ebuild.sh: split out phase-functions.sh

This relocates dyn_* and related functions that are needed for
execution of regular phases, but not for the "depend" phase. It
reduces the size of ebuild.sh by 23%, so there's less code to be
sourced during the "depend" phase.

2 files changed, 613 insertions, 608 deletions

diff --git a/bin/ebuild.sh b/bin/ebuild.sh
index 23a12401d..8df5eefb6 100755
--- a/bin/ebuild.sh
+++ b/bin/ebuild.sh
@@ -688,108 +688,6 @@ _eapi4_src_install() {
 	fi
 }
 
-ebuild_phase() {
-	declare -F "$1" >/dev/null && qa_call $1
-}
-
-ebuild_phase_with_hooks() {
-	local x phase_name=${1}
-	for x in {pre_,,post_}${phase_name} ; do
-		ebuild_phase ${x}
-	done
-}
-
-dyn_pretend() {
-	if [[ -e $PORTAGE_BUILDDIR/.pretended ]] ; then
-		vecho ">>> It appears that '$PF' is already pretended; skipping."
-		vecho ">>> Remove '$PORTAGE_BUILDDIR/.pretended' to force pretend."
-		return 0
-	fi
-	ebuild_phase pre_pkg_pretend
-	ebuild_phase pkg_pretend
-	>> "$PORTAGE_BUILDDIR/.pretended" || \
-		die "Failed to create $PORTAGE_BUILDDIR/.pretended"
-	ebuild_phase post_pkg_pretend
-}
-
-dyn_setup() {
-	if [[ -e $PORTAGE_BUILDDIR/.setuped ]] ; then
-		vecho ">>> It appears that '$PF' is already setup; skipping."
-		vecho ">>> Remove '$PORTAGE_BUILDDIR/.setuped' to force setup."
-		return 0
-	fi
-	ebuild_phase pre_pkg_setup
-	ebuild_phase pkg_setup
-	>> "$PORTAGE_BUILDDIR/.setuped" || \
-		die "Failed to create $PORTAGE_BUILDDIR/.setuped"
-	ebuild_phase post_pkg_setup
-}
-
-dyn_unpack() {
-	if [[ -f ${PORTAGE_BUILDDIR}/.unpacked ]] ; then
-		vecho ">>> WORKDIR is up-to-date, keeping..."
-		return 0
-	fi
-	if [ ! -d "${WORKDIR}" ]; then
-		install -m${PORTAGE_WORKDIR_MODE:-0700} -d "${WORKDIR}" || die "Failed to create dir '${WORKDIR}'"
-	fi
-	cd "${WORKDIR}" || die "Directory change failed: \`cd '${WORKDIR}'\`"
-	ebuild_phase pre_src_unpack
-	vecho ">>> Unpacking source..."
-	ebuild_phase src_unpack
-	>> "$PORTAGE_BUILDDIR/.unpacked" || \
-		die "Failed to create $PORTAGE_BUILDDIR/.unpacked"
-	vecho ">>> Source unpacked in ${WORKDIR}"
-	ebuild_phase post_src_unpack
-}
-
-dyn_clean() {
-	if [ -z "${PORTAGE_BUILDDIR}" ]; then
-		echo "Aborting clean phase because PORTAGE_BUILDDIR is unset!"
-		return 1
-	elif [ ! -d "${PORTAGE_BUILDDIR}" ] ; then
-		return 0
-	fi
-	if has chflags $FEATURES ; then
-		chflags -R noschg,nouchg,nosappnd,nouappnd "${PORTAGE_BUILDDIR}"
-		chflags -R nosunlnk,nouunlnk "${PORTAGE_BUILDDIR}" 2>/dev/null
-	fi
-
-	rm -rf "${PORTAGE_BUILDDIR}/image" "${PORTAGE_BUILDDIR}/homedir"
-	rm -f "${PORTAGE_BUILDDIR}/.installed"
-
-	if [[ $EMERGE_FROM = binary ]] || \
-		! has keeptemp $FEATURES && ! has keepwork $FEATURES ; then
-		rm -rf "${T}"
-	fi
-
-	if [[ $EMERGE_FROM = binary ]] || ! has keepwork $FEATURES; then
-		rm -f "$PORTAGE_BUILDDIR"/.{ebuild_changed,logid,pretended,setuped,unpacked,prepared} \
-			"$PORTAGE_BUILDDIR"/.{configured,compiled,tested,packaged} \
-			"$PORTAGE_BUILDDIR"/.die_hooks \
-			"$PORTAGE_BUILDDIR"/.ipc_{in,out,lock} \
-			"$PORTAGE_BUILDDIR"/.exit_status
-
-		rm -rf "${PORTAGE_BUILDDIR}/build-info"
-		rm -rf "${WORKDIR}"
-	fi
-
-	if [ -f "${PORTAGE_BUILDDIR}/.unpacked" ]; then
-		find "${PORTAGE_BUILDDIR}" -type d ! -regex "^${WORKDIR}" | sort -r | tr "\n" "\0" | $XARGS -0 rmdir &>/dev/null
-	fi
-
-	# do not bind this to doebuild defined DISTDIR; don't trust doebuild, and if mistakes are made it'll
-	# result in it wiping the users distfiles directory (bad).
-	rm -rf "${PORTAGE_BUILDDIR}/distdir"
-
-	# Some kernels, such as Solaris, return EINVAL when an attempt
-	# is made to remove the current working directory.
-	cd "$PORTAGE_BUILDDIR"/../..
-	rmdir "$PORTAGE_BUILDDIR" 2>/dev/null
-
-	true
-}
-
 into() {
 	if [ "$1" == "/" ]; then
 		export DESTTREE=""
@@ -905,359 +803,6 @@ docompress() {
 	fi
 }
 
-abort_handler() {
-	local msg
-	if [ "$2" != "fail" ]; then
-		msg="${EBUILD}: ${1} aborted; exiting."
-	else
-		msg="${EBUILD}: ${1} failed; exiting."
