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Revision 649, 0.6 kB
(checked in by hodgestar, 3 years ago)
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Tiny utility for tapping into stdout occassionally.
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Property svn:mime-type set to
text/python-source
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Property svn:eol-style set to
native
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| 1 | #!/usr/bin/env python |
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| 2 | |
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| 3 | import signal |
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| 4 | import sys |
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| 5 | |
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| 6 | TAP_ON = False |
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| 7 | CHUNK_SIZE = 10 |
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| 8 | |
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| 9 | def tap_handler(signo, frame): |
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| 10 | global TAP_ON |
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| 11 | TAP_ON = not TAP_ON |
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| 12 | |
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| 13 | def main(args): |
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| 14 | if len(args) < 2: |
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| 15 | print "Usage: stdtap.py <file>" |
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| 16 | return 1 |
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| 17 | |
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| 18 | f = open(args[1],"w") |
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| 19 | filewrite = f.write |
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| 20 | fileflush = f.flush |
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| 21 | |
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| 22 | signal.signal(signal.SIGHUP, tap_handler) |
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| 23 | write = sys.stdout.write |
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| 24 | read = sys.stdin.read |
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| 25 | |
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| 26 | while True: |
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| 27 | buf = read(CHUNK_SIZE) |
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| 28 | write(buf) |
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| 29 | if TAP_ON: |
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| 30 | filewrite(buf) |
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| 31 | fileflush() |
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| 32 | |
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| 33 | if __name__ == "__main__": |
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| 34 | sys.exit(main(sys.argv)) |
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