Only enable `/` completion

[ewoij]

Hello,

I didn't manage to use the completion only for the search. Is it possible?

With the following config, the "default nvim completion" gets disabled after the first search.

Thanks,

---

Minimal config (nvim 0.7.0):

call plug#begin(stdpath('data') . '/plugged')
Plug 'neovim/nvim-lspconfig'
Plug 'hrsh7th/cmp-nvim-lsp'
Plug 'hrsh7th/cmp-buffer'
Plug 'hrsh7th/cmp-path'
Plug 'hrsh7th/cmp-cmdline'
Plug 'hrsh7th/nvim-cmp'

" For vsnip users.
Plug 'hrsh7th/cmp-vsnip'
Plug 'hrsh7th/vim-vsnip'

" For luasnip users.
" Plug 'L3MON4D3/LuaSnip'
" Plug 'saadparwaiz1/cmp_luasnip'

" For ultisnips users.
" Plug 'SirVer/ultisnips'
" Plug 'quangnguyen30192/cmp-nvim-ultisnips'

" For snippy users.
" Plug 'dcampos/nvim-snippy'
" Plug 'dcampos/cmp-snippy'

call plug#end()

set completeopt=menu,menuone,noselect

lua <<EOF
  -- Setup nvim-cmp.
  local cmp = require'cmp'

  cmp.setup({
    snippet = {
      -- REQUIRED - you must specify a snippet engine
      expand = function(args)
        vim.fn["vsnip#anonymous"](args.body) -- For `vsnip` users.
        -- require('luasnip').lsp_expand(args.body) -- For `luasnip` users.
        -- require('snippy').expand_snippet(args.body) -- For `snippy` users.
        -- vim.fn["UltiSnips#Anon"](args.body) -- For `ultisnips` users.
      end,
    },
    window = {
      -- completion = cmp.config.window.bordered(),
      -- documentation = cmp.config.window.bordered(),
    },
    mapping = cmp.mapping.preset.insert({
      ['<C-b>'] = cmp.mapping.scroll_docs(-4),
      ['<C-f>'] = cmp.mapping.scroll_docs(4),
      ['<C-Space>'] = cmp.mapping.complete(),
      ['<C-e>'] = cmp.mapping.abort(),
      ['<CR>'] = cmp.mapping.confirm({ select = true }), -- Accept currently selected item. Set `select` to `false` to only confirm explicitly selected items.
    }),
    sources = cmp.config.sources({
      { name = 'nvim_lsp' },
      { name = 'vsnip' }, -- For vsnip users.
      -- { name = 'luasnip' }, -- For luasnip users.
      -- { name = 'ultisnips' }, -- For ultisnips users.
      -- { name = 'snippy' }, -- For snippy users.
    }, {
      { name = 'buffer' },
    })
  })

  -- Set configuration for specific filetype.
  cmp.setup.filetype('gitcommit', {
    sources = cmp.config.sources({
      { name = 'cmp_git' }, -- You can specify the `cmp_git` source if you were installed it.
    }, {
      { name = 'buffer' },
    })
  })

  -- Use buffer source for `/` (if you enabled `native_menu`, this won't work anymore).
  cmp.setup.cmdline('/', {
    mapping = cmp.mapping.preset.cmdline(),
    sources = {
      { name = 'buffer' }
    }
  })
EOF

[cliffxuan]

I had exactly the same problem. Took me a while to figure out why my wildmenu for : is broken.

The reasons I don't want to cmp-cmdline for : are:

• I do not want to have fuzzy search for command
• expanding variable % to current file does not get rid of the preceding % itself

I'm guessing others are facing the same issue.

Would be really good if the author or someone else shares a solution.

[hrsh7th]

The vim's key-mapping is global. So I have no solution for this problem...

[jiaming-shi]

The vim's key-mapping is global. So I have no solution for this problem...

I have the same issue, cmp-cmdline will break vim-grepper.

vim-grepper creates custom cmdline mapping when it is activated, and restore original maping after exit. So maybe cmp-cmdline could do with the same way? https://github.com/mhinz/vim-grepper/blob/2b93535752ffcb312f9fab73d90e80dc9f2e60fc/plugin/grepper.vim#L764..L827

[osthomas]

I don't have a solution to this problem, but a workaround: run the setup for cmdline, but configure it with no sources and to send wildchar on <Tab> (or some other key). This effectively restores native cmdline completion and prevents ^I being inserted when Tab-completing after searching once.

-- `:` cmdline setup.
-- Use cmp.cmdline only for '/' search completion because it does not play nice
-- with:
-- - $ENV_VARS
-- - wildcard expansion (%:h:p, ...)
-- - */** notation
-- Skipping the setup entirely prevents cmdline completion from working after
-- searching once (insertion of '^I' when pressing Tab).
local function send_wildchar()
    local char = vim.fn.nr2char(vim.opt.wildchar:get())
    local key = vim.api.nvim_replace_termcodes(char, true, false, true)
    vim.api.nvim_feedkeys(key, "nt", true)
end
cmp.setup.cmdline(":", {
    mapping = {
        ["<Tab>"] = {c = send_wildchar}
    },
    sources = cmp.config.sources({})
})