Compiling cargo

You'll want to clone cargo using --recursive on git, to clone in it's submodule dependencies.

$ git clone --recursive https://github.com/carlhuda/cargo

or

$ git submodule init
$ git submodule upgrade

Then it's as simple as make and you're ready to go.

Porcelain

cargo-compile

$ cargo compile

This command assumes the following directory structure:

|Cargo.toml
|~src
| | {main,lib}.rs
|~target
| |~x86_64-apple-darwin
| | |~lib
| | | |~[symlinked dependencies]
| | | | [build artifacts]
| |~...

When running cargo compile, Cargo runs the following steps:

• cargo verify --manifest=[location of Cargo.toml]
• ... TODO: dependency resolution and downloading ...
• cargo prepare
• cargo rustc --out-dir=[from Cargo.toml]/[platform] -L [from Cargo.toml]/[platform]/lib ...

Plumbing

cargo-verify

$ cargo verify --manifest=MANIFEST

Verifies that the manifest is in the location specified, in a valid format, and contains all of the required sections.

Success

{ "success": true }

Errors

{
  "invalid": < "not-found" | "invalid-format" >,
  "missing-field": [ required-field... ],
  "missing-source": bool,
  "unwritable-target": bool
}

cargo-rustc

$ cargo rustc --out-dir=LOCATION -L LIBDIR -- ...ARGS

cargo-prepare

Prepare the directories (including symlinking dependency libraries) to be ready for the flags Cargo plans to pass into rustc.

NOTES and OPEN QUESTIONS

• We need to support per-platform calls to make (et al) to build native (mostly C) code. Should this be part of prepare or a different step between prepare and cargo-rustc.