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[utils, etc] Kill child processes when yt-dl is killed 

* derived from PR #26592, closes #26592

Authored by: Unrud
This commit is contained in:
pukkandan 2021-01-09 17:56:12 +05:30 committed by dirkf
parent 811c480f7b
commit 0700fde640
8 changed files with 42 additions and 21 deletions
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3
youtube_dl/YoutubeDL.py
View File

@ -73,6 +73,7 @@ from .utils import (
PostProcessingError,
preferredencoding,
prepend_extension,
process_communicate_or_kill,
register_socks_protocols,
render_table,
replace_extension,
@ -2323,7 +2324,7 @@ class YoutubeDL(object):
['git', 'rev-parse', '--short', 'HEAD'],
stdout=subprocess.PIPE, stderr=subprocess.PIPE,
cwd=os.path.dirname(os.path.abspath(__file__)))
out, err = sp.communicate()
out, err = process_communicate_or_kill(sp)
out = out.decode().strip()
if re.match('[0-9a-f]+', out):
self._write_string('[debug] Git HEAD: ' + out + '\n')

3
youtube_dl/compat.py
View File

@ -2890,6 +2890,7 @@ else:
_terminal_size = collections.namedtuple('terminal_size', ['columns', 'lines'])
def compat_get_terminal_size(fallback=(80, 24)):
from .utils import process_communicate_or_kill
columns = compat_getenv('COLUMNS')
if columns:
columns = int(columns)
@ -2906,7 +2907,7 @@ else:
sp = subprocess.Popen(
['stty', 'size'],
stdout=subprocess.PIPE, stderr=subprocess.PIPE)
out, err = sp.communicate()
out, err = process_communicate_or_kill(sp)
_lines, _columns = map(int, out.split())
except Exception:
_columns, _lines = _terminal_size(*fallback)

16
youtube_dl/downloader/external.py
View File

@ -22,6 +22,7 @@ from ..utils import (
handle_youtubedl_headers,
check_executable,
is_outdated_version,
process_communicate_or_kill,
)
@ -104,7 +105,7 @@ class ExternalFD(FileDownloader):
p = subprocess.Popen(
cmd, stderr=subprocess.PIPE)
_, stderr = p.communicate()
_, stderr = process_communicate_or_kill(p)
if p.returncode != 0:
self.to_stderr(stderr.decode('utf-8', 'replace'))
return p.returncode
@ -141,7 +142,7 @@ class CurlFD(ExternalFD):
# curl writes the progress to stderr so don't capture it.
p = subprocess.Popen(cmd)
p.communicate()
process_communicate_or_kill(p)
return p.returncode
@ -336,14 +337,17 @@ class FFmpegFD(ExternalFD):
proc = subprocess.Popen(args, stdin=subprocess.PIPE, env=env)
try:
retval = proc.wait()
except KeyboardInterrupt:
# subprocces.run would send the SIGKILL signal to ffmpeg and the
except BaseException as e:
# subprocess.run would send the SIGKILL signal to ffmpeg and the
# mp4 file couldn't be played, but if we ask ffmpeg to quit it
# produces a file that is playable (this is mostly useful for live
# streams). Note that Windows is not affected and produces playable
# files (see https://github.com/ytdl-org/youtube-dl/issues/8300).
if sys.platform != 'win32':
proc.communicate(b'q')
if isinstance(e, KeyboardInterrupt) and sys.platform != 'win32':
process_communicate_or_kill(proc, b'q')
else:
proc.kill()
proc.wait()
raise
return retval

10
youtube_dl/downloader/rtmp.py
View File

@ -89,11 +89,13 @@ class RtmpFD(FileDownloader):
self.to_screen('')
cursor_in_new_line = True
self.to_screen('[rtmpdump] ' + line)
finally:
if not cursor_in_new_line:
self.to_screen('')
return proc.wait()
except BaseException: # Including KeyboardInterrupt
proc.kill()
proc.wait()
if not cursor_in_new_line:
self.to_screen('')
return proc.returncode
raise
url = info_dict['url']
player_url = info_dict.get('player_url')

3
youtube_dl/extractor/openload.py
View File

@ -16,6 +16,7 @@ from ..utils import (
ExtractorError,
get_exe_version,
is_outdated_version,
process_communicate_or_kill,
std_headers,
)
@ -226,7 +227,7 @@ class PhantomJSwrapper(object):
self.exe, '--ssl-protocol=any',
self._TMP_FILES['script'].name
], stdout=subprocess.PIPE, stderr=subprocess.PIPE)
out, err = p.communicate()
out, err = process_communicate_or_kill(p)
if p.returncode != 0:
raise ExtractorError(
'Executing JS failed\n:' + encodeArgument(err))

