cargo-limit
Cargo wrapper which limits compiler messages number. Error messages come first.
Installation
cargo install cargo-limit
Usage
Run any of these in your project:
cargo lbench [--limit-messages=N]
cargo lbuild [--limit-messages=N]
cargo lcheck [--limit-messages=N]
cargo lclippy [--limit-messages=N]
cargo lrun [--limit-messages=N]
cargo ltest [--limit-messages=N]
Why?
It's a workaround for this issue. Consider a program:
It's counterproductive to read this kind of compiler noise in attempt to run the program:
$ cargo run
Compiling hello v0.1.0 (/tmp/hello)
warning: variable `i` is assigned to, but never used
--> src/main.rs:6:9
|
6 | let mut i: u32 = 0;
| ^^^^^
|
= note: `#[warn(unused_variables)]` on by default
= note: consider using `_i` instead
warning: value assigned to `i` is never read
--> src/main.rs:7:5
|
7 | i -= 1;
| ^
|
= note: `#[warn(unused_assignments)]` on by default
= help: maybe it is overwritten before being read?
warning: unused `std::result::Result` that must be used
--> src/main.rs:8:5
|
8 | f();
| ^^^^
|
= note: `#[warn(unused_must_use)]` on by default
= note: this `Result` may be an `Err` variant, which should be handled
error: this arithmetic operation will overflow
--> src/main.rs:7:5
|
7 | i -= 1;
| ^^^^^^ attempt to compute `0_u32 - 1_u32` which would overflow
|
= note: `#[deny(arithmetic_overflow)]` on by default
error: aborting due to previous error; 3 warnings emitted
error: could not compile `hello`.
To learn more, run the command again with --verbose.
All we want on this development iteration is to focus on this error:
$ cargo lrun
Compiling hello v0.1.0 (/tmp/hello)
error: this arithmetic operation will overflow
--> src/main.rs:7:5
|
7 | i -= 1;
| ^^^^^^ attempt to compute `0_u32 - 1_u32` which would overflow
|
= note: `#[deny(arithmetic_overflow)]` on by default
error: could not compile `hello`.
To learn more, run the command again with --verbose.
License
MIT/Apache-2.0