#single-file #bundle #merge #source #build

bin+lib rustsourcebundler

Bundle the source code of a rust cargo crate in a single source file

13 releases (8 breaking)

0.11.2 Feb 10, 2023
0.11.0 Oct 23, 2022
0.9.0 Oct 18, 2021
0.6.0 Aug 12, 2018
0.1.1 Jun 27, 2017

#1065 in Command line utilities

MIT license

15KB
241 lines

CI coveralls crates.io

rust-sourcebundler

Bundle the source code of a rust cargo crate in a single source file.

Very useful for sending the source code to a competitive programming site that accept only a single file (codingame, I'm looking at you) and still keeping the cargo structure locally.

Usage

Add the following snippet to your Cargo.toml:

[package]
(...)
build = "build.rs"

[build-dependencies]
rustsourcebundler = { git = "https://github.com/lpenz/rust-sourcebundler" }

And create the file build.rs with the following:

//! Bundle mybin.rs and the crate libraries into singlefile.rs

use std::path::Path;
extern crate rustsourcebundler;
use rustsourcebundler::Bundler;

fn main() -> Result<(), Box<dyn std::error::Error>> {
    let mut bundler: Bundler = Bundler::new(Path::new("src/bin/mybin.rs"),
                                            Path::new("src/bin/singlefile.rs"));
    bundler.crate_name("<crate name>");
    bundler.run()?;
    Ok(())
}

You can use the code inside the example directory of this repository as a starting point.

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Dependencies

~3–4MB
~94K SLoC