[gentoo-commits] proj/sci:master commit in: eclass/

["Andreas Hüttel" <dilfridge@gentoo.org>]

commit:     c71472052ce0ba88995ec5dcde5fce9d498da19c
Author:     Andreas K. Huettel (dilfridge) <dilfridge <AT> gentoo <DOT> org>
AuthorDate: Sun Jul 17 16:08:28 2011 +0000
Commit:     Andreas Hüttel <dilfridge <AT> gentoo <DOT> org>
CommitDate: Sun Jul 17 16:08:28 2011 +0000
URL:        http://git.overlays.gentoo.org/gitweb/?p=proj/sci.git;a=commit;h=c7147205

Copied eclass from main tree

---
 eclass/cmake-utils.eclass |  467 +++++++++++++++++++++++++++++++++++++++++++++
 1 files changed, 467 insertions(+), 0 deletions(-)

diff --git a/eclass/cmake-utils.eclass b/eclass/cmake-utils.eclass
new file mode 100644
index 0000000..6a58226
--- /dev/null
+++ b/eclass/cmake-utils.eclass
@@ -0,0 +1,467 @@
+# Copyright 1999-2010 Gentoo Foundation
+# Distributed under the terms of the GNU General Public License v2
+# $Header: /var/cvsroot/gentoo-x86/eclass/cmake-utils.eclass,v 1.69 2011/06/27 21:11:57 abcd Exp $
+
+# @ECLASS: cmake-utils.eclass
+# @MAINTAINER:
+# kde@gentoo.org
+#
+# @CODE
+# Tomáš Chvátal <scarabeus@gentoo.org>
+# Maciej Mrozowski <reavertm@gentoo.org>
+# (undisclosed contributors)
+# Original author: Zephyrus (zephyrus@mirach.it)
+# @CODE
+# @BLURB: common ebuild functions for cmake-based packages
+# @DESCRIPTION:
+# The cmake-utils eclass is base.eclass(5) wrapper that makes creating ebuilds for
+# cmake-based packages much easier.
+# It provides all inherited features (DOCS, HTML_DOCS, PATCHES) along with out-of-source
+# builds (default), in-source builds and an implementation of the well-known use_enable
+# and use_with functions for CMake.
+
+# @ECLASS-VARIABLE: WANT_CMAKE
+# @DESCRIPTION:
+# Specify if cmake-utils eclass should depend on cmake optionaly or not.
+# This is usefull when only part of aplication is using cmake build system.
+# Valid values are: always [default], optional (where the value is the useflag
+# used for optionality)
+WANT_CMAKE="${WANT_CMAKE:-always}"
+
+# @ECLASS-VARIABLE: CMAKE_MIN_VERSION
+# @DESCRIPTION:
+# Specify the minimum required CMake version.  Default is 2.8.1
+CMAKE_MIN_VERSION="${CMAKE_MIN_VERSION:-2.8.1}"
+
+CMAKEDEPEND=""
+case ${WANT_CMAKE} in
+	always)
+		;;
+	*)
+		IUSE+=" ${WANT_CMAKE}"
+		CMAKEDEPEND+="${WANT_CMAKE}? ( "
+		;;
+esac
+inherit toolchain-funcs multilib flag-o-matic base
+
+CMAKE_EXPF="src_compile src_test src_install"
+case ${EAPI:-0} in
+	4|3|2) CMAKE_EXPF+=" src_configure" ;;
+	1|0) ;;
+	*) die "Unknown EAPI, Bug eclass maintainers." ;;
+esac
+EXPORT_FUNCTIONS ${CMAKE_EXPF}
+
+: ${DESCRIPTION:="Based on the ${ECLASS} eclass"}
+
+if [[ ${PN} != cmake ]]; then
+	CMAKEDEPEND+=">=dev-util/cmake-${CMAKE_MIN_VERSION}"
+fi
+
+CMAKEDEPEND+=" userland_GNU? ( >=sys-apps/findutils-4.4.0 )"
+
+[[ ${WANT_CMAKE} = always ]] || CMAKEDEPEND+=" )"
+
+DEPEND="${CMAKEDEPEND}"
+unset CMAKEDEPEND
+
+# Internal functions used by cmake-utils_use_*
+_use_me_now() {
+	debug-print-function ${FUNCNAME} "$@"
