react-virtualized/.babelrc.js at master · LogicSoftware/react-virtualized · GitHub

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const env = process.env.NODE_ENV;

if (env === "commonjs" || env === "es") {
    module.exports = {
        ignore: [
            "*.jest.js",
            "*.e2e.js",
            "*.ssr.js",
            "*.example.js",
            "source/demo",
            "source/jest-*.js",
            "source/TestUtils.js",
        ],
        plugins: [
            "@babel/plugin-transform-runtime",
            "@babel/plugin-proposal-class-properties",
            "@babel/plugin-transform-flow-comments",
            ["flow-react-proptypes", { deadCode: true, useESModules: true }],
            ["transform-react-remove-prop-types", { mode: "wrap" }],
        ],
        presets: [["@babel/preset-env", { modules: false }], "@babel/preset-react", "@babel/preset-flow"],
    };

    if (env === "commonjs") {
        module.exports.plugins.push("@babel/plugin-transform-modules-commonjs");
    }
}

if (env === "rollup") {
    module.exports = {
        comments: false,
        plugins: ["@babel/plugin-external-helpers", "@babel/plugin-proposal-class-properties"],
        presets: [["@babel/preset-env", { modules: false }], "@babel/preset-react", "@babel/preset-flow"],
    };
}

if (env === "development") {
    module.exports = {
        plugins: ["@babel/plugin-proposal-class-properties"],
        presets: ["@babel/preset-react", "@babel/preset-flow"],
    };
}

if (env === "production") {
    module.exports = {
        comments: false,
        plugins: ["@babel/plugin-transform-runtime", "@babel/plugin-proposal-class-properties"],
        presets: ["@babel/preset-env", "@babel/preset-react", "@babel/preset-flow"],
    };
}

if (env === "test") {
    module.exports = {
        comments: false,

        plugins: ["@babel/plugin-transform-modules-commonjs", "@babel/plugin-proposal-class-properties"],
        presets: ["@babel/preset-react", "@babel/preset-flow"],
    };
}