@graphql-tools/mock 9.0.1 causes panic: Internal errors

[EvHaus]

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• 1. The issue provides a reproduction available on Github, Stackblitz or CodeSandbox

  Make sure to fork this template and run yarn generate in the terminal.

  Please make sure the GraphQL Tools package versions under package.json matches yours.

• 2. A failing test has been provided
• 3. A local solution has been provided
• 4. A pull request is pending review

---

Describe the bug

After upgrading from @graphql-tools/mock@9.0.0 to @graphql-tools/mock@9.0.1 my app builds are failing with:

error: panic: Internal error (while parsing "/srv/node_modules/@graphql-tools/mock/node_modules/@graphql-tools/utils/esm/debugTimer.js")
file: /srv/node_modules/@graphql-tools/mock/node_modules/@graphql-tools/utils/esm/debugTimer.js
=> Failed to build the preview
Error: Transform failed with 1 error:
error: panic: Internal error (while parsing "/srv/node_modules/@graphql-tools/mock/node_modules/@graphql-tools/utils/esm/debugTimer.js")
    at failureErrorWithLog (/srv/node_modules/vite/node_modules/esbuild/lib/main.js:1650:15)
    at /srv/node_modules/vite/node_modules/esbuild/lib/main.js:848:29
    at responseCallbacks.<computed> (/srv/node_modules/vite/node_modules/esbuild/lib/main.js:703:9)
    at handleIncomingPacket (/srv/node_modules/vite/node_modules/esbuild/lib/main.js:763:9)
    at Socket.readFromStdout (/srv/node_modules/vite/node_modules/esbuild/lib/main.js:679:7)
    at Socket.emit (node:events:518:28)
    at addChunk (node:internal/streams/readable:559:12)
    at readableAddChunkPushByteMode (node:internal/streams/readable:510:3)
    at Readable.push (node:internal/streams/readable:390:5)
    at Pipe.onStreamRead (node:internal/stream_base_commons:190:23)

Rolling back to 9.0.0 makes the issue go away.

To Reproduce Steps to reproduce the behavior:

Working on it...

Expected behavior

No crash.

Environment:

• OS: MacOS
• @graphql-tools/mock: 9.0.1
• NodeJS: 20.3.1

Additional context

My app is Storybook, built via Vite.

[ardatan]

It looks like a bug in ESBuild on your compile time not a runtime issue
https://github.com/ardatan/graphql-tools/blob/master/packages/utils/src/debugTimer.ts#L4
If you think it is a runtime issue, could you create a reproduction on CodeSandbox? Thanks!

[wand2016]

In my project, the error is reproduced.

Editing node_modules/.pnpm/@graphql-tools+utils@10.0.13_graphql@16.8.1/node_modules/@graphql-tools/utils/esm/debugTimer.js fixed the error:

const debugNamesOngoing = new Set();
export function debugTimerStart(name) {
-   const debugEnvVar = globalThis?.process.env['DEBUG'] || globalThis.DEBUG;
+   // ad hoc
+   const debugEnvVar = globalThis.process.env['DEBUG'] || globalThis.DEBUG;
    if (debugEnvVar === '1' || debugEnvVar?.includes(name)) {
        debugNamesOngoing.add(name);
        console.time(name);
    }
}
export function debugTimerEnd(name) {
    if (debugNamesOngoing.has(name)) {
        console.timeEnd(name);
    }
}

---

UPDATE:

Install vite-plugin-replace, then

vite.config.ts

import { replaceCodePlugin } from 'vite-plugin-replace';

// ...

export default defineConfig(({ mode, command }) => ({
  plugins: [
    replaceCodePlugin({
      replacements: [
        {
          from: 'globalThis?.process.env',
          to: 'globalThis.process.env',
        },
      ],
    }),
  ...
})

This solved the problem...