Prisma generate --watch errors Error: write EPIPE

[malekjaroslav]

When running prisma generate --watch, this error sometimes kills it:

node_modules/prisma2/build/index.js:2
module.exports=function(e,t){"use strict";var r={};function __webpack_require__(t){if(r[t]){return r[t].exports}var n=r[t]={i:t,l:false,exports:{}};e[t].call(n.exports,n,n.exports,__webpack_require__);n.l=true;return n.exports}__webpack_require__.ab=__dirname+"/";function startup(){return __webpack_require__(4653)}t(__webpack_require__);return startup()}({2:function(e,t,r){"use strict";var n=r(5622);var i=r(3382);var o=r(7707);var s=r(2080);e.exports=function(e,t){if(typeof e!=="string"){t=e;e=null}var r=o({cwd:process.cwd()},t);e=e||r.type;var u=n.resolve(r.cwd,".git/config");if(e==="global"){u=n.join(s(),".gitconfig")}if(!i(u)){if(typeof e==="string"){return null}u=n.join(s(),".config/git/config")}return i(u)?u:null}},9:function(e,t){"use strict";const r=t.encode=((e,t)=>{if(!Number.isSafeInteger(e))throw Error("cannot encode number outside of javascript safe integer range");else if(e<0)i(e,t);else n(e,t);return t});c

Error: write EPIPE
    at WriteWrap.afterWrite [as oncomplete] (net.js:789:14)
error Command failed with exit code 7.

[pantharshit00]

I can confirm this.

Steps for reproduction:

1. Bootstrap an empty Prisma 2 project
2. Add the following model:

   // This is your Prisma schema file,
   // learn more about it in the docs: https://pris.ly/d/prisma-schema
   
   datasource db {
     provider = "postgresql"
     url      = env("DATABASE_URL")
   }
   
   generator client {
     provider = "prisma-client-js"
   }
   
   model User {
     id String @id @default(cuid())
     name String
   }

3. Run prisma2 generate --watch
4. Change your model to the following:

   // This is your Prisma schema file,
   // learn more about it in the docs: https://pris.ly/d/prisma-schema
   
   datasource db {
     provider = "postgresql"
     url      = env("DATABASE_URL")
   }
   
   generator client {
     provider = "prisma-client-js"
   }
   
   model User {
     id String @id @default(cuid())
     name String
     test String
   }

5. See the error.

From my investigation so far, this only happens if your generate run creates a package.json file.

Version: prisma2@2.0.0-preview024, binary version: 377df4fe30aa992f13f1ba152cf83d5770bdbc85

[Jolg42]

It looks like I can't reproduce it. (in latest alpha)

I'm closing it for now, feel free to comment here if you think it's still an issue 😃

[Jolg42]

It just happened to me on macOS I will try to get a clear reproduction.

Schema parsing
error: Error validating: This line is invalid. It does not start with any known Prisma schema keyword.
  -->  schema.prisma:22
   | 
21 | //   id Int @id
22 | }
23 | 
   | 

Validation Error Count: 1

✔ Generated Prisma Client to ./@prisma/client in 37ms
✔ Generated Prisma Client to ./@prisma/client in 33ms

/Users/j42/Dev/prisma/src/node_modules/.pnpm/registry.npmjs.org/yoga-layout-prebuilt/1.9.5/node_modules/yoga-layout-prebuilt/yoga-layout/build/Release/nbind.js:53
        throw ex;
        ^

Error: write EPIPE
    at WriteWrap.onWriteComplete [as oncomplete] (internal/stream_base_commons.js:87:16)
Emitted 'error' event on Socket instance at:
    at errorOrDestroy (internal/streams/destroy.js:108:12)
    at onwriteError (_stream_writable.js:456:5)
    at onwrite (_stream_writable.js:477:5)
    at internal/streams/destroy.js:50:7
    at Socket._destroy (net.js:669:5)
    at Socket.destroy (internal/streams/destroy.js:38:8)
    at WriteWrap.onWriteComplete [as oncomplete] (internal/stream_base_commons.js:88:12) {
  errno: 'EPIPE',
  code: 'EPIPE',
  syscall: 'write'
}

[Jolg42]

Closing for now as I couldn't get a proper reproduction. So if anyone can reproduce in a reliable way that would be great 🙏