From ca6da1729156f74bb36ba94a864ab5e39e78ae3b Mon Sep 17 00:00:00 2001
From: Guangxiong Lin <hi@gxlin.org>
Date: Sat, 4 Jun 2022 16:53:35 +0800
Subject: Try using nvim

---
 .vim/after/plugin/cmp.vim        | 61 ++++++++++++++++++++++++++++++++++++++++
 .vim/after/plugin/lsp.vim        |  6 ++++
 .vim/after/plugin/minpac.vim     | 15 ++++++++--
 .vim/after/plugin/mucomplete.vim |  4 +++
 .vim/after/plugin/nvim-lsp.vim   | 59 ++++++++++++++++++++++++++++++++++++++
 .vim/after/plugin/treesitter.vim | 20 +++++++++++++
 .vimrc                           | 25 ++++++++++++----
 7 files changed, 183 insertions(+), 7 deletions(-)
 create mode 100644 .vim/after/plugin/cmp.vim
 create mode 100644 .vim/after/plugin/nvim-lsp.vim
 create mode 100644 .vim/after/plugin/treesitter.vim

diff --git a/.vim/after/plugin/cmp.vim b/.vim/after/plugin/cmp.vim
new file mode 100644
index 0000000..226f8c5
--- /dev/null
+++ b/.vim/after/plugin/cmp.vim
@@ -0,0 +1,61 @@
+if !has('nvim')
+    finish
+endif
+
+inoremap <silent><expr> <TAB> pumvisible() ? "\<C-n>" : "\<TAB>"
+inoremap <expr><S-TAB> pumvisible() ? "\<C-p>" : "\<C-h>"
+
+packadd nvim-cmp
+packadd cmp-buffer
+packadd cmp-path
+packadd cmp-cmdline
+
+lua <<EOF
+
+local cmp = require 'cmp'
+
+cmp.setup({
+    preselect = cmp.PreselectMode.None,
+
+    sources = cmp.config.sources({
+        { name = 'nvim_lsp' },
+    }, {
+        { name = 'buffer' },
+    }),
+
+    mapping = cmp.mapping.preset.insert({
+        ['<Tab>'] = cmp.mapping(function(fallback)
+            if cmp.visible() then
+                cmp.select_next_item()
+            else
+                fallback()
+            end
+        end, { 'i', 's' }),
+
+        ['<S-Tab>'] = cmp.mapping(function(fallback)
+            if cmp.visible() then
+                cmp.select_prev_item()
+            else
+                fallback()
+            end
+        end, { 'i', 's' }),
+    }),
+})
+
+cmp.setup.cmdline('/', {
+    mapping = cmp.mapping.preset.cmdline(),
+    sources = cmp.config.sources({
+        { name = 'buffer' },
+    }),
+})
+
+cmp.setup.cmdline(':', {
+    mapping = cmp.mapping.preset.cmdline(),
+    sources = cmp.config.sources({
+        { name = 'path' },
+    }, {
+        { name = 'cmdline' },
+    }),
+})
+
+EOF
diff --git a/.vim/after/plugin/lsp.vim b/.vim/after/plugin/lsp.vim
index fe36f12..07ca6aa 100644
--- a/.vim/after/plugin/lsp.vim
+++ b/.vim/after/plugin/lsp.vim
@@ -1,6 +1,12 @@
+if has('nvim')
+    finish
+endif
+
 let g:lsp_diagnostics_enabled = 0
 let g:lsp_document_code_action_signs_enabled = 0
 
