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Support transfering empty files to target host. Fixes #36725 (#45751)

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Matt Martz 2018-09-18 09:05:20 -05:00 • committed by GitHub
parent f8c98600a9
commit b6fcbfe813
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7 changed files with 39 additions and 8 deletions
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8
lib/ansible/plugins/connection/docker.py
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@ -246,9 +246,13 @@ class Connection(ConnectionBase):
# running containers, so we use docker exec to implement this
# Although docker version 1.8 and later provide support, the
# owner and group of the files are always set to root
args = self._build_exec_cmd([self._play_context.executable, "-c", "dd of=%s bs=%s" % (out_path, BUFSIZE)])
args = [to_bytes(i, errors='surrogate_or_strict') for i in args]
with open(to_bytes(in_path, errors='surrogate_or_strict'), 'rb') as in_file:
if not os.fstat(in_file.fileno()).st_size:
count = ' count=0'
else:
count = ''
args = self._build_exec_cmd([self._play_context.executable, "-c", "dd of=%s bs=%s%s" % (out_path, BUFSIZE, count)])
args = [to_bytes(i, errors='surrogate_or_strict') for i in args]
try:
p = subprocess.Popen(args, stdin=in_file,
stdout=subprocess.PIPE, stderr=subprocess.PIPE)