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 m,message-id    pass -m flag to git-mailinfo
  21 keep-cr         pass --keep-cr flag to git-mailsplit for mbox format
  22 no-keep-cr      do not pass --keep-cr flag to git-mailsplit independent of am.keepcr
  23 c,scissors      strip everything before a scissors line
  24 whitespace=     pass it through git-apply
  25 ignore-space-change pass it through git-apply
  26 ignore-whitespace pass it through git-apply
  27 directory=      pass it through git-apply
  28 exclude=        pass it through git-apply
  29 include=        pass it through git-apply
  30 C=              pass it through git-apply
  31 p=              pass it through git-apply
  32 patch-format=   format the patch(es) are in
  33 reject          pass it through git-apply
  34 resolvemsg=     override error message when patch failure occurs
  35 continue        continue applying patches after resolving a conflict
  36 r,resolved      synonyms for --continue
  37 skip            skip the current patch
  38 abort           restore the original branch and abort the patching operation.
  39 committer-date-is-author-date    lie about committer date
  40 ignore-date     use current timestamp for author date
  41 rerere-autoupdate update the index with reused conflict resolution if possible
  42 S,gpg-sign?     GPG-sign commits
  43 rebasing*       (internal use for git-rebase)"
  44
  45 . git-sh-setup
  46 . git-sh-i18n
  47 prefix=$(git rev-parse --show-prefix)
  48 set_reflog_action am
  49 require_work_tree
  50 cd_to_toplevel
  51
  52 git var GIT_COMMITTER_IDENT >/dev/null ||
  53         die "$(gettext "You need to set your committer info first")"
  54
  55 if git rev-parse --verify -q HEAD >/dev/null
  56 then
  57         HAS_HEAD=yes
  58 else
  59         HAS_HEAD=
  60 fi
  61
  62 cmdline="git am"
  63 if test '' != "$interactive"
  64 then
  65         cmdline="$cmdline -i"
  66 fi
  67 if test '' != "$threeway"
  68 then
  69         cmdline="$cmdline -3"
  70 fi
  71
  72 empty_tree=4b825dc642cb6eb9a060e54bf8d69288fbee4904
  73
  74 sq () {
  75         git rev-parse --sq-quote "$@"
  76 }
  77
  78 stop_here () {
  79     echo "$1" >"$dotest/next"
  80     git rev-parse --verify -q HEAD >"$dotest/abort-safety"
  81     exit 1
  82 }
  83
  84 safe_to_abort () {
  85         if test -f "$dotest/dirtyindex"
  86         then
  87                 return 1
  88         fi
  89
  90         if ! test -f "$dotest/abort-safety"
  91         then
  92                 return 0
  93         fi
  94
  95         abort_safety=$(cat "$dotest/abort-safety")
  96         if test "z$(git rev-parse --verify -q HEAD)" = "z$abort_safety"
  97         then
  98                 return 0
  99         fi
 100         gettextln "You seem to have moved HEAD since the last 'am' failure.
 101 Not rewinding to ORIG_HEAD" >&2
 102         return 1
 103 }
 104
 105 stop_here_user_resolve () {
 106     if [ -n "$resolvemsg" ]; then
 107             printf '%s\n' "$resolvemsg"
 108             stop_here $1
 109     fi
 110     eval_gettextln "When you have resolved this problem, run \"\$cmdline --continue\".
 111 If you prefer to skip this patch, run \"\$cmdline --skip\" instead.
 112 To restore the original branch and stop patching, run \"\$cmdline --abort\"."
 113
 114     stop_here $1
 115 }
 116
 117 go_next () {
 118         rm -f "$dotest/$msgnum" "$dotest/msg" "$dotest/msg-clean" \
 119                 "$dotest/patch" "$dotest/info"
 120         echo "$next" >"$dotest/next"
 121         this=$next
 122 }
 123
 124 cannot_fallback () {
 125         echo "$1"
 126         gettextln "Cannot fall back to three-way merge."
 127         exit 1
 128 }
 129
 130 fall_back_3way () {
 131     O_OBJECT=$(cd "$GIT_OBJECT_DIRECTORY" && pwd)
 132
 133     rm -fr "$dotest"/patch-merge-*
 134     mkdir "$dotest/patch-merge-tmp-dir"
 135
 136     # First see if the patch records the index info that we can use.
