micropython 实现tar 文件解包
import upip_utarfile as tar
import os
def run(src,dest_dir):
t = tar.TarFile(src)
if not dest_dir in os.listdir():
os.mkdir(dest_dir)
dest_dir=dest_dir+"/"
prefix=dest_dir
for i in t:
i.name=i.name.rstrip('/')
print(i,i.name)
i.name=prefix+i.name
print(i.name)
if i.type == tar.DIRTYPE:
try:
os.mkdir(i.name)
except OSError as e:
if e.args[0] != errno.EEXIST and e.args[0] != errno.EISDIR:
raise e
else:
f = t.extractfile(i)
print(i.name)
copyfileobj(f, open(i.name, "wb+"))
def rmtree(top):
for path, dirs, files in os.walk(top, False):
for f in files:
os.unlink(path + "/" + f)
os.rmdir(path)
def copyfileobj(src, dest, length=512):
if hasattr(src, "readinto"):
buf = bytearray(length)
while True:
sz = src.readinto(buf)
if not sz:
break
if sz == length:
dest.write(buf)
else:
b = memoryview(buf)[:sz]
dest.write(b)
else:
while True:
buf = src.read(length)
if not buf:
break
dest.write(buf)
run("/2.tar","/tt")
run("/2.tar","/tt") 第一参数为解包文件，第二个参数为解包目录
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