Fix kcl file opening on Windows (double click) on second instance (#5420)

* WIP: Double-clicking on .kcl file on Windows redirects to the home page if the app is already open
Fixes #5412

* Add deep link test case for linux

* Add mac tests

* Lint and win tests

* Fix e2e tests

* Logs everywhere

* windows weird? yup

* More logzzz maybe it's not windows

* Remove :/// replacement. Add catch log

* Fix and clean up

* FIx lint

* A snapshot a day keeps the bugs away! 📷🐛 (OS: namespace-profile-ubuntu-8-cores)

* A snapshot a day keeps the bugs away! 📷🐛 (OS: namespace-profile-ubuntu-8-cores)

* More lint

* A snapshot a day keeps the bugs away! 📷🐛 (OS: namespace-profile-ubuntu-8-cores)

* A snapshot a day keeps the bugs away! 📷🐛 (OS: namespace-profile-ubuntu-8-cores)

* A snapshot a day keeps the bugs away! 📷🐛 (OS: namespace-profile-ubuntu-8-cores)

* Clean up tests further

---------

Co-authored-by: github-actions[bot] <github-actions[bot]@users.noreply.github.com>

src/commandLineArgs.test.ts

@@ -0,0 +1,82 @@
+import { getPathOrUrlFromArgs, parseCLIArgs } from 'commandLineArgs'
+
+const linuxDeepLinkArgv = [
+  '/tmp/.mount_Zoo Movq3t0x/zoo-modeling-app',
+  '--no-sandbox',
+  '--allow-file-access-from-files',
+  'zoo-studio://?create-file=true&name=deeplinks&code=cGxhbmUwMDEgPSBvZmZzZXRQbGFuZSgnWFonLCBvZmZzZXQgPSA1KQ%3D%3D',
+]
+
+const linuxNoPathArgv = [
+  '/tmp/.mount_Zoo MogQS2hd/zoo-modeling-app',
+  '--no-sandbox',
+  '--allow-file-access-from-files',
+]
+
+const linuxPathArgv = [
+  '/tmp/.mount_Zoo MogQS2hd/zoo-modeling-app',
+  '--no-sandbox',
+  '--allow-file-access-from-files',
+  '/home/pierremtb/Documents/zoo-modeling-app-projects/project-001/main.kcl',
+]
+
+const winDeepLinkArgv = [
+  'C:\\Program Files\\Zoo Modeling App\\Zoo Modeling App.exe',
+  '--allow-file-access-from-files',
+  'zoo-studio:///?create-file=true&name=deeplinkscopy&code=cGxhbmUwMDEgPSBvZmZzZXRQbGFuZSgnWFonLCBvZmZzZXQgPSA1KQo%3D',
+]
+
+const winNoPathArgv = [
+  'C:\\Program Files\\Zoo Modeling App\\Zoo Modeling App.exe',
+  '--allow-file-access-from-files',
+]
+
+const winPathArgv = [
+  'C:\\Program Files\\Zoo Modeling App\\Zoo Modeling App.exe',
+  '--allow-file-access-from-files',
+  'C:\\Users\\pierr\\Documents\\zoo-modeling-app-projects\\deeplink\\main.kcl',
+]
+
+// macos doesn't uses the open-url scheme so is different so no macDeepLinkArgv
+
+const macNoPathArgv = [
+  '/Applications/Zoo Modeling App.app/Contents/MacOS/Zoo Modeling App',
+]
+
+const macPathArgv = [
+  '/Applications/Zoo Modeling App.app/Contents/MacOS/Zoo Modeling App',
+  '/Users/pierremtb/Documents/zoo-modeling-app-projects/loft/main.kcl',
+]
+
+describe('getPathOrUrlFromArgs', () => {
+  ;[
+    ['linux', linuxDeepLinkArgv],
+    ['windows', winDeepLinkArgv],
+    // macos doesn't uses the open-url scheme so is different
+  ].map(([os, argv]) => {
+    it(`should parse second-instance deep link argv on ${os}`, () => {
+      const args = parseCLIArgs(argv as string[])
+      expect(getPathOrUrlFromArgs(args)).toContain('zoo-studio://')
+    })
+  })
+  ;[
+    ['linux', linuxPathArgv],
+    ['windows', winPathArgv],
+    ['mac', macPathArgv],
+  ].map(([os, argv]) => {
+    it(`should parse path argv on ${os}`, () => {
+      const args = parseCLIArgs(argv as string[])
+      expect(getPathOrUrlFromArgs(args)).toContain('main.kcl')
+    })
+  })
+  ;[
+    ['linux', linuxNoPathArgv],
+    ['windows', winNoPathArgv],
+    ['mac', macNoPathArgv],
+  ].map(([os, argv]) => {
+    it(`should return undefined without path argv on ${os}`, () => {
+      const args = parseCLIArgs(argv as string[])
+      expect(getPathOrUrlFromArgs(args)).toBeUndefined()
+    })
+  })
+})

src/commandLineArgs.ts

@@ -1,7 +1,8 @@
+import minimist from 'minimist'
 import yargs from 'yargs'
 import { hideBin } from 'yargs/helpers'
 
-const argv = yargs(hideBin(process.argv))
+export const argvFromYargs = yargs(hideBin(process.argv))
   .option('telemetry', {
     alias: 't',
     type: 'boolean',
@@ -9,4 +10,20 @@ const argv = yargs(hideBin(process.argv))
   })
   .parse()
 
