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from __future__ import unicode_literals
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from .common import PostProcessor
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from ..utils import PostProcessingError
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import subprocess
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import shlex
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class ExecAfterDownloadPP(PostProcessor):
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def __init__(self, downloader=None, verboseOutput=None, commandString=None):
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self.verboseOutput = verboseOutput
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self.commandString = commandString
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def run(self, information):
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self.targetFile = information['filepath'].replace('\'', '\'\\\'\'') # Replace single quotes with '\''
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self.commandList = shlex.split(self.commandString)
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self.commandString = ''
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# Replace all instances of '{}' with the file name and convert argument list to single string.
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for index, arg in enumerate(self.commandList):
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if(arg == '{}'):
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self.commandString += '\'' + self.targetFile + '\' '
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else:
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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.
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self.commandString += '\'' + self.targetFile + '\''
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print("[exec] Executing command: " + self.commandString)
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self.retCode = subprocess.call(self.commandString, shell=True)
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if(self.retCode < 0):
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print("[exec] WARNING: Command exited with a negative return code, the process was killed externally. Your command may not of completed succesfully!")
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elif(self.verboseOutput):
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print("[exec] Command exited with return code: " + str(self.retCode))
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return None, information # by default, keep file and do nothing
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class PostProcessingExecError(PostProcessingError):
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pass
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