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authorMichael Orlitzky <mjo@gentoo.org>2020-05-13 16:38:14 -0400
committerMichael Orlitzky <mjo@gentoo.org>2020-05-13 16:51:19 -0400
commit6fe375dda59821206f8af5da92369908184568b1 (patch)
tree32ca6bb98778bd9aa8f5c1308f7a158a3f519505 /dev-python/cvxopt/cvxopt-1.2.5-r1.ebuild
parentdev-util/buildbot-worker: Set correct permissions in pkg_config (diff)
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dev-python/cvxopt: new revision to cleanup and re-messup some things.
The original purpose of this revision was to refactor the three, similar, convoluted pipelines that are used to parse the output from pkg-config and populate cvxopt's FOO_LIB, FOO_LIB_DIR, and FOO_INC_DIR variables. That was fairly easy: the code to strip out "pthread" and "m" from `pkg-config --libs-only-l` never worked, so I've dropped it. After that, the remaining three pipelines all did essentially the same thing and were combined into a single function that is still large but now only because it is documented. Having solved that problem, I made things a bit messy again. I discovered that most of these variables can be passed an empty string, resulting in a command line with "empty" arguments like "-L -L/path/to/wherever" and GCC will accept that. What it won't accept is the empty "-I" arguments corresponding to the INC_DIR variables. Can we leave those unset if pkg-config returns the empty string? No! Because if we do that, then cvxopt will guess the wrong location (outside of EPREFIX) and attempt to use that. So I added some code to prepopulate those variables with the right location, and only append to them when pkg-config gives us something to append. I think this works better, but I guess we'll see. I've opened an upstream issue about the empty string problem in these variables. If they can make the "API" a bit nicer in the future, a lot of the new ugliness can be reverted. Package-Manager: Portage-2.3.99, Repoman-2.3.22 Signed-off-by: Michael Orlitzky <mjo@gentoo.org>
Diffstat (limited to 'dev-python/cvxopt/cvxopt-1.2.5-r1.ebuild')
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+# Copyright 1999-2020 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=7
+
+PYTHON_COMPAT=( python3_6 python3_7 python3_8 )
+
+inherit distutils-r1 toolchain-funcs
+
+DESCRIPTION="Python package for convex optimization"
+HOMEPAGE="http://cvxopt.org/ https://github.com/cvxopt/cvxopt"
+SRC_URI="https://github.com/${PN}/${PN}/archive/${PV}.tar.gz -> ${P}.tar.gz"
+
+LICENSE="GPL-3"
+SLOT="0"
+KEYWORDS="~amd64 ~x86 ~amd64-linux ~x86-linux"
+IUSE="doc +dsdp examples fftw +glpk gsl test"
+RESTRICT="!test? ( test )"
+
+DEPEND="
+ virtual/blas
+ virtual/lapack
+ sci-libs/amd:0=
+ sci-libs/cholmod:0=
+ sci-libs/colamd:0=
+ sci-libs/suitesparseconfig:0=
+ sci-libs/umfpack:0=
+ dsdp? ( sci-libs/dsdp:0= )
+ fftw? ( sci-libs/fftw:3.0= )
+ glpk? ( >=sci-mathematics/glpk-4.49:0= )
+ gsl? ( sci-libs/gsl:0= )"
+
+RDEPEND="${DEPEND}"
+
+BDEPEND="virtual/pkgconfig
+ doc? ( dev-python/sphinx )
+ test? ( ${RDEPEND} dev-python/nose[${PYTHON_USEDEP}] )"
+
+# The BLAS_LIB and LAPACK_LIB variables (among others) in cvxopt's
+# setup.py are passed in as colon-delimited strings. So, for example,
+# if your blas "l" flags are "-lblas -lcblas", then cvxopt wants
+# "blas;cblas" for BLAS_LIB.
+#
+# The following function takes a flag type ("l", "L", or "I") as its
+# first argument and a list of packages as its remaining arguments. It
+# outputs a list of libraries, library paths, or include paths,
+# respectively, for the given packages, retrieved using pkg-config and
+# deduplicated, in the appropriate format.
+#
+cvxopt_output() {
+ local FLAGNAME="${1}"
+ shift
+ local PACKAGES="${@}"
+
+ local PKGCONFIG_MODE
+ case "${FLAGNAME}" in
+ l) PKGCONFIG_MODE="--libs-only-l";;
+ L) PKGCONFIG_MODE="--libs-only-L";;
+ I) PKGCONFIG_MODE="--cflags-only-I";;
+ *) echo "invalid flag name: ${FLAGNAME}"; exit 1;;
+ esac
+
+ local CVXOPT_OUTPUT=""
+ local PKGCONFIG_ITEM
+ for PKGCONFIG_ITEM in $($(tc-getPKG_CONFIG) ${PKGCONFIG_MODE} ${PACKAGES})
+ do
+ # First strip off the leading "-l", "-L", or "-I", and replace
+ # it with a semicolon...
+ PKGCONFIG_ITEM=";${PKGCONFIG_ITEM#-${FLAGNAME}}"
+
+ # Now check to see if this element is already present in the
+ # list, and skip it if it is. This eliminates multiple entries
+ # from winding up in the list when multiple package arguments are
+ # passed to this function.