 137     cmd="git apply $git_apply_opt --build-fake-ancestor" &&
 138     cmd="$cmd "'"$dotest/patch-merge-tmp-index" "$dotest/patch"' &&
 139     eval "$cmd" &&
 140     GIT_INDEX_FILE="$dotest/patch-merge-tmp-index" \
 141     git write-tree >"$dotest/patch-merge-base+" ||
 142     cannot_fallback "$(gettext "Repository lacks necessary blobs to fall back on 3-way merge.")"
 143
 144     say "$(gettext "Using index info to reconstruct a base tree...")"
 145
 146     cmd='GIT_INDEX_FILE="$dotest/patch-merge-tmp-index"'
 147
 148     if test -z "$GIT_QUIET"
 149     then
 150         eval "$cmd git diff-index --cached --diff-filter=AM --name-status HEAD"
 151     fi
 152
 153     cmd="$cmd git apply --cached $git_apply_opt"' <"$dotest/patch"'
 154     if eval "$cmd"
 155     then
 156         mv "$dotest/patch-merge-base+" "$dotest/patch-merge-base"
 157         mv "$dotest/patch-merge-tmp-index" "$dotest/patch-merge-index"
 158     else
 159         cannot_fallback "$(gettext "Did you hand edit your patch?
 160 It does not apply to blobs recorded in its index.")"
 161     fi
 162
 163     test -f "$dotest/patch-merge-index" &&
 164     his_tree=$(GIT_INDEX_FILE="$dotest/patch-merge-index" git write-tree) &&
 165     orig_tree=$(cat "$dotest/patch-merge-base") &&
 166     rm -fr "$dotest"/patch-merge-* || exit 1
 167
 168     say "$(gettext "Falling back to patching base and 3-way merge...")"
 169
 170     # This is not so wrong.  Depending on which base we picked,
 171     # orig_tree may be wildly different from ours, but his_tree
 172     # has the same set of wildly different changes in parts the
 173     # patch did not touch, so recursive ends up canceling them,
 174     # saying that we reverted all those changes.
 175
 176     eval GITHEAD_$his_tree='"$FIRSTLINE"'
 177     export GITHEAD_$his_tree
 178     if test -n "$GIT_QUIET"
 179     then
 180             GIT_MERGE_VERBOSITY=0 && export GIT_MERGE_VERBOSITY
 181     fi
 182     our_tree=$(git rev-parse --verify -q HEAD || echo $empty_tree)
 183     git-merge-recursive $orig_tree -- $our_tree $his_tree || {
 184             git rerere $allow_rerere_autoupdate
 185             die "$(gettext "Failed to merge in the changes.")"
 186     }
 187     unset GITHEAD_$his_tree
 188 }
 189
 190 clean_abort () {
 191         test $# = 0 || echo >&2 "$@"
 192         rm -fr "$dotest"
 193         exit 1
 194 }
 195
 196 patch_format=
 197
 198 check_patch_format () {
 199         # early return if patch_format was set from the command line
 200         if test -n "$patch_format"
 201         then
 202                 return 0
 203         fi
 204
 205         # we default to mbox format if input is from stdin and for
 206         # directories
 207         if test $# = 0 || test "x$1" = "x-" || test -d "$1"
 208         then
 209                 patch_format=mbox
 210                 return 0
 211         fi
 212
 213         # otherwise, check the first few non-blank lines of the first
 214         # patch to try to detect its format
 215         {
 216                 # Start from first line containing non-whitespace
 217                 l1=
 218                 while test -z "$l1"
 219                 do
 220                         read l1 || break
 221                 done
 222                 read l2
 223                 read l3
 224                 case "$l1" in
 225                 "From "* | "From: "*)
 226                         patch_format=mbox
 227                         ;;
 228                 '# This series applies on GIT commit'*)
 229                         patch_format=stgit-series
 230                         ;;
 231                 "# HG changeset patch")
 232                         patch_format=hg
 233                         ;;
 234                 *)
 235                         # if the second line is empty and the third is
 236                         # a From, Author or Date entry, this is very
 237                         # likely an StGIT patch
 238                         case "$l2,$l3" in
 239                         ,"From: "* | ,"Author: "* | ,"Date: "*)
 240                                 patch_format=stgit
 241                                 ;;
 242                         *)
 243                                 ;;
 244                         esac
 245                         ;;
 246                 esac
 247                 if test -z "$patch_format" &&
 248                         test -n "$l1" &&
 249                         test -n "$l2" &&
 250                         test -n "$l3"
 251                 then
 252                         # This begins with three non-empty lines.  Is this a
 253                         # piece of e-mail a-la RFC2822?  Grab all the headers,
 254                         # discarding the indented remainder of folded lines,
 255                         # and see if it looks like that they all begin with the
 256                         # header field names...
