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fix(graphql-codegen-cli): Don't hang when 0 CPUs are found #10569

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Merged
eddeee888 merged 2 commits into from
Jan 11, 2026
+8 −1
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fix(graphql-codegen-cli): Don't hang when 0 CPUs are found #10569

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fix(graphql-codegen-cli): Don't hang when 0 CPUs are found
etr2460 Jan 11, 2026
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etr2460 Jan 11, 2026
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7 changes: 7 additions & 0 deletions .changeset/ready-ravens-swim.md
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Original file line number Diff line number Diff line change
@@ -0,0 +1,7 @@
---
'@graphql-codegen/cli': patch
---

fix(graphql-codegen-cli): Don't hang when 0 CPUs are found

Fixes generation when 0 CPUs are returned by os.cpus(), which occurs in sandbox environments.
2 changes: 1 addition & 1 deletion packages/graphql-codegen-cli/src/codegen.ts
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Expand Up @@ -423,7 +423,7 @@ export async function executeCodegen(
};
});

return task.newListr(generateTasks, { concurrent: cpus().length });
return task.newListr(generateTasks, { concurrent: cpus().length || 1 });
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@eddeee888 eddeee888 Jan 11, 2026

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Good point about having unit tests here may not be useful 🤔
Even if we mocked cpus(), I can't think of a good (or meaningful) way to assert that it works.

Agree with merging this first, thank you!

},
},
],
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