Re: [Boost-build] path.exists caching?

From: Jurko Gospodnetić (jurko.gospodnetic_at_[hidden])
Date: 2008-02-11 19:15:04

   Hi Alex.

> Hi, it looks like path.exists keeps file information cached, the 
> following example proves it.  Is there any way to refresh the 
> information (clear cache) after creating the directory?

   The path.exists rule you called depends on Boost Jam's built-in 
globbing support (builtin.c) and that in turn uses Boost Jam's file 
binding (timestamp.c) which caches all information about all files it 
detects on the system as a performance optimization.

   So the direct answer would be - no, as far as I know.

   Perhaps you could tell us more about what you're tring to achieve and 
we could find a different solution?

   I do not see why you would want to create or delete files or folders 
in the initial Boost Jam script scanning phase. Such modifications 
should be made using actions and executed the same as any other build 
action. I believe that was the reason why such caching was deemed OK in 
the first place.

   Best regards,
     Jurko Gospodnetić