From ba32c33455b32fdea5c0355af4caf118a266c9cf Mon Sep 17 00:00:00 2001
From: Zac Medico <zmedico@gentoo.org>
Date: Tue, 7 Sep 2010 12:51:08 -0700
Subject: [PATCH] Move stale elog cleanup code from ebuild.sh to
 _doebuild_spawn(), so that elog messages generated by bashrc are preserved
 when appropriate.

---
 bin/ebuild.sh                          | 21 +++++++++++----------
 pym/portage/package/ebuild/doebuild.py | 12 ++++++++++++
 2 files changed, 23 insertions(+), 10 deletions(-)

diff --git a/bin/ebuild.sh b/bin/ebuild.sh
index e976bd114..d49259bd7 100755
--- a/bin/ebuild.sh
+++ b/bin/ebuild.sh
@@ -687,7 +687,6 @@ ebuild_phase() {
 
 ebuild_phase_with_hooks() {
 	local x phase_name=${1}
-	[ -n "$EBUILD_PHASE" ] && rm -f "$T/logging/$EBUILD_PHASE"
 	for x in {pre_,,post_}${phase_name} ; do
 		ebuild_phase ${x}
 	done
@@ -698,7 +697,15 @@ dyn_pretend() {
 }
 
 dyn_setup() {
-	ebuild_phase_with_hooks pkg_setup
+	if [[ -e $PORTAGE_BUILDDIR/.setuped ]] ; then
+		vecho ">>> It appears that '$PF' is already setup; skipping."
+		vecho ">>> Remove '$PORTAGE_BUILDDIR/.setuped' to force prepare."
+		return 0
+	fi
+	ebuild_phase pre_pkg_setup
+	ebuild_phase pkg_setup
+	> "$PORTAGE_BUILDDIR"/.setuped
+	ebuild_phase post_pkg_setup
 }
 
 dyn_unpack() {
@@ -721,7 +728,7 @@ dyn_unpack() {
 	fi
 	if [ "${newstuff}" == "yes" ]; then
 		# We don't necessarily have privileges to do a full dyn_clean here.
-		rm -rf "${PORTAGE_BUILDDIR}"/{.unpacked,.prepared,.configured,.compiled,.tested,.installed,.packaged,build-info}
+		rm -rf "${PORTAGE_BUILDDIR}"/{.setuped,.unpacked,.prepared,.configured,.compiled,.tested,.installed,.packaged,build-info}
 		if ! hasq keepwork $FEATURES ; then
 			rm -rf "${WORKDIR}"
 		fi
@@ -740,7 +747,6 @@ dyn_unpack() {
 	if [ ! -d "${WORKDIR}" ]; then
 		install -m${PORTAGE_WORKDIR_MODE:-0700} -d "${WORKDIR}" || die "Failed to create dir '${WORKDIR}'"
 	fi
-	[ -n "$EBUILD_PHASE" ] && rm -f "$T/logging/$EBUILD_PHASE"
 	cd "${WORKDIR}" || die "Directory change failed: \`cd '${WORKDIR}'\`"
 	ebuild_phase pre_src_unpack
 	vecho ">>> Unpacking source..."
@@ -771,7 +777,7 @@ dyn_clean() {
 	fi
 
 	if [[ $EMERGE_FROM = binary ]] || ! hasq keepwork $FEATURES; then
-		rm -f "$PORTAGE_BUILDDIR"/.{ebuild_changed,logid,unpacked,prepared} \
+		rm -f "$PORTAGE_BUILDDIR"/.{ebuild_changed,logid,setuped,unpacked,prepared} \
 			"$PORTAGE_BUILDDIR"/.{configured,compiled,tested,packaged} \
 			"$PORTAGE_BUILDDIR"/.die_hooks \
 			"$PORTAGE_BUILDDIR"/.ipc_{in,out,lock} \
@@ -987,7 +993,6 @@ dyn_prepare() {
 
 	trap abort_prepare SIGINT SIGQUIT
 
-	[ -n "$EBUILD_PHASE" ] && rm -f "$T/logging/$EBUILD_PHASE"
 	ebuild_phase pre_src_prepare
 	vecho ">>> Preparing source in $PWD ..."
 	ebuild_phase src_prepare
@@ -1018,7 +1023,6 @@ dyn_configure() {
 
 	trap abort_configure SIGINT SIGQUIT
 
-	[ -n "$EBUILD_PHASE" ] && rm -f "$T/logging/$EBUILD_PHASE"
 	ebuild_phase pre_src_configure
 
 	vecho ">>> Configuring source in $PWD ..."
@@ -1051,7 +1055,6 @@ dyn_compile() {
 
 	trap abort_compile SIGINT SIGQUIT
 
-	[ -n "$EBUILD_PHASE" ] && rm -f "$T/logging/$EBUILD_PHASE"
 	ebuild_phase pre_src_compile
 
 	vecho ">>> Compiling source in $PWD ..."
@@ -1093,7 +1096,6 @@ dyn_test() {
 	else
 		local save_sp=${SANDBOX_PREDICT}
 		addpredict /
-		[ -n "$EBUILD_PHASE" ] && rm -f "$T/logging/$EBUILD_PHASE"
 		ebuild_phase pre_src_test
 		ebuild_phase src_test
 		touch "$PORTAGE_BUILDDIR/.tested" || \
@@ -1115,7 +1117,6 @@ dyn_install() {
 		return 0
 	fi
 	trap "abort_install" SIGINT SIGQUIT
-	[ -n "$EBUILD_PHASE" ] && rm -f "$T/logging/$EBUILD_PHASE"
 	ebuild_phase pre_src_install
 	rm -rf "${PORTAGE_BUILDDIR}/image"
 	mkdir "${PORTAGE_BUILDDIR}/image"
diff --git a/pym/portage/package/ebuild/doebuild.py b/pym/portage/package/ebuild/doebuild.py
index 696b65eb7..a61a56687 100644
--- a/pym/portage/package/ebuild/doebuild.py
+++ b/pym/portage/package/ebuild/doebuild.py
@@ -92,6 +92,18 @@ def _doebuild_spawn(phase, settings, actionmap=None, **kwargs):
 			os.path.basename(EBUILD_SH_BINARY))),
 			ebuild_sh_arg)
 
+	if phase not in EbuildSpawnProcess._phases_without_builddir:
+		phase_completed_file = os.path.join(settings['PORTAGE_BUILDIR'],
+			phase.rstrip('e') + 'ed')
+		if not os.path.exists(phase_completed_file):
+			# If the phase is really going to run then we want
+			# to eliminate any stale elog messages that may
+			# exist from a previous run.
+			try:
+				os.unlink(os.path.join(settings['T'], 'logging', phase))
+			except OSError:
+				pass
+
 	settings['EBUILD_PHASE'] = phase
 	try:
 		return spawn(cmd, settings, **kwargs)
-- 
2.26.2