115 lines
4.1 KiB
Lua
115 lines
4.1 KiB
Lua
-- ============================================================================
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-- NVIM-CMP: Autocompletion engine
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-- ============================================================================
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-- Main completion plugin with multiple sources: LSP, buffer, path, snippets,
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-- copilot. Shows completion menu with icons. LuaSnip for snippet expansion.
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-- Tab/Shift-Tab to navigate, Enter to confirm, C-Space to trigger manually.
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-- ============================================================================
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return {
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"hrsh7th/nvim-cmp",
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event = "InsertEnter",
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dependencies = {
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"hrsh7th/cmp-buffer", -- source for text in buffer
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"hrsh7th/cmp-path", -- source for file system paths
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"hrsh7th/cmp-nvim-lsp", -- LSP completion source
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{
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"L3MON4D3/LuaSnip",
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-- follow latest release.
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version = "v2.*", -- Replace <CurrentMajor> by the latest released major (first number of latest release)
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-- install jsregexp (optional!).
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build = "make install_jsregexp",
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},
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"saadparwaiz1/cmp_luasnip", -- for autocompletion
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"rafamadriz/friendly-snippets", -- useful snippets
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"onsails/lspkind.nvim", -- vs-code like pictograms
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},
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config = function()
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local cmp = require("cmp")
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local luasnip = require("luasnip")
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local lspkind = require("lspkind")
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-- loads vscode style snippets from installed plugins (e.g. friendly-snippets)
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require("luasnip.loaders.from_vscode").lazy_load()
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cmp.setup({
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completion = {
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completeopt = "menu,menuone,preview,noselect",
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-- Performance optimizations
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keyword_length = 2, -- Start completion after 2 characters
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keyword_pattern = [[\%(-\?\d\+\%(\.\d\+\)\?\|\h\w*\%(-\w*\)*\)]], -- Better keyword pattern
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},
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snippet = { -- configure how nvim-cmp interacts with snippet engine
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expand = function(args)
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luasnip.lsp_expand(args.body)
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end,
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},
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mapping = cmp.mapping.preset.insert({
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["<C-k>"] = cmp.mapping.select_prev_item(), -- previous suggestion
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["<C-j>"] = cmp.mapping.select_next_item(), -- next suggestion
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["<C-b>"] = cmp.mapping.scroll_docs(-4),
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["<C-f>"] = cmp.mapping.scroll_docs(4),
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["<C-Space>"] = cmp.mapping.complete(), -- show completion suggestions
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["<C-e>"] = cmp.mapping.abort(), -- close completion window
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["<CR>"] = cmp.mapping.confirm({ select = false }),
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-- Tab: cmp selection > snippet jump > fallback
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["<Tab>"] = cmp.mapping(function(fallback)
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if cmp.visible() then
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cmp.select_next_item()
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elseif luasnip.expand_or_jumpable() then
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luasnip.expand_or_jump()
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else
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fallback()
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end
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end, { "i", "s" }),
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-- Shift-Tab to go back in snippets
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["<S-Tab>"] = cmp.mapping(function(fallback)
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if luasnip.jumpable(-1) then
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luasnip.jump(-1)
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else
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fallback()
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end
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end, { "i", "s" }),
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}),
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-- sources for autocompletion
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sources = cmp.config.sources({
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{ name = "nvim_lsp", priority = 1000 },
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{ name = "luasnip", priority = 750 }, -- snippets
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{ name = "buffer", priority = 500, keyword_length = 3 }, -- text within current buffer
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{ name = "path", priority = 250 }, -- file system paths
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}),
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-- configure lspkind for vs-code like pictograms in completion menu
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formatting = {
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format = lspkind.cmp_format({
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maxwidth = 50,
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ellipsis_char = "...",
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}),
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},
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-- Performance optimizations
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performance = {
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debounce = 50, -- Debounce completion requests
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throttle = 100, -- Throttle completion requests
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fetching_timeout = 200, -- Timeout for fetching completions
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},
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-- Reduce completion menu size for better performance
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window = {
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completion = {
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border = "rounded",
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scrollbar = false,
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col_offset = -3,
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side_padding = 0,
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},
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documentation = {
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border = "rounded",
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scrollbar = false,
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},
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},
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})
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end,
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}
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