mktemp/src/dir.js

mktemp command for node.js

"use strict";
/**
 * @file for directory processing
 */
Object.defineProperty(exports, "__esModule", { value: true });
const fs = require("fs");
const uniqueName = require("./unique_name");
/**
 * try create unique name directory
 *
 * @param {string} template template string for directory name
 * @param {number} retryCount
 * @param {Function} callback
 */
function tryCreateDir(template, retryCount, callback) {
    let dirname = uniqueName.generate(template);
    fs.mkdir(dirname, 448 /*=0700*/, function (err) {
        if (err) {
            if (err.code === 'EEXIST' && retryCount > 0) {
                setImmediate(tryCreateDir, template, retryCount - 1, callback);
                return;
            }
            // dirname set to null if throws error
            dirname = null;
        }
        callback(err, dirname);
    });
}
/**
 * create unique name directory
 *
 * @param {string} template template string for file directory
 * @param {Function} [callback]
 * @return {Promise}
 */
function createDir(template, callback) {
    if (typeof callback !== 'function') {
        return new Promise(function (resolve, reject) {
            createDir(template, (err, dirname) => err ? reject(err) : resolve(dirname));
        });
    }
    const retryCount = uniqueName.getOutcomeCount(template);
    tryCreateDir(template, retryCount, callback);
}
exports.createDir = createDir;
/**
 * sync version createDir
 *
 * @param {string} template template string for directory name
 * @throws {Error} if caught error
 * @return {string} dirname
 */
function createDirSync(template) {
    let dirname;
    let isExist;
    let retryCount = uniqueName.getOutcomeCount(template);
    do {
        isExist = false;
        retryCount -= 1;
        dirname = uniqueName.generate(template);
        try {
            fs.mkdirSync(dirname, 448 /*=0700*/);
        }
        catch (e) {
            if (e.code === 'EEXIST' && retryCount > 0) {
                isExist = true;
            }
            else {
                throw e;
            }
        }
    } while (isExist);
    return dirname;
}
exports.createDirSync = createDirSync;
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