1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
|
#!/usr/bin/env python
#
# __COPYRIGHT__
#
# Permission is hereby granted, free of charge, to any person obtaining
# a copy of this software and associated documentation files (the
# "Software"), to deal in the Software without restriction, including
# without limitation the rights to use, copy, modify, merge, publish,
# distribute, sublicense, and/or sell copies of the Software, and to
# permit persons to whom the Software is furnished to do so, subject to
# the following conditions:
#
# The above copyright notice and this permission notice shall be included
# in all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY
# KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE
# WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
# NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
# LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
# OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
# WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
#
__revision__ = "__FILE__ __REVISION__ __DATE__ __DEVELOPER__"
"""
Verify that Scanners are not called if a previous --implicit-cache
run stored an empty list of implicit dependencies.
"""
import TestSCons
test = TestSCons.TestSCons()
test.write('SConstruct', r"""
import os.path
def scan(node, env, envkey, arg):
print 'XScanner: node =', os.path.split(str(node))[1]
return []
def exists_check(node, env):
return os.path.exists(str(node))
XScanner = Scanner(name = 'XScanner',
function = scan,
argument = None,
scan_check = exists_check,
skeys = ['.x'])
def echo(env, target, source):
t = os.path.split(str(target[0]))[1]
s = os.path.split(str(source[0]))[1]
print 'create %s from %s' % (t, s)
open(t, 'wb').write(open(s, 'rb').read())
Echo = Builder(action = Action(echo, None),
src_suffix = '.x',
suffix = '.x')
env = Environment(BUILDERS = {'Echo':Echo}, SCANNERS = [XScanner])
f1 = env.Echo(source=['f1_in'], target=['f1_out'])
""")
test.write('f1_in.x', 'f1_in.x\n')
expect = test.wrap_stdout("""\
XScanner: node = f1_in.x
create f1_out.x from f1_in.x
""")
test.run(arguments = '--implicit-cache .', stdout = expect)
# Run it again, and the output must contain only the "up to date" message,
# *not* the line printed by the XScanner function.
test.up_to_date(options = '--implicit-cache', arguments = '.')
test.pass_test()
|
