refactor lsp config

6 files changed, 226 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
diff --git a/.config/nvim/lua/getchoo/lsp/config/init.lua b/.config/nvim/lua/getchoo/lsp/config/init.lua
new file mode 100644
index 0000000..b136dcf
--- /dev/null
+++ b/.config/nvim/lua/getchoo/lsp/config/init.lua
@@ -0,0 +1,34 @@
+-- wrapper for all configs
+local cmp = require("getchoo.lsp.config.cmp")
+local lsp_config = require("getchoo.lsp.config.lsp_config")
+local mason = require("getchoo.lsp.config.mason")
+local null_ls = require("getchoo.lsp.config.null_ls")
+
+local M = {}
+
+M.bufferline = {
+  options = {
+    numbers = "ordinal",
+    diagnostics = "nvim_lsp",
+    always_show_bufferline = false,
+  },
+}
+
+M.cmp = cmp.config
+
+M.lsp_servers = lsp_config.servers
+
+M.mason_tool_installer = mason.mason_tool_installer
+M.mason_lsp = mason.mason_lsp_config
+
+M.null_ls = null_ls.config
+
+M.tree = {}
+
+M.treesitter = {
+  auto_install = true,
+}
+
+M.trouble = {}
+
+return M
diff --git a/.config/nvim/lua/getchoo/lsp/config/lsp_config.lua b/.config/nvim/lua/getchoo/lsp/config/lsp_config.lua
new file mode 100644
index 0000000..4bf69e4
--- /dev/null
+++ b/.config/nvim/lua/getchoo/lsp/config/lsp_config.lua
@@ -0,0 +1,42 @@
+local cmp = require("getchoo.lsp.config.cmp")
+local sources = require("getchoo.lsp.config.sources")
+
+local M = {}
+
+local on_attach = function(client, bufnr)
+  cmp.on_attach(client, bufnr)
+end
+
+local all_config = {
+  on_attach = on_attach,
+  capabilities = cmp.capabilities,
+}
+
+local servers = {}
+for _, server in ipairs(sources.lsp_servers) do
+  servers[server] = all_config
+end
+
+servers["sumneko_lua"] = {
+  on_attach = on_attach,
+  settings = {
+    Lua = {
+      runtime = {
+        version = "LuaJIT",
+      },
+      diagnostics = {
+        globals = { "vim" },
+      },
+      workspace = {
+        library = vim.api.nvim_get_runtime_file("", true),
+      },
+      telemetry = {
+        enable = false,
+      },
+    },
+  },
+}
+
+M.servers = servers
+
+return M
diff --git a/.config/nvim/lua/getchoo/lsp/config/mason.lua b/.config/nvim/lua/getchoo/lsp/config/mason.lua
new file mode 100644
index 0000000..de45c49
--- /dev/null
+++ b/.config/nvim/lua/getchoo/lsp/config/mason.lua
@@ -0,0 +1,14 @@
+-- config for mason tools
+local sources = require("getchoo.lsp.config.sources")
+
+local M = {}
+
+M.mason_tool_installer = {
+  ensure_installed = sources.mason,
+}
+
+M.mason_lsp = {
+  automatic_installation = true,
+}
+
+return M
diff --git a/.config/nvim/lua/getchoo/lsp/config/null_ls.lua b/.config/nvim/lua/getchoo/lsp/config/null_ls.lua
new file mode 100644
index 0000000..dd091a9
--- /dev/null
+++ b/.config/nvim/lua/getchoo/lsp/config/null_ls.lua
@@ -0,0 +1,38 @@
+local sources = require("getchoo.lsp.config.sources")
+
+local M = {}
+
+-- only use null-ls for formatting
+
+--- for neovim >= 8
+--- local lsp_formatting = function(bufnr)
+--- 	vim.lsp.buf.format({
+--- 		filter = function(client)
+--- 			return client.name == "null-ls"
+--- 		end,
+--- 		bufnr = bufnr,
+--- 	})
+--- end
+
+local augroup = vim.api.nvim_create_augroup("LspFormatting", {})
+local formatting_on_attach = function(client, bufnr)
+  if client.supports_method("textDocument/formatting") then
+    vim.api.nvim_clear_autocmds({ group = augroup, buffer = bufnr })
+    vim.api.nvim_create_autocmd("BufWritePre", {
+      group = augroup,
+      buffer = bufnr,
+      callback = function()
+        local params = require("vim.lsp.util").make_formatting_params({})
+        client.request("textDocument/formatting", params, nil, bufnr)
+        -- lsp_formatting(bufnr) -- neovim >= 8
+      end,
+    })
+  end
+end
+
+M.config = {
+  on_attach = formatting_on_attach,
+  sources = sources.null_ls,
+}
+
+return M
diff --git a/.config/nvim/lua/getchoo/lsp/config/sources.lua b/.config/nvim/lua/getchoo/lsp/config/sources.lua
new file mode 100644
index 0000000..7281508
--- /dev/null
+++ b/.config/nvim/lua/getchoo/lsp/config/sources.lua
@@ -0,0 +1,27 @@
+local null_ls = require("null-ls")
+local diagnostics = null_ls.builtins.diagnostics
+local formatting = null_ls.builtins.formatting
+
+local M = {
+  lsp_servers = { "rust_analyzer", "pyright", "bashls" },
+  null_ls = {
+    diagnostics.alex,
+    diagnostics.codespell,
+    diagnostics.flake8,
+    formatting.black,
+    formatting.codespell,
+    formatting.prettier,
+    formatting.rustfmt,
+    formatting.stylua,
+  },
+  mason = {
+    "alex",
+    "black",
+    "codespell",
+    "flake8",
+    "prettier",
+    "stylua",
+  },
+}
+
+return M