test/Parallel/duplicate-target.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:
  12 #
  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
  18 # WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  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, when a file is specified multiple times in a target
  29 list, we still build all of the necessary targets.
  30
  31 This used to cause a target to "disappear" from the DAG when its reference
  32 count dropped below 0, because we were subtracting the duplicated target
  33 mutiple times even though we'd only visit it once.  This was particularly
  34 hard to track down because the DAG itself (when printed with --tree=prune,
  35 for example) doesn't show the duplication in the *target* list.
  36 """
  37
  38 import TestSCons
  39
  40 _python_ = TestSCons._python_
  41
  42 test = TestSCons.TestSCons()
  43
  44 test.subdir('work', ['work', 'sub'])
  45
  46 tar_output = test.workpath('work.tar')
  47
  48 test.write(['work', 'mycopy.py'], """\
  49 import sys
  50 import time
  51 time.sleep(int(sys.argv[1]))
  52 with open(sys.argv[2], 'wb') as ofp, open(sys.argv[3], 'rb') as ifp:
  53     ofp.write(ifp.read())
  54 """)
  55
  56 test.write(['work', 'mytar.py'], """\
  57 import sys
  58 import os.path
  59
  60 ofp = open(sys.argv[1], 'wb')
  61
  62 def visit(dirname):
  63     names = os.listdir(dirname)
  64     names.sort()
  65     for n in names:
  66         p = os.path.join(dirname, n)
  67         if os.path.isdir(p):
  68             visit(p)
  69         elif os.path.isfile(p):
  70             with open(p, 'rb') as ifp:
  71                 ofp.write(ifp.read())
  72
  73 for s in sys.argv[2:]:
  74     visit(s)
  75 ofp.close()
  76 """)
  77
  78 test.write(['work', 'SConstruct'], """\
  79 env = Environment()
  80 out1 = File('sub/f1.out')
  81 out2 = File('sub/f2.out')
  82 env.Command([out1, out1], 'sub/f1.in',
  83             r'%(_python_)s mycopy.py 3 $TARGET $SOURCE')
  84 env.Command([out2, out2], 'sub/f2.in',
  85             r'%(_python_)s mycopy.py 3 $TARGET $SOURCE')
  86
  87 env.Command(r'%(tar_output)s', Dir('sub'),
  88             r'%(_python_)s mytar.py $TARGET $SOURCE')
  89 """ % locals())
  90
  91 test.write(['work', 'sub', 'f1.in'], "work/sub/f1.in\n")
  92 test.write(['work', 'sub', 'f2.in'], "work/sub/f2.in\n")
  93
  94 test.run(chdir = 'work', arguments = tar_output + ' -j2')
  95
  96 test.must_match(['work', 'sub', 'f1.out'], "work/sub/f1.in\n")
  97 test.must_match(['work', 'sub', 'f2.out'], "work/sub/f2.in\n")
  98 test.must_match(tar_output, """\
  99 work/sub/f1.in
 100 work/sub/f1.in
 101 work/sub/f2.in
 102 work/sub/f2.in
 103 """)
 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: