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sparse_img.py: Don't write empty map groups.

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In certain cases, we may have no mapping of ZERO or NONZERO blocks in
the image (such as squashfs at the moment). Don't write those groups if
they are empty.

Change-Id: I82aa05fbbd79130b08868585edd5298e531c4f5a
This commit is contained in:
Tao Bao 2015-06-26 17:49:39 -07:00
parent c94a705f44
commit a89781204e
1 changed files with 8 additions and 3 deletions
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11
tools/releasetools/sparse_img.py
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@ -221,9 +221,14 @@ class SparseImage(object):
nonzero_blocks.append(b)
nonzero_blocks.append(b+1)
out["__ZERO"] = rangelib.RangeSet(data=zero_blocks)
out["__NONZERO"] = rangelib.RangeSet(data=nonzero_blocks)
out["__COPY"] = clobbered_blocks
assert zero_blocks or nonzero_blocks or clobbered_blocks
if zero_blocks:
out["__ZERO"] = rangelib.RangeSet(data=zero_blocks)
if nonzero_blocks:
out["__NONZERO"] = rangelib.RangeSet(data=nonzero_blocks)
if clobbered_blocks:
out["__COPY"] = clobbered_blocks
def ResetFileMap(self):
"""Throw away the file map and treat the entire image as