[bf13d27] | 1 | # |
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| 2 | # RTEMS Tools Project (http://www.rtems.org/) |
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| 3 | # Copyright 2010-2012 Chris Johns (chrisj@rtems.org) |
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| 4 | # All rights reserved. |
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| 5 | # |
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| 6 | # This file is part of the RTEMS Tools package in 'rtems-testing'. |
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| 7 | # |
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| 8 | # Permission to use, copy, modify, and/or distribute this software for any |
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| 9 | # purpose with or without fee is hereby granted, provided that the above |
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| 10 | # copyright notice and this permission notice appear in all copies. |
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| 11 | # |
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| 12 | # THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES |
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| 13 | # WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF |
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| 14 | # MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR |
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| 15 | # ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES |
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| 16 | # WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN |
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| 17 | # ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF |
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| 18 | # OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. |
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| 19 | |
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| 20 | # |
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| 21 | # Log output to stdout and/or a file. |
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| 22 | # |
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| 23 | |
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| 24 | import os |
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| 25 | import sys |
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| 26 | |
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| 27 | import error |
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| 28 | |
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| 29 | # |
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| 30 | # A global log. |
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| 31 | # |
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| 32 | default = None |
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| 33 | |
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| 34 | def set_default_once(log): |
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| 35 | if default is None: |
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| 36 | default = log |
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| 37 | |
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| 38 | def output(text = os.linesep, log = None): |
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| 39 | """Output the text to a log if provided else send it to stdout.""" |
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| 40 | if text is None: |
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| 41 | text = os.linesep |
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| 42 | if type(text) is list: |
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| 43 | _text = '' |
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| 44 | for l in text: |
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| 45 | _text += l + os.linesep |
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| 46 | text = _text |
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| 47 | if log: |
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| 48 | log.output(text) |
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| 49 | elif default is not None: |
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| 50 | default.output(text) |
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| 51 | else: |
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| 52 | for l in text.replace(chr(13), '').splitlines(): |
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| 53 | print l |
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| 54 | |
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| 55 | def flush(log = None): |
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| 56 | if log: |
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| 57 | log.flush() |
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| 58 | elif default is not None: |
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| 59 | default.flush() |
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| 60 | |
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| 61 | class log: |
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| 62 | """Log output to stdout or a file.""" |
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| 63 | def __init__(self, streams = None): |
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| 64 | self.fhs = [None, None] |
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| 65 | if streams: |
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| 66 | for s in streams: |
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| 67 | if s == 'stdout': |
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| 68 | self.fhs[0] = sys.stdout |
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| 69 | elif s == 'stderr': |
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| 70 | self.fhs[1] = sys.stderr |
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| 71 | else: |
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| 72 | try: |
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| 73 | self.fhs.append(file(s, 'w')) |
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| 74 | except IOError, ioe: |
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| 75 | raise error.general("creating log file '" + s + \ |
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| 76 | "': " + str(ioe)) |
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| 77 | |
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| 78 | def __del__(self): |
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| 79 | for f in range(2, len(self.fhs)): |
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| 80 | self.fhs[f].close() |
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| 81 | |
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| 82 | def has_stdout(self): |
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| 83 | return self.fhs[0] is not None |
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| 84 | |
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| 85 | def has_stderr(self): |
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| 86 | return self.fhs[1] is not None |
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| 87 | |
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| 88 | def output(self, text): |
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| 89 | """Output the text message to all the logs.""" |
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| 90 | # Reformat the text to have local line types. |
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| 91 | out = '' |
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| 92 | for l in text.replace(chr(13), '').splitlines(): |
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| 93 | out += l + os.linesep |
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| 94 | for f in range(0, len(self.fhs)): |
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| 95 | if self.fhs[f] is not None: |
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| 96 | self.fhs[f].write(out) |
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| 97 | |
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| 98 | def flush(self): |
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| 99 | """Flush the output.""" |
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| 100 | for f in range(0, len(self.fhs)): |
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| 101 | if self.fhs[f] is not None: |
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| 102 | self.fhs[f].flush() |
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| 103 | |
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| 104 | if __name__ == "__main__": |
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| 105 | l = log(['stdout', 'log.txt']) |
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| 106 | for i in range(0, 10): |
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| 107 | l.output('hello world: %d\n' % (i)) |
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| 108 | l.output('hello world CRLF\r\n') |
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| 109 | l.output('hello world NONE') |
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| 110 | l.flush() |
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| 111 | del l |
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