Add option to open buffers in the insert mode

[DUOLabs333]

Is your feature request related to a problem? Please describe.
Right now, if you open a buffer using Telescope buffers, you will always enter the buffer in normal mode. However, I usually work in insert mode, so it's an extra keystroke to enter insert mode after jumping to a buffer.

Describe the solution you'd like
An option to set the mode of the buffer that you open using Telescope buffers.

Describe alternatives you've considered

Additional context

[jamestrew]

You can modify the existing select action to add a post action like so:

local action_set = require("telescope.actions.set")

require("telescope.builtin").buffers({
  attach_mappings = function()
    action_set.select:enhance({
      post = function()
        vim.schedule(function()
          vim.cmd([[startinsert]])
        end)
      end,
    })
    return true
  end,
})

I can answer any follow ups but I'll close the issue otherwise.

[DUOLabs333]

How would you add this to a config? I tried pasting it in, but it starts Neovim with the buffers window open.

[jamestrew]

That would depend on your config and things like package manager.
But in general that code you would do something like using that function as part of a keybinding.

Alternatively, you can put this in your telescope setup config

require("telescope").setup({
  defaults = {
    -- ...,
  },
  pickers = {
    buffers = {
      attach_mappings = function()
        require("telescope.actions.set").select:enhance({
          post = function()
            vim.schedule(function()
              vim.cmd([[startinsert]])
            end)
          end,
        })
        return true
      end,
    },
  },
})

[DUOLabs333]

This works. Thanks!