 809         else
 810             action=yes
 811         fi
 812
 813         if test $action = skip
 814         then
 815                 go_next
 816                 continue
 817         fi
 818
 819         if test -x "$GIT_DIR"/hooks/applypatch-msg
 820         then
 821                 "$GIT_DIR"/hooks/applypatch-msg "$dotest/final-commit" ||
 822                 stop_here $this
 823         fi
 824
 825         if test -f "$dotest/final-commit"
 826         then
 827                 FIRSTLINE=$(sed 1q "$dotest/final-commit")
 828         else
 829                 FIRSTLINE=""
 830         fi
 831
 832         say "$(eval_gettext "Applying: \$FIRSTLINE")"
 833
 834         case "$resolved" in
 835         '')
 836                 # When we are allowed to fall back to 3-way later, don't give
 837                 # false errors during the initial attempt.
 838                 squelch=
 839                 if test "$threeway" = t
 840                 then
 841                         squelch='>/dev/null 2>&1 '
 842                 fi
 843                 eval "git apply $squelch$git_apply_opt"' --index "$dotest/patch"'
 844                 apply_status=$?
 845                 ;;
 846         t)
 847                 # Resolved means the user did all the hard work, and
 848                 # we do not have to do any patch application.  Just
 849                 # trust what the user has in the index file and the
 850                 # working tree.
 851                 resolved=
 852                 git diff-index --quiet --cached HEAD -- && {
 853                         gettextln "No changes - did you forget to use 'git add'?
 854 If there is nothing left to stage, chances are that something else
 855 already introduced the same changes; you might want to skip this patch."
 856                         stop_here_user_resolve $this
 857                 }
 858                 unmerged=$(git ls-files -u)
 859                 if test -n "$unmerged"
 860                 then
 861                         gettextln "You still have unmerged paths in your index
 862 did you forget to use 'git add'?"
 863                         stop_here_user_resolve $this
 864                 fi
 865                 apply_status=0
 866                 git rerere
 867                 ;;
 868         esac
 869
 870         if test $apply_status != 0 && test "$threeway" = t
 871         then
 872                 if (fall_back_3way)
 873                 then
 874                     # Applying the patch to an earlier tree and merging the
 875                     # result may have produced the same tree as ours.
 876                     git diff-index --quiet --cached HEAD -- && {
 877                         say "$(gettext "No changes -- Patch already applied.")"
 878                         go_next
 879                         continue
 880                     }
 881                     # clear apply_status -- we have successfully merged.
 882                     apply_status=0
 883                 fi
 884         fi
 885         if test $apply_status != 0
 886         then
 887                 eval_gettextln 'Patch failed at $msgnum $FIRSTLINE'
 888                 if test "$(git config --bool advice.amworkdir)" != false
 889                 then
 890                         eval_gettextln 'The copy of the patch that failed is found in:
 891    $dotest/patch'
 892                 fi
 893                 stop_here_user_resolve $this
 894         fi
 895
 896         if test -x "$GIT_DIR"/hooks/pre-applypatch
 897         then
 898                 "$GIT_DIR"/hooks/pre-applypatch || stop_here $this
 899         fi
 900
 901         tree=$(git write-tree) &&
 902         commit=$(
 903                 if test -n "$ignore_date"
 904                 then
 905                         GIT_AUTHOR_DATE=
 906                 fi
 907                 parent=$(git rev-parse --verify -q HEAD) ||
 908                 say >&2 "$(gettext "applying to an empty history")"
 909
 910                 if test -n "$committer_date_is_author_date"
 911                 then
 912                         GIT_COMMITTER_DATE="$GIT_AUTHOR_DATE"
 913                         export GIT_COMMITTER_DATE
 914                 fi &&
 915                 git commit-tree ${parent:+-p} $parent ${gpg_sign_opt:+"$gpg_sign_opt"} $tree  \
 916                         <"$dotest/final-commit"
 917         ) &&
 918         git update-ref -m "$GIT_REFLOG_ACTION: $FIRSTLINE" HEAD $commit $parent ||
 919         stop_here $this
 920
 921         if test -f "$dotest/original-commit"; then
 922                 echo "$(cat "$dotest/original-commit") $commit" >> "$dotest/rewritten"
 923         fi
 924
 925         if test -x "$GIT_DIR"/hooks/post-applypatch
 926         then
 927                 "$GIT_DIR"/hooks/post-applypatch
 928         fi
 929
 930         go_next
 931 done
 932
 933 if test -s "$dotest"/rewritten; then
 934     git notes copy --for-rewrite=rebase < "$dotest"/rewritten
 935     if test -x "$GIT_DIR"/hooks/post-rewrite; then
 936         "$GIT_DIR"/hooks/post-rewrite rebase < "$dotest"/rewritten
 937     fi
 938 fi
 939
 940 # If am was called with --rebasing (from git-rebase--am), it's up to
 941 # the caller to take care of housekeeping.
 942 if ! test -f "$dotest/rebasing"
 943 then
 944         rm -fr "$dotest"
 945         git gc --auto
 946 fi