bisect: introduce support for --no-checkout option.
[gitweb.git] / git-am.sh
index aa602618e6caedbfdd2d54ad4bb8375356cc55f6..463c741dfc259927b4429f19972ced21d87c215e 100755 (executable)
--- a/git-am.sh
+++ b/git-am.sh
 SUBDIRECTORY_OK=Yes
 OPTIONS_KEEPDASHDASH=
 OPTIONS_SPEC="\
-git am [options] [<mbox>|<Maildir>...]
+git am [options] [(<mbox>|<Maildir>)...]
 git am [options] (--resolved | --skip | --abort)
 --
-d,dotest=       (removed -- do not use)
 i,interactive   run interactively
-b,binary        (historical option -- no-op)
+b,binary*       (historical option -- no-op)
 3,3way          allow fall back on 3way merging if needed
+q,quiet         be quiet
 s,signoff       add a Signed-off-by line to the commit message
 u,utf8          recode into utf8 (default)
 k,keep          pass -k flag to git-mailinfo
+keep-cr         pass --keep-cr flag to git-mailsplit for mbox format
+no-keep-cr      do not pass --keep-cr flag to git-mailsplit independent of am.keepcr
+c,scissors      strip everything before a scissors line
 whitespace=     pass it through git-apply
+ignore-space-change pass it through git-apply
+ignore-whitespace pass it through git-apply
+directory=      pass it through git-apply
 C=              pass it through git-apply
 p=              pass it through git-apply
+patch-format=   format the patch(es) are in
+reject          pass it through git-apply
 resolvemsg=     override error message when patch failure occurs
-r,resolved      to be used after a patch failure
+continue        continue applying patches after resolving a conflict
+r,resolved      synonyms for --continue
 skip            skip the current patch
 abort           restore the original branch and abort the patching operation.
-rebasing        (internal use for git-rebase)"
+committer-date-is-author-date    lie about committer date
+ignore-date     use current timestamp for author date
+rerere-autoupdate update the index with reused conflict resolution if possible
+rebasing*       (internal use for git-rebase)"
 
 . git-sh-setup
+. git-sh-i18n
 prefix=$(git rev-parse --show-prefix)
 set_reflog_action am
 require_work_tree
 cd_to_toplevel
 
 git var GIT_COMMITTER_IDENT >/dev/null ||
-       die "You need to set your committer info first"
+       die "$(gettext "You need to set your committer info first")"
+
+if git rev-parse --verify -q HEAD >/dev/null
+then
+       HAS_HEAD=yes
+else
+       HAS_HEAD=
+fi
+
+cmdline="git am"
+if test '' != "$interactive"
+then
+       cmdline="$cmdline -i"
+fi
+if test '' != "$threeway"
+then
+       cmdline="$cmdline -3"
+fi
+
+sq () {
+       git rev-parse --sq-quote "$@"
+}
 
 stop_here () {
     echo "$1" >"$dotest/next"
+    git rev-parse --verify -q HEAD >"$dotest/abort-safety"
     exit 1
 }
 
+safe_to_abort () {
+       if test -f "$dotest/dirtyindex"
+       then
+               return 1
+       fi
+
+       if ! test -s "$dotest/abort-safety"
+       then
+               return 0
+       fi
+
+       abort_safety=$(cat "$dotest/abort-safety")
+       if test "z$(git rev-parse --verify -q HEAD)" = "z$abort_safety"
+       then
+               return 0
+       fi
+       (
+               gettext "You seem to have moved HEAD since the last 'am' failure.
+Not rewinding to ORIG_HEAD" &&
+               echo
+       ) >&2
+       return 1
+}
+
 stop_here_user_resolve () {
     if [ -n "$resolvemsg" ]; then
            printf '%s\n' "$resolvemsg"
            stop_here $1
     fi
-    cmdline="git am"
-    if test '' != "$interactive"
-    then
-        cmdline="$cmdline -i"
-    fi
-    if test '' != "$threeway"
-    then
-        cmdline="$cmdline -3"
-    fi
-    echo "When you have resolved this problem run \"$cmdline --resolved\"."
-    echo "If you would prefer to skip this patch, instead run \"$cmdline --skip\"."
-    echo "To restore the original branch and stop patching run \"$cmdline --abort\"."
+    eval_gettext "When you have resolved this problem run \"\$cmdline --resolved\".
+If you would prefer to skip this patch, instead run \"\$cmdline --skip\".
+To restore the original branch and stop patching run \"\$cmdline --abort\"."; echo
 
