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#!/usr/bin/env node
import {
findWorkspaceRoot,
WorkspaceTypeAndRoot,
} from '../src/utils/find-workspace-root';
import * as chalk from 'chalk';
import { config as loadDotEnvFile } from 'dotenv';
import { expand } from 'dotenv-expand';
import { initLocal } from './init-local';
import { output } from '../src/utils/output';
import {
getNxInstallationPath,
getNxRequirePaths,
} from '../src/utils/installation-directory';
import { major } from 'semver';
import { stripIndents } from '../src/utils/strip-indents';
import { readModulePackageJson } from '../src/utils/package-json';
import { execSync } from 'child_process';
import { join } from 'path';
import { assertSupportedPlatform } from '../src/native/assert-supported-platform';
import { performance } from 'perf_hooks';
import { setupWorkspaceContext } from '../src/utils/workspace-context';
import { daemonClient } from '../src/daemon/client/client';
function main() {
if (
process.argv[2] !== 'report' &&
process.argv[2] !== '--version' &&
process.argv[2] !== '--help'
) {
assertSupportedPlatform();
}
require('nx/src/utils/perf-logging');
performance.mark('loading dotenv files:start');
loadDotEnvFiles();
performance.mark('loading dotenv files:end');
performance.measure(
'loading dotenv files',
'loading dotenv files:start',
'loading dotenv files:end'
);
const workspace = findWorkspaceRoot(process.cwd());
// new is a special case because there is no local workspace to load
if (
process.argv[2] === 'new' ||
process.argv[2] === '_migrate' ||
process.argv[2] === 'init' ||
(process.argv[2] === 'graph' && !workspace)
) {
process.env.NX_DAEMON = 'false';
require('nx/src/command-line/nx-commands').commandsObject.argv;
} else {
if (!daemonClient.enabled() && workspace !== null) {
setupWorkspaceContext(workspace.dir);
}
// polyfill rxjs observable to avoid issues with multiple version of Observable installed in node_modules
// https://twitter.com/BenLesh/status/1192478226385428483?s=20
if (!(Symbol as any).observable)
(Symbol as any).observable = Symbol('observable polyfill');
// Make sure that a local copy of Nx exists in workspace
let localNx: string;
try {
localNx = workspace && resolveNx(workspace);
} catch {
localNx = null;
}
const isLocalInstall = localNx === resolveNx(null);
const { LOCAL_NX_VERSION, GLOBAL_NX_VERSION } = determineNxVersions(
localNx,
workspace,
isLocalInstall
);
if (process.argv[2] === '--version') {
handleNxVersionCommand(LOCAL_NX_VERSION, GLOBAL_NX_VERSION);
}
if (!workspace) {
handleNoWorkspace(GLOBAL_NX_VERSION);
}
if (!localNx) {
handleMissingLocalInstallation();
}
// this file is already in the local workspace
if (isLocalInstall) {
initLocal(workspace);
} else {
// Nx is being run from globally installed CLI - hand off to the local
warnIfUsingOutdatedGlobalInstall(GLOBAL_NX_VERSION, LOCAL_NX_VERSION);
if (localNx.includes('.nx')) {
const nxWrapperPath = localNx.replace(/\.nx.*/, '.nx/') + 'nxw.js';
require(nxWrapperPath);
} else {
require(localNx);
}
}
}
}
/**
* This loads dotenv files from:
* - .env
* - .local.env
* - .env.local
*/
function loadDotEnvFiles() {
for (const file of ['.local.env', '.env.local', '.env']) {
const myEnv = loadDotEnvFile({
path: file,
});
expand(myEnv);
}
}
function handleNoWorkspace(globalNxVersion?: string) {
output.log({
title: `The current directory isn't part of an Nx workspace.`,
bodyLines: [
`To create a workspace run:`,
chalk.bold.white(`npx create-nx-workspace@latest <workspace name>`),
'',
`To add Nx to an existing workspace with a workspace-specific nx.json, run:`,
chalk.bold.white(`npx nx@latest init`),
],
});
output.note({
title: `For more information please visit https://nx.dev/`,
});
warnIfUsingOutdatedGlobalInstall(globalNxVersion);
process.exit(1);
}
function handleNxVersionCommand(
LOCAL_NX_VERSION: string,
