calibre/setup/piper.py
2024-09-02 21:14:36 +05:30

73 lines
2.8 KiB
Python

#!/usr/bin/env python
# License: GPLv3 Copyright: 2019, Kovid Goyal <kovid at kovidgoyal.net>
import json
import os
import re
from contextlib import suppress
from setup.revendor import ReVendor
class PiperVoices(ReVendor):
description = 'Download the list of Piper voices'
NAME = 'piper_voices'
TAR_NAME = 'piper voice list'
VERSION = 'master'
DOWNLOAD_URL = f'https://raw.githubusercontent.com/rhasspy/piper/{VERSION}/VOICES.md'
CAN_USE_SYSTEM_VERSION = False
@property
def output_file_path(self) -> str:
return os.path.join(self.RESOURCES, 'piper-voices.json')
def run(self, opts):
url = opts.path_to_piper_voices
if url:
with open(opts.path_to_piper_voices) as f:
src = f.read()
else:
url = opts.piper_voices_url
src = self.download_securely(url).decode('utf-8')
lang_map = {}
current_lang = current_voice = ''
lang_pat = re.compile(r'\((.+?)\)')
model_pat = re.compile(r'\[model\]\((.+?)\)')
config_pat = re.compile(r'\[config\]\((.+?)\)')
for line in src.splitlines():
if line.startswith('* '):
if m := lang_pat.search(line):
current_lang = m.group(1).partition(',')[0].replace('`', '')
lang_map[current_lang] = {}
current_voice = ''
else:
line = line.strip()
if not line.startswith('*'):
continue
if '[model]' in line:
if current_lang and current_voice:
qual_map = lang_map[current_lang][current_voice]
quality = line.partition('-')[0].strip().lstrip('*').strip()
model = config = ''
if m := model_pat.search(line):
model = m.group(1)
if m := config_pat.search(line):
config = m.group(1)
if not quality or not model or not config:
raise SystemExit('Failed to parse piper voice model definition from:\n' + line)
qual_map[quality] = {'model': model, 'config': config}
else:
current_voice = line.partition(' ')[-1].strip()
lang_map[current_lang][current_voice] = {}
if not lang_map:
raise SystemExit(f'Failed to read any piper voices from: {url}')
if 'en_US' not in lang_map:
raise SystemExit(f'Failed to read en_US piper voices from: {url}')
with open(self.output_file_path, 'w') as f:
json.dump({'version': 1, 'lang_map': lang_map}, f, indent=2, sort_keys=False)
def clean(self):
with suppress(FileNotFoundError):
os.remove(self.output_file_path)