break while loop when next_page is empty

ustclug · Jan 22, 2024 · db37321 · db37321
1 parent 737809a
commit db37321
Showing 1 changed file with 4 additions and 1 deletion.
diff --git a/common.sh b/common.sh
@@ -8,8 +8,11 @@ docker-tags(){
         return 1
     fi
     grep -oP '(?<="name":").+?(?=")' <(echo "$tags_js")
-    while next_page=$(grep -oP '(?<="next":").+?(?=")' <(echo "$tags_js") | sed 's/\\u0026/\&/' )
+    while next_page=$(grep -oP '(?<="next":").+?(?=")' <(echo "$tags_js") | sed 's/\\u0026/\&/' | xargs)
     do
+        if [[ -z "$next_page" || "$next_page" == "null" ]]; then
+            break
+        fi
         tags_js=$(curl -sSL "$next_page")
         if [ $? -ne 0 ]; then
             echo "curl $next_page failed" >&2