Avoid undefined jinja errors for skipped recipes

conda_build/metadata.py

@@ -1338,6 +1338,10 @@ def parse_until_resolved(
  )
  self.final = final
 
+ if self.skip():
+ self.final = True
+ return
+
  # recursively parse again so long as each iteration has fewer undefined jinja variables
  undefined_jinja_vars = ()
  while set(undefined_jinja_vars) != set(self.undefined_jinja_vars):

news/9999-avoid-undefined-jinja-in-skipped

@@ -0,0 +1,19 @@
+### Enhancements
+
+* <news item>
+
+### Bug fixes
+
+* Allow undefined jinja variables when a particular metadata block evaluates as skipped
+
+### Deprecations
+
+* <news item>
+
+### Docs
+
+* <news item>
+
+### Other
+
+* <news item>

tests/test_metadata.py

@@ -623,3 +623,21 @@ def test_parse_until_resolved(testing_metadata: MetaData, tmp_path: Path) -> Non
  match=("Failed to render jinja template"),
  ):
  testing_metadata.parse_until_resolved()
+
+def test_parse_until_resolved_skip_avoids_undefined_jinja(testing_metadata: MetaData, tmp_path: Path) -> None:
+ (recipe := tmp_path / (name := "meta.yaml")).write_text(
+"""
+package:
+ name: dummy
+ version: {{version}}
+build:
+ skip: True
+""")
+ testing_metadata._meta_path = recipe
+ testing_metadata._meta_name = name
+
+ # because skip is True, we should not error out here - so no exception should be raised
+ try:
+ testing_metadata.parse_until_resolved()
+ except CondaBuildUserError:
+ pytest.fail("Undefined variable caused error, even though this build is skipped")