包体积优化-Python查找项目中重复图片

评论

随着App版本的更新迭代，项目中的图片也逐渐增加，除了去除无用的图片资源，对于项目中重复的图片资源也可进行统一的整理，可通过比较图片的哈希值，筛选出重复的图片列表。

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#coding:utf-8
import glob, os
import hashlib

# rootPath = '/Users/jinying.zhou.o/Desktop/TestIconOC'
#rootPath = '/Users/jinying.zhou.o/Documents/NIO/FDAppKit'
rootPath = '/Users/jinying.zhou.o/Documents/NIO/NIO/NextevCar'

def get_FileSize(filePath):
	fsize = os.path.getsize(filePath)
	fsize = fsize/float(1024)
	return round(fsize,2)	

#记录所有的图片列表
filesList = []
#记录大图的列表
bigSizeList = []
#记录所有的图片总体积
totalSize = 0.0
#记录大图的size
bigTotalSize = 0.0
for root, dirs, files in os.walk(rootPath):
	for file in files:
		if file.endswith(".png"):
			tempPath =  root + '/' + os.path.join(file)
			filesList.append(tempPath)

#查找重复图片
md5list = {}
for file in filesList:
	if os.path.isdir(file):
		continue

	md5obj = hashlib.md5()
	fd = open(file, 'rb')
	while True:
		buff = fd.read(2048)
		if not buff:
			break
		md5obj.update(buff)
	fd.close()

	filemd5 = str(md5obj.hexdigest()).lower()
	if filemd5 in md5list:
		md5list[filemd5].add(file)
	else:
		md5list[filemd5] = set([file])

for key in md5list:
	values = md5list[key]
	if len(values) > 1:
		valueList = list(values)
		tempPath = valueList[0]
		tempSize = get_FileSize(tempPath)
		print(values)
		print(str(tempSize) + "KB")
		for path in valueList:
			tempSize = get_FileSize(path)
			#print(str(tempSize) + "KB")
			totalSize += tempSize

print("总计重复图片size为：" + str(totalSize))