Put in a retry limit for fetching logs

Change-Id: Iaf82e449fa8d006d6d7c85a6774bb92fe68d1736

jenkins/scripts/grab_console_log.sh

@@ -1,5 +1,7 @@
 #!/bin/bash -xe
 
+RETRY_LIMIT=20
+
 # Keep fetching until this uuid to appear in the logs before uploading
 END_UUID=$(cat /proc/sys/kernel/random/uuid)
 
@@ -9,15 +11,25 @@ echo "Grabbing consoleLog ($END_UUID)"
 rm -f /tmp/console.txt /tmp/console.html
 
 # Get the plain text version (does not contain links or timestamps)
+TRIES=0
 console_log_path='consoleText'
 while ! grep -q "$END_UUID" /tmp/console.txt; do
+    TRIES=$((TRIES+1))
+    if [ $TRIES -gt $RETRY_LIMIT ]; then
+        break
+    done
     sleep 3
     wget -c -O /tmp/console.txt --no-check-certificate $BUILD_URL$console_log_path
 done
 
 # Grab the HTML version of the log (includes timestamps)
+TRIES=0
 console_log_path='logText/progressiveHtml'
 while ! grep -q "$END_UUID" /tmp/console.html; do
+    TRIES=$((TRIES+1))
+    if [ $TRIES -gt $RETRY_LIMIT ]; then
+        break
+    done
     sleep 3
     wget -c -O /tmp/console.html --no-check-certificate $BUILD_URL$console_log_path
 done