 257                         tr -d '\015' <"$1" |
 258                         sed -n -e '/^$/q' -e '/^[       ]/d' -e p |
 259                         sane_egrep -v '^[!-9;-~]+:' >/dev/null ||
 260                         patch_format=mbox
 261                 fi
 262         } < "$1" || clean_abort
 263 }
 264
 265 split_patches () {
 266         case "$patch_format" in
 267         mbox)
 268                 if test t = "$keepcr"
 269                 then
 270                     keep_cr=--keep-cr
 271                 else
 272                     keep_cr=
 273                 fi
 274                 git mailsplit -d"$prec" -o"$dotest" -b $keep_cr -- "$@" > "$dotest/last" ||
 275                 clean_abort
 276                 ;;
 277         stgit-series)
 278                 if test $# -ne 1
 279                 then
 280                         clean_abort "$(gettext "Only one StGIT patch series can be applied at once")"
 281                 fi
 282                 series_dir=$(dirname "$1")
 283                 series_file="$1"
 284                 shift
 285                 {
 286                         set x
 287                         while read filename
 288                         do
 289                                 set "$@" "$series_dir/$filename"
 290                         done
 291                         # remove the safety x
 292                         shift
 293                         # remove the arg coming from the first-line comment
 294                         shift
 295                 } < "$series_file" || clean_abort
 296                 # set the patch format appropriately
 297                 patch_format=stgit
 298                 # now handle the actual StGIT patches
 299                 split_patches "$@"
 300                 ;;
 301         stgit)
 302                 this=0
 303                 for stgit in "$@"
 304                 do
 305                         this=$(expr "$this" + 1)
 306                         msgnum=$(printf "%0${prec}d" $this)
 307                         # Perl version of StGIT parse_patch. The first nonemptyline
 308                         # not starting with Author, From or Date is the
 309                         # subject, and the body starts with the next nonempty
 310                         # line not starting with Author, From or Date
 311                         @@PERL@@ -ne 'BEGIN { $subject = 0 }
 312                                 if ($subject > 1) { print ; }
 313                                 elsif (/^\s+$/) { next ; }
 314                                 elsif (/^Author:/) { s/Author/From/ ; print ;}
 315                                 elsif (/^(From|Date)/) { print ; }
 316                                 elsif ($subject) {
 317                                         $subject = 2 ;
 318                                         print "\n" ;
 319                                         print ;
 320                                 } else {
 321                                         print "Subject: ", $_ ;
 322                                         $subject = 1;
 323                                 }
 324                         ' < "$stgit" > "$dotest/$msgnum" || clean_abort
 325                 done
 326                 echo "$this" > "$dotest/last"
 327                 this=
 328                 msgnum=
 329                 ;;
 330         hg)
 331                 this=0
 332                 for hg in "$@"
 333                 do
 334                         this=$(( $this + 1 ))
 335                         msgnum=$(printf "%0${prec}d" $this)
 336                         # hg stores changeset metadata in #-commented lines preceding
 337                         # the commit message and diff(s). The only metadata we care about
 338                         # are the User and Date (Node ID and Parent are hashes which are
 339                         # only relevant to the hg repository and thus not useful to us)
 340                         # Since we cannot guarantee that the commit message is in
 341                         # git-friendly format, we put no Subject: line and just consume
 342                         # all of the message as the body
 343                         LANG=C LC_ALL=C @@PERL@@ -M'POSIX qw(strftime)' -ne 'BEGIN { $subject = 0 }
 344                                 if ($subject) { print ; }
 345                                 elsif (/^\# User /) { s/\# User/From:/ ; print ; }
 346                                 elsif (/^\# Date /) {
 347                                         my ($hashsign, $str, $time, $tz) = split ;
 348                                         $tz = sprintf "%+05d", (0-$tz)/36;
 349                                         print "Date: " .
 350                                               strftime("%a, %d %b %Y %H:%M:%S ",
 351                                                        localtime($time))
 352                                               . "$tz\n";
 353                                 } elsif (/^\# /) { next ; }
 354                                 else {
 355                                         print "\n", $_ ;
 356                                         $subject = 1;
 357                                 }
 358                         ' <"$hg" >"$dotest/$msgnum" || clean_abort
 359                 done
 360                 echo "$this" >"$dotest/last"
 361                 this=
 362                 msgnum=
 363                 ;;
 364         *)
 365                 if test -n "$patch_format"
 366                 then
 367                         clean_abort "$(eval_gettext "Patch format \$patch_format is not supported.")"
