Build minimized images in a 1GiB image

live-build/auto/config

@@ -717,6 +717,11 @@ echo "SUBPROJECT=\"${SUBPROJECT:-}\"" >> config/chroot
 echo "LB_BINARY_HOOKS=\"$BINARY_HOOKS\"" >> config/binary
 echo "BUILDSTAMP=\"$NOW\"" >> config/binary
 echo "SUBPROJECT=\"${SUBPROJECT:-}\"" >> config/binary
+if [ "${SUBPROJECT:-}" = minimized ]; then
+	# try building minimized images in a 1GiB image but still allow overriding
+	# IMAGE_SIZE in lb build
+	echo 'IMAGE_SIZE=${IMAGE_SIZE:-'$((1024*1024*1024))'}' >> config/binary
+fi
 
 case $ARCH+$SUBARCH in
 	armhf+raspi2)

live-build/ubuntu-cpc/hooks/032-disk-image.binary

@@ -3,10 +3,10 @@
 IMAGE_STR="# CLOUD_IMG: This file was created/modified by the Cloud Image build process"
 FS_LABEL="cloudimg-rootfs"
 
-. config/functions
-
 . config/binary
 
+. config/functions
+
 BOOTPART_START=
 BOOTPART_END=
 BOOT_MOUNTPOINT=

live-build/ubuntu-cpc/hooks/033-disk-image-uefi.binary

@@ -12,6 +12,8 @@ esac
 IMAGE_STR="# CLOUD_IMG: This file was created/modified by the Cloud Image build process"
 FS_LABEL="cloudimg-rootfs"
 
+. config/binary
+
 . config/functions
 
 create_partitions() {

live-build/ubuntu-cpc/hooks/034-disk-image-ppc64el.binary

@@ -10,6 +10,8 @@ esac
 IMAGE_STR="# CLOUD_IMG: This file was created/modified by the Cloud Image build process"
 FS_LABEL="cloudimg-rootfs"
 
+. config/binary
+
 . config/functions
 
 create_partitions() {