Set up oclif

Summary:
Provides some really nice helpers and generators for
multi command CLIs, including test helpers and all
sorts of output niceties. This should make it quite
easy for us to add additional sub-commands for
bundling, publishing and keeping docs for all of it.

Heroku maintains this and provides some excellent
docs, too: https://oclif.io/

My only complaint is that it's class-based but that's
effectively only the way to declare new commands and
enforces a set of required/static properties on it.

Reviewed By: nikoant

Differential Revision: D19970293

fbshipit-source-id: 4228e502198c6fd376854a90ed2f01da29e96bc2

.eslintrc.js

@@ -23,6 +23,7 @@ const prettierConfig = {
 
 module.exports = {
   parser: 'babel-eslint',
+  root: true,
   extends: 'fbjs',
   plugins: [...fbjs.plugins, 'header', 'prettier', '@typescript-eslint'],
   rules: {

pkg/.eslintignore

@@ -0,0 +1 @@
+/lib

pkg/README.md

@@ -3,6 +3,68 @@
 `flipper-pkg` is a **work-in-progress** tool for bundling and publishing
 Flipper plugins.
 
+<!-- toc -->
+* [Usage](#usage)
+* [Commands](#commands)
+<!-- tocstop -->
+# Usage
+<!-- usage -->
+```sh-session
+$ npm install -g mycli
+$ mycli COMMAND
+running command...
+$ mycli (-v|--version|version)
+mycli/0.0.0 darwin-x64 node-v12.14.0
+$ mycli --help [COMMAND]
+USAGE
+  $ mycli COMMAND
+...
+```
+<!-- usagestop -->
+# Commands
+<!-- commands -->
+* [`mycli hello [FILE]`](#mycli-hello-file)
+* [`mycli help [COMMAND]`](#mycli-help-command)
+
+## `mycli hello [FILE]`
+
+describe the command here
+
+```
+USAGE
+  $ mycli hello [FILE]
+
+OPTIONS
+  -f, --force
+  -h, --help       show CLI help
+  -n, --name=name  name to print
+
+EXAMPLE
+  $ mycli hello
+  hello world from ./src/hello.ts!
+```
+
+_See code: [src/commands/hello.ts](https://github.com/passy/mycli/blob/v0.0.0/src/commands/hello.ts)_
+
+## `mycli help [COMMAND]`
+
+display help for mycli
+
+```
+USAGE
+  $ mycli help [COMMAND]
+
+ARGUMENTS
+  COMMAND  command to show help for
+
+OPTIONS
+  --all  see all commands in CLI
+```
+
+_See code: [@oclif/plugin-help](https://github.com/oclif/plugin-help/blob/v2.2.3/src/commands/help.ts)_
+<!-- commandsstop -->
+
+
 ## License
 
 [MIT](LICENSE)

pkg/bin/run

@@ -1,3 +1,5 @@
+#!/usr/bin/env node
+
 /**
  * Copyright (c) Facebook, Inc. and its affiliates.
  *
@@ -7,8 +9,6 @@
  * @format
  */
 
-import {PKG} from '.';
-
-(async () => {
-  console.log(`Hello, ${PKG}.`);
-})();
+require('@oclif/command').run()
+.then(require('@oclif/command/flush'))
+.catch(require('@oclif/errors/handle'))

pkg/bin/run.cmd

@@ -0,0 +1,8 @@
+@REM Copyright (c) Facebook, Inc. and its affiliates.
+@REM
+@REM This source code is licensed under the MIT license found in the
+@REM LICENSE file in the root directory of this source tree.
+
+@echo off
+
+node "%~dp0run" %*

