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99 lines (89 loc) · 2.42 KB
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Copy pathFile.lua
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99 lines (89 loc) · 2.42 KB
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--[[
Copyright 2017 YANG Huan ([email protected]).
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
--]]
local System = System
local define = System.define
local throw = System.throw
local each = System.each
local io = io
local open = io.open
local remove = os.remove
local IOException = define("System.IO.IOException", {
__tostring = System.Exception.ToString,
__inherits__ = { System.Exception },
__ctor__ = function(this, message, innerException)
System.Exception.__ctor__(this, message or "I/O error occurred.", innerException)
end,
})
local function openFile(path, mode)
local f, err = open(path, mode)
if f == nil then
throw(IOException(err))
end
return f
end
local function readAll(path, mode)
local f = openFile(path, mode)
local bytes = f:read("*all")
f:close()
return bytes
end
local function writeAll(path, contents, mode)
local f = openFile(path, mode)
f:write(contents)
f:close()
end
define("System.IO.File", {
ReadAllBytes = function (path)
return readAll(path, "rb")
end,
ReadAllText = function (path)
return readAll(path, "r")
end,
ReadAllLines = function (path)
local t = {}
local count = 1
for line in io.lines(path) do
t[count] = line
count = count + 1
end
return System.arrayFromTable(t, System.String)
end,
WriteWriteAllBytes = function (path, contents)
writeAll(path, contents, "wb")
end,
WriteAllText = function (path, contents)
writeAll(path, contents, "w")
end,
WriteAllLines = function (path, contents)
local f = openFile(path, "w")
for _, line in each(contents) do
if line == nil then
f:write("\n")
else
f:write(line, "\n")
end
end
f:close()
end,
Exists = function (path)
local file = io.open(path, "rb")
if file then file:close() end
return file ~= nil
end,
Delete = function (path)
local ok, err = remove(path)
if not ok then
throw(IOException(err))
end
end
})