Add webpack-cli to webpack plugin enablers (resolves #492)

Author: webpro

packages/knip/fixtures/plugins/webpack-cli/node_modules/copy-webpack-plugin/index.js

@@ -0,0 +1,11 @@
+{
+  "name": "@fixtures/webpack-cli",
+  "scripts": {
+    "build": "webpack"
+  },
+  "dependencies": {},
+  "devDependencies": {
+    "webpack-cli": "*",
+    "copy-webpack-plugin": "*"
+  }
+}

packages/knip/fixtures/plugins/webpack-cli/node_modules/copy-webpack-plugin/package.json

@@ -0,0 +1 @@
+const CopyWebpackPlugin = require('copy-webpack-plugin');

packages/knip/fixtures/plugins/webpack-cli/node_modules/webpack-cli/package.json

@@ -13,7 +13,7 @@ import type { RuleSetRule, RuleSetUseItem } from 'webpack';
 
 const NAME = 'Webpack';
 
-const ENABLERS = ['webpack'];
+const ENABLERS = ['webpack', 'webpack-cli'];
 
 const isEnabled: IsPluginEnabledCallback = ({ dependencies }) => hasDependency(dependencies, ENABLERS);
 

packages/knip/fixtures/plugins/webpack-cli/package.json

@@ -0,0 +1,22 @@
+import assert from 'node:assert/strict';
+// eslint-disable-next-line n/no-restricted-import
+import test from 'node:test';
+import { main } from '../../src/index.js';
+import { resolve } from '../../src/util/path.js';
+import baseArguments from '../helpers/baseArguments.js';
+import baseCounters from '../helpers/baseCounters.js';
+
+const cwd = resolve('fixtures/plugins/webpack-cli');
+
+test('Find dependencies in Webpack CLI-only configuration', async () => {
+  const { counters } = await main({
+    ...baseArguments,
+    cwd,
+  });
+
+  assert.deepEqual(counters, {
+    ...baseCounters,
+    processed: 1,
+    total: 1,
+  });
+});