Stabilize config-profile. #7823

ehuss · 2020-01-23T20:15:03Z

This is a proposal to stabilize config-profiles. This feature was proposed in RFC 2282 and implemented in #5506. Tracking issue is rust-lang/rust#48683.

This is intended to land in 1.43 which will reach the stable channel on April 23rd.

This is a fairly straightforward extension of profiles where the exact same syntax from Cargo.toml can be specified in a config file. Environment variables are supported for everything except the package override table, where we do not support the ability to read arbitrary keys in the environment name.

rust-highfive · 2020-01-23T20:15:08Z

r? @steveklabnik

(rust_highfive has picked a reviewer for you, use r? to override)

ehuss · 2020-01-23T20:15:27Z

@rfcbot fcp merge

alexcrichton · 2020-01-23T23:23:17Z

@rfcbot fcp merge

(trying again, I think you'll need the T-cargo tag)

rfcbot · 2020-01-24T00:10:20Z

Team member @alexcrichton has proposed to merge this. The next step is review by the rest of the tagged team members:

No concerns currently listed.

Once a majority of reviewers approve (and at most 2 approvals are outstanding), this will enter its final comment period. If you spot a major issue that hasn't been raised at any point in this process, please speak up!

See this document for info about what commands tagged team members can give me.

rfcbot · 2020-01-24T02:12:22Z

🔔 This is now entering its final comment period, as per the review above. 🔔

alexcrichton · 2020-01-31T11:29:12Z

@bors: r+

bors · 2020-01-31T11:29:14Z

📌 Commit 8e935d4 has been approved by alexcrichton

bors · 2020-01-31T11:50:36Z

⌛ Testing commit 8e935d4 with merge f913212...

Stabilize config-profile. This is a proposal to stabilize config-profiles. This feature was proposed in [RFC 2282](rust-lang/rfcs#2282) and implemented in #5506. Tracking issue is rust-lang/rust#48683. This is intended to land in 1.43 which will reach the stable channel on April 23rd. This is a fairly straightforward extension of profiles where the exact same syntax from `Cargo.toml` can be specified in a config file. Environment variables are supported for everything except the `package` override table, where we do not support the ability to read arbitrary keys in the environment name.

bors · 2020-01-31T12:16:01Z

☀️ Test successful - checks-azure
Approved by: alexcrichton
Pushing f913212 to master...

