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[Feature] Expo Doctor output is lost when diagnostics fail

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Assessment

Difficulty
3/5
Estimated time
1-2 days
Newbie friendliness
72/100
Issue type
Feature
Clarity
Mostly clear
Activity status
Active
Tech stack
react-native, typescript, vscode

Research direction

Start at the Expo Doctor command integration and its command tests. Trace how stdout, stderr, startup failures, and unsuccessful exits are currently handled, then add coverage for successful execution, startup failure, and diagnostic output on unsuccessful exit. Done means both output streams are logged through their specified channels while the original command error still propagates.

Written by the indexing model from the issue text.

Description

enhancement

When expo-doctor exits with a non-zero status, its stdout and stderr are discarded. This hides the diagnostic details users need to resolve the reported issues.

Update the Expo Doctor command to:

  • Capture both stdout and stderr.
  • Log stdout through the info channel.
  • Log stderr through the error channel.
  • Preserve the original failure behavior by propagating the command error.
  • Add tests covering successful execution, startup failure, and unsuccessful exit with diagnostic output.
Dominant language
TypeScript
Stars
2.7k
Forks
295
Avg merge
9h 11m
Merged PRs (30d)
30

Getting set up

First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

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