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from __future__ import unicode_literals
import subprocess
from .common import PostProcessor
from ..compat import compat_shlex_quote
from ..utils import (
encodeArgument,
PostProcessingError,
variadic,
)
class ExecPP(PostProcessor):
def __init__(self, downloader, exec_cmd):
PostProcessor.__init__(self, downloader)
self.exec_cmd = variadic(exec_cmd)
def parse_cmd(self, cmd, info):
tmpl, tmpl_dict = self._downloader.prepare_outtmpl(cmd, info)
if tmpl_dict: # if there are no replacements, tmpl_dict = {}
return self._downloader.escape_outtmpl(tmpl) % tmpl_dict
# If no replacements are found, replace {} for backard compatibility
if '{}' not in cmd:
cmd += ' {}'
return cmd.replace('{}', compat_shlex_quote(
info.get('filepath') or info['_filename']))
def run(self, info):
for tmpl in self.exec_cmd:
cmd = self.parse_cmd(tmpl, info)
self.to_screen('Executing command: %s' % cmd)
retCode = subprocess.call(encodeArgument(cmd), shell=True)
if retCode != 0:
raise PostProcessingError('Command returned error code %d' % retCode)
return [], info
class ExecAfterDownloadPP(ExecPP): # for backward compatibility
pass
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