feat: add an independent lvim namespace (#1699)

1 files changed, 165 insertions, 0 deletions

diff --git a/lua/lvim/lsp/init.lua b/lua/lvim/lsp/init.lua
new file mode 100644
index 00000000..c8d583a9
--- /dev/null
+++ b/lua/lvim/lsp/init.lua
@@ -0,0 +1,165 @@
+local M = {}
+local Log = require "lvim.core.log"
+local utils = require "lvim.utils"
+
+local function lsp_highlight_document(client)
+  if lvim.lsp.document_highlight == false then
+    return -- we don't need further
+  end
+  -- Set autocommands conditional on server_capabilities
+  if client.resolved_capabilities.document_highlight then
+    vim.api.nvim_exec(
+      [[
+      augroup lsp_document_highlight
+        autocmd! * <buffer>
+        autocmd CursorHold <buffer> lua vim.lsp.buf.document_highlight()
+        autocmd CursorMoved <buffer> lua vim.lsp.buf.clear_references()
+      augroup END
+    ]],
+      false
+    )
+  end
+end
+
+local function lsp_code_lens_refresh(client)
+  if lvim.lsp.code_lens_refresh == false then
+    return
+  end
+
+  if client.resolved_capabilities.code_lens then
+    vim.api.nvim_exec(
+      [[
+      augroup lsp_code_lens_refresh
+        autocmd! * <buffer>
+        autocmd InsertLeave <buffer> lua vim.lsp.codelens.refresh()
+        autocmd InsertLeave <buffer> lua vim.lsp.codelens.display()
+      augroup END
+    ]],
+      false
+    )
+  end
+end
+
+local function add_lsp_buffer_keybindings(bufnr)
+  local mappings = {
+    normal_mode = "n",
+    insert_mode = "i",
+    visual_mode = "v",
+  }
+
+  if lvim.builtin.which_key.active then
+    -- Remap using which_key
+    local status_ok, wk = pcall(require, "which-key")
+    if not status_ok then
+      return
+    end
+    for mode_name, mode_char in pairs(mappings) do
+      wk.register(lvim.lsp.buffer_mappings[mode_name], { mode = mode_char, buffer = bufnr })
+    end
+  else
+    -- Remap using nvim api
+    for mode_name, mode_char in pairs(mappings) do
+      for key, remap in pairs(lvim.lsp.buffer_mappings[mode_name]) do
+        vim.api.nvim_buf_set_keymap(bufnr, mode_char, key, remap[1], { noremap = true, silent = true })
+      end
+    end
+  end
+end
+
+function M.common_capabilities()
+  local capabilities = vim.lsp.protocol.make_client_capabilities()
+  capabilities.textDocument.completion.completionItem.snippetSupport = true
+  capabilities.textDocument.completion.completionItem.resolveSupport = {
+    properties = {
+      "documentation",
+      "detail",
+      "additionalTextEdits",
+    },
+  }
+
+  local status_ok, cmp_nvim_lsp = pcall(require, "cmp_nvim_lsp")
+  if status_ok then
+    capabilities = cmp_nvim_lsp.update_capabilities(capabilities)
+  end
+
+  return capabilities
+end
+
+local function select_default_formater(client)
+  local client_formatting = client.resolved_capabilities.document_formatting
+    or client.resolved_capabilities.document_range_formatting
+  if client.name == "null-ls" or not client_formatting then
+    return
+  end
+  Log:debug("Checking for formatter overriding for " .. client.name)
+  local client_filetypes = client.config.filetypes or {}
+  for _, filetype in ipairs(client_filetypes) do
+    if lvim.lang[filetype] and #vim.tbl_keys(lvim.lang[filetype].formatters) > 0 then
+      Log:debug("Formatter overriding detected. Disabling formatting capabilities for " .. client.name)
+      client.resolved_capabilities.document_formatting = false
+      client.resolved_capabilities.document_range_formatting = false
+    end
+  end
+end
+
+function M.common_on_init(client, bufnr)
+  if lvim.lsp.on_init_callback then
+    lvim.lsp.on_init_callback(client, bufnr)
+    Log:debug "Called lsp.on_init_callback"
+    return
+  end
+  select_default_formater(client)
+end
+
+function M.common_on_attach(client, bufnr)
+  if lvim.lsp.on_attach_callback then
+    lvim.lsp.on_attach_callback(client, bufnr)
+    Log:debug "Called lsp.on_attach_callback"
+  end
+  lsp_highlight_document(client)
+  lsp_code_lens_refresh(client)
+  add_lsp_buffer_keybindings(bufnr)
+end
+
+local function bootstrap_nlsp(opts)
+  opts = opts or {}
+  local lsp_settings_status_ok, lsp_settings = pcall(require, "nlspsettings")
+  if lsp_settings_status_ok then
+    lsp_settings.setup(opts)
+  end
+end
+
+function M.get_common_opts()
+  return {
+    on_attach = M.common_on_attach,
+    on_init = M.common_on_init,
+    capabilities = M.common_capabilities(),
+  }
+end
+
+function M.setup()
+  Log:debug "Setting up LSP support"
+
+  local lsp_status_ok, _ = pcall(require, "lspconfig")
+  if not lsp_status_ok then
+    return
+  end
+
+  for _, sign in ipairs(lvim.lsp.diagnostics.signs.values) do
+    vim.fn.sign_define(sign.name, { texthl = sign.name, text = sign.text, numhl = sign.name })
+  end
+
+  require("lvim.lsp.handlers").setup()
+
+  if not utils.is_directory(lvim.lsp.templates_dir) then
+    require("lvim.lsp.templates").generate_templates()
+  end
+
+  bootstrap_nlsp { config_home = utils.join_paths(get_config_dir(), "lsp-settings") }
+
+  require("lvim.lsp.null-ls").setup()
+
+  require("lvim.utils").toggle_autoformat()
+end
+
+return M