From 98e025574135e6eab94939c11c6842d38984bb3d Mon Sep 17 00:00:00 2001
From: Elan Ruusamäe
Date: Sun, 29 Aug 2021 16:08:47 +0300
Subject: Add support to re-use container with --keep-container


diff --git a/bin/cleanbuild-docker.sh b/bin/cleanbuild-docker.sh
index 8aa1482..f559e17 100755
--- a/bin/cleanbuild-docker.sh
+++ b/bin/cleanbuild-docker.sh
@@ -53,20 +53,32 @@ tmpfs() {
 	echo "--tmpfs $home/rpm/BUILD:rw,exec,nosuid,size=$TMPFS"
 }
 
+have_container() {
+    local name="$1" id
+
+    id=$(docker ps -a -f "label=cleanbuild=$name" --format '{{.ID}}')
+
+    test -n "$id"
+}
+
 create_container() {
-	notice "Clean up old container: $name"
-	docker kill $name >/dev/null 2>&1 || :
-	docker rm $name >/dev/null 2>&1 || :
+	if ! $KEEP_CONTAINER; then
+		notice "Clean up old container: $name"
+		docker kill $name >/dev/null 2>&1 || :
+		docker rm $name >/dev/null 2>&1 || :
+	fi
 
 	install -d $topdir/logs
 
 	# start the container
-	TMPFS_SIZE=$TMPFS \
-	PACKAGE_NAME=$PACKAGE_NAME \
-	docker-compose run --rm -d \
-		--name=$name \
-		--label=cleanbuild=$PACKAGE_NAME \
-		cleanbuild
+	if !  have_container "$PACKAGE_NAME"; then
+		TMPFS_SIZE=$TMPFS \
+		PACKAGE_NAME=$PACKAGE_NAME \
+		docker-compose run --rm -d \
+			--name=$name \
+			--label=cleanbuild=$PACKAGE_NAME \
+			cleanbuild
+	fi
 
 	notice "Setup the homedir"
 	docker exec --user=root -w / $name usermod -d $home builder
@@ -89,6 +101,7 @@ package_prepare() {
 	fi
 
 	notice "Fetch package sources"
+	docker exec --user=root -w / $name setfacl -x u:builder /etc/resolv.conf
 	docker exec $name builder -g $PACKAGE_NAME
 
 	if ! $NETWORKING; then
-- 
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