pkg/package.json

@@ -2,43 +2,64 @@
   "name": "flipper-pkg",
   "version": "0.0.0",
   "description": "Utility for building and publishing Flipper plugins",
+  "repository": "facebook/flipper",
   "main": "lib/index.js",
   "types": "lib/index.d.ts",
   "license": "MIT",
+  "bin": {
+    "flipper-pkg": "./bin/run"
+  },
+  "bugs": "https://github.com/facebook/flipper/issues",
+  "dependencies": {
+    "@oclif/command": "^1",
+    "@oclif/config": "^1",
+    "@oclif/plugin-help": "^2",
+    "@types/node": "^10",
+    "listr": "^0.14.3",
+    "tslib": "^1"
+  },
   "devDependencies": {
+    "@oclif/dev-cli": "^1",
     "@types/jest": "^24.0.21",
-    "@typescript-eslint/eslint-plugin": "^2.8.0",
-    "eslint": "^6.6.0",
-    "eslint-plugin-babel": "^5.3.0",
-    "eslint-plugin-flowtype": "^4.5.2",
-    "eslint-plugin-header": "^3.0.0",
-    "eslint-plugin-jsx-a11y": "^6.2.3",
-    "eslint-plugin-prettier": "^3.1.1",
-    "eslint-plugin-react": "^7.16.0",
+    "@types/listr": "^0.14.2",
+    "globby": "^10",
     "jest": "^24.9.0",
     "prettier": "^1.19.1",
     "ts-jest": "^24.1.0",
+    "ts-node": "^8",
     "tslint-config-prettier": "^1.18.0",
     "typescript": "^3.7.2"
   },
   "scripts": {
     "build": "tsc",
+    "postpack": "rm -f oclif.manifest.json",
+    "prepack": "rm -rf lib && tsc -b && oclif-dev manifest && oclif-dev readme",
     "prepare": "yarn run build",
     "prepublishOnly": "yarn test && yarn run lint",
     "preversion": "yarn run lint",
     "test": "jest --config jestconfig.json",
-    "lint": "eslint -c ../../sonar/.eslintrc.js src/**/* --ext .js,.ts  && tsc --noemit",
-    "fix": "eslint -c ../../sonar/.eslintrc.js src/**/* --fix --ext .js,.ts",
-    "run": "yarn run build && node lib/cli.js"
+    "run": "bin/run",
+    "version": "oclif-dev readme && git add README.md"
+  },
+  "engines": {
+    "node": ">=8.0.0"
   },
   "files": [
+    "/bin",
+    "/npm-shrinkwrap.json",
+    "/oclif.manifest.json",
     "lib/**/*"
   ],
+  "homepage": "https://github.com/facebook/flipper",
   "keywords": [
     "Flipper"
   ],
   "author": "Facebook, Inc",
-  "dependencies": {
-    "@types/node": "^12.12.12"
+  "oclif": {
+    "commands": "./lib/commands",
+    "bin": "flipper-pkg",
+    "plugins": [
+      "@oclif/plugin-help"
+    ]
   }
 }

pkg/src/commands/hello.ts

@@ -0,0 +1,40 @@
+/**
+ * Copyright (c) Facebook, Inc. and its affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ *
+ * @format
+ */
+
+import {Command, flags} from '@oclif/command';
+
+export default class Hello extends Command {
+  static description = 'describe the command here';
+
+  static examples = [
+    `$ flipper-pkg hello
+hello world from ./src/hello.ts!
+`,
+  ];
+
+  static flags = {
+    help: flags.help({char: 'h'}),
+    // flag with a value (-n, --name=VALUE)
+    name: flags.string({char: 'n', description: 'name to print'}),
+    // flag with no value (-f, --force)
+    force: flags.boolean({char: 'f'}),
+  };
+
+  static args = [{name: 'file'}];
+
+  async run() {
+    const {args, flags} = this.parse(Hello);
+
+    const name = flags.name || 'world';
+    this.log(`hello ${name} from ./src/commands/hello.ts`);
+    if (args.file && flags.force) {
+      this.log(`you input --force and --file: ${args.file}`);
+    }
+  }
+}

pkg/tsconfig.json

@@ -1,12 +1,14 @@
 {
   "compilerOptions": {
-    "lib": ["es7", "dom", "es2017"],
-    "target": "es5",
+    "target": "es2017",
     "module": "commonjs",
     "declaration": true,
-    "outDir": "./lib",
-    "strict": true
+    "outDir": "lib",
+    "rootDir": "src",
+    "strict": true,
+    "importHelpers": true
   },
-  "include": ["src"],
-  "exclude": ["node_modules", "**/__tests__/*"]
+  "include": [
+    "src/**/*"
+  ]
 }