Drop lots of legacy code. Support Python 3.7-3.11.

[librarian.git] / src / librarian / fonts.py

diff --git a/src/librarian/fonts.py b/src/librarian/fonts.py
index adaeae4..0f99bf4 100644 (file)
--- a/src/librarian/fonts.py
+++ b/src/librarian/fonts.py
@@ -1,38 +1,21 @@
+# This file is part of Librarian, licensed under GNU Affero GPLv3 or later.
+# Copyright © Fundacja Wolne Lektury. See NOTICE for more information.
+#
 import os
 from shutil import rmtree
-import subprocess
 from tempfile import mkdtemp
+from fontTools.subset import main
 
 
-def strip_font(path, chars, verbose=False):
+def strip_font(path, chars):
     tmpdir = mkdtemp('-librarian-epub')
-    try:
-        cwd = os.getcwd()
-    except OSError:
-        cwd = None
-
-    os.chdir(os.path.join(os.path.dirname(os.path.realpath(__file__)),
-                          'font-optimizer'))
-    optimizer_call = [
-        'perl', 'subset.pl', '--chars',
-        ''.join(chars).encode('utf-8'),
+    main([
         path,
-        os.path.join(tmpdir, 'font.ttf')
-    ]
-    env = {"PERL_USE_UNSAFE_INC": "1"}
-    if verbose:
-        print("Running font-optimizer")
-        subprocess.check_call(optimizer_call, env=env)
-    else:
-        dev_null = open(os.devnull, 'w')
-        subprocess.check_call(optimizer_call, stdout=dev_null,
-                              stderr=dev_null, env=env)
+       '--text=' + ''.join(chars),
+       '--output-file=' + os.path.join(tmpdir, 'font.ttf')
+    ])
     with open(os.path.join(tmpdir, 'font.ttf'), 'rb') as f:
         content = f.read()
 
     rmtree(tmpdir)
-
-    if cwd is not None:
-        os.chdir(cwd)
-
     return content