More verbose output

litdb/DB_dict.py

@@ -231,6 +231,27 @@ def flatten(l):
                     flat_list.append(item)
             return flat_list
 
+        def diff_dict(d1, d2):
+            """Compares two dictionaries and returns the list of keys
+            that differentiate them.
+            """
+            different_keys = set()
+
+            for key in d1:
+                if key in d2:
+                    if d1[key] != d2[key]:
+                        different_keys.add(key)
+                else:
+                    different_keys.add(key)
+            for key in d2:
+                if key in d1:
+                    if d1[key] != d2[key]:
+                        different_keys.add(key)
+                else:
+                    different_keys.add(key)
+
+            return different_keys
+
         if config:
             if 'journal-blacklist' in config:
                 journal_blacklist = config['journal-blacklist']
@@ -253,7 +274,7 @@ def flatten(l):
                     strict_list.append(orcid)
 
         additions = []
-        updates = []
+        updates = {}
         for doi in new_records:
             if doi not in db:
                 # First check to make sure that the article satisfies
@@ -283,9 +304,16 @@ def flatten(l):
                 if correct_affiliation and correct_journal:
                     db[doi] = DB_dict()
                     db[doi][DB_dict.CR_KEY] = new_records[doi][DB_dict.CR_KEY]
-                    additions.append(db[doi])
+                    additions.append(doi)
             elif new_records[doi][DB_dict.CR_KEY] != db[doi][DB_dict.CR_KEY]:
                 # Update if record has changed.
+                changed_field_keys = diff_dict(
+                        db[doi][DB_dict.CR_KEY],
+                        new_records[doi][DB_dict.CR_KEY])
+                changes = {}
+                for key in changed_field_keys:
+                    changes[key] = (db[doi][DB_dict.CR_KEY].get(key),
+                                    new_records[doi][DB_dict.CR_KEY].get(key))
                 db[doi][DB_dict.CR_KEY] = new_records[doi][DB_dict.CR_KEY]
-                updates.append(db[doi])
+                updates[doi] = changes
         return db, additions, updates

litdb/_version.py

@@ -1 +1 @@
-__version__ = "1.0"
+__version__ = "1.1"

litdb/litdb.py

@@ -87,17 +87,19 @@ def litdb():
         updated_records = get_doi(dois_to_check, configuration)
         db, _, updates_old = DB_dict.merge_dbs(
                 updated_records, db, configuration)
-        updates = updates_new + updates_old
+        updates = {**updates_old, **updates_new}
 
     with open(args.db_file, 'w') as db_file:
         print(yaml.dump(db), file=db_file)
 
-    print(f"{len(additions)} records added, {len(updates)} records updated:")
+    print(f"{len(additions)} records added, {len(updates)} records updated.")
     if additions:
         print("Additions:")
-        for record in additions:
-            print(f"    {record.doi}")
+        for doi in additions:
+            print(f"    {doi}")
     if updates:
         print("Updates:")
-        for record in updates:
-            print(f"    {record.doi}")
+        for doi in updates:
+            print(f"    https://dx.doi.org/{doi}")
+            for field in updates[doi]:
+                print(f"        {field}: {updates[doi][field]}")