While I will admit Cargo has its uses and seems like a very handy tool, I have some irks about it I feel that might be solvable through some assistance. Before I picked up Rust, with C/C++/C#/Java/etc, if I wrote a piece of code I wanted to try out that was part of a bigger project, often a binary a…

For small pieces of test code, you can run rustc test.rs to produce a binary named test (or test.exe).

I know that much, but what if they require dependencies other than my code? I found myself using the time crate, for example.

You can keep all of your "small" binaries inside one project in a src/bin directory. Then you can run foo.rs with cargo run --bin foo. Speaking of directory layout, you can adjust the Cargo.toml not to use src directory. I think the syntax for that is [[bin]] name = "foo" path = "main.rs" If you …

I see. Not that this is a big inconvenience, but are main.rs and lib.rs required filenames?

[image] Laphicet: are main.rs and lib.rs required filenames? Not really. They are just defaults (lib.rs for libraries, main.rs and bin/foo.rs for binaries). You can rename it to what you want. See this section of cargo manifest description.

Yeah. I've looked into Meson but not much luck there.

You can run quick one-off scripts without Cargo.toml using GitHub - DanielKeep/cargo-script: Cargo script subcommand I have a hunch that Cargo has the customisation I'm looking for, but I can't seem to find anything on Google about it. Even if you could, it would be better to stick to the conven…

Putting Cargo.toml and lib.rs in the same folder is also a common practice for small crates. See here for example. Look at their Cargo.toml to see how they did it.

My reluctance about using Cargo

help

kaj June 15, 2017, 9:55pm 4

You can use dev-dependencies to specify dependencies that will be used for tests and examples but not for the crate itself.

Topic		Replies	Views
Small project, two files in two locations help	12	448	September 30, 2022
Cargo test internal packages help	11	4195	January 12, 2023
Put dependencies in .rs file help	4	727	January 12, 2023
Is it a good idea to have one crate with [[bin]] and [lib]? help	5	2912	January 12, 2023
Running `cargo test` without cargo	3	3302	November 24, 2019

My reluctance about using Cargo

Related topics