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import os
import tempfile
from subprocess import Popen, PIPE
class Fix(object):
def transform(self, string):
raise NotImplementedError
class CocciFix(Fix):
def __init__(self, filename):
self.filename = filename
def get_script_path(self):
return os.path.join('fixes', self.filename)
def transform(self, string):
# spatch seems to require the input and output to be actual files,
# rather than stdin/stdout.
(src_hn, src_path) = tempfile.mkstemp(suffix="-%s.in.c" % self.filename)
#print (src_hn, src_path)
(dst_hn, dst_path) = tempfile.mkstemp(suffix="-%s.out.c" % self.filename)
#print (dst_hn, dst_path)
os.write(src_hn, string)
p = Popen(['spatch', '-sp_file', self.get_script_path(), src_path, '-o', dst_path], stdout=PIPE, stderr=PIPE)
p.wait()
string = open(dst_path, 'r').read()
os.close(src_hn)
os.close(dst_hn)
return string
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