-export default argv
+// TODO: find a better way to merge minimist and yargs parsers.
+
+export function parseCLIArgs(argv: string[]): minimist.ParsedArgs {
+  return minimist(argv, {
+    // Treat all double-hyphenated arguments without equal signs as boolean
+    boolean: true,
+  })
+}
+
+export function getPathOrUrlFromArgs(
+  args: minimist.ParsedArgs
+): string | undefined {
+  if (args._.length > 1) {
+    return args._[1]
+  }
+  return undefined
+}

src/main.ts

@@ -17,23 +17,27 @@ import { Bonjour, Service } from 'bonjour-service'
 // @ts-ignore: TS1343
 import * as kittycad from '@kittycad/lib/import'
 import electronUpdater, { type AppUpdater } from 'electron-updater'
-import minimist from 'minimist'
 import getCurrentProjectFile from 'lib/getCurrentProjectFile'
 import os from 'node:os'
 import { reportRejection } from 'lib/trap'
 import { ZOO_STUDIO_PROTOCOL } from 'lib/constants'
-import argvFromYargs from './commandLineArgs'
+import {
+  argvFromYargs,
+  getPathOrUrlFromArgs,
+  parseCLIArgs,
+} from './commandLineArgs'
 
 import * as packageJSON from '../package.json'
 
 let mainWindow: BrowserWindow | null = null
 
 // Check the command line arguments for a project path
-const args = parseCLIArgs()
+const args = parseCLIArgs(process.argv)
 
 // @ts-ignore: TS1343
 const viteEnv = import.meta.env
 const NODE_ENV = process.env.NODE_ENV || viteEnv.MODE
+const IS_PLAYWRIGHT = process.env.IS_PLAYWRIGHT
 
 // dotenv override when present
 dotenv.config({ path: [`.env.${NODE_ENV}.local`, `.env.${NODE_ENV}`] })
@@ -50,7 +54,8 @@ process.env.VITE_KC_CONNECTION_TIMEOUT_MS ??=
   viteEnv.VITE_KC_CONNECTION_TIMEOUT_MS
 
 // Likely convenient to keep for debugging
-console.log('process.env', process.env)
+console.log('Environment vars', process.env)
+console.log('Parsed CLI args', args)
 
 /// Register our application to handle all "zoo-studio:" protocols.
 const singleInstanceLock = app.requestSingleInstanceLock()
@@ -68,7 +73,7 @@ if (process.defaultApp) {
 // Must be done before ready event.
 // Checking against this lock is needed for Windows and Linux, see
 // https://www.electronjs.org/docs/latest/tutorial/launch-app-from-url-in-another-app#windows-and-linux-code
-if (!singleInstanceLock && !process.env.IS_PLAYWRIGHT) {
+if (!singleInstanceLock && !IS_PLAYWRIGHT) {
   app.quit()
 } else {
   registerStartupListeners()
@@ -100,12 +105,14 @@ const createWindow = (pathToOpen?: string, reuse?: boolean): BrowserWindow => {
   }
 
   // Deep Link: Case of a cold start from Windows or Linux
-  const zooProtocolArg = process.argv.find((a) =>
+  const pathOrUrl = getPathOrUrlFromArgs(args)
-    a.startsWith(ZOO_STUDIO_PROTOCOL + '://')
+  if (
-  )
+    !pathToOpen &&
-  if (!pathToOpen && zooProtocolArg) {
+    pathOrUrl &&
-    pathToOpen = zooProtocolArg
+    pathOrUrl.startsWith(ZOO_STUDIO_PROTOCOL + '://')
-    console.log('Retrieved deep link from argv', pathToOpen)
+  ) {
+    pathToOpen = pathOrUrl
+    console.log('Retrieved deep link from CLI args', pathToOpen)
   }
 
   // Deep Link: Case of a second window opened for macOS
@@ -431,7 +438,8 @@ const getProjectPathAtStartup = async (
   // If we are in development mode, we don't want to load a project at
   // startup.
   // Since the args passed are always '.'
-  if (NODE_ENV !== 'production') {
+  // aka Forge for yarn tron:start live dev or playwright tests, but not dev packaged apps
+  if (MAIN_WINDOW_VITE_DEV_SERVER_URL || IS_PLAYWRIGHT) {
     return null
   }
 
@@ -484,17 +492,18 @@ const getProjectPathAtStartup = async (
   return null
 }
 
-function parseCLIArgs(): minimist.ParsedArgs {
-  return minimist(process.argv, {})
-}
-
 function registerStartupListeners() {
   // Linux and Windows from https://www.electronjs.org/docs/latest/tutorial/launch-app-from-url-in-another-app
   app.on('second-instance', (event, commandLine, workingDirectory) => {
     // Deep Link: second instance for Windows and Linux
-    const url = commandLine.pop()?.slice(0, -1)
+    // Likely convenient to keep for debugging
-    console.log('Retrieved deep link from commandLine', url)
+    console.log(
-    createWindow(url)
+      'Parsed CLI args from second instance',
+      parseCLIArgs(commandLine)
+    )
+    const pathOrUrl = getPathOrUrlFromArgs(parseCLIArgs(commandLine))
+    console.log('Retrieved path or deep link from second-instance', pathOrUrl)
+    createWindow(pathOrUrl)
   })
 
   /**