version-clean/edition-es5/index.js

Turn a dirty version (such as v1, =1.0.x, >1.0 <2) into a clean version (1.0)

"use strict";
var __values = (this && this.__values) || function(o) {
    var s = typeof Symbol === "function" && Symbol.iterator, m = s && o[s], i = 0;
    if (m) return m.call(o);
    if (o && typeof o.length === "number") return {
        next: function () {
            if (o && i >= o.length) o = void 0;
            return { value: o && o[i++], done: !o };
        }
    };
    throw new TypeError(s ? "Object is not iterable." : "Symbol.iterator is not defined.");
};
Object.defineProperty(exports, "__esModule", { value: true });
exports.default = versionClean;
/**
 * Turn a dirty version (such as `v1`, `=1.0.x`, `>1.0 <2`) into a clean version (1.0)
 * @param dirtyVersion The dirty version to clean
 * @returns The clean version string if possible, otherwise an empty string
 */
function versionClean(dirtyVersion) {
    var e_1, _a;
    var version = String(dirtyVersion);
    // replace everything that isn't relevant with a space, this ensures 1<2 becomes 1 2 rather than 12
    version = version.replace(/[^0-9.]+/g, ' ');
    // replace duplicate dots and trailing dots
    version = version.replace(/\.\.+/g, '.').replace(/\. |\.$/g, ' ');
    // return the first section that is relevant
    var parts = version.split(/ +/);
    try {
        for (var parts_1 = __values(parts), parts_1_1 = parts_1.next(); !parts_1_1.done; parts_1_1 = parts_1.next()) {
            var part = parts_1_1.value;
            if (part)
                return part.trim();
        }
    }
    catch (e_1_1) { e_1 = { error: e_1_1 }; }
    finally {
        try {
            if (parts_1_1 && !parts_1_1.done && (_a = parts_1.return)) _a.call(parts_1);
        }
        finally { if (e_1) throw e_1.error; }
    }
    // failed to parse
    return '';
}