snap: move the seeding block down, so that it is common to all flavours

live-build/auto/config

@@ -306,24 +306,9 @@ case $PROJECT in
 		add_task install minimal standard ubuntu-desktop
 		LIVE_TASK='ubuntu-live'
 		BASE_SEED='desktop'
-		SEEDS_EXPANDED=$(inheritance ${BASE_SEED})
 		case $ARCH in
 			amd64)	add_package live $SIGNED_KERNEL_PACKAGE ;;
 		esac
-		for seed in ${SEEDS_EXPANDED}; do
-			echo "snap: considering ${seed}"
-			file=config/germinate-output/${seed}.snaps
-			[ -e "${file}" ] || continue
-			# extract the first column (snap package name) from germinate's output
-			# translate the human-readable "foo (classic)" into a
-			# more machine readable "foo/classic"
-			seed_snaps=$(sed -rn '1,/-----/d;/-----/,$d; s/(.*) \|.*/\1/; s, \(classic\),/classic,; p' "${file}")
-			for snap in ${seed_snaps}; do
-				echo "snap: found ${snap}"
-				ALL_SNAPS="${ALL_SNAPS:+${ALL_SNAPS} }${snap}"
-			done
-		done
-		echo "${ALL_SNAPS}" > config/seeded-snaps
 		;;
 
 	ubuntu-desktop-next)
@@ -654,6 +639,24 @@ case $PROJECT in
 		;;
 esac
 
+if [ -n "${BASE_SEED}" ]; then
+	SEEDS_EXPANDED=$(inheritance ${BASE_SEED})
+	for seed in ${SEEDS_EXPANDED}; do
+		echo "snap: considering ${seed}"
+		file=config/germinate-output/${seed}.snaps
+		[ -e "${file}" ] || continue
+		# extract the first column (snap package name) from germinate's output
+		# translate the human-readable "foo (classic)" into a
+		# more machine readable "foo/classic"
+		seed_snaps=$(sed -rn '1,/-----/d;/-----/,$d; s/(.*) \|.*/\1/; s, \(classic\),/classic,; p' "${file}")
+		for snap in ${seed_snaps}; do
+			echo "snap: found ${snap}"
+			ALL_SNAPS="${ALL_SNAPS:+${ALL_SNAPS} }${snap}"
+		done
+	done
+	echo "${ALL_SNAPS}" > config/seeded-snaps
+fi
+
 export APT_OPTIONS
 
 if [ "$PREINSTALLED" != "true" ] && [ "$LIVE_TASK" ]; then