 368                 else
 369                         clean_abort "$(gettext "Patch format detection failed.")"
 370                 fi
 371                 ;;
 372         esac
 373 }
 374
 375 prec=4
 376 dotest="$GIT_DIR/rebase-apply"
 377 sign= utf8=t keep= keepcr= skip= interactive= resolved= rebasing= abort=
 378 messageid= resolvemsg= resume= scissors= no_inbody_headers=
 379 git_apply_opt=
 380 committer_date_is_author_date=
 381 ignore_date=
 382 allow_rerere_autoupdate=
 383 gpg_sign_opt=
 384
 385 if test "$(git config --bool --get am.messageid)" = true
 386 then
 387     messageid=t
 388 fi
 389
 390 if test "$(git config --bool --get am.keepcr)" = true
 391 then
 392     keepcr=t
 393 fi
 394
 395 while test $# != 0
 396 do
 397         case "$1" in
 398         -i|--interactive)
 399                 interactive=t ;;
 400         -b|--binary)
 401                 gettextln >&2 "The -b/--binary option has been a no-op for long time, and
 402 it will be removed. Please do not use it anymore."
 403                 ;;
 404         -3|--3way)
 405                 threeway=t ;;
 406         -s|--signoff)
 407                 sign=t ;;
 408         -u|--utf8)
 409                 utf8=t ;; # this is now default
 410         --no-utf8)
 411                 utf8= ;;
 412         -m|--message-id)
 413                 messageid=t ;;
 414         --no-message-id)
 415                 messageid=f ;;
 416         -k|--keep)
 417                 keep=t ;;
 418         --keep-non-patch)
 419                 keep=b ;;
 420         -c|--scissors)
 421                 scissors=t ;;
 422         --no-scissors)
 423                 scissors=f ;;
 424         -r|--resolved|--continue)
 425                 resolved=t ;;
 426         --skip)
 427                 skip=t ;;
 428         --abort)
 429                 abort=t ;;
 430         --rebasing)
 431                 rebasing=t threeway=t ;;
 432         --resolvemsg=*)
 433                 resolvemsg="${1#--resolvemsg=}" ;;
 434         --whitespace=*|--directory=*|--exclude=*|--include=*)
 435                 git_apply_opt="$git_apply_opt $(sq "$1")" ;;
 436         -C*|-p*)
 437                 git_apply_opt="$git_apply_opt $(sq "$1")" ;;
 438         --patch-format=*)
 439                 patch_format="${1#--patch-format=}" ;;
 440         --reject|--ignore-whitespace|--ignore-space-change)
 441                 git_apply_opt="$git_apply_opt $1" ;;
 442         --committer-date-is-author-date)
 443                 committer_date_is_author_date=t ;;
 444         --ignore-date)
 445                 ignore_date=t ;;
 446         --rerere-autoupdate|--no-rerere-autoupdate)
 447                 allow_rerere_autoupdate="$1" ;;
 448         -q|--quiet)
 449                 GIT_QUIET=t ;;
 450         --keep-cr)
 451                 keepcr=t ;;
 452         --no-keep-cr)
 453                 keepcr=f ;;
 454         --gpg-sign)
 455                 gpg_sign_opt=-S ;;
 456         --gpg-sign=*)
 457                 gpg_sign_opt="-S${1#--gpg-sign=}" ;;
 458         --)
 459                 shift; break ;;
 460         *)
 461                 usage ;;
 462         esac
 463         shift
 464 done
 465
 466 # If the dotest directory exists, but we have finished applying all the
 467 # patches in them, clear it out.
 468 if test -d "$dotest" &&
 469    test -f "$dotest/last" &&
 470    test -f "$dotest/next" &&
 471    last=$(cat "$dotest/last") &&
 472    next=$(cat "$dotest/next") &&
 473    test $# != 0 &&
 474    test "$next" -gt "$last"
 475 then
 476    rm -fr "$dotest"
 477 fi
 478
 479 if test -d "$dotest" && test -f "$dotest/last" && test -f "$dotest/next"
 480 then
 481         case "$#,$skip$resolved$abort" in
 482         0,*t*)
 483                 # Explicit resume command and we do not have file, so
 484                 # we are happy.
 485                 : ;;
 486         0,)
 487                 # No file input but without resume parameters; catch
 488                 # user error to feed us a patch from standard input
 489                 # when there is already $dotest.  This is somewhat
 490                 # unreliable -- stdin could be /dev/null for example
 491                 # and the caller did not intend to feed us a patch but
 492                 # wanted to continue unattended.
