Make outtmpl more robust and catch errors early

pull/401/head
pukkandan 3 years ago
parent 324ad82006
commit 76a264ac9e
No known key found for this signature in database
GPG Key ID: 0F00D95A001F4698

@ -669,6 +669,9 @@ class TestYoutubeDL(unittest.TestCase):
params['outtmpl'] = tmpl
ydl = YoutubeDL(params)
ydl._num_downloads = 1
err = ydl.validate_outtmpl(tmpl)
if err:
raise err
outtmpl, tmpl_dict = ydl.prepare_outtmpl(tmpl, self.outtmpl_info)
return outtmpl % tmpl_dict
@ -686,6 +689,9 @@ class TestYoutubeDL(unittest.TestCase):
self.assertEqual(out('%(invalid@tmpl|def)s', outtmpl_na_placeholder='none'), 'none')
self.assertEqual(out('%()s'), 'NA')
self.assertEqual(out('%s'), '%s')
self.assertEqual(out('%d'), '%d')
self.assertRaises(ValueError, out, '%')
self.assertRaises(ValueError, out, '%(title)')
NA_TEST_OUTTMPL = '%(uploader_date)s-%(width)d-%(x|def)s-%(id)s.%(ext)s'
self.assertEqual(out(NA_TEST_OUTTMPL), 'NA-NA-def-1234.mp4')
@ -705,6 +711,8 @@ class TestYoutubeDL(unittest.TestCase):
self.assertEqual(out(FMT_TEST_OUTTMPL % ' 0 6d'), ' 01080.mp4')
self.assertEqual(out('%(id)d'), '1234')
self.assertEqual(out('%(height)c'), '1')
self.assertEqual(out('%(ext)c'), 'm')
self.assertEqual(out('%(id)d %(id)r'), "1234 '1234'")
self.assertEqual(out('%(ext)s-%(ext|def)d'), 'mp4-def')
self.assertEqual(out('%(width|0)04d'), '0000')
@ -715,6 +723,7 @@ class TestYoutubeDL(unittest.TestCase):
self.assertEqual(out('%(id+1-height+3)05d'), '00158')
self.assertEqual(out('%(width+100)05d'), 'NA')
self.assertEqual(out('%(formats.0)s'), str(FORMATS[0]))
self.assertEqual(out('%(height.0)03d'), '001')
self.assertEqual(out('%(formats.-1.id)s'), str(FORMATS[-1]['id']))
self.assertEqual(out('%(formats.3)s'), 'NA')
self.assertEqual(out('%(formats.:2:-1)r'), repr(FORMATS[:2:-1]))

@ -813,6 +813,19 @@ class YoutubeDL(object):
'Put from __future__ import unicode_literals at the top of your code file or consider switching to Python 3.x.')
return outtmpl_dict
@staticmethod
def validate_outtmpl(tmpl):
''' @return None or Exception object '''
try:
re.sub(
STR_FORMAT_RE.format(''),
lambda mobj: ('%' if not mobj.group('has_key') else '') + mobj.group(0),
tmpl
) % collections.defaultdict(int)
return None
except ValueError as err:
return err
def prepare_outtmpl(self, outtmpl, info_dict, sanitize=None):
""" Make the template and info_dict suitable for substitution (outtmpl % info_dict)"""
info_dict = dict(info_dict)
@ -852,10 +865,12 @@ class YoutubeDL(object):
}
tmpl_dict = {}
get_key = lambda k: traverse_obj(
info_dict, k.split('.'), is_user_input=True, traverse_string=True)
def get_value(mdict):
# Object traversal
fields = mdict['fields'].split('.')
value = traverse_obj(info_dict, fields)
value = get_key(mdict['fields'])
# Negative
if mdict['negate']:
value = float_or_none(value)
@ -872,7 +887,7 @@ class YoutubeDL(object):
item, multiplier = (item[1:], -1) if item[0] == '-' else (item, 1)
offset = float_or_none(item)
if offset is None:
offset = float_or_none(traverse_obj(info_dict, item.split('.')))
offset = float_or_none(get_key(item))
try:
value = operator(value, multiplier * offset)
except (TypeError, ZeroDivisionError):
@ -906,7 +921,13 @@ class YoutubeDL(object):
value = default if value is None else value
key += '\0%s' % fmt
if fmt[-1] not in 'crs': # numeric
if fmt == 'c':
value = compat_str(value)
if value is None:
value, fmt = default, 's'
else:
value = value[0]
elif fmt[-1] not in 'rs': # numeric
value = float_or_none(value)
if value is None:
value, fmt = default, 's'

@ -24,6 +24,7 @@ from .utils import (
DateRange,
decodeOption,
DownloadError,
error_to_compat_str,
ExistingVideoReached,
expand_path,
match_filter_func,
@ -307,6 +308,16 @@ def _real_main(argv=None):
else:
_unused_compat_opt('filename')
def validate_outtmpl(tmpl, msg):
err = YoutubeDL.validate_outtmpl(tmpl)
if err:
parser.error('invalid %s %r: %s' % (msg, tmpl, error_to_compat_str(err)))
for k, tmpl in opts.outtmpl.items():
validate_outtmpl(tmpl, '%s output template' % k)
for tmpl in opts.forceprint:
validate_outtmpl(tmpl, 'print template')
if opts.extractaudio and not opts.keepvideo and opts.format is None:
opts.format = 'bestaudio/best'

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