Create intellij (Pycharm) plugin

[krukas]

Looks like standard support is for paid products only: https://plugins.jetbrains.com/docs/intellij/language-server-protocol.html#plugin-configuration

Possible client: https://github.com/ballerina-platform/lsp4intellij

[angelozerr]

Please consider also the free LSP support https://github.com/redhat-developer/lsp4ij

[whyscream]

As of the recently released Pycharm 2025.1, LSP support is open to all Pycharm users, also for those who don't have a pro license.
See https://blog.jetbrains.com/pycharm/2025/04/unified-pycharm/ (somewhere in a comment by 'Valerie Andrianova' that I cannot deeplink), and https://www.jetbrains.com/pycharm/editions/

[angelozerr]

@whyscream indeed but for the moment LSP support from JetBrains doesn't cover all LSP features like codelens, inlay hint, etc that LSP4IJ supports.

More LSP4IJ supports now DAP and you can for instance using debugpy to debug Python files, see https://github.com/redhat-developer/lsp4ij/blob/main/docs/dap/user-defined-dap/python-debugpy.md

[whyscream]

I just tried to setup djlsp using LSP4IJ, and it seems to work 🎉

The server emits messages that indicate that not everything is supported, but basic things like auto completion of tags and filters, jumping to files in extends, completion of view names in url tags do work. Nice :)

Some of the output from the server (no idea if any of it is relevant as I have no knowledge in LSP development):

Ignoring notification for unknown method "workspace/didChangeConfiguration"
Cancel notification for unknown message id "3"
Ignoring notification for unknown method "textDocument/didSave"
Failed to parse library (base): 'base'

Pycharm 2025.1.1.1
LSP4IJ 0.13.0
djlsp 1.2.0

[angelozerr]

I just tried to setup djlsp using LSP4IJ, and it seems to work 🎉

Thanks for having taken time to try LSP4IJ!

How have you test djlsp? By developping an IJ plugin or with https://github.com/redhat-developer/lsp4ij/blob/main/docs/UserDefinedLanguageServer.md ?

I suppose that you have tested with https://github.com/redhat-developer/lsp4ij/blob/main/docs/UserDefinedLanguageServer.md because it sends by default "workspace/didChangeConfiguration" (and you have an error about that)

If it that, by waiting for a development of a plugin, perhaps you could contribute to LSP4IJ:

• template: https://github.com/redhat-developer/lsp4ij/tree/main/src/main/resources/templates/typescript-language-server
• doc: https://github.com/redhat-developer/lsp4ij/blob/main/docs/user-defined-ls/typescript-language-server.md

For the template, you can export it and it will generate all JSON files that you have configured. See https://github.com/redhat-developer/lsp4ij/blob/main/docs/UserDefinedLanguageServer.md#exporting-templates

Please note that I am working on installer.json file to provide the capability to install any language server with a JSON description, see redhat-developer/lsp4ij#1047

The server emits messages that indicate that not everything is supported, but basic things like auto completion of tags and filters, jumping to files in extends, completion of view names in url tags do work. Nice :)

Some of the output from the server (no idea if any of it is relevant as I have no knowledge in LSP development):

Please share your LSP traces https://github.com/redhat-developer/lsp4ij/blob/main/docs/UserGuide.md#lsp-console

Ignoring notification for unknown method "workspace/didChangeConfiguration"

It means that djlsp, LSP4IJ by default call it to send configuration. I need to ceck in LSP spec if there is a capability from server which says that the server doesn't support it.

Cancel notification for unknown message id "3"

Strange?

Ignoring notification for unknown method "textDocument/didSave"

If you install https://github.com/redhat-developer/lsp4ij/tree/main?tab=readme-ov-file#testing-nightly-builds perhaps you will not see this error.

Failed to parse library (base): 'base'

It is a business error from djlsp

Pycharm 2025.1.1.1 LSP4IJ 0.13.0 djlsp 1.2.0

[whyscream]

How have you test djlsp?

• Installed djlsp using pipx, binary is at ~/.local/bin/djlsp
• Installed LSP4IJ from the Plugin screen in Pycharm
• Create new Language server dialog:
  • Name: Django Templates language server
  • Server > Command: sh -c "django-template-lsp --enable-log"
  • Mappings > File name patterns:
    • pattern: *.html
    • Language id: left empty

That's it. I created a new Django project using the Pycharm Django project dialog, and added a simple view with templates to do some experimentation.

Currently I don't do a lot of Django development, so not a lot of testing time available. I hope to change that soon ;)

[angelozerr]

Dont hesitate to create a pr on Lsp4ij if you want to 1dd django language server