[Scons-users] **JUNK** Value/Alias Nodes default to up-to-date

[Bill Deegan]

Maybe you explain what you're trying to do, rather than how you're
currently trying to do it?
Because this looks like a mess of hard to understand code and there's very
likely a better way to do this.

Those aliases would never be out of date with a static source.
Your command has no source listed, so it will also never be out of
date..(after the first time, if the file t1 was actually built).

-Bill


On Sun, Jan 2, 2022 at 2:20 PM Bill Deegan <bill at baddogconsulting.com>
wrote:

> also why **JUNK** in subject?
>
> On Sun, Jan 2, 2022 at 2:20 PM Bill Deegan <bill at baddogconsulting.com>
> wrote:
>
>> What output do you see when you run your example?
>>
>>
>> On Sun, Jan 2, 2022 at 7:56 AM Brad Kraemer <computerpro_58 at hotmail.com>
>> wrote:
>>
>>> Hello,
>>>
>>> I filed a GitHub Issue <https://github.com/SCons/scons/issues/4079> and
>>> got bounced to this mailing list. So here we go again:
>>>
>>> Value/Alias nodes (as created by the Alias() and Value()
>>> functions/methods receptively) default to up-to-date.
>>>
>>> SCons 4.1.0
>>>
>>> Python 3.9
>>>
>>> Installed from nixpkgs (NixOS, $ nix-env -iA nixos.scons)
>>>
>>> Linux
>>>
>>> Reproduction (SConstruct):
>>>
>>> def print_target_1(target, source, env):
>>>    print("Target 1 built")
>>>
>>> def print_alias_1(target, source, env):
>>>    print("[I'm not getting called]")
>>>
>>> def print_alias_2(target, source, env):
>>>    print("I'm getting called because of AlwaysBuild() workaround")
>>>
>>> t1 = Command("t1", [], Action(print_target_1, cmdstr=None))
>>> Default(t1)
>>>
>>> v = Value("_")
>>> a1 = Alias("a1", v, Action(print_alias_1, cmdstr=None))
>>> a2 = Alias("a2", v, Action(print_alias_2, cmdstr=None))
>>> Depends(t1, a1)
>>> Depends(t1, a2)
>>>
>>> AlwaysBuild(a2)
>>>
>>>
>>> Invoke via executing '$ scons' from the directory where the above
>>> SConstruct file exists.
>>>
>>>
>>> Thanks,
>>>
>>> simplejack-src
>>>
>>>
>>> _______________________________________________
>>> Scons-users mailing list
>>> Scons-users at scons.org
>>> https://pairlist4.pair.net/mailman/listinfo/scons-users
>>>
>>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <https://pairlist4.pair.net/pipermail/scons-users/attachments/20220102/3effb000/attachment.htm>