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# -*- coding: UTF-8 -*-
# Copyright 2013 Red Hat, Inc.
# Part of clufter project
# Licensed under GPLv2 (a copy included | http://gnu.org/licenses/gpl-2.0.txt)
from os.path import pardir
from subprocess import Popen, PIPE
import logging
from clufter.filter import Filter, FilterError
from clufter.utils import which
log = logging.getLogger(__name__)
# XXX
CCS_FLATTEN = which('ccs_flatten', pardir) or ''
@Filter.deco('ccs', 'ccsflat')
def ccs2ccsflat(self, in_obj, verify=False):
# XXX currently ccs_flatten does not handle stdin (tempfile.mkstemp?)
if verify:
in_obj.verify()
in_file = in_obj('file')
try:
command = [CCS_FLATTEN, in_file]
log.info("running `{0}'".format(' '.join(command)))
proc = Popen(command, stdout=PIPE, stderr=PIPE)
except OSError:
raise FilterError(self, "ccs_flatten binary seems unavailable")
out, err = proc.communicate()
if proc.returncode != 0:
raise FilterError(self, "ccs_flatten exit code: {0}\n\t{1}",
proc.returncode, err)
elif out == '':
# "No resource trees defined; nothing to do"
with file(in_file, 'r') as f:
out = f.read()
return ('bytestring', out)
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