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bors f06b7c59a3 Auto merge of #114183 - Urgau:stabilize-print-with-path, r=oli-obk 
Stabilize `PATH` option for `--print KIND=PATH`

This PR propose stabilizing the `PATH` option for `--print KIND=PATH`. This option was previously added in https://github.com/rust-lang/rust/pull/113780 (as insta-stable before being un-stablized in https://github.com/rust-lang/rust/pull/114139).

Description of the `PATH` option:
> A filepath may optionally be specified for each requested information kind, in the format `--print KIND=PATH`, just like for `--emit`. When a path is specified, information will be written there instead of to stdout.

------

Description of the original PR [\[link\]](https://github.com/rust-lang/rust/pull/113780#issue-1807080607):
> **Support --print KIND=PATH command line syntax**
>
> As is already done for `--emit KIND=PATH` and `-L KIND=PATH`.
>
> In the discussion of https://github.com/rust-lang/rust/pull/110785, it was pointed out that `--print KIND=PATH` is nicer than trying to apply the single global `-o path` to `--print`'s output, because in general there can be multiple print requests within a single rustc invocation, and anyway `-o` would already be used for a different meaning in the case of `link-args` and `native-static-libs`.
>
> I am interested in using `--print cfg=PATH` in Buck2. Currently Buck2 works around the lack of support for `--print KIND=PATH` by [indirecting through a Python wrapper script](d43cf3a51a/prelude/rust/tools/get_rustc_cfg.py) to redirect rustc's stdout into the location dictated by the build system.
>
> From skimming Cargo's usages of `--print`, it definitely seems like it would benefit from `--print KIND=PATH` too. Currently it is working around the lack of this by inserting `--crate-name=___ --print=crate-name` so that it can look for a line containing `___` as a delimiter between the 2 other `--print` informations it actually cares about. This is commented as a "HACK" and "abuse". 31eda6f7c3/src/cargo/core/compiler/build_context/target_info.rs (L242)

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cc `@dtolnay`
r? `@jackh726`
2023-09-07 14:24:46 +00:00
..
bootstrap fix log formatting in bootstrap 2023-09-06 10:14:09 +03:00
ci Mirror the rustc-perf source 2023-09-04 13:21:05 -04:00
doc Stabilize PATH option for --print KIND=PATH 2023-09-07 15:07:30 +02:00
etc rust-gdbgui: remove excessive quotes 2023-08-22 09:09:00 -04:00
librustdoc Auto merge of #115507 - cjgillot:relative-source-file, r=oli-obk 2023-09-05 21:03:56 +00:00
llvm-project@0537f6354c Update LLVM submodule to 17.0.0-rc4 2023-09-05 18:34:53 +00:00
rustdoc-json-types rustdoc-json: Rename typedef to type alias 2023-08-21 14:02:34 -07:00
tools Update cargo 2023-09-06 12:58:59 +08:00
README.md Remove stale reference to the test suite location 2023-01-13 11:49:06 +00:00
stage0.json Update stage0 to next beta 2023-08-22 06:58:03 -04:00
version Bump version to 1.74.0 2023-08-20 14:02:00 -04:00

README.md

This directory contains some source code for the Rust project, including:

  • The bootstrapping build system
  • Various submodules for tools, like cargo, tidy, etc.

For more information on how various parts of the compiler work, see the rustc dev guide.