Abort saving releases to CDN earlier (and explicitly for PRs)

bin/upload-to-cdn.sh

@@ -39,19 +39,22 @@ function fatal () {
 }
 
 pushd "${__root}" > /dev/null 2>&1
-  if [ -z "${EDGLY_KEY:-}" ] && [ -f ./env.sh ]; then
-    source ./env.sh
-  fi
-
-  [ -z "${EDGLY_KEY:-}" ] && fatal "Unable to find or source EDGLY_KEY env var"
-
   if [ "${TRAVIS:-}" = "true" ]; then
+    if [ "${TRAVIS_PULL_REQUEST:-}" = "true" ]; then
+      echo "On Travis (TRAVIS is '${TRAVIS}'), I'm not pushing releases to the CDN for pull requests (TRAVIS_PULL_REQUEST is '${TRAVIS_PULL_REQUEST}')"
+      exit 0
+    fi
     if [ -z "${TRAVIS_TAG:-}" ]; then 
       echo "On Travis (TRAVIS is '${TRAVIS}'), I'm only pushing releases to the CDN when a tag is being built (TRAVIS_TAG is '${TRAVIS_TAG}')"
-      exit 0;
+      exit 0
     fi
   fi
 
+  if [ -z "${EDGLY_KEY:-}" ] && [ -f ./env.sh ]; then
+    source ./env.sh
+  fi
+  [ -z "${EDGLY_KEY:-}" ] && fatal "Unable to find or source EDGLY_KEY env var"
+
   type aws || pip install --user awscli
 
   remoteVersion="${1:-}"