tree c6d999e4097e55cc0b124f54794ef061f735ea13
parent 0c44a2a9f3fb4a6be94bfaa4f00cbccca1dbb57c
author Doug Zongker <dougz@android.com> 1253904720 -0700
committer Doug Zongker <dougz@android.com> 1253904720 -0700

integrate bsdiff into imgdiff, instead of using subprocess

Integrate the bsdiff code into imgdiff so we can just call it rather
than writing temp files and invoking bsdiff as a subprocess.  When
computing multiple patches from the same source file, we can also save
time by doing some bsdiff preprocessing on the source file only once.

(Note this renames the existing 'bsdiff.c' -- which actually does
patching in applypatch -- to 'bspatch.c', and introduces a new
bsdiff.c linked into imgdiff.)