From 88baafbdd68cbd79362502500ef042e482b86657 Mon Sep 17 00:00:00 2001
From: Andrew Cady <d@jerkface.net>
Date: Thu, 14 May 2020 15:39:30 -0400
Subject: add "patchroot.sh" mechanism

---
 .gitignore   |  1 +
 Makefile     | 41 ++++++++++++++++++++++++++++++++---------
 patchroot.sh | 13 +++++++++++++
 3 files changed, 46 insertions(+), 9 deletions(-)
 create mode 100644 patchroot.sh

diff --git a/.gitignore b/.gitignore
index 70a7dc0..34734ec 100644
--- a/.gitignore
+++ b/.gitignore
@@ -47,3 +47,4 @@ patched.iso
 rootfs/samizdat.patch.btrfs
 rootfs/samizdat.seed.btrfs
 rootfs/seed.iso
+apt-get-update-stamp
diff --git a/Makefile b/Makefile
index 03e748d..406022b 100644
--- a/Makefile
+++ b/Makefile
@@ -78,10 +78,12 @@ $(conf_files_out): $(conf_files_in) ./src/generate-network-filter.sh
 
 static_conf_files = conf/torrc conf/nbd-server conf/postfix_main.cf
 
+SUDO_MAKE = sudo MAKEFLAGS="$$MAKEFLAGS" $(MAKE)
+
 .PHONY: install-configuration install-bootserver start-bootserver
 install-bootserver:
 	sudo initrd.sh
-	sudo -E $(MAKE) instdir=/ real-install-bootserver start-bootserver
+	$(SUDO_MAKE) instdir=/ real-install-bootserver start-bootserver
 
 start-bootserver:
 	ifup --force br0
@@ -125,7 +127,7 @@ export rootfs
 .PHONY: rootfs
 rootfs:
 	[ -e install-submodules-stamp ] || make install-submodules-stamp
-	[ -e install-stamp ] || sudo make install-stamp
+	[ -e install-stamp ] || $(SUDO_MAKE) install-stamp
 	$(MAKE) -C rootfs
 	sudo mkdir -p /srv/nbd
 	sudo ln -sf "$$PWD"/rootfs/$(rootfs).btrfs /srv/nbd/samizdat.btrfs
@@ -174,7 +176,7 @@ get_min_size="$$(btrfs inspect-internal min-dev-size --id 1 $@.mnt | (read b _;
 
 rootfs/samizdat.seed.btrfs: rootfs/samizdat.btrfs
 ifneq ($(shell id -u),0)
-	sudo make $@
+	$(SUDO_MAKE) $@
 else
 	cp --reflink $< $@~tmp
 	btrfstune -f -S0 $@~tmp
@@ -188,22 +190,43 @@ else
 	mv $@~tmp $@
 endif
 
-rootfs/samizdat.patch.btrfs: rootfs/samizdat.seed.btrfs
+FORCE:
+
+debian_dist = stretch
+
+apt_list_files = $(addprefix /./var/lib/apt/lists/, \
+  *$(debian_dist)_main_binary* \
+  *$(debian_dist)_main_i18n_Translation-en \
+  *$(debian_dist)_updates_main_binary* \
+  *$(debian_dist)_updates_main_i18n_Translation-en \
+  *dists_$(debian_dist)_*Release*)
+
+stale = [ ! -e $@ ] || [ $$(( $$(date +%s) - $$(date -r $@ +%s) )) -gt 36000 ]
+
+apt-get-update-stamp: FORCE
+	@if $(stale); then set -x; sudo apt-get update && touch $@; fi
+
+rootfs/samizdat.patch.btrfs: rootfs/samizdat.seed.btrfs apt-get-update-stamp \
+  $(if $(INTERACTIVE_CHROOT),FORCE,patchroot.sh)
 ifneq ($(shell id -u),0)
-	sudo make $@
+	$(SUDO_MAKE) $@
 else
 	rm -f $@~tmp
 	touch $@~tmp
 	fallocate -l $(samizdat_btrfs_patch_size) $@~tmp
 	test -d $@.mnt || mkdir $@.mnt
 	! mountpoint -q $@.mnt || umount $@.mnt
-	mount -o ro -t btrfs $< $@.mnt
+	mount -o compress,ro -t btrfs $< $@.mnt
 	a=$(get_loop_dev); [ -z "$$a" ] || losetup -d $$a
 	losetup -f $@~tmp
 	btrfs device add $(get_loop_dev) $@.mnt
-	mount -o rw,remount $@.mnt
-	chroot $@.mnt /bin/sh -c 'echo samizdat > /etc/hostname'
+	mount -o compress,rw,remount $@.mnt
+	rsync -Ra $(apt_list_files) $@.mnt/
+ifdef INTERACTIVE_CHROOT
 	chroot $@.mnt bash -i
+else
+	chroot $@.mnt sh < patchroot.sh
+endif
 	umount $@.mnt
 	losetup -f $<
 	btrfstune -S1 $@~tmp
@@ -279,7 +302,7 @@ rootfs/samizdat.btrfs:
 .PHONY: install
 install:
 	[ -e install-submodules-stamp ] || make install-submodules-stamp
-	sudo make install-stamp
+	$(SUDO_MAKE) install-stamp
 
 install-submodules-stamp: install-submodules
 	touch $@
diff --git a/patchroot.sh b/patchroot.sh
new file mode 100644
index 0000000..54a37e2
--- /dev/null
+++ b/patchroot.sh
@@ -0,0 +1,13 @@
+#!/bin/sh
+echo samizdat > /etc/hostname
+cat <<END > /etc/apt/sources.list
+deb  http://httpredir.debian.org/debian  stretch            main  #contrib  non-free
+deb  http://security.debian.org          stretch/updates    main  #contrib  non-free
+#deb http://httpredir.debian.org/debian  stretch-backports  main  #contrib  non-free
+END
+
+#apt-get update
+cat /var/lib/apt/lists/*_Packages | dpkg --update-avail -
+
+#apt-get -yd install baresip
+apt-mark install baresip
-- 
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