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721 lines
18 KiB
721 lines
18 KiB
# Copyright 1999-2013 Gentoo Foundation
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# Distributed under the terms of the GNU General Public License v2
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# $Header: /var/cvsroot/gentoo-x86/eclass/python-utils-r1.eclass,v 1.19 2013/03/07 20:58:51 radhermit Exp $
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# @ECLASS: python-utils-r1
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# @MAINTAINER:
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# Python team <python@gentoo.org>
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# @AUTHOR:
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# Author: Michał Górny <mgorny@gentoo.org>
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# Based on work of: Krzysztof Pawlik <nelchael@gentoo.org>
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# @BLURB: Utility functions for packages with Python parts.
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# @DESCRIPTION:
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# An utility eclass providing functions to query Python implementations,
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# install Python modules and scripts.
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#
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# This eclass does not set any metadata variables nor export any phase
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# functions. It can be inherited safely.
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#
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# For more information, please see the python-r1 Developer's Guide:
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# http://www.gentoo.org/proj/en/Python/python-r1/dev-guide.xml
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case "${EAPI:-0}" in
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0|1|2|3|4|5)
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# EAPI=4 makes die behavior clear
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;;
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*)
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die "Unsupported EAPI=${EAPI} (unknown) for ${ECLASS}"
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;;
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esac
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if [[ ${_PYTHON_ECLASS_INHERITED} ]]; then
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die 'python-r1 suite eclasses can not be used with python.eclass.'
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fi
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if [[ ! ${_PYTHON_UTILS_R1} ]]; then
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inherit multilib
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# @ECLASS-VARIABLE: _PYTHON_ALL_IMPLS
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# @INTERNAL
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# @DESCRIPTION:
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# All supported Python implementations, most preferred last.
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_PYTHON_ALL_IMPLS=(
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jython2_5 jython2_7
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pypy1_9 pypy2_0
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python3_1 python3_2 python3_3
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python2_5 python2_6 python2_7
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)
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# @FUNCTION: _python_impl_supported
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# @USAGE: <impl>
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# @INTERNAL
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# @DESCRIPTION:
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# Check whether the implementation <impl> (PYTHON_COMPAT-form)
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# is still supported.
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#
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# Returns 0 if the implementation is valid and supported. If it is
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# unsupported, returns 1 -- and the caller should ignore the entry.
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# If it is invalid, dies with an appopriate error messages.
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_python_impl_supported() {
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debug-print-function ${FUNCNAME} "${@}"
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[[ ${#} -eq 1 ]] || die "${FUNCNAME}: takes exactly 1 argument (impl)."
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local impl=${1}
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# keep in sync with _PYTHON_ALL_IMPLS!
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# (not using that list because inline patterns shall be faster)
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case "${impl}" in
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python2_[567]|python3_[123]|pypy1_9|pypy2_0|jython2_[57])
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return 0
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;;
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pypy1_8)
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return 1
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;;
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*)
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die "Invalid implementation in PYTHON_COMPAT: ${impl}"
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esac
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}
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# @ECLASS-VARIABLE: PYTHON
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# @DESCRIPTION:
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# The absolute path to the current Python interpreter.
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#
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# Set and exported only in commands run by python_foreach_impl().
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#
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# Example value:
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# @CODE
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# /usr/bin/python2.6
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# @CODE
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# @ECLASS-VARIABLE: EPYTHON
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# @DESCRIPTION:
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# The executable name of the current Python interpreter.
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#
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# This variable is used consistently with python.eclass.
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#
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# Set and exported only in commands run by python_foreach_impl().
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#
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# Example value:
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# @CODE
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# python2.6
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# @CODE
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# @ECLASS-VARIABLE: PYTHON_SITEDIR
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# @DESCRIPTION:
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# The path to Python site-packages directory.
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#
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# Set and exported on request using python_export().
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#
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# Example value:
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# @CODE
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# /usr/lib64/python2.6/site-packages
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# @CODE
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# @ECLASS-VARIABLE: PYTHON_INCLUDEDIR
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# @DESCRIPTION:
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# The path to Python include directory.
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#
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# Set and exported on request using python_export().
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#
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# Example value:
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# @CODE
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# /usr/include/python2.6
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# @CODE
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# @ECLASS-VARIABLE: PYTHON_LIBPATH
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# @DESCRIPTION:
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# The path to Python library.
