Hello Typescript!

hydro/utils.ts

@@ -0,0 +1,155 @@
+import fs from 'fs';
+import cluster from 'cluster';
+import path from 'path';
+import * as superagent from 'superagent';
+import proxy from 'superagent-proxy';
+
+declare global {
+    interface StringConstructor {
+        random: (digit?: number) => string;
+    }
+    interface ArrayConstructor {
+        isDiff: (a: any[], b: any[]) => boolean;
+    }
+    interface Date {
+        format: (fmt?: string) => string;
+    }
+    interface Math {
+        sum: (...args: Array<number[] | number>) => number;
+    }
+    interface SetConstructor {
+        isSuperset: (set: Set<any>, subset: Set<any>) => boolean;
+        intersection: <T>(setA: Set<T>, setB: Set<T>) => Set<T>;
+        union: <T>(setA: Set<T>, setB: Set<T>) => Set<T>;
+    }
+}
+
+proxy(superagent);
+
+if (!cluster.worker) {
+    // @ts-ignore
+    cluster.worker = { id: 0 };
+}
+
+const dict = 'abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ1234567890';
+
+String.random = function random(digit = 32) {
+    let str = '';
+    for (let i = 1; i <= digit; i++) str += dict[Math.floor(Math.random() * 62)];
+    return str;
+};
+
+Array.isDiff = function isDiff(a, b) {
+    if (a.length !== b.length) return true;
+    a.sort();
+    b.sort();
+    for (const i in a) {
+        if (a[i] !== b[i]) return true;
+    }
+    return false;
+};
+
+Date.prototype.format = function formatDate(fmt = '%Y-%m-%d %H:%M:%S') {
+    let h = this.getHours();
+    if (h < 10) h = `0${h}`;
+    let m = this.getMinutes();
+    if (m < 10) m = `0${m}`;
+    let s = this.getSeconds();
+    if (s < 10) s = `0${s}`;
+    return fmt
+        .replace('%Y', this.getFullYear())
+        .replace('%m', this.getMonth() + 1)
+        .replace('%d', this.getDate())
+        .replace('%H', h)
+        .replace('%M', m)
+        .replace('%S', s);
+};
+
+Math.sum = function sum(...args) {
+    let s = 0;
+    for (const i of args) {
+        if (i instanceof Array) {
+            for (const j of i) {
+                s += j;
+            }
+        } else s += i;
+    }
+    return s;
+};
+
+Set.isSuperset = function isSuperset(set, subset) {
+    for (const elem of subset) {
+        if (!set.has(elem)) return false;
+    }
+    return true;
+};
+
+Set.union = function Union<T>(setA: Set<T>, setB: Set<T>) {
+    const union = new Set(setA);
+    for (const elem of setB) union.add(elem);
+    return union;
+};
+
+Set.intersection = function Intersection<T>(setA: Set<T>, setB: Set<T>): Set<T> {
+    const intersection = new Set();
+    for (const elem of setB) {
+        if (setA.has(elem)) intersection.add(elem);
+    }
+    // @ts-ignore
+    return intersection;
+};
+
+export function folderSize(folderPath: string) {
+    let size = 0;
+    const _next = function a(p) {
+        if (p) {
+            const stats = fs.statSync(p);
+            if (!stats.isDirectory() || stats.isSymbolicLink()) {
+                if (!stats.isSymbolicLink()) size += stats.size;
+            } else {
+                size += stats.size;
+                const files = fs.readdirSync(p);
+                if (Array.isArray(files)) {
+                    files.forEach((file) => {
+                        _next(path.join(p, file));
+                    });
+                }
+            }
+        }
+    };
+    _next(folderPath);
+    return size;
+}
+
+const TIME_RE = /^([0-9]+(?:\.[0-9]*)?)([mu]?)s?$/i;
+const TIME_UNITS = { '': 1000, m: 1, u: 0.001 };
+const MEMORY_RE = /^([0-9]+(?:\.[0-9]*)?)([kmg])b?$/i;
+const MEMORY_UNITS = { k: 0.1, m: 1, g: 1024 };
+
+export function parseTimeMS(str) {
+    const match = TIME_RE.exec(str);
+    if (!match) throw new Error(`${str} error parsing time`);
+    return Math.floor(parseFloat(match[1]) * TIME_UNITS[match[2]]);
+}
+
+export function parseMemoryMB(str) {
+    const match = MEMORY_RE.exec(str);
+    if (!match) throw new Error(`${str} error parsing memory`);
+    return Math.floor(parseFloat(match[1]) * MEMORY_UNITS[match[2]]);
+}
+
+export function isClass(obj: any, strict = false) {
+    if (typeof obj !== 'function') return false;
+    const str = obj.toString();
+    if (obj.prototype === undefined) return false;
+    if (obj.prototype.constructor !== obj) return false;
+    if (str.slice(0, 5) === 'class') return true;
+    if (Object.getOwnPropertyNames(obj.prototype).length >= 2) return true;
+    if (/^function\s+\(|^function\s+anonymous\(/.test(str)) return false;
+    if (strict && /^function\s+[A-Z]/.test(str)) return true;
+    if (/\b\(this\b|\bthis[.[]\b/.test(str)) {
+        if (!strict || /classCallCheck\(this/.test(str)) return true;
+        return /^function\sdefault_\d+\s*\(/.test(str);
+    }
+    return false;
+}