def filter_img_metadata(
data_path: str,
predicate: Callable[[Dict[str, Any]], bool],
field_to_remove: str,
offset: int = 0,
limit: int = None,
debug_info: bool = False,
) -> None:
article_paths = [
join(data_path, f)
for f in listdir(data_path) if isdir(join(data_path, f))
]
valid_limit = _validated_limit(limit, offset, len(article_paths))
for i in range(offset, offset + valid_limit):
path = article_paths[i]
if debug_info: print(i, path)
meta_path = join(path, 'img/', 'meta.json')
meta_arr = _getJSON(meta_path)['img_meta']
meta_arr_filtered = [x for x in meta_arr if predicate(x)]
for x in meta_arr_filtered:
# useless fields since now it always the same
x.pop(field_to_remove, None)
_dump(meta_path, {"img_meta": meta_arr_filtered})
def _parse_img_headings(
page_dir: str, invalidate_cache: bool, language_code: str
) -> None:
meta_path = join(page_dir, 'img', 'meta.json')
meta_arr = _getJSON(meta_path)['img_meta']
if invalidate_cache:
for m in meta_arr:
m.pop('headings', None)
text_path = join(page_dir, 'text.json')
page_html = _getJSON(text_path)['html']
image_headings = _get_image_headings(page_html, language_code)
for filename, headings in image_headings.items():
if not _valid_img_type(filename): continue
if len(headings) == 0: continue
res = [
i for i, x in enumerate(meta_arr)
if unquote(x['url']).split('/wiki/')[-1] == filename
]
if len(res) != 1: continue
i = res[0]
# TODO: not update when invalidate_cache=False even though we already queried
meta_arr[i]['headings'] = headings
_dump(meta_path, {"img_meta": meta_arr})
def generate_visual_features(
data_path: str,
offset: int = 0,
limit: int = None,
mapper: IMapper = None,
invalidate_cache: bool = False,
debug_info: bool = False,
) -> None:
article_paths = [
join(data_path, f)
for f in listdir(data_path) if isdir(join(data_path, f))
]
valid_limit = _validated_limit(limit, offset, len(article_paths))
mapper = mapper if mapper else ResNet152Mapper()
for i in range(offset, offset + valid_limit):
path = article_paths[i]
if debug_info: print(i, path)
meta_path = join(path, 'img/', 'meta.json')
meta_arr = _getJSON(meta_path)['img_meta']
for meta in meta_arr:
if 'features' in meta and not invalidate_cache:
continue
img_path = join(path, 'img/', meta['filename'])
try:
meta['features'] = mapper.map(img_path)
except Exception as e:
print("ERROR: exception for image", img_path, '|||', str(e))
continue
_dump(meta_path, {"img_meta": meta_arr})
def _remove_obsolete_imgs(img_dir: Path, img_links: PageGenerator,
params: "QueryParams") -> None:
uptodate_imgs = [_get_img_path(img, img_dir) for img in img_links]
icon_removal = params.early_icons_removal
img_names = ([
x[1].name
for x in uptodate_imgs if _valid_img_type(x[0], icon_removal)
] + [
x[2].name
for x in uptodate_imgs if _valid_img_type(x[0], icon_removal)
])
files = [img_dir / f for f in listdir(img_dir) if isfile(join(img_dir, f))]
for fpath in files:
fname = fpath.name
if (fname not in img_names) and fname[-5:].lower() != ".json":
print("Removing obsolete image", fpath)
fpath.unlink()
meta_path = img_dir / 'meta.json'
if not meta_path.exists():
return
meta = _getJSON(meta_path)
uptodate_meta = [x for x in meta['img_meta'] if x['filename'] in img_names]
if len(meta['img_meta']) != len(uptodate_meta):
print("META", img_dir)
_dump(meta_path, {"img_meta": uptodate_meta})
def _query_img_captions_from_preview(
page_dir: Path,
driver: WebDriver,
icons: Set[str],
language_code: str = 'en',
debug_info: bool = False,
