Update rules to prevent prettier to run

[christianlupus]

Currently, the webpack-loader runs prettier in development mode. This is the current default. With the updated version of Prettier from 2 to 3, the trailing comma setting changed to all. Unfortunately, the vue-loader chokes on the additional commas and refuses to build the Vue files.

This PR will disable the prettify step during the Vue build for the development build. Thus no issue is triggered for the build with the Vue loader.

This is more of a central fix to prevent others to run into the same issue as me and needing to configure the rules locally in the apps. This is only intended as a temporary workaround until the vue loader can handle the extra commas. As the default codebase would ideally be prettified already, the impact on readability should not be too much.

[ShGKme]

Do you have a reproduction example for the described issue?

[christianlupus]

Hey @ShGKme.
Yes, I stumbled over this in the cookbook app. The commit that fixed it for now is to use this PR: see this commit

If you peek into the history, you will see that I merged prettier twice as I thought I managed to fix it in the meantime.

A more detailed explanation of the problem was written by SysKeeper in this form thread. This thread had additional information and command output logs attached for completeness.

[ShGKme]

Seems like this is dependency resolving issue. I'll check later today, if it is possible to solve it without loosing prettify output.

[ShGKme]

A bit mode details about the problem.

• vue-loader for vue@2.7 uses @vue/compiler-sfc for compiling, not vue-template-compiler.
• @vue/compiler-sfc prettifies result with prettier
• @vue/compiler-sfc has no prettier in dependencies (bug in vue/compiler-sfc)

As the result, @vue/compiler-sfc uses any installed prettier, including incompatible one.

[ShGKme]

It fixes Vue 2.7 bug with dependencies.

Alternative solution: vuejs/vue#13053

[christianlupus]

I will merge this. Until a new release of Vue2 has been pushed out (and we can use that as a dependency) that was fixed by your PR, we can use this workaround. This can be reverted afterward.