Add the building of an tar file.

Signed-off-by: Tim 'mithro' Ansell <tansell@google.com>
diff --git a/open_pdks/continous.cfg b/open_pdks/continous.cfg
index 45c1a75..9d6a41d 100644
--- a/open_pdks/continous.cfg
+++ b/open_pdks/continous.cfg
@@ -4,8 +4,10 @@
 
 timeout_mins: 4320
 
-#action {
-#  define_artifacts {
-#    # File types
-#  }
-#}
+action {
+  define_artifacts {
+    # File types
+    regex: "out/*.tar.xz"
+    strip_prefix: "out"
+  }
+}
diff --git a/open_pdks/run.sh b/open_pdks/run.sh
index 42dd042..a205d4b 100755
--- a/open_pdks/run.sh
+++ b/open_pdks/run.sh
@@ -23,6 +23,8 @@
 
 SCRIPT_DIR_REL="$(realpath $SCRIPT_DIR --relative-to=$PWD)"
 
+TOP_DIR=$PWD
+
 echo
 echo "              Current directory: $PWD"
 echo "                         Script: $SCRIPT_SRC"
@@ -74,3 +76,8 @@
 
 # Tar up result.
 find out/pdk-* | sort | tee pdk.files
+(
+	cd out/pdk-all
+	tar -cvf --xz $TOP_DIR/out/pdk-SKY130A.tar.xz .
+)
+du -h $TOP_DIR/out/*.tar.xz