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fix(plugin-vue): don't use object spread in the config hook #5155

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merged 1 commit into from
Sep 30, 2021

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Description

The config object will be merged recursively in vite core, so object
spread shouldn't be used:

config = mergeConfig(config, res)

Otherwise, it would cause an array field to be concatenated with itself.

Fixes #5150

Additional context

I didn't add a test for that issue, because it's not a use case that we intended to support. The documentation clearly stated that the define field is of type Record<string, string>.

But it's a good programming practice to remove the unnecessary object spread anyway.


What is the purpose of this pull request?

  • Bug fix
  • New Feature
  • Documentation update
  • Other

Before submitting the PR, please make sure you do the following

  • Read the Contributing Guidelines.
  • Read the Pull Request Guidelines and follow the Commit Convention.
  • Check that there isn't already a PR that solves the problem the same way to avoid creating a duplicate.
  • Provide a description in this PR that addresses what the PR is solving, or reference the issue that it solves (e.g. fixes #123).
  • Ideally, include relevant tests that fail without this PR but pass with it.

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Successfully merging this pull request may close these issues.

Define array constants in the define configuration will be double length in browser
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