+
+	local uper capitalised x
+	[[ -z $2 ]] && die "cmake-utils_use-$1 <USE flag> [<flag name>]"
+	if [[ ! -z $3 ]]; then
+		# user specified the use name so use it
+		echo "-D$1$3=$(use $2 && echo ON || echo OFF)"
+	else
+		# use all various most used combinations
+		uper=$(echo ${2} | tr '[:lower:]' '[:upper:]')
+		capitalised=$(echo ${2} | sed 's/\<\(.\)\([^ ]*\)/\u\1\L\2/g')
+		for x in $2 $uper $capitalised; do
+			echo "-D$1$x=$(use $2 && echo ON || echo OFF) "
+		done
+	fi
+}
+_use_me_now_inverted() {
+	debug-print-function ${FUNCNAME} "$@"
+
+	local uper capitalised x
+	[[ -z $2 ]] && die "cmake-utils_use-$1 <USE flag> [<flag name>]"
+	if [[ ! -z $3 ]]; then
+		# user specified the use name so use it
+		echo "-D$1$3=$(use $2 && echo OFF || echo ON)"
+	else
+		# use all various most used combinations
+		uper=$(echo ${2} | tr '[:lower:]' '[:upper:]')
+		capitalised=$(echo ${2} | sed 's/\<\(.\)\([^ ]*\)/\u\1\L\2/g')
+		for x in $2 $uper $capitalised; do
+			echo "-D$1$x=$(use $2 && echo OFF || echo ON) "
+		done
+	fi
+}
+
+# @ECLASS-VARIABLE: CMAKE_BUILD_DIR
+# @DESCRIPTION:
+# Build directory where all cmake processed files should be generated.
+# For in-source build it's fixed to ${CMAKE_USE_DIR}.
+# For out-of-source build it can be overriden, by default it uses
+# ${WORKDIR}/${P}_build.
+
+# @ECLASS-VARIABLE: CMAKE_BUILD_TYPE
+# @DESCRIPTION:
+# Set to override default CMAKE_BUILD_TYPE. Only useful for packages
+# known to make use of "if (CMAKE_BUILD_TYPE MATCHES xxx)".
+# If about to be set - needs to be set before invoking cmake-utils_src_configure.
+# You usualy do *NOT* want nor need to set it as it pulls CMake default build-type
+# specific compiler flags overriding make.conf.
+: ${CMAKE_BUILD_TYPE:=Gentoo}
+
+# @ECLASS-VARIABLE: CMAKE_IN_SOURCE_BUILD
+# @DESCRIPTION:
+# Set to enable in-source build.
+
+# @ECLASS-VARIABLE: CMAKE_USE_DIR
+# @DESCRIPTION:
+# Sets the directory where we are working with cmake.
+# For example when application uses autotools and only one
+# plugin needs to be done by cmake.
+# By default it uses ${S}.
+
+# @ECLASS-VARIABLE: CMAKE_VERBOSE
+# @DESCRIPTION:
+# Set to enable verbose messages during compilation.
+
+# @ECLASS-VARIABLE: PREFIX
+# @DESCRIPTION:
+# Eclass respects PREFIX variable, though it's not recommended way to set
+# install/lib/bin prefixes.
+# Use -DCMAKE_INSTALL_PREFIX=... CMake variable instead.
+
+# @ECLASS-VARIABLE: CMAKE_BINARY
+# @DESCRIPTION:
+# Eclass can use different cmake binary than the one provided in by system.
+: ${CMAKE_BINARY:=cmake}
+
+# Determine using IN or OUT source build
+_check_build_dir() {
+	: ${CMAKE_USE_DIR:=${S}}
+	if [[ -n ${CMAKE_IN_SOURCE_BUILD} ]]; then
+		# we build in source dir
+		CMAKE_BUILD_DIR="${CMAKE_USE_DIR}"
+	else
+		: ${CMAKE_BUILD_DIR:=${WORKDIR}/${P}_build}
+	fi
+	echo ">>> Working in BUILD_DIR: \"$CMAKE_BUILD_DIR\""
+}
+# @FUNCTION: cmake-utils_use_with
+# @USAGE: <USE flag> [flag name]
+# @DESCRIPTION:
+# Based on use_with. See ebuild(5).