-	fi
-	echo
-	echo "$msg"
-	echo
-	eval ${3}
-	#unset signal handler
-	trap - SIGINT SIGQUIT
-}
-
-abort_prepare() {
-	abort_handler src_prepare $1
-	rm -f "$PORTAGE_BUILDDIR/.prepared"
-	exit 1
-}
-
-abort_configure() {
-	abort_handler src_configure $1
-	rm -f "$PORTAGE_BUILDDIR/.configured"
-	exit 1
-}
-
-abort_compile() {
-	abort_handler "src_compile" $1
-	rm -f "${PORTAGE_BUILDDIR}/.compiled"
-	exit 1
-}
-
-abort_test() {
-	abort_handler "dyn_test" $1
-	rm -f "${PORTAGE_BUILDDIR}/.tested"
-	exit 1
-}
-
-abort_install() {
-	abort_handler "src_install" $1
-	rm -rf "${PORTAGE_BUILDDIR}/image"
-	exit 1
-}
-
-has_phase_defined_up_to() {
-	local phase
-	for phase in unpack prepare configure compile install; do
-		has ${phase} ${DEFINED_PHASES} && return 0
-		[[ ${phase} == $1 ]] && return 1
-	done
-	# We shouldn't actually get here
-	return 1
-}
-
-dyn_prepare() {
-
-	if [[ -e $PORTAGE_BUILDDIR/.prepared ]] ; then
-		vecho ">>> It appears that '$PF' is already prepared; skipping."
-		vecho ">>> Remove '$PORTAGE_BUILDDIR/.prepared' to force prepare."
-		return 0
-	fi
-
-	if [[ -d $S ]] ; then
-		cd "${S}"
-	elif has $EAPI 0 1 2 3 3_pre2 ; then
-		cd "${WORKDIR}"
-	elif [[ -z ${A} ]] && ! has_phase_defined_up_to prepare; then
-		cd "${WORKDIR}"
-	else
-		die "The source directory '${S}' doesn't exist"
-	fi
-
-	trap abort_prepare SIGINT SIGQUIT
-
-	ebuild_phase pre_src_prepare
-	vecho ">>> Preparing source in $PWD ..."
-	ebuild_phase src_prepare
-	>> "$PORTAGE_BUILDDIR/.prepared" || \
-		die "Failed to create $PORTAGE_BUILDDIR/.prepared"
-	vecho ">>> Source prepared."
-	ebuild_phase post_src_prepare
-
-	trap - SIGINT SIGQUIT
-}
-
-dyn_configure() {
-
-	if [[ -e $PORTAGE_BUILDDIR/.configured ]] ; then
-		vecho ">>> It appears that '$PF' is already configured; skipping."
-		vecho ">>> Remove '$PORTAGE_BUILDDIR/.configured' to force configuration."
-		return 0
-	fi
-
-	if [[ -d $S ]] ; then
-		cd "${S}"
-	elif has $EAPI 0 1 2 3 3_pre2 ; then
-		cd "${WORKDIR}"
-	elif [[ -z ${A} ]] && ! has_phase_defined_up_to configure; then
-		cd "${WORKDIR}"
-	else
-		die "The source directory '${S}' doesn't exist"
-	fi
-
-	trap abort_configure SIGINT SIGQUIT
-
-	ebuild_phase pre_src_configure
-
-	vecho ">>> Configuring source in $PWD ..."
-	ebuild_phase src_configure
-	>> "$PORTAGE_BUILDDIR/.configured" || \
-		die "Failed to create $PORTAGE_BUILDDIR/.configured"
-	vecho ">>> Source configured."
-
-	ebuild_phase post_src_configure
-
-	trap - SIGINT SIGQUIT
-}
-
-dyn_compile() {
-
-	if [[ -e $PORTAGE_BUILDDIR/.compiled ]] ; then
-		vecho ">>> It appears that '${PF}' is already compiled; skipping."
-		vecho ">>> Remove '$PORTAGE_BUILDDIR/.compiled' to force compilation."
-		return 0
-	fi
-
-	if [[ -d $S ]] ; then
-		cd "${S}"
-	elif has $EAPI 0 1 2 3 3_pre2 ; then
-		cd "${WORKDIR}"
-	elif [[ -z ${A} ]] && ! has_phase_defined_up_to compile; then
-		cd "${WORKDIR}"
-	else
-		die "The source directory '${S}' doesn't exist"
-	fi
-
-	trap abort_compile SIGINT SIGQUIT
-
-	if has distcc $FEATURES && has distcc-pump $FEATURES ; then
-		if [[ -z $INCLUDE_SERVER_PORT ]] || [[ ! -w $INCLUDE_SERVER_PORT ]] ; then
-			eval $(pump --startup)
-			trap "pump --shutdown" EXIT
-		fi
-	fi
-
-	ebuild_phase pre_src_compile
-
-	vecho ">>> Compiling source in $PWD ..."
-	ebuild_phase src_compile
-	>> "$PORTAGE_BUILDDIR/.compiled" || \
-		die "Failed to create $PORTAGE_BUILDDIR/.compiled"
-	vecho ">>> Source compiled."
-
-	ebuild_phase post_src_compile
-
-	trap - SIGINT SIGQUIT
-}
-
-dyn_test() {
-
-	if [[ -e $PORTAGE_BUILDDIR/.tested ]] ; then
-		vecho ">>> It appears that ${PN} has already been tested; skipping."
-		vecho ">>> Remove '${PORTAGE_BUILDDIR}/.tested' to force test."
-		return
-	fi
-
-	if [ "${EBUILD_FORCE_TEST}" == "1" ] ; then
-		# If USE came from ${T}/environment then it might not have USE=test
-		# like it's supposed to here.
-		! has test ${USE} && export USE="${USE} test"
-	fi
-
-	trap "abort_test" SIGINT SIGQUIT
-	if [ -d "${S}" ]; then
-		cd "${S}"
-	else
-		cd "${WORKDIR}"
-	fi
-
-	if ! has test $FEATURES && [ "${EBUILD_FORCE_TEST}" != "1" ]; then
-		vecho ">>> Test phase [not enabled]: ${CATEGORY}/${PF}"
-	elif has test $RESTRICT; then
-		einfo "Skipping make test/check due to ebuild restriction."
