From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from lists.gentoo.org (pigeon.gentoo.org [208.92.234.80]) by finch.gentoo.org (Postfix) with ESMTP id AA1CD138010 for ; Wed, 12 Sep 2012 20:25:59 +0000 (UTC) Received: from pigeon.gentoo.org (localhost [127.0.0.1]) by pigeon.gentoo.org (Postfix) with SMTP id C0980E0687; Wed, 12 Sep 2012 20:25:50 +0000 (UTC) Received: from smtp.gentoo.org (smtp.gentoo.org [140.211.166.183]) by pigeon.gentoo.org (Postfix) with ESMTP id 72CC0E0683 for ; Wed, 12 Sep 2012 20:24:53 +0000 (UTC) Received: from [192.168.1.43] (pool-71-246-221-8.washdc.fios.verizon.net [71.246.221.8]) (using TLSv1 with cipher ECDHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) (Authenticated sender: tetromino) by smtp.gentoo.org (Postfix) with ESMTPSA id 62C9B33C5AF for ; Wed, 12 Sep 2012 20:24:52 +0000 (UTC) Message-ID: <1347481490.9013.50.camel@rook> Subject: Re: [gentoo-dev] [RFC] new vala.eclass From: Alexandre Rostovtsev To: gentoo-dev@lists.gentoo.org Date: Wed, 12 Sep 2012 16:24:50 -0400 In-Reply-To: <1347242947.9013.45.camel@rook> References: <1345910966.9829.9.camel@rook> <1347242947.9013.45.camel@rook> Content-Type: text/plain; charset="UTF-8" X-Mailer: Evolution 3.4.4 Precedence: bulk List-Post: List-Help: List-Unsubscribe: List-Subscribe: List-Id: Gentoo Linux mail X-BeenThere: gentoo-dev@lists.gentoo.org Reply-to: gentoo-dev@lists.gentoo.org Mime-Version: 1.0 Content-Transfer-Encoding: 7bit X-Archives-Salt: 19d2a884-f22b-4e5d-81e9-1856d6a86fbe X-Archives-Hash: 349b41194d2a03fd1e4bfafd030eb9bb On Sun, 2012-09-09 at 22:09 -0400, Alexandre Rostovtsev wrote: > Revised proposal with suggestions from Nirbheek. VALA_API_VERSION has > been split into max and min to make it easier for packages to depend on > a range of vala slots. > > # Copyright 1999-2012 Gentoo Foundation > # Distributed under the terms of the GNU General Public License v2 > # $Header: $ > > # @ECLASS: vala.eclass > # @MAINTAINER: > # gnome@gentoo.org > # @AUTHOR: > # Alexandre Rostovtsev > # @BLURB: Sets up the environment for using a specific version of vala. > # @DESCRIPTION: > # This eclass sets up commonly used environment variables for using a specific > # version of dev-lang/vala to configure and build a package. It is needed for > # packages whose build systems assume the existence of certain unversioned vala > # executables, pkgconfig files, etc., which Gentoo does not provide. > # > # This eclass provides one phase function: src_prepare. > > inherit multilib > > case "${EAPI:-0}" in > 0) die "EAPI=0 is not supported" ;; > 1) ;; > *) EXPORT_FUNCTIONS src_prepare ;; > esac > > # @ECLASS-VARIABLE: VALA_MIN_API_VERSION > # @DEFAULT_UNSET > # @DESCRIPTION: > # Minimum vala API version (e.g. 0.16). > VALA_MIN_API_VERSION=${VALA_MIN_API_VERSION:-0.10} > > # @ECLASS-VARIABLE: VALA_MAX_API_VERSION > # @DEFAULT_UNSET > # @DESCRIPTION: > # Maximum vala API version (e.g. 0.18). > VALA_MAX_API_VERSION=${VALA_MAX_API_VERSION:-0.18} > > # @ECLASS-VARIABLE: VALA_USE_DEPEND > # @DEFAULT_UNSET > # @DESCRIPTION: > # USE dependencies that vala must be built with (e.g. vapigen). > > # @FUNCTION: vala_api_versions > # @DESCRIPTION: > # Outputs a list of vala API versions from VALA_MAX_API_VERSION down to > # VALA_MIN_API_VERSION. > vala_api_versions() { > eval "echo 0.{${VALA_MAX_API_VERSION#0.}..${VALA_MIN_API_VERSION#0.}..2}" > } > > # @FUNCTION: vala_depend > # @DESCRIPTION: > # Outputs a ||-dependency string on vala from VALA_MAX_API_VERSION down to > # VALA_MIN_API_VERSION > vala_depend() { > local u v versions=$(vala_api_versions) > [[ ${VALA_USE_DEPEND} ]] && u="[${VALA_USE_DEPEND}]" > > echo -n "|| (" > for v in ${versions}; do > echo -n " dev-lang/vala:${v}${u}" > done > echo " )" > } > > # @FUNCTION: vala_best_api_version > # @DESCRIPTION: > # Returns the highest installed vala API version satisfying > # VALA_MAX_API_VERSION, VALA_MIN_API_VERSION, and VALA_USE_DEPEND. > vala_best_api_version() { > local u v > [[ ${VALA_USE_DEPEND} ]] && u="[${VALA_USE_DEPEND}]" > for v in $(vala_api_versions); do > has_version "dev-lang/vala:${v}${u}" && echo "${v}" && return > done > } > > # @FUNCTION: vala_src_prepare > # @USAGE: [--vala-api-version api_version] > # @DESCRIPTION: > # Sets up the environment variables and pkgconfig files for the > # specified API version, or, if no version is specified, for the > # highest installed vala API version satisfying > # VALA_MIN_API_VERSION, VALA_MIN_API_VERSION, and VALA_USE_DEPEND. > vala_src_prepare() { > local p d valafoo version > > if [[ $1 = "--vala-api-version" ]]; then > version=$2 > [[ ${version} ]] || die "'--vala-api-version' option requires API version parameter." > else > version=$(vala_best_api_version) > [[ ${version} ]] || die "No installed vala in $(vala_depend)" > fi > > export VALAC=$(type -P valac-${version}) > > valafoo=$(type -P vala-gen-introspect-${VALA_API_VERSION}) > [[ ${valafoo} ]] && export VALA_GEN_INTROSPECT=$(type -P vala-gen-introspect-${version}) > > valafoo=$(type -P vapigen-${VALA_API_VERSION}) > [[ ${valafoo} ]] && export VAPIGEN="${valafoo}" > > valafoo="${EPREFIX}/usr/share/vala/Makefile.vapigen" > [[ -e ${valafoo} ]] && export VAPIGEN_MAKEFILE="${valafoo}" > > export VAPIGEN_VAPIDIR="${EPREFIX}/usr/share/vala/vapi" > > mkdir -p "${T}/pkgconfig" || die "mkdir failed" > for p in libvala vapigen; do > for d in "${EPREFIX}/usr/$(get_libdir)/pkgconfig" "${EPREFIX}/usr/share/pkgconfig"; do > if [[ -e ${d}/${p}-${VALA_API_VERSION}.pc ]]; then > ln -s "${d}/${p}-${VALA_API_VERSION}.pc" "${T}/pkgconfig/${p}.pc" || die "ln failed" > break > fi > done > done > : ${PKG_CONFIG_PATH:="${EPREFIX}/usr/$(get_libdir)/pkgconfig:${EPREFIX}/usr/share/pkgconfig"} > export PKG_CONFIG_PATH="${T}/pkgconfig:${PKG_CONFIG_PATH}" > } Now in portage.