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