-		vecho ">>> Test phase [explicitly disabled]: ${CATEGORY}/${PF}"
-	else
-		local save_sp=${SANDBOX_PREDICT}
-		addpredict /
-		ebuild_phase pre_src_test
-		ebuild_phase src_test
-		>> "$PORTAGE_BUILDDIR/.tested" || \
-			die "Failed to create $PORTAGE_BUILDDIR/.tested"
-		ebuild_phase post_src_test
-		SANDBOX_PREDICT=${save_sp}
-	fi
-
-	trap - SIGINT SIGQUIT
-}
-
-dyn_install() {
-	[ -z "$PORTAGE_BUILDDIR" ] && die "${FUNCNAME}: PORTAGE_BUILDDIR is unset"
-	if has noauto $FEATURES ; then
-		rm -f "${PORTAGE_BUILDDIR}/.installed"
-	elif [[ -e $PORTAGE_BUILDDIR/.installed ]] ; then
-		vecho ">>> It appears that '${PF}' is already installed; skipping."
-		vecho ">>> Remove '${PORTAGE_BUILDDIR}/.installed' to force install."
-		return 0
-	fi
-	trap "abort_install" SIGINT SIGQUIT
-	ebuild_phase pre_src_install
-	rm -rf "${PORTAGE_BUILDDIR}/image"
-	mkdir "${PORTAGE_BUILDDIR}/image"
-	if [[ -d $S ]] ; then
-		cd "${S}"
-	elif has $EAPI 0 1 2 3 3_pre2 ; then
-		cd "${WORKDIR}"
-	elif [[ -z ${A} ]] && ! has_phase_defined_up_to install; then
-		cd "${WORKDIR}"
-	else
-		die "The source directory '${S}' doesn't exist"
-	fi
-
-	vecho
-	vecho ">>> Install ${PF} into ${D} category ${CATEGORY}"
-	#our custom version of libtool uses $S and $D to fix
-	#invalid paths in .la files
-	export S D
-
-	# Reset exeinto(), docinto(), insinto(), and into() state variables
-	# in case the user is running the install phase multiple times
-	# consecutively via the ebuild command.
-	export DESTTREE=/usr
-	export INSDESTTREE=""
-	export _E_EXEDESTTREE_=""
-	export _E_DOCDESTTREE_=""
-
-	ebuild_phase src_install
-	>> "$PORTAGE_BUILDDIR/.installed" || \
-		die "Failed to create $PORTAGE_BUILDDIR/.installed"
-	vecho ">>> Completed installing ${PF} into ${D}"
-	vecho
-	ebuild_phase post_src_install
-
-	cd "${PORTAGE_BUILDDIR}"/build-info
-	set -f
-	local f x
-	IFS=$' \t\n\r'
-	for f in CATEGORY DEFINED_PHASES FEATURES INHERITED IUSE REQUIRED_USE \
-		PF PKGUSE SLOT KEYWORDS HOMEPAGE DESCRIPTION ; do
-		x=$(echo -n ${!f})
-		[[ -n $x ]] && echo "$x" > $f
-	done
-	if [[ $CATEGORY != virtual ]] ; then
-		for f in ASFLAGS CBUILD CC CFLAGS CHOST CTARGET CXX \
-			CXXFLAGS EXTRA_ECONF EXTRA_EINSTALL EXTRA_MAKE \
-			LDFLAGS LIBCFLAGS LIBCXXFLAGS ; do
-			x=$(echo -n ${!f})
-			[[ -n $x ]] && echo "$x" > $f
-		done
-	fi
-	echo "${USE}"       > USE
-	echo "${EAPI:-0}"   > EAPI
-	set +f
-
-	# local variables can leak into the saved environment.
-	unset f
-
-	save_ebuild_env --exclude-init-phases | filter_readonly_variables \
-		--filter-path --filter-sandbox --allow-extra-vars > environment
-	assert "save_ebuild_env failed"
-
-	${PORTAGE_BZIP2_COMMAND} -f9 environment
-
-	cp "${EBUILD}" "${PF}.ebuild"
-	[ -n "${PORTAGE_REPO_NAME}" ]  && echo "${PORTAGE_REPO_NAME}" > repository
-	if has nostrip ${FEATURES} ${RESTRICT} || has strip ${RESTRICT}
-	then
-		>> DEBUGBUILD
-	fi
-	trap - SIGINT SIGQUIT
-}
-
-dyn_preinst() {
-	if [ -z "${D}" ]; then
-		eerror "${FUNCNAME}: D is unset"
-		return 1
-	fi
-	ebuild_phase_with_hooks pkg_preinst
-}
-
-dyn_help() {
-	echo
-	echo "Portage"
-	echo "Copyright 1999-2010 Gentoo Foundation"
-	echo
-	echo "How to use the ebuild command:"
-	echo
-	echo "The first argument to ebuild should be an existing .ebuild file."
-	echo
-	echo "One or more of the following options can then be specified.  If more"
-	echo "than one option is specified, each will be executed in order."
