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Commit | Line | Data |
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cc52de43 | 1 | #!/usr/bin/env python3 |
779822d9 JMF |
2 | from __future__ import unicode_literals, print_function |
3 | ||
4 | from inspect import getsource | |
19f38218 | 5 | import io |
779822d9 JMF |
6 | import os |
7 | from os.path import dirname as dirn | |
8 | import sys | |
9 | ||
779822d9 JMF |
10 | sys.path.insert(0, dirn(dirn((os.path.abspath(__file__))))) |
11 | ||
12 | lazy_extractors_filename = sys.argv[1] | |
13 | if os.path.exists(lazy_extractors_filename): | |
14 | os.remove(lazy_extractors_filename) | |
15 | ||
0b2e9d2c | 16 | # Block plugins from loading |
5c333d74 K |
17 | plugins_dirname = 'ytdlp_plugins' |
18 | plugins_blocked_dirname = 'ytdlp_plugins_blocked' | |
19 | if os.path.exists(plugins_dirname): | |
20 | os.rename(plugins_dirname, plugins_blocked_dirname) | |
0b2e9d2c | 21 | |
7a5c1cfe P |
22 | from yt_dlp.extractor import _ALL_CLASSES |
23 | from yt_dlp.extractor.common import InfoExtractor, SearchInfoExtractor | |
779822d9 | 24 | |
5c333d74 K |
25 | if os.path.exists(plugins_blocked_dirname): |
26 | os.rename(plugins_blocked_dirname, plugins_dirname) | |
0b2e9d2c | 27 | |
779822d9 JMF |
28 | with open('devscripts/lazy_load_template.py', 'rt') as f: |
29 | module_template = f.read() | |
30 | ||
251ae04e | 31 | CLASS_PROPERTIES = ['ie_key', 'working', '_match_valid_url', 'suitable', '_match_id', 'get_temp_id'] |
169d836f | 32 | module_contents = [ |
5ad28e7f | 33 | module_template, |
251ae04e | 34 | *[getsource(getattr(InfoExtractor, k)) for k in CLASS_PROPERTIES], |
5ad28e7f | 35 | '\nclass LazyLoadSearchExtractor(LazyLoadExtractor):\n pass\n'] |
779822d9 JMF |
36 | |
37 | ie_template = ''' | |
169d836f | 38 | class {name}({bases}): |
779822d9 JMF |
39 | _module = '{module}' |
40 | ''' | |
41 | ||
42 | make_valid_template = ''' | |
43 | @classmethod | |
44 | def _make_valid_url(cls): | |
c1ce6acd | 45 | return {valid_url!r} |
779822d9 JMF |
46 | ''' |
47 | ||
48 | ||
169d836f JMF |
49 | def get_base_name(base): |
50 | if base is InfoExtractor: | |
51 | return 'LazyLoadExtractor' | |
52 | elif base is SearchInfoExtractor: | |
53 | return 'LazyLoadSearchExtractor' | |
54 | else: | |
55 | return base.__name__ | |
56 | ||
57 | ||
779822d9 | 58 | def build_lazy_ie(ie, name): |
779822d9 JMF |
59 | s = ie_template.format( |
60 | name=name, | |
169d836f | 61 | bases=', '.join(map(get_base_name, ie.__bases__)), |
779822d9 | 62 | module=ie.__module__) |
251ae04e | 63 | valid_url = getattr(ie, '_VALID_URL', None) |
64 | if valid_url: | |
65 | s += f' _VALID_URL = {valid_url!r}\n' | |
66 | if not ie._WORKING: | |
8b7491c8 | 67 | s += ' _WORKING = False\n' |
779822d9 | 68 | if ie.suitable.__func__ is not InfoExtractor.suitable.__func__: |
251ae04e | 69 | s += f'\n{getsource(ie.suitable)}' |
779822d9 JMF |
70 | if hasattr(ie, '_make_valid_url'): |
71 | # search extractors | |
c1ce6acd | 72 | s += make_valid_template.format(valid_url=ie._make_valid_url()) |
779822d9 JMF |
73 | return s |
74 | ||
582be358 | 75 | |
8bdd16b4 | 76 | # find the correct sorting and add the required base classes so that subclasses |
169d836f JMF |
77 | # can be correctly created |
78 | classes = _ALL_CLASSES[:-1] | |
79 | ordered_cls = [] | |
80 | while classes: | |
81 | for c in classes[:]: | |
82 | bases = set(c.__bases__) - set((object, InfoExtractor, SearchInfoExtractor)) | |
83 | stop = False | |
84 | for b in bases: | |
85 | if b not in classes and b not in ordered_cls: | |
86 | if b.__name__ == 'GenericIE': | |
87 | exit() | |
88 | classes.insert(0, b) | |
89 | stop = True | |
90 | if stop: | |
91 | break | |
92 | if all(b in ordered_cls for b in bases): | |
93 | ordered_cls.append(c) | |
94 | classes.remove(c) | |
95 | break | |
96 | ordered_cls.append(_ALL_CLASSES[-1]) | |
97 | ||
779822d9 | 98 | names = [] |
169d836f JMF |
99 | for ie in ordered_cls: |
100 | name = ie.__name__ | |
779822d9 JMF |
101 | src = build_lazy_ie(ie, name) |
102 | module_contents.append(src) | |
169d836f JMF |
103 | if ie in _ALL_CLASSES: |
104 | names.append(name) | |
779822d9 JMF |
105 | |
106 | module_contents.append( | |
3fb4e21b | 107 | '\n_ALL_CLASSES = [{0}]'.format(', '.join(names))) |
779822d9 | 108 | |
6b97ca96 | 109 | module_src = '\n'.join(module_contents) + '\n' |
779822d9 | 110 | |
19f38218 | 111 | with io.open(lazy_extractors_filename, 'wt', encoding='utf-8') as f: |
779822d9 | 112 | f.write(module_src) |