@jsbits/get-package-version/index.js

Get the version of the package.json file found in the given directory or in one of its parents.

"use strict";
var path = require("path");
var fs = require("fs");
/**
 * Returns the version on package.json file, if it exists.
 *
 * @param {string} pkgPath Path to check out.
 * @returns {string|undefined} Version
 * @private
 */
var extractVersion = function (pkgPath) {
    var pkgname = path.join(pkgPath, 'package.json');
    var version;
    // Try to get the version if package.json exists.
    if (fs.existsSync(pkgname)) {
        try {
            version = require(pkgname).version;
        }
        catch ( /**/_a) { /**/ }
    }
    return version;
};
/**
 * Returns the version of the first package.json file found in the given
 * directory or in one of its parents.
 *
 * - If you don't provide a path, the search starts in the current one.
 * - The provided path can be relative to the current working directory.
 * - Packages with a missing or empty `version` property are ignored.
 *
 * @param {string} [pkgPath=.] Initial directory to search, defaults to `process.cwd()`.
 * @returns {string} The package version, or an empty string if it could not be found.
 * @since 1.0.0
 */
var getPackageVersion = function _getPackageVersion(pkgPath) {
    // Start with the current working directory, with normalized slashes
    pkgPath = (pkgPath ? path.resolve(pkgPath) : process.cwd()).replace(/\\/g, '/');
    while (~pkgPath.indexOf('/')) {
        // Try to get the version, the package may not contain one.
        var version = extractVersion(pkgPath);
        if (version) {
            return version;
        }
        // package.json not found or does not contains version, move up
        pkgPath = pkgPath.replace(/\/[^/]*$/, '');
    }
    return '';
};
module.exports = getPackageVersion;
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