1 files changed, 17 insertions, 297 deletions

diff --git a/git-bisect.sh b/git-bisect.sh
index 54cbfecc5a..efee12b8b1 100755
--- a/git-bisect.sh
+++ b/git-bisect.sh
@@ -71,122 +71,7 @@ bisect_autostart() {
 }
 
 bisect_start() {
-	#
-	# Check for one bad and then some good revisions.
-	#
-	has_double_dash=0
-	for arg; do
-		case "$arg" in --) has_double_dash=1; break ;; esac
-	done
-	orig_args=$(git rev-parse --sq-quote "$@")
-	bad_seen=0
-	eval=''
-	must_write_terms=0
-	revs=''
-	if test "z$(git rev-parse --is-bare-repository)" != zfalse
-	then
-		mode=--no-checkout
-	else
-		mode=''
-	fi
-	while [ $# -gt 0 ]; do
-		arg="$1"
-		case "$arg" in
-		--)
-			shift
-			break
-		;;
-		--no-checkout)
-			mode=--no-checkout
-			shift ;;
-		--term-good|--term-old)
-			shift
-			must_write_terms=1
-			TERM_GOOD=$1
-			shift ;;
-		--term-good=*|--term-old=*)
-			must_write_terms=1
-			TERM_GOOD=${1#*=}
-			shift ;;
-		--term-bad|--term-new)
-			shift
-			must_write_terms=1
-			TERM_BAD=$1
-			shift ;;
-		--term-bad=*|--term-new=*)
-			must_write_terms=1
-			TERM_BAD=${1#*=}
-			shift ;;
-		--*)
-			die "$(eval_gettext "unrecognised option: '\$arg'")" ;;
-		*)
-			rev=$(git rev-parse -q --verify "$arg^{commit}") || {
-				test $has_double_dash -eq 1 &&
-				die "$(eval_gettext "'\$arg' does not appear to be a valid revision")"
-				break
-			}
-			revs="$revs $rev"
-			shift
-			;;
-		esac
-	done
-
-	for rev in $revs
-	do
-		# The user ran "git bisect start <sha1>
-		# <sha1>", hence did not explicitly specify
-		# the terms, but we are already starting to
-		# set references named with the default terms,
-		# and won't be able to change afterwards.
-		must_write_terms=1
-
-		case $bad_seen in
-		0) state=$TERM_BAD ; bad_seen=1 ;;
-		*) state=$TERM_GOOD ;;
-		esac
-		eval="$eval bisect_write '$state' '$rev' 'nolog' &&"
-	done
-	#
-	# Verify HEAD.
-	#
-	head=$(GIT_DIR="$GIT_DIR" git symbolic-ref -q HEAD) ||
-	head=$(GIT_DIR="$GIT_DIR" git rev-parse --verify HEAD) ||
-	die "$(gettext "Bad HEAD - I need a HEAD")"
-
-	#
-	# Check if we are bisecting.
-	#
-	start_head=''
-	if test -s "$GIT_DIR/BISECT_START"
-	then
-		# Reset to the rev from where we started.
-		start_head=$(cat "$GIT_DIR/BISECT_START")
-		if test "z$mode" != "z--no-checkout"
-		then
-			git checkout "$start_head" -- ||
-			die "$(eval_gettext "Checking out '\$start_head' failed. Try 'git bisect reset <valid-branch>'.")"
-		fi
-	else
-		# Get rev from where we start.
-		case "$head" in
-		refs/heads/*|$_x40)
-			# This error message should only be triggered by
-			# cogito usage, and cogito users should understand
-			# it relates to cg-seek.
-			[ -s "$GIT_DIR/head-name" ] &&
-				die "$(gettext "won't bisect on cg-seek'ed tree")"
-			start_head="${head#refs/heads/}"
-			;;
-		*)
-			die "$(gettext "Bad HEAD - strange symbolic ref")"
-			;;
-		esac
-	fi
-
-	#
-	# Get rid of any old bisect state.
-	#
-	git bisect--helper --bisect-clean-state || exit
+	git bisect--helper --bisect-start $@ || exit
 
