From c0e15e1141538a0caef9aa92998341c33b9454cb Mon Sep 17 00:00:00 2001
From: Vladan Popovic <vladan.popovic@hm.com>
Date: Tue, 17 Sep 2024 16:36:40 +0200
Subject: [PATCH] cleanup lsp module

---
 lua/lsp.lua | 66 +++++++++++++++--------------------------------------
 1 file changed, 19 insertions(+), 47 deletions(-)

diff --git a/lua/lsp.lua b/lua/lsp.lua
index 68ec12d..85e4cd7 100644
--- a/lua/lsp.lua
+++ b/lua/lsp.lua
@@ -1,6 +1,4 @@
-local on_attach = function(client, bufnr)
-    local augroup = vim.api.nvim_create_augroup("LspFormatting", {})
-
+local common_on_attach = function(client, bufnr)
     -- Mappings.
     vim.keymap.set("n", "K", "<Cmd>lua vim.lsp.buf.hover()<CR>")
     vim.keymap.set("n", "<C-k>", "<cmd>lua vim.lsp.buf.signature_help()<CR>")
@@ -9,11 +7,11 @@ local on_attach = function(client, bufnr)
     vim.keymap.set("n", "<leader>wl", "<cmd>lua print(vim.inspect(vim.lsp.buf.list_workspace_folders()))<CR>")
     vim.keymap.set("n", "<leader>wa", "<cmd>lua vim.lsp.buf.add_workspace_folder()<CR>")
     vim.keymap.set("n", "<leader>wr", "<cmd>lua vim.lsp.buf.remove_workspace_folder()<CR>")
+    vim.keymap.set("n", "<leader>r", "<cmd>lua vim.lsp.buf.rename()<CR>")
 
+    -- Autoformat on save.
     if client.supports_method("textDocument/formatting") then
-        vim.api.nvim_clear_autocmds({ group = augroup, buffer = bufnr })
         vim.api.nvim_create_autocmd("BufWritePre", {
-            group = augroup,
             buffer = bufnr,
             callback = function()
                 vim.lsp.buf.format()
@@ -21,7 +19,7 @@ local on_attach = function(client, bufnr)
         })
     end
 
-    -- use vim's default coloring
+    -- Use vim's default coloring.
     client.server_capabilities.semanticTokensProvider = nil
     for _, group in ipairs(vim.fn.getcompletion("@lsp", "highlight")) do
         vim.api.nvim_set_hl(0, group, {})
@@ -40,16 +38,15 @@ local servers = {
     "ocamllsp",
     "pyright",
     "rnix",
-    "ruff_lsp",
     "terraformls",
     "vimls",
 }
 for _, lsp in ipairs(servers) do
-    nvim_lsp[lsp].setup { capabilities = capabilities, on_attach = on_attach }
+    nvim_lsp[lsp].setup { capabilities = capabilities, on_attach = common_on_attach }
 end
 
 nvim_lsp.rust_analyzer.setup({
-    on_attach = on_attach,
+    on_attach = common_on_attach,
     capabilities = capabilities,
     settings = {
         ["rust-analyzer"] = {
@@ -74,26 +71,21 @@ nvim_lsp.rust_analyzer.setup({
     }
 })
 
-vim.g.code_action_menu_window_border = 'single'
-
--- symbols-outline.nvim
-vim.g.symbols_outline = {
-    highlight_hovered_item = true,
-    show_guides = true,
-    auto_preview = false, -- experimental
-    position = 'right',
-    keymaps = {
-        close = "<Esc>",
-        goto_location = "<Cr>",
-        focus_location = "o",
-        hover_symbol = "<C-space>",
-        rename_symbol = "r",
-        code_actions = "a"
+nvim_lsp.ruff.setup({
+    on_attach = function (client)
+        common_on_attach(client)
+        client.server_capabilities.renameProvider = false
+        client.server_capabilities.hoverProvider = false
+    end,
+    init_options = {
+        settings = {
+            -- Any extra CLI arguments for `ruff` go here.
+            args = {}
+        }
     },
-    lsp_blacklist = {}
-}
+})
 
--- LSP Enable diagnostics
+-- LSP diagnostics.
 vim.lsp.handlers["textDocument/publishDiagnostics"] =
     vim.lsp.with(vim.lsp.diagnostic.on_publish_diagnostics, {
         virtual_text = false,
@@ -101,23 +93,3 @@ vim.lsp.handlers["textDocument/publishDiagnostics"] =
         signs = true,
         update_in_insert = false
     })
-
--- Send diagnostics to quickfix list
-do
-    local method = "textDocument/publishDiagnostics"
-    local default_handler = vim.lsp.handlers[method]
-    vim.lsp.handlers[method] = function(err, method, result, client_id, bufnr, config)
-        default_handler(err, method, result, client_id, bufnr, config)
-        local diagnostics = vim.diagnostic.get()
-        local qflist = {}
-        for bufnr, diagnostic in pairs(diagnostics) do
-            for _, d in ipairs(diagnostic) do
-                d.bufnr = bufnr
-                d.lnum = d.range.start.line + 1
-                d.col = d.range.start.character + 1
-                d.text = d.message
-                table.insert(qflist, d)
-            end
-        end
-    end
-end