Now generate appspot description from git log.

misc/git/createcl

@@ -14,11 +14,29 @@ fi
 
 # if user specified --rev, we're not adding the default one
 rev="--rev master"
+rev_param="master"
+rev_param_is_next=false
 for i in $* ; do
-  if [ "$i" == "--rev" ]; then
-    rev=""
+  if [ "$rev_param_is_next" == "true" ]; then
+    rev_param=$i
+    rev_param_is_next=false
+  else
+    if [ "$i" == "--rev" ]; then
+      rev=""
+      rev_param_is_next=true
+    fi
   fi
 done
 
+# Build the message automatically from the git log.
+# the rev_param will be just the original branch / change, or a set of
+# two changes separated by ':'. For git log, we'll need both separated
+# by '..'
+if ! ( echo $rev_param | grep : ) ; then
+  rev_param=${rev_param}:
+fi
+git_log=`echo $rev_param | sed -n 's/:/../p'`
+git log $git_log > /tmp/createcl.msg
+
 echo "Visit https://accounts.google.com/b/0/IssuedAuthSubTokens to generate an app specific password."
-upload.py $rev -y -s codereview.appspot.com -e ${USER}@google.com --cc yt-vt-issues@google.com --send_mail $*
+echo upload.py $rev -y -s codereview.appspot.com -e ${USER}@google.com --cc yt-vt-issues@google.com --send_mail -F /tmp/createcl.msg $*