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#
# Uncompress a file generated via atrace -z
#
# Usage: python atrace-uncompress.py infile > outfile
#
import sys, zlib
def main():
if len(sys.argv) != 2:
print >> sys.stderr, ('Usage: %s inputfile' % sys.argv[0])
sys.exit(1)
infile = open(sys.argv[1], "rb")
out = infile.read()
parts = out.split('\nTRACE:', 1)
data = ''.join(parts[1])
# Remove CR characters
if data.startswith('\r\n'):
data = data.replace('\r\n', '\n')
# Skip the initial newline.
data = data[1:]
if not data:
print >> sys.stderr, ('No trace data found')
sys.exit(1)
out = zlib.decompress(data)
print(out)
if __name__ == '__main__':
main()
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