Merge pull request #34223 from facebook/fix/hermes_in_release

Fix/hermes in release

.circleci/config.yml

@@ -937,8 +937,17 @@ jobs:
           name: Download Hermes tarball
           command: |
             node scripts/hermes/prepare-hermes-for-build
-            cp sdks/download/* $HERMES_WS_DIR/download/.
-            cp -r sdks/hermes/* $HERMES_WS_DIR/hermes/.
+
+            # If Hermes is not built from source, we don't have these folders.
+            DOWNLOAD_FOLDER=sdks/download/
+            if [[ -d $DOWNLOAD_FOLDER ]]; then
+              cp $DOWNLOAD_FOLDER* $HERMES_WS_DIR/download/.
+            fi
+
+            HERMES_FOLDER=sdks/hermes/
+            if [[ -d $HERMES_FOLDER ]]; then
+              cp -r $HERMES_FOLDER* $HERMES_WS_DIR/hermes/.
+            fi
       - save_cache:
           key: v1-hermes-{{ .Environment.CIRCLE_JOB }}-{{ checksum "/tmp/hermes/hermesversion" }}
           paths:

scripts/hermes/hermes-utils.js

@@ -192,6 +192,7 @@ function isOnAReleaseTag() {
 
 function shouldBuildHermesFromSource() {
   const hermesTag = readHermesTag();
+
   return (
     isOnAReleaseBranch() ||
     isOnAReleaseTag() ||