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#
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# Set and exported on request using python_export().
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# Valid only for CPython.
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#
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# Example value:
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# @CODE
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# /usr/lib64/libpython2.6.so
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# @CODE
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# @ECLASS-VARIABLE: PYTHON_PKG_DEP
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# @DESCRIPTION:
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# The complete dependency on a particular Python package as a string.
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#
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# Set and exported on request using python_export().
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#
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# Example value:
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# @CODE
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# dev-lang/python:2.7[xml]
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# @CODE
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# @FUNCTION: python_export
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# @USAGE: [<impl>] <variables>...
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# @DESCRIPTION:
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# Set and export the Python implementation-relevant variables passed
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# as parameters.
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#
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# The optional first parameter may specify the requested Python
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# implementation (either as PYTHON_TARGETS value, e.g. python2_7,
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# or an EPYTHON one, e.g. python2.7). If no implementation passed,
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# the current one will be obtained from ${EPYTHON}.
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#
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# The variables which can be exported are: PYTHON, EPYTHON,
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# PYTHON_SITEDIR. They are described more completely in the eclass
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# variable documentation.
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python_export() {
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debug-print-function ${FUNCNAME} "${@}"
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local impl var
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case "${1}" in
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python*|jython*)
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impl=${1/_/.}
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shift
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;;
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pypy-c*)
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impl=${1}
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shift
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;;
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pypy*)
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local v=${1#pypy}
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impl=pypy-c${v/_/.}
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shift
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;;
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*)
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impl=${EPYTHON}
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[[ ${impl} ]] || die "python_export: no impl nor EPYTHON"
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;;
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esac
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debug-print "${FUNCNAME}: implementation: ${impl}"
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for var; do
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case "${var}" in
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EPYTHON)
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export EPYTHON=${impl}
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debug-print "${FUNCNAME}: EPYTHON = ${EPYTHON}"
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;;
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PYTHON)
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export PYTHON=${EPREFIX}/usr/bin/${impl}
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debug-print "${FUNCNAME}: PYTHON = ${PYTHON}"
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;;
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PYTHON_SITEDIR)
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local dir
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case "${impl}" in
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python*)
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dir=/usr/$(get_libdir)/${impl}
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;;
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jython*)
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dir=/usr/share/${impl}/Lib
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;;
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pypy*)
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dir=/usr/$(get_libdir)/${impl/-c/}
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;;
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esac
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export PYTHON_SITEDIR=${EPREFIX}${dir}/site-packages
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debug-print "${FUNCNAME}: PYTHON_SITEDIR = ${PYTHON_SITEDIR}"
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;;
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PYTHON_INCLUDEDIR)
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local dir
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case "${impl}" in
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python*)
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dir=/usr/include/${impl}
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;;
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jython*)
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dir=/usr/share/${impl}/Include
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;;
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pypy*)
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dir=/usr/$(get_libdir)/${impl/-c/}/include
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;;
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esac
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export PYTHON_INCLUDEDIR=${EPREFIX}${dir}
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debug-print "${FUNCNAME}: PYTHON_INCLUDEDIR = ${PYTHON_INCLUDEDIR}"
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;;
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PYTHON_LIBPATH)
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local libname
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case "${impl}" in
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python*)
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libname=lib${impl}
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;;
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*)
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die "${EPYTHON} lacks a dynamic library"
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;;
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esac
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local path=${EPREFIX}/usr/$(get_libdir)
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export PYTHON_LIBPATH=${path}/${libname}$(get_libname)
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debug-print "${FUNCNAME}: PYTHON_LIBPATH = ${PYTHON_LIBPATH}"
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;;
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PYTHON_PKG_DEP)
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local d
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case ${impl} in
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python*)
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PYTHON_PKG_DEP='dev-lang/python';;
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jython*)
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PYTHON_PKG_DEP='dev-java/jython';;
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pypy*)
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PYTHON_PKG_DEP='dev-python/pypy';;
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*)
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die "Invalid implementation: ${impl}"
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esac
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# slot
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PYTHON_PKG_DEP+=:${impl##*[a-z-]}
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# use-dep
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if [[ ${PYTHON_REQ_USE} ]]; then
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PYTHON_PKG_DEP+=[${PYTHON_REQ_USE}]
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fi
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export PYTHON_PKG_DEP
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debug-print "${FUNCNAME}: PYTHON_PKG_DEP = ${PYTHON_PKG_DEP}"
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;;
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*)
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die "python_export: unknown variable ${var}"
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esac
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done
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}
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# @FUNCTION: python_get_PYTHON
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# @USAGE: [<impl>]
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# @DESCRIPTION:
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# Obtain and print the path to the Python interpreter for the given
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# implementation. If no implementation is provided, ${EPYTHON} will
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# be used.
