Plugin Request: Language server protocol

[fightthepower]

There is already a thread in main geany issues but I am starting a new thread here. LSP is a protocol used for providing programming language-specific features such as syntax highlighting, symbol's definition, code completion etc. For many popular IDE's LSP is already available or in development. A LSP plugin in geany will enhance its capability and productivity.

[elextr]

Indeed LSP should be a plugin, but Geany itself needs some modification to allow LSP data to be used instead of Scintilla lexers, ctags parsers and other places.

IIUC thats where the last attempt to make such a thing failed.

[fightthepower]

Is there any plan on implementing it? This could be one of the most important plugin for a code writer and 100s of languages already provides LSP support.
Can I ask when the new version is going to release? current version is an year old.

[elextr]

Next release is likely 25th October 2020, if all goes well.

As to LSP or other external language mechanisms (eg libclang), well if somebody plans it it will be planned. Geany being a totally volunteer project it depends on people doing stuff, there are no paid or permanent workers or contributors.

[elextr]

And I should add, this being the plugins issues that plugins are individually contributed.

I would expect that first there needs to be some discussion about how Geany would get and use data from LSP/libclang type plugins in cooperation with the plugin development, and that would mostly happen on the Geany issues, not here. Then plugins can be developed.

[sagarchalise]

Well, I am giving this a try in current architecture of geany plugin along with what scintilla offers. I have some workflow in mind but it is currently quite buggy. Most of LSP interation is taken from gnome-builder
https://github.com/sagarchalise/geany-lsp

[KhazAkar]

For LSP-related plugins for geany, there's some:
https://github.com/notetau/geany-jedi-complete - for Python
https://github.com/notetau/geany-clang-complete - for C/C++/ObjC using libclang
https://github.com/notetau/geany-complete-core - core for above two
https://github.com/jakeanq/gycm - YouCompleteMe plugin for Geany utilizing ycmd server.
I hope that at least some of them will be in this repository :)

[fightthepower]

@KhazAkar Thank you for the links but all of those projects are not updated for the past 5 years. I am using the latest version of geany with gtk3 and I am not sure whether they will work well with the new version of geany. are you using these plugins, particularly, gycm with the latest version of geany?

[KhazAkar]

@fightthepower
I'm using GYCM and works okay, but you need to do 2 fixes:

1. Add missing #include
2. do try (); catch () for every function body inside gycm, beacuse when opening big files C++ exception is leaking to geany-plugins core C code and it crashes geany. With those 2, GYCM is closest to have properly working LSP implementation for geany as I'm aware of.
   You can find me and others on IRC, I highly encourage to join us there :)

[kenneth-Q]

I think this project might help.

[KhazAkar]

@KhazAkar Thank you for the links but all of those projects are not updated for the past 5 years. I am using the latest version of geany with gtk3 and I am not sure whether they will work well with the new version of geany. are you using these plugins, particularly, gycm with the latest version of geany?

For gycm I've created a fork with those fixes I've mentioned in my comment :)