 493                 test -t 0
 494                 ;;
 495         *)
 496                 false
 497                 ;;
 498         esac ||
 499         die "$(eval_gettext "previous rebase directory \$dotest still exists but mbox given.")"
 500         resume=yes
 501
 502         case "$skip,$abort" in
 503         t,t)
 504                 die "$(gettext "Please make up your mind. --skip or --abort?")"
 505                 ;;
 506         t,)
 507                 git rerere clear
 508                 head_tree=$(git rev-parse --verify -q HEAD || echo $empty_tree) &&
 509                 git read-tree --reset -u $head_tree $head_tree &&
 510                 index_tree=$(git write-tree) &&
 511                 git read-tree -m -u $index_tree $head_tree
 512                 git read-tree $head_tree
 513                 ;;
 514         ,t)
 515                 if test -f "$dotest/rebasing"
 516                 then
 517                         exec git rebase --abort
 518                 fi
 519                 git rerere clear
 520                 if safe_to_abort
 521                 then
 522                         head_tree=$(git rev-parse --verify -q HEAD || echo $empty_tree) &&
 523                         git read-tree --reset -u $head_tree $head_tree &&
 524                         index_tree=$(git write-tree) &&
 525                         orig_head=$(git rev-parse --verify -q ORIG_HEAD || echo $empty_tree) &&
 526                         git read-tree -m -u $index_tree $orig_head
 527                         if git rev-parse --verify -q ORIG_HEAD >/dev/null 2>&1
 528                         then
 529                                 git reset ORIG_HEAD
 530                         else
 531                                 git read-tree $empty_tree
 532                                 curr_branch=$(git symbolic-ref HEAD 2>/dev/null) &&
 533                                 git update-ref -d $curr_branch
 534                         fi
 535                 fi
 536                 rm -fr "$dotest"
 537                 exit ;;
 538         esac
 539         rm -f "$dotest/dirtyindex"
 540 else
 541         # Possible stray $dotest directory in the independent-run
 542         # case; in the --rebasing case, it is upto the caller
 543         # (git-rebase--am) to take care of stray directories.
 544         if test -d "$dotest" && test -z "$rebasing"
 545         then
 546                 case "$skip,$resolved,$abort" in
 547                 ,,t)
 548                         rm -fr "$dotest"
 549                         exit 0
 550                         ;;
 551                 *)
 552                         die "$(eval_gettext "Stray \$dotest directory found.
 553 Use \"git am --abort\" to remove it.")"
 554                         ;;
 555                 esac
 556         fi
 557
 558         # Make sure we are not given --skip, --continue, or --abort
 559         test "$skip$resolved$abort" = "" ||
 560                 die "$(gettext "Resolve operation not in progress, we are not resuming.")"
 561
 562         # Start afresh.
 563         mkdir -p "$dotest" || exit
 564
 565         if test -n "$prefix" && test $# != 0
 566         then
 567                 first=t
 568                 for arg
 569                 do
 570                         test -n "$first" && {
 571                                 set x
 572                                 first=
 573                         }
 574                         if is_absolute_path "$arg"
 575                         then
 576                                 set "$@" "$arg"
 577                         else
 578                                 set "$@" "$prefix$arg"
 579                         fi
 580                 done
 581                 shift
 582         fi
 583
 584         check_patch_format "$@"
 585
 586         split_patches "$@"
 587
 588         # -i can and must be given when resuming; everything
 589         # else is kept
 590         echo " $git_apply_opt" >"$dotest/apply-opt"
 591         echo "$threeway" >"$dotest/threeway"
 592         echo "$sign" >"$dotest/sign"
 593         echo "$utf8" >"$dotest/utf8"
 594         echo "$keep" >"$dotest/keep"
 595         echo "$messageid" >"$dotest/messageid"
 596         echo "$scissors" >"$dotest/scissors"
 597         echo "$no_inbody_headers" >"$dotest/no_inbody_headers"
 598         echo "$GIT_QUIET" >"$dotest/quiet"
 599         echo 1 >"$dotest/next"
 600         if test -n "$rebasing"
 601         then
 602                 : >"$dotest/rebasing"
 603         else
 604                 : >"$dotest/applying"
 605                 if test -n "$HAS_HEAD"
 606                 then
 607                         git update-ref ORIG_HEAD HEAD
 608                 else
 609                         git update-ref -d ORIG_HEAD >/dev/null 2>&1
 610                 fi
 611         fi
 612 fi
 613
 614 git update-index -q --refresh
 615
 616 case "$resolved" in
 617 '')
 618         case "$HAS_HEAD" in
 619         '')
 620                 files=$(git ls-files) ;;
 621         ?*)
 622                 files=$(git diff-index --cached --name-only HEAD --) ;;
 623         esac || exit
 624         if test "$files"
 625         then
 626                 test -n "$HAS_HEAD" && : >"$dotest/dirtyindex"
 627                 die "$(eval_gettext "Dirty index: cannot apply patches (dirty: \$files)")"
 628         fi
 629 esac
 630
 631 # Now, decide what command line options we will give to the git
 632 # commands we invoke, based on the result of parsing command line
 633 # options and previous invocation state stored in $dotest/ files.
