Add option to swap author first name and last name when reading metadata from a file name

src/calibre/ebooks/metadata/meta.py

@@ -132,6 +132,15 @@ def metadata_from_filename(name, pat=None):
             au = match.group('author')
             aus = string_to_authors(au)
             mi.authors = aus
+            if prefs['swap_author_names'] and mi.authors:
+                def swap(a):
+                    parts = a.split()
+                    if len(parts) > 1:
+                        t = parts[-1]
+                        parts = parts[:-1]
+                        parts.insert(0, t)
+                    return ' '.join(parts)
+                mi.authors = [swap(x) for x in mi.authors]
         except (IndexError, ValueError):
             pass
         try:

src/calibre/gui2/dialogs/config/add_save.py

@@ -56,6 +56,7 @@ class AddSave(QTabWidget, Ui_TabWidget):
         self.opt_read_metadata_from_filename.setChecked(not prefs['read_file_metadata'])
         self.filename_pattern = FilenamePattern(self)
         self.metadata_box.layout().insertWidget(0, self.filename_pattern)
+        self.opt_swap_author_names.setChecked(prefs['swap_author_names'])
 
     def validate(self):
         tmpl = preprocess_template(self.opt_template.text())
@@ -87,6 +88,7 @@ class AddSave(QTabWidget, Ui_TabWidget):
         prefs['read_file_metadata'] = not bool(self.opt_read_metadata_from_filename.isChecked())
         pattern = self.filename_pattern.commit()
         prefs['filename_pattern'] = pattern
+        prefs['swap_author_names'] = bool(self.opt_swap_author_names.isChecked())
 
         return True
 

src/calibre/gui2/dialogs/config/add_save.ui

@@ -20,8 +20,8 @@
    <attribute name="title">
     <string>&amp;Adding books</string>
    </attribute>
-   <layout class="QVBoxLayout" name="verticalLayout_2">
-    <item>
+   <layout class="QGridLayout" name="gridLayout_3">
+    <item row="0" column="0" colspan="2">
      <widget class="QLabel" name="label_6">
       <property name="text">
        <string>Here you can control how calibre will read metadata from the files you add to it. calibre can either read metadata from the contents of the file, or from the filename.</string>
@@ -31,14 +31,24 @@
       </property>
      </widget>
     </item>
-    <item>
+    <item row="1" column="0">
      <widget class="QCheckBox" name="opt_read_metadata_from_filename">
       <property name="text">
        <string>Read metadata only from &amp;file name</string>
       </property>
      </widget>
     </item>
-    <item>
+    <item row="1" column="1">
+     <widget class="QCheckBox" name="opt_swap_author_names">
+      <property name="toolTip">
+       <string>Swap the firstname and lastname of the author. This affects only metadata read from file names.</string>
+      </property>
+      <property name="text">
+       <string>&amp;Swap author firstname and lastname</string>
+      </property>
+     </widget>
+    </item>
+    <item row="2" column="0" colspan="2">
      <widget class="QGroupBox" name="metadata_box">
       <property name="title">
        <string>&amp;Configure metadata from file name</string>

src/calibre/utils/config.py

@@ -649,6 +649,8 @@ def _prefs():
               help=_('Read metadata from files'))
     c.add_opt('worker_process_priority', default='normal',
               help=_('The priority of worker processes'))
+    c.add_opt('swap_author_names', default=False,
+            help=_('Swap author first and last names when reading metadata'))
 
     c.add_opt('migrated', default=False, help='For Internal use. Don\'t modify.')
     return c