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#
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# If you just need to have PYTHON set (and exported), then it is better
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# to use python_export() directly instead.
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python_get_PYTHON() {
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debug-print-function ${FUNCNAME} "${@}"
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python_export "${@}" PYTHON
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echo "${PYTHON}"
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}
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# @FUNCTION: python_get_EPYTHON
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# @USAGE: <impl>
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# @DESCRIPTION:
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# Obtain and print the EPYTHON value for the given implementation.
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#
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# If you just need to have EPYTHON set (and exported), then it is better
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# to use python_export() directly instead.
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python_get_EPYTHON() {
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debug-print-function ${FUNCNAME} "${@}"
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python_export "${@}" EPYTHON
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echo "${EPYTHON}"
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}
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# @FUNCTION: python_get_sitedir
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# @USAGE: [<impl>]
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# @DESCRIPTION:
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# Obtain and print the 'site-packages' path for the given
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# implementation. If no implementation is provided, ${EPYTHON} will
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# be used.
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#
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# If you just need to have PYTHON_SITEDIR set (and exported), then it is
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# better to use python_export() directly instead.
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python_get_sitedir() {
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debug-print-function ${FUNCNAME} "${@}"
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python_export "${@}" PYTHON_SITEDIR
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echo "${PYTHON_SITEDIR}"
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}
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# @FUNCTION: python_get_includedir
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# @USAGE: [<impl>]
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# @DESCRIPTION:
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# Obtain and print the include path for the given implementation. If no
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# implementation is provided, ${EPYTHON} will be used.
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#
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# If you just need to have PYTHON_INCLUDEDIR set (and exported), then it
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# is better to use python_export() directly instead.
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python_get_includedir() {
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debug-print-function ${FUNCNAME} "${@}"
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python_export "${@}" PYTHON_INCLUDEDIR
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echo "${PYTHON_INCLUDEDIR}"
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}
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# @FUNCTION: python_get_library_path
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# @USAGE: [<impl>]
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# @DESCRIPTION:
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# Obtain and print the Python library path for the given implementation.
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# If no implementation is provided, ${EPYTHON} will be used.
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#
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# Please note that this function can be used with CPython only. Use
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# in another implementation will result in a fatal failure.
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python_get_library_path() {
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debug-print-function ${FUNCNAME} "${@}"
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python_export "${@}" PYTHON_LIBPATH
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echo "${PYTHON_LIBPATH}"
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}
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# @FUNCTION: _python_rewrite_shebang
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# @INTERNAL
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# @USAGE: [<EPYTHON>] <path>...
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# @DESCRIPTION:
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# Replaces 'python' executable in the shebang with the executable name
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# of the specified interpreter. If no EPYTHON value (implementation) is
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# used, the current ${EPYTHON} will be used.
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#
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# All specified files must start with a 'python' shebang. A file not
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# having a matching shebang will be refused. The exact shebang style
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# will be preserved in order not to break anything.
