gatsby-plugin-purgecss/shared.js

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.stats = void 0;
const utils_1 = require("./utils");
const PRECISION = 2;
const KiB = 1024;
const HUNDRED = 100;
class Stats {
    constructor() {
        this.totalCssSize = 0;
        this.purgedCssSize = 0;
    }
    addSize(css) {
        this.totalCssSize = this.totalCssSize + Buffer.byteLength(css, 'utf8');
    }
    addRemovedSize(css) {
        this.purgedCssSize = this.purgedCssSize + Buffer.byteLength(css, 'utf8');
    }
    toKB(value) {
        return (value / KiB).toFixed(PRECISION);
    }
    get sizeDifference() {
        return this.toKB(this.totalCssSize - this.purgedCssSize);
    }
    get newSize() {
        return this.toKB(this.purgedCssSize);
    }
    get oldSize() {
        return this.toKB(this.totalCssSize);
    }
    get percentChange() {
        if (this.totalCssSize <= 0) {
            return '0.00';
        }
        return (((this.totalCssSize - this.purgedCssSize) / this.totalCssSize) *
            HUNDRED).toFixed(PRECISION);
    }
    printStats() {
        console.log(utils_1.color.FgGreen, `\ngatsby-plugin-purgecss:`);
        console.log(utils_1.color.FgCyan, `Previous CSS Size: ${this.oldSize} KB`);
        console.log(utils_1.color.FgCyan, `New CSS Size: ${this.newSize} KB (-${this.percentChange}%)`);
        console.log(utils_1.color.FgYellow, `Removed ~${this.sizeDifference} KB of CSS`);
        console.log(utils_1.color.Reset);
    }
}
exports.stats = new Stats();