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) ----- cc `@dtolnay` r? `@jackh726`		2023-09-07 14:24:46 +00:00
..
src	Auto merge of #114183 - Urgau:stabilize-print-with-path, r=oli-obk	2023-09-07 14:24:46 +00:00
Cargo.toml	replace atty crate with std's isTerminal	2023-07-26 18:09:50 +03:00
messages.ftl	unknown unstable lint command line	2023-08-22 18:58:39 +08:00