feat: add ubuntu-oem project for oem images

debian/changelog

@@ -1,3 +1,13 @@
+livecd-rootfs (2.900) UNRELEASED; urgency=medium
+
+  * Add ubuntu-oem build project:
+    - auto/config: Make ubuntu-oem project available, and runs make-hooks like
+      ubuntu-cpc.
+    - live-build/ubuntu-oem: Create the directory for ubuntu-oem project, and
+      link make-hooks from ubuntu-cpc into it.
+
+ -- Yao Wei (魏銘廷) <yao.wei@canonical.com>  Wed, 12 Jul 2023 11:01:07 +0800
+
 livecd-rootfs (2.899) mantic; urgency=medium
 
   * ubuntu-cpc: Revert mount ESP on /boot and bind mount /boot on /boot/efi

live-build/auto/config

@@ -550,6 +550,8 @@ case $IMAGEFORMAT in
 					add_package live casper
 				fi
 				;;
+			ubuntu-oem)
+				;;
 			*)
 				add_package live casper
 				;;
@@ -810,6 +812,30 @@ case $PROJECT in
 		esac
 		;;
 
+	ubuntu-oem)
+		touch config/universe-enabled
+		PASSES_TO_LAYERS="true"
+		#KERNEL_FLAVOURS='oem-22.04'
+		KERNEL_FLAVOURS='generic-hwe-22.04'
+		add_task minimal minimal standard ubuntu-desktop-minimal ubuntu-desktop-minimal-default-languages
+		add_task minimal.standard ubuntu-desktop ubuntu-desktop-default-languages
+		add_task minimal.standard.live ubuntu-live
+		add_package minimal cloud-init
+		remove_package minimal.standard.live ubiquity-frontend-gtk
+		add_snap minimal.standard.live ubuntu-desktop-installer/classic
+
+		cat <<-EOF > config/minimal.standard.catalog-in.yaml
+			name: "Ubuntu Desktop for OEM"
+			description: >-
+			  Ubuntu Desktop for OEM preinstallation.
+			id: ubuntu-desktop-oem
+			type: fsimage-layered
+			variant: desktop
+			locale_support: none
+			default: yes
+		EOF
+		;;
+
 	kubuntu|kubuntu-dvd)
 		add_task install minimal standard
 		add_task install kubuntu-desktop
@@ -1529,7 +1555,8 @@ EOF
 		fi
 		;;
 
-	ubuntu-cpc:*|ubuntu-server:live|ubuntu:desktop-preinstalled|ubuntu-wsl:*|ubuntu-mini-iso:*|ubuntu:canary)
+	ubuntu-cpc:*|ubuntu-server:live|ubuntu:desktop-preinstalled| \
+		ubuntu-wsl:*|ubuntu-mini-iso:*|ubuntu:canary|ubuntu-oem:*)
 		# Ensure that most things e.g. includes.chroot are copied as is
 		for entry in /usr/share/livecd-rootfs/live-build/${PROJECT}/*; do
 			case $entry in
@@ -1545,7 +1572,7 @@ EOF
 			esac
 		done
 
-		if [ "$PROJECT" = "ubuntu-cpc" ]; then
+		if [ "$PROJECT" = "ubuntu-cpc" ] || [ "$PROJECT" = "ubuntu-oem" ] ; then
 			case ${IMAGE_TARGETS:-} in
 				"")
 					config/hooks.d/make-hooks --hooks-dir config/hooks all

live-build/ubuntu-oem/hooks.d/make-hooks

@@ -0,0 +1 @@
+../../ubuntu-cpc/hooks.d/make-hooks