[Scons-users] strange behavior around env.AddMethod

[Rob Deckers]

Hi,

I am adjusting a part to run tests on a remote target.
We have 2 kinds of files that should be copied to the target.

'normal' test dependency files, which will be copied to env['TESTTARGET_DIR']
And shared libraries, which should be copied to another directory env['LIBTARGET_DIR']

I have created 2 single source builders that use a generator.
One uses this function:
def _libtest_dependency_action_generator(source, target, env, for_signature):
  env['SHARED_LIB'] = True
  return _test_dependency_action_generator(source, target, env, for_signature)

the other this one:
def _scripttest_dependency_action_generator(source, target, env, for_signature):
  env['SHARED_LIB'] = False
  return _test_dependency_action_generator(source, target, env, for_signature)

A few function's deeper, where the actually copy takes place, I have something like:
def _copyto_target_dir_action_method(env, source, compress=False, rel_dir=None, **keywords):
  if env['SHARED_LIB']:
    target = env['LIBTARGET_DIR']
  else:
    target = env['TESTTARGET_DIR']

The copy function is added to the environment in the generate function with:
env.AddMethod(_copyto_target_dir_action_method, "CopyToTargetDir")

So far, so good.
Now the strange thing:
When I use:
_copyto_target_dir_action_method(env, <other vars>)

env['SHARED_LIB'] still contain's it's value, BUT when I use:
env.CopyToTargetDir(<other vars>)

the  if env['SHARED_LIB']: always returns false.

What is going on?

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