dotfiles/.config/nvim/lua/lsp.lua

-- TODO figure out why this don't work
vim.fn.sign_define(
    "LspDiagnosticsSignError",
    {texthl = "LspDiagnosticsSignError", text = "", numhl = "LspDiagnosticsSignError"}
)
vim.fn.sign_define(
    "LspDiagnosticsSignWarning",
    {texthl = "LspDiagnosticsSignWarning", text = "", numhl = "LspDiagnosticsSignWarning"}
)
vim.fn.sign_define(
    "LspDiagnosticsSignHint",
    {texthl = "LspDiagnosticsSignHint", text = "", numhl = "LspDiagnosticsSignHint"}
)
vim.fn.sign_define(
    "LspDiagnosticsSignInformation",
    {texthl = "LspDiagnosticsSignInformation", text = "", numhl = "LspDiagnosticsSignInformation"}
)

-- Set Default Prefix.
-- Note: You can set a prefix per lsp server in the lv-globals.lua file
vim.lsp.handlers["textDocument/publishDiagnostics"] = vim.lsp.with(
  vim.lsp.diagnostic.on_publish_diagnostics, {
    virtual_text = {
      prefix = "",
      spacing = 1,
    },
    signs = true,
    underline = true,
  }
)

-- symbols for autocomplete
vim.lsp.protocol.CompletionItemKind = {
    "   (Text) ",
    "   (Method)",
    "   (Function)",
    "   (Constructor)",
    " ﴲ  (Field)",
    "[] (Variable)",
    "   (Class)",
    " ﰮ  (Interface)",
    "   (Module)",
    " 襁 (Property)",
    "   (Unit)",
    "   (Value)",
    " 練 (Enum)",
    "   (Keyword)",
    "   (Snippet)",
    "   (Color)",
    "   (File)",
    "   (Reference)",
    "   (Folder)",
    "   (EnumMember)",
    " ﲀ  (Constant)",
    " ﳤ  (Struct)",
    "   (Event)",
    "   (Operator)",
    "   (TypeParameter)"
}

local function documentHighlight(client, bufnr)
    -- Set autocommands conditional on server_capabilities
    if client.resolved_capabilities.document_highlight then
        vim.api.nvim_exec(
            [[
      hi LspReferenceRead cterm=bold ctermbg=red guibg=#464646
      hi LspReferenceText cterm=bold ctermbg=red guibg=#464646
      hi LspReferenceWrite cterm=bold ctermbg=red guibg=#464646
      augroup lsp_document_highlight
        autocmd! * <buffer>
        autocmd CursorHold <buffer> lua vim.lsp.buf.document_highlight()
        autocmd CursorMoved <buffer> lua vim.lsp.buf.clear_references()
      augroup END
    ]],
            false
        )
    end
end

require'lspconfig'.elixirls.setup{}

-- needed for the LSP to recognize elixir files (alternativly just use elixir-editors/vim-elixir)
vim.cmd([[
  au BufRead,BufNewFile *.ex,*.exs set filetype=elixir
  au BufRead,BufNewFile *.eex,*.leex,*.sface set filetype=eelixir
  au BufRead,BufNewFile mix.lock set filetype=elixir
]])

require("lspconfig").gopls.setup({
	cmd = { "gopls", "serve" },
	settings = {
		gopls = {
			analyses = {
				unusedparams = true,
			},
			staticcheck = true,
		},
	},
})

require'lspconfig'.julials.setup{}

require'lspconfig'.pyright.setup{}

require("lspconfig").rust_analyzer.setup({
    cmd = { "rustup", "run", "nightly", "rust-analyzer"},
    --[[
    settings = {
            rust = {
            unstable_features = true,
            build_on_save = false,
            all_features = true,
        },
    }
    --]]
})

vim.g.symbols_outline = {
    auto_close = true,
    highlight_hovered_item = true,
    show_guides = true,
    relative_width = true,
    width = 25,
}

vim.cmd([[
    augroup
        autocmd!
        autocmd BufWritePre *.go lua vim.lsp.buf.formatting_sync(nil, 100)
        autocmd BufWritePre *.rs lua vim.lsp.buf.formatting_sync(nil, 100)
        autocmd BufWritePre *.ex,*.exs lua vim.lsp.buf.formatting_sync(nil, 100)
        autocmd BufWritePre *.py lua vim.lsp.buf.formatting_sync(nil, 100)
    augroup END
]])