Mercurial > hgrepos > DevTools > mercurial-extensions

annotate tests/lib-stat.py @ 372:79192d0078dc

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Provide a "pats" (patterns) argument to _do_restore_timestamps() to be used for FILE parameters given on the command line. "pats" are used for filtering too. It could be implemented by giving an intersectmater to the given matcher parameter.
author Franz Glasner <fzglas.hg@dom66.de>
date Tue, 05 Mar 2019 16:23:40 +0100
parents 7ec353866f70
children 379050873141
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1 """Cross-platform file modification check.
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2
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3 This is because the stat(1) utility has incompatible cross-platform usage.
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4
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5 Usage: lib-stat.py [ OPTIONS ] FILE ...
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6
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7 Options:
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8
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9 -c TS, --check=TS Assert that the given timestamp TS matches the given
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10 FILE's modtime
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11 -d TS, --differs=TS Assert that the given timestamp TS differs from the
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12 given FILE's modtime
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13
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14 If no option is given print the modification time for each FILE to stdout.
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15
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16 """
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17
273
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18 from __future__ import absolute_import, print_function
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19
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20
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21 import datetime
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22 import getopt
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23 import os
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24 import sys
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25
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26
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27 class FloatTimesInStat(object):
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28 """Context manager to ensure that stat returns float values.
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29
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30 For 3.7 <= Mercurial < 4.6: Mercurial calls :func:`os.stat_float_times`
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31 for `stat` and friends to return :class:`int` values.
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32
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33 Temporarily fix this.
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34
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35 """
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36
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37 __slots__ = ("_do_reset",)
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38
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39 def __init__(self):
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40 self._do_reset = False
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41
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42 def __enter__(self):
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43 if not os.stat_float_times():
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44 os.stat_float_times(True)
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45 self._do_reset = True
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46 return self
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47
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48 def __exit__(self, *args):
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49 if self._do_reset:
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50 os.stat_float_times(False)
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51
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52
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53 def to_isoformat(t):
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54 """Return the POSIX timestamp `t` formatted in full ISO format.
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55
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56 `t` is expected to be in the UTC timezone.
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57
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58 """
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59 dt = datetime.datetime.utcfromtimestamp(t)
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60 if dt.utcoffset() is None:
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61 return dt.isoformat() + "Z"
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62 else:
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63 return dt.isoformat()
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64
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65
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66 def main():
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67 opt_check = None
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68 opt_differs = None
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69
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70 opts, args = getopt.getopt(sys.argv[1:],
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71 "c:d:",
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72 ["check=",
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73 "differs="])
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74 for opt, val in opts:
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75 if opt in ("-c", "--check"):
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76 opt_check = val
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77 elif opt in ("-d", "--differs"):
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78 opt_differs = val
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79 else:
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80 assert False
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81
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82 if opt_check:
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83 with FloatTimesInStat():
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84 for f in args:
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85 st = os.lstat(f)
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86 tss = to_isoformat(st.st_mtime)
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87 if tss != opt_check:
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88 print(
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89 "mtime does not match for file `{filename}': expected {expected}, current: {current}".format(
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90 filename=f,
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91 expected=opt_check,
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92 current=tss),
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93 file=sys.stderr)
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94 return 1
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95 elif opt_differs:
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96 with FloatTimesInStat():
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97 for f in args:
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98 st = os.lstat(f)
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99 tss = to_isoformat(st.st_mtime)
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100 if tss == opt_differs:
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101 print(
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102 "mtime does not differ for file `{filename}': {timestamp}".format(
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103 filename=f,
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104 timestamp=tss),
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105 file=sys.stderr)
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106 return 1
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107 else:
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108 with FloatTimesInStat():
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109 for f in args:
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110 st = os.lstat(f)
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111 print(to_isoformat(st.st_mtime))
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112 return 0
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113
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114
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115 if __name__ == "__main__":
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116 sys.exit(main())