+packadd vim-lsp
+
 if executable('pylsp')
     au User lsp_setup call lsp#register_server({
         \ 'name': 'pylsp',
diff --git a/.vim/after/plugin/minpac.vim b/.vim/after/plugin/minpac.vim
index 688c132..baaac09 100644
--- a/.vim/after/plugin/minpac.vim
+++ b/.vim/after/plugin/minpac.vim
@@ -19,12 +19,23 @@ function! InitMinpac() abort
   call minpac#add('https://github.com/dense-analysis/ale.git', {'type': 'opt'})
   call minpac#add('https://github.com/SirVer/ultisnips.git', {'type': 'opt'})
   call minpac#add('https://github.com/honza/vim-snippets')
-  call minpac#add('https://github.com/prabirshrestha/vim-lsp')
+  call minpac#add('https://github.com/prabirshrestha/vim-lsp', {'type': 'opt'})
   call minpac#add('https://github.com/ctrlpvim/ctrlp.vim.git', {'type': 'opt'})
   call minpac#add('https://github.com/FelikZ/ctrlp-py-matcher.git', {'type': 'opt'})
   call minpac#add('https://github.com/preservim/tagbar.git')
 
-  call minpac#add('https://github.com/ludovicchabant/vim-gutentags.git')
+  call minpac#add('https://github.com/neovim/nvim-lspconfig', {'type': 'opt'})
+  call minpac#add('https://github.com/hrsh7th/nvim-cmp', {'type': 'opt'})
+  call minpac#add('https://github.com/hrsh7th/cmp-buffer', {'type': 'opt'})
+  call minpac#add('https://github.com/hrsh7th/cmp-path', {'type': 'opt'})
+  call minpac#add('https://github.com/hrsh7th/cmp-nvim-lsp', {'type': 'opt'})
+  call minpac#add('https://github.com/hrsh7th/cmp-cmdline', {'type': 'opt'})
+  call minpac#add('https://github.com/nvim-treesitter/nvim-treesitter', {
+        \ 'type': 'opt',
+        \ 'do': 'if has("nvim") | packadd nvim-treesitter | :TSUpdate | endif',
+        \ })
+
+  call minpac#add('https://github.com/ludovicchabant/vim-gutentags.git', {'type': 'opt'})
   call minpac#add('https://github.com/easymotion/vim-easymotion.git')
   call minpac#add('https://github.com/airblade/vim-rooter.git')
   call minpac#add('https://github.com/mbbill/undotree.git')
diff --git a/.vim/after/plugin/mucomplete.vim b/.vim/after/plugin/mucomplete.vim
index 2e5892e..81751ba 100644
--- a/.vim/after/plugin/mucomplete.vim
+++ b/.vim/after/plugin/mucomplete.vim
@@ -1,3 +1,7 @@
+if has('nvim')
+  finish
+endif
+
 let g:mucomplete#enable_auto_at_startup = 1
 let g:mucomplete#minimum_prefix_length = 1
 let g:mucomplete#empty_text_auto = 1
diff --git a/.vim/after/plugin/nvim-lsp.vim b/.vim/after/plugin/nvim-lsp.vim
new file mode 100644
index 0000000..f6d23c3
--- /dev/null
+++ b/.vim/after/plugin/nvim-lsp.vim
@@ -0,0 +1,59 @@
+if !has('nvim')
+  finish
+endif
+
+packadd nvim-lspconfig
+packadd cmp-nvim-lsp
+
+lua <<EOF
+
+local lspconfig = require 'lspconfig'
+local cmp_nvim_lsp = require 'cmp_nvim_lsp'
+
+local capabilities = vim.lsp.protocol.make_client_capabilities()
+capabilities = cmp_nvim_lsp.update_capabilities(capabilities)
+
+local opts = { noremap = true, silent = true }
+
+vim.keymap.set('n', '[g', vim.diagnostic.goto_prev, opts)
+vim.keymap.set('n', ']g', vim.diagnostic.goto_next, opts)
+
+local on_attach = function(client, bufnr)
+  vim.api.nvim_buf_set_option(bufnr, 'omnifunc', 'v:lua.vim.lsp.omnifunc')
+  vim.api.nvim_buf_set_option(bufnr, 'tagfunc', 'v:lua.vim.lsp.tagfunc')
+
+  -- Mappings.
+  -- See `:help vim.lsp.*` for documentation on any of the below functions
+  local bufopts = { noremap=true, silent=true, buffer=bufnr }
+  vim.keymap.set('n', 'gD', vim.lsp.buf.declaration, bufopts)
+  vim.keymap.set('n', 'gd', vim.lsp.buf.definition, bufopts)
+  vim.keymap.set('n', 'K', vim.lsp.buf.hover, bufopts)
+  vim.keymap.set('n', 'gi', vim.lsp.buf.implementation, bufopts)
+  vim.keymap.set('n', '<C-k>', vim.lsp.buf.signature_help, bufopts)
+  -- vim.keymap.set('n', '<space>wa', vim.lsp.buf.add_workspace_folder, bufopts)
+  -- vim.keymap.set('n', '<space>wr', vim.lsp.buf.remove_workspace_folder, bufopts)
+  -- vim.keymap.set('n', '<space>wl', function()
+  --   print(vim.inspect(vim.lsp.buf.list_workspace_folders()))
+  -- end, bufopts)
+  vim.keymap.set('n', 'gy', vim.lsp.buf.type_definition, bufopts)
+  vim.keymap.set('n', '<leader>rn', vim.lsp.buf.rename, bufopts)
+  -- vim.keymap.set('n', '<space>ca', vim.lsp.buf.code_action, bufopts)
+  vim.keymap.set('n', 'gr', vim.lsp.buf.references, bufopts)
+  -- vim.keymap.set('n', '<space>f', vim.lsp.buf.formatting, bufopts)
+
+  vim.cmd [[
+    autocmd! BufWritePre *.go,*.rs lua vim.lsp.buf.formatting_sync(nil, 1000)
+  ]]
+
+end
+
+local servers = { 'clangd', 'gopls' , 'gdscript', 'pylsp' }
+
+for _, lsp in pairs(servers) do
+  lspconfig[lsp].setup{
+    on_attach = on_attach,
+    capabilities = capabilities,
+  }
+end
+
+EOF
diff --git a/.vim/after/plugin/treesitter.vim b/.vim/after/plugin/treesitter.vim
new file mode 100644
index 0000000..c022662
--- /dev/null
+++ b/.vim/after/plugin/treesitter.vim
@@ -0,0 +1,20 @@
+if !has('nvim')
+    finish
+endif
+
+packadd nvim-treesitter
+
+lua <<EOF
+
+local treesitter_config = require 'nvim-treesitter.configs'
+
+treesitter_config.setup {
+    ensure_installed = { 'c', 'lua', 'gdscript', 'go', 'python' },
+    sync_install = false,
+
+    highlight = {
+        enable = true,
+    },
+}
+
+EOF
diff --git a/.vimrc b/.vimrc
index 978e919..4f25b5d 100644
--- a/.vimrc
+++ b/.vimrc
@@ -28,6 +28,13 @@ if has('python3')
 elseif has('python')
 endif
 
