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@@ -466,6 +466,9 @@ def Compress(indata, algo, with_header=True):
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This requires 'lz4' and 'lzma_alone' tools. It also requires an output
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directory to be previously set up, by calling PrepareOutputDir().
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+ Care is taken to use unique temporary files so that this function can be
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+ called from multiple threads.
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+
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Args:
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indata: Input data to compress
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algo: Algorithm to use ('none', 'gzip', 'lz4' or 'lzma')
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@@ -475,14 +478,16 @@ def Compress(indata, algo, with_header=True):
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"""
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if algo == 'none':
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return indata
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- fname = GetOutputFilename('%s.comp.tmp' % algo)
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+ fname = tempfile.NamedTemporaryFile(prefix='%s.comp.tmp' % algo,
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+ dir=outdir).name
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WriteFile(fname, indata)
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if algo == 'lz4':
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data = Run('lz4', '--no-frame-crc', '-B4', '-5', '-c', fname,
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binary=True)
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# cbfstool uses a very old version of lzma
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elif algo == 'lzma':
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- outfname = GetOutputFilename('%s.comp.otmp' % algo)
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+ outfname = tempfile.NamedTemporaryFile(prefix='%s.comp.otmp' % algo,
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+ dir=outdir).name
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Run('lzma_alone', 'e', fname, outfname, '-lc1', '-lp0', '-pb0', '-d8')
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data = ReadFile(outfname)
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elif algo == 'gzip':
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