feat: support prettier v3

[auvred]

Closes #194

This PR includes a lot of changes, I tried to make them as few as possible, so I didn't run prettier -w, to prevent formatting that might complicate the PR review.

Checklist:

• Drop Node.js 12 support, add Node.js 20 to test matrix
  Prettier dropped node 12 in 3.0.0

• Change parser imports according to new prettier's files structure

• Migrate to new async api

• Migrate to ESM
  Prettier added support for ESM plugins. Also please read this

  • Migrate from ts-jest to jest-light-runner + ts-node
    To run jest test with new prettier version we need to run node with --experimental-vm-modules (references: jest docs, --experimental-vm-modules, node:vm)
    Based on my observations it's not stable yet. I tried to run it on node 14 in Github Actions. It fails on Segmentation fault. References:

    • Segmentation fault with import() instead of calling importModuleDynamically nodejs/node#35889
    • segfault when running jest tests in fastify with esm mode nodejs/node#43083

    So I decided to switch to jest-light-runner (it's used by prettier itself). It runs without V8 VM, so it's faster and more stable for now
    Also I dropped babel-jest and other babel-related dependencies, because they are no longer needed

  • Add "type": "module" and "exports" to package.json. Set "engines": {"node": ">=14.13.1 || >=16.0.0"}

  • Set esm as output format in rollup.config.js

  This allowed to revert this commit 9fa0474 and achieve smaller package size:

  # before
  $ yarn build && yarn pack && du -sh ./prettier-plugin-jsdoc-v0.4.2.tgz
  104K    ./prettier-plugin-jsdoc-v0.4.2.tgz
  
  # after
  $ yarn build && yarn pack && du -sh ./prettier-plugin-jsdoc-v0.4.2.tgz
  28K     ./prettier-plugin-jsdoc-v0.4.2.tgz

If I missed something, please correct me.

---

P.S.

1. It'd be nice to update all the dependencies, because they're very outdated... I can do this in this or another PR
   

2. It seems that the umd build is incorrect, because when I past

<script src="https://www.unpkg.com/prettier-plugin-jsdoc"></script>

to the webpage, it throws this

TODO after review:

• Bump dependencies
• Run prettier -w
• Fix standalone build

[hosseinmd]

This is not acceptable, we can't remove compatibility of old version of prettier

[auvred]

I guess it would be hard to maintain both sync and async version of plugin. prettier-plugin-jsdoc@0.4 is stable enough to work with prettier@2, so maybe we can release a new major version 1.0.0 that will support only prettier@3 and add to README something like:

This plugin is compatible with prettier@3.x, but if you want to use this plugin with prettier@2.x, then you can install it with npm i prettier-plugin-jsdoc@prettier-v2

---

Prettier v2 will no longer receive updates and the plugin ecosystem is already moving towards prettier v3 adoption

The official plugins already dropped prettier@2 support:

• @prettier/plugin-ruby - prettier/plugin-ruby@47a68f2
• @prettier/plugin-xml - prettier/plugin-xml@8a01168

---

Also migration to ESM will allow us not to include mdast-util-from-markdown to the bundle and significantly reduce package size. Otherwise if we will include both sync and async versions, the package size will only grow

[acarstoiu]

Please do not make the same mistake as your predecessors. The peer dependency should be declared with ^ or ~, not >= ❌

Also, it would be fair to correct the peer dependency on prettier of the current 0.4 line of this plugin to read ^2.1.2

[auvred]

You're right, thanks! I changed it to ^3.0.0

[so1ve]

@hosseinmd Hi, thanks for supporting prettier v3! How about creating a new release? :)

[turadg]

Looking forward to a release of this.

I also nominate @auvred as an additional maintainer for this important project.

[hosseinmd]

What version you are suggesting to release this change? It seems like a breaking change, so we should move to 1.0.0

[hosseinmd]

In addition, need to be mention in README, compatible versions with prettier v3 and v2

[so1ve]

Maybe 1.0.0 / 0.5.0 (major is 0 means this package is not stable yet) ?

[hosseinmd]

I think it is ok to release major version.

[turadg]

I think it is ok to release major version.

Your project but in my experience, it's still not stable. Per https://semver.org/, Until you release 1.0 there is no obligation to bump the major version on breaking changes. Once you do this, any breaking change will require a major version bump.

I would request that you release as 0.5.0 so as to maintain flexibility in designing the options and their defaults.

[danielpza]

Once you do this, any breaking change will require a major version bump.

I agree. On the other hand this is a very popular package that is already used in production by a lot of projects

semver.org states:

How do I know when to release 1.0.0?
If your software is being used in production, it should probably already be 1.0.0. If you have a stable API on which users have come to depend, you should be 1.0.0. If you’re worrying a lot about backward compatibility, you should probably already be 1.0.0.

Doesn’t this discourage rapid development and fast iteration?
Major version zero is all about rapid development. If you’re changing the API every day you should either still be in version 0.y.z or on a separate development branch working on the next major version.

I think both jumping to v1.0.0 or staying in v0.x.x are both valid

[danielpza]

Will every change in the formatting output constitute a breaking change in the future?

[turadg]

Will every change in the formatting output constitute a breaking change in the future?

No, some formatting output changes will be necessary to fix bugs.

But changes in intent (such as flipping a default or removing an option) will be breaking changes. And ofc anything that throws an error.

[hosseinmd]

In my opinion, this is a breaking change for someone who doesn't want to move to prettier v3, so if anybody installed this by caret ^0.4.x might get 0.5.0 then break. We should prevent them to get this version, so we should release major version

[so1ve]

@hosseinmd IMO this package's major version is 0, which means it may introduce breaking changes in any minor version change. But I don't mind whether you release a major or minor! :)

[hosseinmd]

So, I released v1.0.0. Thank you.