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Subject: Re: [Boost-build] several small question
From: George Georgiev (george.georgiev.sf_at_[hidden])
Date: 2012-03-21 01:21:15


Thank you Volodya,

On Tue, Mar 20, 2012 at 10:05 PM, Vladimir Prus <ghost_at_[hidden]> wrote:
>
> George,
>
>
>
> On 21/03/12 06:52, George Georgiev wrote:
>>
>> Hi,
>>
>> I have a few questions that I can not find in the documentation.
>>
>> 1. How to list all available targets, say b2 list
>
>
> There is no such way presently.
>
>
>> 2. How to create a custom group of targets, say unit-test,
>> integration-test and performance-test. When I create a test project I
>> want to make something like:
>>
>> DEPENDS unit-tests : testa ;
>>
>> then when I run b2 .... unit-tests it to compile and execute all unit
>> tests, etc with integration-test and performance-test
>
>
> You need to use the 'alias' metatarget. E.g.
>
>        alias unit-tests : testa testb ;
>
> Note that metatarget names are local to Jamfile, so
>
>        b2 unit-tests
>
> from a different directory will not find it, unless that one directory
> also has a metatarget called 'unit-tests'.
>
>
>>
>> 3. May I prioritize targets (group of targets). I have relatively big
>> project - usually I build with -q. Unfortunately if I break a test
>> even for a very low level library its test could be executed after
>> most of the dependent projects are already compiled and linked - which
>> is pointless. I would like to set the unit-tests targets to be with
>> priority.
>> Note I do not want to make fake dependencies to accomplish this. Fake
>> dependencies may result in building things that I do not care about if
>> I specify a single target.
>
>
> I don't think there's a way to do this. By default, targets are built in
> the reverse order of modification time -- that is, most recently modified
> sources are built first (see make0sort in make.c).
>
>
>> 4. How to dump a whole object with all the data it has. echo $(object)
>> outputs just its name.
>
>
> There's no way, each object has to implement printing by itself.
>
>
>> 5. How to make force only targets. I would like my integration-test
>> and performance-test to be compiled and executed only if I specify
>> this explicitly. Can I make if I run the build without target
>> arguments some of the targets to be omitted.
>
>
> Does 'explicit' (explained in docs) help here?

Yes, it is. I missed this one.

>
> HTH,
> Volodya
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