GLOBAL_NX_VERSION: string
) {
console.log(stripIndents`Nx Version:
- Local: ${LOCAL_NX_VERSION ? 'v' + LOCAL_NX_VERSION : 'Not found'}
- Global: ${GLOBAL_NX_VERSION ? 'v' + GLOBAL_NX_VERSION : 'Not found'}`);
process.exit(0);
}
function determineNxVersions(
localNx: string,
workspace: WorkspaceTypeAndRoot,
isLocalInstall: boolean
) {
const LOCAL_NX_VERSION: string | null = localNx
? getLocalNxVersion(workspace)
: null;
const GLOBAL_NX_VERSION: string | null = isLocalInstall
? null
: require('../package.json').version;
globalThis.GLOBAL_NX_VERSION ??= GLOBAL_NX_VERSION;
return { LOCAL_NX_VERSION, GLOBAL_NX_VERSION };
}
function resolveNx(workspace: WorkspaceTypeAndRoot | null) {
// root relative to location of the nx bin
const globalsRoot = join(__dirname, '../../../');
// prefer Nx installed in .nx/installation
try {
return require.resolve('nx/bin/nx.js', {
paths: [getNxInstallationPath(workspace ? workspace.dir : globalsRoot)],
});
} catch {}
// check for root install
try {
return require.resolve('nx/bin/nx.js', {
paths: [workspace ? workspace.dir : globalsRoot],
});
} catch {
// TODO(v17): Remove this
// fallback for old CLI install setup
// nx-ignore-next-line
return require.resolve('@nrwl/cli/bin/nx.js', {
paths: [workspace ? workspace.dir : globalsRoot],
});
}
}
function handleMissingLocalInstallation() {
output.error({
title: `Could not find Nx modules in this workspace.`,
bodyLines: [`Have you run ${chalk.bold.white(`npm/yarn install`)}?`],
});
process.exit(1);
}
/**
* Assumes currently running Nx is global install.
* Warns if out of date by 1 major version or more.
*/
function warnIfUsingOutdatedGlobalInstall(
globalNxVersion: string,
localNxVersion?: string
) {
// Never display this warning if Nx is already running via Nx
if (process.env.NX_CLI_SET) {
return;
}
const isOutdatedGlobalInstall = checkOutdatedGlobalInstallation(
globalNxVersion,
localNxVersion
);
// Using a global Nx Install
if (isOutdatedGlobalInstall) {
const bodyLines = localNxVersion
? [
`Your repository uses a higher version of Nx (${localNxVersion}) than your global CLI version (${globalNxVersion})`,
]
: [];
bodyLines.push(
'For more information, see https://nx.dev/more-concepts/global-nx'
);
output.warn({
title: `Its time to update Nx 🎉`,
bodyLines,
});
}
}
function checkOutdatedGlobalInstallation(
globalNxVersion?: string,
localNxVersion?: string
) {
// We aren't running a global install, so we can't know if its outdated.
if (!globalNxVersion) {
return false;
}
if (localNxVersion) {
// If the global Nx install is at least a major version behind the local install, warn.
return major(globalNxVersion) < major(localNxVersion);
}
// No local installation was detected. This can happen if the user is running a global install
// that contains an older version of Nx, which is unable to detect the local installation. The most
// recent case where this would have happened would be when we stopped generating workspace.json by default,
// as older global installations used it to determine the workspace root. This only be hit in rare cases,
// but can provide valuable insights for troubleshooting.
const latestVersionOfNx = getLatestVersionOfNx();
if (latestVersionOfNx && major(globalNxVersion) < major(latestVersionOfNx)) {
return true;
}
}
function getLocalNxVersion(workspace: WorkspaceTypeAndRoot): string | null {
try {
const { packageJson } = readModulePackageJson(
'nx',
getNxRequirePaths(workspace.dir)
);
return packageJson.version;
} catch {}
}
function _getLatestVersionOfNx(): string {
try {
return execSync('npm view nx@latest version').toString().trim();
} catch {
try {
return execSync('pnpm view nx@latest version').toString().trim();
} catch {
return null;
}
}
}
const getLatestVersionOfNx = ((fn: () => string) => {
let cache: string = null;
return () => cache || (cache = fn());
})(_getLatestVersionOfNx);
main();