refactor lsp config

1 files changed, 71 insertions, 0 deletions

diff --git a/.config/nvim/lua/getchoo/lsp/config/cmp.lua b/.config/nvim/lua/getchoo/lsp/config/cmp.lua
new file mode 100644
index 0000000..bfade29
--- /dev/null
+++ b/.config/nvim/lua/getchoo/lsp/config/cmp.lua
@@ -0,0 +1,71 @@
+local cmp = require("cmp")
+local mapping = cmp.mapping
+local luasnip = require("luasnip")
+
+local M = {}
+
+local has_words_before = function()
+  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 feedkey = function(key, mode)
+  vim.api.nvim_feedkeys(vim.api.nvim_replace_termcodes(key, true, true, true), mode, true)
+end
+
+M.config = {
+  snippet = {
+    expand = function(args)
+      vim.fn["vsnip#anonymous"](args.body)
+      luasnip.lsp_expand(args.body)
+    end,
+  },
+  mapping = mapping.preset.insert({
+    ["<C-Space>"] = mapping.complete(),
+    ["<CR>"] = mapping.confirm({
+      select = true,
+    }),
+    ["<Tab>"] = cmp.mapping(function(fallback)
+      if cmp.visible() then
+        cmp.select_next_item()
+      elseif luasnip.expand_or_jumpable() then
+        luasnip.expand_or_jump()
+      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(fallback)
+      if cmp.visible() then
+        cmp.select_prev_item()
+      elseif luasnip.jumpable(-1) then
+        luasnip.jump(-1)
+      elseif vim.fn["vsnip#available"](-1) == 1 then
+        feedkey("<Plug>(vsnip-jump-prev)", "")
+      else
+        fallback()
+      end
+    end, { "i", "s" }),
+  }),
+  sources = cmp.config.sources({
+    { name = "nvim_lsp" },
+    { name = "luasnip" },
+    { name = "vsnip" },
+  }, {
+    { name = "buffer" },
+  }),
+}
+
+local capabilities = require("cmp_nvim_lsp").update_capabilities(vim.lsp.protocol.make_client_capabilities())
+capabilities.textDocument.completion.completionItem.snippetSupport = true
+
+M.capabilities = capabilities
+
+M.on_attach = function(_, bufnr)
+  vim.api.nvim_buf_set_option(bufnr, "omnifunc", "v:lua.vim.lsp.omnifunc")
+end
+
+return M