Dev Notes

Software Development Resources by David Egan.

Cargo Add for Dependency Management


Rust
David Egan

The cargo add [OPTIONS] <DEP> is a useful command that adds dependencies to a Cargo.toml manifest file.

To install:

cargo install cargo-edit

Usage

In the root of your project run:

cargo add serde

This will add the dependency and update your Cargo.toml file.

For full instructions, run cargo add --help.

Git Setup

If you have overridden your access to a remote git service to use SSH rather than HTTPS, you may need to tweak your ~/.gitconfig.

The problem:

cargo add serde                
    Updating 'https://github.com/rust-lang/crates.io-index' index
Error: failed to acquire username/password from local configuration                                                                                                                                                                                                                                                          
                                                                               
Caused by:                                    
    failed to acquire username/password from local configuration

The solution - add this to ~/.gitconfig:

# existing github.com override
[url "git@github.com:"]
	insteadOf = https://github.com/

# fine-tune the override to avoid issues with cargo-edit
[url "https://github.com/rust-lang/crates.io-index"]
	insteadOf = https://github.com/rust-lang/crates.io-index
comments powered by Disqus