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