diff options
Diffstat (limited to 'engine/SCons/Taskmaster.py')
| -rw-r--r-- | engine/SCons/Taskmaster.py | 35 |
1 files changed, 21 insertions, 14 deletions
diff --git a/engine/SCons/Taskmaster.py b/engine/SCons/Taskmaster.py index e98a859..cd95fb0 100644 --- a/engine/SCons/Taskmaster.py +++ b/engine/SCons/Taskmaster.py @@ -1,5 +1,5 @@ # -# Copyright (c) 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011 The SCons Foundation +# Copyright (c) 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012 The SCons Foundation # # Permission is hereby granted, free of charge, to any person obtaining # a copy of this software and associated documentation files (the @@ -47,7 +47,7 @@ interface and the SCons build engine. There are two key classes here: target(s) that it decides need to be evaluated and/or built. """ -__revision__ = "src/engine/SCons/Taskmaster.py 5357 2011/09/09 21:31:03 bdeegan" +__revision__ = "src/engine/SCons/Taskmaster.py issue-2856:2676:d23b7a2f45e8 2012/08/05 15:38:28 garyo" from itertools import chain import operator @@ -227,20 +227,26 @@ class Task(object): if T: T.write(self.trace_message(u'Task.execute()', self.node)) try: - everything_was_cached = 1 + cached_targets = [] for t in self.targets: - if t.retrieve_from_cache(): - # Call the .built() method without calling the - # .push_to_cache() method, since we just got the - # target from the cache and don't need to push - # it back there. - t.set_state(NODE_EXECUTED) - t.built() - else: - everything_was_cached = 0 + if not t.retrieve_from_cache(): break - if not everything_was_cached: + cached_targets.append(t) + if len(cached_targets) < len(self.targets): + # Remove targets before building. It's possible that we + # partially retrieved targets from the cache, leaving + # them in read-only mode. That might cause the command + # to fail. + # + for t in cached_targets: + try: + t.fs.unlink(t.path) + except (IOError, OSError): + pass self.targets[0].build() + else: + for t in cached_targets: + t.cached = 1 except SystemExit: exc_value = sys.exc_info()[1] raise SCons.Errors.ExplicitExit(self.targets[0], exc_value.code) @@ -292,7 +298,8 @@ class Task(object): for side_effect in t.side_effects: side_effect.set_state(NODE_NO_STATE) t.set_state(NODE_EXECUTED) - t.push_to_cache() + if not t.cached: + t.push_to_cache() t.built() t.visited() |