Add part3

part3/phonebook/node_modules/@flydotio/dockerfile/index.js

@@ -0,0 +1,81 @@
+#!/usr/bin/env node
+
+import fs from 'node:fs'
+import process from 'node:process'
+
+import yargs from 'yargs'
+import { hideBin } from 'yargs/helpers'
+
+import { GDF } from './gdf.js'
+
+// defaults for all the flags that will be saved
+const defaults = {
+  ignoreScripts: false,
+  legacyPeerDeps: false,
+  swap: '',
+  windows: false
+}
+
+// read previous values from package.json
+let pj = null
+try {
+  pj = JSON.parse(fs.readFileSync('package.json', 'utf-8'))
+} catch {
+}
+
+// parse command line for options
+const options = yargs((hideBin(process.argv)))
+  .usage('$0 [args]')
+  .epilog('Options are saved between runs into package.json. more info:\n https://github.com/fly-apps/dockerfile-node#readme')
+  .option('force', {
+    describe: 'force overwrite of existing files',
+    type: 'boolean'
+  })
+  .option('ignore-scripts', {
+    alias: 'i',
+    describe: 'ignore scripts',
+    type: 'boolean'
+  })
+  .option('legacy-peer-deps', {
+    alias: 'l',
+    describe: 'ignore peer dependencies',
+    type: 'boolean'
+  })
+  .option('swap', {
+    alias: 's',
+    describe: 'allocate swap space (eg. 1G, 1GiB, 1024M)',
+    type: 'string'
+  })
+  .option('windows', {
+    alias: 'w',
+    describe: 'make Dockerfile work for Windows users that may have set `git config --global core.autocrlf true`',
+    type: 'boolean'
+  })
+  .parse()
+
+// parse and update package.json for default options
+let save = false
+if (pj) {
+  pj.dockerfile ||= {}
+
+  for (const prop in defaults) {
+    if (prop in options && options[prop] !== pj.dockerfile[prop]) {
+      if (options[prop] === defaults[prop]) {
+        delete pj.dockerfile[prop]
+      } else {
+        pj.dockerfile[prop] = options[prop]
+      }
+      save = true
+    }
+  }
+
+  Object.assign(defaults, pj.dockerfile)
+
+  if (save) {
+    if (Object.keys(pj.dockerfile).length === 0) delete pj.dockerfile
+    fs.writeFileSync('package.json', JSON.stringify(pj, null, 2), 'utf-8')
+  }
+}
+
+// generate dockerfile and related artifacts
+new GDF().run(process.cwd(), { ...defaults, ...options })