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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