Refactor nvim config, thanks ThePrimeagen

.config/nvim/after/plugin/lsp.lua

@@ -0,0 +1,164 @@
+local Remap = require("halfdan.keymap")
+local nnoremap = Remap.nnoremap
+local inoremap = Remap.inoremap
+
+-- 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,
+  }
+)
+
+local saga = require 'lspsaga'
+saga.init_lsp_saga({
+  -- symbols in winbar
+  symbol_in_winbar = true,
+  winbar_file_format = function() 
+      return vim.fn.expand("%=%m %f")
+  end,
+})
+
+-- 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
+
+-- 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
+]])
+
+
+
+-- Diagnostic keymaps
+vim.api.nvim_set_keymap('n', '<leader>e', '<cmd>lua vim.diagnostic.open_float()<CR>', { noremap = true, silent = true })
+vim.api.nvim_set_keymap('n', '<leader>q', '<cmd>lua vim.diagnostic.setloclist()<CR>', { noremap = true, silent = true })
+
+-- LSP settings
+local lspconfig = require 'lspconfig'
+local function config(_config)
+	return vim.tbl_deep_extend("force", {
+		capabilities = require("cmp_nvim_lsp").update_capabilities(vim.lsp.protocol.make_client_capabilities()),
+		on_attach = function()
+      -- local opts = { noremap = true, silent = true }
+      nnoremap("gd", function() vim.lsp.buf.definition() end)
+      nnoremap("gD", function() vim.lsp.buf.declaration() end)
+      nnoremap("K", function() vim.lsp.buf.hover() end)
+      nnoremap("<leader>vws", function() vim.lsp.buf.workspace_symbol() end)
+      nnoremap("<leader>vd", function() vim.diagnostic.open_float() end)
+      nnoremap("[d", function() vim.diagnostic.goto_next() end)
+      nnoremap("]d", function() vim.diagnostic.goto_prev() end)
+      nnoremap("<leader>vca", function() vim.lsp.buf.code_action() end)
+      nnoremap("<leader>vrr", function() vim.lsp.buf.references() end)
+      nnoremap("<leader>vrn", function() vim.lsp.buf.rename() end)
+      inoremap("<C-h>", function() vim.lsp.buf.signature_help() end)
+      --vim.api.nvim_buf_set_keymap(bufnr, 'n', 'gi', '<cmd>lua vim.lsp.buf.implementation()<CR>', opts)
+      -- vim.api.nvim_buf_set_keymap(bufnr, 'n', '<C-k>', '<cmd>lua vim.lsp.buf.signature_help()<CR>', opts)
+      -- vim.api.nvim_buf_set_keymap(bufnr, 'n', '<leader>wa', '<cmd>lua vim.lsp.buf.add_workspace_folder()<CR>', opts)
+      -- vim.api.nvim_buf_set_keymap(bufnr, 'n', '<leader>wr', '<cmd>lua vim.lsp.buf.remove_workspace_folder()<CR>', opts)
+      -- vim.api.nvim_buf_set_keymap(bufnr, 'n', '<leader>wl', '<cmd>lua print(vim.inspect(vim.lsp.buf.list_workspace_folders()))<CR>', opts)
+      -- vim.api.nvim_buf_set_keymap(bufnr, 'n', '<leader>D', '<cmd>lua vim.lsp.buf.type_definition()<CR>', opts)
+      -- vim.api.nvim_buf_set_keymap(bufnr, 'n', '<leader>ca', '<cmd>lua vim.lsp.buf.code_action()<CR>', opts)
+      -- vim.api.nvim_buf_set_keymap(bufnr, 'n', '<leader>so', [[<cmd>lua require('telescope.builtin').lsp_document_symbols()<CR>]], opts)
+      -- vim.cmd [[ command! Format execute 'lua vim.lsp.buf.formatting()' ]]
+		end,
+	}, _config or {})
+end
+
+lspconfig['elixirls'].setup{config({
+  cmd = { "/Users/fbecker18/opt/elixir-ls/language_server.sh"}
+})}
+
+-- Enable the following language servers
+local servers = { 'gopls', 'julials', 'rust_analyzer', 'pyright' }
+for _, lsp in ipairs(servers) do
+  lspconfig[lsp].setup(config())
+end
+
+require('rust-tools').setup({
+    tools = {
+        inlay_hints = {
+            parameter_hints_prefix = "← ",
+            other_hints_prefix = "➜ ",
+        }
+    }
+})
+
+--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
+--]])