initial attempt at using Perl threads. It seems Git::Raw isn't
threadsafe, though.
try to get things working, fail.
minor fix
share Git::Raw objects among threads, which makes them work without
fixing Git::Raw
use 8 threads because powers of two are good
enable thread warnings
threaded (and meta-threaded) code for find_siblings_and_types
clean up thread code
try to get sharing right
explicitly set list context for collector threads
share more between threads.
locks to allow more parallelization
create head/ and wd/ in parallel
use less useless uses
parallelize harder
remove poor man's async IO now we have threads
remove find_changed_start()
make sure all the find_changed routines are called before the first find_siblings_and_types
repo-overlay.py: initial commit of a very ugly and broken python version
fix git invocation in gitz