+
−import hghave
+
−
+
−@hghave.check("docgraph-ext", "Extension to generate graph from repository")
+
−def docgraph():
+
−    try:
+
−        import hgext.docgraph
+
−        hgext.docgraph.cmdtable # trigger import
+
−    except ImportError:
+
−        try:
+
−            import hgext3rd.docgraph
+
−            hgext3rd.docgraph.cmdtable # trigger import
+
−        except ImportError:
+
−            return False
+
−    return True