fix(@angular/cli): use newer update command if global version is newer

This allows improvements and bugfixes in later versions of the update command to be used in projects with older versions of the Angular CLI that do not have bootstrapping (<8.3.13).

Author: clydin

packages/angular/cli/lib/init.ts

@@ -81,33 +81,37 @@ if (process.env['NG_CLI_PROFILING']) {
     const projectLocalCli = require.resolve('@angular/cli', { paths: [process.cwd()] });
     cli = await import(projectLocalCli);
 
-    // This was run from a global, check local version.
-    if (await isWarningEnabled('versionMismatch')) {
-      const globalVersion = new SemVer(require('../package.json').version);
-
-      // Older versions might not have the VERSION export
-      let localVersion = cli.VERSION?.full;
-      if (!localVersion) {
-        try {
-          localVersion = require(path.join(path.dirname(projectLocalCli), '../../package.json'))
-            .version;
-        } catch (error) {
-          // tslint:disable-next-line no-console
-          console.error(
-            'Version mismatch check skipped. Unable to retrieve local version: ' + error,
-          );
-        }
-      }
+    const globalVersion = new SemVer(require('../package.json').version);
 
-      let shouldWarn = false;
+    // Older versions might not have the VERSION export
+    let localVersion = cli.VERSION?.full;
+    if (!localVersion) {
       try {
-        shouldWarn = !!localVersion && globalVersion.compare(localVersion) > 0;
+        localVersion = require(path.join(path.dirname(projectLocalCli), '../../package.json'))
+          .version;
       } catch (error) {
         // tslint:disable-next-line no-console
-        console.error('Version mismatch check skipped. Unable to compare local version: ' + error);
+        console.error(
+          'Version mismatch check skipped. Unable to retrieve local version: ' + error,
+        );
       }
+    }
+
+    let isGlobalGreater = false;
+    try {
+      isGlobalGreater = !!localVersion && globalVersion.compare(localVersion) > 0;
+    } catch (error) {
+      // tslint:disable-next-line no-console
+      console.error('Version mismatch check skipped. Unable to compare local version: ' + error);
+    }
 
-      if (shouldWarn) {
+    if (isGlobalGreater) {
+      // If using the update command and the global version is greater, use the newer update command
+      // This allows improvements in update to be used in older versions that do not have bootstrapping
+      if (process.argv[2] === 'update') {
+        cli = await import('./cli');
+      } else if (await isWarningEnabled('versionMismatch')) {
+        // Otherwise, use local version and warn if global is newer than local
         const warning =
           `Your global Angular CLI version (${globalVersion}) is greater than your local ` +
           `version (${localVersion}). The local Angular CLI version is used.\n\n` +