Re: Caching directories

On Tue, 2006-01-24 at 21:52 -0800, Junio C Hamano wrote:

Pavel Roskin [off-list ref] writes:

quoted

Maybe it's time to start caching directories in git?  I mean,
directories corresponding to tree objects could have their stats
recorded in the cache.  This would allow to distinguish between tracked
and untracked directories without scanning them recursively.

I do not understand the above logic.  

Given a directory path, finding out if the directory has
something tracked in it is an O(log n) operation in the current
index that does not "cache directory".  Your message implies
that you feel we could use the index file to list "untracked
directories" without recursively scanning the directory tree,
but to me, the only way to do that is to record a new directory
in the index file every time somebody (either Makefile or the
user) creates a junk directory.  That does not make much sense
to me, so I am probably misreading what you really meant.

Sorry, it looks like my post was based on incorrect assumptions.  The
new --directory option to git-ls-files seems to be exactly what I want.
It allowed me to simplify cg-clean immensely.  Further simplification
will be possible once the support for .gitignore in parent directories
is fixed.

I have no idea what 'clean' does, so would not comment on that
part of your message.

It means removing untracked files and directories.

-- 
Regards,
Pavel Roskin