refactor importer metadata tables into separate file; move some helpers around

- MAX_ABSTRACT_LENGTH set in a single place (importer common)
- merge datacite license slug table in to common table, removing some
  TDM-specific licenses (which do not apply in the context of preserving
  the full work)

1 files changed, 1 insertions, 4 deletions

diff --git a/python/fatcat_tools/importers/doaj_article.py b/python/fatcat_tools/importers/doaj_article.py
index f5c886a2..92dbe574 100644
--- a/python/fatcat_tools/importers/doaj_article.py
+++ b/python/fatcat_tools/importers/doaj_article.py
@@ -11,7 +11,7 @@ from typing import Any, Dict, List, Optional, Sequence
 import fatcat_openapi_client
 from fatcat_openapi_client import ApiClient, ReleaseEntity
 
-from fatcat_tools.importers.common import EntityImporter
+from fatcat_tools.importers.common import MAX_ABSTRACT_LENGTH, EntityImporter
 from fatcat_tools.normal import (
     clean_doi,
     clean_orcid,
@@ -24,9 +24,6 @@ from fatcat_tools.normal import (
     parse_month,
 )
 
-# Cutoff length for abstracts.
-MAX_ABSTRACT_LENGTH = 2048
-
 
 class DoajArticleImporter(EntityImporter):
     def __init__(self, api: ApiClient, issn_map_file: Sequence, **kwargs) -> None: