tree 8e78b9b7c08f4595efb52ab9260e05c11b9ffd45
parent da0a7c1f3cb580065ab45577ced06f88ab0afb42
author Shawn Pearce <spearce@spearce.org> 1500499223 -0700
committer Shawn Pearce <spearce@spearce.org> 1500499739 -0700

dfs: Fix DataFormatException: 0 bytes to inflate

When a file uses a different block size (e.g.  500) than the cache
(e.g.  512), and the DfsPackFile's blockSize field has not been
initialized, the cache misaligns block loads.  The cache uses its
default of 512 to compute the block alignment instead of the file's
500.

This causes DfsReader try to set an empty range into an Inflater,
resulting in an object being unable to load.

Change-Id: I7d6352708225f62ef2f216d1ddcbaa64be113df6