[PATCH 07/31] rebase: stricter check of standalone sub command

[Martin von Zweigbergk <martin.von.zweigbergk@gmail.com>]

The sub commands '--continue', '--skip' or '--abort' may only be used
standalone according to the documentation. Other options following the
sub command are currently not accepted, but options preceeding them
are. For example, 'git rebase --continue -v' is not accepted, while
'git rebase -v --continue' is. Tighten up the check and allow no other
options when one of these sub commands are used.

Only check that it is standalone for non-interactive rebase for
now. Once the command line processing for interactive rebase has been
replaced by the command line processing in git-rebase.sh, this check
will also apply to interactive rebase.

Signed-off-by: Martin von Zweigbergk <martin.von.zweigbergk@gmail.com>
---

Is this too simplistic? Do we forsee that we want to support passing
options when resuming a rebase? Is it better to check for each other
option that it is not passed (i.e. no '-v', no '-s' etc.)?

Might some users be depending on the current behavior, even though it
is undocumented?

 git-rebase.sh              |    4 ++--
 t/t3403-rebase-skip.sh     |    5 +++++
 t/t3407-rebase-abort.sh    |   10 ++++++++++
 t/t3418-rebase-continue.sh |    5 +++++
 4 files changed, 22 insertions(+), 2 deletions(-)

diff --git a/git-rebase.sh b/git-rebase.sh
index 29f1214..1cb0564 100755
--- a/git-rebase.sh
+++ b/git-rebase.sh
@@ -229,6 +229,7 @@ then
 fi
 test -n "$type" && in_progress=t
 
+total_argc=$#
 while test $# != 0
 do
 	case "$1" in
@@ -239,9 +240,8 @@ do
 		OK_TO_SKIP_PRE_REBASE=
 		;;
 	--continue|--skip|--abort)
+		test $total_argc -eq 1 || usage
 		action=${1##--}
-		shift
-		break
 		;;
 	--onto)
 		test 2 -le "$#" || usage
diff --git a/t/t3403-rebase-skip.sh b/t/t3403-rebase-skip.sh
index 64446e3..826500b 100755
--- a/t/t3403-rebase-skip.sh
+++ b/t/t3403-rebase-skip.sh
@@ -35,6 +35,11 @@ test_expect_success 'rebase with git am -3 (default)' '
 	test_must_fail git rebase master
 '
 
+test_expect_success 'rebase --skip can not be used with other options' '
+	test_must_fail git rebase -v --skip &&
+	test_must_fail git rebase --skip -v
+'
+
 test_expect_success 'rebase --skip with am -3' '
 	git rebase --skip
 	'
diff --git a/t/t3407-rebase-abort.sh b/t/t3407-rebase-abort.sh
index e573dc8..a6a6c40 100755
--- a/t/t3407-rebase-abort.sh
+++ b/t/t3407-rebase-abort.sh
@@ -84,6 +84,16 @@ testrebase() {
 		test_cmp reflog_before reflog_after &&
 		rm reflog_before reflog_after
 	'
+
+	test_expect_success 'rebase --abort can not be used with other options' '
+		cd "$work_dir" &&
+		# Clean up the state from the previous one
+		git reset --hard pre-rebase &&
+		test_must_fail git rebase$type master &&
+		test_must_fail git rebase -v --abort &&
+		test_must_fail git rebase --abort -v &&
+		git rebase --abort
+	'
 }
 
 testrebase "" .git/rebase-apply
diff --git a/t/t3418-rebase-continue.sh b/t/t3418-rebase-continue.sh
index 3b0d273..1d90191 100755
--- a/t/t3418-rebase-continue.sh
+++ b/t/t3418-rebase-continue.sh
@@ -40,4 +40,9 @@ test_expect_success 'non-interactive rebase --continue works with touched file'
 	git rebase --continue
 '
 
+test_expect_success 'rebase --continue can not be used with other options' '
+	test_must_fail git rebase -v --continue &&
+	test_must_fail git rebase --continue -v
+'
+
 test_done
-- 
1.7.3.2.864.gbbb96