build.rs

// SPDX-FileCopyrightText: 2022 Klarälvdalens Datakonsult AB, a KDAB Group company <info@kdab.com>
// SPDX-FileContributor: Andrew Hayzen <andrew.hayzen@kdab.com>
//
// SPDX-License-Identifier: MIT OR Apache-2.0

use cxx_qt_build::CxxQtBuilder;

fn main() {
    let feature_qt_gui_enabled = std::env::var("CARGO_FEATURE_QT_GUI").is_ok();
    let feature_qt_qml_enabled = std::env::var("CARGO_FEATURE_QT_QML").is_ok();
    let emscripten_targeted = match std::env::var("CARGO_CFG_TARGET_OS") {
        Ok(val) => val == "emscripten",
        Err(_) => false,
    };

    let mut rust_bridges = vec![
        "core/qbytearray",
        "core/qcoreapplication",
        "core/qdate",
        "core/qhash/qhash_i32_qbytearray",
        "core/qhash/qhash_qstring_qvariant",
        "core/qline",
        "core/qlinef",
        "core/qlist/qlist_bool",
        "core/qlist/qlist_f32",
        "core/qlist/qlist_f64",
        "core/qlist/qlist_i8",
        "core/qlist/qlist_i16",
        "core/qlist/qlist_i32",
        "core/qlist/qlist_i64",
        "core/qlist/qlist_qbytearray",
        "core/qlist/qlist_qdate",
        "core/qlist/qlist_qmargins",
        "core/qlist/qlist_qmarginsf",
        "core/qlist/qlist_qpersistentmodelindex",
        "core/qlist/qlist_qpoint",
        "core/qlist/qlist_qpointf",
        "core/qlist/qlist_qrect",
        "core/qlist/qlist_qrectf",
        "core/qlist/qlist_qsize",
        "core/qlist/qlist_qsizef",
        "core/qlist/qlist_qstring",
        "core/qlist/qlist_qtime",
        "core/qlist/qlist_qurl",
        "core/qlist/qlist_qvariant",
        "core/qlist/qlist_u8",
        "core/qlist/qlist_u16",
        "core/qlist/qlist_u32",
        "core/qlist/qlist_u64",
        "core/qmap/qmap_qstring_qvariant",
        "core/qmargins",
        "core/qmarginsf",
        "core/qmodelindex",
        "core/qpersistentmodelindex",
        "core/qpoint",
        "core/qpointf",
        "core/qrect",
        "core/qrectf",
        "core/qset/qset_bool",
        "core/qset/qset_f32",
        "core/qset/qset_f64",
        "core/qset/qset_i8",
        "core/qset/qset_i16",
        "core/qset/qset_i32",
        "core/qset/qset_i64",
        "core/qset/qset_qbytearray",
        "core/qset/qset_qdate",
        "core/qset/qset_qpersistentmodelindex",
        "core/qset/qset_qstring",
        "core/qset/qset_qtime",
        "core/qset/qset_qurl",
        "core/qset/qset_u8",
        "core/qset/qset_u16",
        "core/qset/qset_u32",
        "core/qset/qset_u64",
        "core/qsize",
        "core/qsizef",
        "core/qstring",
        "core/qstringlist",
        "core/qt",
        "core/qtime",
        "core/qurl",
        "core/qvariant/mod",
        "core/qvariant/qvariant_bool",
        "core/qvariant/qvariant_f32",
        "core/qvariant/qvariant_f64",
        "core/qvariant/qvariant_i8",
        "core/qvariant/qvariant_i16",
        "core/qvariant/qvariant_i32",
        "core/qvariant/qvariant_i64",
        "core/qvariant/qvariant_qbytearray",
        "core/qvariant/qvariant_qdate",
        "core/qvariant/qvariant_qmodelindex",
        "core/qvariant/qvariant_qpersistentmodelindex",
        "core/qvariant/qvariant_qpoint",
        "core/qvariant/qvariant_qpointf",
        "core/qvariant/qvariant_qrect",
        "core/qvariant/qvariant_qrectf",
        "core/qvariant/qvariant_qsize",
        "core/qvariant/qvariant_qsizef",
        "core/qvariant/qvariant_qstring",
        "core/qvariant/qvariant_qstringlist",
        "core/qvariant/qvariant_qtime",
        "core/qvariant/qvariant_qurl",
        "core/qvariant/qvariant_u8",
        "core/qvariant/qvariant_u16",
        "core/qvariant/qvariant_u32",
        "core/qvariant/qvariant_u64",
        "core/qvector/qvector_bool",
        "core/qvector/qvector_f32",
        "core/qvector/qvector_f64",
        "core/qvector/qvector_i8",
        "core/qvector/qvector_i16",
        "core/qvector/qvector_i32",
        "core/qvector/qvector_i64",
        "core/qvector/qvector_qbytearray",
        "core/qvector/qvector_qdate",
        "core/qvector/qvector_qmargins",
        "core/qvector/qvector_qmarginsf",
        "core/qvector/qvector_qpersistentmodelindex",
        "core/qvector/qvector_qpoint",
        "core/qvector/qvector_qpointf",
        "core/qvector/qvector_qrect",
        "core/qvector/qvector_qrectf",
        "core/qvector/qvector_qsize",
        "core/qvector/qvector_qsizef",
        "core/qvector/qvector_qstring",
        "core/qvector/qvector_qtime",
        "core/qvector/qvector_qurl",
        "core/qvector/qvector_qvariant",
        "core/qvector/qvector_u8",
        "core/qvector/qvector_u16",
        "core/qvector/qvector_u32",
        "core/qvector/qvector_u64",
    ];

