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 09B80138010 for ; Mon, 10 Sep 2012 02:10:28 +0000 (UTC) Received: from pigeon.gentoo.org (localhost [127.0.0.1]) by pigeon.gentoo.org (Postfix) with SMTP id 61AEF21C028; Mon, 10 Sep 2012 02:10:18 +0000 (UTC) Received: from smtp.gentoo.org (smtp.gentoo.org [140.211.166.183]) by pigeon.gentoo.org (Postfix) with ESMTP id E540021C01A for ; Mon, 10 Sep 2012 02:09:09 +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 3558033C3FB for ; Mon, 10 Sep 2012 02:09:09 +0000 (UTC) Message-ID: <1347242947.9013.45.camel@rook> Subject: Re: [gentoo-dev] [RFC] new vala.eclass From: Alexandre Rostovtsev To: gentoo-dev@lists.gentoo.org Date: Sun, 09 Sep 2012 22:09:07 -0400 In-Reply-To: <1345910966.9829.9.camel@rook> References: <1345910966.9829.9.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: d7f09e37-8e36-4687-8949-ebba5e2957f6 X-Archives-Hash: d9cb2c0325e54790c19f84ab33799f95 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}" }