Nvim-cmp is adding multiple times the same sources

Question

I'm using nvim-cmpto have a contextual window to display my LSP suggestions and my snippets but when I open multiple buffers, I have an issue : the same source is added multiple times to nvim-cmp causing the same result to be repeated in the popup.

For example, here is the result of :CmpStatus: after a few minutes of work.

# ready source names
- vsnip
- buffer
- nvim_lsp:pylsp
- vsnip
- nvim_lsp:pylsp
- nvim_lsp:pylsp

Here is my nvim-cmpconfig :

cmp.setup({
    snippet = {
        expand = function(args)
            vim.fn["vsnip#anonymous"](args.body)
        end,
    },
    ...
    sources = {
        { name = 'vsnip' },
        { name = 'nvim_lua' },
        { name = 'nvim_lsp' },
        { name = 'buffer', keyword_length = 3 }
    },
}

Does anyone know how to adress this issue ? Is it a problem with my configuration ?

lcheylus · Accepted Answer · 2022-08-18 09:10:27Z

1

In your cmp configuration, you can use the dup keyword for vim_item with the formatting option / format function. See help for complete-item for explanations (:help complete-item).

cmp.setup({
  formatting = {
    format = function(entry, vim_item)
      vim_item.menu = ({
        nvim_lsp = '[LSP]',
        vsnip = '[Snippet]',
        nvim_lua = '[Nvim Lua]',
        buffer = '[Buffer]',
      })[entry.source.name]

      vim_item.dup = ({
        vsnip = 0,
        nvim_lsp = 0,
        nvim_lua = 0,
        buffer = 0,
      })[entry.source.name] or 0

      return vim_item
    end
  }
})

You can see details in this feature request for nvim-cmp plugin.

edited Aug 18, 2022 at 9:10

answered Aug 17, 2022 at 8:55

lcheylus

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1 Comment

Dorian B Over a year ago

Thanks for your answer but even after adding the dup config, I keep having the same source added multiple times when I open new buffers.

Tyler2P · Accepted Answer · 2022-11-13 22:18:15Z

1

I had the same problem and managed to solve the issue by realizing that cmp is somehow installed twice.

Try removing or better first renaming the cmp-packages in the plugged directory, for example

cmp-nvim-lsp to cmp-nvim-lsp_not

cml-nvim-buffer to cmp-nvim-buffer_not etc.

This did the job for me.

edited Nov 13, 2022 at 22:18

Tyler2P

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answered Nov 7, 2022 at 14:22

NoLimit

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