apple's sourcekit-lsp doesn't support xcode project. but I found it provide a build server protocol to integrate with other build system. this is why I created this repo.

This repo aims to integrate xcode with sourcekit-lsp, so I can develop iOS with my favorate editor.

clone this repo, and just ln -s ABSPATH/TO/xcode-build-server /usr/local/bin

xcode build, copy the build log, and then in Workspace root, run:

pbpaste | xcode-build-server parse

this should generate buildServer.json, which hook sourcekit-lsp to use the buildServer to provide compile infomation and a .compile hidden file, which provide actual compile command

last, restart your language server, and it should work.

if your build environment changes(eg: add new files, switch sdk, debug/release, conditional macro, etc..) and language server work incorrectly, just repeat previous action to update compile info

PS: Recent Xcode may copy failed. if the case, use the export button to save log to file, and in workspace root run:

xcode-build-server parse <PATH/TO/Log>

xcode-build-server provider post-build-action script to auto parse newest log into .compile and generate buildServer.json.
just add xcode-build-server postaction | bash & into script in scheme -> Build -> Post-actions. and script should choose provide build settings from target

after this, the compile info should auto generate when xcode build and no need further manual parse.

sourcekit-lsp use indexing while build. if you found find definition or references is not work correctly, just build it from xcode to update index

current implementation is basicly work, but may have some rough edges. Please report issue if you have any problem. If you want to help, can check the open issue list. PR is always welcome.