font-patcher: Allow filename as naming source

[why]
With Martian Mono we have a font that uses aggressive abbreviation for
the weights and styles (two letters mostly) in all name fields. That is
very hard to parse.

[how]
Adding rules that detect these very short abbreviations might trigger in
a lot wrong places. As this is the only font that uses that we do not
want to risk that.

Instead we rewrite the filenames of the source font (Martian Mono) such
that it contains all the necessary information and add a new flag to the
patcher that allows it to use the filename as naming source.
Yes, as in days long past ;-)

Signed-off-by: Fini Jastrow <[email protected]>

font-patcher

@@ -6,7 +6,7 @@
 from __future__ import absolute_import, print_function, unicode_literals
 
 # Change the script version when you edit this script:
-script_version = "4.6.1"
+script_version = "4.7.0"
 
 version = "3.0.2"
 projectName = "Nerd Fonts"
@@ -582,6 +582,8 @@ class font_patcher:
                     parser_name = font.fullname
                 elif self.args.force_name == 'postscript':
                     parser_name = font.fontname
+                elif self.args.force_name == 'filename':
+                    parser_name = os.path.basename(font.path).split('.')[0]
                 else:
                     parser_name = self.args.force_name
                     user_supplied_name = True
@@ -1899,7 +1901,7 @@ def setup_arguments():
     expert_group.add_argument('--has-no-italic',                           dest='noitalic',         default=False, action='store_true', help='Font family does not have Italic (but Oblique), to help create correct RIBBI set')
     expert_group.add_argument('-l', '--adjust-line-height',                dest='adjustLineHeight', default=False, action='store_true', help='Whether to adjust line heights (attempt to center powerline separators more evenly)')
     expert_group.add_argument('--metrics',                                 dest='metrics',          default=None, choices=get_metrics_names(), help='Select vertical metrics source (for problematic cases)')
-    expert_group.add_argument('--name',                                    dest='force_name',       default=None, type=str,             help='Specify naming source (\'full\', \'postscript\', or concrete free name-string)')
+    expert_group.add_argument('--name',                                    dest='force_name',       default=None, type=str,             help='Specify naming source (\'full\', \'postscript\', \'filename\', or concrete free name-string)')
     expert_group.add_argument('--postprocess',                             dest='postprocess',      default=False, type=str,            help='Specify a Script for Post Processing')
     progressbars_group_parser = expert_group.add_mutually_exclusive_group(required=False)
     expert_group.add_argument('--removeligs', '--removeligatures',         dest='removeligatures',  default=False, action='store_true', help='Removes ligatures specificed in JSON configuration file (needs --configfile)')