test/no-global-dependencies.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 Test that files are correctly located in the variant directory even when
  28 Scons does not have a global view of all targets.
  29
  30 Sometimes, it might be interesting to not tell scons about every
  31 targets. For example, one might not read in all the SConscipts of a
  32 hierarchical build for a particular invocation of scons. This would be
  33 done to speed-up a partial rebuild when the developer knows that only
  34 a subset of the targets need to be rebuilt.
  35 """
  36
  37 import TestSCons
  38
  39 test = TestSCons.TestSCons()
  40
  41 test.subdir('dir1')
  42 test.subdir('dir2')
  43
  44 test.write('SConstruct', """\
  45 opts = Variables()
  46 opts.AddVariables(
  47     BoolVariable('view_all_dependencies', 'View all dependencies', True),
  48     BoolVariable('duplicate', 'Duplicate sources to variant dir', True)
  49 )
  50
  51 _ = DefaultEnvironment(tools=[])
  52 env = Environment(options=opts)
  53 Export('env')
  54
  55 SConscript(dirs='.', variant_dir='build', duplicate=env['duplicate'])
  56 """)
  57
  58
  59 test.write('SConscript', """\
  60 Import('env')
  61
  62 if env['view_all_dependencies']:
  63     SConscript(dirs='dir1')
  64
  65 SConscript(dirs='dir2')
  66 """)
  67
  68 test.write('dir1/SConscript', """\
  69 Import('env')
  70
  71 env.Command('x.cpp', '', Touch('$TARGET'))
  72
  73 env.Object(env.File('x.cpp'))
  74 """)
  75
  76 test.write('dir2/SConscript', """\
  77 Import('env')
  78
  79 env.Object(env.File('#/build/dir1/x.cpp'))
  80 """)
  81
  82 test.must_not_exist('build/dir1/x.cpp')
  83
  84
  85 ############################################################
  86 #
  87 # Test without duplication
  88 #
  89
  90 # Build everything first.
  91 test.run(arguments='duplicate=False view_all_dependencies=True .')
  92 test.must_exist('build/dir1/x.cpp')
  93 test.must_not_contain_any_line(test.stdout(), ["`.' is up to date."])
  94
  95 # Double check that targets are not rebuilt.
  96 test.run(arguments='duplicate=False view_all_dependencies=True .')
  97 test.must_exist('build/dir1/x.cpp')
  98 test.must_contain_all_lines(test.stdout(), ["`.' is up to date."])
  99
 100 # Clean-up only the object file
 101 test.run(arguments='duplicate=False view_all_dependencies=False -c .')
 102 test.must_exist('build/dir1/x.cpp')
 103
 104 # Rebuild the only object file without seeing all the dependencies.
 105 test.run(arguments='duplicate=False view_all_dependencies=False .')
 106 test.must_exist('build/dir1/x.cpp')
 107 test.must_not_contain_any_line(test.stdout(), ["`.' is up to date."])
 108
 109 # Double check that targets are not rebuilt without and with all the
 110 # dependencies.
 111 test.run(arguments='duplicate=False view_all_dependencies=False .')
 112 test.must_exist('build/dir1/x.cpp')
 113 test.must_contain_all_lines(test.stdout(), ["`.' is up to date."])
 114
 115 test.run(arguments='duplicate=False view_all_dependencies=True .')
 116 test.must_exist('build/dir1/x.cpp')
 117 test.must_contain_all_lines(test.stdout(), ["`.' is up to date."])
 118
 119 # Clean-up everything.
 120 test.run(arguments='duplicate=False view_all_dependencies=True -c .')
 121 test.must_not_exist('build/dir1/x.cpp')
 122
 123
 124 ############################################################
 125 #
 126 # Test with duplication
 127 #
 128 # FIXME: This can not work for now because there is no way that SCons
 129 # can differentiate between a source that no longer exists and a file
 130 # that has a builder that scons does not know about because scons has
 131 # not parsed all the SConscript of a given project.
 132 #
 133
 134 # # Build everything first.
 135 # test.run(arguments='duplicate=True view_all_dependencies=True .')
 136 # test.must_exist('build/dir1/x.cpp')
 137 # test.must_not_contain_any_line(test.stdout(), ["`.' is up to date."])
 138
 139 # # Double check that targets are not rebuilt.
 140 # test.run(arguments='duplicate=True view_all_dependencies=True .')
 141 # test.must_exist('build/dir1/x.cpp')
 142 # test.must_contain_all_lines(test.stdout(), ["`.' is up to date."])
 143
 144 # # Clean-up only the object file
 145 # test.run(arguments='duplicate=True view_all_dependencies=False -c .')
 146 # test.must_exist('build/dir1/x.cpp')
 147
 148 # # Rebuild the only object file without seeing all the dependencies.
 149 # test.run(arguments='duplicate=True view_all_dependencies=False .')
 150 # test.must_exist('build/dir1/x.cpp')
 151 # test.must_not_contain_any_line(test.stdout(), ["`.' is up to date."])
 152
 153 # # Double check that targets are not rebuilt without and with all the
 154 # # dependencies.
 155 # test.run(arguments='duplicate=True view_all_dependencies=False .')
 156 # test.must_exist('build/dir1/x.cpp')
 157 # test.must_contain_all_lines(test.stdout(), ["`.' is up to date."])
 158
 159 # test.run(arguments='duplicate=True view_all_dependencies=True .')
 160 # test.must_exist('build/dir1/x.cpp')
 161 # test.must_contain_all_lines(test.stdout(), ["`.' is up to date."])
 162
 163 # # Clean-up everything.
 164 # test.run(arguments='duplicate=True view_all_dependencies=True -c .')
 165 # test.must_not_exist('build/dir1/x.cpp')
 166
 167
 168 test.pass_test()
 169
 170 # Local Variables:
 171 # tab-width:4
 172 # indent-tabs-mode:nil
 173 # End:
 174 # vim: set expandtab tabstop=4 shiftwidth=4: