From 0275f2b6591550db31b4718746f8099748249981 Mon Sep 17 00:00:00 2001
From: Zelin Hao <zelinhao@amazon.com>
Date: Wed, 17 Jan 2024 16:33:34 -0800
Subject: [PATCH] Default previous build id

Signed-off-by: Zelin Hao <zelinhao@amazon.com>
---
 vars/retrievePreviousBuild.groovy | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/vars/retrievePreviousBuild.groovy b/vars/retrievePreviousBuild.groovy
index b37728aff..20539d81f 100644
--- a/vars/retrievePreviousBuild.groovy
+++ b/vars/retrievePreviousBuild.groovy
@@ -26,16 +26,17 @@ void call(Map args = [:]) {
     def DISTRIBUTION_ARCHITECTURE = args.architecture
     def distribution = args.distribution
     def prefixPath = "${WORKSPACE}/download"
+    def previousBuildId = args.previousBuildId ? args.previousBuildId : "latest"
     def DISTRIBUTION_BUILD_NUMBER
 
-    if (args.previousBuildId.equalsIgnoreCase("latest")) {
+    if (previousBuildId.equalsIgnoreCase("latest")) {
         DISTRIBUTION_BUILD_NUMBER = sh(
                 script:  "curl -sL https://ci.opensearch.org/ci/dbc/${DISTRIBUTION_JOB_NAME}/${version}/index.json | jq -r \".latest\"",
                 returnStdout: true
         ).trim()
         //Once we have new index.json, URL will be changed to: https://ci.opensearch.org/ci/dbc/${DISTRIBUTION_JOB_NAME}/${version}/index/${platform}/${architecture}/${distribution}/index.json
     } else {
-        DISTRIBUTION_BUILD_NUMBER = args.previousBuildId
+        DISTRIBUTION_BUILD_NUMBER = previousBuildId
     }
 
     def artifactPath = "${DISTRIBUTION_JOB_NAME}/${version}/${DISTRIBUTION_BUILD_NUMBER}/${DISTRIBUTION_PLATFORM}/${DISTRIBUTION_ARCHITECTURE}/${distribution}"