system.img镜像转换为system.new.dat + system.transfer.list

android 8.1上面验证，支持所有的android版本，直接放到sdk中执行即可。
img2sdat.py #!/usr/bin/env python #coding=utf-8
import sys
if sys.hexversion < 0x02070000:   print >> sys.stderr, "Python 2.7 or newer is required."   sys.exit(1)
from hashlib import sha1 as sha1
import common import sparse_img
OPTIONS = common.OPTIONS
try:     PARTITION_NAME = str(sys.argv[1])     SYSTEM_IMG = str(sys.argv[2])     OUTPUT_DIR = str(sys.argv[3])     OPTIONS.outpath = OUTPUT_DIR except IndexError:     print('\nUsage: img2sdat.py \n')     print('  eg:   img2sdat.py system system.img system_new\n')     print('        : input partition name')     print('        : input image name')     print('        : image new dat dir')     print('        Visit xda thread for more information.\n')     try:        input = raw_input     except NameError: pass     input('Press ENTER to exit...')     sys.exit()

def main(argv):     system_tgt = sparse_img.SparseImage(SYSTEM_IMG);   system_tgt.ResetFileMap()   system_diff = common.BlockDifference(PARTITION_NAME, system_tgt, src=None, check_first_block=False, version=4)

if __name__ == '__main__':     main(sys.argv[1:])   目前transfer.list已经最新的支持version=4， system.transfer.list版本进化，这里针对不同的android版本，传入不同的version=1/2/3/4即可
对common.py打patch diff --git a/tools/releasetools/common.py b/tools/releasetools/common.py index 22d95a9..4b981e3 100644 --- a/tools/releasetools/common.py +++ b/tools/releasetools/common.py @@ -1406,6 +1406,12 @@ class BlockDifference(object):      b = blockimgdiff.BlockImageDiff(tgt, src, threads=OPTIONS.worker_threads,                                      version=self.version,                                      disable_imgdiff=self.disable_imgdiff) + +    self.path = os.path.join(OPTIONS.outpath, partition) +    print (self.path) +     b.Compute(self.path ) +    return +      tmpdir = tempfile.mkdtemp()      OPTIONS.tempfiles.append(tmpdir)      self.path = os.path.join(tmpdir, partition)
然后即可在android的根目录下面执行如下命令： ./build/tools/releasetools/img2sdat.py  system out/target/product/xxxx/system.img out/target/product/xxxx/sdat/ Total of 475136 4096-byte output blocks in 2302 input chunks. Finding transfers... Generating digraph... Finding vertex sequence... Reversing backward edges...   0/0 dependencies (0.00%) were violated; 0 source blocks stashed. Improving vertex order... Reticulating splines... 940847104  940847104 (100.00%)     new __DATA 0-32765 32768-32769 32889-32890 65536-65537 66033-98301 98304-98305 98425-98426 98922-131070 131072-131073 131569-151714 163840-163841 163961-163962 164458-196605 196608-196609 229376-229377 229497-229498 229994-262141 262144-262145 294912-294913 295033-295034 295530-327677 327680-327681 360448-360449 393216-393217 425984-425985 458752-458753 459249-475135 max stashed blocks: 0  (0 bytes), limit:
即可在目录 out/target/product/xxxx/sdat看到有system.new.dat与system.transfer.list文件生成。命令格式： img2sdat.py 分区名 img路径 new.dat路径

eg：img2sdat.py system system.img system_out_dir

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