[asdf-devel] Alternate default lisp system location

[Faré]

On Wed, Mar 12, 2014 at 7:24 PM, Zach Beane <xach at xach.com> wrote:
> Faré <fahree at gmail.com> writes:
>
>> On Wed, Mar 12, 2014 at 6:07 PM, Pascal Costanza <pc at p-cos.net> wrote:
>>> Can I set CL_SOURCE_REGISTRY to a value that deactivates all "default" paths? Then I don't care what the default is...
>>>
>> Yes, the example I gave you did that:
>>
>> export CL_SOURCE_REGISTRY=~/lisp//
>>
>> As you can see with (asdf::parse-source-registry-string
>> "/home/tunes/lisp//"), it expands to:
>> (:SOURCE-REGISTRY (:TREE "/home/tunes/lisp")
>>  (:IGNORE-INHERITED-CONFIGURATION))
>>
>> The double-slash "//" is significative: it means recurse through the directory.
>>
>> Those readers who do want to inherit the configuration should just add
>> a colon ":" at the end
>> — or a semi-colon, if using Windows:
>> export CL_SOURCE_REGISTRY=~/lisp//:
>>
>> Alternatively, you can put this in your
>> ~/.config/common-lisp/source-registry.conf:
>> (:source-registry (:tree (:home "lisp")) :ignore-inherited-configuration)
>
> Instructions like these are one of the reasons I have been unable to
> make or recommend regular use of the source registry configuration
> system.
>
You could also
mkdir -p ~/.config/common-lisp/
echo "\"$HOME/lisp//\"" > ~/.config/common-lisp/source-registry.conf

I don't know what kind of instructions you want.

Having good defaults is precisely what makes such instructions
superfluous for beginners, and why Robert wants to define a better
default location for code than currently used.

Having instructions is still necessary for people who want to override
the defaults — and anyone who wants to release software built in a
controlled repeatable way needs understand how to do that.

If you have a better design to offer, I'm sure Robert is listening.

—♯ƒ • François-René ÐVB Rideau •Reflection&Cybernethics• http://fare.tunes.org
Verbal constructs of above-average phonemic quantity implement the qualitative
actualization of cognitive disenlightenment. (Big words obscure meaning.)