LunarVim.LunarVim/ftplugin/ruby.lua

-- If you are using rvm, make sure to change below configuration
require'lspconfig'.solargraph.setup {
    cmd = {DATA_PATH .. "/lspinstall/ruby/solargraph/solargraph", "--stdio"},
    on_attach = require'lsp'.common_on_attach,
    handlers = {
        ["textDocument/publishDiagnostics"] = vim.lsp.with(
            vim.lsp.diagnostic.on_publish_diagnostics, {
                virtual_text = O.lang.ruby.diagnostics.virtual_text,
                signs = O.lang.ruby.diagnostics.signs,
                underline = O.lang.ruby.diagnostics.underline,
                update_in_insert = true

            })
    },
    filetypes = O.lang.ruby.filetypes
}

if O.lang.ruby.autoformat then
    require('lv-utils').define_augroups({
        _ruby_format = {
            {'BufWritePre', '*.rb', 'lua vim.lsp.buf.formatting_sync(nil,1000)'}
        }
    })
end