GbibClean adding option --rename-field (#79)

GooseBib/bibtex.py

@@ -1035,6 +1035,14 @@ def _split_lines(self, text, width):
         ),
     )
 
+    parser.add_argument(
+        "--rename-field",
+        type=str,
+        nargs=2,
+        action="append",
+        help='Rename field (e.g. "arxivid" to "eprint").',
+    )
+
     parser.add_argument(
         "--no-title",
         action="store_true",
@@ -1317,6 +1325,14 @@ def GbibClean(cli_args: list[str] = None):
             data, m = clever_merge(data)
             merged = {**merged, **m}
 
+        # rename fields
+
+        if args.rename_field:
+            for oldfield, newfield in args.rename_field:
+                for entry in data:
+                    if oldfield in entry:
+                        entry[newfield] = entry.pop(oldfield)
+
         # rename keys
 
         if args.rename:

tests/test_GbibClean.py

@@ -87,6 +87,32 @@ def test_hidden_doi_arxiv(self):
 
         os.remove(output)
 
+    def test_rename_field(self):
+        source = os.path.join(dirname, "library_hidden_doi_arxiv.bib")
+        output = os.path.join(dirname, "output.bib")
+        data = os.path.join(dirname, "library.yaml")
+        gbib.bibtex.GbibClean(["-f", "-o", output, source, "--rename-field", "arxivid", "eprint"])
+
+        with open(output) as file:
+            bib = bibtexparser.load(file, parser=bibtexparser.bparser.BibTexParser())
+
+        with open(data) as file:
+            data = yaml.load(file.read(), Loader=yaml.FullLoader)
+
+        for key in data:
+            data[key]["eprint"] = data[key].pop("arxivid")
+
+        for entry in bib.entries:
+            d = data[entry["ID"]]
+
+            for key in d:
+                if entry[key][0] == "{":
+                    self.assertEqual("{" + str(d[key]) + "}", entry[key])
+                else:
+                    self.assertEqual(str(d[key]), entry[key])
+
+        os.remove(output)
+
     def test_missing_doi_arxiv(self):
         source = os.path.join(dirname, "library_missing_doi_arxiv.bib")
         output = os.path.join(dirname, "output.yaml")