 	#
 	# Change state.
@@ -199,44 +84,14 @@ bisect_start() {
 	trap 'exit 255' 1 2 3 15
 
 	#
-	# Write new start state.
-	#
-	echo "$start_head" >"$GIT_DIR/BISECT_START" && {
-		test "z$mode" != "z--no-checkout" ||
-		git update-ref --no-deref BISECT_HEAD "$start_head"
-	} &&
-	git rev-parse --sq-quote "$@" >"$GIT_DIR/BISECT_NAMES" &&
-	eval "$eval true" &&
-	if test $must_write_terms -eq 1
-	then
-		git bisect--helper --write-terms "$TERM_BAD" "$TERM_GOOD" || exit
-	fi &&
-	echo "git bisect start$orig_args" >>"$GIT_DIR/BISECT_LOG" || exit
-	#
 	# Check if we can proceed to the next bisect state.
 	#
+	get_terms
 	bisect_auto_next
 
 	trap '-' 0
 }
 
-bisect_write() {
-	state="$1"
-	rev="$2"
-	nolog="$3"
-	case "$state" in
-		"$TERM_BAD")
-			tag="$state" ;;
-		"$TERM_GOOD"|skip)
-			tag="$state"-"$rev" ;;
-		*)
-			die "$(eval_gettext "Bad bisect_write argument: \$state")" ;;
-	esac
-	git update-ref "refs/bisect/$tag" "$rev" || exit
-	echo "# $state: $(git show-branch $rev)" >>"$GIT_DIR/BISECT_LOG"
-	test -n "$nolog" || echo "git bisect $state $rev" >>"$GIT_DIR/BISECT_LOG"
-}
-
 bisect_skip() {
 	all=''
 	for arg in "$@"
@@ -255,7 +110,8 @@ bisect_skip() {
 bisect_state() {
 	bisect_autostart
 	state=$1
-	check_and_set_terms $state
+	git bisect--helper --check-and-set-terms $state $TERM_GOOD $TERM_BAD || exit
+	get_terms
 	case "$#,$state" in
 	0,*)
 		die "Please call 'bisect_state' with at least one argument." ;;
@@ -263,7 +119,7 @@ bisect_state() {
 		bisected_head=$(bisect_head)
 		rev=$(git rev-parse --verify "$bisected_head") ||
 			die "$(eval_gettext "Bad rev input: \$bisected_head")"
-		bisect_write "$state" "$rev"
+		git bisect--helper --bisect-write "$state" "$rev" "$TERM_GOOD" "$TERM_BAD" || exit
 		git bisect--helper --check-expected-revs "$rev" ;;
 	2,"$TERM_BAD"|*,"$TERM_GOOD"|*,skip)
 		shift
@@ -276,7 +132,7 @@ bisect_state() {
 		done
 		for rev in $hash_list
 		do
-			bisect_write "$state" "$rev"
+			git bisect--helper --bisect-write "$state" "$rev" "$TERM_GOOD" "$TERM_BAD" || exit
 		done
 		git bisect--helper --check-expected-revs $hash_list ;;
 	*,"$TERM_BAD")
@@ -287,59 +143,14 @@ bisect_state() {
 	bisect_auto_next
 }
 