+#
+# `cmake-utils_use_with foo FOO` echoes -DWITH_FOO=ON if foo is enabled
+# and -DWITH_FOO=OFF if it is disabled.
+cmake-utils_use_with() { _use_me_now WITH_ "$@" ; }
+
+# @FUNCTION: cmake-utils_use_enable
+# @USAGE: <USE flag> [flag name]
+# @DESCRIPTION:
+# Based on use_enable. See ebuild(5).
+#
+# `cmake-utils_use_enable foo FOO` echoes -DENABLE_FOO=ON if foo is enabled
+# and -DENABLE_FOO=OFF if it is disabled.
+cmake-utils_use_enable() { _use_me_now ENABLE_ "$@" ; }
+
+# @FUNCTION: cmake-utils_use_disable
+# @USAGE: <USE flag> [flag name]
+# @DESCRIPTION:
+# Based on inversion of use_enable. See ebuild(5).
+#
+# `cmake-utils_use_enable foo FOO` echoes -DDISABLE_FOO=OFF if foo is enabled
+# and -DDISABLE_FOO=ON if it is disabled.
+cmake-utils_use_disable() { _use_me_now_inverted DISABLE_ "$@" ; }
+
+# @FUNCTION: cmake-utils_use_no
+# @USAGE: <USE flag> [flag name]
+# @DESCRIPTION:
+# Based on use_disable. See ebuild(5).
+#
+# `cmake-utils_use_no foo FOO` echoes -DNO_FOO=OFF if foo is enabled
+# and -DNO_FOO=ON if it is disabled.
+cmake-utils_use_no() { _use_me_now_inverted NO_ "$@" ; }
+
+# @FUNCTION: cmake-utils_use_want
+# @USAGE: <USE flag> [flag name]
+# @DESCRIPTION:
+# Based on use_enable. See ebuild(5).
+#
+# `cmake-utils_use_want foo FOO` echoes -DWANT_FOO=ON if foo is enabled
+# and -DWANT_FOO=OFF if it is disabled.
+cmake-utils_use_want() { _use_me_now WANT_ "$@" ; }
+
+# @FUNCTION: cmake-utils_use_build
+# @USAGE: <USE flag> [flag name]
+# @DESCRIPTION:
+# Based on use_enable. See ebuild(5).
+#
+# `cmake-utils_use_build foo FOO` echoes -DBUILD_FOO=ON if foo is enabled
+# and -DBUILD_FOO=OFF if it is disabled.
+cmake-utils_use_build() { _use_me_now BUILD_ "$@" ; }
+
+# @FUNCTION: cmake-utils_use_has
+# @USAGE: <USE flag> [flag name]
+# @DESCRIPTION:
+# Based on use_enable. See ebuild(5).
+#
+# `cmake-utils_use_has foo FOO` echoes -DHAVE_FOO=ON if foo is enabled
+# and -DHAVE_FOO=OFF if it is disabled.
+cmake-utils_use_has() { _use_me_now HAVE_ "$@" ; }
+
+# @FUNCTION: cmake-utils_use_use
+# @USAGE: <USE flag> [flag name]
+# @DESCRIPTION:
+# Based on use_enable. See ebuild(5).
+#
+# `cmake-utils_use_use foo FOO` echoes -DUSE_FOO=ON if foo is enabled
+# and -DUSE_FOO=OFF if it is disabled.
+cmake-utils_use_use() { _use_me_now USE_ "$@" ; }
+
+# @FUNCTION: cmake-utils_use
+# @USAGE: <USE flag> [flag name]
+# @DESCRIPTION:
+# Based on use_enable. See ebuild(5).
+#
+# `cmake-utils_use foo FOO` echoes -DFOO=ON if foo is enabled
+# and -DFOO=OFF if it is disabled.
+cmake-utils_use() { _use_me_now "" "$@" ; }
+
+# Internal function for modifying hardcoded definitions.
+# Removes dangerous definitions that override Gentoo settings.
