feat: support cjs

[sunrabbit123]

What changed with this PR:

just add tsdown and change package.json for to support cjs

---

https://www.npmjs.com/package/prettier-plugin-java-for-cjs?activeTab=code

thank you for making this project
wow, I surprise it

but this library is not support cjs, I failed use this on my project

[jtkiesel]

@sunrabbit123 Thank you for your contribution and I apologize for my delay in taking a look at it! Would you mind rebasing your branch, which I think should resolve the merge conflicts? You'll also need to move your new file packages/prettier-plugin-java/tsdown.config.mts to the root tsdown.config.mts, since the repo has been flattened.

[sunrabbit123]

well.. i failed install tree-sitter-java-orchard

because string-width-cjs@4.2.3 is not exsits

can i ask how to install it?

[sunrabbit123]

I rebased main without to merge lock file
if you can install tree-sitter-java-orchard library, you can run yarn install in my branch and push it

I allowed Allow edits by maintiainers @jtkiesel

[jtkiesel]

@sunrabbit123 I think I got it. I had to make some changes to get the tsdown build working (#814), but after fixing that it became relatively straightforward. Can you test this out and confirm whether it's working for you? I'll try to do some more testing tomorrow.

[sunrabbit123]

yeah
I still cannot do anything due to package installation failures.
The sub-dependencies of the tree-sitter-java-orchard library are giving me failures.

> npx envinfo --system -npmPackages cleye --binaries

System:
  OS: macOS 14.6
  CPU: (16) arm64 Apple M3 Max
  Memory: 162.86 MB / 48.00 GB
  Shell: 5.9 - /bin/zsh
Binaries:
  Node: 24.0.1 - /Users/sunrabbit/.local/share/mise/installs/node/24.0.1/bin/node
  Yarn: 2.4.3 - /Users/sunrabbit/.local/share/mise/installs/yarn/2.4.3/bin/yarn
  npm: 11.3.0 - /Users/sunrabbit/.local/share/mise/installs/node/24.0.1/bin/npm
  bun: 1.2.5 - /Users/sunrabbit/.local/share/mise/installs/bun/1.2.5/bin/bun
  Watchman: 2025.03.10.00 - /opt/homebrew/bin/watchman

string-width-cjs@4.2.3 and strip-ansi-cjs@6.0.1 is not exsits in npm

[jtkiesel]

@sunrabbit123 Looks like it's resolved from the Yarn package registry. Are you seeing this error when trying to install the dependencies for development? i.e. yarn install at the root of this repository?

[sunrabbit123]

yeah, i failed when run the yarn install on root package becasue yarn.lock is here

well, you use yarn package registry?

[jtkiesel]

I wonder if it's because you're using Yarn 2, while the project is configured for Yarn 1? Are you able to easily install Yarn 1 to try that?

[jtkiesel]

I've realized that the yarn.lock file doesn't even depend on string-width-cjs, it depends on string-width (which has a version 4.2.3), but has an alias to string-width-cjs. See here: https://github.com/sunrabbit123/prettier-java/blob/484d0ac5d47ba73fe8d8ba24f62796ac66c4fa58/yarn.lock#L4759

I'm not sure why your yarn install is attempting to install string-width-cjs. 🤔

[jtkiesel]

@sunrabbit123 Based on some light research into the issue, I think your Yarn version might be old enough to suffer from a bug that is causing this. Yarn 2.4.3 was released on September 6, 2021. You may need to either install Yarn 1.22.22 (released March 9, 2024), 3.8.7 (released December 4, 2024), or 4.12.0 (released November 23, 2025).

[sunrabbit123]

oh thx for research
so, maybe i will check this issue on next week

thank you.