refactoring some font support

ext/fonts/gen_font_includes.py

@@ -0,0 +1,71 @@
+#!/usr/bin/env python3
+
+import os
+import re
+import sys
+import subprocess
+
+DEFAULT_FONTS = [
+    'B612_Mono',
+    'BrassMono',
+    'BrassMonoCode',
+    'FiraCode',
+    'Go',
+    'IBMPlexMono',
+    'Inconsolata',
+    'InconsolataExpanded',
+    'ShareTech',
+    'Syne',
+]
+
+def generate_font(header_file, path):
+    symbol_name=os.path.splitext(os.path.basename(path))[0]
+    symbol_name=symbol_name.replace('-', '_')
+    symbol_name=symbol_name.split('_')[1]
+    output = subprocess.check_output(
+            f'binary_to_compressed_c "{path}" DefaultFont{symbol_name}',
+            shell=True)
+    header_file.write('\n\n')
+    header_file.write(output.decode('utf-8'))
+
+def generate_header(header, guard, files):
+    try:
+        os.remove(header)
+    except FileNotFoundError:
+        pass
+    except:
+        raise
+    with open(header, 'wt') as header_file:
+        header_file.write(f"""#pragma once
+namespace kte::Fonts {{
+""")
+        for file in files:
+            generate_font(header_file, file)
+
+        header_file.write('}}');
+
+    subprocess.call("sed -i '' -e 's/_compressed_size/CompressedSize/' "+
+                    f"{header_file.name}", shell=True)
+    subprocess.call("sed -i '' -e 's/_compressed_data/CompressedData/' " + 
+                    f"{header_file.name}", shell=True)
+
+def generate_dir(path):
+    filelist = [os.path.join(path, file) for file in os.listdir(path)
+                if file.endswith('ttf')]
+    namespace = f'kte::{path}'
+
+    header = f"{path.replace('-', '_')}.h"
+    generate_header(header, namespace, filelist)
+
+def main(fonts=None):
+    if fonts is None:
+        fonts = DEFAULT_FONTS
+
+    for font in fonts:
+        generate_dir(font)
+
+if __name__ == '__main__':
+    fonts = None
+    if len(sys.argv) > 1:
+        fonts = sys.argv[1:]
+    main(fonts)