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Add special check-cfg lint config for the unexpected_cfgs lint #13913

Merged
merged 5 commits into from
May 17, 2024
Merged

Add special check-cfg lint config for the unexpected_cfgs lint #13913

merged 5 commits into from
May 17, 2024

Commits on May 16, 2024

  1. Allow lint config to have extra custom configs 

    And report the unused manifest key warning for every key that we do not
use, which is currently every of them.
    @Urgau
    Urgau committed May 16, 2024
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  2. Add special check-cfg config for the unexpected_cfgs lint 

    This permits things like this to be recognized and passed to
rustc/rustdoc.

```rust
[lints.rust]
unexpected_cfgs = { level = "warn", check-cfg = ["cfg(foo)"] }
```
    @Urgau
    Urgau committed May 16, 2024
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  3. Dogfood tests for check-cfg config of the unexpected_cfgs lint 

    Those new tests tries to be as exhaustive as possible while being
reasonable in the number of them. To do so we try to check for
check/doc/test/build-script/features with a the `check-cfg` config.

Many of those tests are very similar to their non-config counterpart.
    @Urgau
    Urgau committed May 16, 2024
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  4. Move malformatted check-cfg config warning to error 

    since it's always backwards compatible to go from error to warn, but not
the inverse.
    @Urgau
    Urgau committed May 16, 2024
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  5. Remove now unnecessary local-only build.rs example for check-cfg

    @Urgau
    Urgau committed May 16, 2024
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