feat: jit install command (#265)

* feat: add jit install command

* chore: simplify implementation

Author: mdonnalley

.gitignore

@@ -10,6 +10,7 @@ package-lock.json
 npm-error.log
 yarn-error.log
 lerna-debug.log
+*.tsbuildinfo
 
 # compile source
 lib

messages/jit.install.md

@@ -0,0 +1,11 @@
+# summary
+
+Install all JIT plugins.
+
+# examples
+
+- <%= config.bin %> <%= command.id %>
+
+# flags.dry-run.summary
+
+List the plugins that would be installed.

package.json

@@ -71,6 +71,9 @@
       "commandreference": {
         "description": "generate the Salesforce CLI command reference guide.",
         "longDescription": "xx"
+      },
+      "jit": {
+        "description": "description for jit"
       }
     },
     "devPlugins": [
@@ -101,4 +104,4 @@
     "access": "public"
   },
   "main": "lib/index.js"
-}
+}

src/commands/jit/install.ts

@@ -0,0 +1,43 @@
+/*
+ * Copyright (c) 2020, salesforce.com, inc.
+ * All rights reserved.
+ * Licensed under the BSD 3-Clause license.
+ * For full license text, see LICENSE.txt file in the repo root or https://opensource.org/licenses/BSD-3-Clause
+ */
+import { SfCommand, Flags } from '@salesforce/sf-plugins-core';
+import { Messages } from '@salesforce/core';
+import * as chalk from 'chalk';
+
+Messages.importMessagesDirectory(__dirname);
+const messages = Messages.load('@salesforce/plugin-command-reference', 'jit.install', [
+  'summary',
+  'examples',
+  'flags.dry-run.summary',
+]);
+
+export default class JitInstall extends SfCommand<void> {
+  public static readonly summary = messages.getMessage('summary');
+  public static readonly examples = messages.getMessages('examples');
+
+  public static readonly flags = {
+    'dry-run': Flags.boolean({
+      char: 'd',
+      summary: messages.getMessage('flags.dry-run.summary'),
+    }),
+  };
+
+  public async run(): Promise<void> {
+    const { flags } = await this.parse(JitInstall);
+
+    this.styledHeader(`Install all JIT Plugins${flags['dry-run'] ? ' (dry-run)' : ''}`);
+    for (const [plugin, version] of Object.entries(this.config.pjson.oclif.jitPlugins)) {
+      this.log(`• ${plugin} ${chalk.dim(version)}`);
+      if (flags['dry-run']) continue;
+      try {
+        await this.config.runCommand(`plugins:install ${plugin}@${version}`);
+      } catch {
+        this.log(`Failed to install ${plugin} ${chalk.dim(version)}.`);
+      }
+    }
+  }
+}