+_modify-cmakelists() {
+	debug-print-function ${FUNCNAME} "$@"
+
+	# Only edit the files once
+	grep -qs "<<< Gentoo configuration >>>" CMakeLists.txt && return 0
+
+	# Comment out all set (<some_should_be_user_defined_variable> value)
+	# TODO Add QA checker - inform when variable being checked for below is set in CMakeLists.txt
+	find "${CMAKE_USE_DIR}" -name CMakeLists.txt \
+		-exec sed -i -e '/^[[:space:]]*[sS][eE][tT][[:space:]]*([[:space:]]*CMAKE_BUILD_TYPE.*)/{s/^/#IGNORE /g}' {} + \
+		-exec sed -i -e '/^[[:space:]]*[sS][eE][tT][[:space:]]*([[:space:]]*CMAKE_COLOR_MAKEFILE.*)/{s/^/#IGNORE /g}' {} + \
+		-exec sed -i -e '/^[[:space:]]*[sS][eE][tT][[:space:]]*([[:space:]]*CMAKE_INSTALL_PREFIX.*)/{s/^/#IGNORE /g}' {} + \
+		-exec sed -i -e '/^[[:space:]]*[sS][eE][tT][[:space:]]*([[:space:]]*CMAKE_VERBOSE_MAKEFILE.*)/{s/^/#IGNORE /g}' {} + \
+		|| die "${LINENO}: failed to disable hardcoded settings"
+
+	# NOTE Append some useful summary here
+	cat >> "${CMAKE_USE_DIR}"/CMakeLists.txt <<- _EOF_
+
+		MESSAGE(STATUS "<<< Gentoo configuration >>>
+		Build type      \${CMAKE_BUILD_TYPE}
+		Install path    \${CMAKE_INSTALL_PREFIX}
+		Compiler flags:
+		C               \${CMAKE_C_FLAGS}
+		C++             \${CMAKE_CXX_FLAGS}
+		Linker flags:
+		Executable      \${CMAKE_EXE_LINKER_FLAGS}
+		Module          \${CMAKE_MODULE_LINKER_FLAGS}
+		Shared          \${CMAKE_SHARED_LINKER_FLAGS}\n")
+	_EOF_
+}
+
+enable_cmake-utils_src_configure() {
+	debug-print-function ${FUNCNAME} "$@"
+
+	_check_build_dir
+
+	# check if CMakeLists.txt exist and if no then die
+	if [[ ! -e ${CMAKE_USE_DIR}/CMakeLists.txt ]] ; then
+		eerror "Unable to locate CMakeLists.txt under:"
+		eerror "\"${CMAKE_USE_DIR}/CMakeLists.txt\""
+		eerror "Consider not inheriting the cmake eclass."
+		die "FATAL: Unable to find CMakeLists.txt"
+	fi
+
+	# Remove dangerous things.
+	_modify-cmakelists
+
+	# Fix xdg collision with sandbox
+	export XDG_CONFIG_HOME="${T}"
+
+	# @SEE CMAKE_BUILD_TYPE
+	if [[ ${CMAKE_BUILD_TYPE} = Gentoo ]]; then
+		# Handle release builds
+		if ! has debug ${IUSE//+} || ! use debug; then
+			append-cppflags -DNDEBUG
+		fi
+	fi
+
+	# Prepare Gentoo override rules (set valid compiler, append CPPFLAGS)
+	local build_rules=${T}/gentoo_rules.cmake
+	cat > "${build_rules}" <<- _EOF_
+		SET (CMAKE_C_COMPILER $(type -P $(tc-getCC)) CACHE FILEPATH "C compiler" FORCE)
+		SET (CMAKE_C_COMPILE_OBJECT "<CMAKE_C_COMPILER> <DEFINES> ${CPPFLAGS} <FLAGS> -o <OBJECT> -c <SOURCE>" CACHE STRING "C compile command" FORCE)
+		SET (CMAKE_CXX_COMPILER $(type -P $(tc-getCXX)) CACHE FILEPATH "C++ compiler" FORCE)
+		SET (CMAKE_CXX_COMPILE_OBJECT "<CMAKE_CXX_COMPILER> <DEFINES> ${CPPFLAGS} <FLAGS> -o <OBJECT> -c <SOURCE>" CACHE STRING "C++ compile command" FORCE)
+	_EOF_
+
+	if use prefix; then
+		cat >> "${build_rules}" <<- _EOF_
+			# in Prefix we need rpath and must ensure cmake gets our default linker path
+			# right ... except for Darwin hosts
+			IF (NOT APPLE)
+			SET (CMAKE_SKIP_RPATH OFF CACHE BOOL "" FORCE)
+			SET (CMAKE_PLATFORM_REQUIRED_RUNTIME_PATH "${EPREFIX}/usr/${CHOST}/lib/gcc;${EPREFIX}/usr/${CHOST}/lib;${EPREFIX}/usr/$(get_libdir);${EPREFIX}/$(get_libdir)"
+			CACHE STRING "" FORCE)
+
+			ELSE ()
+
+			SET(CMAKE_PREFIX_PATH "${EPREFIX}${PREFIX:-/usr}" CACHE STRING ""FORCE)
+			SET(CMAKE_SKIP_BUILD_RPATH OFF CACHE BOOL "" FORCE)
+			SET(CMAKE_SKIP_RPATH OFF CACHE BOOL "" FORCE)
+			SET(CMAKE_BUILD_WITH_INSTALL_RPATH TRUE CACHE BOOL "" FORCE) 
+			SET(CMAKE_INSTALL_RPATH "${EPREFIX}${PREFIX:-/usr}/lib;${EPREFIX}/usr/${CHOST}/lib/gcc;${EPREFIX}/usr/${CHOST}/lib;${EPREFIX}/usr/$(get_libdir);${EPREFIX}/$(get_libdir)" CACHE STRING "" FORCE)
+			SET(CMAKE_INSTALL_RPATH_USE_LINK_PATH TRUE CACHE BOOL "" FORCE)
+			SET(CMAKE_INSTALL_NAME_DIR "${EPREFIX}${PREFIX:-/usr}/lib" CACHE STRING "" FORCE)
+
+			ENDIF (NOT APPLE)
+		_EOF_
+	fi
+
+	# Common configure parameters (invariants)
+	local common_config=${T}/gentoo_common_config.cmake
+	local libdir=$(get_libdir)
+	cat > "${common_config}" <<- _EOF_
+		SET (LIB_SUFFIX ${libdir/lib} CACHE STRING "library path suffix" FORCE)
+		SET (CMAKE_INSTALL_LIBDIR ${libdir} CACHE PATH "Output directory for libraries")
+	_EOF_
+	[[ "${NOCOLOR}" = true || "${NOCOLOR}" = yes ]] && echo 'SET (CMAKE_COLOR_MAKEFILE OFF CACHE BOOL "pretty colors during make" FORCE)' >> "${common_config}"
+
+	# Convert mycmakeargs to an array, for backwards compatibility
+	# Make the array a local variable since <=portage-2.1.6.x does not
+	# support global arrays (see bug #297255).
+	if [[ $(declare -p mycmakeargs 2>&-) != "declare -a mycmakeargs="* ]]; then
+		local mycmakeargs_local=(${mycmakeargs})
+	else
+		local mycmakeargs_local=("${mycmakeargs[@]}")
+	fi
+
+	has "${EAPI:-0}" 0 1 2 && ! use prefix && EPREFIX=
+
+	# Common configure parameters (overridable)
+	# NOTE CMAKE_BUILD_TYPE can be only overriden via CMAKE_BUILD_TYPE eclass variable
+	# No -DCMAKE_BUILD_TYPE=xxx definitions will be in effect.
+	local cmakeargs=(
+		--no-warn-unused-cli
+		-C "${common_config}"
+		-DCMAKE_INSTALL_PREFIX="${EPREFIX}${PREFIX:-/usr}"
+		"${mycmakeargs_local[@]}"
+		-DCMAKE_BUILD_TYPE="${CMAKE_BUILD_TYPE}"
+		-DCMAKE_INSTALL_DO_STRIP=OFF
+		-DCMAKE_USER_MAKE_RULES_OVERRIDE="${build_rules}"
+		"${MYCMAKEARGS}"
+	)
+
+	mkdir -p "${CMAKE_BUILD_DIR}"
+	pushd "${CMAKE_BUILD_DIR}" > /dev/null
+	debug-print "${LINENO} ${ECLASS} ${FUNCNAME}: mycmakeargs is ${mycmakeargs_local[*]}"
+	echo "${CMAKE_BINARY}" "${cmakeargs[@]}" "${CMAKE_USE_DIR}"
+	"${CMAKE_BINARY}" "${cmakeargs[@]}" "${CMAKE_USE_DIR}" || die "cmake failed"
+	popd > /dev/null
+}
+
+enable_cmake-utils_src_compile() {
+	debug-print-function ${FUNCNAME} "$@"
+
+	has src_configure ${CMAKE_EXPF} || cmake-utils_src_configure
+	cmake-utils_src_make "$@"
+}
+
+# @FUNCTION: cmake-utils_src_make
+# @DESCRIPTION:
+# Function for building the package. Automatically detects the build type.
+# All arguments are passed to emake.
+cmake-utils_src_make() {
+	debug-print-function ${FUNCNAME} "$@"
+
+	_check_build_dir
+	pushd "${CMAKE_BUILD_DIR}" > /dev/null
+	# first check if Makefile exist otherwise die
+	[[ -e Makefile ]] || die "Makefile not found. Error during configure stage."
+	if [[ -n ${CMAKE_VERBOSE} ]]; then
+		emake VERBOSE=1 "$@" || die "Make failed!"
+	else
+		emake "$@" || die "Make failed!"
+	fi
+	popd > /dev/null
+}
+
+enable_cmake-utils_src_install() {
+	debug-print-function ${FUNCNAME} "$@"
+
+	_check_build_dir
+	pushd "${CMAKE_BUILD_DIR}" > /dev/null
+	base_src_install "$@"
+	popd > /dev/null
+
+	# Backward compatibility, for non-array variables
+	if [[ -n "${DOCS}" ]] && [[ "$(declare -p DOCS 2>/dev/null 2>&1)" != "declare -a"* ]]; then
+		dodoc ${DOCS} || die "dodoc failed"
+	fi
+	if [[ -n "${HTML_DOCS}" ]] && [[ "$(declare -p HTML_DOCS 2>/dev/null 2>&1)" != "declare -a"* ]]; then
+		dohtml -r ${HTML_DOCS} || die "dohtml failed"
+	fi
+}
+
+enable_cmake-utils_src_test() {
+	debug-print-function ${FUNCNAME} "$@"
+	local ctestargs
+
+	_check_build_dir
+	pushd "${CMAKE_BUILD_DIR}" > /dev/null
+	[[ -e CTestTestfile.cmake ]] || { echo "No tests found. Skipping."; return 0 ; }
+
+	[[ -n ${TEST_VERBOSE} ]] && ctestargs="--extra-verbose --output-on-failure"
+	ctest ${ctestargs} "$@" || die "Tests failed."
+	popd > /dev/null
+}
+
+# @FUNCTION: cmake-utils_src_configure
+# @DESCRIPTION:
+# General function for configuring with cmake. Default behaviour is to start an
+# out-of-source build.
+cmake-utils_src_configure() {
+	_execute_optionaly "src_configure" "$@"
+}
+
+# @FUNCTION: cmake-utils_src_compile
+# @DESCRIPTION:
+# General function for compiling with cmake. Default behaviour is to check for
+# EAPI and respectively to configure as well or just compile.
+# Automatically detects the build type. All arguments are passed to emake.
+cmake-utils_src_compile() {
+	_execute_optionaly "src_compile" "$@"
+}
+
+# @FUNCTION: cmake-utils_src_install
+# @DESCRIPTION:
+# Function for installing the package. Automatically detects the build type.
+cmake-utils_src_install() {
+	_execute_optionaly "src_install" "$@"
+}
+
+# @FUNCTION: cmake-utils_src_test
+# @DESCRIPTION:
+# Function for testing the package. Automatically detects the build type.
+cmake-utils_src_test() {
+	_execute_optionaly "src_test" "$@"
+}
+
+# Optionally executes phases based on WANT_CMAKE variable/USE flag.
+_execute_optionaly() {
+	local phase="$1" ; shift
+	if [[ ${WANT_CMAKE} = always ]]; then
+		enable_cmake-utils_${phase} "$@"
+	else
+		use ${WANT_CMAKE} && enable_cmake-utils_${phase} "$@"
+	fi
+}