Python同步文件
最近在做Python开发，研究了技术大牛写的脚本，在他的脚本上做了优化。优化脚本已在做过测试还是挺好用的，如果你觉得不错就直接拿到生产用吧。
先直接放代码出来：
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import re,shutil,os,sys,filecmp
diffFilesList = []
def commpare(dir1,dir2):
cmpobs=filecmp.dircmp(dir1,dir2)
dir1_only=cmpobs.left_only
dir1_diff=cmpobs.diff_files
[diffFilesList.append(os.path.join(os.path.abspath(dir1),a)) for a in dir1_diff]
[diffFilesList.append(os.path.join(os.path.abspath(dir1),a)) for a in dir1_only]
if len(cmpobs.common_dirs) > 0:
for a in cmpobs.common_dirs:
commpare(os.path.abspath(os.path.join(dir1,a)),os.path.abspath(os.path.join(dir2,a)))
return diffFilesList
def main():
if len(sys.argv) < 3:
print "Plese use %s sourcedir backdir" % sys.argv[0]
sys.exit()
else:
dir1=os.path.abspath(sys.argv[1])
dir2=os.path.abspath(sys.argv[2])
ifMakeDir = True
while ifMakeDir:
diffFilesList = []
destinationFiles = []
ifMakeDir=False
sourceFiles=commpare(dir1,dir2)
for a in sourceFiles:
destinationFile=re.sub(dir1,dir2,a)
destinationFiles.append(destinationFile)
if os.path.isdir(a):
if not os.path.exists(destinationFile):
os.makedirs(destinationFile)
print "Make dir %s" % destinationFile
ifMakeDir=True
destinationFiles = []
sourceFiles=[]
sourceFiles=commpare(dir1,dir2)
[ destinationFiles.append(re.sub(dir1,dir2,a)) for a in sourceFiles]
for a,b in zip(sourceFiles,destinationFiles):
if os.path.isfile(a):
print "Copy file %s to %s" % (a,b)
shutil.copyfile(a,b)
#print sourceFiles,destinationFiles
if __name__ == '__main__':
main()
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直接看效果：
[root@localhost tmp]# pwd
/tmp
[root@localhost tmp]# tree testsyncfile/
testsyncfile/
├── destinationfiles
└── sourcefiles
├── file
└── test1
├── file1
└── test2
├── file2
└── test3
5 directories, 3 files
[root@localhost tmp]# python syncfile.py /tmp/testsyncfile/sourcefiles testsyncfile/destinationfiles/
Make dir /tmp/testsyncfile/destinationfiles/test1
Make dir /tmp/testsyncfile/destinationfiles/test1/test2
Make dir /tmp/testsyncfile/destinationfiles/test1/test2/test3
Copy file /tmp/testsyncfile/sourcefiles/file to /tmp/testsyncfile/destinationfiles/file
Copy file /tmp/testsyncfile/sourcefiles/file to /tmp/testsyncfile/destinationfiles/file
Copy file /tmp/testsyncfile/sourcefiles/test1/file1 to /tmp/testsyncfile/destinationfiles/test1/file1
Copy file /tmp/testsyncfile/sourcefiles/file to /tmp/testsyncfile/destinationfiles/file
Copy file /tmp/testsyncfile/sourcefiles/test1/file1 to /tmp/testsyncfile/destinationfiles/test1/file1
Copy file /tmp/testsyncfile/sourcefiles/test1/test2/file2 to /tmp/testsyncfile/destinationfiles/test1/test2/file2
Copy file /tmp/testsyncfile/sourcefiles/file to /tmp/testsyncfile/destinationfiles/file
Copy file /tmp/testsyncfile/sourcefiles/test1/file1 to /tmp/testsyncfile/destinationfiles/test1/file1
Copy file /tmp/testsyncfile/sourcefiles/test1/test2/file2 to /tmp/testsyncfile/destinationfiles/test1/test2/file2
Copy file /tmp/testsyncfile/sourcefiles/file to /tmp/testsyncfile/destinationfiles/file
Copy file /tmp/testsyncfile/sourcefiles/test1/file1 to /tmp/testsyncfile/destinationfiles/test1/file1
Copy file /tmp/testsyncfile/sourcefiles/test1/test2/file2 to /tmp/testsyncfile/destinationfiles/test1/test2/file2
[root@localhost tmp]# tree testsyncfile/
testsyncfile/
├── destinationfiles
│ ├── file
│ └── test1
│ ├── file1
│ └── test2
│ ├── file2
│ └── test3
└── sourcefiles
├── file
└── test1
├── file1
└── test2
├── file2
└── test3
8 directories, 6 files
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简单说明下脚本：
简单说明下脚本，脚本对源数据与目的数据做对比，有差异的文件做替换和新增，对目录做新增。但对于目的数据多余的目录和文件，脚本不错处理。希望使用脚本的人能根据自己的场景灵活运用。
对于这篇文章大家有疑问或者建议欢迎留言。