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#
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# Example conversions:
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# @CODE
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# From: #!/usr/bin/python -R
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# To: #!/usr/bin/python2.7 -R
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#
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# From: #!/usr/bin/env FOO=bar python
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# To: #!/usr/bin/env FOO=bar python2.7
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# @CODE
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_python_rewrite_shebang() {
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debug-print-function ${FUNCNAME} "${@}"
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local impl
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case "${1}" in
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python*|jython*|pypy-c*)
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impl=${1}
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shift
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;;
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*)
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impl=${EPYTHON}
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[[ ${impl} ]] || die "${FUNCNAME}: no impl nor EPYTHON"
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;;
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esac
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debug-print "${FUNCNAME}: implementation: ${impl}"
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local f
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for f; do
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local shebang=$(head -n 1 "${f}")
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local from
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debug-print "${FUNCNAME}: path = ${f}"
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debug-print "${FUNCNAME}: shebang = ${shebang}"
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if [[ "${shebang} " == *'python '* ]]; then
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from=python
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elif [[ "${shebang} " == *'python2 '* ]]; then
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from=python2
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elif [[ "${shebang} " == *'python3 '* ]]; then
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from=python3
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else
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eerror "A file does not seem to have a supported shebang:"
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eerror " file: ${f}"
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eerror " shebang: ${shebang}"
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die "${FUNCNAME}: ${f} does not seem to have a valid shebang"
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fi
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if [[ ${from} == python2 && ${impl} == python3*
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|| ${from} == python3 && ${impl} != python3* ]]; then
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eerror "A file does have shebang not supporting requested impl:"
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eerror " file: ${f}"
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eerror " shebang: ${shebang}"
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eerror " impl: ${impl}"
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die "${FUNCNAME}: ${f} does have shebang not supporting ${EPYTHON}"
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fi
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sed -i -e "1s:${from}:${impl}:" "${f}" || die
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done
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}
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|
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# @FUNCTION: _python_ln_rel
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# @INTERNAL
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# @USAGE: <from> <to>
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# @DESCRIPTION:
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# Create a relative symlink.
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_python_ln_rel() {
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debug-print-function ${FUNCNAME} "${@}"
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local from=${1}
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local to=${2}
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local frpath=${from%/*}/
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local topath=${to%/*}/
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local rel_path=
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|
|
|
while [[ ${topath} ]]; do
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local frseg= toseg=
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|
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while [[ ! ${frseg} && ${frpath} ]]; do
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frseg=${frpath%%/*}
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frpath=${frpath#${frseg}/}
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done
|
|
|
|
while [[ ! ${toseg} && ${topath} ]]; do
|
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toseg=${topath%%/*}
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topath=${topath#${toseg}/}
|
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done
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|
|
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if [[ ${frseg} != ${toseg} ]]; then
|
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rel_path=../${rel_path}${frseg:+${frseg}/}
|
|
fi
|
|
done
|
|
rel_path+=${frpath}${1##*/}
|
|
|
|
debug-print "${FUNCNAME}: ${from} -> ${to}"
|
|
debug-print "${FUNCNAME}: rel_path = ${rel_path}"
|
|
|
|
ln -fs "${rel_path}" "${to}"
|
|
}
|
|
|
|
# @FUNCTION: python_optimize
|
|
# @USAGE: [<directory>...]
|
|
# @DESCRIPTION:
|
|
# Compile and optimize Python modules in specified directories (absolute
|
|
# paths). If no directories are provided, the default system paths
|
|
# are used (prepended with ${D}).
|
|
python_optimize() {
|
|
debug-print-function ${FUNCNAME} "${@}"
|
|
|
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[[ ${EPYTHON} ]] || die 'No Python implementation set (EPYTHON is null).'
|
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|
|
local PYTHON=${PYTHON}
|
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[[ ${PYTHON} ]] || python_export PYTHON
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|
|
|
# Note: python2.6 can't handle passing files to compileall...
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|
|
|
# default to sys.path
|
|
if [[ ${#} -eq 0 ]]; then
|
|
local f
|
|
while IFS= read -r -d '' f; do
|
|
# 1) accept only absolute paths
|
|
# (i.e. skip '', '.' or anything like that)
|
|
# 2) skip paths which do not exist
|
|
# (python2.6 complains about them verbosely)
|
|
|
|
if [[ ${f} == /* && -d ${D}${f} ]]; then
|
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set -- "${D}${f}" "${@}"
|
|
fi
|
|
done < <("${PYTHON}" -c 'import sys; print("\0".join(sys.path))')
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|
|
debug-print "${FUNCNAME}: using sys.path: ${*/%/;}"
|
|
fi
|
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|
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local d
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for d; do
|
|
# make sure to get a nice path without //
|
|
local instpath=${d#${D}}
|
|
instpath=/${instpath##/}
|
|
|
|
case "${EPYTHON}" in
|
|
python*)
|
|
"${PYTHON}" -m compileall -q -f -d "${instpath}" "${d}"
|
|
"${PYTHON}" -OO -m compileall -q -f -d "${instpath}" "${d}"
|
|
;;
|
|
*)
|
|
"${PYTHON}" -m compileall -q -f -d "${instpath}" "${@}"
|
|
;;
