Configured omnifunc for lsp

debian_based/usr_share/nvim/sysinit.vim

@@ -41,33 +41,32 @@ if !empty($NVIM_PLUGIN_BOOTSTRAP)
 	finish
 endif
 
-" vim-rooter project patterns
 
 lua << EOF
+	-- default opts
+        local opts = { noremap = true, silent = true }
+
+	-- vim-rooter
+        vim.g.rooter_patterns = { '.git', 'src', 'include' }
 
         -- Fugitive (git integration)
 
-        local opts = { noremap = true, silent = true }
 	vim.api.nvim_set_keymap('n', '<leader>gb', ':Git blame<CR>', opts)
 
 	-- Telescope (finder)
 	local telescope = require('telescope')
 	-- require('telescope').load_extension 'fzf'
 
-	local opts = { noremap = true, silent = true}
-	vim.api.nvim_set_keymap('n', '<leader>fg', [[<cmd>lua require('telescope.builtin').live_grep()<CR>]], opts)
-	vim.api.nvim_set_keymap('n', '<leader>fb', [[<cmd>lua require('telescope.builtin').buffers()<CR>]], opts)
-	vim.api.nvim_set_keymap('n', '<leader>fh', [[<cmd>lua require('telescope.builtin').help_tags()<CR>]], opts)
-
 
-        vim.g.rooter_patterns = { '.git', 'src', 'include' }
         function find_files_in_project()
             local opts = { noremap = true, silent = true, cwd = vim.fn.FindRootDirectory() }
             require('telescope.builtin').find_files(opts)
 	end
 
         vim.api.nvim_set_keymap('n', '<leader>ff', [[<cmd>lua find_files_in_project()<CR>]], opts)
-
+	vim.api.nvim_set_keymap('n', '<leader>fg', [[<cmd>lua require('telescope.builtin').live_grep()<CR>]], opts)
+	vim.api.nvim_set_keymap('n', '<leader>fb', [[<cmd>lua require('telescope.builtin').buffers()<CR>]], opts)
+	vim.api.nvim_set_keymap('n', '<leader>fh', [[<cmd>lua require('telescope.builtin').help_tags()<CR>]], opts)
 
 	-- Treesitter
 	-- TODO: configure folds etc.
@@ -77,7 +76,10 @@ lua << EOF
 	-- LSP
 	-- TODO: think about integrating with telescope (https://github.com/nvim-telescope/telescope.nvim#neovim-lsp-pickers)
 	local on_attach = function(client, bufnr)
-		local opts = { noremap = true, silent = true}
+		-- use omnifunc for completion (<C-x><C-o>)
+		vim.api.nvim_buf_set_option(bufnr, 'omnifunc', 'v:lua.vim.lsp.omnifunc')
+		-- omnifunc is mutually exclusive with nvim-cmp
+
 		vim.api.nvim_buf_set_keymap(bufnr, 'n', 'K', '<cmd>lua vim.lsp.buf.hover()<CR>', opts)
 		vim.api.nvim_buf_set_keymap(bufnr, 'n', 'gD', '<cmd>lua vim.lsp.buf.declaration()<CR>', opts)
 		vim.api.nvim_buf_set_keymap(bufnr, 'n', 'gd', '<cmd>lua vim.lsp.buf.definition()<CR>', opts)
@@ -100,14 +102,16 @@ lua << EOF
 		vim.api.nvim_buf_set_keymap(bufnr, 'n', '<leader>fmt', '<cmd>lua vim.lsp.buf.formatting()<CR>', opts)
 
 		-- These have dependencies
-                vim.api.nvim_buf_set_keymap(bufnr, 'n', '<leader>so', [[<cmd>lua require('telescope.builtin').lsp_document_symbols()<CR>]], opts)
+		-- immediate quickfix
 		vim.api.nvim_buf_set_keymap(bufnr, 'n', '<leader>q', [[<cmd>lua require('lsp_code_action_no_menu')()<CR>]], opts)
 
+		-- telescope
+                vim.api.nvim_buf_set_keymap(bufnr, 'n', '<leader>so', [[<cmd>lua require('telescope.builtin').lsp_document_symbols()<CR>]], opts)
+		-- TODO: check if <leader>gr works for references. If not, think about using telescope.
+
 	end
 
 	require('lspconfig').clangd.setup{
 		on_attach = on_attach
 	}
-
-
 EOF