feat(nvim)!: switch to built-in LSP

4 files changed, 134 insertions, 2 deletions

diff --git a/nvim/.config/nvim/init.vim b/nvim/.config/nvim/init.vim
index 55fb6d2..8ae7f26 100644
--- a/nvim/.config/nvim/init.vim
+++ b/nvim/.config/nvim/init.vim
@@ -63,6 +63,7 @@ nnoremap <leader>sv :source $MYVIMRC<CR>
 source ~/.config/nvim/startify.vim
 source ~/.config/nvim/defx.vim
 source ~/.config/nvim/vimwiki.vim
-source ~/.config/nvim/coc.vim
 source ~/.config/nvim/fzf.vim
 
+lua require('lsp-config')
+lua require('completion')
diff --git a/nvim/.config/nvim/lua/completion.lua b/nvim/.config/nvim/lua/completion.lua
new file mode 100644
index 0000000..3bca660
--- /dev/null
+++ b/nvim/.config/nvim/lua/completion.lua
@@ -0,0 +1,61 @@
+-- Compe setup
+require'compe'.setup {
+  enabled = true;
+  autocomplete = true;
+  debug = false;
+  min_length = 1;
+  preselect = 'enable';
+  throttle_time = 80;
+  source_timeout = 200;
+  incomplete_delay = 400;
+  max_abbr_width = 100;
+  max_kind_width = 100;
+  max_menu_width = 100;
+  documentation = true;
+
+  source = {
+    path = true;
+    nvim_lsp = true;
+  };
+}
+
+local t = function(str)
+  return vim.api.nvim_replace_termcodes(str, true, true, true)
+end
+
+local check_back_space = function()
+    local col = vim.fn.col('.') - 1
+    if col == 0 or vim.fn.getline('.'):sub(col, col):match('%s') then
+        return true
+    else
+        return false
+    end
+end
+
+-- Use (s-)tab to:
+--- move to prev/next item in completion menuone
+--- jump to prev/next snippet's placeholder
+_G.tab_complete = function()
+  if vim.fn.pumvisible() == 1 then
+    return t "<C-n>"
+  elseif check_back_space() then
+    return t "<Tab>"
+  else
+    return vim.fn['compe#complete']()
+  end
+end
+_G.s_tab_complete = function()
+  if vim.fn.pumvisible() == 1 then
+    return t "<C-p>"
+  else
+    return t "<S-Tab>"
+  end
+end
+
+vim.opt.completeopt = { "menuone", "noselect" }
+vim.api.nvim_set_keymap("i", "<Tab>", "v:lua.tab_complete()", {expr = true})
+vim.api.nvim_set_keymap("s", "<Tab>", "v:lua.tab_complete()", {expr = true})
+vim.api.nvim_set_keymap("i", "<S-Tab>", "v:lua.s_tab_complete()", {expr = true})
+vim.api.nvim_set_keymap("s", "<S-Tab>", "v:lua.s_tab_complete()", {expr = true})
+vim.api.nvim_set_keymap('i', '<c-space>', 'compe#complete()', { expr = true })
+vim.api.nvim_set_keymap('i', '<cr>', 'compe#confirm({ "keys": "\\<Plug>delimitMateCR", "mode": "" })', { expr = true })
diff --git a/nvim/.config/nvim/lua/lsp-config.lua b/nvim/.config/nvim/lua/lsp-config.lua
new file mode 100644
index 0000000..ac486dc
--- /dev/null
+++ b/nvim/.config/nvim/lua/lsp-config.lua
@@ -0,0 +1,68 @@
+local nvim_lsp = require('lspconfig')
+
+-- Use an on_attach function to only map the following keys
+-- after the language server attaches to the current buffer
+local on_attach = function(client, bufnr)
+  local function buf_set_keymap(...) vim.api.nvim_buf_set_keymap(bufnr, ...) end
+  local function buf_set_option(...) vim.api.nvim_buf_set_option(bufnr, ...) end
+
+  --Enable completion triggered by <c-x><c-o>
+  buf_set_option('omnifunc', 'v:lua.vim.lsp.omnifunc')
+
+  -- Mappings.
+  local opts = { noremap=true, silent=true }
+
+  -- See `:help vim.lsp.*` for documentation on any of the below functions
+  buf_set_keymap('n', 'gd', '<cmd>lua vim.lsp.buf.definition()<CR>', opts)
+  buf_set_keymap('n', 'gD', '<cmd>lua vim.lsp.buf.type_definition()<CR>', opts)
+  buf_set_keymap('n', 'gi', '<cmd>lua vim.lsp.buf.implementation()<CR>', opts)
+  buf_set_keymap('n', 'gr', '<cmd>lua vim.lsp.buf.references()<CR>', opts)
+  buf_set_keymap('n', 'K', '<cmd>lua vim.lsp.buf.hover()<CR>', opts)
+  buf_set_keymap('n', '<leader>rn', '<cmd>lua vim.lsp.buf.rename()<CR>', opts)
+  buf_set_keymap('n', '<leader>ca', '<cmd>lua vim.lsp.buf.code_action()<CR>', opts)
+  buf_set_keymap('n', '<leader>f', '<cmd>lua vim.lsp.buf.formatting()<CR>', opts)
+end
+
+local flags = {
+  debounce_text_changes = 150,
+}
+
+-- Typescript
+nvim_lsp.tsserver.setup {
+  on_attach = on_attach,
+  flags = flags,
+}
+
+-- Lua
+local runtime_path = vim.split(package.path, ';')
+table.insert(runtime_path, "lua/?.lua")
+table.insert(runtime_path, "lua/?/init.lua")
+
+nvim_lsp.sumneko_lua.setup {
+  on_attach = on_attach,
+  flags = flags,
+  cmd = { '/usr/bin/lua-language-server' }, -- Install from yay
+  settings = {
+    Lua = {
+      runtime = {
+        -- Tell the language server which version of Lua you're using (most likely LuaJIT in the case of Neovim)
+        version = 'LuaJIT',
+        -- Setup your lua path
+        path = runtime_path,
+      },
+      diagnostics = {
+        -- Get the language server to recognize the `vim` global
+        globals = {'vim'},
+      },
+      workspace = {
+        -- Make the server aware of Neovim runtime files
+        library = vim.api.nvim_get_runtime_file("", true),
+      },
+      -- Do not send telemetry data containing a randomized but unique identifier
+      telemetry = {
+        enable = false,
+      },
+    },
+  },
+}
+
diff --git a/nvim/.config/nvim/vim-plug/plugins.vim b/nvim/.config/nvim/vim-plug/plugins.vim
index c892b6a..e0c7b93 100644
--- a/nvim/.config/nvim/vim-plug/plugins.vim
+++ b/nvim/.config/nvim/vim-plug/plugins.vim
@@ -17,7 +17,6 @@ call plug#begin('~/.config/nvim/autoload/plugged')
     " Editorconfig
     Plug 'editorconfig/editorconfig-vim'
     " Languages
-    Plug 'neoclide/coc.nvim', {'branch': 'release'} "LSP
     Plug 'pangloss/vim-javascript'
     Plug 'leafgarland/typescript-vim' "typescript syntax
     Plug 'peitalin/vim-jsx-typescript' "react jsx typescript syntax
@@ -26,4 +25,7 @@ call plug#begin('~/.config/nvim/autoload/plugged')
     Plug 'airblade/vim-gitgutter'
      " Matching brackets
     Plug 'Raimondi/delimitMate'
+    " Built-in LSP
+    Plug 'neovim/nvim-lspconfig'
+    Plug 'hrsh7th/nvim-compe'
 call plug#end()