     stop_here $1
 }
@@ -68,7 +118,7 @@ go_next () {
 
 cannot_fallback () {
        echo "$1"
-       echo "Cannot fall back to three-way merge."
+       gettext "Cannot fall back to three-way merge."; echo
        exit 1
 }
 
@@ -83,17 +133,17 @@ fall_back_3way () {
        "$dotest/patch" &&
     GIT_INDEX_FILE="$dotest/patch-merge-tmp-index" \
     git write-tree >"$dotest/patch-merge-base+" ||
-    cannot_fallback "Repository lacks necessary blobs to fall back on 3-way merge."
+    cannot_fallback "$(gettext "Repository lacks necessary blobs to fall back on 3-way merge.")"
 
-    echo Using index info to reconstruct a base tree...
+    say Using index info to reconstruct a base tree...
     if GIT_INDEX_FILE="$dotest/patch-merge-tmp-index" \
        git apply --cached <"$dotest/patch"
     then
        mv "$dotest/patch-merge-base+" "$dotest/patch-merge-base"
        mv "$dotest/patch-merge-tmp-index" "$dotest/patch-merge-index"
     else
-        cannot_fallback "Did you hand edit your patch?
-It does not apply to blobs recorded in its index."
+       cannot_fallback "$(gettext "Did you hand edit your patch?
+It does not apply to blobs recorded in its index.")"
     fi
 
     test -f "$dotest/patch-merge-index" &&
@@ -101,7 +151,7 @@ It does not apply to blobs recorded in its index."
     orig_tree=$(cat "$dotest/patch-merge-base") &&
     rm -fr "$dotest"/patch-merge-* || exit 1
 
-    echo Falling back to patching base and 3-way merge...
+    say "$(gettext "Falling back to patching base and 3-way merge...")"
 
     # This is not so wrong.  Depending on which base we picked,
     # orig_tree may be wildly different from ours, but his_tree
@@ -111,19 +161,176 @@ It does not apply to blobs recorded in its index."
 
     eval GITHEAD_$his_tree='"$FIRSTLINE"'
     export GITHEAD_$his_tree
+    if test -n "$GIT_QUIET"
+    then
+           GIT_MERGE_VERBOSITY=0 && export GIT_MERGE_VERBOSITY
+    fi
     git-merge-recursive $orig_tree -- HEAD $his_tree || {
-           git rerere
+           git rerere $allow_rerere_autoupdate
            echo Failed to merge in the changes.
            exit 1
     }
     unset GITHEAD_$his_tree
 }
 
