1local fn = vim.fn
 2local cmd = vim.cmd
 3local M = {}
 4
 5local function normalize_path(path)
 6  return vim.fn.fnamemodify(vim.fn.expand(path), ':p:~:.')
 7end
 8
 9function M.fzy_buffers(exclude)
10  local buffers = {}
11
12  -- list of buffers
13  local nbuf = fn.range(1, fn.bufnr('$'))
14
15  -- filter out buffers that don't have 'buflisted' set
16  for _, n in ipairs(nbuf) do
17    if fn.buflisted(n) then
18      buffers[fn.bufname(n)] = n
19    end
20  end
21
22  -- write buffer names to file to feed to fzy
23  local buffile = fn.tempname()
24  local f = io.open(buffile, "a")
25  for b, _ in pairs(buffers) do
26    local path = normalize_path(b)
27    if not string.match(path, exclude) then
28      f:write(path, '\n')
29    end
30  end
31  f:close()
32
33  local fzy_cmd = {
34    'fzy -p "buf > " ',
35    '< ' .. buffile,
36  }
37
38  require('fzy/fzy').fzy_search(table.concat(fzy_cmd), function(stdout)
39    -- strip '\n'
40    local selected, _ = stdout:gsub('\n', '')
41    cmd('bd!')
42
43    cmd('buffer ' .. buffers[ selected ])
44    -- housekeeping
45    os.remove(buffile)
46  end
47  )
48
49end
50
51return M