build-vm, main.mk, pack: add recovery.tar

recovery.tar needed for tavolga (mipsel).
This commit is the result of transferring the required functionality
from build-mr (mipsel rootfs).
This change uses external tool to build Tavolga-compatible
recovery.tar. This simplifies the logic and avoids having
recovery workdir in the profile.
After this change, m-p will require tavolga-image-tools >= 3.0.

features.in/build-vm/lib/90-build-vm.mk

@@ -25,6 +25,9 @@ VM_SIZE ?= 0
 VM_GZIP_COMMAND ?= gzip
 VM_XZ_COMMAND ?= xz -T0
 
+# tavolga
+RECOVERY_LINE ?= Press ENTER to start
+
 check-sudo:
 	@if ! type -t sudo >&/dev/null; then \
 		echo "** error: sudo not available, see doc/vm.txt" >&2; \
@@ -75,6 +78,16 @@ convert-image/qcow2 convert-image/qcow2c convert-image/vmdk \
 	qemu-img convert $$VM_COMPRESS -O "$$VM_FORMAT" \
 		"$(VM_RAWDISK)" "$(IMAGE_OUTPATH)"
 
+# for tavolga
+convert-image/recovery.tar:
+	build-recovery-tar \
+	    --image-name $(IMAGE_NAME) \
+	    --date $(DATE) \
+	    --compress-command '$(VM_GZIP_COMMAND)' \
+	    --rootfs "$(VM_TARBALL)" \
+	    --output "$(IMAGE_OUTPATH)" \
+	    --line '$(RECOVERY_LINE)'
+
 post-convert:
 	@rm -f "$(VM_RAWDISK)"; \
 	if [ "0$(DEBUG)" -le 1 ]; then rm -f "$(VM_TARBALL)"; fi

features.in/pack/config.mk

@@ -38,9 +38,14 @@ endif
 
 # extensions for buld-vm
 VM_EXTS := .tar .tar.gz .tar.xz .img .qcow2 .qcow2c .vdi .vmdk .vhd
+VM_TAVOLGA_EXTS := .recovery.tar
 
 ifeq (vm,$(IMAGE_CLASS))
 
 $(VM_EXTS:.%=use/pack/%): use/pack; @:
 
+ifeq (mipsel,$(ARCH))
+use/pack/recovery.tar: use/pack/tar; @:
+endif
+
 endif

main.mk

@@ -61,7 +61,8 @@ VE_TARGETS := $(call targets,ve)
 VM_TARGETS := $(call targets,vm)
 DISTROS := $(call addsuffices,$(DISTRO_EXTS),$(DISTRO_TARGETS))
 VES     := $(call addsuffices,$(VE_EXTS),$(VE_TARGETS))
-VMS     := $(call addsuffices,$(VM_EXTS),$(VM_TARGETS))
+VMS     := $(call addsuffices,$(VM_EXTS),$(VM_TARGETS)) \
+ $(call addsuffices,$(VM_TAVOLGA_EXTS), $(filter vm/tavolga-%, $(VM_TARGETS)))
 IMAGES  := $(DISTROS) $(VES) $(VMS)
 
 .PHONY: $(IMAGES) $(DISTRO_TARGETS) $(VE_TARGETS) $(VM_TARGETS)