| 1 | import sys, zlib |
| 2 | |
| 3 | def rf(p): |
| 4 | with open(p, "rb") as f: return f.read() |
| 5 | |
| 6 | def wf(p, b): |
| 7 | with open(p, "wb") as f: f.write(b) |
| 8 | |
| 9 | if len(sys.argv) != 4: |
| 10 | print("usage: py_ref compress|decompress|gzip|gunzip in out", file=sys.stderr) |
| 11 | sys.exit(2) |
| 12 | |
| 13 | mode, inp, outp = sys.argv[1], sys.argv[2], sys.argv[3] |
| 14 | data = rf(inp) |
| 15 | if mode == "compress": |
| 16 | wf(outp, zlib.compress(data)) |
| 17 | elif mode == "decompress": |
| 18 | wf(outp, zlib.decompress(data)) |
| 19 | elif mode == "gzip": |
| 20 | co = zlib.compressobj(level=6, wbits=16 + zlib.MAX_WBITS) |
| 21 | wf(outp, co.compress(data) + co.flush()) |
| 22 | elif mode == "gunzip": |
| 23 | wf(outp, zlib.decompress(data, 16 + zlib.MAX_WBITS)) |
| 24 | else: |
| 25 | print("unknown mode", file=sys.stderr) |
| 26 | sys.exit(2) |
| 27 | |
| 28 | |