def extractSystemImage(archive, folder):
try:
ImageFilename = 'system.img'
if not os.access(folder, os.W_OK):
print "No access to destination folder"
return None
Package = tarfile.open(archive)
buildName = re.sub(".tar.*$", '', re.sub('^fastboot-','', os.path.basename(Package.name))) #cut-off 'fastboot' world an extension to obtain package name
systemRegexp = re.compile(".*" + ImageFilename + "$")
systemImageArchivePathList = filter(systemRegexp.match, Package.getnames())
if len(systemImageArchivePathList)!=1:
print "Too much system.img in " + Package.name
return None
if not buildName:
buildName = dummy
extractTo = folder + buildName + '/'
os.mkdir(extractTo)
print 'extracting ' + systemImageArchivePathList[0] + '\nfrom ' + archive
Package.extract(systemImageArchivePathList[0], extractTo)
return linux_like_find(extractTo, ImageFilename)
except:
print "Exception when were extracting"
return None
def findNewestBuild(folder, template): #the addCTimeKey function in the next line is expected to return list of it's argument and hash-key (i.g. ctime) [x, hash(x)] FindedList = sorted([addCTimeKey(x) for x in linux_like_find (folder, template)], key=itemgetter(1), reverse=True) # print FindedList return FindedList[0][0]