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more flexible splitting out of textless pages

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xenofem 2024-02-06 11:59:20 -05:00
parent aefaf824a8
commit 330b10c85b
1 changed files with 68 additions and 49 deletions
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117
dlibrary/dlibrary.py
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@ -25,7 +25,7 @@ FANZA_ID_REGEX = re.compile('^d_[0-9]+$')
FAKKU_ID_REGEX = re.compile('.*_FAKKU$')
TEXTLESS_REGEX = re.compile('(台詞|セリフ)(な|無)し|notext|textless')
ALT_VERSIONS = ['褐色', '日焼け']
ALT_VERSIONS = ['褐色', '日焼け', 'pink']
IMAGE_FILE_EXTENSIONS = ['.png', '.jpg', '.jpeg', '.gif', '.tiff']
@ -179,12 +179,12 @@ def image_xrefs(pdf):
print('\nSuccess')
return xrefs
def link_pdf(src, dest, start_index=0):
def link_pdf(src, dest, start_index):
with fitz.open(src) as pdf:
xrefs = image_xrefs(pdf)
if xrefs is None:
print(f'Support for weirder PDFs not yet implemented, skipping {src}')
return
return None
dest.mkdir(parents=True, exist_ok=True)
for (idx, xref) in enumerate(xrefs, start=start_index):
@ -193,6 +193,8 @@ def link_pdf(src, dest, start_index=0):
with open(file_path, 'wb') as f:
f.write(image["image"])
return pdf.page_count
def complete_prefix_number_ordering(entries):
if len(entries) == 1:
return entries
@ -272,7 +274,7 @@ def unique_hierarchical_prefix_numbering(entries, start_point=0):
return None
def link_ordered_files(ordering, dest, start_index=0):
def link_ordered_files(ordering, dest, start_index):
dest.mkdir(parents=True, exist_ok=True)
for (idx, src_path) in enumerate(ordering, start=start_index):
@ -293,6 +295,9 @@ def collate(args):
extraction_dir = args.destdir / 'extract'
hint_map = {hint.relative_to(extraction_dir).parents[-2].name: hint for hint in args.hints}
collation_staging_area = args.destdir / 'site' / 'images-staging'
collation_staging_area.mkdir(parents=True)
for work_path in extraction_dir.iterdir():
work_id = work_path.name
@ -304,51 +309,64 @@ def collate(args):
if virtual == (1,):
continue
if work_id in hint_map:
hint = hint_map[work_id]
entries = [hint] if hint.is_file() else ls_ignore(hint)
work_staging_dir = collation_staging_area / work_id
pages_collated = collate_from_paths([hint_map.get(work_id, work_path)], work_staging_dir, 0)
if pages_collated:
print(f'Collated {pages_collated} pages for {work_id}')
work_staging_dir.rename(collation_dir)
else:
search_dir = work_path
while True:
entries = ls_ignore(search_dir)
if len(entries) == 1 and entries[0].is_dir():
search_dir = entries[0]
else:
break
if work_staging_dir.is_dir():
for f in work_staging_dir.iterdir():
f.unlink()
work_staging_dir.rmdir()
if len(entries) == 1 and entries[0].suffix.lower() == '.pdf':
print(f'Extracting images from {entries[0]} for {work_id}')
link_pdf(entries[0], collation_dir)
continue
if len(entries) == 0:
print(f'{work_id} contains no files? skipping')
continue
if all(entry.is_file() and entry.suffix.lower() in IMAGE_FILE_EXTENSIONS for entry in entries):
ordering = complete_prefix_number_ordering(entries)
if not ordering:
with_text = []
textless = []
for entry in entries:
if TEXTLESS_REGEX.search(entry.name):
textless.append(entry)
else:
with_text.append(entry)
if with_text and textless:
with_text_ordering = complete_prefix_number_ordering(with_text)
textless_ordering = complete_prefix_number_ordering(textless)
if with_text_ordering and textless_ordering:
ordering = with_text_ordering + textless_ordering
if ordering:
print(f'Symlinking image files for {work_id}')
link_ordered_files(ordering, collation_dir)
continue
print(f'Unable to deduce file structure for {work_id}, skipping')
if pages_collated == 0:
print(f'{work_id} contains no files? skipping')
elif pages_collated is None:
print(f'Unable to deduce file structure for {work_id}, skipping')
collation_staging_area.rmdir()
con.close()
def collate_from_paths(srcs, dest, start_index):
if len(srcs) == 1 and srcs[0].is_dir():
return collate_from_paths(ls_ignore(srcs[0]), dest, start_index)
if len(srcs) == 1 and srcs[0].suffix.lower() == '.pdf':
print(f'Extracting images from {srcs[0]}')
return link_pdf(srcs[0], dest, start_index)
if len(srcs) == 0:
return 0
with_text = []
textless = []
for src in srcs:
if TEXTLESS_REGEX.search(src.name):
textless.append(src)
else:
with_text.append(src)
if with_text and textless:
text_pages = collate_from_paths(with_text, dest, start_index)
if text_pages is None:
return None
textless_pages = collate_from_paths(textless, dest, start_index+text_pages)
if textless_pages is None:
return None
return text_pages + textless_pages
if all(src.is_file() and src.suffix.lower() in IMAGE_FILE_EXTENSIONS for src in srcs):
ordering = complete_prefix_number_ordering(srcs)
if ordering:
print(f'Symlinking image files: {ordering[0]}...')
link_ordered_files(ordering, dest, start_index)
return len(ordering)
else:
return None
return None
def self_and_parents(path):
return [path] + list(path.parents)
@ -375,15 +393,16 @@ def manual_collate(args):
if ordering is None:
ordering = entries
ordering.sort()
link_ordered_files(ordering, collation_dir, start_index=index)
link_ordered_files(ordering, collation_dir, index)
index += len(ordering)
elif path.suffix.lower() in IMAGE_FILE_EXTENSIONS:
link_ordered_files([path], collation_dir, start_index=index)
link_ordered_files([path], collation_dir, index)
index += 1
elif path.suffix.lower() == ".pdf":
link_pdf(path, collation_dir, start_index=index)
with fitz.open(path) as pdf:
index += pdf.page_count
pdf_page_count = link_pdf(path, collation_dir, index)
if pdf_page_count is None:
return
index += pdf_page_count
else:
print(f'Unknown file type {path}, stopping')
return