|
|
esac
|
|
done
|
|
}
|
|
|
|
# @ECLASS-VARIABLE: python_scriptroot
|
|
# @DEFAULT_UNSET
|
|
# @DESCRIPTION:
|
|
# The current script destination for python_doscript(). The path
|
|
# is relative to the installation root (${ED}).
|
|
#
|
|
# When unset, ${DESTTREE}/bin (/usr/bin by default) will be used.
|
|
#
|
|
# Can be set indirectly through the python_scriptinto() function.
|
|
#
|
|
# Example:
|
|
# @CODE
|
|
# src_install() {
|
|
# local python_scriptroot=${GAMES_BINDIR}
|
|
# python_foreach_impl python_doscript foo
|
|
# }
|
|
# @CODE
|
|
|
|
# @FUNCTION: python_scriptinto
|
|
# @USAGE: <new-path>
|
|
# @DESCRIPTION:
|
|
# Set the current scriptroot. The new value will be stored
|
|
# in the 'python_scriptroot' environment variable. The new value need
|
|
# be relative to the installation root (${ED}).
|
|
#
|
|
# Alternatively, you can set the variable directly.
|
|
python_scriptinto() {
|
|
debug-print-function ${FUNCNAME} "${@}"
|
|
|
|
python_scriptroot=${1}
|
|
}
|
|
|
|
# @FUNCTION: python_doscript
|
|
# @USAGE: <files>...
|
|
# @DESCRIPTION:
|
|
# Install the given scripts into current python_scriptroot,
|
|
# for the current Python implementation (${EPYTHON}).
|
|
#
|
|
# All specified files must start with a 'python' shebang. The shebang
|
|
# will be converted, the file will be renamed to be EPYTHON-suffixed
|
|
# and a wrapper will be installed in place of the original name.
|
|
#
|
|
# Example:
|
|
# @CODE
|
|
# src_install() {
|
|
# python_foreach_impl python_doscript ${PN}
|
|
# }
|
|
# @CODE
|
|
python_doscript() {
|
|
debug-print-function ${FUNCNAME} "${@}"
|
|
|
|
local f
|
|
for f; do
|
|
python_newscript "${f}" "${f##*/}"
|
|
done
|
|
}
|
|
|
|
# @FUNCTION: python_newscript
|
|
# @USAGE: <path> <new-name>
|
|
# @DESCRIPTION:
|
|
# Install the given script into current python_scriptroot
|
|
# for the current Python implementation (${EPYTHON}), and name it
|
|
# <new-name>.
|
|
#
|
|
# The file must start with a 'python' shebang. The shebang will be
|
|
# converted, the file will be renamed to be EPYTHON-suffixed
|
|
# and a wrapper will be installed in place of the <new-name>.
|
|
#
|
|
# Example:
|
|
# @CODE
|
|
# src_install() {
|
|
# python_foreach_impl python_newscript foo.py foo
|
|
# }
|
|
# @CODE
|
|
python_newscript() {
|
|
debug-print-function ${FUNCNAME} "${@}"
|
|
|
|
[[ ${EPYTHON} ]] || die 'No Python implementation set (EPYTHON is null).'
|
|
[[ ${#} -eq 2 ]] || die "Usage: ${FUNCNAME} <path> <new-name>"
|
|
|
|
local d=${python_scriptroot:-${DESTTREE}/bin}
|
|
local INSDESTTREE INSOPTIONS
|
|
|
|
insinto "${d}"
|
|
insopts -m755
|
|
|
|
local f=${1}
|
|
local barefn=${2}
|
|
|
|
local newfn=${barefn}-${EPYTHON}
|
|
|
|
debug-print "${FUNCNAME}: ${f} -> ${d}/${newfn}"
|
|
newins "${f}" "${newfn}" || die
|
|
_python_rewrite_shebang "${ED}/${d}/${newfn}"
