[PATCH] data_smart: Ensure _remove operations on newly set variables are cleared

[Richard Purdie <richard.purdie@linuxfoundation.org>]

We clear append/prepend on newly set variables, we should also clear
remove operations. If we don't do this, there is no way we can actually
delete a remove operation. Bitbake internally uses parsing=True to avoid
these side effects when making its own internal calls.

Also add a testcase to bitbake-selftest to ensure we remain consistent going
forward from here.

Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
---
 lib/bb/data_smart.py | 2 ++
 lib/bb/tests/data.py | 6 ++++++
 2 files changed, 8 insertions(+)

diff --git a/lib/bb/data_smart.py b/lib/bb/data_smart.py
index d6dd698..7dc1c68 100644
--- a/lib/bb/data_smart.py
+++ b/lib/bb/data_smart.py
@@ -546,6 +546,8 @@ class DataSmart(MutableMapping):
                 del self.dict[var]["_append"]
             if "_prepend" in self.dict[var]:
                 del self.dict[var]["_prepend"]
+            if "_remove" in self.dict[var]:
+                del self.dict[var]["_remove"]
             if var in self.overridedata:
                 active = []
                 self.need_overrides()
diff --git a/lib/bb/tests/data.py b/lib/bb/tests/data.py
index fe947f5..a4a9dd3 100644
--- a/lib/bb/tests/data.py
+++ b/lib/bb/tests/data.py
@@ -283,6 +283,12 @@ class TestConcatOverride(unittest.TestCase):
         self.d.setVar("TEST_remove", "val")
         self.assertEqual(self.d.getVar("TEST"), "bar")
 
+    def test_remove_cleared(self):
+        self.d.setVar("TEST", "${VAL} ${BAR}")
+        self.d.setVar("TEST_remove", "val")
+        self.d.setVar("TEST", "${VAL} ${BAR}")
+        self.assertEqual(self.d.getVar("TEST"), "val bar")
+
     # Ensure the value is unchanged if we have an inactive remove override
     # (including that whitespace is preserved)
     def test_remove_inactive_override(self):
-- 
2.7.4