kotlin-lsp: init at 0.253.10629 by p-louis · Pull Request #435169 · NixOS/nixpkgs

p-louis · 2025-08-20T04:42:32Z

This PR adds the kotlin-lsp package in the latest available version at the time of writing this.

Considering this is the official LSP implementation it will supersede kotlin-language-server in the long run.

Release notes:
https://github.com/Kotlin/kotlin-lsp/releases/tag/kotlin-lsp%2Fv0.253.10629

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Considering this is the official LSP implementation it will supersede `kotlin-language-server` in the long run. Release notes: https://github.com/Kotlin/kotlin-lsp/releases/tag/kotlin-lsp%2Fv0.253.10629

jakubpawlowicz · 2026-01-06T12:49:06Z

I've tried running it locally and had to prevent kotlin-lsp.sh from trying to chmod java binary with:

  postInstall = ''
    substituteInPlace $out/lib/kotlin-lsp/kotlin-lsp.sh \
      --replace 'chmod +x "$LOCAL_JRE_PATH/bin/java"' '# chmod removed for NixOS'
  '';

obreitwi

Thanks for the PR! I had to make two adjustments for kotlin-lsp to work under macOS.

liff · 2026-01-08T08:35:02Z

The commits should be squashed to just:

maintainers: add p-louis
kotlin-lsp: init at 261.13587.0

p-louis · 2026-01-08T09:13:34Z

I've squashed the commits down to

kotlin-lsp: update to v261.13587.0
maintainers: add p-louis
kotlin-lsp: init at 261.13587.0

I felt it a bad idea to squash the update commit down as well

liff · 2026-01-08T09:55:17Z

I don’t think a separate update commit is needed, since you are introducing a new package anyway.

kotlin-lsp: removed unneccessary ls from installPhase The `ls -la` in question was only used in building this package and is no longer required. kotlin-lsp: correct license Originally had a als20 instead of asl20 kotlin-lsp: removed unused buildInputs; add pre-/postInstall kotlin-lsp: remove maven from binPath kotlin-lsp: update to v261.13587.0 kotlin-lsp: add review suggestions

obreitwi · 2026-01-24T23:11:40Z

I felt it a bad idea to squash the update commit down as well

Unfortunately, the two changes for MacOS I had requested seem to have been lost while squashing, causing the PR to not build there.

axelkar

See also my (parallel and more polished) PR here: #482845. Use it as inspiration as you wish.

Some notes from my implementation:

selectSystem helper for better error messages
Reduced auto-patchelf dependencies by removing unused libraries in included JRE
Test that kotlin-lsp --help works (JVM classpath and libraries loaded at init work)

axelkar · 2026-02-08T19:41:57Z

This should fail on a mismatch, see #260776

Suggested change

--replace-fail 'chmod +x "$LOCAL_JRE_PATH/bin/java"' '# chmod removed for NixOS'

axelkar · 2026-02-08T19:42:16Z

Currently unfree, see https://github.com/Kotlin/kotlin-lsp/#source-code

Badya · 2026-02-23T14:59:14Z

this path is different on darwin systems

chmod +x $out/lib/kotlin-lsp/jre/Contents/Home/bin/java

I'd suggest declaring similar to my PR
https://github.com/NixOS/nixpkgs/pull/492163/changes#diff-0317ed1f782055d57bad91c5c56282ba1e3f8e324f86a2fab5cb02882fc82dd3R29-R39

I've tested it on darwin with java_bin_path fix and it works fine

Suggested find solution also LGTM #435169 (comment)

Badya · 2026-04-28T11:30:17Z

https://github.com/Kotlin/kotlin-lsp/releases/tag/kotlin-lsp%2Fv262.4739.0

bew

Hello! I've opened an alternative PR #514623 that improves the package in a number of ways:

fixing the license
avoiding depending on X11/Wayland packages (the lsp is headless, it has no need for graphical stuff!)
does not use the deprecated kotlin-lsp.sh launcher, but properly wraps the intellij-server as instructed in upstream project
adding support for .sit archives used for MacOS
adding version check to ensure the binary works in installCheck phase

bew · 2026-04-29T01:38:05Z

Note that using the kotlin-lsp.sh script is deprecated!
https://github.com/Kotlin/kotlin-lsp/blob/7ab9944cd2ff8b1758faaad8082ab17dd1ba4507/scripts/kotlin-lsp.sh#L11

p-louis · 2026-04-29T06:26:45Z

Closing in favor of #514623

kotlin-lsp: init at 0.253.10629

0512c8c

Considering this is the official LSP implementation it will supersede `kotlin-language-server` in the long run. Release notes: https://github.com/Kotlin/kotlin-lsp/releases/tag/kotlin-lsp%2Fv0.253.10629

nixpkgs-ci Bot added the 12.first-time contribution This PR is the author's first one; please be gentle! label Aug 20, 2025

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p-louis mentioned this pull request Jan 2, 2026

Unable to run latest version on nixos Kotlin/kotlin-lsp#130

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Support for the official kotlin LSP NotAShelf/nvf#1147

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kotlin-lsp: init at 261.13587.0 #482845

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kotlin-lsp, vscode-extensions.jetbrains.kotlin: init at 261.13587.0 #490614

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kotlin-lsp: init at 261.13587.0 #492163

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kotlin-lsp: init at 262.4739.0 #514623

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	--replace-fail 'chmod +x "$LOCAL_JRE_PATH/bin/java"' '# chmod removed for NixOS'

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p-louis commented Aug 20, 2025

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