-	echo
-	echo "  help        : show this help screen"
-	echo "  pretend     : execute package specific pretend actions"
-	echo "  setup       : execute package specific setup actions"
-	echo "  fetch       : download source archive(s) and patches"
-	echo "  digest      : create a manifest file for the package"
-	echo "  manifest    : create a manifest file for the package"
-	echo "  unpack      : unpack sources (auto-dependencies if needed)"
-	echo "  prepare     : prepare sources (auto-dependencies if needed)"
-	echo "  configure   : configure sources (auto-fetch/unpack if needed)"
-	echo "  compile     : compile sources (auto-fetch/unpack/configure if needed)"
-	echo "  test        : test package (auto-fetch/unpack/configure/compile if needed)"
-	echo "  preinst     : execute pre-install instructions"
-	echo "  postinst    : execute post-install instructions"
-	echo "  install     : install the package to the temporary install directory"
-	echo "  qmerge      : merge image into live filesystem, recording files in db"
-	echo "  merge       : do fetch, unpack, compile, install and qmerge"
-	echo "  prerm       : execute pre-removal instructions"
-	echo "  postrm      : execute post-removal instructions"
-	echo "  unmerge     : remove package from live filesystem"
-	echo "  config      : execute package specific configuration actions"
-	echo "  package     : create a tarball package in ${PKGDIR}/All"
-	echo "  rpm         : build a RedHat RPM package"
-	echo "  clean       : clean up all source and temporary files"
-	echo
-	echo "The following settings will be used for the ebuild process:"
-	echo
-	echo "  package     : ${PF}"
-	echo "  slot        : ${SLOT}"
-	echo "  category    : ${CATEGORY}"
-	echo "  description : ${DESCRIPTION}"
-	echo "  system      : ${CHOST}"
-	echo "  c flags     : ${CFLAGS}"
-	echo "  c++ flags   : ${CXXFLAGS}"
-	echo "  make flags  : ${MAKEOPTS}"
-	echo -n "  build mode  : "
-	if has nostrip ${FEATURES} ${RESTRICT} || has strip ${RESTRICT} ;
-	then
-		echo "debug (large)"
-	else
-		echo "production (stripped)"
-	fi
-	echo "  merge to    : ${ROOT}"
-	echo
-	if [ -n "$USE" ]; then
-		echo "Additionally, support for the following optional features will be enabled:"
-		echo
-		echo "  ${USE}"
-	fi
-	echo
-}
-
 # debug-print() gets called from many places with verbose status information useful
 # for tracking down problems. The output is in $T/eclass-debug.log.
 # You can set ECLASS_DEBUG_OUTPUT to redirect the output somewhere else as well.
@@ -1466,159 +1011,6 @@ remove_path_entry() {
 	PATH="${stripped_path}"
 }
 
-# @FUNCTION: _ebuild_arg_to_phase
-# @DESCRIPTION:
-# Translate a known ebuild(1) argument into the precise
-# name of it's corresponding ebuild phase.
-_ebuild_arg_to_phase() {
-	[ $# -ne 2 ] && die "expected exactly 2 args, got $#: $*"
-	local eapi=$1
-	local arg=$2
-	local phase_func=""
-
-	case "$arg" in
-		pretend)
-			! has $eapi 0 1 2 3 3_pre2 && \
-				phase_func=pkg_pretend
-			;;
-		setup)
-			phase_func=pkg_setup
-			;;
-		nofetch)
-			phase_func=pkg_nofetch
-			;;
-		unpack)
-			phase_func=src_unpack
-			;;
-		prepare)
-			! has $eapi 0 1 && \
-				phase_func=src_prepare
-			;;
-		configure)
-			! has $eapi 0 1 && \
-				phase_func=src_configure
-			;;
-		compile)
-			phase_func=src_compile
-			;;
-		test)
-			phase_func=src_test
-			;;
-		install)
-			phase_func=src_install
-			;;
-		preinst)
-			phase_func=pkg_preinst
-			;;
-		postinst)
-			phase_func=pkg_postinst
-			;;
-		prerm)
-			phase_func=pkg_prerm
-			;;
-		postrm)
-			phase_func=pkg_postrm
-			;;
-	esac
-
-	[[ -z $phase_func ]] && return 1
-	echo "$phase_func"
-	return 0
-}
-
-_ebuild_phase_funcs() {
-	[ $# -ne 2 ] && die "expected exactly 2 args, got $#: $*"
-	local eapi=$1
-	local phase_func=$2
-	local default_phases="pkg_nofetch src_unpack src_prepare src_configure
-		src_compile src_install src_test"
-	local x y default_func=""
-
-	for x in pkg_nofetch src_unpack src_test ; do
-		declare -F $x >/dev/null || \
-			eval "$x() { _eapi0_$x \"\$@\" ; }"
-	done
-
-	case $eapi in
-
-		0|1)
-
-			if ! declare -F src_compile >/dev/null ; then
-				case $eapi in
-					0)
-						src_compile() { _eapi0_src_compile "$@" ; }
-						;;
-					*)
-						src_compile() { _eapi1_src_compile "$@" ; }
-						;;
-				esac
-			fi
-
-			for x in $default_phases ; do
-				eval "default_$x() {
-					die \"default_$x() is not supported with EAPI='$eapi' during phase $phase_func\"
-				}"
-			done
-
-			eval "default() {
-				die \"default() is not supported with EAPI='$eapi' during phase $phase_func\"
-			}"
-
-			;;
-
-		*)
-
-			declare -F src_configure >/dev/null || \
-				src_configure() { _eapi2_src_configure "$@" ; }
-
-			declare -F src_compile >/dev/null || \
-				src_compile() { _eapi2_src_compile "$@" ; }
-
-			has $eapi 2 3 3_pre2 || declare -F src_install >/dev/null || \
-				src_install() { _eapi4_src_install "$@" ; }
-
-			if has $phase_func $default_phases ; then
-
-				_eapi2_pkg_nofetch   () { _eapi0_pkg_nofetch          "$@" ; }
-				_eapi2_src_unpack    () { _eapi0_src_unpack           "$@" ; }
-				_eapi2_src_prepare   () { true                             ; }
-				_eapi2_src_test      () { _eapi0_src_test             "$@" ; }
-				_eapi2_src_install   () { die "$FUNCNAME is not supported" ; }
-
-				for x in $default_phases ; do
-					eval "default_$x() { _eapi2_$x \"\$@\" ; }"
-				done
-
-				eval "default() { _eapi2_$phase_func \"\$@\" ; }"
-
-				case $eapi in
-					2|3)
-						;;
-					*)
-						eval "default_src_install() { _eapi4_src_install \"\$@\" ; }"
-						[[ $phase_func = src_install ]] && \
-							eval "default() { _eapi4_$phase_func \"\$@\" ; }"
-						;;
-				esac
-
-			else
-
-				for x in $default_phases ; do
-					eval "default_$x() {
-						die \"default_$x() is not supported in phase $default_func\"
-					}"
-				done
-
-				eval "default() {
-					die \"default() is not supported with EAPI='$eapi' during phase $phase_func\"
-				}"
-
-			fi
-
-			;;
