[plugin installer] Allow x-pack removal if it exists

src/cli_plugin/lib/error_if_x_pack.js

@@ -23,28 +23,26 @@ function isXPack(plugin) {
   return /x-pack/.test(plugin);
 }
 
-export function errorIfXPackInstall(settings, logger) {
+export function errorIfXPackInstall(settings) {
   if (isXPack(settings.plugin)) {
     if (isOSS()) {
-      logger.error(
+      throw new Error(
         'You are using the OSS-only distribution of Kibana.  ' +
         'As of version 6.3+ X-Pack is bundled in the standard distribution of this software by default; ' +
         'consequently it is no longer available as a plugin. Please use the standard distribution of Kibana to use X-Pack features.'
       );
     } else {
-      logger.error(
+      throw new Error(
         'Kibana now contains X-Pack by default, there is no longer any need to install it as it is already present.'
       );
     }
-    process.exit(1);
   }
 }
 
-export function errorIfXPackRemove(settings, logger) {
+export function errorIfXPackRemove(settings) {
   if (isXPack(settings.plugin) && !isOSS()) {
-    logger.error(
+    throw new Error(
       'You are using the standard distrbution of Kibana.  Please install the OSS-only distribution to remove X-Pack features.'
     );
-    process.exit(1);
   }
 }

src/cli_plugin/lib/error_if_x_pack.test.js

@@ -0,0 +1,51 @@
+/*
+ * Licensed to Elasticsearch B.V. under one or more contributor
+ * license agreements. See the NOTICE file distributed with
+ * this work for additional information regarding copyright
+ * ownership. Elasticsearch B.V. licenses this file to you under
+ * the Apache License, Version 2.0 (the "License"); you may
+ * not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *    http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+
+import { errorIfXPackInstall, errorIfXPackRemove } from './error_if_x_pack';
+
+describe('error_if_xpack', () => {
+  it('should error on install if x-pack by name', () => {
+    expect(() => errorIfXPackInstall({ plugin: 'x-pack' })).toThrow();
+  });
+
+  it('should error on install if x-pack by url', () => {
+    expect(() => (
+      errorIfXPackInstall({
+        plugin: 'http://localhost/x-pack/x-pack-7.0.0-alpha1-SNAPSHOT.zip'
+      }))
+    ).toThrow();
+  });
+
+  it('should not error on install if not x-pack', () => {
+    expect(() => (
+      errorIfXPackInstall({
+        plugin: 'foo'
+      }))
+    ).not.toThrow();
+  });
+
+  it('should error on remove if x-pack', () => {
+    expect(() => errorIfXPackRemove({ plugin: 'x-pack' })).toThrow();
+  });
+
+  it('should not error on remove if not x-pack', () => {
+    expect(() => errorIfXPackRemove({ plugin: 'bar' })).not.toThrow();
+  });
+});

src/cli_plugin/lib/__tests__/is_oss.js → src/cli_plugin/lib/is_oss.test.js

@@ -17,14 +17,12 @@
  * under the License.
  */
 
-import expect from 'expect.js';
-
-import { isOSS } from '../is_oss';
+import { isOSS } from './is_oss';
 
 describe('is_oss', () => {
   describe('x-pack installed', () => {
     it('should return false', () => {
-      expect(isOSS()).to.be(false);
+      expect(isOSS()).toEqual(false);
     });
   });
 });

src/cli_plugin/remove/remove.js

@@ -24,12 +24,11 @@ import rimraf from 'rimraf';
 
 export default function remove(settings, logger) {
   try {
-    errorIfXPackRemove(settings, logger);
-
     let stat;
     try {
       stat = statSync(settings.pluginPath);
     } catch (e) {
+      errorIfXPackRemove(settings, logger);
       throw new Error(`Plugin [${settings.plugin}] is not installed`);
     }
 
@@ -39,6 +38,7 @@ export default function remove(settings, logger) {
 
     logger.log(`Removing ${settings.plugin}...`);
     rimraf.sync(settings.pluginPath);
+    logger.log('Plugin removal complete');
   } catch (err) {
     logger.error(`Unable to remove plugin because of error: "${err.message}"`);
     process.exit(74); // eslint-disable-line no-process-exit

src/cli_plugin/remove/remove.test.js

@@ -24,7 +24,7 @@ import mkdirp from 'mkdirp';
 import Logger from '../lib/logger';
 import remove from './remove';
 import { join } from 'path';
-import { writeFileSync } from 'fs';
+import { writeFileSync, existsSync } from 'fs';
 
 describe('kibana cli', function () {
 
@@ -69,6 +69,23 @@ describe('kibana cli', function () {
       expect(process.exit.called).toBe(true);
     });
 
+    it('remove x-pack if it exists', () => {
+      settings.pluginPath = join(pluginDir, 'x-pack');
+      settings.plugin = 'x-pack';
+      mkdirp.sync(join(pluginDir, 'x-pack'));
+      expect(existsSync(settings.pluginPath)).toEqual(true);
+      remove(settings, logger);
+      expect(existsSync(settings.pluginPath)).toEqual(false);
+    });
+
+    it('distribution error if x-pack does not exist', () => {
+      settings.pluginPath = join(pluginDir, 'x-pack');
+      settings.plugin = 'x-pack';
+      expect(existsSync(settings.pluginPath)).toEqual(false);
+      remove(settings, logger);
+      expect(logger.error.getCall(0).args[0]).toMatch(/Please install the OSS-only distribution to remove X-Pack features/);
+    });
+
     it('delete the specified folder.', function () {
       settings.pluginPath = join(pluginDir, 'foo');
       mkdirp.sync(join(pluginDir, 'foo'));