+clean_abort () {
+       test $# = 0 || echo >&2 "$@"
+       rm -fr "$dotest"
+       exit 1
+}
+
+patch_format=
+
+check_patch_format () {
+       # early return if patch_format was set from the command line
+       if test -n "$patch_format"
+       then
+               return 0
+       fi
+
+       # we default to mbox format if input is from stdin and for
+       # directories
+       if test $# = 0 || test "x$1" = "x-" || test -d "$1"
+       then
+               patch_format=mbox
+               return 0
+       fi
+
+       # otherwise, check the first few lines of the first patch to try
+       # to detect its format
+       {
+               read l1
+               read l2
+               read l3
+               case "$l1" in
+               "From "* | "From: "*)
+                       patch_format=mbox
+                       ;;
+               '# This series applies on GIT commit'*)
+                       patch_format=stgit-series
+                       ;;
+               "# HG changeset patch")
+                       patch_format=hg
+                       ;;
+               *)
+                       # if the second line is empty and the third is
+                       # a From, Author or Date entry, this is very
+                       # likely an StGIT patch
+                       case "$l2,$l3" in
+                       ,"From: "* | ,"Author: "* | ,"Date: "*)
+                               patch_format=stgit
+                               ;;
+                       *)
+                               ;;
+                       esac
+                       ;;
+               esac
+               if test -z "$patch_format" &&
+                       test -n "$l1" &&
+                       test -n "$l2" &&
+                       test -n "$l3"
+               then
+                       # This begins with three non-empty lines.  Is this a
+                       # piece of e-mail a-la RFC2822?  Grab all the headers,
+                       # discarding the indented remainder of folded lines,
+                       # and see if it looks like that they all begin with the
+                       # header field names...
+                       tr -d '\015' <"$1" |
+                       sed -n -e '/^$/q' -e '/^[       ]/d' -e p |
+                       sane_egrep -v '^[!-9;-~]+:' >/dev/null ||
+                       patch_format=mbox
+               fi
+       } < "$1" || clean_abort
+}
+
+split_patches () {
+       case "$patch_format" in
+       mbox)
+               if test -n "$rebasing" || test t = "$keepcr"
+               then
+                   keep_cr=--keep-cr
+               else
+                   keep_cr=
+               fi
+               git mailsplit -d"$prec" -o"$dotest" -b $keep_cr -- "$@" > "$dotest/last" ||
+               clean_abort
+               ;;
+       stgit-series)
+               if test $# -ne 1
+               then
+                       clean_abort "$(gettext "Only one StGIT patch series can be applied at once")"
+               fi
+               series_dir=`dirname "$1"`
+               series_file="$1"
+               shift
+               {
+                       set x
+                       while read filename
+                       do
+                               set "$@" "$series_dir/$filename"
+                       done
+                       # remove the safety x
+                       shift
+                       # remove the arg coming from the first-line comment
+                       shift
+               } < "$series_file" || clean_abort
+               # set the patch format appropriately
+               patch_format=stgit
+               # now handle the actual StGIT patches
+               split_patches "$@"
+               ;;
+       stgit)
+               this=0
+               for stgit in "$@"
+               do
+                       this=`expr "$this" + 1`
+                       msgnum=`printf "%0${prec}d" $this`
+                       # Perl version of StGIT parse_patch. The first nonemptyline
+                       # not starting with Author, From or Date is the
+                       # subject, and the body starts with the next nonempty
+                       # line not starting with Author, From or Date
+                       perl -ne 'BEGIN { $subject = 0 }
+                               if ($subject > 1) { print ; }
+                               elsif (/^\s+$/) { next ; }
+                               elsif (/^Author:/) { print s/Author/From/ ; }
+                               elsif (/^(From|Date)/) { print ; }
+                               elsif ($subject) {
+                                       $subject = 2 ;
+                                       print "\n" ;
+                                       print ;
+                               } else {
+                                       print "Subject: ", $_ ;
+                                       $subject = 1;
+                               }
+                       ' < "$stgit" > "$dotest/$msgnum" || clean_abort
+               done
+               echo "$this" > "$dotest/last"
+               this=
+               msgnum=
+               ;;
+       *)
+               if test -n "$parse_patch" ; then
+                       clean_abort "$(eval_gettext "Patch format \$patch_format is not supported.")"
+               else
+                       clean_abort "$(gettext "Patch format detection failed.")"
+               fi
+               ;;
+       esac
+}
+
 prec=4
 dotest="$GIT_DIR/rebase-apply"
-sign= utf8=t keep= skip= interactive= resolved= rebasing= abort=
-resolvemsg= resume=
+sign= utf8=t keep= keepcr= skip= interactive= resolved= rebasing= abort=
+resolvemsg= resume= scissors= no_inbody_headers=
 git_apply_opt=
+committer_date_is_author_date=
+ignore_date=
+allow_rerere_autoupdate=
+
+if test "$(git config --bool --get am.keepcr)" = true
+then
+    keepcr=t
+fi
 
