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monaco-editor/build/fs.js

99 lines
2.4 KiB
JavaScript

/*---------------------------------------------------------------------------------------------
* Copyright (c) Microsoft Corporation. All rights reserved.
* Licensed under the MIT License. See License.txt in the project root for license information.
*--------------------------------------------------------------------------------------------*/
//@ts-check
const fs = require('fs');
const path = require('path');
const REPO_ROOT = path.join(__dirname, '../');
const existingDirCache = new Set();
/**
* @param {string} dirname
*/
function ensureDir(dirname) {
/** @type {string[]} */
const dirs = [];
while (dirname.length > REPO_ROOT.length) {
dirs.push(dirname);
dirname = path.dirname(dirname);
}
dirs.reverse();
dirs.forEach((dir) => {
if (!existingDirCache.has(dir)) {
try {
fs.mkdirSync(dir);
} catch (err) {}
existingDirCache.add(dir);
}
});
}
exports.ensureDir = ensureDir;
/**
* Copy a file.
*
* @param {string} _source
* @param {string} _destination
*/
function copyFile(_source, _destination) {
const source = path.join(REPO_ROOT, _source);
const destination = path.join(REPO_ROOT, _destination);
ensureDir(path.dirname(destination));
fs.writeFileSync(destination, fs.readFileSync(source));
console.log(`Copied ${_source} to ${_destination}`);
}
exports.copyFile = copyFile;
/**
* Remove a directory and all its contents.
*
* @param {string} _dirPath
* @param {((filename:string)=>boolean)} [keep]
*/
function removeDir(_dirPath, keep) {
if (typeof keep === 'undefined') {
keep = () => false;
}
const dirPath = path.join(REPO_ROOT, _dirPath);
if (!fs.existsSync(dirPath)) {
return;
}
rmDir(dirPath, _dirPath);
console.log(`Deleted ${_dirPath}`);
/**
* @param {string} dirPath
* @param {string} relativeDirPath
* @returns {boolean}
*/
function rmDir(dirPath, relativeDirPath) {
let keepsFiles = false;
const entries = fs.readdirSync(dirPath);
for (const entry of entries) {
const filePath = path.join(dirPath, entry);
const relativeFilePath = path.join(relativeDirPath, entry);
if (keep(relativeFilePath)) {
keepsFiles = true;
continue;
}
if (fs.statSync(filePath).isFile()) {
fs.unlinkSync(filePath);
} else {
keepsFiles = rmDir(filePath, relativeFilePath) || keepsFiles;
}
}
if (!keepsFiles) {
fs.rmdirSync(dirPath);
}
return keepsFiles;
}
}
exports.removeDir = removeDir;