build.rs

extern crate wayland_scanner;

use std::env;
use std::path::Path;
use std::path::PathBuf;
use std::process::Command;
use wayland_scanner::*;


fn run_bindgen(header: &str, output: &str) {
    let out_path = PathBuf::from(env::var("OUT_DIR").unwrap());

    Command::new("bindgen")
	.args(&["-o", out_path.join(output).to_str().unwrap()])
	.arg("--no-doc-comments")
	.arg("--no-layout-tests")
	.args(&["--new-type-alias", "wl_fixed_t"])
	.args(&["--default-enum-style", "rust_non_exhaustive"])
	.args(&["--bitfield-enum", "weston_keyboard_modifier"])
	.args(&["--bitfield-enum", "wl_shell_surface_resize"])
	.arg(header)
	.arg("--")
	.arg("-I/usr/include/pixman-1")
	.arg("-I./subprojects/weston/include")
	.arg("-I./bindgen/block")
	.status().unwrap();
}

fn main() {
    let protocols = [
        "wayland",
        "linux-dmabuf-unstable-v1",
        "croscomp",
        "alpha-compositing-unstable-v1",
        "aura-shell",
        "cursor-shapes-unstable-v1",
        "gaming-input-unstable-v2",
        "keyboard-configuration-unstable-v1",
        "keyboard-extension-unstable-v1",
        "pointer-gestures-unstable-v1",
        "remote-shell-unstable-v1",
        "secure-output-unstable-v1",
        "stylus-tools-unstable-v1",
        "stylus-unstable-v2",
        "vsync-feedback-unstable-v1",
    ];

    let out_dir_str = env::var("OUT_DIR").unwrap();
    let out_dir = Path::new(&out_dir_str);
    for e in &protocols {
        let spec = Path::new("protocol").join(e).with_extension("xml");
        let out = out_dir.join(e).with_extension("rs");
        println!("cargo:rerun-if-changed={}", spec.to_str().unwrap());
        println!("// out: {}", out.to_str().unwrap());
        generate_code_with_destructor_events(spec, out, Side::Server, &[("wl_callback", "done")]);
    }

    Command::new("pwd").status().unwrap();

    run_bindgen("/usr/include/linux/input.h", "input.rs");
    run_bindgen("./subprojects/weston/croscomp_weston.h", "croscomp_weston.rs");

    let lib_paths = [
        "weston/compositor",
        "weston/desktop-shell",
        "weston/libweston",
        "libinput",
        "libevdev",
    ];

    let build_dir = env::var("MESON_BUILD_DIR").unwrap();
    for p in &lib_paths {
        println!("cargo:rustc-flags=-L{}/subprojects/{}", build_dir, p);
    }

    println!("cargo:rustc-link-lib=exec_weston");
    println!("cargo:rustc-link-lib=desktop-shell");
    println!("cargo:rustc-link-lib=weston-9");
    println!("cargo:rustc-link-lib=input");
    println!("cargo:rustc-link-lib=evdev-fdo");
    println!("cargo:rustc-link-lib=wayland-server");
    println!("cargo:rustc-link-lib=pixman-1");
}