) -> None:
img_dir = _get_path(page_dir / "img", create_if_not_exists=False)
meta_path = img_dir / 'meta.json'
meta_arr = _getJSON(meta_path)['img_meta']
page_id = basename(page_dir)
if page_id == '':
page_id = basename(str(page_dir)[:-1])
for i, meta in enumerate(meta_arr):
img_title = meta['title']
if not _valid_img_type(img_title):
continue
file_label = _get_translated_file_label(language_code)
# TODO: here we extract img_id without language-specific File: prefix
# and later on we add it again to build a URL. Check whether we could
# work WITH that language-specific part and thus avoid translations
img_id = unquote(meta['url']).split('/wiki/{}'.format(file_label))[-1]
if 'caption' in meta_arr[i]:
if debug_info: print('Skipping cached caption', img_id)
continue
if 'is_icon' in meta_arr[i] and meta_arr[i]['is_icon']:
if debug_info: print('Skipping known icon', img_id)
continue
caption = _parse_caption_with_js(driver, language_code, page_id,
img_id, icons, debug_info)
if caption is None: icons.add(img_id)
meta_arr[i].pop('caption', None)
meta_arr[i]['is_icon'] = (caption is None)
caption_match_description = (
('description' not in meta_arr[i]) or (caption != _remove_prefix(
meta_arr[i]['description'], "English: ")))
if caption and caption_match_description:
meta_arr[i]['caption'] = caption
_dump(meta_path, {"img_meta": meta_arr})
def tokenize_image_titles(
data_path: str,
offset: int = 0,
limit: int = None,
invalidate_cache: bool = False,
debug_info: bool = False,
) -> None:
article_paths = [
join(data_path, f)
for f in listdir(data_path) if isdir(join(data_path, f))
]
valid_limit = _validated_limit(limit, offset, len(article_paths))
tokenizer = CrazyTokenizer(hashtags='split')
mapper = str.maketrans({x: '' for x in string.punctuation})
regex = re.compile(r'(\d+)')
for i in range(offset, offset + valid_limit):
path = article_paths[i]
if debug_info: print(i, path)
meta_path = join(path, 'img/', 'meta.json')
meta_arr = _getJSON(meta_path)['img_meta']
for meta in meta_arr:
if 'parsed_title' in meta and not invalidate_cache:
continue
filename = os.path.splitext(meta['title'])[0]
sentence = filename.translate(mapper)
sentence = regex.sub(r' \g<1> ', sentence)
tokens = []
for word in sentence.split():
tokens += (
tokenizer.tokenize("#" + word)
if not word.isdigit()
else [word]
)
meta['parsed_title'] = " ".join(tokens)
_dump(meta_path, {"img_meta": meta_arr})
def _query_img_captions_from_article(
page_dir: Path,
invalidate_cache: bool = False,
language_code: str = 'en',
debug_info: bool = False,
) -> None:
meta_path = join(page_dir, 'img', 'meta.json')
meta_arr = _getJSON(meta_path)['img_meta']
if invalidate_cache:
for m in meta_arr:
m.pop('caption', None)
m.pop('is_icon', None)
text_path = join(page_dir, 'text.json')
page_html = _getJSON(text_path)['html']
image_captions = _get_image_captions(page_html, language_code, debug_info)
for filename, caption in image_captions:
if not _valid_img_type(filename): continue
res = [
i for i, x in enumerate(meta_arr)
if unquote(x['url']).split('/wiki/')[-1] == filename
]
if len(res) != 1:
if debug_info: print('WARNING: Meta for page {} is missing the image {}. Either was'\
' removed intentionally or cache is outdated'.format(page_dir, filename))
continue
i = res[0]
caption_match_description = (
('description' not in meta_arr[i]) or (caption != _remove_prefix(
meta_arr[i]['description'], "English: ")))
if 'caption' not in meta_arr[i] and caption_match_description:
meta_arr[i]['caption'] = caption
meta_arr[i]['is_icon'] = False # preview only applies to not-icons
_dump(meta_path, {"img_meta": meta_arr})
def _img_download(img_links: PageGenerator, page_dir: Path,
params: "QueryParams", tc: int, uc: int) -> Tuple[int, int]:
if params.invalidate_cache.img_cache:
shutil.rmtree(page_dir / "img", ignore_errors=True)
img_dir = _get_path(page_dir / "img", create_if_not_exists=True)
meta_path = img_dir / 'meta.json'
_remove_invalid_imgs(img_dir)
if params.invalidate_cache.img_meta_cache or params.invalidate_cache.oudated_img_meta_cache:
_remove_obsolete_imgs(img_dir, img_links, params)
download_meta = (params.invalidate_cache.img_meta_cache
or _is_meta_outdated(meta_path, img_links, params))
if download_meta and params.debug_info: print("Updating image metadata")
meta = []
for img in img_links:
downloaded, filename = _single_img_download(img, img_dir, params)
if downloaded:
tc += 1
if download_meta and filename != "":
meta.append({
"filename": filename,
"title": img.title(with_ns=False),
"url": img.full_url(),
'on_commons': not filename.endswith('.ORIGINAL'),
})
if params.fill_property.img_description:
description = _get_description(img)
if len(description) > 0:
meta[-1]['description'] = description
if download_meta:
_dump(meta_path, {"img_meta": meta})
return (tc, uc)
def query(filename: str, params: QueryParams) -> None:
site = pywikibot.Site(code=params.language_code,
fam='wikipedia',
user='******')
pages = list(
pagegenerators.TextfilePageGenerator(filename=filename, site=site))
limit = _validated_limit(params.limit, params.offset, len(pages))
icons: Set[str] = set()
# TODO: don't execute driver when fill_captions=Flase
options = Options()
options.headless = True
driver = webdriver.Firefox(options=options)
print('Downloading... offset={}, limit={}'.format(params.offset, limit))
tc, uc = 0, 0
for i in range(params.offset, params.offset + limit):
p = pages[i]
if p.pageid == 0:
print("\nERROR: Cannot fetch the page " + p.title())
continue
# onyshchak: create_if_not_exists - switch to enrich only existing data
page_dir = _get_path(
out_dir=params.out_dir + p.title(as_filename=True).rstrip('.'),
create_if_not_exists=not params.only_update_cached_pages)
if not page_dir.exists():
continue
if params.debug_info: print('\n{}) {}'.format(i, page_dir))
should_download_article = lambda path: (not path.exists() or stat(
path).st_size == 0 or params.invalidate_cache.text_cache)
text_path = page_dir / 'text.json'
if should_download_article(text_path):
if params.debug_info: print("Downloading text.json")
page_json = {
"title": p.title(),
"id": p.pageid,
"url": p.full_url(),
}
if params.fill_property.text_wikitext:
page_json["wikitext"] = p.text
if params.fill_property.text_html:
response = urllib.request.urlopen(p.full_url())
page_json["html"] = response.read().decode("utf-8")
_dump(text_path, page_json)
# downloading page images
tc, uc = _img_download(p.imagelinks(), page_dir, params, tc, uc)
if params.fill_property.img_caption:
_query_img_captions(
page_dir=page_dir,
driver=driver,
icons=icons,
language_code=params.language_code,
invalidate_cache=params.invalidate_cache.caption_cache,
debug_info=params.debug_info,
)
print('\nDownloaded {} images, where {} of them unavailable from commons'.
format(tc, uc))
driver.quit()
icons_json = _getJSON(_KNOWN_ICONS_PATH)
updated_icons = icons.union(icons_json['known_icons'])
_dump(_KNOWN_ICONS_PATH, {"known_icons": list(updated_icons)})