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-- bundler. public domain.
-- https://citrons.xyz/git/cc-bundler.git

local cc_host = {}

function cc_host.error(msg)
	printError(msg)
end

function cc_host.list_dir(path)
	local list = fs.list(shell.resolve(path))
	local i = 0
	return function()
		i = i + 1
		return list[i]
	end
end

function cc_host.is_dir(path)
	return fs.isDir(shell.resolve(path))
end

function cc_host.read(path)
	local file = assert(fs.open(shell.resolve(path), "r"))
	local data = assert(file.readAll())
	file.close()
	return data
end

function cc_host.write(path, content)
	local file = assert(fs.open(shell.resolve(path), "w"))
	file.write(content)
	file.close()
end

local normal_host = {}

function normal_host.error(msg)
	io.stderr:write(tostring(msg).."\n")
	os.exit(-1)
end

function normal_host.list_dir(path)
	return require "lfs".dir(path)
end

function normal_host.is_dir(path)
	return require "lfs".attributes(path).mode == "directory"
end

function normal_host.read(path)
	local file = assert(io.open(path, "r"))
	local data = assert(file:read "a")
	file:close()
	return data
end

function normal_host.write(path, content)
	local file = assert(io.open(path, "w"))
	assert(file:write(content))
	file:close()
end

if _HOST and _HOST:match "ComputerCraft" then
	return cc_host
else
	return normal_host
end