Makefile: use fsmgr to build samizdat.patch.btrfs

1 files changed, 23 insertions, 44 deletions

diff --git a/Makefile b/Makefile
index 35586da..35294b4 100644
--- a/Makefile
+++ b/Makefile
@@ -140,16 +140,26 @@ update-submodules:
 install-submodules: cmd=install
 install-submodules: update-submodules $(INSTALL_SUBMODULES)
 
-rootfs = samizdat
-export rootfs
+rootfs = samizdat.btrfs
+patchfs = $(patsubst %.btrfs,%.patch.btrfs,$(rootfs))
+rootfs_verity = rootfs/$(rootfs).verity
 
-.PHONY: rootfs
-rootfs:
+.PHONY: rootfs rootfs-deps
+rootfs-deps:
         [ -e install-submodules-stamp ] || make install-submodules-stamp
         [ -e install-stamp ] || $(SUDO_MAKE) install-stamp
-        $(MAKE) -C rootfs
+
+btrfs_images = $(addprefix rootfs/, $(rootfs) $(patchfs))
+rootfs: rootfs-deps $(btrfs_images) $(rootfs_verity)
         sudo mkdir -p /srv/nbd
-        sudo ln -sf "$$PWD"/rootfs/$(rootfs).btrfs /srv/nbd/samizdat.btrfs
+        sudo ln -sf "$$PWD"/rootfs/$(rootfs) /srv/nbd/samizdat.btrfs
+ifneq (,$(patchfs))
+        sudo ln -sf "$$PWD"/rootfs/$(patchfs) /srv/nbd/samizdat.patch.btrfs
+endif
+
+FORCE:
+$(btrfs_images): FORCE
+        $(MAKE) -C rootfs $(notdir $@)
 
 boot: rootfs
         sudo SLOW_BOOT=y qemu.sh
@@ -193,12 +203,14 @@ get_loop_dev="$$(sudo losetup -n -O name -j $@~tmp)"
 get_backing_file="$$(sudo losetup -n -O back-file -j $@~tmp)"
 get_min_size="$$(btrfs inspect-internal min-dev-size --id 1 $@.mnt | (read b _; echo $$b))"
 
-%.btrfs.verity: %.btrfs
-        sudo veritysetup format $< $@ > $@.log
+%.verity: %
+        sudo veritysetup format $< $@~tmp > $@.log~tmp
+        mv $@.log~tmp $@.log
+        mv $@~tmp $@
         sudo chmod 644 $@
         h=$$(sed -ne 's/^Root hash:[ \t]*//p' $@.log) && [ "$$h" ]
 
-%.btrfs.verity.log.asc: %.btrfs.verity.log
+%.verity.log.asc: %.verity.log
         sudo gpg --armor --detach-sign $^
 
 rootfs/samizdat.seed.btrfs: rootfs/samizdat.btrfs
@@ -218,8 +230,6 @@ else
         mv $@~tmp $@
 endif
 
-FORCE:
-
 debian_dist := $(shell lsb_release -cs)
 
 apt_list_files = $(addprefix /./var/lib/apt/lists/, \
@@ -231,37 +241,10 @@ apt_list_files = $(addprefix /./var/lib/apt/lists/, \
 
 stale = [ ! -e $@ ] || [ $$(( $$(date +%s) - $$(date -r $@ +%s) )) -gt 36000 ]
 
-apt-get-update-stamp: FORCE
+.PHONY: apt-get-update-stamp
+apt-get-update-stamp:
         @if $(stale); then set -x; sudo apt-get update && touch $@; fi
 
-rootfs/samizdat.patch.btrfs: rootfs/samizdat.seed.btrfs \
-  $(if $(INTERACTIVE_CHROOT),FORCE,rootfs/patchroot.sh)
-ifneq ($(shell id -u),0)
-        $(SUDO_MAKE) $@
-else
-        rm -f $@~tmp
-        touch $@~tmp
-        fallocate -l $(samizdat_btrfs_patch_size) $@~tmp
-        test -d $@.mnt || mkdir $@.mnt
-        ! mountpoint -q $@.mnt || umount $@.mnt
-        mount -o compress,ro -t btrfs $< $@.mnt
-        a=$(get_loop_dev); [ -z "$$a" ] || losetup -d $$a
-        losetup -f $@~tmp
-        btrfs device add $(get_loop_dev) $@.mnt
-        mount -o compress,rw,remount $@.mnt
-        $(SUDO_MAKE) apt-get-update-stamp
-        rsync -Ra $(apt_list_files) $@.mnt/
-ifdef INTERACTIVE_CHROOT
-        chroot $@.mnt bash -i
-else
-        chroot $@.mnt sh < rootfs/patchroot.sh
-endif
-        umount $@.mnt
-        losetup -f $<
-        btrfstune -S1 $@~tmp
-        mv $@~tmp $@
-endif
-
 samizdat.iso: patched.iso
         cp --reflink $< $@
 
@@ -326,10 +309,6 @@ rootfs/seed.iso: $(addprefix rootfs/samizdat.seed.btrf, s \
                 -follow default
         mv $@~tmp $@
 
-rootfs/samizdat.btrfs:
-        make -C rootfs
-
-
 .PHONY: install
 install:
         [ -e install-submodules-stamp ] || make install-submodules-stamp