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Re: 23.0.92; Bug in Directory Variables

From: David De La Harpe Golden
Subject: Re: 23.0.92; Bug in Directory Variables
Date: Thu, 09 Apr 2009 12:03:00 +0100
User-agent: Mozilla-Thunderbird (X11/20090103)

Chong Yidong wrote:
The following patch changes the directory local variables code so that
the cache stores the file atime.  Before using each cache entry, we
check that against the file modtime.

This is not an ideal time to make changes of this sort, but I think this
problem (i.e., inability to detect changes in .dir-locals.el files) is
quite a serious one.  So please help me review this patch.

I suspect the systems where a problem with the patch will be most noticeable will be windoze, since there's an extra file attributes call? I have a suspicion you almost might as well abandon the caching given the scary timings we've seen for that in the past. I could be wrong though.

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