Pkgsrc changes: * Bump rust bootstrap version to 1.42.0, except for Darwin/i686 where the bootstrap is not (yet?) available. Upstream changes: Version 1.43.0 (2020-04-23) ========================== Language -------- - [Fixed using binary operations with `&{number}` (e.g. `&1.0`) not having the type inferred correctly.][68129] - [Attributes such as `#[cfg()]` can now be used on `if` expressions.][69201] **Syntax only changes** - [Allow `type Foo: Ord` syntactically.][69361] - [Fuse associated and extern items up to defaultness.][69194] - [Syntactically allow `self` in all `fn` contexts.][68764] - [Merge `fn` syntax + cleanup item parsing.][68728] - [`item` macro fragments can be interpolated into `trait`s, `impl`s, and `extern` blocks.][69366] For example, you may now write: ```rust macro_rules! mac_trait { ($i:item) => { trait T { $i } } } mac_trait! { fn foo() {} } ``` These are still rejected *semantically*, so you will likely receive an error but these changes can be seen and parsed by macros and conditional compilation. Compiler -------- - [You can now pass multiple lint flags to rustc to override the previous flags.][67885] For example; `rustc -D unused -A unused-variables` denies everything in the `unused` lint group except `unused-variables` which is explicitly allowed. However, passing `rustc -A unused-variables -D unused` denies everything in the `unused` lint group **including** `unused-variables` since the allow flag is specified before the deny flag (and therefore overridden). - [rustc will now prefer your system MinGW libraries over its bundled libraries if they are available on `windows-gnu`.][67429] - [rustc now buffers errors/warnings printed in JSON.][69227] Libraries --------- - [`Arc<[T; N]>`, `Box<[T; N]>`, and `Rc<[T; N]>`, now implement `TryFrom<Arc<[T]>>`,`TryFrom<Box<[T]>>`, and `TryFrom<Rc<[T]>>` respectively.][69538] **Note** These conversions are only available when `N` is `0..=32`. - [You can now use associated constants on floats and integers directly, rather than having to import the module.][68952] e.g. You can now write `u32::MAX` or `f32::NAN` with no imports. - [`u8::is_ascii` is now `const`.][68984] - [`String` now implements `AsMut<str>`.][68742] - [Added the `primitive` module to `std` and `core`.][67637] This module reexports Rust's primitive types. This is mainly useful in macros where you want avoid these types being shadowed. - [Relaxed some of the trait bounds on `HashMap` and `HashSet`.][67642] - [`string::FromUtf8Error` now implements `Clone + Eq`.][68738] Stabilized APIs --------------- - [`Once::is_completed`] - [`f32::LOG10_2`] - [`f32::LOG2_10`] - [`f64::LOG10_2`] - [`f64::LOG2_10`] - [`iter::once_with`] Cargo ----- - [You can now set config `[profile]`s in your `.cargo/config`, or through your environment.][cargo/7823] - [Cargo will now set `CARGO_BIN_EXE_<name>` pointing to a binary's executable path when running integration tests or benchmarks.][cargo/7697] `<name>` is the name of your binary as-is e.g. If you wanted the executable path for a binary named `my-program`you would use `env!("CARGO_BIN_EXE_my-program")`. Misc ---- - [Certain checks in the `const_err` lint were deemed unrelated to const evaluation][69185], and have been moved to the `unconditional_panic` and `arithmetic_overflow` lints. Compatibility Notes ------------------- - [Having trailing syntax in the `assert!` macro is now a hard error.][69548] This has been a warning since 1.36.0. - [Fixed `Self` not having the correctly inferred type.][69340] This incorrectly led to some instances being accepted, and now correctly emits a hard error. [69340]: rust-lang/rust#69340 Internal Only ------------- These changes provide no direct user facing benefits, but represent significant improvements to the internals and overall performance of `rustc` and related tools. - [All components are now built with `opt-level=3` instead of `2`.][67878] - [Improved how rustc generates drop code.][67332] - [Improved performance from `#[inline]`-ing certain hot functions.][69256] - [traits: preallocate 2 Vecs of known initial size][69022] - [Avoid exponential behaviour when relating types][68772] - [Skip `Drop` terminators for enum variants without drop glue][68943] - [Improve performance of coherence checks][68966] - [Deduplicate types in the generator witness][68672] - [Invert control in struct_lint_level.][68725] [67332]: rust-lang/rust#67332 [67429]: rust-lang/rust#67429 [67637]: rust-lang/rust#67637 [67642]: rust-lang/rust#67642 [67878]: rust-lang/rust#67878 [67885]: rust-lang/rust#67885 [68129]: rust-lang/rust#68129 [68672]: rust-lang/rust#68672 [68725]: rust-lang/rust#68725 [68728]: rust-lang/rust#68728 [68738]: rust-lang/rust#68738 [68742]: rust-lang/rust#68742 [68764]: rust-lang/rust#68764 [68772]: rust-lang/rust#68772 [68943]: rust-lang/rust#68943 [68952]: rust-lang/rust#68952 [68966]: rust-lang/rust#68966 [68984]: rust-lang/rust#68984 [69022]: rust-lang/rust#69022 [69185]: rust-lang/rust#69185 [69194]: rust-lang/rust#69194 [69201]: rust-lang/rust#69201 [69227]: rust-lang/rust#69227 [69548]: rust-lang/rust#69548 [69256]: rust-lang/rust#69256 [69361]: rust-lang/rust#69361 [69366]: rust-lang/rust#69366 [69538]: rust-lang/rust#69538 [cargo/7823]: rust-lang/cargo#7823 [cargo/7697]: rust-lang/cargo#7697 [`Once::is_completed`]: https://doc.rust-lang.org/std/sync/struct.Once.html#method.is_completed [`f32::LOG10_2`]: https://doc.rust-lang.org/std/f32/consts/constant.LOG10_2.html [`f32::LOG2_10`]: https://doc.rust-lang.org/std/f32/consts/constant.LOG2_10.html [`f64::LOG10_2`]: https://doc.rust-lang.org/std/f64/consts/constant.LOG10_2.html [`f64::LOG2_10`]: https://doc.rust-lang.org/std/f64/consts/constant.LOG2_10.html [`iter::once_with`]: https://doc.rust-lang.org/std/iter/fn.once_with.html

Stabilize config-profile.

8e935d4

rust-highfive assigned steveklabnik Jan 23, 2020

rust-highfive added the S-waiting-on-review Status: Awaiting review from the assignee but also interested parties. label Jan 23, 2020

ehuss unassigned steveklabnik Jan 23, 2020

ehuss mentioned this pull request Jan 23, 2020

Tracking issue for RFC 2282 - Cargo profile dependencies rust-lang/rust#48683

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5 tasks

alexcrichton added the T-cargo Team: Cargo label Jan 23, 2020

bors added S-waiting-on-bors Status: Waiting on bors to run and complete tests. Bors will change the label on completion. and removed S-waiting-on-review Status: Awaiting review from the assignee but also interested parties. labels Jan 31, 2020

bors merged commit 8e935d4 into rust-lang:master Jan 31, 2020

bors mentioned this pull request Jan 31, 2020

fix mdbook test with ```ignore #7832

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rfcbot added finished-final-comment-period FCP complete and removed final-comment-period FCP — a period for last comments before action is taken labels Feb 3, 2020

ehuss mentioned this pull request Mar 24, 2020

Update RELEASES.md for 1.43.0 rust-lang/rust#70354

Merged

glorv mentioned this pull request May 6, 2020

build: remove unstable build option -Zconfig-profile tikv/tikv#7743

Merged

ehuss added this to the 1.43.0 milestone Feb 6, 2022

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Stabilize config-profile. #7823

Stabilize config-profile. #7823

ehuss commented Jan 23, 2020

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alexcrichton commented Jan 23, 2020

rfcbot commented Jan 24, 2020 •

edited by Eh2406

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Stabilize config-profile. #7823

Stabilize config-profile. #7823

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ehuss commented Jan 23, 2020

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rfcbot commented Jan 24, 2020 •

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