fix(v2): fix inconsistent error output in swizzle command #3725
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Motivation
Fixes #3408, but also does some minor refactoring of command body to improve the comprehensibility/readability of the code (mostly, using return early pattern and using
console.warn
together withprocess.exit
instead of throwing an exception so as not to display unnecessary/long stack trace).Have you read the Contributing Guidelines on pull requests?
Yes
Test Plan
Try to execute
swizzle
command with different cases (with empty/wrong arguments, with--danger
and--typescript
flags).Related PRs
(If this PR adds or changes functionality, please take some time to update the docs at https://github.com/facebook/docusaurus, and link to your PR here.)