lualine.nvim/lua/lualine/components/filename.lua

66 lines
1.7 KiB
Lua
Raw Normal View History

-- Copyright (c) 2020-2021 shadmansaleh
-- MIT license, see LICENSE for more details.
local M = require('lualine.component'):extend()
local default_options = {
symbols = { modified = '[+]', readonly = '[-]' },
file_status = true,
path = 0,
shorting_target = 40,
}
local function count(base, pattern)
return select(2, string.gsub(base, pattern, ''))
end
local function shorten_path(path, sep)
-- ('([^/])[^/]+%/', '%1/', 1)
return path:gsub(string.format('([^%s])[^%s]+%%%s', sep, sep, sep), '%1' .. sep, 1)
end
M.init = function(self, options)
M.super.init(self, options)
self.options = vim.tbl_deep_extend('keep', self.options or {}, default_options)
end
M.update_status = function(self)
local data
if self.options.path == 1 then
-- relative path
data = vim.fn.expand '%:~:.'
elseif self.options.path == 2 then
-- absolute path
data = vim.fn.expand '%:p'
else
-- just filename
data = vim.fn.expand '%:t'
end
if data == '' then
data = '[No Name]'
end
if self.options.shorting_target ~= 0 then
local windwidth = vim.fn.winwidth(0)
local estimated_space_available = windwidth - self.options.shorting_target
local path_separator = package.config:sub(1, 1)
for _ = 0, count(data, path_separator) do
if windwidth <= 84 or #data > estimated_space_available then
data = shorten_path(data, path_separator)
end
end
end
if self.options.file_status then
if vim.bo.modified then
data = data .. self.options.symbols.modified
elseif vim.bo.modifiable == false or vim.bo.readonly == true then
data = data .. self.options.symbols.readonly
end
end
return data
2020-12-30 14:48:51 +00:00
end
return M