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Re: progmodes/project.el and search paths

From: Dmitry Gutov
Subject: Re: progmodes/project.el and search paths
Date: Tue, 4 Aug 2015 19:09:01 +0300
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:40.0) Gecko/20100101 Thunderbird/40.0

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.

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