python-distutils-ng.eclass: allow useflag dependencies for python
 

I am missing a replacement for PYTHON_USE_WITH.

Would the attached patch help in any way? Review? Other ideas?

python-distutils-ng.eclass: allow useflag dependencies for python
 

On Thu, 06 Sep 2012 22:44:34 +0200
hasufell <hasufell@gentoo.org> wrote:

> --- python-distutils-ng.eclass
> +++ python-distutils-ng.eclass
> @@ -59,6 +59,25 @@
> # Set to any value to disable automatic reinstallation of scripts in
> bin # directories. See python-distutils-ng_src_install function.
>
> +# @ECLASS-VARIABLE: PYTHON_USE
> +# @DEFAULT_UNSET
> +# @DESCRIPTION:
> +# comma seperated list of useflags needed for python
> +# this is directly substituted into dev-lang/python[${PYTHON_USE}]
> thus allowing +# all valid useflag dependencies
> +# example 1: PYTHON_USE="xml,sqlite"
> +# example 2: PYTHON_USE="xml?,threads?,-foo"
> +
> +# @ECLASS-VARIABLE: JYTHON_USE
> +# @DEFAULT_UNSET
> +# @DESCRIPTION:
> +# same as PYTHON_USE just for JYTHON
> +
> +# @ECLASS-VARIABLE: PYPY_USE
> +# @DEFAULT_UNSET
> +# @DESCRIPTION:
> +# same as PYTHON_USE just for PYPY
> +

Why I feel like we're close to PYTHON2_USE, PYTHON3_USE,
PYTHON3NG_USE...

> EXPORT_FUNCTIONS src_prepare src_configure src_compile src_test
> src_install
> case "${EAPI}" in
> @@ -107,16 +126,22 @@
> fi
> unset required_use_str
>
> +# avoid empty use deps
> +[[ -n ${PYTHON_USE} ]] && _PYTHON_USE="[${PYTHON_USE}]" ||
> _PYTHON_USE="" +[[ -n ${JYTHON_USE} ]] &&
> _JYTHON_USE="[${JYTHON_USE}]" || _JYTHON_USE="" +[[ -n ${PYPY_USE} ]]
> && _PYPY_USE="[${PYPY_USE}]" || _PYPY_USE="" +
> +# set python DEPEND and RDEPEND
> for impl in ${PYTHON_COMPAT}; do
> IUSE+=" python_targets_${impl}"
> dep_str="${impl/_/.}"
> case "${dep_str}" in
> python?.?)
> - dep_str="dev-lang/python:${dep_str: -3}" ;;
> + dep_str="dev-lang/python:${dep_str:
> -3}${_PYTHON_USE}" ;; jython?.?)
> - dep_str="dev-java/jython:${dep_str: -3}" ;;
> + dep_str="dev-java/jython:${dep_str:
> -3}${_JYTHON_USE}" ;; pypy?.?)
> - dep_str="dev-python/pypy:${dep_str: -3}" ;;
> + dep_str="dev-python/pypy:${dep_str:
> -3}${_PYPY_USE}" ;; *)
> die "Unsupported implementation: ${impl}" ;;
> esac

I have to think more about this.

Where are your use cases?

--
Best regards,
Michał Górny

python-distutils-ng.eclass: allow useflag dependencies for python
 

On Thu, Sep 06, 2012 at 10:44:34PM +0200, hasufell wrote:
> I am missing a replacement for PYTHON_USE_WITH.
>
> Would the attached patch help in any way? Review? Other ideas?

> --- python-distutils-ng.eclass
> +++ python-distutils-ng.eclass
> @@ -59,6 +59,25 @@
> # Set to any value to disable automatic reinstallation of scripts in bin
> # directories. See python-distutils-ng_src_install function.
>
> +# @ECLASS-VARIABLE: PYTHON_USE
> +# @DEFAULT_UNSET
> +# @DESCRIPTION:
> +# comma seperated list of useflags needed for python
> +# this is directly substituted into dev-lang/python[${PYTHON_USE}] thus allowing
> +# all valid useflag dependencies
> +# example 1: PYTHON_USE="xml,sqlite"
> +# example 2: PYTHON_USE="xml?,threads?,-foo"
> +
> +# @ECLASS-VARIABLE: JYTHON_USE
> +# @DEFAULT_UNSET
> +# @DESCRIPTION:
> +# same as PYTHON_USE just for JYTHON
> +
> +# @ECLASS-VARIABLE: PYPY_USE
> +# @DEFAULT_UNSET
> +# @DESCRIPTION:
> +# same as PYTHON_USE just for PYPY
> +
> EXPORT_FUNCTIONS src_prepare src_configure src_compile src_test src_install
>
> case "${EAPI}" in
> @@ -107,16 +126,22 @@
> fi
> unset required_use_str
>
> +# avoid empty use deps
> +[[ -n ${PYTHON_USE} ]] && _PYTHON_USE="[${PYTHON_USE}]" || _PYTHON_USE=""
> +[[ -n ${JYTHON_USE} ]] && _JYTHON_USE="[${JYTHON_USE}]" || _JYTHON_USE=""
> +[[ -n ${PYPY_USE} ]] && _PYPY_USE="[${PYPY_USE}]" || _PYPY_USE=""

Ick.
_PYTHON_USE="${PYTHON_USE:+[${PYTHON_USE}]}"
_JYTHON_USE="${JYTHON_USE:+[${JYTHON_USE}]}"
_PYPY_USE="${PYPY_USE:+[${PYPY_USE}]}"



> +
> +# set python DEPEND and RDEPEND
> for impl in ${PYTHON_COMPAT}; do
> IUSE+=" python_targets_${impl}"
> dep_str="${impl/_/.}"
> case "${dep_str}" in
> python?.?)
> - dep_str="dev-lang/python:${dep_str: -3}" ;;
> + dep_str="dev-lang/python:${dep_str: -3}${_PYTHON_USE}" ;;
should I ask wth the space is for?

> jython?.?)
> - dep_str="dev-java/jython:${dep_str: -3}" ;;
> + dep_str="dev-java/jython:${dep_str: -3}${_JYTHON_USE}" ;;
> pypy?.?)
> - dep_str="dev-python/pypy:${dep_str: -3}" ;;
> + dep_str="dev-python/pypy:${dep_str: -3}${_PYPY_USE}" ;;
> *)
> die "Unsupported implementation: ${impl}" ;;
> esac

python-distutils-ng.eclass: allow useflag dependencies for python
 

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA512

On 09/06/2012 05:27 PM, Brian Harring wrote:
> On Thu, Sep 06, 2012 at 10:44:34PM +0200, hasufell wrote:
>> - dep_str="dev-lang/python:${dep_str: -3}" ;; +
>> dep_str="dev-lang/python:${dep_str: -3}${_PYTHON_USE}" ;;
> should I ask wth the space is for?
>

Without the space, ${dep_str:-3} means "${dep_str} unless empty or
unset, otherwise 3"; with the space, ${dep_str: -3} (can also be
written ${dep_str:(-3)}) means "the last 3 characters of ${dep_str}".
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python-distutils-ng.eclass: allow useflag dependencies for python
 

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> Where are your use cases?

qgrep PYTHON_USE_WITH
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python-distutils-ng.eclass: allow useflag dependencies for python
 

On Sat, 08 Sep 2012 15:04:53 +0200
hasufell <hasufell@gentoo.org> wrote:

> -----BEGIN PGP SIGNED MESSAGE-----
> Hash: SHA1
>
> > Where are your use cases?
>
> qgrep PYTHON_USE_WITH

That gives more cases than your solution can handle...

--
Best regards,
Michał Górny