+ if [[ "${CVXOPT_OUTPUT}" != "${CVXOPT_OUTPUT%${PKGCONFIG_ITEM}}" ]]
+ then
+ # It was already the last entry in the list, so skip it.
+ continue
+ elif [[ "${CVXOPT_OUTPUT}" != "${CVXOPT_OUTPUT%${PKGCONFIG_ITEM};*}" ]]
+ then
+ # It was an earlier entry in the list. These two cases are
+ # separate to ensure that we can e.g. find ";m" at the end
+ # of the list, but that we don't find ";metis" in the process.
+ continue
+ fi
+
+ # It isn't in the list yet, so append it.
+ CVXOPT_OUTPUT+="${PKGCONFIG_ITEM}"
+ done
+
+ # Strip the leading ";" from ";foo;bar" before output.
+ echo "${CVXOPT_OUTPUT#;}"
+}
+
+python_prepare_all() {
+ # Mandatory dependencies.
+ export CVXOPT_BLAS_LIB="$(cvxopt_output l blas)"
+ export CVXOPT_BLAS_LIB_DIR="${EPREFIX}/usr/$(get_libdir);$(cvxopt_output L blas)"
+ export CVXOPT_LAPACK_LIB="$(cvxopt_output l lapack)"
+ export CVXOPT_SUITESPARSE_LIB_DIR="${EPREFIX}/usr/$(get_libdir);$(cvxopt_output L umfpack cholmod amd colamd suitesparseconfig)"
+
+ # Most of these CVXOPT_* variables can be blank or have "empty"
+ # entries and the resulting command-line with e.g. "-L -L/some/path"
+ # won't hurt anything. The INC_DIR variables, however, cause
+ # problems, because at least gcc doesn't like a bare "-I". We
+ # pre-populate these variable with something safe so that setup.py
+ # doesn't look in the wrong place if pkg-config doesn't return any
+ # extra -I directories. This is
+ #
+ # https://github.com/cvxopt/cvxopt/issues/167
+ #
+ CVXOPT_SUITESPARSE_INC_DIR="${EPREFIX}/usr/include"
+ local SUITESPARSE_LOCAL_INCS="$(cvxopt_output I umfpack cholmod amd colamd suitesparseconfig)"
+ if [[ -n "${SUITESPARSE_LOCAL_INCS}" ]]; then
+ CVXOPT_SUITESPARSE_INC_DIR+=";${SUITESPARSE_LOCAL_INCS}"
+ fi
+ export CVXOPT_SUITESPARSE_INC_DIR
+
+ # optional dependencies
+ if use dsdp; then
+ # no pkg-config file at the moment
+ export CVXOPT_BUILD_DSDP=1
+ export CVXOPT_DSDP_LIB_DIR="${EPREFIX}/usr/$(get_libdir)"
+ export CVXOPT_DSDP_INC_DIR="${EPREFIX}/usr/include"
+ fi
+
+ if use fftw; then
+ export CVXOPT_BUILD_FFTW=1
+ export CVXOPT_FFTW_LIB_DIR="${EPREFIX}/usr/$(get_libdir);$(cvxopt_output L fftw3)"
+ CVXOPT_FFTW_INC_DIR="${EPREFIX}/usr/include"
+ FFTW_LOCAL_INCS="$(cvxopt_output I fftw3)"
+ if [[ -n "${FFTW_LOCAL_INCS}" ]]; then
+ CVXOPT_FFTW_INC_DIR+=";${FFTW_LOCAL_INCS}"
+ fi
+ export CVXOPT_FFTW_INC_DIR
+ fi
+
+ if use glpk; then
+ # no pkg-config file at the moment
+ export CVXOPT_BUILD_GLPK=1
+ export CVXOPT_GLPK_LIB_DIR="${EPREFIX}/usr/$(get_libdir)"
+ export CVXOPT_GLPK_INC_DIR="${EPREFIX}/usr/include"
+ fi
+
+ if use gsl; then
+ export CVXOPT_BUILD_GSL=1
+ export CVXOPT_GSL_LIB_DIR="${EPREFIX}/usr/$(get_libdir);$(cvxopt_output L gsl)"
+ CVXOPT_GSL_INC_DIR="${EPREFIX}/usr/include"
+ GSL_LOCAL_INCS="$(cvxopt_output I gsl)"
+ if [[ -n "${GSL_LOCAL_INCS}" ]]; then
+ CVXOPT_GSL_INC_DIR+=";${GSL_LOCAL_INCS}"
+ fi
+ export CVXOPT_GSL_INC_DIR
+ fi
+
+ distutils-r1_python_prepare_all
+}
+
+python_compile_all() {
+ use doc && VARTEXFONTS="${T}/fonts" emake -C doc -B html
+}
+
+python_test() {
+ PYTHONPATH="${BUILD_DIR}"/lib nosetests -v || die
+}
+
+python_install_all() {
+ use doc && HTML_DOCS=( doc/build/html/. )
+ distutils-r1_python_install_all
+ if use examples; then
+ dodoc -r examples
+ docompress -x "/usr/share/doc/${PF}/examples"
+ fi
+}