libknot-sys 0.1.4

extern crate bindgen;

use std::env;
use std::path::PathBuf;
use bindgen::callbacks::{EnumVariantValue, ParseCallbacks};

#[derive(Debug)]
struct Callbacks;

impl ParseCallbacks for Callbacks {
    fn enum_variant_name(&self, enum_name: Option<&str>, original_variant_name: &str, _variant_value: EnumVariantValue) -> Option<String> {
        if enum_name == Some("knot_ctl_idx_t") && original_variant_name == "KNOT_CTL_IDX_FILTER" {
            Some("KNOT_CTL_IDX_FILTERS".to_owned())
        } else {
            None
        }
    }
}

fn main() {
    println!("cargo:rustc-link-lib=knot");
    let bindings = bindgen::Builder::default()
        .header("/usr/include/libknot/libknot.h")
        .allowlist_type("knot_.*")
        .allowlist_function("knot_.*")
        .allowlist_var("(KNOT|knot)_.*")
        .rustified_enum(".*_idx_t")
        .raw_line("#[allow(bad_style)]")
        .parse_callbacks(Box::new(Callbacks))
        .generate()
        .expect("Unable to generate bindings");

    let out_path = PathBuf::from(env::var("OUT_DIR").unwrap());
    bindings.write_to_file(out_path.join("bindings.rs"))
        .expect("Could not write bindings");
}