youtube-dl/youtube_dl/postprocessor/execafterdownload.py

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from __future__ import unicode_literals
from .common import PostProcessor
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from ..utils import PostProcessingError
import subprocess
import shlex
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class ExecAfterDownloadPP(PostProcessor):
def __init__(self, downloader=None, verboseOutput=None, commandString=None):
self.verboseOutput = verboseOutput
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self.commandString = commandString
def run(self, information):
self.targetFile = information['filepath'].replace('\'', '\'\\\'\'') # Replace single quotes with '\''
self.commandList = shlex.split(self.commandString)
self.commandString = ''
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# Replace all instances of '{}' with the file name and convert argument list to single string.
for index, arg in enumerate(self.commandList):
if(arg == '{}'):
self.commandString += '\'' + self.targetFile + '\' '
else:
self.commandString += arg + ' '
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if self.targetFile not in self.commandString: # Assume user wants the file appended to the end of the command if no {}'s were given.
self.commandString += '\'' + self.targetFile + '\''
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print("[exec] Executing command: " + self.commandString)
self.retCode = subprocess.call(self.commandString, shell=True)
if(self.retCode < 0):
print("[exec] WARNING: Command exited with a negative return code, the process was killed externally. Your command may not of completed succesfully!")
elif(self.verboseOutput):
print("[exec] Command exited with return code: " + str(self.retCode))
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return None, information # by default, keep file and do nothing
class PostProcessingExecError(PostProcessingError):
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pass