Cannot run 'nest start' on a path containing '-no-'

[nicolas-spott]

Is there an existing issue for this?

• I have searched the existing issues

Current behavior

nest start crashes when the path contains a no segment:

TypeError: Cannot read properties of undefined (reading 'toUpperCase')
    at eval (file:///home/projects/nestjs-typescript-starter-snkda8se/broken-dir-no-broken/node_modules/.pnpm/@nestjs+cli@11.0.23_@swc+cli@0.6.0_@swc+core@1.15.41_@types+node@22.19.21_prettier@3.8.4/node_modules/@nestjs/cli/lib/utils/remaining-flags.js#cjs:34:30)
    at Array.reduce (<anonymous>)
    at camelCase (file:///home/projects/nestjs-typescript-starter-snkda8se/broken-dir-no-broken/node_modules/.pnpm/@nestjs+cli@11.0.23_@swc+cli@0.6.0_@swc+core@1.15.41_@types+node@22.19.21_prettier@3.8.4/node_modules/@nestjs/cli/lib/utils/remaining-flags.js#cjs:33:28)
    at eval (file:///home/projects/nestjs-typescript-starter-snkda8se/broken-dir-no-broken/node_modules/.pnpm/@nestjs+cli@11.0.23_@swc+cli@0.6.0_@swc+core@1.15.41_@types+node@22.19.21_prettier@3.8.4/node_modules/@nestjs/cli/lib/utils/remaining-flags.js#cjs:17:33)
    at Array.filter (<anonymous>)
    at getRemainingFlags (file:///home/projects/nestjs-typescript-starter-snkda8se/broken-dir-no-broken/node_modules/.pnpm/@nestjs+cli@11.0.23_@swc+cli@0.6.0_@swc+core@1.15.41_@types+node@22.19.21_prettier@3.8.4/node_modules/@nestjs/cli/lib/utils/remaining-flags.js#cjs:8:10)
    at Command.eval (file:///home/projects/nestjs-typescript-starter-snkda8se/broken-dir-no-broken/node_modules/.pnpm/@nestjs+cli@11.0.23_@swc+cli@0.6.0_@swc+core@1.15.41_@types+node@22.19.21_prettier@3.8.4/node_modules/@nestjs/cli/commands/start.command.js#cjs:94:67)
    at Command.listener (file:///home/projects/nestjs-typescript-starter-snkda8se/broken-dir-no-broken/node_modules/.pnpm/commander@4.1.1/node_modules/commander/index.js#cjs:370:29)
    at Command.emit (https://nestjstypescriptstartersnkda8s-x1nv.w-credentialless-staticblitz.com/builtins.7045001a.js:30:11034)
    at Command.parseArgs (file:///home/projects/nestjs-typescript-starter-snkda8se/broken-dir-no-broken/node_modules/.pnpm/commander@4.1.1/node_modules/commander/index.js#cjs:892:12)

Minimum reproduction code

https://stackblitz.com/edit/nestjs-typescript-starter-snkda8se?file=.gitignore

Steps to reproduce

1. cd broken-dir-no-broken
2. npm i
3. nest start

Expected behavior

nest start should only strip flag prefixes from actual CLI flags, not from process.argv entries that are file paths.

NestJS version

11.0.1

Packages versions

{
  "name": "nest-typescript-starter",
  "private": true,
  "version": "1.0.0",
  "description": "Nest TypeScript starter repository",
  "license": "MIT",
  "scripts": {
    "build": "nest build",
    "format": "prettier --write \"src/**/*.ts\" \"test/**/*.ts\"",
    "start": "nest start",
    "start:dev": "nest start --watch",
    "start:debug": "nest start --debug --watch",
    "start:prod": "node dist/main",
    "lint": "eslint \"{src,apps,libs,test}/**/*.ts\" --fix",
    "test": "jest",
    "test:watch": "jest --watch",
    "test:cov": "jest --coverage",
    "test:debug": "node --inspect-brk -r tsconfig-paths/register -r ts-node/register node_modules/jest/bin/jest --runInBand",
    "test:e2e": "jest --config ./test/jest-e2e.json"
  },
  "engines": {
    "npm": ">=10.0.0",
    "node": ">=20.0.0"
  },
  "dependencies": {
    "@nestjs/common": "^11.0.17",
    "@nestjs/core": "^11.0.1",
    "@nestjs/platform-express": "^11.1.11",
    "reflect-metadata": "^0.2.2",
    "rxjs": "^7.8.1"
  },
  "devDependencies": {
    "@eslint/eslintrc": "^3.2.0",
    "@eslint/js": "^9.18.0",
    "@nestjs/cli": "^11.0.0",
    "@nestjs/schematics": "^11.0.0",
    "@nestjs/testing": "^11.0.1",
    "@swc/cli": "^0.6.0",
    "@swc/core": "^1.10.8",
    "@types/express": "^5.0.0",
    "@types/jest": "^29.5.14",
    "@types/node": "^22.10.7",
    "@types/supertest": "^6.0.2",
    "eslint": "^9.18.0",
    "eslint-config-prettier": "^10.0.1",
    "eslint-plugin-prettier": "^5.2.3",
    "globals": "^15.14.0",
    "jest": "^29.7.0",
    "prettier": "^3.4.2",
    "source-map-support": "^0.5.21",
    "supertest": "^7.0.0",
    "ts-jest": "^29.2.5",
    "ts-loader": "^9.5.2",
    "ts-node": "^10.9.2",
    "tsconfig-paths": "^4.2.0",
    "typescript": "^5.7.3",
    "typescript-eslint": "^8.20.0"
  },
  "jest": {
    "moduleFileExtensions": [
      "js",
      "json",
      "ts"
    ],
    "rootDir": "src",
    "testRegex": ".*\\.spec\\.ts$",
    "transform": {
      "^.+\\.(t|j)s$": "ts-jest"
    },
    "collectCoverageFrom": [
      "**/*.(t|j)s"
    ],
    "coverageDirectory": "../coverage",
    "testEnvironment": "node"
  },
  "pnpm": {
    "onlyBuiltDependencies": [
      "@nestjs/core",
      "@swc/core"
    ]
  }
}

Node.js version

20.0.0

In which operating systems have you tested?

• macOS
• Windows
• Linux

Other

No response

[kamilmysliwiec]

would you like to create a PR for this issue?

[QusaiAlbonni]

Hi, would it be okay if I take this one? I’d be glad to submit a PR.

[nicolas-spott]

would you like to create a PR for this issue?

Don't have time until Sunday so if anyone wants to jump in before feel free :)