 634
 635 if test "$(cat "$dotest/utf8")" = t
 636 then
 637         utf8=-u
 638 else
 639         utf8=-n
 640 fi
 641 keep=$(cat "$dotest/keep")
 642 case "$keep" in
 643 t)
 644         keep=-k ;;
 645 b)
 646         keep=-b ;;
 647 *)
 648         keep= ;;
 649 esac
 650 case "$(cat "$dotest/messageid")" in
 651 t)
 652         messageid=-m ;;
 653 f)
 654         messageid= ;;
 655 esac
 656 case "$(cat "$dotest/scissors")" in
 657 t)
 658         scissors=--scissors ;;
 659 f)
 660         scissors=--no-scissors ;;
 661 esac
 662 if test "$(cat "$dotest/no_inbody_headers")" = t
 663 then
 664         no_inbody_headers=--no-inbody-headers
 665 else
 666         no_inbody_headers=
 667 fi
 668 if test "$(cat "$dotest/quiet")" = t
 669 then
 670         GIT_QUIET=t
 671 fi
 672 if test "$(cat "$dotest/threeway")" = t
 673 then
 674         threeway=t
 675 fi
 676 git_apply_opt=$(cat "$dotest/apply-opt")
 677 if test "$(cat "$dotest/sign")" = t
 678 then
 679         SIGNOFF=$(git var GIT_COMMITTER_IDENT | sed -e '
 680                         s/>.*/>/
 681                         s/^/Signed-off-by: /'
 682                 )
 683 else
 684         SIGNOFF=
 685 fi
 686
 687 last=$(cat "$dotest/last")
 688 this=$(cat "$dotest/next")
 689 if test "$skip" = t
 690 then
 691         this=$(expr "$this" + 1)
 692         resume=
 693 fi
 694
 695 while test "$this" -le "$last"
 696 do
 697         msgnum=$(printf "%0${prec}d" $this)
 698         next=$(expr "$this" + 1)
 699         test -f "$dotest/$msgnum" || {
 700                 resume=
 701                 go_next
 702                 continue
 703         }
 704
 705         # If we are not resuming, parse and extract the patch information
 706         # into separate files:
 707         #  - info records the authorship and title
 708         #  - msg is the rest of commit log message
 709         #  - patch is the patch body.
 710         #
 711         # When we are resuming, these files are either already prepared
 712         # by the user, or the user can tell us to do so by --continue flag.
 713         case "$resume" in
 714         '')
 715                 if test -f "$dotest/rebasing"
 716                 then
 717                         commit=$(sed -e 's/^From \([0-9a-f]*\) .*/\1/' \
 718                                 -e q "$dotest/$msgnum") &&
 719                         test "$(git cat-file -t "$commit")" = commit ||
 720                                 stop_here $this
 721                         git cat-file commit "$commit" |
 722                         sed -e '1,/^$/d' >"$dotest/msg-clean"
 723                         echo "$commit" >"$dotest/original-commit"
 724                         get_author_ident_from_commit "$commit" >"$dotest/author-script"
 725                         git diff-tree --root --binary --full-index "$commit" >"$dotest/patch"
 726                 else
 727                         git mailinfo $keep $no_inbody_headers $messageid $scissors $utf8 "$dotest/msg" "$dotest/patch" \
 728                                 <"$dotest/$msgnum" >"$dotest/info" ||
 729                                 stop_here $this
 730
 731                         # skip pine's internal folder data
 732                         sane_grep '^Author: Mail System Internal Data$' \
 733                                 <"$dotest"/info >/dev/null &&
 734                                 go_next && continue
 735
 736                         test -s "$dotest/patch" || {
 737                                 eval_gettextln "Patch is empty.  Was it split wrong?
 738 If you would prefer to skip this patch, instead run \"\$cmdline --skip\".
 739 To restore the original branch and stop patching run \"\$cmdline --abort\"."
 740                                 stop_here $this
 741                         }
 742                         rm -f "$dotest/original-commit" "$dotest/author-script"
 743                         {
 744                                 sed -n '/^Subject/ s/Subject: //p' "$dotest/info"
 745                                 echo
 746                                 cat "$dotest/msg"
 747                         } |
 748                         git stripspace > "$dotest/msg-clean"
 749                 fi
 750                 ;;
 751         esac
 752
 753         if test -f "$dotest/author-script"
 754         then
 755                 eval $(cat "$dotest/author-script")
 756         else
 757                 GIT_AUTHOR_NAME="$(sed -n '/^Author/ s/Author: //p' "$dotest/info")"
 758                 GIT_AUTHOR_EMAIL="$(sed -n '/^Email/ s/Email: //p' "$dotest/info")"
 759                 GIT_AUTHOR_DATE="$(sed -n '/^Date/ s/Date: //p' "$dotest/info")"
 760         fi
 761
 762         if test -z "$GIT_AUTHOR_EMAIL"
 763         then
 764                 gettextln "Patch does not have a valid e-mail address."
 765                 stop_here $this
 766         fi
 767
 768         export GIT_AUTHOR_NAME GIT_AUTHOR_EMAIL GIT_AUTHOR_DATE
 769
 770         case "$resume" in
 771         '')
 772             if test '' != "$SIGNOFF"
 773             then
 774                 LAST_SIGNED_OFF_BY=$(
 775                     sed -ne '/^Signed-off-by: /p' \
 776                     "$dotest/msg-clean" |
 777                     sed -ne '$p'
 778                 )
 779                 ADD_SIGNOFF=$(
 780                     test "$LAST_SIGNED_OFF_BY" = "$SIGNOFF" || {
 781                     test '' = "$LAST_SIGNED_OFF_BY" && echo
 782                     echo "$SIGNOFF"
 783                 })
 784             else
 785                 ADD_SIGNOFF=
 786             fi
 787             {
 788                 if test -s "$dotest/msg-clean"
 789                 then
 790                         cat "$dotest/msg-clean"
 791                 fi
 792                 if test '' != "$ADD_SIGNOFF"
 793                 then
 794                         echo "$ADD_SIGNOFF"
 795                 fi
 796             } >"$dotest/final-commit"
 797             ;;
 798         *)
 799                 case "$resolved$interactive" in
 800                 tt)
 801                         # This is used only for interactive view option.
 802                         git diff-index -p --cached HEAD -- >"$dotest/patch"
 803                         ;;
 804                 esac
 805         esac
 806
 807         resume=
 808         if test "$interactive" = t
 809         then
 810             test -t 0 ||
 811             die "$(gettext "cannot be interactive without stdin connected to a terminal.")"
 812             action=again
 813             while test "$action" = again
 814             do
 815                 gettextln "Commit Body is:"
 816                 echo "--------------------------"
 817                 cat "$dotest/final-commit"
 818                 echo "--------------------------"
 819                 # TRANSLATORS: Make sure to include [y], [n], [e], [v] and [a]
 820                 # in your translation. The program will only accept English
 821                 # input at this point.
 822                 gettext "Apply? [y]es/[n]o/[e]dit/[v]iew patch/[a]ccept all "
 823                 read reply
 824                 case "$reply" in
 825                 [yY]*) action=yes ;;
 826                 [aA]*) action=yes interactive= ;;
 827                 [nN]*) action=skip ;;
 828                 [eE]*) git_editor "$dotest/final-commit"
 829                        action=again ;;
 830                 [vV]*) action=again
 831                        git_pager "$dotest/patch" ;;
 832                 *)     action=again ;;
 833                 esac
 834             done
 835         else
 836             action=yes
 837         fi
 838
 839         if test $action = skip
 840         then
 841                 go_next
 842                 continue
 843         fi
 844
 845         if test -x "$GIT_DIR"/hooks/applypatch-msg
 846         then
 847                 "$GIT_DIR"/hooks/applypatch-msg "$dotest/final-commit" ||
 848                 stop_here $this
 849         fi
 850
 851         if test -f "$dotest/final-commit"
 852         then
 853                 FIRSTLINE=$(sed 1q "$dotest/final-commit")
 854         else
 855                 FIRSTLINE=""
 856         fi
 857
 858         say "$(eval_gettext "Applying: \$FIRSTLINE")"
 859
 860         case "$resolved" in
 861         '')
 862                 # When we are allowed to fall back to 3-way later, don't give
 863                 # false errors during the initial attempt.
