feat(cli): cli that installs npm package

Author: jaebradley

.babelrc

@@ -1,5 +1,15 @@
 {
   "presets": [
     "@babel/preset-env"
-  ]
-}
+  ],
+  "plugins": [
+    "@babel/transform-runtime",
+    "@babel/transform-async-to-generator",
+    "@babel/plugin-proposal-object-rest-spread",
+  ],
+  "env": {
+    "production": {
+      "presets": ["minify"]
+    }
+  }
+}

package-lock.json

@@ -3,12 +3,15 @@
   "version": "0.0.0-development",
   "description": "CLI that combines searching and installing npm packages",
   "main": "index.js",
-  "bin": {},
+  "bin": {
+    "nis": "./build/executables/nis.js"
+  },
   "global": true,
   "scripts": {
     "codecov": "codecov",
     "commitmsg": "commitlint -e $GIT_PARAMS",
     "compile": "babel -d build/ src/ --ignore node_modules,*.test.js",
+    "compile:prod": "babel env=PROD -d build/ src/ --ignore node_modules,*.test.js",
     "lint": "eslint --ext .js .",
     "test": "jest --coverage --passWithNoTests",
     "prepublishOnly": "npm run compile",
@@ -29,19 +32,27 @@
     "testEnvironment": "node"
   },
   "dependencies": {
+    "@babel/runtime": "^7.0.0-beta.42",
+    "axios": "^0.18.0",
+    "chalk": "^2.3.2",
     "commander": "^2.15.1",
-    "inquirer": "^5.2.0"
+    "inquirer": "^5.2.0",
+    "inquirer-autocomplete-prompt": "^0.12.2"
   },
   "devDependencies": {
     "@babel/cli": "^7.0.0-beta.42",
     "@babel/core": "^7.0.0-beta.42",
+    "@babel/plugin-proposal-object-rest-spread": "^7.0.0-beta.42",
+    "@babel/plugin-transform-async-to-generator": "^7.0.0-beta.42",
+    "@babel/plugin-transform-runtime": "^7.0.0-beta.42",
     "@babel/preset-env": "^7.0.0-beta.42",
     "@commitlint/cli": "^6.1.3",
     "@commitlint/config-angular": "^6.1.3",
     "@commitlint/prompt": "^6.1.3",
     "@commitlint/prompt-cli": "^6.1.3",
     "babel-core": "^7.0.0-bridge.0",
     "babel-jest": "^22.4.3",
+    "babel-preset-minify": "^0.3.0",
     "codecov": "^3.0.0",
     "eslint": "^4.19.1",
     "eslint-config-airbnb-base": "^12.1.0",

package.json

@@ -0,0 +1,58 @@
+import inquirer from 'inquirer';
+import InquirerAutocompletePrompt from 'inquirer-autocomplete-prompt';
+
+import formatPackageDetails from './formatPackageDetails';
+import packageSearcher from './packageSearcher';
+
+inquirer.registerPrompt('autocomplete', InquirerAutocompletePrompt);
+
+class PackageSearchPrompter {
+  constructor() {
+    // goddamn hacky memoization
+    this.packageDetailsMapping = {};
+  }
+
+  async prompt() {
+    const { npmPackage } = await inquirer.prompt([
+      {
+        type: 'autocomplete',
+        name: 'npmPackage',
+        message: 'Search for npm package',
+        source: async (answersSoFar, searchTerm) => {
+          const packageResults = await packageSearcher({ term: searchTerm || '' });
+
+          const formattedPackageDetails = [];
+          const packageDetailsMapping = {};
+
+          packageResults.data.objects.forEach((result) => {
+            const {
+              name,
+              version,
+              description,
+              publisher,
+            } = result.package;
+
+            const formattedDetails = formatPackageDetails({
+              name,
+              version,
+              description,
+              author: publisher.username,
+            });
+
+            formattedPackageDetails.push(formattedDetails);
+
+            packageDetailsMapping[formattedDetails] = { name, version };
+          });
+
+          this.packageDetailsMapping = packageDetailsMapping;
+
+          return formattedPackageDetails;
+        },
+      },
+    ]);
+
+    return this.packageDetailsMapping[npmPackage];
+  }
+}
+
+export default PackageSearchPrompter;

src/PackageSearchPrompter.js

@@ -0,0 +1,44 @@
+const buildInstallOptions = ({
+  save,
+  saveProd,
+  saveDev,
+  saveOptional,
+  saveExact,
+  saveBundle,
+  noSave,
+  dryRun,
+}) => {
+  const options = [];
+
+  if (save || saveProd) {
+    options.push('-P');
+  }
+
+  if (saveDev) {
+    options.push('-D');
+  }
+
+  if (saveOptional) {
+    options.push('-O');
+  }
+
+  if (saveExact) {
+    options.push('-E');
+  }
+
+  if (saveBundle) {
+    options.push('-B');
+  }
+
+  if (noSave) {
+    options.push('--no-save');
+  }
+
+  if (dryRun) {
+    options.push('--dry-run');
+  }
+
+  return options;
+};
+
+export default buildInstallOptions;

src/buildInstallOptions.js

@@ -0,0 +1,23 @@
+#!/usr/bin/env node
+
+import program from 'commander';
+
+import pkg from '../../package.json';
+import execute from '../';
+
+program.version(pkg.version)
+  .description('CLI that combines searching and installing npm packages')
+  // all options defined in https://docs.npmjs.com/cli/install
+  .option('-S, --save', 'Save to dependencies')
+  .option('-P, --save-prod', 'Save to dependencies')
+  .option('-D, --save-dev', 'Save to devDependencies')
+  .option('-O, --save-optional', 'Save optional')
+  .option('-E, --save-exact', 'Save exact version')
+  .option('-B, --save-bundle', 'Save bundle')
+  .option('--no-save', 'Do not save')
+  .option('--dry-run', 'Dry run')
+  .parse(process.argv);
+
+
+execute(program);
+

src/executables/nis.js

@@ -0,0 +1,10 @@
+import chalk from 'chalk';
+
+const formatPackageDetails = ({
+  name,
+  version,
+  description,
+  author,
+}) => `📦  ${chalk.green.bold(name)} | 📌  ${chalk.cyan.underline(version)} | 🏷️  ${chalk.yellow.bold(description)} | ⌨️  ${chalk.blueBright.underline(`@${author}`)}`;
+
+export default formatPackageDetails;

src/formatPackageDetails.js

@@ -0,0 +1,17 @@
+import PackageSearchPrompter from './PackageSearchPrompter';
+import install from './install';
+import buildInstallOptions from './buildInstallOptions';
+
+const execute = async (inputs) => {
+  try {
+    const packageSearchPrompter = new PackageSearchPrompter();
+    const { name, version } = await packageSearchPrompter.prompt();
+    install({ options: buildInstallOptions(inputs), name, version });
+  } catch (error) {
+    console.error('😞  Rut ro, an error occurred');
+    console.error(error);
+  }
+};
+
+export default execute;
+

src/index.js

@@ -0,0 +1,15 @@
+import { spawn } from 'child_process';
+
+const install = ({ name, version, options }) => (
+  spawn(
+    'npm',
+    [
+      'install',
+      `${name}@${version}`,
+      ...options,
+    ],
+    { stdio: 'inherit' },
+  )
+);
+
+export default install;

src/install.js

@@ -0,0 +1,5 @@
+import axios from 'axios';
+
+const packageSearcher = ({ term, size = 50 }) => axios.get(`https://registry.npmjs.org/-/v1/search?text=${term}&size=${size}`);
+
+export default packageSearcher;