-	esac
-}
-
 # Set given variables unless these variable have been already set (e.g. during emerge
 # invocation) to values different than values set in make.conf.
 set_unless_changed() {
@@ -1957,6 +1349,8 @@ fi
 export EBUILD_MASTER_PID=$BASHPID
 trap 'exit 1' SIGTERM
 
+[[ $EBUILD_PHASE == depend ]] || source "${PORTAGE_BIN_PATH}/phase-functions.sh"
+
 if ! has "$EBUILD_PHASE" clean cleanrm depend && \
 	[ -f "${T}"/environment ] ; then
 	# The environment may have been extracted from environment.bz2 or
diff --git a/bin/phase-functions.sh b/bin/phase-functions.sh
new file mode 100644
index 000000000..5216877e5
--- /dev/null
+++ b/bin/phase-functions.sh
@@ -0,0 +1,611 @@
+#!/bin/bash
+# Copyright 1999-2011 Gentoo Foundation
+# Distributed under the terms of the GNU General Public License v2
+
+ebuild_phase() {
+	declare -F "$1" >/dev/null && qa_call $1
+}
+
+ebuild_phase_with_hooks() {
+	local x phase_name=${1}
+	for x in {pre_,,post_}${phase_name} ; do
+		ebuild_phase ${x}
+	done
+}
+
+dyn_pretend() {
+	if [[ -e $PORTAGE_BUILDDIR/.pretended ]] ; then
+		vecho ">>> It appears that '$PF' is already pretended; skipping."
+		vecho ">>> Remove '$PORTAGE_BUILDDIR/.pretended' to force pretend."
+		return 0
+	fi
+	ebuild_phase pre_pkg_pretend
+	ebuild_phase pkg_pretend
+	>> "$PORTAGE_BUILDDIR/.pretended" || \
+		die "Failed to create $PORTAGE_BUILDDIR/.pretended"
+	ebuild_phase post_pkg_pretend
+}
+
+dyn_setup() {
+	if [[ -e $PORTAGE_BUILDDIR/.setuped ]] ; then
+		vecho ">>> It appears that '$PF' is already setup; skipping."
+		vecho ">>> Remove '$PORTAGE_BUILDDIR/.setuped' to force setup."
+		return 0
+	fi
+	ebuild_phase pre_pkg_setup
+	ebuild_phase pkg_setup
+	>> "$PORTAGE_BUILDDIR/.setuped" || \
+		die "Failed to create $PORTAGE_BUILDDIR/.setuped"
+	ebuild_phase post_pkg_setup
+}
+
+dyn_unpack() {
+	if [[ -f ${PORTAGE_BUILDDIR}/.unpacked ]] ; then
+		vecho ">>> WORKDIR is up-to-date, keeping..."
+		return 0
+	fi
+	if [ ! -d "${WORKDIR}" ]; then
+		install -m${PORTAGE_WORKDIR_MODE:-0700} -d "${WORKDIR}" || die "Failed to create dir '${WORKDIR}'"
+	fi
+	cd "${WORKDIR}" || die "Directory change failed: \`cd '${WORKDIR}'\`"
+	ebuild_phase pre_src_unpack
+	vecho ">>> Unpacking source..."
+	ebuild_phase src_unpack
+	>> "$PORTAGE_BUILDDIR/.unpacked" || \
+		die "Failed to create $PORTAGE_BUILDDIR/.unpacked"
+	vecho ">>> Source unpacked in ${WORKDIR}"
+	ebuild_phase post_src_unpack
+}
+
+dyn_clean() {
+	if [ -z "${PORTAGE_BUILDDIR}" ]; then
+		echo "Aborting clean phase because PORTAGE_BUILDDIR is unset!"
+		return 1
+	elif [ ! -d "${PORTAGE_BUILDDIR}" ] ; then
+		return 0
+	fi
+	if has chflags $FEATURES ; then
+		chflags -R noschg,nouchg,nosappnd,nouappnd "${PORTAGE_BUILDDIR}"
+		chflags -R nosunlnk,nouunlnk "${PORTAGE_BUILDDIR}" 2>/dev/null
+	fi
+
+	rm -rf "${PORTAGE_BUILDDIR}/image" "${PORTAGE_BUILDDIR}/homedir"
+	rm -f "${PORTAGE_BUILDDIR}/.installed"
+
+	if [[ $EMERGE_FROM = binary ]] || \
+		! has keeptemp $FEATURES && ! has keepwork $FEATURES ; then
+		rm -rf "${T}"
+	fi
+
+	if [[ $EMERGE_FROM = binary ]] || ! has keepwork $FEATURES; then
+		rm -f "$PORTAGE_BUILDDIR"/.{ebuild_changed,logid,pretended,setuped,unpacked,prepared} \
+			"$PORTAGE_BUILDDIR"/.{configured,compiled,tested,packaged} \
+			"$PORTAGE_BUILDDIR"/.die_hooks \
+			"$PORTAGE_BUILDDIR"/.ipc_{in,out,lock} \
+			"$PORTAGE_BUILDDIR"/.exit_status
+
+		rm -rf "${PORTAGE_BUILDDIR}/build-info"
+		rm -rf "${WORKDIR}"
+	fi
+
+	if [ -f "${PORTAGE_BUILDDIR}/.unpacked" ]; then
+		find "${PORTAGE_BUILDDIR}" -type d ! -regex "^${WORKDIR}" | sort -r | tr "\n" "\0" | $XARGS -0 rmdir &>/dev/null
+	fi
+
+	# do not bind this to doebuild defined DISTDIR; don't trust doebuild, and if mistakes are made it'll
+	# result in it wiping the users distfiles directory (bad).
+	rm -rf "${PORTAGE_BUILDDIR}/distdir"
+
+	# Some kernels, such as Solaris, return EINVAL when an attempt
+	# is made to remove the current working directory.
+	cd "$PORTAGE_BUILDDIR"/../..
+	rmdir "$PORTAGE_BUILDDIR" 2>/dev/null
+
+	true
+}
+
+abort_handler() {
+	local msg
+	if [ "$2" != "fail" ]; then
+		msg="${EBUILD}: ${1} aborted; exiting."
