1 files changed, 145 insertions, 0 deletions
diff --git a/config/nvim/lua/lsp.lua b/config/nvim/lua/lsp.lua
new file mode 100644
index 0000000..1056431
--- /dev/null
+++ b/config/nvim/lua/lsp.lua
@@ -0,0 +1,145 @@
+local cmp = require("cmp")
+local nvim_lsp = require("lspconfig")
+local cmp_window = require("cmp.utils.window")
+
+vim.o.completeopt = "menuone,noselect"
+vim.o.shortmess = vim.o.shortmess .. "c"
+
+local function on_attach(client, bufn)
+    local function map(...)
+        vim.api.nvim_buf_set_keymap(bufn, ...)
+    end
+
+    local function buf_set_option(...)
+	vim.api.nvim_buf_set_option(bufn, ...)
+    end
+
+    local opts = { noremap = true, silent = true }
+    map("n", "gD", "<Cmd>lua vim.lsp.buf.declaration()<CR>", opts)
+    map("n", "gd", "<Cmd>lua vim.lsp.buf.definition()<CR>", opts)
+    map("n", "K", "<Cmd>lua vim.lsp.buf.hover()<CR>", opts)
+    map("n", "gi", "<Cmd>lua vim.lsp.buf.implementation()<CR>", opts)
+    map("n", "<C-k>", "<Cmd>lua vim.lsp.buf.signature_help()<CR>", opts)
+    map("n", "<leader>D", "<Cmd>lua vim.lsp.buf.type_definition()<CR>", opts)
+    map("n", "gr", "<Cmd>lua vim.lsp.buf.references()<CR>", opts)
+    map("n", "<leader>e", "<cmd>lua vim.lsp.diagnostic.show_line_diagnostics()<CR>", opts)
+    map("n", "[d", "<Cmd>lua vim.lsp.diagnostic.goto_prev()<CR>", opts)
+    map("n", "]d", "<Cmd>lua vim.lsp.diagnostic.goto_next()<CR>", opts)
+    map("n", "<leader>q", "<Cmd>lua vim.lsp.diagnostic.set_loclist()<CR>", opts)
+    map("n", "ga", "<Cmd>lua vim.lsp.buf.code_action()<CR>", opts)
+end
+
+local function has_words_before()
+    local line, col = unpack(vim.api.nvim_win_get_cursor(0))
+    return col ~= 0 and vim.api.nvim_buf_get_lines(0, line - 1, line, true)[1]:sub(col, col):match("%s") == nil
+end
+
+local function feedkey(key, mode)
+    vim.api.nvim_feedkeys(vim.api.nvim_replace_termcodes(key, true, true, true), mode, true)
+end
+
+local function border(hl_name)
+    return {
+        { "╭", hl_name },
+        { "─", hl_name },
+        { "╮", hl_name },
+        { "│", hl_name },
+        { "╯", hl_name },
+        { "─", hl_name },
+        { "╰", hl_name },
+        { "│", hl_name },
+    }
+end
+
+cmp_window.info_ = cmp_window.info
+cmp_window.info = function(self)
+    local info = self:info_()
+    info.scrollable = false
+    return info
+end
+
+cmp.setup({
+    window = {
+        completion = {
+            border = border "CmpBorder",
+            winhighlight = "Normal:CmpPmenu,CursorLine:PmenuSel,Search:None",
+        },
+        documentation = {
+            border = border "CmpDocBorder"
+        },
+    },
+    snippet = {
+        expand = function(args)
+            vim.fn["vsnip#anonymous"](args.body)
+        end,
+    },
+    mapping = cmp.mapping.preset.insert({
+        ['<C-b>'] = cmp.mapping.scroll_docs(-4),
+        ['<C-f>'] = cmp.mapping.scroll_docs(4),
+        ['<C-Space>'] = cmp.mapping.complete(),
+        ['<C-e>'] = cmp.mapping.abort(),
+        ['<CR>'] = cmp.mapping.confirm({select = true}),
+        ["<Tab>"] = cmp.mapping(function(fallback)
+            if cmp.visible() then
+                cmp.select_next_item()
+            elseif vim.fn["vsnip#available"](1) == 1 then
+                feedkey("<Plug>(vsnip-expand-or-jump)", "")
+            elseif has_words_before() then
+                cmp.complete()
+            else
+                fallback()
+            end
+        end, {"i", "s"}),
+ 
+        ["<S-Tab"] = cmp.mapping(function()
+            if cmp.visible() then
+                cmp.select_prev_item()
+            elseif vim.fn["vsnip#jumpable"](-1) == 1 then
+                feedkey("<Plug>(vsnip-jump-prev)", "")
+            end
+        end, {"i", "s"}),
+    }),
+    sources = cmp.config.sources({
+        { name = "nvim_lsp" },
+        { name = "vsnip" },
+        { name = "treesitter" },
+        { name = "path", option = { trailing_slash = true }},
+        { name = "buffer" }
+    }),
+})
+
+cmp.setup.cmdline(":", {
+    mapping = cmp.mapping.preset.cmdline(),
+    sources = cmp.config.sources({
+        { name = "path" },
+    }, {
+        { name = "cmdline" },
+    }),
+})
+
+vim.lsp.handlers["textDocument/publishDiagnostics"] = vim.lsp.with(
+    vim.lsp.diagnostic.on_publish_diagnostics, {
+        virtual_text = true,
+        signs = true,
+        update_in_insert = true
+    }
+)
+
+local capabilities = require("cmp_nvim_lsp").default_capabilities(vim.lsp.protocol.make_client_capabilities())
+
+local servers = { "ccls", "bashls", "rnix", "texlab", "lua_ls" }
+
+for _, lang in pairs(servers) do
+    nvim_lsp[lang].setup({
+        root_dir = vim.loop.cwd,
+        on_attach = on_attach,
+        capabilities = capabilities
+    })
+end
+
+require("nvim-treesitter.configs").setup({
+    highlight = { enable = true, },
+})
+
+require("gitsigns").setup({})
+