Use ssh:// protocol to install - http "The unauthenticated git protocol on port 9418 is no longer supported."

[terokarvinen]

Installation works by changing the protocol to SSH

$ sudo luarocks install --server=ssh://luarocks.org/dev lua-lsp   # works

Installation fails with HTTP URL which is currently suggested in lua-lsp README

$ sudo luarocks install --server=http://luarocks.org/dev lua-lsp   # fails
...
fatal: remote error:
  The unauthenticated git protocol on port 9418 is no longer supported.
Please see https://github.blog/2021-09-01-improving-git-protocol-security-github/ for more information.

This change will be made permanent 2022-04-16. We're currently on brownout period, so the old command will work intermittently.

I'm not familiar with luarocks, simply providing the command that worked for me on Debian 11-Bullseye. I noticed the error while writing installation instructions for Micro editor's new LSP Plugin. It seems that Lua-lsp works to some extent with this Micro's LSP plugin, supporting linting (in the left side gutter) and alt-D jump to definition inside the same file.

[meykbelieve]

This doesnt work, and i get the following error:
Warning: Failed searching manifest: Unsupported protocol ssh
Installing https://luarocks.org/lua-lsp-0.1.0-2.src.rock

Error: Failed finding Lua header files. You may need to install them or configure LUA_INCDIR.