.azurepipelines/templates/platform-build-run-steps.yml: Fetch target branch

Update Platform build steps process to fetch target branch

Cc: Bret Barkelew <Bret.Barkelew@microsoft.com>
Cc: Michael D Kinney <michael.d.kinney@intel.com>
Cc: Liming Gao <gaoliming@byosoft.com.cn>
Signed-off-by: Sean Brogan <sean.brogan@microsoft.com>
Reviewed-by: Michael D Kinney <michael.d.kinney@intel.com>

diff --git a/.azurepipelines/templates/platform-build-run-steps.yml b/.azurepipelines/templates/platform-build-run-steps.yml
index ebf674bfc7d8369939e5227e102cc5cf546b97e2..97e7faa266825563df97284b3e6f05f49e72d159 100644 (file)
--- a/.azurepipelines/templates/platform-build-run-steps.yml
+++ b/.azurepipelines/templates/platform-build-run-steps.yml
@@ -51,6 +51,12 @@ steps:
 # Set default\r
 - bash: echo "##vso[task.setvariable variable=pkg_count]${{ 1 }}"\r
 \r
+# Fetch the target branch so that pr_eval can diff them.\r
+# Seems like azure pipelines/github changed checkout process in nov 2020.\r
+- script: git fetch origin $(System.PullRequest.targetBranch)\r
+  displayName: fetch target branch\r
+  condition: eq(variables['Build.Reason'], 'PullRequest')\r
+\r
 # trim the package list if this is a PR\r
 - task: CmdLine@1\r
   displayName: Check if ${{ parameters.build_pkg }} need testing\r