5
youtube_dl/postprocessor/embedthumbnail.py
View File

@ -13,8 +13,9 @@ from ..utils import (
encodeFilename,
PostProcessingError,
prepend_extension,
process_communicate_or_kill,
replace_extension,
shell_quote
shell_quote,
)
@ -109,7 +110,7 @@ class EmbedThumbnailPP(FFmpegPostProcessor):
self._downloader.to_screen('[debug] AtomicParsley command line: %s' % shell_quote(cmd))
p = subprocess.Popen(cmd, stdout=subprocess.PIPE, stderr=subprocess.PIPE)
stdout, stderr = p.communicate()
stdout, stderr = process_communicate_or_kill(p)
if p.returncode != 0:
msg = stderr.decode('utf-8', 'replace').strip()

5
youtube_dl/postprocessor/ffmpeg.py
View File

@ -16,6 +16,7 @@ from ..utils import (
is_outdated_version,
PostProcessingError,
prepend_extension,
process_communicate_or_kill,
shell_quote,
subtitles_filename,
dfxp2srt,
@ -180,7 +181,7 @@ class FFmpegPostProcessor(PostProcessor):
handle = subprocess.Popen(
cmd, stderr=subprocess.PIPE,
stdout=subprocess.PIPE, stdin=subprocess.PIPE)
stdout_data, stderr_data = handle.communicate()
stdout_data, stderr_data = process_communicate_or_kill(handle)
expected_ret = 0 if self.probe_available else 1
if handle.wait() != expected_ret:
return None
@ -228,7 +229,7 @@ class FFmpegPostProcessor(PostProcessor):
if self._downloader.params.get('verbose', False):
self._downloader.to_screen('[debug] ffmpeg command line: %s' % shell_quote(cmd))
p = subprocess.Popen(cmd, stdout=subprocess.PIPE, stderr=subprocess.PIPE, stdin=subprocess.PIPE)
stdout, stderr = p.communicate()
stdout, stderr = process_communicate_or_kill(p)
if p.returncode != 0:
stderr = stderr.decode('utf-8', 'replace')
msgs = stderr.strip().split('\n')

18
youtube_dl/utils.py
View File

@ -2212,6 +2212,15 @@ def unescapeHTML(s):
r'&([^&;]+;)', lambda m: _htmlentity_transform(m.group(1)), s)
def process_communicate_or_kill(p, *args, **kwargs):
try:
return p.communicate(*args, **kwargs)
except BaseException: # Including KeyboardInterrupt
p.kill()
p.wait()
raise
def get_subprocess_encoding():
if sys.platform == 'win32' and sys.getwindowsversion()[0] >= 5:
# For subprocess calls, encode with locale encoding
@ -3788,7 +3797,8 @@ def check_executable(exe, args=[]):
""" Checks if the given binary is installed somewhere in PATH, and returns its name.
args can be a list of arguments for a short output (like -version) """
try:
subprocess.Popen([exe] + args, stdout=subprocess.PIPE, stderr=subprocess.PIPE).communicate()
process_communicate_or_kill(subprocess.Popen(
[exe] + args, stdout=subprocess.PIPE, stderr=subprocess.PIPE))
except OSError:
return False
return exe
@ -3802,10 +3812,10 @@ def get_exe_version(exe, args=['--version'],
# STDIN should be redirected too. On UNIX-like systems, ffmpeg triggers
# SIGTTOU if youtube-dl is run in the background.
# See https://github.com/ytdl-org/youtube-dl/issues/955#issuecomment-209789656
out, _ = subprocess.Popen(
out, _ = process_communicate_or_kill(subprocess.Popen(
[encodeArgument(exe)] + args,
stdin=subprocess.PIPE,
stdout=subprocess.PIPE, stderr=subprocess.STDOUT).communicate()
stdout=subprocess.PIPE, stderr=subprocess.STDOUT))
except OSError:
return False
if isinstance(out, bytes): # Python 2.x
@ -5744,7 +5754,7 @@ def write_xattr(path, key, value):
cmd, stdout=subprocess.PIPE, stderr=subprocess.PIPE, stdin=subprocess.PIPE)
except EnvironmentError as e:
raise XAttrMetadataError(e.errno, e.strerror)
stdout, stderr = p.communicate()
stdout, stderr = process_communicate_or_kill(p)
stderr = stderr.decode('utf-8', 'replace')
if p.returncode != 0:
raise XAttrMetadataError(p.returncode, stderr)