Merge branch 'nm/submodule-update-force'

* nm/submodule-update-force:
  submodule: Add --force option for git submodule update

Conflicts:
	t/t7406-submodule-update.sh

1 files changed, 23 insertions, 0 deletions

diff --git a/t/t7406-submodule-update.sh b/t/t7406-submodule-update.sh
index bf7c788735..4f16fcce2b 100755
--- a/t/t7406-submodule-update.sh
+++ b/t/t7406-submodule-update.sh
@@ -94,6 +94,29 @@ test_expect_success 'submodule update does not fetch already present commits' '
 	! test -s actual.err
 '
 
+test_expect_success 'submodule update should fail due to local changes' '
+	(cd super/submodule &&
+	 git reset --hard HEAD~1 &&
+	 echo "local change" > file
+	) &&
+	(cd super &&
+	 (cd submodule &&
+	  compare_head
+	 ) &&
+	 test_must_fail git submodule update submodule
+	)
+'
+test_expect_success 'submodule update should throw away changes with --force ' '
+	(cd super &&
+	 (cd submodule &&
+	  compare_head
+	 ) &&
+	 git submodule update --force submodule &&
+	 cd submodule &&
+	 ! compare_head
+	)
+'
+
 test_expect_success 'submodule update --rebase staying on master' '
 	(cd super/submodule &&
 	  git checkout master