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96 lines
3.0 KiB
Python
96 lines
3.0 KiB
Python
#!/usr/bin/env python
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#
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# __COPYRIGHT__
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#
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# Permission is hereby granted, free of charge, to any person obtaining
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# a copy of this software and associated documentation files (the
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# "Software"), to deal in the Software without restriction, including
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# without limitation the rights to use, copy, modify, merge, publish,
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# distribute, sublicense, and/or sell copies of the Software, and to
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# permit persons to whom the Software is furnished to do so, subject to
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# the following conditions:
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#
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# The above copyright notice and this permission notice shall be included
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# in all copies or substantial portions of the Software.
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#
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# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY
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# KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE
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# WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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# NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
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# LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
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# OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
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# WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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#
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__revision__ = "__FILE__ __REVISION__ __DATE__ __DEVELOPER__"
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"""
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Test that switching Decider() types between MD5 and timestamp-match
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does not cause unnecessary rebuilds.
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"""
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import TestSCons
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test = TestSCons.TestSCons(match=TestSCons.match_re_dotall)
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base_sconstruct_contents = """\
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DefaultEnvironment(tools=[])
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Decider('%s')
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def build(env, target, source):
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with open(str(target[0]), 'wt') as f, open(str(source[0]), 'rt') as ifp:
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f.write(ifp.read())
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B = Builder(action=build)
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env = Environment(tools=[], BUILDERS = { 'B' : B })
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env.B(target='switch.out', source='switch.in')
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"""
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def write_SConstruct(test, sig_type):
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contents = base_sconstruct_contents % sig_type
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test.write('SConstruct', contents)
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# Build first MD5 checksums.
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write_SConstruct(test, 'MD5')
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test.write('switch.in', "switch.in\n")
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switch_out_switch_in = test.wrap_stdout(r'build\(\["switch.out"\], \["switch.in"\]\)\n')
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test.run(arguments='switch.out', stdout=switch_out_switch_in)
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test.up_to_date(arguments='switch.out')
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# Now rebuild with timestamp-match. Because we always store timestamps,
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# even when making the decision based on MD5 checksums, the build is
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# still up to date.
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write_SConstruct(test, 'timestamp-match')
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test.up_to_date(arguments='switch.out')
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# Now switch back to MD5 checksums. When we rebuilt with the timestamp,
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# it wiped out the MD5 value (because the point of timestamps is to not
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# open up and checksum the contents), so the file is considered *not*
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# up to date and must be rebuilt to generate a checksum.
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write_SConstruct(test, 'MD5')
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test.not_up_to_date(arguments='switch.out')
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# And just for good measure, make sure that we now rebuild in response
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# to a content change.
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test.write('switch.in', "switch.in 2\n")
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test.run(arguments='switch.out', stdout=switch_out_switch_in)
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test.pass_test()
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# Local Variables:
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# tab-width:4
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# indent-tabs-mode:nil
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# End:
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# vim: set expandtab tabstop=4 shiftwidth=4:
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