Rustplay Command

This nodejs-based command uses http://play.rust-lang.org to evaluate code.

Results are printed to stdout.

Usage:

Usage:
    rustplay -h | -v
    rustplay [CODE] [-c channel] [-m] [-o level] [-D]

Options:
    CODE                    : Code to evaluate, or file name to read.
                              Leave empty to use stdin.
    -c chan,--channel chan  : Channel to use (nightly or beta).
                              Default: nightly
    -D,--debug              : Debug mode, print more info.
    -h,--help               : Show this message.
    -m,--main               : Wrap code in fn main() {..}.
    -o lvl,--optimize lvl   : Optimization level (0-3).
                              Default: 0
    -v,--version            : Print version and exit.

Examples:

Reading files:

./rustplay.js rustplay_testcode.rs

Simple strings:

./rustplay.js 'fn main() { println!("Hello World!"); }'

Piping source files:

cat rustplay_testcode.rs | ./rustplay.js

There is also a convenience wrapper for testing snippets.

Using -m, the code will be wrapped in fn main() { ..code.. }:

./rustplay.js -m 'println!("Hello from rustplay!")'

Omitting the last semi-colon is okay, it will be added when -m is used.

Requirements:

• Node.js (0.10.25+)
• docopt - (npm install docopt)
• xmlhttprequest - (npm install xmlhttprequest)