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bors d9e462fd97 Auto merge of #12953 - stanciuadrian:fmt, r=lnicola 
Run stable `fmt` & `cargo` through `rustup`

`cargo test -p ide-assists` fails on Windows/x64/nightly:

```shell
> rustup self update
info: checking for self-updates
  rustup unchanged - 1.25.1

> rustup update
info: syncing channel updates for 'stable-x86_64-pc-windows-msvc'
info: syncing channel updates for 'nightly-x86_64-pc-windows-msvc'
info: checking for self-updates

   stable-x86_64-pc-windows-msvc unchanged - rustc 1.62.1 (e092d0b6b 2022-07-16)
  nightly-x86_64-pc-windows-msvc unchanged - rustc 1.64.0-nightly (affe0d3a0 2022-08-05)

info: cleaning up downloads & tmp directories

> rustup show
Default host: x86_64-pc-windows-msvc
rustup home:  C:\Users\stanc\.rustup

installed toolchains
--------------------

stable-x86_64-pc-windows-msvc
nightly-x86_64-pc-windows-msvc (default)

active toolchain
----------------

nightly-x86_64-pc-windows-msvc (default)
rustc 1.64.0-nightly (affe0d3a0 2022-08-05)

> cargo test -p ide-assists

test tests::sourcegen::sourcegen_assists_docs ... FAILED

failures:

---- tests::sourcegen::sourcegen_assists_docs stdout ----
thread 'tests::sourcegen::sourcegen_assists_docs' panicked at 'Failed to run rustfmt from toolchain 'stable'. Please run `rustup component add rustfmt --toolchain stable` to install it.', crates\sourcegen\src\lib.rs:141:9
note: run with `RUST_BACKTRACE=1` environment variable to display a backtrace

failures:
    tests::sourcegen::sourcegen_assists_docs

test result: FAILED. 1576 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 1.82s

error: test failed, to rerun pass '-p ide-assists --lib'
```

After some investigation it seemed that [`cmd!`](51705698bd/crates/sourcegen/src/lib.rs (L139)) didn't execute the expected (stable) rustfmt.

A simple `xshell` test failed too:

```rust
use xshell::{cmd, Shell};

fn main() {
    let sh = &Shell::new().unwrap();
    sh.set_var("RUSTUP_TOOLCHAIN", "stable");
    let version = cmd!(sh, "rustfmt --version").read().unwrap_or_default();
    println!("{version}");
}
```

Bypassing `xshell` and using `Command` directly failed too:

```rust
use std::process::{Command, Stdio};

fn main() {
    let child = Command::new("rustfmt")
        .arg("--version")
        .stdin(Stdio::null())
        .stdout(Stdio::piped())
        .env("RUSTUP_TOOLCHAIN", "stable")
        .spawn()
        .expect("failed to start");
    let output = child.wait_with_output().unwrap();
    let version = String::from_utf8_lossy(&output.stdout);
    println!("{version}");
}
```

Spawning `cargo +stable fmt version` [failed too](https://github.com/rust-lang/rustup/issues/3036) with `error: no such subcommand: +stable`.

Only `rustup run stable` worked fine for both `cargo` and `fmt`.

Thanks to `@lnicola` for a live investigation session, hints and tips.
2022-08-06 15:02:30 +00:00
.cargo Add CARGO_WORKSPACE_DIR env var in .cargo/config.toml 2022-07-19 13:02:16 +02:00
.github Update bug_report.md 2022-08-05 09:04:27 +02:00
.vscode Add "Win Attach to Server" debug configuration 2021-01-25 17:46:03 +03:00
assets Automatically change text color in logo based on dark mode 2022-03-06 23:06:53 +11:00
bench_data Add benchmark test for mbe 2021-02-25 05:47:13 +08:00
crates run stable fmt through rustup 2022-08-06 17:25:02 +03:00
docs Fix r-a spelling in some places 2022-08-01 13:47:09 +02:00
editors/code Auto merge of #12934 - Veykril:typing, r=Veykril 2022-08-03 16:23:49 +00:00
lib Impl entry-API for la_arena::ArenaMap 2022-08-03 18:31:52 +08:00
xtask Use the release branch in xtask promote 2022-08-03 09:48:44 +03:00
.editorconfig prettier config 2022-05-17 18:12:49 +01:00
.git-blame-ignore-revs add prettier format commit to ignored revisions 2022-05-17 18:15:51 +01:00
.gitattributes Fix .gitattributes for test_data 2022-07-24 14:05:35 +02:00
.gitignore internal: add "Shuffle Crate Graph" command 2021-12-07 16:37:19 +01:00
Cargo.lock Add a proc-macro-srv-cli crate 2022-07-25 15:19:57 +02:00
Cargo.toml style: rename crates to kebab case 2022-05-01 10:48:58 +00:00
LICENSE-APACHE Licenses 2018-01-10 22:47:04 +03:00
LICENSE-MIT Licenses 2018-01-10 22:47:04 +03:00
PRIVACY.md Update privacy note 2021-12-23 14:04:15 +02:00
README.md Fix r-a spelling in some places 2022-08-01 13:47:09 +02:00
rustfmt.toml Remove forcing \n via rustfmt 2019-11-02 22:19:59 +03:00
triagebot.toml Add triagebot.toml 2022-04-21 17:43:12 +02:00

README.md

rust-analyzer logo

rust-analyzer is a modular compiler frontend for the Rust language. It is a part of a larger rls-2.0 effort to create excellent IDE support for Rust.

Quick Start

https://rust-analyzer.github.io/manual.html#installation

Documentation

If you want to contribute to rust-analyzer or are just curious about how things work under the hood, check the ./docs/dev folder.

If you want to use rust-analyzer's language server with your editor of choice, check the manual folder. It also contains some tips & tricks to help you be more productive when using rust-analyzer.

Security and Privacy

See the corresponding sections of the manual.

Communication

For usage and troubleshooting requests, please use "IDEs and Editors" category of the Rust forum:

https://users.rust-lang.org/c/ide/14

For questions about development and implementation, join rust-analyzer working group on Zulip:

https://rust-lang.zulipchat.com/#narrow/stream/185405-t-compiler.2Frust-analyzer

Quick Links

License

rust-analyzer is primarily distributed under the terms of both the MIT license and the Apache License (Version 2.0).

See LICENSE-APACHE and LICENSE-MIT for details.