Adds a zip mode ("-z") to imgdiff to construct efficient patches for
zip files (including jars and apks). We identify the regions within
the zip file containing deflated data, and when a corresponding file
can be found in the source zip, a patch is generated for the
uncompressed version of the data.
The GZIP chunk type is replaced with a DEFLATE chunk type that handles
a raw deflated data stream. This new DEFLATE chunk can be used for
both gzipped pieces (as found within boot and recovery images) and zip
files (apks, etc.) The gzip header and footer are handled by NORMAL
chunks on either side of the main DEFLATE chunks. (Typically these
tiny NORMAL chunks will get merged with adjacent chunks, so the number
of output chunks is unaffected.)
Add a test script that tests the generate-apply cycle on all the zips
and images within a pair of full OTA packages.
That way we don't have to wait for clearsilver to write the thousands
of html files during every build.
(This is the build change, there is also a frameworks/base change)
Now, by default, instead of fully building everything,
we skip dexing the modules that aren't going to be included
in the current build.
This will slow down some of the incremental builds (like tests),
but it improves the regular eng build from 27.5 minutes on my
Mac Pro to 25 minutes. That's not as much of an improvement
as I had hoped for, but it's still better.
There is also a change in here that puts the java-source-list
file which is used to get around limited command line lengths
in the proper directory. Before this change, it was an
accident that the directory for that file existed!
Merge commit 'a237874ccf49e92b93faea51f65c2ff37ea19ac7'
* commit 'a237874ccf49e92b93faea51f65c2ff37ea19ac7':
fix the modtime of files in the apk when signing
Improve the speed of incremental OTA install by treating unchanging
gzip chunks as normal chunks, avoiding a decompress/recompress cycle.
This reduces the time needed to apply a patch to a boot image where
the kernel has not changed from ~30 seconds to ~2 seconds, on an opal.
SignApk fixes the timestamp of the signature files it adds. Use that
same timestamp for all the files, so that the modtime doesn't vary
from build to build. (Incremental OTAs currently spend significant
time rewriting every .apk to do nothing but patch in timestamp
changes.)
Merge commit '030614740c1a22e51c6513058852f9ab368fdf5d'
* commit '030614740c1a22e51c6513058852f9ab368fdf5d':
in auto mode, generate both edify and amend scripts for full OTAs
