build.rs

use std::{env, fs, path::Path};
use typify::{TypeSpace, TypeSpaceSettings};

fn main() {
    generate("2024-11-05");
}

fn generate(version: &str) {
    let schema_path = format!("./spec/{}-schema.json", version);
    let content = std::fs::read_to_string(schema_path).unwrap();
    let schema = serde_json::from_str::<schemars::schema::RootSchema>(&content).unwrap();

    let mut type_space = TypeSpace::new(
        TypeSpaceSettings::default()
            .with_struct_builder(false)
            .with_derive("PartialEq".to_string()),
    );
    type_space.add_root_schema(schema).unwrap();

    let contents = syn::parse2::<syn::File>(type_space.to_stream()).unwrap();
    let contents = prettyplease::unparse(&contents);

    let file_name = format!("src/v{}/types.rs", version.replace("-", "_"));
    let mut out_file = Path::new(&env::var("CARGO_MANIFEST_DIR").unwrap()).to_path_buf();
    out_file.push(file_name);

    fs::write(out_file, contents).unwrap();
}