[version_table] Improve date parsing (#527)

So far the script only allowed datetimes. Now full/partial dates are allowed too.

src/common/dates.py

@@ -93,6 +93,15 @@ def parse_datetime(text: str, formats: list[str] = frozenset([
     raise ValueError(msg)
 
 
+def parse__datetime_or_date_or_month_year_date(text: str) -> datetime.datetime:
+    """Parse a given text representing a datetime, date or a partial date using the default list of formats.
+    """
+    try:
+        return parse_datetime(text)
+    except ValueError:
+        return parse_date_or_month_year_date(text)
+
+
 def date(year: int, month: int, day: int) -> datetime.datetime:
     """Create a datetime object with the given year, month and day, at midnight."""
     return datetime.datetime(year, month, day, tzinfo=datetime.timezone.utc)

src/release_table.py

@@ -138,16 +138,13 @@ class Field:
         str_value = self.template.render(**match.groupdict()) if self.template else raw_value
 
         if self.type == "date":
-            try:
-                return dates.parse_date(str_value)
-            except ValueError:
-                return dates.parse_month_year_date(str_value)
+            return dates.parse_date_or_month_year_date(str_value)
 
-        elif self.type == "range":
+        if self.type == "range":
             items = RANGE_LIST_SEPARATOR_PATTERN.split(str_value)
             return f"{items[0]} - {items[-1]}" if len(items) > 1 else str_value
 
-        elif self.type == "identifier":
+        if self.type == "identifier":
             return endoflife.to_identifier(str_value)
 
         return str_value

src/version_table.py

@@ -59,7 +59,7 @@ with ProductData(config.product) as product_data:
                     continue
 
                 version_name = config.render(version_match)
-                version_date = dates.parse_datetime(cells[version_date_index])
+                version_date = dates.parse__datetime_or_date_or_month_year_date(cells[version_date_index])
                 product_data.declare_version(version_name, version_date)
 
         except ValueError as e: