Import eclasses that are copied verbatim from upstream Gentoo to chromiumos-overlay.

eclass/base.eclass

Index: eclass/base.eclass
diff --git a/eclass/base.eclass b/eclass/base.eclass
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+# Copyright 1999-2008 Gentoo Foundation
+# Distributed under the terms of the GNU General Public License v2
+# $Header: /var/cvsroot/gentoo-x86/eclass/base.eclass,v 1.53 2010/05/27 08:09:33 scarabeus Exp $
+
+# @ECLASS: base.eclass
+# @MAINTAINER:
+# QA Team <qa@gentoo.org>
+#
+# Original author Dan Armak <danarmak@gentoo.org>
+# @BLURB: The base eclass defines some default functions and variables.
+# @DESCRIPTION:
+# The base eclass defines some default functions and variables. Nearly
+# everything else inherits from here.
+
+inherit eutils
+
+BASE_EXPF="src_unpack src_compile src_install"
+case "${EAPI:-0}" in
+	2|3|4) BASE_EXPF+=" src_prepare src_configure" ;;
+	*) ;;
+esac
+
+EXPORT_FUNCTIONS ${BASE_EXPF}
+
+# @ECLASS-VARIABLE: DOCS
+# @DESCRIPTION:
+# Array containing documents passed to dodoc command.
+#
+# DOCS=( "${S}/doc/document.txt" "${S}/doc/doc_folder/" )
+
+# @ECLASS-VARIABLE: HTML_DOCS
+# @DESCRIPTION:
+# Array containing documents passed to dohtml command.
+#
+# HTML_DOCS=( "${S}/doc/document.html" "${S}/doc/html_folder/" )
+
+# @ECLASS-VARIABLE: PATCHES
+# @DESCRIPTION:
+# PATCHES array variable containing all various patches to be applied.
+# This variable is expected to be defined in global scope of ebuild.
+# Make sure to specify the full path. This variable is utilised in
+# src_unpack/src_prepare phase based on EAPI.
+#
+# NOTE: if using patches folders with special file suffixes you have to
+# define one additional variable EPATCH_SUFFIX="something"
+#
+# PATCHES=( "${FILESDIR}/mypatch.patch" "${FILESDIR}/patches_folder/" )
+
+
+# @FUNCTION: base_src_unpack
+# @DESCRIPTION:
+# The base src_unpack function, which is exported.
+# Calls also src_prepare with eapi older than 2.
+base_src_unpack() {
+	debug-print-function $FUNCNAME "$@"
+
+	pushd "${WORKDIR}" > /dev/null
+
+	[[ -n "${A}" ]] && unpack ${A}
+	has src_prepare ${BASE_EXPF} || base_src_prepare
+
+	popd > /dev/null
+}
+
+# @FUNCTION: base_src_prepare
+# @DESCRIPTION:
+# The base src_prepare function, which is exported
+# EAPI is greater or equal to 2. Here the PATCHES array is evaluated.
+base_src_prepare() {
+	debug-print-function $FUNCNAME "$@"
+	debug-print "$FUNCNAME: PATCHES=$PATCHES"
+
+	local patches_failed=0
+
+	pushd "${S}" > /dev/null
+	if [[ "$(declare -p PATCHES 2>/dev/null 2>&1)" == "declare -a"* ]]; then
+		for x in "${PATCHES[@]}"; do
+			debug-print "$FUNCNAME: applying patch from ${x}"
+			if [[ -d "${x}" ]]; then
+				# Use standardized names and locations with bulk patching
+				# Patch directory is ${WORKDIR}/patch
+				# See epatch() in eutils.eclass for more documentation
+				EPATCH_SUFFIX=${EPATCH_SUFFIX:=patch}
+
+				# in order to preserve normal EPATCH_SOURCE value that can
+				# be used other way than with base eclass store in local
+				# variable and restore later
+				oldval=${EPATCH_SOURCE}
+				EPATCH_SOURCE=${x}
+				EPATCH_FORCE=yes
+				epatch
+				EPATCH_SOURCE=${oldval}
+			elif [[ -f "${x}" ]]; then
+				epatch "${x}"
+			else
+				ewarn "QA: File or directory \"${x}\" does not exist."
+				ewarn "QA: Check your PATCHES array or add missing file/directory."
+				patches_failed=1
+			fi
+		done
+		[[ ${patches_failed} -eq 1 ]] && die "Some patches failed. See above messages."
+	else
+		for x in ${PATCHES}; do
+			debug-print "$FUNCNAME: patching from ${x}"
+			epatch "${x}"
+		done
+	fi
+
+	# Apply user patches
+	debug-print "$FUNCNAME: applying user patches"
+	epatch_user
+
+	popd > /dev/null
+}
+
+# @FUNCTION: base_src_configure
+# @DESCRIPTION:
+# The base src_configure function, which is exported when
+# EAPI is greater or equal to 2. Runs basic econf.
+base_src_configure() {
+	debug-print-function $FUNCNAME "$@"
+
+	# there is no pushd ${S} so we can override its place where to run
+	[[ -x ${ECONF_SOURCE:-.}/configure ]] && econf "$@"
+}
+
+# @FUNCTION: base_src_compile
+# @DESCRIPTION:
+# The base src_compile function, calls src_configure with
+# EAPI older than 2.
+base_src_compile() {
+	debug-print-function $FUNCNAME "$@"
+
+	has src_configure ${BASE_EXPF} || base_src_configure
+	base_src_make "$@"
+}
+
+# @FUNCTION: base_src_make
+# @DESCRIPTION:
+# Actual function that runs emake command.
+base_src_make() {
+	debug-print-function $FUNCNAME "$@"
+
+	if [[ -f Makefile || -f GNUmakefile || -f makefile ]]; then
+		emake "$@" || die "died running emake, $FUNCNAME"
+	fi
+}
+
+# @FUNCTION: base_src_install
+# @DESCRIPTION:
+# The base src_install function. Runs make install and
+# installs documents and html documents from DOCS and HTML_DOCS
+# arrays.
+base_src_install() {
+	debug-print-function $FUNCNAME "$@"
+
+	emake DESTDIR="${D}" "$@" install || die "died running make install, $FUNCNAME"
+	base_src_install_docs
+}
+
+# @FUNCTION: base_src_install_docs
+# @DESCRIPTION:
+# Actual function that install documentation from
+# DOCS and HTML_DOCS arrays.
+base_src_install_docs() {
+	debug-print-function $FUNCNAME "$@"
+
+	local x
+
+	pushd "${S}" > /dev/null
+
+	if [[ "$(declare -p DOCS 2>/dev/null 2>&1)" == "declare -a"* ]]; then
+		for x in "${DOCS[@]}"; do
+			debug-print "$FUNCNAME: docs: creating document from ${x}"
+			dodoc "${x}" || die "dodoc failed"
+		done
+	fi
+	if [[ "$(declare -p HTML_DOCS 2>/dev/null 2>&1)" == "declare -a"* ]]; then
+		for x in "${HTML_DOCS[@]}"; do
+			debug-print "$FUNCNAME: docs: creating html document from ${x}"
+			dohtml -r "${x}" || die "dohtml failed"
+		done
+	fi
+
+	popd > /dev/null
+}