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allow filtering '--list-extractors' results

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with blacklist/whitelist syntax, e.g.

--list-extractors pixiv
--list-extractors pixiv:user pixiv:work
--list-extractors :search
This commit is contained in:
Mike Fährmann 2024-09-07 22:41:02 +02:00
parent 0db3c11ab0
commit 4da3347d18
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GPG Key ID: 5680CA389D365A88
4 changed files with 14 additions and 6 deletions
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3
docs/options.md
View File

@ -49,7 +49,8 @@
values for the given URLs
-e, --error-file FILE Add input URLs which returned an error to FILE
--list-modules Print a list of available extractor modules
--list-extractors Print a list of extractor classes with
--list-extractors CATEGORIES
Print a list of extractor classes with
description, (sub)category and example URL
--write-log FILE Write logging output to FILE
--write-unsupported FILE Write URLs, which get emitted by other

10
gallery_dl/__init__.py
View File

@ -202,12 +202,18 @@ def main():
extractor.modules.append("")
sys.stdout.write("\n".join(extractor.modules))
elif args.list_extractors:
elif args.list_extractors is not None:
write = sys.stdout.write
fmt = ("{}{}\nCategory: {} - Subcategory: {}"
"\nExample : {}\n\n").format
for extr in extractor.extractors():
extractors = extractor.extractors()
if args.list_extractors:
fltr = util.build_extractor_filter(
args.list_extractors, negate=False)
extractors = filter(fltr, extractors)
for extr in extractors:
write(fmt(
extr.__name__,
"\n" + extr.__doc__ if extr.__doc__ else "",

2
gallery_dl/option.py
View File

@ -344,7 +344,7 @@ def build_parser():
)
output.add_argument(
"--list-extractors",
dest="list_extractors", action="store_true",
dest="list_extractors", metavar="CATEGORIES", nargs="*",
help=("Print a list of extractor classes "
"with description, (sub)category and example URL"),
)

5
gallery_dl/util.py
View File

@ -760,8 +760,9 @@ def build_extractor_filter(categories, negate=True, special=None):
if catsub:
def test(extr):
for category, subcategory in catsub:
if category in (extr.category, extr.basecategory) and \
subcategory == extr.subcategory:
if subcategory == extr.subcategory and (
category == extr.category or
category == extr.basecategory):
return not negate
return negate
tests.append(test)