Initial commit

2018-09-17 20:32:19 +08:00
commit 3a9804f020
58 changed files with 31566 additions and 0 deletions
@@ -0,0 +1,159 @@
+'use strict';
+
+// we cannot use semver here, because dependencies are not installed yet
+// so the version checks get a bit messy
+
+const fs = require('fs');
+const path = require('path');
+const child_process = require('child_process');
+const os = require('os');
+
+// where yunkong2 is installed
+const rootDir = __dirname.substr(0, __dirname.lastIndexOf('node_modules'));
+
+
+function checkNpmVersion() {
+	// Get npm version
+	try {
+		// remove local node_modules\.bin dir from path
+		// or we potentially get a wrong npm version
+		let newEnv = Object.assign({}, process.env);
+		newEnv.PATH = (newEnv.PATH || newEnv.Path || newEnv.path)
+			.split(path.delimiter)
+			.filter(dir => {
+				dir = dir.toLowerCase();
+				return !(dir.indexOf('yunkong2') > -1 && dir.indexOf(path.join('node_modules', '.bin')) > -1);
+
+			})
+			.join(path.delimiter);
+
+		let npmVersion = child_process.execSync('npm -v', {encoding: 'utf8', env: newEnv});
+		npmVersion = npmVersion.trim();
+		console.log('NPM version: ' + npmVersion);
+
+		if (gte(npmVersion, '5.0.0') && lt(npmVersion, '5.7.1')) {
+			console.warn('!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!');
+			console.warn('WARNING:');
+			console.warn('You are using an unsupported npm version!');
+			console.warn('This can lead to problems when installing further packages');
+			console.warn();
+			console.warn('Please use "npm install -g npm@4" to downgrade npm to 4.x or ');
+			console.warn('use "npm install -g npm@latest" to install a supported version of npm 5!');
+			console.warn('You need to make sure to repeat this step after installing an update to NodeJS and/or npm.');
+			console.warn('!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!');
+		}
+		return npmVersion;
+	} catch (e) {
+		console.error('Could not check npm version: ' + e);
+		console.error('Assuming that correct version is installed.');
+		process.exit(0);
+	}
+}
+
+if (gte(checkNpmVersion(), '5.0.0')) {
+	// disables NPM's package-lock.json on NPM >= 5 because that creates heaps of problems
+	console.log('npm version >= 5: disabling package-lock');
+	fs.writeFileSync(path.join(rootDir, '.npmrc'), 'package-lock=false' + os.EOL, 'utf8');
+}
+
+process.exit(0);
+
+// ======================================
+// all the functions to replace `semver`:
+
+/**
+ * @typedef {{major: number, minor: number, build: number}} Version
+ */
+/**
+ * Parses a version string
+ * @param {string} version The version string to parse
+ * @returns {Version | null} The parsed version
+ */
+function parseVersion(version) {
+	const versionRegExp = /^v?(\d+)\.(\d+)\.(\d+).*?/;
+	const parsed = versionRegExp.exec(version);
+	if (!parsed) return null;
+
+	return {
+		major: +parsed[1],
+		minor: +parsed[2],
+		build: +parsed[3]
+	};
+}
+
+/**
+ * Checks if v1 > v2
+ * @param {Version | string} v1 
+ * @param {Version | string} v2 
+ */
+function gt(v1, v2) {
+	if (typeof v1 === "string") v1 = parseVersion(v1);
+	if (typeof v2 === "string") v2 = parseVersion(v2);
+
+	if (v1.major > v2.major) return true;
+	else if (v1.major < v2.major) return false;
+
+	if (v1.minor > v2.minor) return true;
+	else if (v1.minor < v2.minor) return false;
+
+	return (v1.build > v2.build);
+}
+
+/**
+ * Checks if v1 < v2
+ * @param {Version | string} v1 
+ * @param {Version | string} v2 
+ */
+function lt(v1, v2) {
+	if (typeof v1 === "string") v1 = parseVersion(v1);
+	if (typeof v2 === "string") v2 = parseVersion(v2);
+
+	if (v1.major < v2.major) return true;
+	else if (v1.major > v2.major) return false;
+
+	if (v1.minor < v2.minor) return true;
+	else if (v1.minor > v2.minor) return false;
+
+	return (v1.build < v2.build);
+}
+
+/**
+ * Checks if v1 == v2
+ * @param {Version | string} v1 
+ * @param {Version | string} v2 
+ */
+function eq(v1, v2) {
+	if (typeof v1 === "string") v1 = parseVersion(v1);
+	if (typeof v2 === "string") v2 = parseVersion(v2);
+
+	if (v1.major !== v2.major) return false;
+	if (v1.minor !== v2.minor) return false;
+	return v1.build === v2.build;
+}
+
+/**
+ * Checks if v1 != v2
+ * @param {Version | string} v1 
+ * @param {Version | string} v2 
+ */
+function ne(v1, v2) {
+	return !eq(v1, v2);
+}
+
+/**
+ * Checks if v1 >= v2
+ * @param {Version | string} v1 
+ * @param {Version | string} v2 
+ */
+function gte(v1, v2) {
+	return gt(v1, v2) || eq(v1, v2);
+}
+
+/**
+ * Checks if v1 <= v2
+ * @param {Version | string} v1 
+ * @param {Version | string} v2 
+ */
+function lte(v1, v2) {
+	return lt(v1, v2) || eq(v1, v2);
+}