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Add a workaround for terminals without bidi support (Fixes #1912)

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This commit is contained in:
Philipp Hagemeister 2013-12-09 04:08:51 +01:00
parent ffe62508e4
commit 0783b09b92
2 changed files with 59 additions and 14 deletions
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69
youtube_dl/YoutubeDL.py
View File

@ -133,6 +133,8 @@ class YoutubeDL(object):
nocheckcertificate:Do not verify SSL certificates
proxy: URL of the proxy server to use
socket_timeout: Time to wait for unresponsive hosts, in seconds
bidi_workaround: Work around buggy terminals without bidirectional text
support, using fridibi
The following parameters are not used by YoutubeDL itself, they are used by
the FileDownloader:
@ -156,8 +158,45 @@ class YoutubeDL(object):
self._download_retcode = 0
self._num_downloads = 0
self._screen_file = [sys.stdout, sys.stderr][params.get('logtostderr', False)]
self._err_file = sys.stderr
self.params = {} if params is None else params
# Pipe messsages through fribidi
if params.get('bidi_workaround', False):
# fribidi does not support ungetting, so force newlines
params['progress_with_newline'] = True
for fid in ['_screen_file', '_err_file']:
class FribidiOut(object):
def __init__(self, outfile, errfile):
self.outfile = outfile
self.process = subprocess.Popen(
['fribidi'],
stdin=subprocess.PIPE,
stdout=outfile,
stderr=errfile)
def write(self, s):
res = self.process.stdin.write(s)
self.flush()
return res
def flush(self):
return self.process.stdin.flush()
def isatty(self):
return self.outfile.isatty()
try:
vout = FribidiOut(getattr(self, fid), self._err_file)
setattr(self, fid, vout)
except OSError as ose:
if ose.errno == 2:
self.report_warning(u'Could not find fribidi executable, ignoring --bidi-workaround . Make sure that fribidi is an executable file in one of the directories in your $PATH.')
break
else:
raise
if (sys.version_info >= (3,) and sys.platform != 'win32' and
sys.getfilesystemencoding() in ['ascii', 'ANSI_X3.4-1968']
and not params['restrictfilenames']):
@ -206,10 +245,14 @@ class YoutubeDL(object):
pp.set_downloader(self)
def to_screen(self, message, skip_eol=False):
"""Print message to stdout if not in quiet mode."""
return self.to_stdout(message, skip_eol, check_quiet=True)
def to_stdout(self, message, skip_eol=False, check_quiet=False):
"""Print message to stdout if not in quiet mode."""
if self.params.get('logger'):
self.params['logger'].debug(message)
elif not self.params.get('quiet', False):
elif not check_quiet or not self.params.get('quiet', False):
terminator = [u'\n', u''][skip_eol]
output = message + terminator
write_string(output, self._screen_file)
@ -221,9 +264,7 @@ class YoutubeDL(object):
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)
write_string(output, self._err_file)
def to_console_title(self, message):
if not self.params.get('consoletitle', False):
@ -294,7 +335,7 @@ class YoutubeDL(object):
Print the message to stderr, it will be prefixed with 'WARNING:'
If stderr is a tty file the 'WARNING:' will be colored
'''
if sys.stderr.isatty() and os.name != 'nt':
if self._err_file.isatty() and os.name != 'nt':
_msg_header = u'\033[0;33mWARNING:\033[0m'
else:
_msg_header = u'WARNING:'
@ -306,7 +347,7 @@ class YoutubeDL(object):
Do the same as trouble, but prefixes the message with 'ERROR:', colored
in red if stderr is a tty file.
'''
if sys.stderr.isatty() and os.name != 'nt':
if self._err_file.isatty() and os.name != 'nt':
_msg_header = u'\033[0;31mERROR:\033[0m'
else:
_msg_header = u'ERROR:'
@ -695,22 +736,22 @@ class YoutubeDL(object):
# Forced printings
if self.params.get('forcetitle', False):
compat_print(info_dict['fulltitle'])
self.to_stdout(info_dict['fulltitle'])
if self.params.get('forceid', False):
compat_print(info_dict['id'])
self.to_stdout(info_dict['id'])
if self.params.get('forceurl', False):
# For RTMP URLs, also include the playpath
compat_print(info_dict['url'] + info_dict.get('play_path', u''))
self.to_stdout(info_dict['url'] + info_dict.get('play_path', u''))
if self.params.get('forcethumbnail', False) and info_dict.get('thumbnail') is not None:
compat_print(info_dict['thumbnail'])
self.to_stdout(info_dict['thumbnail'])
if self.params.get('forcedescription', False) and info_dict.get('description') is not None:
compat_print(info_dict['description'])
self.to_stdout(info_dict['description'])
if self.params.get('forcefilename', False) and filename is not None:
compat_print(filename)
self.to_stdout(filename)
if self.params.get('forceformat', False):
compat_print(info_dict['format'])
self.to_stdout(info_dict['format'])
if self.params.get('forcejson', False):
compat_print(json.dumps(info_dict))
self.to_stdout(json.dumps(info_dict))
# Do nothing else if in simulate mode
if self.params.get('simulate', False):

4
youtube_dl/__init__.py
View File

@ -204,6 +204,9 @@ def parseOpts(overrideArguments=None):
general.add_option(
'--socket-timeout', dest='socket_timeout',
type=float, default=None, help=optparse.SUPPRESS_HELP)
general.add_option(
'--bidi-workaround', dest='bidi_workaround', action='store_true',
help=u'Work around terminals that lack bidirectional text support. Requires fribidi executable in PATH')
selection.add_option('--playlist-start',
@ -684,6 +687,7 @@ def _real_main(argv=None):
'nocheckcertificate': opts.no_check_certificate,
'proxy': opts.proxy,
'socket_timeout': opts.socket_timeout,
'bidi_workaround': opts.bidi_workaround,
}
with YoutubeDL(ydl_opts) as ydl: