[Enhancement] Create cache in a user directory

[itaranto]

How are you using the lua-language-server?

NeoVim

Which OS are you using?

Linux

What is the issue affecting?

Other

Expected Behaviour

lua-language-server should create the cache directory on the user's home directory. On Linux this should be in ~/.cache/lua-language-server/ ideally.

Actual Behaviour

lua-language-server fails to start because it attempts to create the cache directory in a system directory which a regular user doesn't have permissions to write to.

Reproduction steps

1. Download lua-language-server-3.9.1-linux-x64.tar.gz and extract it to /opt/lua-language-server/
2. Make sure the owner of /opt/lua-language-server/ is root:root.
3. Execute /opt/lua-language-server/bin/lua-language-server --help
4. See error: lua-language-server: create_directories: "/opt/lua-language-server/log/cache/40815": (generic:13)Permission denied

Additional Notes

No response

Log File

No response

[detrohutt]

As a workaround this can be addressed by setting the logpath command line option to a location the user has access to. In my case (setting up neovim on Windows) I was able to get it working by adding the option to the cmd array in the lsp configuration file.

-- ./nvim/lsp/luals.lua

return {
  cmd = {'lua-language-server', '--logpath=C:/Users/aj_ro/AppData/Local/Temp/luals'},
  filetypes = {'lua'},
  root_markers = {'.luarc.json', '.luarc.jsonc'},
}

[tkatter]

Ran into this today since the only package managers listed on the Install page for Neovim are 3 mac package managers, mise-en-place, and asdf. I'm also on Linux, so naturally I said 'ok give me the tar then', extracted into /opt/lua-language-server, symlinked the binary to be in my path ln -s /opt/lua-language-server/bin/lua-language-server /usr/local/bin/lua-language-server and same issue, fails to start because it can't create a log directory in /opt/lua-language-server. It should not be creating log directories here in the first place, like OP said, should use the user's ~/.cache.