Filter empty files to prevent GraphQL codegen plugin configuration errors

[sammwafy]

Fix GraphQL Codegen Plugin Configuration Issues

Issue

The GraphQL codegen was failing if files included in tsconfig were empty:
Invalid plugin configuration: Empty source files were being processed, causing the add plugin to fail with:

Configuration provided for 'add' plugin is invalid: "content" is missing!

Solution

✅ Filter out empty source files

• Added .filter() to skip files with no meaningful content before processing
• Prevents invalid plugin configurations from empty files

return tsProject.getSourceFiles()
  .filter((sf) => sf.getFullText().trim().length > 0)  // ← just add a filter for empty files
  .map((tsSourceFile) => ({
    filename: tsSourceFile.getFilePath(),
    pluginMap: { add: addPlugin },  // ← Fixed reference
    plugins: [{ add: { content: tsSourceFile.getFullText() } }],
    config: {},
    schema,
    documents: [],
  }));

Results

• ✅ Prevents empty/invalid plugin outputs
• ✅ Tested locally with both src/test/*.tsx and src/**/*.tsx includes — codegen now runs successfully without errors

Testing

Verified the fix works with multiple file patterns and confirmed no regressions in existing functionality.

[changeset-bot]

🦋 Changeset detected

Latest commit: 36f2525

The changes in this PR will be included in the next version bump.

This PR includes changesets to release 1 package

Name	Type
@eddeee888/gcg-operation-location-migration	Patch

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[stefanoruth]

Have the same issue, this fixed it.

[eddeee888]

Hi @sammwafy !
Thanks for the fix. I'm curious in which scenario this is happening and whether we can write a test for it?

[sammwafy]

Hi @eddeee888
This happens when there are empty files in the project. Since content is required by the add plugin, even one empty file will cause the whole codegen process to fail.
this becomes an issue in large projects with many files so we can just filters out empty files before processing.

[eddeee888]

Hi @sammwafy ,

Thanks for the details, may I ask when it would get to this situation? I've tried this on my side but cannot reproduce it.

[eddeee888]

Thank you @sammwafy !
I got confused between the plugins. This fixes the issue 🙌

I've added a test and fixed a few files for the release