+if has('nvim')
+    set packpath^=~/.vim
+    set packpath+=~/.vim/after
+    set runtimepath^=~/.vim
+    set runtimepath+=~/.vim/after
+endif
+
 " GUI
 
 set guioptions-=m
@@ -43,8 +50,11 @@ set nofoldenable
 
 set hidden
 
-set completeopt=menu,menuone,popup,noinsert,noselect
-set completepopup=align:menu,border:off,highlight:WildMenu
+set completeopt=menu,menuone,noinsert,noselect
+if !has('nvim')
+    set completeopt+=popup
+    set completepopup=align:menu,border:off,highlight:WildMenu
+endif
 set shortmess+=c
 set belloff+=ctrlg
 
@@ -52,10 +62,15 @@ set belloff+=ctrlg
 set diffopt+=followwrap,algorithm:patience
 
 " undo
-if !isdirectory(expand('~/.vim/.undo'))
-    silent! call mkdir(expand('~/.vim/.undo', 'p'))
+let s:undodir = expand('~/.vim/.undo')
+if has('nvim')
+    " The undo file of vim and nvim is not compatible
+    let s:undodir = expand('~/.vim/.undo/nvim')
+endif
+if !isdirectory(expand(s:undodir))
+    silent! call mkdir(expand(s:undodir, 'p'))
 endif
-set undodir=~/.vim/.undo//
+let &undodir=s:undodir
 set undofile
 
 " set Vim-specific sequences for RGB colors
-- 
cgit v1.2.3