檢測(cè)文件夾，拷貝有更新的文件到對(duì)應(yīng)目錄 2016.5.19

親測(cè)可用，若有借鑒請(qǐng)修改下文件路徑；

學(xué)習(xí)python小一個(gè)月后寫的這個(gè)功能，屬于初學(xué)，若有大神路過，求代碼優(yōu)化~

newcopy.py：

檢測(cè)文件夾中最后修改時(shí)間變化的文件，并拷貝復(fù)制到相應(yīng)路徑下，拷貝目錄會(huì)自動(dòng)檢測(cè)后輸出；測(cè)試文件夾路徑記得修改；

pyinotify.py：

借用window接口，檢測(cè)腳本所在目錄下文件夾變化（更新、刪除、添加等），輸出日志到桌面上；

# newcopy.py文件

# -*- coding:UTF-8 -*-

import os

import os.path

import sys

import time

import datetime

import stat

import difflib

import linecache, shutil

# 文件全路徑和對(duì)應(yīng)最后修改時(shí)間寫入到out.txt文檔中；

def add_log(path):

with open('out.txt','w') as f:

f.close()

for root , dirs, files in os.walk(path):

for name in files:

temp_path = os.path.join(root,name)

file_name = temp_path.replace('C:/Users/Enter/Desktop/', '')

file_time = os.stat(temp_path).st_mtime

with open('out.txt','a') as f:

f.write( ','.join( ['%s' % file_name , '%s\n' % file_time] ) )

f.close()

# 注意時(shí)間格式轉(zhuǎn)換

#file_time = time.localtime(os.stat(root).st_mtime)

#file_time=date.strftime('%Y-%m-%d %H:%M:%S')

def if_exist():

# 判斷文件out.txt是否存在,不存在則創(chuàng)建

filename = 'out.txt'

if os.path.exists(filename):

message = 'OK, the "%s" file exists.'

else:

message = "Sorry, I cannot find the '%s' file..and I create it."

a = open('out.txt', 'w')

a.close()

print message % filename

# 判斷update文件夾是否存在,不存在則創(chuàng)建

files_name='update'

if os.path.exists(files_name):

message = 'OK, the "%s" file exists.'

else:

message = "Sorry, I cannot find the '%s' file.and I create it. "

os.mkdir('update')

print message % files_name

# path 待比較的文件夾路徑

# 返回生成的txt（包含更新或者添加的文件路徑）的路徑

def log_compare(path):

# 先確保out.txt存在

if_exist()

# 獲取out.txt文件內(nèi)容（文件全路徑key和最后修改時(shí)間value），生成dict

txt = open('out.txt', 'r').readlines()

myDic = {}

for row in txt:

(key, value) = row.split(',')

myDic[key] = value

print myDic

# 創(chuàng)建以時(shí)間命名的文件和文件夾

setup_filename = str(datetime.datetime.now().strftime('%Y%m%d%H%M%S')) # 獲取當(dāng)前時(shí)間

setup_file_path = '%s%s.txt' %('C:/Users/Enter/Desktop/update/' ,setup_filename) # 生成以當(dāng)前時(shí)間命名的.txt文件，準(zhǔn)備寫入更新日志

setup_file_dir = '%s%s' %('C:/Users/Enter/Desktop/update/' ,setup_filename) # 生成以當(dāng)前時(shí)間命名的.txt文件夾

#判斷key，比較value值是否變化

#原始需要有一個(gè)out.txt文件，才能比較value確定是否有更新

#運(yùn)行程序時(shí)，重新遍歷一遍文件全路徑和最后修改時(shí)間

for root , dirs, files in os.walk(path):

for name in files:

temp_path = os.path.join(root,name)

file_name = temp_path.replace('C:/Users/Enter/Desktop/', '')

time = os.stat(temp_path).st_mtime # 獲取最后修改時(shí)間

file_time = '%s\n' % time # 加%s\n是為了與out.txt里值完全對(duì)應(yīng)

if myDic.has_key(file_name) == True:

if cmp(myDic[file_name], file_time): # myDic[file_name]舊最后修改時(shí)間，file_time新最后修改時(shí)間

print (file_name,file_time) # 輸出有變化的文件名及其對(duì)應(yīng)的最后修改時(shí)間

# 輸出以文件時(shí)間命名的更新日志，生成路徑是update下

with open(setup_file_path,'a') as f: # 有更新的文件，寫入更新日志

f.write( '%s\n' % file_name )

f.close()

else:

print "add",file_name

with open(setup_file_path,'a') as f: # 新增的文件，寫入更新日志

f.write( '%s\n' % file_name )

f.close()

# 返回 當(dāng)前時(shí)間，以時(shí)間命名的文件夾路徑，更新文件路徑

return (setup_filename, setup_file_dir, setup_file_path)