+	else
+		msg="${EBUILD}: ${1} failed; exiting."
+	fi
+	echo
+	echo "$msg"
+	echo
+	eval ${3}
+	#unset signal handler
+	trap - SIGINT SIGQUIT
+}
+
+abort_prepare() {
+	abort_handler src_prepare $1
+	rm -f "$PORTAGE_BUILDDIR/.prepared"
+	exit 1
+}
+
+abort_configure() {
+	abort_handler src_configure $1
+	rm -f "$PORTAGE_BUILDDIR/.configured"
+	exit 1
+}
+
+abort_compile() {
+	abort_handler "src_compile" $1
+	rm -f "${PORTAGE_BUILDDIR}/.compiled"
+	exit 1
+}
+
+abort_test() {
+	abort_handler "dyn_test" $1
+	rm -f "${PORTAGE_BUILDDIR}/.tested"
+	exit 1
+}
+
+abort_install() {
+	abort_handler "src_install" $1
+	rm -rf "${PORTAGE_BUILDDIR}/image"
+	exit 1
+}
+
+has_phase_defined_up_to() {
+	local phase
+	for phase in unpack prepare configure compile install; do
+		has ${phase} ${DEFINED_PHASES} && return 0
+		[[ ${phase} == $1 ]] && return 1
+	done
+	# We shouldn't actually get here
+	return 1
+}
+
+dyn_prepare() {
+
+	if [[ -e $PORTAGE_BUILDDIR/.prepared ]] ; then
+		vecho ">>> It appears that '$PF' is already prepared; skipping."
+		vecho ">>> Remove '$PORTAGE_BUILDDIR/.prepared' to force prepare."
+		return 0
+	fi
+
+	if [[ -d $S ]] ; then
+		cd "${S}"
+	elif has $EAPI 0 1 2 3 3_pre2 ; then
+		cd "${WORKDIR}"
+	elif [[ -z ${A} ]] && ! has_phase_defined_up_to prepare; then
+		cd "${WORKDIR}"
+	else
+		die "The source directory '${S}' doesn't exist"
+	fi
+
+	trap abort_prepare SIGINT SIGQUIT
+
+	ebuild_phase pre_src_prepare
+	vecho ">>> Preparing source in $PWD ..."
+	ebuild_phase src_prepare
+	>> "$PORTAGE_BUILDDIR/.prepared" || \
+		die "Failed to create $PORTAGE_BUILDDIR/.prepared"
+	vecho ">>> Source prepared."
+	ebuild_phase post_src_prepare
+
+	trap - SIGINT SIGQUIT
+}
+
+dyn_configure() {
+
+	if [[ -e $PORTAGE_BUILDDIR/.configured ]] ; then
+		vecho ">>> It appears that '$PF' is already configured; skipping."
+		vecho ">>> Remove '$PORTAGE_BUILDDIR/.configured' to force configuration."
+		return 0
+	fi
+
+	if [[ -d $S ]] ; then
+		cd "${S}"
+	elif has $EAPI 0 1 2 3 3_pre2 ; then
+		cd "${WORKDIR}"
+	elif [[ -z ${A} ]] && ! has_phase_defined_up_to configure; then
+		cd "${WORKDIR}"
+	else
+		die "The source directory '${S}' doesn't exist"
+	fi
+
+	trap abort_configure SIGINT SIGQUIT
+
+	ebuild_phase pre_src_configure
+
+	vecho ">>> Configuring source in $PWD ..."
+	ebuild_phase src_configure
+	>> "$PORTAGE_BUILDDIR/.configured" || \
+		die "Failed to create $PORTAGE_BUILDDIR/.configured"
+	vecho ">>> Source configured."
+
+	ebuild_phase post_src_configure
+
+	trap - SIGINT SIGQUIT
+}
+
+dyn_compile() {
+
+	if [[ -e $PORTAGE_BUILDDIR/.compiled ]] ; then
+		vecho ">>> It appears that '${PF}' is already compiled; skipping."
+		vecho ">>> Remove '$PORTAGE_BUILDDIR/.compiled' to force compilation."
+		return 0
+	fi
+
+	if [[ -d $S ]] ; then
+		cd "${S}"
+	elif has $EAPI 0 1 2 3 3_pre2 ; then
+		cd "${WORKDIR}"
+	elif [[ -z ${A} ]] && ! has_phase_defined_up_to compile; then
+		cd "${WORKDIR}"
+	else
+		die "The source directory '${S}' doesn't exist"
+	fi
+
+	trap abort_compile SIGINT SIGQUIT
+
+	if has distcc $FEATURES && has distcc-pump $FEATURES ; then
+		if [[ -z $INCLUDE_SERVER_PORT ]] || [[ ! -w $INCLUDE_SERVER_PORT ]] ; then
+			eval $(pump --startup)
+			trap "pump --shutdown" EXIT
+		fi
+	fi
+
+	ebuild_phase pre_src_compile
+
+	vecho ">>> Compiling source in $PWD ..."
+	ebuild_phase src_compile
+	>> "$PORTAGE_BUILDDIR/.compiled" || \
+		die "Failed to create $PORTAGE_BUILDDIR/.compiled"
+	vecho ">>> Source compiled."
+
+	ebuild_phase post_src_compile
+
+	trap - SIGINT SIGQUIT
+}
+
+dyn_test() {
+
+	if [[ -e $PORTAGE_BUILDDIR/.tested ]] ; then
+		vecho ">>> It appears that ${PN} has already been tested; skipping."
+		vecho ">>> Remove '${PORTAGE_BUILDDIR}/.tested' to force test."
+		return
+	fi
+
+	if [ "${EBUILD_FORCE_TEST}" == "1" ] ; then
+		# If USE came from ${T}/environment then it might not have USE=test
+		# like it's supposed to here.
