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local M = {}
M.fileTitle = function(file)
file = vim.fn.fnamemodify(file, ':p:~')
local tail = vim.fn.fnamemodify(file, ':t')
if not tail then
return vim.fn.fnamemodify(file, ':p:~:h') .. '/' -- e.g. ~/dir/
elseif tail == 'init.lua'
or tail == '__init__.py' then
return vim.fn.fnamemodify(vim.fn.fnamemodify(file, ':h'), ':t') .. '/' .. tail -- e.g. luatab/init.lua
else
return tail
end
end
M.title = function(bufnr)
local file = vim.fn.bufname(bufnr)
local buftype = vim.fn.getbufvar(bufnr, '&buftype')
local filetype = vim.fn.getbufvar(bufnr, '&filetype')
if buftype == 'help' then
return 'help:' .. vim.fn.fnamemodify(file, ':t:r')
elseif buftype == 'quickfix' then
return 'quickfix'
elseif filetype == 'TelescopePrompt' then
return 'Telescope'
elseif filetype == 'git' then
return 'Git'
elseif filetype == 'fugitive' then
return 'Fugitive'
elseif filetype == 'NvimTree' then
return 'NvimTree'
elseif filetype == 'oil' then
return 'Oil'
elseif file:sub(file:len()-2, file:len()) == 'FZF' then
return 'FZF'
elseif buftype == 'terminal' then
local _, mtch = string.match(file, "term:(.*):(%a+)")
return mtch ~= nil and mtch or vim.fn.fnamemodify(vim.env.SHELL, ':t')
elseif file == '' then
return '[No Name]'
else
return M.fileTitle(vim.fn.simplify(file))
end
end
M.modified = function(bufnr)
return vim.fn.getbufvar(bufnr, '&modified') == 1 and '+' or ''
end
M.windowCount = function(index, hl)
local nwins = vim.fn.tabpagewinnr(index, '$')
return nwins > 1 and '%#TabLineSel#' .. nwins .. hl or ''
end
M.separator = function(index)
return (index < vim.fn.tabpagenr('$') and '%#TabLine#|' or '')
end
M.cell = function(index)
local isSelected = vim.fn.tabpagenr() == index
local buflist = vim.fn.tabpagebuflist(index)
local winnr = vim.fn.tabpagewinnr(index)
local bufnr = buflist[winnr]
local hl = (isSelected and '%#TabLineSel#' or '%#TabLine#')
local prefix = M.windowCount(index, hl) .. M.modified(bufnr) .. ' '
return hl .. '%' .. index .. 'T' .. ' ' ..
(prefix == ' ' and '' or prefix) ..
M.title(bufnr) .. ' ' ..
M.separator(index)
end
M.tabline = function()
local line = ''
for i = 1, vim.fn.tabpagenr('$'), 1 do
line = line .. M.cell(i)
end
line = line .. '%#TabLineFill#%='
if vim.fn.tabpagenr('$') > 1 then
line = line .. '%#TabLine#%999XX'
end
return line
end
local setup = function(opts)
if opts then
for key, value in pairs(opts) do
M[key] = value
end
end
vim.opt.tabline = '%!v:lua.require\'luatab\'.helpers.tabline()'
end
return {
helpers = M,
setup = setup,
}
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