refactor: replace chalk with ansi-colors

Author: alan-agius4

package.json

@@ -31,9 +31,9 @@
     "@rollup/plugin-json": "^4.0.0",
     "@rollup/plugin-node-resolve": "^9.0.0",
     "ajv": "^6.12.3",
+    "ansi-colors": "^4.1.1",
     "autoprefixer": "^9.6.5",
     "browserslist": "^4.7.0",
-    "chalk": "^4.0.0",
     "chokidar": "^3.2.1",
     "commander": "^6.0.0",
     "cssnano-preset-default": "^4.0.7",

src/lib/ng-package/entry-point/init-tsconfig.transform.ts

@@ -1,5 +1,5 @@
 import { ParsedConfiguration } from '@angular/compiler-cli';
-import * as chalk from 'chalk';
+import { colors } from '../../utils/color';
 import { Transform, transformFromPromise } from '../../graph/transform';
 import { isEntryPoint, EntryPointNode } from '../nodes';
 import { initializeTsConfig } from '../../ts/tsconfig';
@@ -18,7 +18,7 @@ export const initTsConfigTransformFactory = (defaultTsConfig: ParsedConfiguratio
         'Read more here: https://v9.angular.io/guide/ivy#maintaining-library-compatibility\n' +
         '******************************************************************************';
 
-      msg(chalk.yellow(ivyMsg));
+      msg(colors.yellow(ivyMsg));
     }
 
     return graph;

src/lib/utils/color.ts

@@ -0,0 +1,16 @@
+import * as ansiColors from 'ansi-colors';
+import { WriteStream } from 'tty';
+
+type AnsiColors = typeof ansiColors;
+
+// Typings do not contain the function call (added in Node.js v9.9.0)
+const supportsColor =
+  process.stdout instanceof WriteStream &&
+  ((process.stdout as unknown) as { getColorDepth(): number }).getColorDepth() > 1;
+
+// Create a separate instance to prevent unintended global changes to the color configuration
+// Create function is not defined in the typings. See: https://github.com/doowb/ansi-colors/pull/44
+const colors = (ansiColors as AnsiColors & { create: () => AnsiColors }).create();
+colors.enabled = supportsColor;
+
+export { colors };

src/lib/utils/log.ts

@@ -1,35 +1,35 @@
-import * as chalk from 'chalk';
+import { colors } from './color';
 
 export const error = (err: string | Error) => {
   if (err instanceof Error) {
-    console.error(chalk.red('ERROR: ' + err.message));
+    console.error(colors.red('ERROR: ' + err.message));
 
     if (process.env.DEBUG) {
-      console.error(chalk.red(err.stack) + '\n');
+      console.error(colors.red(err.stack) + '\n');
     }
   } else {
-    console.error(chalk.red(err));
+    console.error(colors.red(err));
   }
 };
 
 export const warn = (msg: string) => {
-  console.warn(chalk.yellow('WARNING: ' + msg));
+  console.warn(colors.yellow('WARNING: ' + msg));
 };
 
 export const success = (msg: string) => {
-  console.log(chalk.green(msg));
+  console.log(colors.green(msg));
 };
 
 export const info = (msg: string) => {
-  console.log(chalk.blue(msg));
+  console.log(colors.blue(msg));
 };
 
 export const msg = (msg: string) => {
-  console.log(chalk.white(msg));
+  console.log(colors.white(msg));
 };
 
 export const debug = (msg: string) => {
   if (process.env.DEBUG) {
-    console.log(chalk.inverse.cyan(`[debug] ${msg}`));
+    console.log(colors.inverse.cyan(`[debug] ${msg}`));
   }
 };

yarn.lock

@@ -538,7 +538,7 @@ alphanum-sort@^1.0.0:
   resolved "https://registry.yarnpkg.com/alphanum-sort/-/alphanum-sort-1.0.2.tgz#97a1119649b211ad33691d9f9f486a8ec9fbe0a3"
   integrity sha1-l6ERlkmyEa0zaR2fn0hqjsn74KM=
 
-[email protected]:
+[email protected], ansi-colors@^4.1.1:
   version "4.1.1"
   resolved "https://registry.yarnpkg.com/ansi-colors/-/ansi-colors-4.1.1.tgz#cbb9ae256bf750af1eab344f229aa27fe94ba348"
   integrity sha512-JoX0apGbHaUJBNl6yF+p6JAFYZ666/hhCGKN5t9QFjbJQKUU/g8MNbFDbvfrgKXvI1QpZplPOnwIo99lX/AAmA==