-bisect_next_check() {
-	missing_good= missing_bad=
-	git show-ref -q --verify refs/bisect/$TERM_BAD || missing_bad=t
-	test -n "$(git for-each-ref "refs/bisect/$TERM_GOOD-*")" || missing_good=t
-
-	case "$missing_good,$missing_bad,$1" in
-	,,*)
-		: have both $TERM_GOOD and $TERM_BAD - ok
-		;;
-	*,)
-		# do not have both but not asked to fail - just report.
-		false
-		;;
-	t,,"$TERM_GOOD")
-		# have bad (or new) but not good (or old).  we could bisect although
-		# this is less optimum.
-		eval_gettextln "Warning: bisecting only with a \$TERM_BAD commit." >&2
-		if test -t 0
-		then
-			# TRANSLATORS: Make sure to include [Y] and [n] in your
-			# translation. The program will only accept English input
-			# at this point.
-			gettext "Are you sure [Y/n]? " >&2
-			read yesno
-			case "$yesno" in [Nn]*) exit 1 ;; esac
-		fi
-		: bisect without $TERM_GOOD...
-		;;
-	*)
-		bad_syn=$(bisect_voc bad)
-		good_syn=$(bisect_voc good)
-		if test -s "$GIT_DIR/BISECT_START"
-		then
-
-			eval_gettextln "You need to give me at least one \$bad_syn and one \$good_syn revision.
-(You can use \"git bisect \$bad_syn\" and \"git bisect \$good_syn\" for that.)" >&2
-		else
-			eval_gettextln "You need to start by \"git bisect start\".
-You then need to give me at least one \$good_syn and one \$bad_syn revision.
-(You can use \"git bisect \$bad_syn\" and \"git bisect \$good_syn\" for that.)" >&2
-		fi
-		exit 1 ;;
-	esac
-}
-
 bisect_auto_next() {
-	bisect_next_check && bisect_next || :
+	git bisect--helper --bisect-next-check $TERM_GOOD $TERM_BAD && bisect_next || :
 }
 
 bisect_next() {
 	case "$#" in 0) ;; *) usage ;; esac
 	bisect_autostart
-	bisect_next_check $TERM_GOOD
+	git bisect--helper --bisect-next-check $TERM_GOOD $TERM_BAD $TERM_GOOD|| exit
 
 	# Perform all bisection computation, display and checkout
 	git bisect--helper --next-all $(test -f "$GIT_DIR/BISECT_HEAD" && echo --no-checkout)
@@ -371,7 +182,7 @@ bisect_next() {
 }
 
 bisect_visualize() {
-	bisect_next_check fail
+	git bisect--helper --bisect-next-check $TERM_GOOD $TERM_BAD fail || exit
 
 	if test $# = 0
 	then
@@ -393,35 +204,11 @@ bisect_visualize() {
 	eval '"$@"' --bisect -- $(cat "$GIT_DIR/BISECT_NAMES")
 }
 
-bisect_reset() {
-	test -s "$GIT_DIR/BISECT_START" || {
-		gettextln "We are not bisecting."
-		return
-	}
-	case "$#" in
-	0) branch=$(cat "$GIT_DIR/BISECT_START") ;;
-	1) git rev-parse --quiet --verify "$1^{commit}" >/dev/null || {
-			invalid="$1"
-			die "$(eval_gettext "'\$invalid' is not a valid commit")"
-		}
-		branch="$1" ;;
-	*)
-		usage ;;
-	esac
-
-	if ! test -f "$GIT_DIR/BISECT_HEAD" && ! git checkout "$branch" --
-	then
-		die "$(eval_gettext "Could not check out original HEAD '\$branch'.
-Try 'git bisect reset <commit>'.")"
-	fi
-	git bisect--helper --bisect-clean-state || exit
-}
-
 bisect_replay () {
 	file="$1"
 	test "$#" -eq 1 || die "$(gettext "No logfile given")"
 	test -r "$file" || die "$(eval_gettext "cannot read \$file for replaying")"
-	bisect_reset
+	git bisect--helper --bisect-reset || exit
 	while read git bisect command rev
 	do
 		test "$git $bisect" = "git bisect" || test "$git" = "git-bisect" || continue
@@ -431,15 +218,16 @@ bisect_replay () {
 			command="$bisect"
 		fi
 		get_terms
-		check_and_set_terms "$command"
+		git bisect--helper --check-and-set-terms "$command" "$TERM_GOOD" "$TERM_BAD" || exit
+		get_terms
 		case "$command" in
 		start)
 			cmd="bisect_start $rev"
 			eval "$cmd" ;;
 		"$TERM_GOOD"|"$TERM_BAD"|skip)
-			bisect_write "$command" "$rev" ;;
+			git bisect--helper --bisect-write "$command" "$rev" "$TERM_GOOD" "$TERM_BAD" || exit;;
 		terms)
-			bisect_terms $rev ;;
+			git bisect--helper --bisect-terms $rev || exit;;
 		*)
 			die "$(gettext "?? what are you talking about?")" ;;
 		esac
@@ -448,7 +236,7 @@ bisect_replay () {
 }
 
