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Log to an external logger (fixes #1810)

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Sadly applications using youtube-dl's python sources can't directly
access it's log stream. It's pretty much limited to stdout and stderr
only.

It should log to logging.Logger instance passed to YoutubeDL's params
dictionary.
This commit is contained in:
Itay Brandes 2013-11-23 10:22:18 +02:00
parent a87b0615aa
commit 43afe28588
1 changed files with 11 additions and 5 deletions
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16
youtube_dl/YoutubeDL.py
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@ -97,6 +97,7 @@ class YoutubeDL(object):
playlistend: Playlist item to end at.
matchtitle: Download only matching titles.
rejecttitle: Reject downloads for matching titles.
logger: Log messages to a logging.Logger instance.
logtostderr: Log messages to stderr instead of stdout.
writedescription: Write the video description to a .description file
writeinfojson: Write the video description to a .info.json file
@ -192,7 +193,9 @@ class YoutubeDL(object):
def to_screen(self, message, skip_eol=False):
"""Print message to stdout if not in quiet mode."""
if not self.params.get('quiet', False):
if self.params.get('logger', False):
self.params['logger'].debug(message)
elif not self.params.get('quiet', False):
terminator = [u'\n', u''][skip_eol]
output = message + terminator
write_string(output, self._screen_file)
@ -200,10 +203,13 @@ class YoutubeDL(object):
def to_stderr(self, message):
"""Print message to stderr."""
assert type(message) == type(u'')
output = message + u'\n'
if 'b' in getattr(self._screen_file, 'mode', '') or sys.version_info[0] < 3: # Python 2 lies about the mode of sys.stdout/sys.stderr
output = output.encode(preferredencoding())
sys.stderr.write(output)
if self.params.get('logger', False):
self.params['logger'].error(message)
else:
output = message + u'\n'
if 'b' in getattr(self._screen_file, 'mode', '') or sys.version_info[0] < 3: # Python 2 lies about the mode of sys.stdout/sys.stderr
output = output.encode(preferredencoding())
sys.stderr.write(output)
def to_console_title(self, message):
if not self.params.get('consoletitle', False):