11162: Add logging about checking cache

Arvados-DCO-1.1-Signed-off-by: Peter Amstutz <pamstutz@veritasgenetics.com>

diff --git a/sdk/cwl/arvados_cwl/http.py b/sdk/cwl/arvados_cwl/http.py
index af9bf042e4add94ae1b2443ee37050423a6ee0e7..ab59ad3a5310c753189116e25f8373fd3246a5fa 100644 (file)
--- a/sdk/cwl/arvados_cwl/http.py
+++ b/sdk/cwl/arvados_cwl/http.py
@@ -20,6 +20,8 @@ def fresh_cache(url, properties):
     pr = properties[url]
     expires = None
 
+    logger.debug("Checking cache freshness for %s using %s", url, pr)
+
     if "Cache-Control" in pr:
         if re.match(r"immutable", pr["Cache-Control"]):
             return True