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webpack.helper.mjs
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webpack.helper.mjs
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import { resolve } from "path";
import nodeExternals from "webpack-node-externals";
const isObject = (item) =>
item && typeof item === "object" && !Array.isArray(item);
/* To deep merge a custom config with the default */
const mergeDeep = (target, source) => {
let output = Object.assign({}, target);
if (isObject(target) && isObject(source)) {
Object.keys(source).forEach((key) => {
if (isObject(source[key])) {
if (!(key in target))
Object.assign(output, { [key]: source[key] });
else output[key] = mergeDeep(target[key], source[key]);
} else {
Object.assign(output, { [key]: source[key] });
}
});
}
return output;
};
const defaultConfig = {
module: {
rules: [
{
test: /\.tsx?$/,
use: [
{
loader: "ts-loader",
},
],
exclude: /node_modules/,
},
],
},
resolve: {
symlinks: false,
extensions: [".ts"],
},
externals: [nodeExternals()],
};
const getCustomTsLoaderOptions = (options) => {
return {
test: /\.tsx?$/,
use: [
{
loader: "ts-loader",
options,
},
],
exclude: /node_modules/,
};
};
const getConfigTemplate = (config) => {
const mergedConfig = mergeDeep(defaultConfig, { ...config });
console.log(mergedConfig);
return mergedConfig;
};
const cjsModules = ["commonjs", "commonjs2"];
const getOutput = ({ type, name }) => {
const ext = cjsModules.includes(type) ? "cjs" : "js";
return {
path: resolve("dist"),
filename: `${name || type}.bundle.${ext}`,
library: { type },
};
};
const getResolveFallback = () => ({
fallback: { fs: false, http: false, https: false, url: false, path: false },
});
export {
isObject,
mergeDeep,
getResolveFallback,
getConfigTemplate,
getOutput,
defaultConfig,
getCustomTsLoaderOptions,
};