Lua比较特定目录下特定文件的MD5值

require"lfs"

require"md5"

function findindir (path, wefind, r_table, intofolder)

for file in lfs.dir(path) do

if file ~= "." and file ~= ".." then

local f = path.."\\"..file

--print ("\t "..f)

if string.find(f, wefind) ~= nil then

print("\t "..f)

table.insert(r_table, f)

end

local attr = lfs.attributes(f)

assert (type(attr) == "table")

if attr.mode == "directory" and intofolder then

findindir (f, wefind, r_table, intofolder)

else

for name, value in pairs(attr) do

print (name, value)

end

end

end

end

end

--比较两个文件的MD5--

function checkMD5(directory_new,directory_old)

local file_new = io.open(directory_new,"rb")

local file_old = io.open(directory_old,"rb")

local string_new = file_new:read("*a")

local string_old = file_old:read("*a")

if string_new ~= string_old then

print("please update your file")

print("The direffence between " ..directory_new.. " and " .. directory_old)

end

file_new:close()

file_old:close()

end

local currentFolder_new = [[D:\Luatest]]

local input_table_new = {}

local currentFolder_old = [[E:\Luatest]]

local input_table_old = {}

findindir(currentFolder_new, "%.txt", input_table_new, true)

findindir(currentFolder_old, "%.txt", input_table_old, true)

--for key, value in pairs(input_table_new) do

for i = 1, #(input_table_new) do

checkMD5(input_table_new[i],input_table_old[i])

i = i+1

end