From 6b4b621f1abcf21d3bfa54b323126a3ef11eb52c Mon Sep 17 00:00:00 2001
From: Zac Medico <zmedico@gentoo.org>
Date: Wed, 29 Aug 2012 22:04:42 -0700
Subject: EAPI 5: User patches (no-op dummy stub for now)

A real apply_user_patches implementation will be a bit more work, so
for now we'll just implement the minimum amount necessary to satisfy
the spec:
http://git.overlays.gentoo.org/gitweb/?p=proj/pms.git;a=commit;h=a8bf7862967cce36b7f1b408934a774126da2538
---
 bin/phase-functions.sh | 23 ++++++++++++++++++++++-
 bin/phase-helpers.sh   | 15 +++++++++++++++
 bin/save-ebuild-env.sh |  4 +++-
 3 files changed, 40 insertions(+), 2 deletions(-)

diff --git a/bin/phase-functions.sh b/bin/phase-functions.sh
index c23be74d3..ff7d85520 100644
--- a/bin/phase-functions.sh
+++ b/bin/phase-functions.sh
@@ -277,7 +277,8 @@ dyn_clean() {
 			"$PORTAGE_BUILDDIR"/.{configured,compiled,tested,packaged} \
 			"$PORTAGE_BUILDDIR"/.die_hooks \
 			"$PORTAGE_BUILDDIR"/.ipc_{in,out,lock} \
-			"$PORTAGE_BUILDDIR"/.exit_status
+			"$PORTAGE_BUILDDIR"/.exit_status \
+			"$PORTAGE_BUILDDIR"/.apply_user_patches
 
 		rm -rf "${PORTAGE_BUILDDIR}/build-info"
 		rm -rf "${WORKDIR}"
@@ -381,6 +382,14 @@ dyn_prepare() {
 		die "Failed to create $PORTAGE_BUILDDIR/.prepared"
 	vecho ">>> Source prepared."
 	ebuild_phase post_src_prepare
+	case "${EAPI}" in
+		0|1|2|3|4|4-python|4-slot-abi)
+			;;
+		*)
+			[[ ! -f ${PORTAGE_BUILDDIR}/.apply_user_patches ]] && \
+				die "src_prepare must call apply_user_patches at least once"
+			;;
+	esac
 
 	trap - SIGINT SIGQUIT
 }
@@ -804,6 +813,18 @@ _ebuild_phase_funcs() {
 						eval "default_src_install() { _eapi4_src_install \"\$@\" ; }"
 						[[ $phase_func = src_install ]] && \
 							eval "default() { _eapi4_$phase_func \"\$@\" ; }"
+						case "$eapi" in
+							4|4-python|4-slot-abi)
+								;;
+							*)
+								! declare -F src_prepare >/dev/null && \
+									src_prepare() { _eapi5_src_prepare "$@" ; }
+								default_src_prepare() { _eapi5_src_prepare "$@" ; }
+								[[ $phase_func = src_prepare ]] && \
+									eval "default() { _eapi5_$phase_func \"\$@\" ; }"
+								apply_user_patches() { _eapi5_apply_user_patches "$@" ; }
+								;;
+						esac
 						;;
 				esac
 
diff --git a/bin/phase-helpers.sh b/bin/phase-helpers.sh
index 3f02c0701..3230870c2 100644
--- a/bin/phase-helpers.sh
+++ b/bin/phase-helpers.sh
@@ -598,6 +598,21 @@ _eapi4_src_install() {
 	fi
 }
 
+_eapi5_src_prepare() {
+	apply_user_patches
+}
+
+apply_user_patches() {
+	die "apply_user_patches is not supported with EAPI ${EAPI}"
+}
+
+_eapi5_apply_user_patches() {
+	# This is a no-op that is just enough to fullfill the spec.
+	[[ -f ${PORTAGE_BUILDDIR}/.apply_user_patches ]] && return 1
+	> "${PORTAGE_BUILDDIR}/.apply_user_patches" || die
+	return 1
+}
+
 # @FUNCTION: has_version
 # @USAGE: <DEPEND ATOM>
 # @DESCRIPTION:
diff --git a/bin/save-ebuild-env.sh b/bin/save-ebuild-env.sh
index 47a2acae5..4bf6e4e18 100644
--- a/bin/save-ebuild-env.sh
+++ b/bin/save-ebuild-env.sh
@@ -46,7 +46,8 @@ save_ebuild_env() {
 	done
 	unset x
 
-	unset -f assert assert_sigpipe_ok dump_trace die diefunc \
+	unset -f apply_user_patches assert assert_sigpipe_ok \
+		dump_trace die diefunc \
 		quiet_mode vecho elog_base eqawarn elog \
 		esyslog einfo einfon ewarn eerror ebegin _eend eend KV_major \
 		KV_minor KV_micro KV_to_int get_KV unset_colors set_colors has \
@@ -67,6 +68,7 @@ save_ebuild_env() {
 		save_ebuild_env filter_readonly_variables preprocess_ebuild_env \
 		set_unless_changed unset_unless_changed source_all_bashrcs \
 		ebuild_main ebuild_phase ebuild_phase_with_hooks \
+		_eapi5_apply_user_patches _eapi5_src_prepare \
 		_ebuild_arg_to_phase _ebuild_phase_funcs default \
 		_hasg _hasgq _unpack_tar \
 		${QA_INTERCEPTORS}
-- 
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