piral-cli/lib/rules/pilet-stays-small.js

The standard CLI for creating and building a Piral instance or a Pilet.

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.default = default_1;
const fs_1 = require("fs");
const path_1 = require("path");
const common_1 = require("../common");
async function getPiletMainPath(main, baseDir) {
    const paths = [main, `dist/${main}`, `${main}/index.js`, `dist/${main}/index.js`, 'index.js', 'dist/index.js'];
    for (const path of paths) {
        const filePath = (0, path_1.resolve)(baseDir, path);
        const exists = await (0, common_1.checkExists)(filePath);
        if (exists) {
            return filePath;
        }
    }
    return undefined;
}
function getFileSizeInKB(path) {
    return new Promise((resolve, reject) => {
        (0, fs_1.stat)(path, (err, stats) => {
            if (err) {
                reject(err);
            }
            else if (stats.isFile()) {
                // convert from bytes to kB
                resolve(stats.size / 1024);
            }
            else {
                reject(new Error('The given path is invalid. It must lead to a valid file'));
            }
        });
    });
}
/**
 * Checks if the main bundle of the pilet is not exceeding a given threshold.
 * The pilet must have been built beforehand for this validation to be conclusive.
 *
 * Negative values yield a warning if the absolute size in kB is exceeded.
 *
 * Positive values yield an error if the absolute size in kB is exceeded.
 *
 * A value of 0 turns this validation off.
 *
 * By default, a pilet's main bundle exceeding 50 kB will result in a warning.
 */
async function default_1(context, options = -50) {
    if (options !== 0 && typeof options === 'number') {
        const maxSize = Math.abs(options);
        const { main } = context.piletPackage;
        const path = await getPiletMainPath(main, context.root);
        if (path) {
            const size = await getFileSizeInKB(path);
            if (size > maxSize) {
                const notify = options > 0 ? context.error : context.warning;
                notify(`
The main bundle is too large.
  Maximum: ${maxSize} kB.
  Received: ${size} kB.
`);
            }
        }
    }
}
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