filter.py: don't recurse when staging dependenciesdoraskayo/filter-indirect-deps-fix-1.2

Also bump the element's version so cached artifacts would be
invalidated.

Fixes #883

(cherry picked from commit 03111d39e093b11ffc6589071f2f5040d5f61ab4)

4 files changed, 43 insertions, 2 deletions

diff --git a/buildstream/plugins/elements/filter.py b/buildstream/plugins/elements/filter.py
index 22fddd14f..b2c292261 100644
--- a/buildstream/plugins/elements/filter.py
+++ b/buildstream/plugins/elements/filter.py
@@ -47,7 +47,9 @@ from buildstream import Element, ElementError, Scope
 class FilterElement(Element):
     # pylint: disable=attribute-defined-outside-init
 
-    # The filter element's output is it's dependencies, so
+    BST_ARTIFACT_VERSION = 1
+
+    # The filter element's output is its dependencies, so
     # we must rebuild if the dependencies change even when
     # not in strict build plans.
     BST_STRICT_REBUILD = True
@@ -102,7 +104,7 @@ class FilterElement(Element):
 
     def assemble(self, sandbox):
         with self.timed_activity("Staging artifact", silent_nested=True):
-            for dep in self.dependencies(Scope.BUILD):
+            for dep in self.dependencies(Scope.BUILD, recurse=False):
                 dep.stage_artifact(sandbox, include=self.include,
                                    exclude=self.exclude, orphans=self.include_orphans)
         return ""
diff --git a/tests/plugins/filter.py b/tests/plugins/filter.py
index 559815a8b..982b6d2c2 100644
--- a/tests/plugins/filter.py
+++ b/tests/plugins/filter.py
@@ -452,3 +452,23 @@ def test_filter_track_multi_exclude(datafiles, cli, tmpdir):
     assert "ref" not in new_input["sources"][0]
     new_input2 = _yaml.load(input2_file)
     assert new_input2["sources"][0]["ref"] == ref
+
+
+@pytest.mark.datafiles(os.path.join(DATA_DIR, 'basic'))
+def test_filter_include_with_indirect_deps(datafiles, cli, tmpdir):
+    project = os.path.join(datafiles.dirname, datafiles.basename)
+    result = cli.run(project=project, args=[
+        'build', 'output-include-with-indirect-deps.bst'])
+    result.assert_success()
+
+    checkout = os.path.join(tmpdir.dirname, tmpdir.basename, 'checkout')
+    result = cli.run(project=project, args=[
+        'checkout', 'output-include-with-indirect-deps.bst', checkout])
+    result.assert_success()
+
+    # direct dependencies should be staged and filtered
+    assert os.path.exists(os.path.join(checkout, "baz"))
+
+    # indirect dependencies shouldn't be staged and filtered
+    assert not os.path.exists(os.path.join(checkout, "foo"))
+    assert not os.path.exists(os.path.join(checkout, "bar"))
diff --git a/tests/plugins/filter/basic/elements/input-with-deps.bst b/tests/plugins/filter/basic/elements/input-with-deps.bst
new file mode 100644
index 000000000..50aab573c
--- /dev/null
+++ b/tests/plugins/filter/basic/elements/input-with-deps.bst
@@ -0,0 +1,14 @@
+kind: import
+
+depends:
+- filename: input.bst
+
+sources:
+- kind: local
+  path: files
+
+public:
+  bst:
+    split-rules:
+      baz:
+      - /baz
diff --git a/tests/plugins/filter/basic/elements/output-include-with-indirect-deps.bst b/tests/plugins/filter/basic/elements/output-include-with-indirect-deps.bst
new file mode 100644
index 000000000..8325853e2
--- /dev/null
+++ b/tests/plugins/filter/basic/elements/output-include-with-indirect-deps.bst
@@ -0,0 +1,5 @@
+kind: filter
+
+depends:
+- filename: input-with-deps.bst
+  type: build