Clean up sbuild fstab configuration

Addresses #9 'Can bindmounts be done better?'

Dockerfile

@@ -34,9 +34,6 @@ RUN	wget -O - -q http://archive.raspbian.org/raspbian.public.key | \
 
 ############################
 # Sbuild configuration:
-# - bind mounts
-RUN	echo "/srv\t\t/srv\t\tnone\trw,bind\t\t0\t0" \
-	    >> /etc/schroot/default/fstab
 # - aufs on tmpfs config
 ADD	schroot-04tmpfs /etc/schroot/setup.d/04tmpfs
 

scripts/sbuild-fstab

@@ -0,0 +1,13 @@
+# fstab: static file system information for chroots.		-*-conf-*-
+# Note that the mount point will be prefixed by the chroot path
+# (CHROOT_PATH)
+#
+# <file system> <mount point>   <type>  <options>       <dump>  <pass>
+/proc           /proc           none    rw,bind         0       0
+/sys            /sys            none    rw,bind         0       0
+/dev            /dev            none    rw,bind         0       0
+/dev/pts        /dev/pts        none    rw,bind         0       0
+/home           /home           none    rw,bind         0       0
+/tmp            /tmp            none    rw,bind         0       0
+# The main script/build directory
+/srv		/srv		none	rw,bind		0	0

scripts/sbuild.sh

@@ -51,6 +51,9 @@ sbuild_install_sbuild_conf() {
 	-e "s/@/\\\\@/g"
     debug "      Contents of /etc/sbuild/sbuild.conf:"
     run_debug grep -v -e '^$' -e '^#' /etc/sbuild/sbuild.conf
+
+    debug "    Installing fstab into /etc/schroot/sbuild/fstab"
+    run cp $SCRIPTS_DIR/sbuild-fstab /etc/schroot/sbuild/fstab
 }
 
 sbuild_chroot_save_keys() {
@@ -107,14 +110,6 @@ sbuild_save_config() {
 	run_user cp $SBUILD_CHROOT_GEN \
 	    $CONFIG_DIR/chroot.d/$SBUILD_CHROOT
 
-	if ! grep -q setup.fstab $CONFIG_DIR/chroot.d/$SBUILD_CHROOT; then
-	    debug "    Adding fstab setting to schroot config"
-	    run_user sed -i $CONFIG_DIR/chroot.d/$SBUILD_CHROOT \
-		-e '"$ a setup.fstab=default/fstab"'
-	else
-	    debug "      (Found fstab setting in schroot config)"
-	fi
-
 	if test $DISTRO != $CODENAME; then
 	    debug "    Patching schroot config name"
 	    run sed -i $CONFIG_DIR/chroot.d/$SBUILD_CHROOT \
@@ -225,6 +220,7 @@ sbuild_chroot_setup() {
 
 sbuild_configure_package() {
     sbuild_chroot_init
+    sbuild_install_sbuild_conf
     sbuild_install_config
 
     # FIXME run with union-type=aufs in schroot.conf
@@ -276,6 +272,7 @@ sbuild_shell() {
     msg "Starting shell in sbuild chroot $SBUILD_CHROOT"
 
     sbuild_chroot_init
+    sbuild_install_sbuild_conf
     sbuild_install_config
     if test $DOCKER_UID = 0; then
 	run sbuild-shell $SBUILD_CHROOT