+		! has test ${USE} && export USE="${USE} test"
+	fi
+
+	trap "abort_test" SIGINT SIGQUIT
+	if [ -d "${S}" ]; then
+		cd "${S}"
+	else
+		cd "${WORKDIR}"
+	fi
+
+	if ! has test $FEATURES && [ "${EBUILD_FORCE_TEST}" != "1" ]; then
+		vecho ">>> Test phase [not enabled]: ${CATEGORY}/${PF}"
+	elif has test $RESTRICT; then
+		einfo "Skipping make test/check due to ebuild restriction."
+		vecho ">>> Test phase [explicitly disabled]: ${CATEGORY}/${PF}"
+	else
+		local save_sp=${SANDBOX_PREDICT}
+		addpredict /
+		ebuild_phase pre_src_test
+		ebuild_phase src_test
+		>> "$PORTAGE_BUILDDIR/.tested" || \
+			die "Failed to create $PORTAGE_BUILDDIR/.tested"
+		ebuild_phase post_src_test
+		SANDBOX_PREDICT=${save_sp}
+	fi
+
+	trap - SIGINT SIGQUIT
+}
+
+dyn_install() {
+	[ -z "$PORTAGE_BUILDDIR" ] && die "${FUNCNAME}: PORTAGE_BUILDDIR is unset"
+	if has noauto $FEATURES ; then
+		rm -f "${PORTAGE_BUILDDIR}/.installed"
+	elif [[ -e $PORTAGE_BUILDDIR/.installed ]] ; then
+		vecho ">>> It appears that '${PF}' is already installed; skipping."
+		vecho ">>> Remove '${PORTAGE_BUILDDIR}/.installed' to force install."
+		return 0
+	fi
+	trap "abort_install" SIGINT SIGQUIT
+	ebuild_phase pre_src_install
+	rm -rf "${PORTAGE_BUILDDIR}/image"
+	mkdir "${PORTAGE_BUILDDIR}/image"
+	if [[ -d $S ]] ; then
+		cd "${S}"
+	elif has $EAPI 0 1 2 3 3_pre2 ; then
+		cd "${WORKDIR}"
+	elif [[ -z ${A} ]] && ! has_phase_defined_up_to install; then
+		cd "${WORKDIR}"
+	else
+		die "The source directory '${S}' doesn't exist"
+	fi
+
+	vecho
+	vecho ">>> Install ${PF} into ${D} category ${CATEGORY}"
+	#our custom version of libtool uses $S and $D to fix
+	#invalid paths in .la files
+	export S D
+
+	# Reset exeinto(), docinto(), insinto(), and into() state variables
+	# in case the user is running the install phase multiple times
+	# consecutively via the ebuild command.
+	export DESTTREE=/usr
+	export INSDESTTREE=""
+	export _E_EXEDESTTREE_=""
+	export _E_DOCDESTTREE_=""
+
+	ebuild_phase src_install
+	>> "$PORTAGE_BUILDDIR/.installed" || \
+		die "Failed to create $PORTAGE_BUILDDIR/.installed"
+	vecho ">>> Completed installing ${PF} into ${D}"
+	vecho
+	ebuild_phase post_src_install
+
+	cd "${PORTAGE_BUILDDIR}"/build-info
+	set -f
+	local f x
+	IFS=$' \t\n\r'
+	for f in CATEGORY DEFINED_PHASES FEATURES INHERITED IUSE REQUIRED_USE \
+		PF PKGUSE SLOT KEYWORDS HOMEPAGE DESCRIPTION ; do
+		x=$(echo -n ${!f})
+		[[ -n $x ]] && echo "$x" > $f
+	done
+	if [[ $CATEGORY != virtual ]] ; then
+		for f in ASFLAGS CBUILD CC CFLAGS CHOST CTARGET CXX \
+			CXXFLAGS EXTRA_ECONF EXTRA_EINSTALL EXTRA_MAKE \
+			LDFLAGS LIBCFLAGS LIBCXXFLAGS ; do
+			x=$(echo -n ${!f})
+			[[ -n $x ]] && echo "$x" > $f
+		done
+	fi
+	echo "${USE}"       > USE
+	echo "${EAPI:-0}"   > EAPI
+	set +f
+
+	# local variables can leak into the saved environment.
+	unset f
+
+	save_ebuild_env --exclude-init-phases | filter_readonly_variables \
+		--filter-path --filter-sandbox --allow-extra-vars > environment
+	assert "save_ebuild_env failed"
+
+	${PORTAGE_BZIP2_COMMAND} -f9 environment
+
+	cp "${EBUILD}" "${PF}.ebuild"
+	[ -n "${PORTAGE_REPO_NAME}" ]  && echo "${PORTAGE_REPO_NAME}" > repository
+	if has nostrip ${FEATURES} ${RESTRICT} || has strip ${RESTRICT}
+	then
+		>> DEBUGBUILD
+	fi
+	trap - SIGINT SIGQUIT
+}
+
+dyn_preinst() {
+	if [ -z "${D}" ]; then
+		eerror "${FUNCNAME}: D is unset"
+		return 1
+	fi
+	ebuild_phase_with_hooks pkg_preinst
+}
+
+dyn_help() {
+	echo
+	echo "Portage"
+	echo "Copyright 1999-2010 Gentoo Foundation"
+	echo
+	echo "How to use the ebuild command:"
+	echo
+	echo "The first argument to ebuild should be an existing .ebuild file."
+	echo
+	echo "One or more of the following options can then be specified.  If more"
+	echo "than one option is specified, each will be executed in order."
