Write out manifest.

install_and_cache_pkgs.sh

@@ -42,6 +42,10 @@ echo "done."
 
 manifest_filepath="$cache_dir/manifest.log"
 echo -n "Writing package manifest to $manifest_filepath..."
+manifest=
+for package in $packages; do
+  manifest=$manifest,$package:$(dpkg -s $package | grep Version | awk '{print $2}')
+done  
 # Remove trailing comma.
 echo ${manifest:0:-1} > $manifest_filepath
 echo "done."

restore_pkgs.sh

@@ -20,6 +20,7 @@ echo "Reading from manifest..."
 for logline in $(cat $cache_dir/manifest.log | tr ',' '\n' ); do
   echo "- $(echo $logline | tr ':' ' ')"
 done
+echo "done."
 
 # Only search for archived results. Manifest and cache key also live here.
 cache_pkg_filepaths=$(ls -1 $cache_dir/*.tar.gz | sort)