dhttp-home 0.3.0

Local identity home and profile management for DHttp
Documentation 
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use std::{env, fs, path::PathBuf};

const GLOBAL_HOME_ENV: &str = "DHTTP_GLOBAL_HOME";

fn main() {
    let out_dir = PathBuf::from(env::var("OUT_DIR").expect("OUT_DIR is set by cargo"));
    let bootstrap = format!(
        "// @generated by build.rs; do not edit.\n\
         pub const DHTTP_GLOBAL_HOME: Option<&str> = {};\n",
        option_expr(env::var(GLOBAL_HOME_ENV).ok().as_deref())
    );

    fs::write(out_dir.join("bootstrap.rs"), bootstrap)
        .expect("failed to write generated dhttp-home bootstrap constants");

    println!("cargo::rerun-if-env-changed={GLOBAL_HOME_ENV}");
}

fn option_expr(value: Option<&str>) -> String {
    match value {
        Some(value) => format!("Some({value:?})"),
        None => "None".to_owned(),
    }
}