RFC: Prevent lint changes being a breaking change #1193
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Add a new flag to the compiler, `--cap-lints`, which set the maximum possible lint level for the entire crate (and cannot be overridden). Cargo will then pass `--cap-lints allow` to all upstream dependencies when compiling code.
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We could hide it away in e.g. -Z to keep it from polluting --help.
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We do currently kinda have this already, the --help --verbose page is a little longer than --help. I'd also prefer to continue to consider -Z as "unstable flags", aka flags that Cargo should avoid.
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Big 👍 from me. |
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+1 from me. |
text/0000-cap-lints.md
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(`#[forbid] needs a closing backtick)
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After being bit hard by |
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👍 Alex! |
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The tools team has decided to place this RFC in its final comment period. |
brson
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This reverts commit 00130cf. As mentioned in a regression report[1], this caused a notable amount of breakage. Because there's a plan to mitigate[2] this type of breakage, I'm reverting this until then. [1]: https://internals.rust-lang.org/t/new-crater-reports-1-1-stable-vs-beta-2015-07-10-and-nightly-2015-07-10/2358 [2]: rust-lang/rfcs#1193
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This reverts commit 00130cf. As mentioned in a regression report[1], this caused a notable amount of breakage. Because there's a plan to mitigate[2] this type of breakage, I'm reverting this until then. [1]: https://internals.rust-lang.org/t/new-crater-reports-1-1-stable-vs-beta-2015-07-10-and-nightly-2015-07-10/2358 [2]: rust-lang/rfcs#1193
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The consensus of the tools team is to merge this RFC, so I'm going to do so! |
alexcrichton
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This commit is an implementation of [RFC 1193][rfc] which adds the ability to the compiler to cap the lint level for the entire compilation session. This flag will ensure that no lints will go above this level, and Cargo will primarily use this flag passing `--cap-lints allow` to all upstream dependencies. [rfc]: rust-lang/rfcs#1193 Closes rust-lang#27259
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This commit is an implementation of [RFC 1193][rfc] which adds the ability to the compiler to cap the lint level for the entire compilation session. This flag will ensure that no lints will go above this level, and Cargo will primarily use this flag passing `--cap-lints allow` to all upstream dependencies. [rfc]: rust-lang/rfcs#1193 Closes #27259
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Add a new flag to the compiler,
--cap-lints, which set the maximum possiblelint level for the entire crate (and cannot be overridden). Cargo will then pass
--cap-lints allowto all upstream dependencies when compiling code.Fixes #1029.
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