Re: Help needed testing EDE branch

Daniel Colascione <[email protected]> Wed, 25 Jun 2014 13:46:05 -0700
Newsgroups	gmane.emacs.cedet
Message-ID	<[email protected]>
On 06/25/2014 01:43 PM, Lluís wrote:
> Eric M Ludlam writes:
> 
>> On 06/22/2014 03:30 PM, Lluís wrote:
>>> I also tried to run "customize-project" on a
>>> linux project, and it looks like no file is saved with the project
>>> customizations. I guess that's still not possible (to somehow "overlay" local
>>> customizations on auto-detected projects).
> 
>> Hi Lluis,
> 
>> There are definitely two camps on these project types.  Some generate 
>> your build system have save files to remember your configuration (such 
>> as the the 'proj' type that supports creating both Makefiles and 
>> Automake files.
> 
>> The other types such as Linux, Emacs, cpp-root, arduino, and the other 
>> automake project type which all detect existing projects, and if you 
>> want to customize them, you need to edit some file related to that 
>> project which Emacs would read in later.
> 
> That makes all the sense in the world.
> 
> 
>> The generic project is different in that it just tries to find some of 
>> your code in project form, and then has a configuration that sits on top 
>> that saves itself between sessions.   This system is nice in that the 
>> code to make the project is simple, but you still get at the key pieces 
>> needed for Semantic smart completion parsing, etc.
> 
>> I think your observation is that some of the project types such as Linux 
>> and Emacs don't have enough automatically configured such that you want 
>> to add some extra on top and save it away.   Perhaps the right thing is 
>> to update 'linux' as a subclass of 'generic' but with some of the extra 
>> goodness from ede/linux kept around for pre-configuring the system.
> 
> I don't have any specific use-case. I was just wondering if it would be possible
> to, for example, customize something like cpp-root's spp-table in
> ede-linux-project, or, for example, set some project-local variables or the
> build command.
> 
> In fact, I think that saving the project-local variables across sessions would
> be the most useful feature at this point. To me it makes sense to implement this
> functionality in EDE, but many other tools try to do the same, and emacs also
> has the directory-local variables.
> 
> I know it would be a huge effort, but do you think it would make sense to
> refactor the project class hierarchy? For example:
> 
> * There could be the current ede-project as a base.
> 
> * Per-language subclasses, (e.g., ede-lang-c, ede-lang-c++, ede-lang-java,
>   etc.), which only care about language-specific things like include
>   directories and preprocessor macros.

I don't think language should have anything to do with the project
system. Plenty of projects (like Emacs!) are written in a mixture of
languages. Projects should opportunistically define facilities that
language modes can use, e.g., header file disambiguation, but there
should be no such thing as a "C++ project".

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