Is there a cargo command that does this: "I have this package named X, I want to install the dependency, add it to Cargo.toml, and I don't care about the version, just add the latest stable one."
I dont want to manually add dependencies in Cargo.toml and have to look up their versions every single time.
In Node.js / npm when I want to install a package and I don't care about its version, I use the command npm install <package>. This results in the package dependency being installed in the node_modules/ directory and the package + version pair being added in the package.json file under the dependencies key. Before npm@5.0.0, you had to use the --save option, to automatically add the dependency to package.json, on top of already copying to node_modules/ from the registry.
Rust's equivalent to npm is cargo, and the package.json equivalent is Cargo.toml.
Here's what I've tried:
$ cargo install actix-files
Updating crates.io index
error: specified package `actix-files v0.2.1` has no binaries
Well obviously actix-file has no binaries, because it's a library. And if we have the version already, why not just add actix-files = "0.2.1" to my Cargo.toml file? The documentation mentions nothing like this.