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
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
|
"""SCons.Taskmaster
Generic Taskmaster.
"""
#
# Copyright (c) 2001 Steven Knight
#
# 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__"
import SCons.Node
class Task:
"""Default SCons build engine task."""
def __init__(self,target):
self.target = target
def execute(self):
self.target.build()
def set_state(self, state):
return self.target.set_state(state)
def current(node):
"""Default SCons build engine is-it-current function.
This returns "always out of date," so every node is always
built/visited.
"""
return None
class Taskmaster:
"""A generic Taskmaster for handling a bunch of targets.
Classes that override methods of this class should call
the base class method, so this class can do it's thing.
"""
def __init__(self, targets=[], tasker=Task, current=current):
self.walkers = map(SCons.Node.Walker, targets)
self.tasker = tasker
self.current = current
self.targets = targets
def next_task(self):
while self.walkers:
n = self.walkers[0].next()
if n == None:
self.walkers.pop(0)
elif n.get_state() == SCons.Node.up_to_date:
self.up_to_date(n, self.walkers[0].is_done())
elif n.get_state() == SCons.Node.failed:
# XXX do the right thing here
pass
elif n.get_state() == SCons.Node.executing:
# XXX do the right thing here
pass
elif n.get_state() == SCons.Node.executed:
# skip this node because it has already been executed
pass
elif self.current(n):
n.set_state(SCons.Node.up_to_date)
self.up_to_date(n, self.walkers[0].is_done())
else:
n.set_state(SCons.Node.executing)
return self.tasker(n)
return None
def is_blocked(self):
return 0
def up_to_date(self, node):
pass
def executed(self, task):
task.set_state(SCons.Node.executed)
def failed(self, task):
self.walkers = []
task.set_state(SCons.Node.failed)
|