 while test $# != 0
 do
@@ -142,23 +349,43 @@ do
                utf8= ;;
        -k|--keep)
                keep=t ;;
-       -r|--resolved)
+       -c|--scissors)
+               scissors=t ;;
+       --no-scissors)
+               scissors=f ;;
+       -r|--resolved|--continue)
                resolved=t ;;
        --skip)
                skip=t ;;
        --abort)
                abort=t ;;
        --rebasing)
-               rebasing=t threeway=t keep=t ;;
+               rebasing=t threeway=t keep=t scissors=f no_inbody_headers=t ;;
        -d|--dotest)
-               die "-d option is no longer supported.  Do not use."
+               die "$(gettext "-d option is no longer supported.  Do not use.")"
                ;;
        --resolvemsg)
                shift; resolvemsg=$1 ;;
-       --whitespace)
-               git_apply_opt="$git_apply_opt $1=$2"; shift ;;
+       --whitespace|--directory)
+               git_apply_opt="$git_apply_opt $(sq "$1=$2")"; shift ;;
        -C|-p)
-               git_apply_opt="$git_apply_opt $1$2"; shift ;;
+               git_apply_opt="$git_apply_opt $(sq "$1$2")"; shift ;;
+       --patch-format)
+               shift ; patch_format="$1" ;;
+       --reject|--ignore-whitespace|--ignore-space-change)
+               git_apply_opt="$git_apply_opt $1" ;;
+       --committer-date-is-author-date)
+               committer_date_is_author_date=t ;;
+       --ignore-date)
+               ignore_date=t ;;
+       --rerere-autoupdate|--no-rerere-autoupdate)
+               allow_rerere_autoupdate="$1" ;;
+       -q|--quiet)
+               GIT_QUIET=t ;;
+       --keep-cr)
+               keepcr=t ;;
+       --no-keep-cr)
+               keepcr=f ;;
        --)
                shift; break ;;
        *)
@@ -192,16 +419,19 @@ then
                # unreliable -- stdin could be /dev/null for example
                # and the caller did not intend to feed us a patch but
                # wanted to continue unattended.
-               tty -s
+               test -t 0
                ;;
        *)
                false
                ;;
        esac ||
-       die "previous rebase directory $dotest still exists but mbox given."
+       die "$(eval_gettext "previous rebase directory \$dotest still exists but mbox given.")"
        resume=yes
 
        case "$skip,$abort" in
+       t,t)
+               die "$(gettext "Please make up your mind. --skip or --abort?")"
+               ;;
        t,)
                git rerere clear
                git read-tree --reset -u HEAD HEAD
@@ -210,16 +440,24 @@ then
                git update-ref ORIG_HEAD $orig_head
                ;;
        ,t)
+               if test -f "$dotest/rebasing"
+               then
+                       exec git rebase --abort
+               fi
                git rerere clear
-               git read-tree --reset -u HEAD ORIG_HEAD
-               git reset ORIG_HEAD
+               if safe_to_abort
+               then
+                       git read-tree --reset -u HEAD ORIG_HEAD
+                       git reset ORIG_HEAD
+               fi
                rm -fr "$dotest"
                exit ;;
        esac
+       rm -f "$dotest/dirtyindex"
 else
        # Make sure we are not given --skip, --resolved, nor --abort
        test "$skip$resolved$abort" = "" ||
-               die "Resolve operation not in progress, we are not resuming."
+               die "$(gettext "Resolve operation not in progress, we are not resuming.")"
 
        # Start afresh.
        mkdir -p "$dotest" || exit
@@ -233,43 +471,58 @@ else
                                set x
                                first=
                        }
-                       case "$arg" in
-                       /*)
-                               set "$@" "$arg" ;;
-                       *)
-                               set "$@" "$prefix$arg" ;;
-                       esac
+                       if is_absolute_path "$arg"
+                       then
+                               set "$@" "$arg"
+                       else
+                               set "$@" "$prefix$arg"
+                       fi
                done
                shift
        fi
-       git mailsplit -d"$prec" -o"$dotest" -b -- "$@" > "$dotest/last" ||  {
-               rm -fr "$dotest"
-               exit 1
-       }
 
-       # -s, -u, -k and --whitespace flags are kept for the
-       # resuming session after a patch failure.
-       # -3 and -i can and must be given when resuming.
-       echo " $ws" >"$dotest/whitespace"
+       check_patch_format "$@"
+
+       split_patches "$@"
+
+       # -i can and must be given when resuming; everything
+       # else is kept
+       echo " $git_apply_opt" >"$dotest/apply-opt"
+       echo "$threeway" >"$dotest/threeway"
        echo "$sign" >"$dotest/sign"
        echo "$utf8" >"$dotest/utf8"
        echo "$keep" >"$dotest/keep"
+       echo "$keepcr" >"$dotest/keepcr"
+       echo "$scissors" >"$dotest/scissors"
+       echo "$no_inbody_headers" >"$dotest/no_inbody_headers"
+       echo "$GIT_QUIET" >"$dotest/quiet"
        echo 1 >"$dotest/next"
        if test -n "$rebasing"
        then
                : >"$dotest/rebasing"
        else
                : >"$dotest/applying"
-               git update-ref ORIG_HEAD HEAD
+               if test -n "$HAS_HEAD"
+               then
+                       git update-ref ORIG_HEAD HEAD
+               else
+                       git update-ref -d ORIG_HEAD >/dev/null 2>&1
+               fi
        fi
 fi
 
 case "$resolved" in
 '')
-       files=$(git diff-index --cached --name-only HEAD --) || exit
-       if [ "$files" ]; then
-          echo "Dirty index: cannot apply patches (dirty: $files)" >&2
-          exit 1
+       case "$HAS_HEAD" in
+       '')
+               files=$(git ls-files) ;;
+       ?*)
+               files=$(git diff-index --cached --name-only HEAD --) ;;
+       esac || exit
+       if test "$files"
+       then
+               test -n "$HAS_HEAD" && : >"$dotest/dirtyindex"
+               die "$(eval_gettext "Dirty index: cannot apply patches (dirty: \$files)")"
        fi
 esac
 
@@ -283,7 +536,33 @@ if test "$(cat "$dotest/keep")" = t
 then
        keep=-k
 fi
-ws=`cat "$dotest/whitespace"`
+case "$(cat "$dotest/keepcr")" in
+t)
+       keepcr=--keep-cr ;;
+f)
+       keepcr=--no-keep-cr ;;
+esac
+case "$(cat "$dotest/scissors")" in
+t)
+       scissors=--scissors ;;
+f)
+       scissors=--no-scissors ;;
+esac
+if test "$(cat "$dotest/no_inbody_headers")" = t
+then
+       no_inbody_headers=--no-inbody-headers
+else
+       no_inbody_headers=
+fi
+if test "$(cat "$dotest/quiet")" = t
+then
+       GIT_QUIET=t
+fi
+if test "$(cat "$dotest/threeway")" = t
+then
+       threeway=t
+fi
+git_apply_opt=$(cat "$dotest/apply-opt")
 if test "$(cat "$dotest/sign")" = t
 then
        SIGNOFF=`git var GIT_COMMITTER_IDENT | sed -e '
@@ -302,13 +581,6 @@ then
        resume=
 fi
 
-if test "$this" -gt "$last"
-then
-       echo Nothing to do.
-       rm -fr "$dotest"
-       exit
-fi
-
 while test "$this" -le "$last"
 do
        msgnum=`printf "%0${prec}d" $this`
@@ -329,19 +601,22 @@ do
        # by the user, or the user can tell us to do so by --resolved flag.
        case "$resume" in
        '')
-               git mailinfo $keep $utf8 "$dotest/msg" "$dotest/patch" \
+               git mailinfo $keep $no_inbody_headers $scissors $utf8 "$dotest/msg" "$dotest/patch" \
                        <"$dotest/$msgnum" >"$dotest/info" ||
                        stop_here $this
 
                # skip pine's internal folder data
-               grep '^Author: Mail System Internal Data$' \
+               sane_grep '^Author: Mail System Internal Data$' \
                        <"$dotest"/info >/dev/null &&
                        go_next && continue
 
                test -s "$dotest/patch" || {
-                       echo "Patch is empty.  Was it split wrong?"
+                       eval_gettext "Patch is empty.  Was it split wrong?
+If you would prefer to skip this patch, instead run \"\$cmdline --skip\".
+To restore the original branch and stop patching run \"\$cmdline --abort\"."; echo
                        stop_here $this
                }
+               rm -f "$dotest/original-commit" "$dotest/author-script"
                if test -f "$dotest/rebasing" &&
                        commit=$(sed -e 's/^From \([0-9a-f]*\) .*/\1/' \
                                -e q "$dotest/$msgnum") &&
@@ -349,23 +624,31 @@ do
                then
                        git cat-file commit "$commit" |
                        sed -e '1,/^$/d' >"$dotest/msg-clean"
+                       echo "$commit" > "$dotest/original-commit"
+                       get_author_ident_from_commit "$commit" > "$dotest/author-script"
                else
-                       SUBJECT="$(sed -n '/^Subject/ s/Subject: //p' "$dotest/info")"
-                       case "$keep_subject" in -k)  SUBJECT="[PATCH] $SUBJECT" ;; esac
-
-                       (printf '%s\n\n' "$SUBJECT"; cat "$dotest/msg") |
-                               git stripspace > "$dotest/msg-clean"
+                       {
+                               sed -n '/^Subject/ s/Subject: //p' "$dotest/info"
+                               echo
+                               cat "$dotest/msg"
+                       } |
+                       git stripspace > "$dotest/msg-clean"
                fi
                ;;
        esac
 
-       GIT_AUTHOR_NAME="$(sed -n '/^Author/ s/Author: //p' "$dotest/info")"
-       GIT_AUTHOR_EMAIL="$(sed -n '/^Email/ s/Email: //p' "$dotest/info")"
-       GIT_AUTHOR_DATE="$(sed -n '/^Date/ s/Date: //p' "$dotest/info")"
+       if test -f "$dotest/author-script"
+       then
+               eval $(cat "$dotest/author-script")
+       else
+               GIT_AUTHOR_NAME="$(sed -n '/^Author/ s/Author: //p' "$dotest/info")"
+               GIT_AUTHOR_EMAIL="$(sed -n '/^Email/ s/Email: //p' "$dotest/info")"
+               GIT_AUTHOR_DATE="$(sed -n '/^Date/ s/Date: //p' "$dotest/info")"
+       fi
 
        if test -z "$GIT_AUTHOR_EMAIL"
        then
-               echo "Patch does not have a valid e-mail address."
+               gettext "Patch does not have a valid e-mail address."; echo
                stop_here $this
        fi
 
@@ -412,15 +695,18 @@ do
        if test "$interactive" = t
        then
            test -t 0 ||
-           die "cannot be interactive without stdin connected to a terminal."
+           die "$(gettext "cannot be interactive without stdin connected to a terminal.")"
            action=again
            while test "$action" = again
            do
-               echo "Commit Body is:"
+               gettext "Commit Body is:"; echo
                echo "--------------------------"
                cat "$dotest/final-commit"
                echo "--------------------------"
-               printf "Apply? [y]es/[n]o/[e]dit/[v]iew patch/[a]ccept all "
+               # TRANSLATORS: Make sure to include [y], [n], [e], [v] and [a]
+               # in your translation. The program will only accept English
+               # input at this point.
+               gettext "Apply? [y]es/[n]o/[e]dit/[v]iew patch/[a]ccept all "
                read reply
                case "$reply" in
                [yY]*) action=yes ;;
@@ -429,14 +715,20 @@ do
                [eE]*) git_editor "$dotest/final-commit"
                       action=again ;;
                [vV]*) action=again
-                      LESS=-S ${PAGER:-less} "$dotest/patch" ;;
+                      git_pager "$dotest/patch" ;;
                *)     action=again ;;
                esac
            done
        else
            action=yes
        fi
-       FIRSTLINE=$(sed 1q "$dotest/final-commit")
+
+       if test -f "$dotest/final-commit"
+       then
+               FIRSTLINE=$(sed 1q "$dotest/final-commit")
+       else
+               FIRSTLINE=""
+       fi
 
        if test $action = skip
        then
@@ -450,11 +742,18 @@ do
                stop_here $this
        fi
 
