def cat_file_to_cmd(file, command, ignore_status=0, return_output=False):
"""
equivalent to 'cat file | command' but knows to use
zcat or bzcat if appropriate
"""
if not os.path.isfile(file):
raise NameError('invalid file %s to cat to command %s' %
(file, command))
if return_output:
run_cmd = utils.system_output
else:
run_cmd = utils.system
if magic.guess_type(file) == 'application/x-bzip2':
if base_packages.has_pbzip2():
cat = 'pbzip2 -d -c'
else:
cat = 'bzcat'
elif magic.guess_type(file) == 'application/x-gzip':
cat = 'zcat'
elif magic.guess_type(file) == 'application/x-xz':
cat = 'xzcat'
else:
cat = 'cat'
return run_cmd('%s %s | %s' % (cat, file, command),
ignore_status=ignore_status)
def cat_file_to_cmd(file, command, ignore_status=0, return_output=False):
"""
equivalent to 'cat file | command' but knows to use
zcat or bzcat if appropriate
"""
if not os.path.isfile(file):
raise NameError('invalid file %s to cat to command %s'
% (file, command))
if return_output:
run_cmd = utils.system_output
else:
run_cmd = utils.system
if magic.guess_type(file) == 'application/x-bzip2':
if base_packages.has_pbzip2():
cat = 'pbzip2 -d -c'
else:
cat = 'bzcat'
elif magic.guess_type(file) == 'application/x-gzip':
cat = 'zcat'
elif magic.guess_type(file) == 'application/x-xz':
cat = 'xzcat'
else:
cat = 'cat'
return run_cmd('%s %s | %s' % (cat, file, command),
ignore_status=ignore_status)