.dotfiles/configs/nvim/lua/utils/theme-reloader.lua
2022-09-02 16:15:54 +02:00

41 lines
952 B
Lua

-- see if the file exists
local function file_exists(file)
local f = io.open(file, "rb")
if f then
f:close()
end
return f ~= nil
end
-- get all lines from a file, returns an empty
-- list/table if the file does not exist
local function line_from(file)
if not file_exists(file) then
return ""
end
local f = io.open(file) -- 'r' is unnecessary because it's a default value.
if f == nil then
return ""
end
local line = f:read() -- '*l' is unnecessary because it's a default value.
f:close()
return line
end
local filePath = os.getenv("HOME") .. "/.cache/dark-mode"
local function updateTheme()
local line = line_from(filePath)
if line then
local light = string.find(line, "light")
if light then
-- vim.cmd("colorscheme dayfox")
else
-- vim.cmd("colorscheme nightfox")
end
end
end
updateTheme()
local w = vim.loop.new_fs_event()
w:start(filePath, {}, vim.schedule_wrap(updateTheme))