 864                 squelch=
 865                 if test "$threeway" = t
 866                 then
 867                         squelch='>/dev/null 2>&1 '
 868                 fi
 869                 eval "git apply $squelch$git_apply_opt"' --index "$dotest/patch"'
 870                 apply_status=$?
 871                 ;;
 872         t)
 873                 # Resolved means the user did all the hard work, and
 874                 # we do not have to do any patch application.  Just
 875                 # trust what the user has in the index file and the
 876                 # working tree.
 877                 resolved=
 878                 git diff-index --quiet --cached HEAD -- && {
 879                         gettextln "No changes - did you forget to use 'git add'?
 880 If there is nothing left to stage, chances are that something else
 881 already introduced the same changes; you might want to skip this patch."
 882                         stop_here_user_resolve $this
 883                 }
 884                 unmerged=$(git ls-files -u)
 885                 if test -n "$unmerged"
 886                 then
 887                         gettextln "You still have unmerged paths in your index
 888 did you forget to use 'git add'?"
 889                         stop_here_user_resolve $this
 890                 fi
 891                 apply_status=0
 892                 git rerere
 893                 ;;
 894         esac
 895
 896         if test $apply_status != 0 && test "$threeway" = t
 897         then
 898                 if (fall_back_3way)
 899                 then
 900                     # Applying the patch to an earlier tree and merging the
 901                     # result may have produced the same tree as ours.
 902                     git diff-index --quiet --cached HEAD -- && {
 903                         say "$(gettext "No changes -- Patch already applied.")"
 904                         go_next
 905                         continue
 906                     }
 907                     # clear apply_status -- we have successfully merged.
 908                     apply_status=0
 909                 fi
 910         fi
 911         if test $apply_status != 0
 912         then
 913                 eval_gettextln 'Patch failed at $msgnum $FIRSTLINE'
 914                 if test "$(git config --bool advice.amworkdir)" != false
 915                 then
 916                         eval_gettextln 'The copy of the patch that failed is found in:
 917    $dotest/patch'
 918                 fi
 919                 stop_here_user_resolve $this
 920         fi
 921
 922         if test -x "$GIT_DIR"/hooks/pre-applypatch
 923         then
 924                 "$GIT_DIR"/hooks/pre-applypatch || stop_here $this
 925         fi
 926
 927         tree=$(git write-tree) &&
 928         commit=$(
 929                 if test -n "$ignore_date"
 930                 then
 931                         GIT_AUTHOR_DATE=
 932                 fi
 933                 parent=$(git rev-parse --verify -q HEAD) ||
 934                 say >&2 "$(gettext "applying to an empty history")"
 935
 936                 if test -n "$committer_date_is_author_date"
 937                 then
 938                         GIT_COMMITTER_DATE="$GIT_AUTHOR_DATE"
 939                         export GIT_COMMITTER_DATE
 940                 fi &&
 941                 git commit-tree ${parent:+-p} $parent ${gpg_sign_opt:+"$gpg_sign_opt"} $tree  \
 942                         <"$dotest/final-commit"
 943         ) &&
 944         git update-ref -m "$GIT_REFLOG_ACTION: $FIRSTLINE" HEAD $commit $parent ||
 945         stop_here $this
 946
 947         if test -f "$dotest/original-commit"; then
 948                 echo "$(cat "$dotest/original-commit") $commit" >> "$dotest/rewritten"
 949         fi
 950
 951         if test -x "$GIT_DIR"/hooks/post-applypatch
 952         then
 953                 "$GIT_DIR"/hooks/post-applypatch
 954         fi
 955
 956         go_next
 957 done
 958
 959 if test -s "$dotest"/rewritten; then
 960     git notes copy --for-rewrite=rebase < "$dotest"/rewritten
 961     if test -x "$GIT_DIR"/hooks/post-rewrite; then
 962         "$GIT_DIR"/hooks/post-rewrite rebase < "$dotest"/rewritten
 963     fi
 964 fi
 965
 966 # If am was called with --rebasing (from git-rebase--am), it's up to
 967 # the caller to take care of housekeeping.
 968 if ! test -f "$dotest/rebasing"
 969 then
 970         rm -fr "$dotest"
 971         git gc --auto
 972 fi