buildcache: Tell servers not to cache index or hash (spack#40339)

GMLC-TDC · Oct 12, 2023 · d9cb1a1 · d9cb1a1
1 parent 01747b5
commit d9cb1a1
Showing 1 changed file with 2 additions and 2 deletions.
diff --git a/lib/spack/spack/binary_distribution.py b/lib/spack/spack/binary_distribution.py
@@ -913,15 +913,15 @@ def _read_specs_and_push_index(file_list, read_method, cache_prefix, db, temp_di
         index_json_path,
         url_util.join(cache_prefix, "index.json"),
         keep_original=False,
-        extra_args={"ContentType": "application/json"},
+        extra_args={"ContentType": "application/json", "CacheControl": "no-cache"},
     )
 
     # Push the hash
     web_util.push_to_url(
         index_hash_path,
         url_util.join(cache_prefix, "index.json.hash"),
         keep_original=False,
-        extra_args={"ContentType": "text/plain"},
+        extra_args={"ContentType": "text/plain", "CacheControl": "no-cache"},
     )