test/sconsign/ghost-entries.py

   1 #!/usr/bin/env python
   2 #
   3 # __COPYRIGHT__
   4 #
   5 # Permission is hereby granted, free of charge, to any person obtaining
   6 # a copy of this software and associated documentation files (the
   7 # "Software"), to deal in the Software without restriction, including
   8 # without limitation the rights to use, copy, modify, merge, publish,
   9 # distribute, sublicense, and/or sell copies of the Software, and to
  10 # permit persons to whom the Software is furnished to do so, subject to
  11 # the following conditions:
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  13 # The above copyright notice and this permission notice shall be included
  14 # in all copies or substantial portions of the Software.
  15 #
  16 # THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY
  17 # KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE
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  19 # NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
  20 # LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
  21 # OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  22 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  23 #
  24
  25 __revision__ = "__FILE__ __REVISION__ __DATE__ __DEVELOPER__"
  26
  27 """
  28 Verify that "ghost" entries in the .sconsign file don't have Nodes
  29 created for them on subsequent runs (which would cause errors
  30 when scanning directories).
  31 """
  32
  33 import os.path
  34
  35 d_current_txt = os.path.join('d', 'current.txt')
  36
  37 import TestSCons
  38
  39 test = TestSCons.TestSCons()
  40
  41 # This test case is from Morten Elo Petersen.  It's harder because
  42 # blib-case1only actually exists in the build dir after the -c, so the
  43 # Dir scanner finds it and adds it to the dir's entries.
  44 # Unfortunately FS.py's File.exists() method checks it later and finds
  45 # it looks like a stale build copy of a missing source, so it deletes
  46 # it.  And then it's later discovered to be missing since it's still
  47 # in the dir's entries list.  The fix for this is to test for missing
  48 # source files in the dir scanner (Scanner/Dir.py), and delete them
  49 # (just like File.exists() does if they're found in the build dir
  50 # rather than making entries for them.
  51
  52 test.write('SConstruct', """\
  53 def cat(target, source, env):
  54     with open(str(target[0]), 'wb') as fp:
  55         for s in source:
  56             with open(str(s), 'rb') as infp:
  57                 fp.write(infp.read())
  58 env=Environment()
  59 Export('env')
  60 env['BUILDERS']['Cat']=Builder(action=cat, multi=1)
  61 SConscript('src/SConscript',variant_dir='build')
  62 """)
  63
  64 test.subdir('src')
  65 test.write(['src', 'SConscript'], """\
  66 Import('env')
  67 if ARGUMENTS['case']=='1':
  68     A=env.Cat('#build/lib/blib-case1only','src.txt')
  69     B=env.Cat('#build/lib/blibB','#build/lib/blib-case1only')
  70 if ARGUMENTS['case']=='2':
  71     A=env.Cat('case2only','src.txt')
  72     B=env.Cat('#build/lib/blibB.txt','case2only')
  73 env.Alias('go','#build/lib')
  74 """)
  75
  76 test.write(['src', 'src.txt'], "anything")
  77
  78 test.run(arguments="-Q go case=1")
  79 test.must_exist('build/lib/blib-case1only')
  80 test.run(arguments="-Q go case=2")
  81 test.run(arguments="-Q go case=2 -c")
  82 test.run(arguments="-Q go case=2")
  83
  84
  85 #############################################################################
  86 # This test case is from Jason Orendorff.
  87 # Checking for existence before making nodes for things found in the
  88 # .sconsign fixes this one.
  89
  90 test.write('SConstruct', """\
  91 Command("d/current.txt", [], [Touch("$TARGET")])
  92 if 'pass' in ARGUMENTS and ARGUMENTS['pass'] == '1':
  93   Command("d/obsolete.txt", [], [Touch("$TARGET")])
  94 Command("installer.exe", ['d'], [Touch("$TARGET")])
  95 """)
  96
  97 test.run(arguments='-Q pass=1')
  98
  99 # Now delete the created files
 100 test.unlink(['d', 'obsolete.txt'])
 101 test.unlink(['d', 'current.txt'])
 102 test.rmdir(['d'])
 103
 104 # Run again, as pass 2
 105 expect = """Touch("%(d_current_txt)s")
 106 Touch("installer.exe")
 107 """ % locals()
 108
 109 test.run(arguments='-Q pass=2', stdout=expect)
 110
 111 test.pass_test()
 112
 113 # Local Variables:
 114 # tab-width:4
 115 # indent-tabs-mode:nil
 116 # End:
 117 # vim: set expandtab tabstop=4 shiftwidth=4: