lualine.nvim/lua/lualine/async.lua

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local M = {}
function M:new(args)
args = args or {}
for index, arg in pairs(args) do
self[index] = arg
end
setmetatable(args, self)
self.__index = self
return args
end
local function close_pipe(pipe)
if pipe ~= nil and not pipe:is_closing() then
pipe:close()
end
end
function M.close_all()
close_pipe(M.stdin)
close_pipe(M.stderr)
close_pipe(M.stdout)
close_pipe(M.handle)
end
function M.init_options()
local options = {}
local args = vim.fn.split(M.cmd, ' ')
M.stdin = vim.loop.new_pipe(false)
M.stdout = vim.loop.new_pipe(false)
M.stderr = vim.loop.new_pipe(false)
options.command = table.remove(args, 1)
options.args = args
options.stdio = {
M.stdin,
M.stdout,
M.stderr
}
if M.cwd then
options.cwd = M.cwd
end
if M.env then
options.env = M.env
end
if M.detach then
options.detach = M.detach
end
return options
end
function M.start()
local options = M.init_options()
M.handle = vim.loop.spawn(options.command, options, vim.schedule_wrap(M.stop))
if M.on_stdout then
M.stdout:read_start(vim.schedule_wrap(M.on_stdout))
end
if M.on_stderr then
M.stderr:read_start(vim.schedule_wrap(M.on_stderr))
end
end
function M.stop(code, signal)
if M.on_exit then
M.on_exit(code, signal)
end
if M.on_stdout and M.stdout then
M.stdout:read_stop()
end
if M.on_stderr and M.stderr then
M.stderr:read_stop()
end
M.close_all()
end
return M