cargo-e 0.3.2

e is for Example. A command-line tool for running and exploring source, examples, and binaries from Rust projects. It will run the first example, if no options are given.
Documentation 
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// build.rs

mod build_docs;

fn main() {
    // --- Documentation Copying ---
    // Call our documentation helper to copy media files.
    build_docs::copy_doc_media();
    // --- Fortune Data Path ---
    // If consuming crate enables "funny-docs" (which pulls in the "fortune" feature),
    // set the path to a static fortunes file via env var.
    if std::env::var("CARGO_FEATURE_FUNNY_DOCS").is_ok()
        && std::env::var("E_CRATE_FORTUNE_PATH").is_err()
    {
        let manifest = std::env::var("CARGO_MANIFEST_DIR").expect("CARGO_MANIFEST_DIR not set");
        let default = format!("{}/build_data/fortunes.txt", manifest);
        println!("cargo:rustc-env=E_CRATE_FORTUNE_PATH={}", default);
    }
}