refactor: simplify commitlint alias package (#965)

Author: armano2

@alias/commitlint/cli.js

@@ -1,10 +1,3 @@
 #!/usr/bin/env node
-const path = require('path');
-const resolvePkg = require('resolve-pkg');
-const readPkg = require('read-pkg');
-
-const pkgDir = resolvePkg('@commitlint/cli', {cwd: __dirname});
-const manifest = readPkg.sync({cwd: pkgDir});
-const bin = path.join(pkgDir, manifest.bin.commitlint);
-
-require(bin);
+const pkgDir = require('@commitlint/cli');
+require(pkgDir);

@alias/commitlint/cli.test.js

@@ -0,0 +1,28 @@
+import execa from 'execa';
+import {fix} from '@commitlint/test';
+
+const bin = require.resolve('./cli.js');
+
+function cli(args, options, input) {
+	const c = execa(bin, args, {
+		cwd: options.cwd,
+		env: options.env,
+		input: input
+	});
+	return c.catch(err => err);
+}
+
+const fixBootstrap = fixture => fix.bootstrap(fixture, __dirname);
+
+test('should reprint input from stdin', async () => {
+	const cwd = await fixBootstrap('fixtures/default');
+	const actual = await cli([], {cwd}, 'foo: bar');
+	expect(actual.stdout).toContain('foo: bar');
+});
+
+test('should produce success output with --verbose flag', async () => {
+	const cwd = await fixBootstrap('fixtures/default');
+	const actual = await cli(['--verbose'], {cwd}, 'type: bar');
+	expect(actual.stdout).toContain('0 problems, 0 warnings');
+	expect(actual.stderr).toEqual('');
+});

@alias/commitlint/fixtures/default/commitlint.config.js

@@ -0,0 +1,5 @@
+module.exports = {
+	rules: {
+		'type-enum': [2, 'never', ['foo']]
+	}
+};

@alias/commitlint/package.json

@@ -34,11 +34,10 @@
   },
   "license": "MIT",
   "dependencies": {
-    "@commitlint/cli": "^8.3.5",
-    "read-pkg": "5.2.0",
-    "resolve-pkg": "2.0.0"
+    "@commitlint/cli": "^8.3.5"
   },
   "devDependencies": {
-    "@commitlint/utils": "^8.3.4"
+    "@commitlint/utils": "^8.3.4",
+    "@commitlint/test": "8.2.0"
   }
 }

jest.config.js

@@ -5,6 +5,7 @@ module.exports = {
 	testMatch: [
 		'**/*.test.ts?(x)',
 		'**/@commitlint/{lint,read,travis-cli,cli,load,prompt}/src/**/*.test.js?(x)',
-		'**/@commitlint/{prompt-cli,config-lerna-scopes}/*.test.js?(x)'
+		'**/@commitlint/{prompt-cli,config-lerna-scopes}/*.test.js?(x)',
+		'**/@alias/commitlint/*.test.js?(x)'
 	]
 };