We ended up passing a NoneType as the program binary, which is a very
awkward way to communicate an error when failing to write a basic
package version file.
There were two allowed kwargs that were unused, I've dropped them for
now, though I need to check if they were documented. If they are then we
need to deprecate them to remove them, otherwise we'll just leave them
removed.
This does not convert the build side, or remove any of the checking it
does. We still need that for other callers of custom target. What we'll
do for those is add an internal interface that defaults things, then
we'll be able to have those callers do their own validation, and the
CustomTarget validation machinary can be removed.
Fixes#9096
This will happen as we transition from doing the conversion in the
function body to using the KwargInfo to make that change. If we get one
just return it.
In the comparison methods of Target. There are several problems with the
old implementation:
1. It's not idiomatic
2. It can match on things that It shouldn't (like a Compiler, which has
a `get_id() -> str` method, but not one that we should compare with
Targets
3. It confuses mypy, which doesn't handle hasattr
It would probably be better if CommandBase had an initializer so it
could set the depend_files and dependencies attributes itself, but this
will make mypy happier.
I've used any because it needs to be infinitely recursive, something
that we simply can't model. But basically until it goes into validator
we have no way of knowing what's going on, since one can write code
like:
```python
KwargInfo[str]('arg', object, validator=_some_very_complex_logic_to_get_specific_string)
```
As such, we can't assume that validator is receiving a type _T, it could
be anything.
Eli Schwartz
Daniel Mensinger
Jussi Pakkanen
Dylan Baker
Xavier Claessens
Christian Clauss