better CLI usage

packages/create-freesewing-pattern/lib/prompt-library-params.js

@@ -0,0 +1,76 @@
+'use strict'
+
+const inquirer = require('inquirer')
+const validateNpmName = require('validate-npm-package-name')
+
+const config = require('./config')
+
+module.exports = async (opts) => {
+  if (opts.name && !validateNpmName(opts.name).validForNewPackages) {
+    throw new Error(`invalid package name "${opts.name}"`)
+  }
+
+  if (opts.skipPrompts) {
+    if (!opts.name) {
+      throw new Error('invalid input; you must pass a package name with --skip-prompts')
+    }
+
+    Object.keys(opts).forEach((key) => {
+      const value = opts[key]
+      if (typeof value === 'function') {
+        opts[key] = value(opts)
+      }
+    })
+
+    return opts
+  } else {
+    const info = await inquirer.prompt([
+      {
+        type: 'input',
+        name: 'name',
+        message: 'Package Name',
+        validate: (name) => {
+          return name && validateNpmName(name).validForNewPackages
+        },
+        default: opts.name
+      },
+      {
+        type: 'input',
+        name: 'description',
+        message: 'Package Description',
+        default: opts.description
+      },
+      {
+        type: 'input',
+        name: 'author',
+        message: 'Author\'s GitHub Handle',
+        default: opts.author
+      },
+      {
+        type: 'input',
+        name: 'repo',
+        message: 'GitHub Repo Path',
+        default: opts.repo
+      },
+      {
+        type: 'input',
+        name: 'license',
+        message: 'License',
+        default: opts.license
+      },
+      {
+        type: 'list',
+        name: 'manager',
+        message: 'Package Manager',
+        choices: [ 'npm', 'yarn' ],
+        default: opts.manager
+      }
+    ])
+
+    config.set('author', info.author)
+    config.set('license', info.license)
+    config.set('manager', info.manager)
+
+    return info
+  }
+}