rips 0.1.0

Rust bindings for libvips
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#[derive(Debug)]
struct IgnoreMacros(std::collections::HashSet<&'static str>);

impl bindgen::callbacks::ParseCallbacks for IgnoreMacros {
    fn will_parse_macro(&self, name: &str) -> bindgen::callbacks::MacroParsingBehavior {
        if self.0.contains(name) {
            bindgen::callbacks::MacroParsingBehavior::Ignore
        } else {
            bindgen::callbacks::MacroParsingBehavior::Default
        }
    }
}

fn main() {

    let pkg = pkg_config::probe_library("vips").expect("Could not find libvips");

    let out_path = std::path::PathBuf::from(std::env::var("OUT_DIR").unwrap()).join("bindings.rs");

    let ignored_macros = IgnoreMacros(
        vec![
            "FP_INFINITE",
            "FP_NAN",
            "FP_NORMAL",
            "FP_SUBNORMAL",
            "FP_ZERO",
        ]
        .into_iter()
        .collect(),
    );


    let mut builder = bindgen::Builder::default();

    for path in pkg.include_paths.iter()
        .filter_map(|p| p.to_str()) {
        
        builder = builder.clang_arg("-I");
        builder = builder.clang_arg(path);
    }

    let bindings = builder
        .derive_debug(true)
        .impl_debug(true)
        .default_enum_style(bindgen::EnumVariation::Rust { non_exhaustive: false })
        .header_contents("wrapper.h", "#include \"vips/vips.h\"")
        .parse_callbacks(Box::new(ignored_macros))
        .rustfmt_bindings(true)
        .generate()
        .unwrap();

    bindings.write_to_file(out_path).unwrap();

}