45286f196a

Instead of caching downloaded files in `./buck-cache` in the working folder, cache them in `.gerritcodereview/buck-cache` in the user's home folder. This offers two advantages: - Cached files are not lost if the working folder is removed, or untracked files are removed with `git clean`. - The same cached files can be shared between multiple working folders, i.e. if the developer has separate workspaces to work on different target branches. Change-Id: I3e132df85c43431c2454421b1de0d9e901679540
Description
RETIRED, Gerrit as used by OpenStack