|
|
|
|
# install the wrapper
|
|
_python_ln_rel "${ED}"/usr/bin/python-exec "${ED}/${d}/${barefn}" || die
|
|
}
|
|
|
|
# @ECLASS-VARIABLE: python_moduleroot
|
|
# @DEFAULT_UNSET
|
|
# @DESCRIPTION:
|
|
# The current module root for python_domodule(). The path can be either
|
|
# an absolute system path (it must start with a slash, and ${ED} will be
|
|
# prepended to it) or relative to the implementation's site-packages directory
|
|
# (then it must start with a non-slash character).
|
|
#
|
|
# When unset, the modules will be installed in the site-packages root.
|
|
#
|
|
# Can be set indirectly through the python_moduleinto() function.
|
|
#
|
|
# Example:
|
|
# @CODE
|
|
# src_install() {
|
|
# local python_moduleroot=bar
|
|
# # installs ${PYTHON_SITEDIR}/bar/baz.py
|
|
# python_foreach_impl python_domodule baz.py
|
|
# }
|
|
# @CODE
|
|
|
|
# @FUNCTION: python_moduleinto
|
|
# @USAGE: <new-path>
|
|
# @DESCRIPTION:
|
|
# Set the current module root. The new value will be stored
|
|
# in the 'python_moduleroot' environment variable. The new value need
|
|
# be relative to the site-packages root.
|
|
#
|
|
# Alternatively, you can set the variable directly.
|
|
python_moduleinto() {
|
|
debug-print-function ${FUNCNAME} "${@}"
|
|
|
|
python_moduleroot=${1}
|
|
}
|
|
|
|
# @FUNCTION: python_domodule
|
|
# @USAGE: <files>...
|
|
# @DESCRIPTION:
|
|
# Install the given modules (or packages) into the current
|
|
# python_moduleroot. The list can mention both modules (files)
|
|
# and packages (directories). All listed files will be installed
|
|
# for all enabled implementations, and compiled afterwards.
|
|
#
|
|
# Example:
|
|
# @CODE
|
|
# src_install() {
|
|
# # (${PN} being a directory)
|
|
# python_foreach_impl python_domodule ${PN}
|
|
# }
|
|
# @CODE
|
|
python_domodule() {
|
|
debug-print-function ${FUNCNAME} "${@}"
|
|
|
|
[[ ${EPYTHON} ]] || die 'No Python implementation set (EPYTHON is null).'
|
|
|
|
local d
|
|
if [[ ${python_moduleroot} == /* ]]; then
|
|
# absolute path
|
|
d=${python_moduleroot}
|
|
else
|
|
# relative to site-packages
|
|
local PYTHON_SITEDIR=${PYTHON_SITEDIR}
|
|
[[ ${PYTHON_SITEDIR} ]] || python_export PYTHON_SITEDIR
|
|
|
|
d=${PYTHON_SITEDIR#${EPREFIX}}/${python_moduleroot}
|
|
fi
|
|
|
|
local INSDESTTREE
|
|
|
|
insinto "${d}"
|
|
doins -r "${@}" || die
|
|
|
|
python_optimize "${ED}/${d}"
|
|
}
|
|
|
|
# @FUNCTION: python_doheader
|
|
# @USAGE: <files>...
|
|
# @DESCRIPTION:
|
|
# Install the given headers into the implementation-specific include
|
|
# directory. This function is unconditionally recursive, i.e. you can
|
|
# pass directories instead of files.
|
|
#
|
|
# Example:
|
|
# @CODE
|
|
# src_install() {
|
|
# python_foreach_impl python_doheader foo.h bar.h
|
|
# }
|
|
# @CODE
|
|
python_doheader() {
|
|
debug-print-function ${FUNCNAME} "${@}"
|
|
|
|
[[ ${EPYTHON} ]] || die 'No Python implementation set (EPYTHON is null).'
|
|
|
|
local d PYTHON_INCLUDEDIR=${PYTHON_INCLUDEDIR}
|
|
[[ ${PYTHON_INCLUDEDIR} ]] || python_export PYTHON_INCLUDEDIR
|
|
|
|
d=${PYTHON_INCLUDEDIR#${EPREFIX}}
|
|
|
|
local INSDESTTREE
|
|
|
|
insinto "${d}"
|
|
doins -r "${@}" || die
|
|
}
|
|
|
|
_PYTHON_UTILS_R1=1
|
|
fi
|