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Break CLI process when Node is not supported #851

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rosen-vladimirov merged 1 commit into from
Dec 6, 2016
Merged

Break CLI process when Node is not supported #851

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31 changes: 17 additions & 14 deletions verify-node-version.ts
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Original file line number Diff line number Diff line change
@@ -1,29 +1,32 @@

// This function must be separate to avoid dependencies on C++ modules - it must execute precisely when other functions cannot

import {EOL} from "os";
import * as semver from "semver";
// Use only ES5 code here - pure JavaScript can be executed with any Node.js version (even 0.10, 0.12).
/* tslint:disable:no-var-keyword no-var-requires */
var os = require("os"),
semver = require("semver"),
util = require("util");

// These versions cannot be used with CLI due to bugs in the node itself.
// We are absolutely sure we cannot work with them, so inform the user if he is trying to use any of them and exit the process.
let versionsCausingFailure = ["0.10.34", "4.0.0", "4.2.0", "5.0.0"];
var versionsCausingFailure = ["0.10.34", "4.0.0", "4.2.0", "5.0.0"];
var minimumRequiredVersion = "4.2.1";

export function verifyNodeVersion(supportedVersionsRange: string, cliName: string, deprecationVersion: string): void {
export function verifyNodeVersion(supportedVersionsRange: string, cliName: string): void {
// The colors module should not be assigned to variable because the lint task will fail for not used variable.
require("colors");
let nodeVer = process.version.substr(1);

if (versionsCausingFailure.indexOf(nodeVer) !== -1) {
console.error(`${EOL}Node.js '${nodeVer}' is not supported. To be able to work with ${cliName} CLI, install any Node.js version in the following range: ${supportedVersionsRange}.${EOL}`.red.bold);
var nodeVer = process.version.substr(1);

if (versionsCausingFailure.indexOf(nodeVer) !== -1 || !semver.valid(nodeVer) || semver.lt(nodeVer, minimumRequiredVersion)) {
console.error(util.format("%sNode.js '%s' is not supported. To be able to work with %s CLI, install any Node.js version in the following range: %s.%s",
os.EOL, nodeVer, cliName, supportedVersionsRange, os.EOL).red.bold);
process.exit(1);
}

if (semver.satisfies(nodeVer, "~0.12.0")) {
console.warn(`${EOL}Support for Node.js 0.12.x is deprecated and will be removed in the ${cliName} ${deprecationVersion} release. Please, upgrade to the latest Node.js LTS version.${EOL}`.yellow.bold);
} else {
let checkSatisfied = semver.satisfies(nodeVer, supportedVersionsRange);
if (!checkSatisfied) {
console.log(`${EOL}Support for Node.js ${nodeVer} is not verified. This CLI might not install or run properly.${EOL}`.yellow.bold);
}
var checkSatisfied = semver.satisfies(nodeVer, supportedVersionsRange);
if (!checkSatisfied) {
console.log(util.format("%sSupport for Node.js %s is not verified. This CLI might not install or run properly.%s", os.EOL, nodeVer, os.EOL).yellow.bold);
}
}
/* tslint:enable */