port - python dependencies and github master

[CeDeROM]

Hello Koobs and thank you for your hints!! :-)

On Wed, Jul 2, 2014 at 12:49 AM, Kubilay Kocak <koobs at freebsd.org> wrote:
>> 1. How to change PORTVERSION / GH_COMMIT based on user choice /
>> option? One value for PORTVERSION seems fine but to change it to
>> master does not work..
>
> You very probably don't want to do this. PORTVERSION needs to be static,
> in the sense that it can't be conditional.

Ugh, thats the problem. I have notcied that :-( At least for the first
time I change the Makefile both RELEASE and DEVEL works, but then it
does not work... just as Makefile was somehow cached and remembers
PORTVERSION even if I change its value it still use the old value or
any numeric value which is found on the Makefile even inside
conditional statement.. strange :-)


> This is because PORTVERSION plus a few other variables is how the ports
> framework derives DISTFILES, who's checksums must remain consistent
> unless changed/updated by the maintainer (see distinfo file)

I would like to make a port to build a package by default, but also I
would like to have option to build a devel package. No additional port
for that is necessary. That would save frequent port updates, just one
smart Makefile that would do the job :-) This seems sensible, but I
have noticed checksum problems here when PORTVERSION is changed on the
fly..

Other question if additional cura-devel port is mandatory - how can I
fetch HEAD and then get the commit number to add to the package name
to distinguish different builds? If PORTVERSION must be static, then
should I add some package suffix that can be based on a dynamic
value/variable?


>> 2. Is the way to check python modules dependency correct?
>>
>> PORTNAME=       cura
>> PORTVERSION=    14.06
>> #STABLEREL=     14.06
>> CATEGORIES=     cad
>
> Add the 'python' category as a secondary category to Python ports

ACK! :-)


>> MAINTAINER=    blah at blah
>> COMMENT=        Cura is a complete and open slicing solution for
>> RepRap 3D printers.
>
> Don't include the package/software name or indefinite articles (A/An) in
> COMMENT. Also strip the trailing full stop (period).

ACK! :-)


>> OPTIONS_SINGLE= BTYPE
>> OPTIONS_SINGLE_BTYPE=   RELEASE DEVEL
>> OPTIONS_SUB=    yes
>> RELEASE_DESC=   Build latest stable release from github (${PORTVERSION})
>> DEVEL_DESC=     Build latest development snapshot from github master
>> OPTIONS_DEFAULT=        RELEASE
>>
>> .include <bsd.port.options.mk>
>>
>> #.if ${PORT_OPTIONS:MRELEASE}
>> #PORTVERSION=   ${STABLEREL}
>> #.endif
>>
>> .if ${PORT_OPTIONS:MDEVEL}
>> PORTVERSION=    master
>> #STABLEREL=      master
>> .endif
>>
>> #PORTVERSION=  ${STABLEREL}
>>
>> USE_PYTHON=     yes
>
> You at least want USE_PYDISTUTILS=yes here, and maybe
> PYDISTUTILS_AUTOPLIST=yes also.
>
> See /usr/ports/Mk/bsd.python.mk for more information.

ACK! :-)


>> RUN_DEPENDS+=
>
> First assignment of {RUN,BUILD}_DEPENDS should be = not +=
>
>> ${PYTHONPREFIX_SITELIBDIR}/OpenGL:${PORTSDIR}/graphics/py-opengl \
>>                 ${PYTHONPREFIX_SITELIBDIR}/numpy:${PORTSDIR}/math/py-numpy \
>>
>> ${PYTHONPREFIX_SITELIBDIR}/setuptools:${PORTSDIR}/devel/py-setuptools
>> \
>>                 ${PYTHONPREFIX_SITELIBDIR}/serial:${PORTSDIR}/comms/py-serial
>> BUILD_DEPENDS+= git:${PORTSDIR}/devel/git
>
> If you're not depending on a binary (like the git line above), the
> simplest way is to depend on the package names. Eg:
>
> ${PYTHON_PKGNAMEPREFIX}setuptools>[0|<version>]:${PORTSDIR}/category/<portname>

I know the Porter's Handbook, but there is no information on how to
verify the dependencies on python modules. Using
${PYTHON_PKGNAMEPREFIX} would search for binaries, which is not the
case. This is why I have "invented" ${PYTHONPREFIX_SITELIBDIR}/OpenGL
which works well and checks if a given python module is available :-)


> If you need any porting help, we have a few IRC channels available for you:
>
> 1) #freebsd-ports - freenode
> 2) #freebsd-python - freenode
> 3) #bsdports - Efnet

Thank you I will connect that way! :-)

Best regards :-)
Tomek

-- 
CeDeROM, SQ7MHZ, http://www.tomek.cedro.info