    if feature_qt_gui_enabled {
        rust_bridges.extend([
            "core/qlist/qlist_qcolor",
            "core/qvariant/qvariant_qcolor",
            "core/qvector/qvector_qcolor",
            "gui/qcolor",
            "gui/qfont",
            "gui/qfontmetrics",
            "gui/qguiapplication",
            "gui/qimage",
            "gui/qpainterpath",
            "gui/qpainter",
            "gui/qpen",
            "gui/qpolygon",
            "gui/qpolygonf",
            "gui/qvector2d",
            "gui/qvector3d",
            "gui/qvector4d",
        ]);
    }

    if feature_qt_qml_enabled {
        rust_bridges.extend(["qml/qqmlapplicationengine", "qml/qqmlengine"]);
    }

    if !emscripten_targeted {
        rust_bridges.extend([
            "core/qdatetime",
            "core/qtimezone",
            "core/qlist/qlist_qdatetime",
            "core/qset/qset_qdatetime",
            "core/qvariant/qvariant_qdatetime",
            "core/qvector/qvector_qdatetime",
        ]);
    }

    let mut cpp_files = vec![
        "core/qbytearray",
        "core/qcoreapplication",
        "core/qdate",
        "core/qhash/qhash",
        "core/qline",
        "core/qlinef",
        "core/qlist/qlist",
        "core/qmap/qmap",
        "core/qmargins",
        "core/qmarginsf",
        "core/qmodelindex",
        "core/qpersistentmodelindex",
        "core/qpoint",
        "core/qpointf",
        "core/qrect",
        "core/qrectf",
        "core/qset/qset",
        "core/qsize",
        "core/qsizef",
        "core/qstring",
        "core/qstringlist",
        "core/qtime",
        "core/qurl",
        "core/qvariant/qvariant",
        "core/qvector/qvector",
    ];

    if feature_qt_gui_enabled {
        cpp_files.extend([
            "gui/qcolor",
            "gui/qfont",
            "gui/qfontmetrics",
            "gui/qguiapplication",
            "gui/qimage",
            "gui/qpainterpath",
            "gui/qpainter",
            "gui/qpen",
            "gui/qpolygon",
            "gui/qpolygonf",
            "gui/qvector2d",
            "gui/qvector3d",
            "gui/qvector4d",
        ]);
    }

    if feature_qt_qml_enabled {
        cpp_files.extend(["qml/qqmlapplicationengine", "qml/qqmlengine"]);
    }

    if !emscripten_targeted {
        cpp_files.extend(["core/qdatetime", "core/qtimezone"]);
    }

    let mut builder = CxxQtBuilder::new();

    for rust_source in &rust_bridges {
        builder = builder.file(format!("src/{rust_source}.rs"));
    }

    builder = builder.cc_builder(move |cc| {
        for cpp_file in &cpp_files {
            cc.file(format!("src/{cpp_file}.cpp"));
            println!("cargo:rerun-if-changed=src/{cpp_file}.cpp");
        }
        cc.file("src/qt_types.cpp");
        println!("cargo:rerun-if-changed=src/qt_types.cpp");
    });
    println!("cargo:rerun-if-changed=src/assertion_utils.h");

    builder.with_opts(cxx_qt_lib_headers::build_opts()).build();
}