[YoutubeDL] Fix out of range --playlist-items for iterable playlists and reduce code duplication (closes #14425)

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Sergey M․ 2017-10-06 23:34:46 +07:00
parent 6be08ce602
commit 7e85e8729f
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@ -911,12 +911,22 @@ class YoutubeDL(object):
playlistitems = iter_playlistitems(playlistitems_str) playlistitems = iter_playlistitems(playlistitems_str)
ie_entries = ie_result['entries'] ie_entries = ie_result['entries']
def make_playlistitems_entries(list_ie_entries):
num_entries = len(list_ie_entries)
return [
list_ie_entries[i - 1] for i in playlistitems
if -num_entries <= i - 1 < num_entries]
def report_download(num_entries):
self.to_screen(
'[%s] playlist %s: Downloading %d videos' %
(ie_result['extractor'], playlist, num_entries))
if isinstance(ie_entries, list): if isinstance(ie_entries, list):
n_all_entries = len(ie_entries) n_all_entries = len(ie_entries)
if playlistitems: if playlistitems:
entries = [ entries = make_playlistitems_entries(ie_entries)
ie_entries[i - 1] for i in playlistitems
if -n_all_entries <= i - 1 < n_all_entries]
else: else:
entries = ie_entries[playliststart:playlistend] entries = ie_entries[playliststart:playlistend]
n_entries = len(entries) n_entries = len(entries)
@ -934,20 +944,15 @@ class YoutubeDL(object):
entries = ie_entries.getslice( entries = ie_entries.getslice(
playliststart, playlistend) playliststart, playlistend)
n_entries = len(entries) n_entries = len(entries)
self.to_screen( report_download(n_entries)
'[%s] playlist %s: Downloading %d videos' %
(ie_result['extractor'], playlist, n_entries))
else: # iterable else: # iterable
if playlistitems: if playlistitems:
entry_list = list(ie_entries) entries = make_playlistitems_entries(list(ie_entries))
entries = [entry_list[i - 1] for i in playlistitems]
else: else:
entries = list(itertools.islice( entries = list(itertools.islice(
ie_entries, playliststart, playlistend)) ie_entries, playliststart, playlistend))
n_entries = len(entries) n_entries = len(entries)
self.to_screen( report_download(n_entries)
'[%s] playlist %s: Downloading %d videos' %
(ie_result['extractor'], playlist, n_entries))
if self.params.get('playlistreverse', False): if self.params.get('playlistreverse', False):
entries = entries[::-1] entries = entries[::-1]