# 將src目錄中的內(nèi)容拷貝到dest目錄

# 如果dest或者其子目錄不存在，先創(chuàng)建

# txt_path為更新日志路徑，有更新的文件才拷貝

def copy_directory(src, dest, txt_path):

if not os.path.exists(txt_path):

print "no file update"

return

# 讀更新日志，獲取更新文件的全路徑

txt = open(txt_path, 'r').readlines()

myDic = {}

myDic2 = {}

for row in txt:

myDic[row] = "1"

tempArray = os.path.split(row)

key = tempArray[0]

myDic2[key] = "1"

print "myDic2:", myDic2

print "dict:", myDic

# 遍歷原始文件夾，得到所有文件的全路徑

for root, dirs, files in os.walk(src):

for name in files:

#print "dirs:",dirs

fpath = os.path.join(root, name)

newroot = root

newroot = newroot.replace(src, dest) # 根據(jù)文件絕對(duì)路徑，創(chuàng)建將要拷貝的路徑（相對(duì)路徑），沒有則創(chuàng)建

#print newroot

rel_dir = root.replace('C:/Users/Enter/Desktop/', '')

if not os.path.exists(newroot) and myDic2.has_key(rel_dir):

print "rel_dir:" , rel_dir

print newroot

os.makedirs(newroot)

os.chmod(newroot, stat.S_IWRITE)

temp = fpath

temp = temp.replace(src, dest)

rel_path = fpath.replace('C:/Users/Enter/Desktop/', '') # 將絕對(duì)路徑改為相對(duì)路徑，便于遍歷對(duì)比，挑出要拷貝的文件

rel_path += '\n'

if myDic.has_key(rel_path) == True:

print "real_path:" , rel_path

# os.mkdir(rel_path)

shutil.copy(fpath, temp)

print "copyfile:", fpath

def main():

path_dir = 'C:/Users/Enter/Desktop/acd'

path_file = 'C:/Users/Enter/Desktop/out.txt'

params = log_compare(path_dir)

add_log(path_dir)

copy_directory(path_dir, params[1], params[2])

if __name__ == '__main__':

main()

#pyinotify.py文件

# -*- coding:UTF-8 -*-

import os

import win32file

import win32con

# #檢測(cè)當(dāng)前目錄下所有文件刪除、更新、修改等變化。更新日志輸出到桌面。2016.5.23 copy

ACTIONS = {

1 : "Created",

2 : "Deleted",

3 : "Updated",

4 : "Renamed from something",

5 : "Renamed to something"

}

# Thanks to Claudio Grondi for the correct set of numbers

FILE_LIST_DIRECTORY = 0x0001

path_to_watch = "."

hDir = win32file.CreateFile (

path_to_watch,

FILE_LIST_DIRECTORY,

win32con.FILE_SHARE_READ | win32con.FILE_SHARE_WRITE,

None,

win32con.OPEN_EXISTING,

win32con.FILE_FLAG_BACKUP_SEMANTICS,

None

)

while 1:

#

# ReadDirectoryChangesW takes a previously-created

# handle to a directory, a buffer size for results,

# a flag to indicate whether to watch subtrees and

# a filter of what changes to notify.

#

# NB Tim Juchcinski reports that he needed to up

# the buffer size to be sure of picking up all

# events when a large number of files were

# deleted at once.

#

results = win32file.ReadDirectoryChangesW (

hDir,

1024,

True,

win32con.FILE_NOTIFY_CHANGE_FILE_NAME |

win32con.FILE_NOTIFY_CHANGE_DIR_NAME |

win32con.FILE_NOTIFY_CHANGE_ATTRIBUTES |

win32con.FILE_NOTIFY_CHANGE_SIZE |

win32con.FILE_NOTIFY_CHANGE_LAST_WRITE |

win32con.FILE_NOTIFY_CHANGE_SECURITY,

None,

None

)

#print "results:", results

for action, file in results:

full_filename = os.path.join (path_to_watch, file)

print full_filename, ACTIONS.get (action, "Unknown")

with open('C:/Users/Enter/Desktop/fileupdate.txt','a') as f:

#str = ','.join( ['%s' % full_filename , '%s\n' % ACTIONS.get (action, "Unknown")] )

#print str

f.write( ','.join( ['%s' % full_filename , '%s\n' % ACTIONS.get (action, "Unknown")] ) )

f.close()

以上這篇python檢測(cè)文件夾變化,并拷貝有更新的文件到對(duì)應(yīng)目錄的方法就是小編分享給大家的全部?jī)?nèi)容了，希望能給大家一個(gè)參考，也希望大家多多支持腳本之家。

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