nvim: Switch to nvim-compe

nvim/.config/nvim/after/plugin/compe.vim

@@ -0,0 +1,12 @@
+function! s:check_back_space() abort
+  let col = col('.') - 1
+  return !col || getline('.')[col - 1] =~ '\s'
+endfunction
+
+inoremap <silent><expr> <TAB>
+  \ pumvisible() ? "\<C-n>" :
+  \ <SID>check_back_space() ? "\<TAB>" :
+  \ compe#complete()
+
+inoremap <silent><expr> <CR>  compe#confirm('<CR>')
+inoremap <silent><expr> <C-e> compe#close('<C-e>')

nvim/.config/nvim/init.lua

@@ -32,7 +32,7 @@ vim.o.inccommand     = 'split'
 vim.o.switchbuf      = 'useopen'
 vim.o.encoding       = 'utf-8'
 vim.o.mouse          = ''
-vim.o.completeopt    = 'menuone,noinsert,noselect'
+vim.o.completeopt    = 'menu,menuone,noselect'
 vim.o.backspace      = 'indent,eol,start'
 vim.o.wildmenu       = true
 vim.o.wildmode       = 'longest:full,full'

nvim/.config/nvim/lua/lsp.lua

@@ -1,5 +1,4 @@
 local nvim_lsp   = require('lspconfig')
-local completion = require('completion')
 local lsp_status = require('lsp-status')
 local lsp_fuzzy  = require('lspfuzzy')
 local protocol   = require('vim.lsp.protocol')
@@ -48,7 +47,6 @@ end
 
 local on_attach = function(client, bufnr)
   vim.api.nvim_buf_set_option(bufnr, 'omnifunc', 'v:lua.vim.lsp.omnifunc')
-  completion.on_attach(client, bufnr)
   lsp_status.on_attach(client, bufnr)
 
   if client.config.flags then

nvim/.config/nvim/lua/modules/completion.lua

@@ -1,43 +1,23 @@
-local remap = vim.api.nvim_set_keymap
+require'compe'.setup {
+  enabled              = true;
+  autocomplete         = true;
+  debug                = false;
+  min_length           = 3;
+  preselect            = 'enable';
+  throttle_time        = 80;
+  source_timeout       = 200;
+  incomplete_delay     = 400;
+  allow_prefix_unmatch = false;
 
-vim.g.completion_enable_auto_popup      = 0
-vim.g.completion_auto_change_source     = 1
-vim.g.completion_trigger_on_delete      = 1
-vim.g.completion_matching_ignore_case   = 0
-vim.g.completion_matching_strategy_list = { 'exact', 'substring' }
-
-vim.g.completion_chain_complete_list = {
-  c = {
-    { complete_items = { 'buffers', 'tmux' } },
-    { mode = { 'tags'  } },
-    { mode = { 'keyn'  } },
-    { mode = { '<c-p>' } },
-    { mode = { '<c-n>' } }
-  },
-  haskell = {
-    { complete_items = { 'buffers', 'lsp', 'tmux' } },
-    { mode = { 'keyn'  } },
-    { mode = { '<c-p>' } },
-    { mode = { '<c-n>' } }
-  },
-  rust = {
-    { complete_items = { 'buffers', 'lsp', 'tmux' } },
-    { mode = { 'keyn'  } },
-    { mode = { '<c-p>' } },
-    { mode = { '<c-n>' } }
-  },
-  default = {
-    { complete_items = { 'buffers', 'tmux' } },
-    { mode = { 'keyn'  } },
-    { mode = { '<c-p>' } },
-    { mode = { '<c-n>' } }
-  },
+  source = {
+    path          = true;
+    buffer        = true;
+    calc          = true;
+    nvim_lsp      = true;
+    nvim_lua      = true;
+    spell         = true;
+    tags          = true;
+    snippets_nvim = false;
+    vsnip         = false;
+  };
 }
-
-remap('i', '<Tab>',   'pumvisible() ? "<C-n>" : "<Tab>"',     { noremap = true, expr = true })
-remap('i', '<S-Tab>', 'pumvisible() ? "<C-p>" : "<S-Tab>"',   { noremap = true, expr = true })
-remap('i', '<Tab>', '<Plug>(completion_smart_tab)',   { noremap = false })
-remap('i', '<C-j>', '<Plug>(completion_next_source)', { noremap = false })
-remap('i', '<C-k>', '<Plug>(completion_prev_source)', { noremap = false })
-
-vim.api.nvim_command('autocmd BufEnter * lua require\'completion\'.on_attach()')

nvim/.config/nvim/lua/plugins.lua

@@ -33,11 +33,9 @@ local init = function ()
   }
   -- For autocompletion
   use {
-    'nvim-lua/completion-nvim',
+    'hrsh7th/nvim-compe',
     config = "require('modules.completion')"
   }
-  use 'steelsojka/completion-buffers'
-  use 'albertoCaroM/completion-tmux'
   -- For tmux
   use 'tmux-plugins/vim-tmux-focus-events'
   -- Git support