feat(test): add filter to regression-testing.

Author: fky2015

Diff for: scripts/regression-testing.zsh

@@ -53,11 +53,17 @@ echo current dir: $PWD
 
 for i ($ZIP_URL){
   if [[ $i == *.zip ]] {
-    echo "============== start $i ==============="
     file_name=${i:t}
     unzip -o $file_name
     dir_name=${file_name%.zip}
 
+    if [[ -n $FILTER ]] && [[ $FILTER != $dir_name ]] {
+      # skip this file
+      continue
+    }
+
+    echo "============== start $i ==============="
+
     # build latest release version on github
     cd $dir_name
     rm -f '*.pdf *.aux'