rebase -i: remember the settings of -v, -s and -p when interrupted

After interruption, be that an edit, or a conflicting commit, reset
the variables VERBOSE, STRATEGY and PRESERVE_MERGES, so that the
user does not have to respecify them with "rebase --continue".

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

git-rebase--interactive.sh

@@ -23,6 +23,9 @@ REWRITTEN="$DOTEST"/rewritten
 PRESERVE_MERGES=
 STRATEGY=
 VERBOSE=
+test -d "$REWRITTEN" && PRESERVE_MERGES=t
+test -f "$DOTEST"/strategy && STRATEGY="$(cat "$DOTEST"/strategy)"
+test -f "$DOTEST"/verbose && VERBOSE=t
 
 warn () {
 	echo "$*" >&2
@@ -366,6 +369,7 @@ do
 		echo $HEAD > "$DOTEST"/head
 		echo $UPSTREAM > "$DOTEST"/upstream
 		echo $ONTO > "$DOTEST"/onto
+		test -z "$STRATEGY" || echo "$STRATEGY" > "$DOTEST"/strategy
 		test t = "$VERBOSE" && : > "$DOTEST"/verbose
 		if [ t = "$PRESERVE_MERGES" ]
 		then

t/t3404-rebase-interactive.sh

@@ -202,4 +202,14 @@ test_expect_success '--continue tries to commit' '
 	git show HEAD | grep chouette
 '
 
+test_expect_success 'verbose flag is heeded, even after --continue' '
+	git reset --hard HEAD@{1} &&
+	test_tick &&
+	! git rebase -v -i --onto new-branch1 HEAD^ &&
+	echo resolved > file1 &&
+	git add file1 &&
+	git rebase --continue > output &&
+	grep "^ file1 |    2 +-$" output
+'
+
 test_done