+	echo
+	echo "  help        : show this help screen"
+	echo "  pretend     : execute package specific pretend actions"
+	echo "  setup       : execute package specific setup actions"
+	echo "  fetch       : download source archive(s) and patches"
+	echo "  digest      : create a manifest file for the package"
+	echo "  manifest    : create a manifest file for the package"
+	echo "  unpack      : unpack sources (auto-dependencies if needed)"
+	echo "  prepare     : prepare sources (auto-dependencies if needed)"
+	echo "  configure   : configure sources (auto-fetch/unpack if needed)"
+	echo "  compile     : compile sources (auto-fetch/unpack/configure if needed)"
+	echo "  test        : test package (auto-fetch/unpack/configure/compile if needed)"
+	echo "  preinst     : execute pre-install instructions"
+	echo "  postinst    : execute post-install instructions"
+	echo "  install     : install the package to the temporary install directory"
+	echo "  qmerge      : merge image into live filesystem, recording files in db"
+	echo "  merge       : do fetch, unpack, compile, install and qmerge"
+	echo "  prerm       : execute pre-removal instructions"
+	echo "  postrm      : execute post-removal instructions"
+	echo "  unmerge     : remove package from live filesystem"
+	echo "  config      : execute package specific configuration actions"
+	echo "  package     : create a tarball package in ${PKGDIR}/All"
+	echo "  rpm         : build a RedHat RPM package"
+	echo "  clean       : clean up all source and temporary files"
+	echo
+	echo "The following settings will be used for the ebuild process:"
+	echo
+	echo "  package     : ${PF}"
+	echo "  slot        : ${SLOT}"
+	echo "  category    : ${CATEGORY}"
+	echo "  description : ${DESCRIPTION}"
+	echo "  system      : ${CHOST}"
+	echo "  c flags     : ${CFLAGS}"
+	echo "  c++ flags   : ${CXXFLAGS}"
+	echo "  make flags  : ${MAKEOPTS}"
+	echo -n "  build mode  : "
+	if has nostrip ${FEATURES} ${RESTRICT} || has strip ${RESTRICT} ;
+	then
+		echo "debug (large)"
+	else
+		echo "production (stripped)"
+	fi
+	echo "  merge to    : ${ROOT}"
+	echo
+	if [ -n "$USE" ]; then
+		echo "Additionally, support for the following optional features will be enabled:"
+		echo
+		echo "  ${USE}"
+	fi
+	echo
+}
+
+# @FUNCTION: _ebuild_arg_to_phase
+# @DESCRIPTION:
+# Translate a known ebuild(1) argument into the precise
+# name of it's corresponding ebuild phase.
+_ebuild_arg_to_phase() {
+	[ $# -ne 2 ] && die "expected exactly 2 args, got $#: $*"
+	local eapi=$1
+	local arg=$2
+	local phase_func=""
+
+	case "$arg" in
+		pretend)
+			! has $eapi 0 1 2 3 3_pre2 && \
+				phase_func=pkg_pretend
+			;;
+		setup)
+			phase_func=pkg_setup
+			;;
+		nofetch)
+			phase_func=pkg_nofetch
+			;;
+		unpack)
+			phase_func=src_unpack
+			;;
+		prepare)
+			! has $eapi 0 1 && \
+				phase_func=src_prepare
+			;;
+		configure)
+			! has $eapi 0 1 && \
+				phase_func=src_configure
+			;;
+		compile)
+			phase_func=src_compile
+			;;
+		test)
+			phase_func=src_test
+			;;
+		install)
+			phase_func=src_install
+			;;
+		preinst)
+			phase_func=pkg_preinst
+			;;
+		postinst)
+			phase_func=pkg_postinst
+			;;
+		prerm)
+			phase_func=pkg_prerm
+			;;
+		postrm)
+			phase_func=pkg_postrm
+			;;
+	esac
+
+	[[ -z $phase_func ]] && return 1
+	echo "$phase_func"
+	return 0
+}
+
+_ebuild_phase_funcs() {
+	[ $# -ne 2 ] && die "expected exactly 2 args, got $#: $*"
+	local eapi=$1
+	local phase_func=$2
+	local default_phases="pkg_nofetch src_unpack src_prepare src_configure
+		src_compile src_install src_test"
+	local x y default_func=""
+
+	for x in pkg_nofetch src_unpack src_test ; do
+		declare -F $x >/dev/null || \
+			eval "$x() { _eapi0_$x \"\$@\" ; }"
+	done
+
+	case $eapi in
+
+		0|1)
+
+			if ! declare -F src_compile >/dev/null ; then
+				case $eapi in
+					0)
+						src_compile() { _eapi0_src_compile "$@" ; }
+						;;
+					*)
+						src_compile() { _eapi1_src_compile "$@" ; }
+						;;
+				esac
+			fi
+
+			for x in $default_phases ; do
+				eval "default_$x() {
+					die \"default_$x() is not supported with EAPI='$eapi' during phase $phase_func\"
+				}"
+			done
+
+			eval "default() {
+				die \"default() is not supported with EAPI='$eapi' during phase $phase_func\"
+			}"
+
+			;;
+
+		*)
+
+			declare -F src_configure >/dev/null || \
+				src_configure() { _eapi2_src_configure "$@" ; }
+
+			declare -F src_compile >/dev/null || \
+				src_compile() { _eapi2_src_compile "$@" ; }
+
+			has $eapi 2 3 3_pre2 || declare -F src_install >/dev/null || \
+				src_install() { _eapi4_src_install "$@" ; }
+
+			if has $phase_func $default_phases ; then
+
+				_eapi2_pkg_nofetch   () { _eapi0_pkg_nofetch          "$@" ; }
+				_eapi2_src_unpack    () { _eapi0_src_unpack           "$@" ; }
+				_eapi2_src_prepare   () { true                             ; }
+				_eapi2_src_test      () { _eapi0_src_test             "$@" ; }
+				_eapi2_src_install   () { die "$FUNCNAME is not supported" ; }
+
+				for x in $default_phases ; do
+					eval "default_$x() { _eapi2_$x \"\$@\" ; }"
+				done
+
+				eval "default() { _eapi2_$phase_func \"\$@\" ; }"
+
+				case $eapi in
+					2|3)
+						;;
+					*)
+						eval "default_src_install() { _eapi4_src_install \"\$@\" ; }"
+						[[ $phase_func = src_install ]] && \
+							eval "default() { _eapi4_$phase_func \"\$@\" ; }"
+						;;
+				esac
+
+			else
+
+				for x in $default_phases ; do
+					eval "default_$x() {
+						die \"default_$x() is not supported in phase $default_func\"
+					}"
+				done
+
+				eval "default() {
+					die \"default() is not supported with EAPI='$eapi' during phase $phase_func\"
+				}"
+
+			fi
+
+			;;
+	esac
+}