 bisect_run () {
-	bisect_next_check fail
+	git bisect--helper --bisect-next-check $TERM_GOOD $TERM_BAD fail || exit
 
 	test -n "$*" || die "$(gettext "bisect run failed: no command provided.")"
 
@@ -523,74 +311,6 @@ get_terms () {
 	fi
 }
 
-check_and_set_terms () {
-	cmd="$1"
-	case "$cmd" in
-	skip|start|terms) ;;
-	*)
-		if test -s "$GIT_DIR/BISECT_TERMS" && test "$cmd" != "$TERM_BAD" && test "$cmd" != "$TERM_GOOD"
-		then
-			die "$(eval_gettext "Invalid command: you're currently in a \$TERM_BAD/\$TERM_GOOD bisect.")"
-		fi
-		case "$cmd" in
-		bad|good)
-			if ! test -s "$GIT_DIR/BISECT_TERMS"
-			then
-				TERM_BAD=bad
-				TERM_GOOD=good
-				git bisect--helper --write-terms "$TERM_BAD" "$TERM_GOOD" || exit
-			fi
-			;;
-		new|old)
-			if ! test -s "$GIT_DIR/BISECT_TERMS"
-			then
-				TERM_BAD=new
-				TERM_GOOD=old
-				git bisect--helper --write-terms "$TERM_BAD" "$TERM_GOOD" || exit
-			fi
-			;;
-		esac ;;
-	esac
-}
-
-bisect_voc () {
-	case "$1" in
-	bad) echo "bad|new" ;;
-	good) echo "good|old" ;;
-	esac
-}
-
-bisect_terms () {
-	get_terms
-	if ! test -s "$GIT_DIR/BISECT_TERMS"
-	then
-		die "$(gettext "no terms defined")"
-	fi
-	case "$#" in
-	0)
-		gettextln "Your current terms are $TERM_GOOD for the old state
-and $TERM_BAD for the new state."
-		;;
-	1)
-		arg=$1
-		case "$arg" in
-			--term-good|--term-old)
-				printf '%s\n' "$TERM_GOOD"
-				;;
-			--term-bad|--term-new)
-				printf '%s\n' "$TERM_BAD"
-				;;
-			*)
-				die "$(eval_gettext "invalid argument \$arg for 'git bisect terms'.
-Supported options are: --term-good|--term-old and --term-bad|--term-new.")"
-				;;
-		esac
-		;;
-	*)
-		usage ;;
-	esac
-}
-
 case "$#" in
 0)
 	usage ;;
@@ -613,7 +333,7 @@ case "$#" in
 	visualize|view)
 		bisect_visualize "$@" ;;
 	reset)
-		bisect_reset "$@" ;;
+		git bisect--helper --bisect-reset "$@" ;;
 	replay)
 		bisect_replay "$@" ;;
 	log)
@@ -621,7 +341,7 @@ case "$#" in
 	run)
 		bisect_run "$@" ;;
 	terms)
-		bisect_terms "$@" ;;
+		git bisect--helper --bisect-terms "$@" || exit;;
 	*)
 		usage ;;
 	esac