test/Decider/timestamp.py

   1 #!/usr/bin/env python
   2 #
   3 # MIT License
   4 #
   5 # Copyright The SCons Foundation
   6 #
   7 # Permission is hereby granted, free of charge, to any person obtaining
   8 # a copy of this software and associated documentation files (the
   9 # "Software"), to deal in the Software without restriction, including
  10 # without limitation the rights to use, copy, modify, merge, publish,
  11 # distribute, sublicense, and/or sell copies of the Software, and to
  12 # permit persons to whom the Software is furnished to do so, subject to
  13 # the following conditions:
  14 #
  15 # The above copyright notice and this permission notice shall be included
  16 # in all copies or substantial portions of the Software.
  17 #
  18 # THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY
  19 # KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE
  20 # WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  21 # NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
  22 # LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
  23 # OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  24 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  25
  26 """
  27 Verify various interactions of the timestamp-match and timestamp-newer
  28 Decider() settings:.
  29 """
  30
  31 import os
  32 import stat
  33
  34 import TestSCons
  35
  36 test = TestSCons.TestSCons()
  37
  38 test.write('SConstruct', """\
  39 DefaultEnvironment(tools=[])
  40 m = Environment(tools=[])
  41 m.Decider('timestamp-match')
  42 m.Command('match1.out', 'match1.in', Copy('$TARGET', '$SOURCE'))
  43 m.Command('match2.out', 'match2.in', Copy('$TARGET', '$SOURCE'))
  44 n = Environment(tools=[])
  45 n.Decider('timestamp-newer')
  46 n.Command('newer1.out', 'newer1.in', Copy('$TARGET', '$SOURCE'))
  47 n.Command('newer2.out', 'newer2.in', Copy('$TARGET', '$SOURCE'))
  48 """)
  49
  50 test.write('match1.in', "match1.in\n")
  51 test.write('match2.in', "match2.in\n")
  52 test.write('newer1.in', "newer1.in\n")
  53 test.write('newer2.in', "newer2.in\n")
  54
  55 test.run(arguments = '.')
  56 test.up_to_date(arguments = '.')
  57
  58 time_match = os.stat('match2.out')[stat.ST_MTIME]
  59 time_newer = os.stat('newer2.out')[stat.ST_MTIME]
  60
  61 # Now make all the source files newer than (different timestamps from)
  62 # the last time the targets were built, and touch the target files
  63 # of match1.out and newer1.out to see the different effects.
  64 test.sleep()  # delay for timestamps
  65 test.touch('match1.in')
  66 test.touch('newer1.in')
  67 test.touch('match2.in')
  68 test.touch('newer2.in')
  69
  70 test.sleep()  # delay for timestamps
  71 test.touch('match1.out')
  72 test.touch('newer1.out')
  73
  74 # We should see both match1.out and match2.out rebuilt, because the
  75 # source file timestamps do not match the last time they were built,
  76 # but only newer2.out rebuilt.  newer1.out is *not* rebuilt because
  77 # the actual target file timestamp is, in fact, newer than the
  78 # source file (newer1.in) timestamp.
  79
  80 expect = test.wrap_stdout("""\
  81 Copy("match1.out", "match1.in")
  82 Copy("match2.out", "match2.in")
  83 Copy("newer2.out", "newer2.in")
  84 """)
  85
  86 test.run(arguments='.', stdout=expect)
  87
  88 # Now, for the somewhat pathological case, reset the match2.out and
  89 # newer2.out timestamps to the older timestamp when the targets were
  90 # first built.  This will cause newer2.out to be rebuilt, because
  91 # the newer1.in timestamp is now newer than the older, reset target
  92 # file timestamp, but match2.out is *not* rebuilt because its source
  93 # file (match2.in) timestamp still exactly matches the timestamp
  94 # recorded when the target file was last built.
  95
  96 test.touch('match2.out', time_match)
  97 test.touch('newer2.out', time_newer)
  98
  99 expect = test.wrap_stdout("""\
 100 Copy("newer2.out", "newer2.in")
 101 """)
 102
 103 test.run(arguments='.', stdout=expect)
 104
 105 test.pass_test()
 106
 107 # Local Variables:
 108 # tab-width:4
 109 # indent-tabs-mode:nil
 110 # End:
 111 # vim: set expandtab tabstop=4 shiftwidth=4: