fix: auto update field name in package.json

[ansidev]

Changes

Update field name in package.json while generating new project to match the user input.

• NPM v6 and older: ignore updating the NPM package name.
• NPM v7 and newer: supported.

The value for the new NPM package name is taken from:

1. --package argument.
2. projectDir if --package is not given.
3. request user input if the --package or projectDir is an invalid NPM package name.
4. ignore updating the NPM package name if user cancels the operation.

Test cases

• should the package name is changed if no value is given by the user.
• should the package name is not changed if the user cancels the operation.
• should the package name matches the passed argument --package.
• should the package name matches the user input.

[changeset-bot]

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Latest commit: ec420a4

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[natemoo-re]

Looks good to me!

[ansidev]

@natemoo-re

I have tested the main branch using GitHub Codespaces.

Running pnpm run build: failed randomly.

Error message: command (packages/${random-package-name}) pnpm run build exited (1).

I don't know why. However, all test cases will pass if running pnpm run build && pnpm run test in the folder create-astro.

[natemoo-re]

Hey @ansidev thanks for this PR! I did some refactoring of create-astro for testability and made sure to include this feature! See #6082