-       printf 'Applying: %s\n' "$FIRSTLINE"
+       say "$(eval_gettext "Applying: \$FIRSTLINE")"
 
        case "$resolved" in
        '')
-               git apply $git_apply_opt --index "$dotest/patch"
+               # When we are allowed to fall back to 3-way later, don't give
+               # false errors during the initial attempt.
+               squelch=
+               if test "$threeway" = t
+               then
+                       squelch='>/dev/null 2>&1 '
+               fi
+               eval "git apply $squelch$git_apply_opt"' --index "$dotest/patch"'
                apply_status=$?
                ;;
        t)
@@ -464,14 +763,16 @@ do
                # working tree.
                resolved=
                git diff-index --quiet --cached HEAD -- && {
-                       echo "No changes - did you forget to use 'git add'?"
+                       gettext "No changes - did you forget to use 'git add'?
+If there is nothing left to stage, chances are that something else
+already introduced the same changes; you might want to skip this patch."; echo
                        stop_here_user_resolve $this
                }
                unmerged=$(git ls-files -u)
                if test -n "$unmerged"
                then
-                       echo "You still have unmerged paths in your index"
-                       echo "did you forget to use 'git add'?"
+                       gettext "You still have unmerged paths in your index
+did you forget to use 'git add'?"; echo
                        stop_here_user_resolve $this
                fi
                apply_status=0
@@ -479,14 +780,14 @@ do
                ;;
        esac
 
-       if test $apply_status = 1 && test "$threeway" = t
+       if test $apply_status != 0 && test "$threeway" = t
        then
                if (fall_back_3way)
                then
                    # Applying the patch to an earlier tree and merging the
                    # result may have produced the same tree as ours.
                    git diff-index --quiet --cached HEAD -- && {
-                       echo No changes -- Patch already applied.
+                       say "$(gettext "No changes -- Patch already applied.")"
                        go_next
                        continue
                    }
@@ -496,7 +797,7 @@ do
        fi
        if test $apply_status != 0
        then
-               echo Patch failed at $msgnum.
+               eval_gettext 'Patch failed at $msgnum $FIRSTLINE'; echo
                stop_here_user_resolve $this
        fi
 
@@ -506,11 +807,28 @@ do
        fi
 
        tree=$(git write-tree) &&
-       parent=$(git rev-parse --verify HEAD) &&
-       commit=$(git commit-tree $tree -p $parent <"$dotest/final-commit") &&
+       commit=$(
+               if test -n "$ignore_date"
+               then
+                       GIT_AUTHOR_DATE=
+               fi
+               parent=$(git rev-parse --verify -q HEAD) ||
+               say >&2 "$(gettext "applying to an empty history")"
+
+               if test -n "$committer_date_is_author_date"
+               then
+                       GIT_COMMITTER_DATE="$GIT_AUTHOR_DATE"
+                       export GIT_COMMITTER_DATE
+               fi &&
+               git commit-tree $tree ${parent:+-p} $parent <"$dotest/final-commit"
+       ) &&
        git update-ref -m "$GIT_REFLOG_ACTION: $FIRSTLINE" HEAD $commit $parent ||
        stop_here $this
 
+       if test -f "$dotest/original-commit"; then
+               echo "$(cat "$dotest/original-commit") $commit" >> "$dotest/rewritten"
+       fi
+
        if test -x "$GIT_DIR"/hooks/post-applypatch
        then
                "$GIT_DIR"/hooks/post-applypatch
@@ -519,6 +837,12 @@ do
        go_next
 done
 
-git gc --auto
+if test -s "$dotest"/rewritten; then
+    git notes copy --for-rewrite=rebase < "$dotest"/rewritten
+    if test -x "$GIT_DIR"/hooks/post-rewrite; then
+       "$GIT_DIR"/hooks/post-rewrite rebase < "$dotest"/rewritten
+    fi
+fi
 
 rm -fr "$dotest"
+git gc --auto