make apt-cache opt-in; add contrib and non-free by default

config

@@ -27,7 +27,7 @@ vars+=(usercredentials rootcredentials)
 arrs+=(core_packages base_packages purge_packages blend_packages)
 
 ## enable local apt cache
-APT_CACHE=1
+APT_CACHE=0
 aptcachedir="$LIBPATH/apt-cache"
 ## key used to sign the cache's Release
 aptcachegpg="0xdeadbeefdeadbeef"
@@ -36,7 +36,7 @@ os="devuan"
 release="jessie"
 version="1.0.0"
 mirror="http://auto.mirror.devuan.org/merged"
-section="main"
+section="main contrib non-free"
 
 image_name="${os}_${release}_${version}_${arch}"
 [[ -n "$blend_name"  ]] && image_name="${image_name}_${blend_name}"

zlibs/helpers

@@ -275,6 +275,7 @@ chroot-script() {
 			local script="$2"
 			devprocsys mount "$strapdir" || zerr
 			dpkgdivert on "$strapdir"    || zerr
+			[[ "$APT_CACHE" = 1 ]] && { aptcache on "$strapdir/mnt"  || zerr }
 
 			## logging
 			sudo sed -i "$strapdir/$script" \
@@ -285,6 +286,7 @@ chroot-script() {
 			sudo -E chroot "$strapdir" "/$script" || zerr
 			sudo mv -f "$strapdir/${script}.log" "$R/log/"
 
+			[[ "$APT_CACHE" = 1 ]] && { aptcache off "$strapdir/mnt" || zerr }
 			dpkgdivert off "$strapdir"    || zerr
 			devprocsys umount "$strapdir" || zerr
 			;;