create-bfe-cttq/packages/cli/util/renderTemplate.js

CTTQ大前端脚手架项目

const fs = require('fs')
const path = require('path')
const deepMerge = require("./deepMerge.js")
const sortDependencies = require("./sortDependencies.js")

/**
 * Renders a template folder/file to the file system,
 * by recursively copying all files under the `src` directory,
 * with the following exception:
 *   - `_filename` should be renamed to `.filename`
 *   - Fields in `package.json` should be recursively merged
 * @param {string} src source filename to copy
 * @param {string} dest destination filename of the copy operation
 */
function renderTemplate(src, dest, excludes = []) {
	let excludesFile = (excludes || []).filter((item) => src.endsWith(item));
	if (excludesFile.length > 0) {
		return;
	}
	const stats = fs.statSync(src);

	const filename = path.basename(src);
	if (filename.startsWith("_") && !filename.startsWith("__")) {
		// rename `_file` to `.file`
		dest = path.resolve(path.dirname(dest), filename.replace(/^_/, "."));
	} else if (filename.startsWith("__")) {
		dest = path.resolve(path.dirname(dest), filename.replace(/^_/, ""));
	}

	if (stats.isDirectory()) {
		// skip node_module
		if (filename === "node_modules") {
			return;
		}

		// if it's a directory, render its subdirectories and files recursively
		fs.mkdirSync(dest, { recursive: true });
		for (const file of fs.readdirSync(src)) {
			renderTemplate(path.resolve(src, file), path.resolve(dest, file), excludes);
		}
		return;
	}

	if (filename === "package.json" && fs.existsSync(dest)) {
		// merge instead of overwriting
		const existing = JSON.parse(fs.readFileSync(dest, "utf8"));
		const newPackage = JSON.parse(fs.readFileSync(src, "utf8"));
		const pkg = sortDependencies(deepMerge(existing, newPackage));
		fs.writeFileSync(dest, JSON.stringify(pkg, null, 2) + "\n");
		return;
	}

	fs.copyFileSync(src, dest);
}

module.exports = renderTemplate;