123 lines
4.5 KiB
Lua
123 lines
4.5 KiB
Lua
-- LSP stack:
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-- mason → installs language servers automatically
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-- lspconfig → configures them
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-- nvim-cmp → completion popup
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-- LuaSnip → snippet engine (required by cmp)
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--
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-- LSP keymaps (active when a file has an attached language server):
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-- K → hover documentation
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-- gd → go to definition
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-- gr → list references
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-- <leader>rn → rename symbol
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-- <leader>ca → code actions (quick fixes, imports, etc.)
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-- <leader>d → show line diagnostics
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-- [d / ]d → jump to prev/next diagnostic
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return {
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-- ── Mason: auto-installs language servers ──────────────────────────────────
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{
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"williamboman/mason.nvim",
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config = function()
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require("mason").setup()
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end,
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},
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{
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"williamboman/mason-lspconfig.nvim",
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dependencies = { "williamboman/mason.nvim" },
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config = function()
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require("mason-lspconfig").setup({
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ensure_installed = {
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"bashls", -- Bash
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"pyright", -- Python
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"omnisharp", -- C#
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},
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automatic_installation = true,
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})
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end,
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},
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-- ── Completion ─────────────────────────────────────────────────────────────
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{
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"hrsh7th/nvim-cmp",
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dependencies = {
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"hrsh7th/cmp-nvim-lsp", -- LSP completions
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"hrsh7th/cmp-buffer", -- words from current buffer
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"hrsh7th/cmp-path", -- file paths
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"L3MON4D3/LuaSnip", -- snippet engine
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"saadparwaiz1/cmp_luasnip",
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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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cmp.setup({
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snippet = {
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expand = function(args) luasnip.lsp_expand(args.body) end,
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},
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mapping = cmp.mapping.preset.insert({
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["<C-Space>"] = cmp.mapping.complete(),
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["<CR>"] = cmp.mapping.confirm({ select = true }),
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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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["<S-Tab>"] = cmp.mapping(function(fallback)
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if cmp.visible() then
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cmp.select_prev_item()
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elseif 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 = cmp.config.sources({
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{ name = "nvim_lsp" },
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{ name = "luasnip" },
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}, {
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{ name = "buffer" },
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{ name = "path" },
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}),
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})
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end,
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},
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-- ── LSP config ─────────────────────────────────────────────────────────────
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{
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"neovim/nvim-lspconfig",
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dependencies = {
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"williamboman/mason-lspconfig.nvim",
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"hrsh7th/cmp-nvim-lsp",
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},
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config = function()
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local lspconfig = require("lspconfig")
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local capabilities = require("cmp_nvim_lsp").default_capabilities()
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-- Keymaps applied whenever an LSP attaches to a buffer
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vim.api.nvim_create_autocmd("LspAttach", {
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callback = function(ev)
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local map = vim.keymap.set
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local opts = function(desc) return { buffer = ev.buf, desc = desc } end
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map("n", "K", vim.lsp.buf.hover, opts("Hover docs"))
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map("n", "gd", vim.lsp.buf.definition, opts("Go to definition"))
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map("n", "gr", vim.lsp.buf.references, opts("References"))
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map("n", "<leader>rn", vim.lsp.buf.rename, opts("Rename symbol"))
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map("n", "<leader>ca", vim.lsp.buf.code_action, opts("Code action"))
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map("n", "<leader>d", vim.diagnostic.open_float, opts("Line diagnostics"))
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map("n", "[d", vim.diagnostic.goto_prev, opts("Prev diagnostic"))
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map("n", "]d", vim.diagnostic.goto_next, opts("Next diagnostic"))
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end,
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})
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lspconfig.bashls.setup({ capabilities = capabilities })
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lspconfig.pyright.setup({ capabilities = capabilities })
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lspconfig.omnisharp.setup({ capabilities = capabilities })
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end,
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},
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}
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