Re: progmodes/project.el and search paths

[Dmitry Gutov]

On 08/04/2015 02:52 PM, Eric Ludlam wrote:

> That is true now for project.el.  Once you support 20+ project
> definitions as in EDE where vc is just one of them, all that negligible
> time adds up.

I honestly expect that project-find-functions, for each individual user, 
will almost never reach even 10 items, let alone 20.

> Asking all 20+ project definitions to do their own caching is something
> EDE used to do, and it was a pain to maintain.  I recommend against it.

You were able to do caching thanks to allowing some restrictions on how 
the current project depends on the current buffer (basically, along the 
lines of locate-dominating-file).

Just a day or two ago, Stephen Leake posted that he was writing a 
project implementation that's active everywhere, as soon as the user 
visits the project.

Caching is probably still possible, even in view of that, but there are 
more things to consider.