Enable skipping maintainer annotations (#466)

This PR enables adding `skip_maintainers = True` to an OBO converter
class to turn off outputting ontology-level maintainer annotations.

This supports the HGNC use case, where the maintainers asked that they
are not explicitly listed on the PyOBO third-party ontology conversion
because they don't want it to be confused for them endorsing the
product.

Related discussion on how to best show this attribution on EBI OLS:
EBISPOT/ols4#1025

Author: cthoyt

src/pyobo/sources/hgnc/hgnc.py

@@ -210,6 +210,7 @@ class HGNCGetter(Obo):
         for so_id in sorted(set(LOCUS_TYPE_TO_SO.values()))
         if so_id
     ]
+    skip_maintainers = True
 
     def iter_terms(self, force: bool = False) -> Iterable[Term]:
         """Iterate over terms in the ontology."""
@@ -342,6 +343,8 @@ def get_terms(version: str | None = None, force: bool = False) -> Iterable[Term]
                 term.append_exact_match(
                     Reference(prefix="iuphar.ligand", identifier=iuphar[len("ligandId:") :])
                 )
+            elif iuphar.startswith("HGNC:"):
+                pass
             else:
                 tqdm.write(f"[hgnc:{identifier}] unhandled IUPHAR: {iuphar}")
 

src/pyobo/struct/struct.py

@@ -611,6 +611,11 @@ class Obo:
 
     ontology_version_iri: ClassVar[str | None] = None
 
+    #: Allow skipping adding maintainers annotations, in case
+    #: the resource maintainers don't want their names associated
+    #: with the OWL exports that e.g. end up on EBI OLS
+    skip_maintainers: ClassVar[bool] = False
+
     def __post_init__(self):
         """Run post-init checks."""
         if self.ontology is None:
@@ -978,19 +983,22 @@ def _iterate_property_pairs(self) -> Iterable[Annotation]:
                 yield Annotation(v.has_logo, OBOLiteral.uri(logo))
             if mailing_list := resource.get_mailing_list():
                 yield Annotation(v.has_mailing_list, OBOLiteral.string(mailing_list))
-            if (maintainer := resource.get_contact()) and maintainer.orcid:
-                yield Annotation(
-                    v.has_maintainer,
-                    Reference(prefix="orcid", identifier=maintainer.orcid, name=maintainer.name),
-                )
-            for maintainer in resource.contact_extras or []:
-                if maintainer.orcid:
+            if not self.skip_maintainers:
+                if (maintainer := resource.get_contact()) and maintainer.orcid:
                     yield Annotation(
                         v.has_maintainer,
                         Reference(
                             prefix="orcid", identifier=maintainer.orcid, name=maintainer.name
                         ),
                     )
+                for maintainer in resource.contact_extras or []:
+                    if maintainer.orcid:
+                        yield Annotation(
+                            v.has_maintainer,
+                            Reference(
+                                prefix="orcid", identifier=maintainer.orcid, name=maintainer.name
+                            ),
+                        )
 
         # Root terms
         for root_term in self.root_terms or []: