Try this

get_snapshot

@@ -1,20 +1,17 @@
 #!/bin/bash
 
-tar -cf empty.tar --files-from /dev/null
-
 PROJECT='icingadb-redis'
-package_version="7.0.2"
 
 now=$(date +%s)
 
-version_add_time="${package_version}${now}"
+package_version="7.0.2${now}"
 commit="bogus"
-tarball="empty.tar"
+tarball="icingadb-redis_empty.orig.tar.gz"
-branch="master"
+branch="bogus"
 
 printf '%s\t%s\t%s\t%s' \
-  "${version_add_time}" \
+  "${package_version}" \
   "${commit}" \
   "${tarball}" \
   "${branch}" \
-  > "redis.version"
+  > "${PROJECT}.version"