Zsh/Bash completion for cmp when writing in .sh files

[LamprosPitsillos]

Is there a way to get zsh/bash like completion in cmp?

Example:
head -<Tab>

--bytes    -c           -- print the first (or with -, all but the last) specified bytes       
--help                  -- display help and exit                                               
--lines    -n           -- print the first (or with -, all but the last) specified lines       
--silent   --quiet  -q  -- never print headers giving file names                               
--verbose  -v           -- always print headers giving file names                              
--version               -- output version information and exit    

[David-Else]

https://github.com/bash-lsp/bash-language-server works out of the box with bash scripts for me. Amazing tool. Here is my entire config in case it helps. I think you will only need { name = 'nvim_lsp' } and https://github.com/neovim/nvim-lspconfig/blob/master/doc/server_configurations.md#bashls:

local cmp = require 'cmp'
cmp.setup {
  formatting = {
    format = function(_, vim_item)
      vim_item.kind = (cmp_kinds[vim_item.kind] or '') .. vim_item.kind
      return vim_item
    end,
  },

  mapping = {
    ['<S-Tab>'] = cmp.mapping(cmp.mapping.select_prev_item(), { 'i', 'c' }),
    ['<Tab>'] = cmp.mapping(cmp.mapping.select_next_item(), { 'i', 'c' }),
    ['<C-b>'] = cmp.mapping(cmp.mapping.scroll_docs(-4), { 'i', 'c' }),
    ['<C-f>'] = cmp.mapping(cmp.mapping.scroll_docs(4), { 'i', 'c' }),
    ['<C-Space>'] = cmp.mapping(cmp.mapping.complete(), { 'i', 'c' }),
    ['<C-y>'] = cmp.config.disable,
    ['<C-e>'] = cmp.mapping {
      i = cmp.mapping.abort(),
      c = cmp.mapping.close(),
    },
    ['<CR>'] = cmp.mapping.confirm { select = true },
  },

  sources = {
    { name = 'nvim_lsp' },
    { name = 'nvim_lsp_signature_help' },
    { name = 'path' },
    { name = 'buffer', keyword_length = 4 },
  },
}

cmp.setup.cmdline('/', {
  sources = {
    { name = 'buffer', keyword_length = 4 },
  },
})

cmp.setup.cmdline(':', {
  sources = cmp.config.sources({
    { name = 'path' },
  }, {
    { name = 'cmdline' },
  }),
})

[LamprosPitsillos]

Thanks , but I was talking about the arguments that come after the command.
eg.
head -<Tab>

--bytes    -c           -- print the first (or with -, all but the last) specified bytes       
--help                  -- display help and exit                                               
--lines    -n           -- print the first (or with -, all but the last) specified lines       
--silent   --quiet  -q  -- never print headers giving file names                               
--verbose  -v           -- always print headers giving file names                              
--version               -- output version information and exit    

[David-Else]

Sorry for the confusion. It is certainly possible with the correct setup, details are here: bash-lsp/bash-language-server#294

[gegoune]

It is possible, can't remember what this feature was called, but you should be able to find it in their docs/old PRs.

[gegoune]

Found the PR: bash-lsp/bash-language-server#294

[David-Else]

I am trying to get it working now, but no luck so far. I think the problem is with my bash-completion install, I will report back.

[LamprosPitsillos]

I have managed it get it working , although it is missing some features i got used to by using ZSH ( A brief explanation of the argument and a much more advanced completion ).
The problem was i didnt have bash-completion installed on my Arch system, i never use bash ,and because its arch i never bothered installing it.

cmp.mp4

[LamprosPitsillos]

https://github.com/tamago324/cmp-zsh