fix bug in prepare relaease for new packages that have never been released (#21783)

azure-sdk · chidozieononiwu · web-flow · commit 547c5f0fe0d1 · 2021-11-16T12:59:35.000-08:00
Co-authored-by: Chidozie Ononiwu &lt;chononiw@microsoft.com&gt;
diff --git a/eng/common/scripts/Prepare-Release.ps1 b/eng/common/scripts/Prepare-Release.ps1
@@ -113,8 +113,11 @@ Write-Host "Assuming release is in $month with release date $releaseDateString"
 if (Test-Path "Function:GetExistingPackageVersions")
 {
     $releasedVersions = GetExistingPackageVersions -PackageName $packageProperties.Name -GroupId $packageProperties.Group
-    $latestReleasedVersion = $releasedVersions[$releasedVersions.Count - 1]
-    Write-Host "Latest released version: ${latestReleasedVersion}" -ForegroundColor Green
+    if ($null -ne $releasedVersions -and $releasedVersions.Count -gt 0)
+    {
+      $latestReleasedVersion = $releasedVersions[$releasedVersions.Count - 1]
+      Write-Host "Latest released version: ${latestReleasedVersion}" -ForegroundColor Green
+    }
 }
 
 $currentProjectVersion = $packageProperties.Version

Original file line number	Diff line number	Diff line change
`@@ -113,8 +113,11 @@ Write-Host "Assuming release is in $month with release date $releaseDateString"`
`113`	`113`	`if (Test-Path "Function:GetExistingPackageVersions")`
`114`	`114`	`{`
`115`	`115`	`$releasedVersions = GetExistingPackageVersions -PackageName $packageProperties.Name -GroupId $packageProperties.Group`
`116`		`- $latestReleasedVersion = $releasedVersions[$releasedVersions.Count - 1]`
`117`		`- Write-Host "Latest released version: ${latestReleasedVersion}" -ForegroundColor Green`
	`116`	`+ if ($null -ne $releasedVersions -and $releasedVersions.Count -gt 0)`
	`117`	`+ {`
	`118`	`+ $latestReleasedVersion = $releasedVersions[$releasedVersions.Count - 1]`
	`119`	`+ Write-Host "Latest released version: ${latestReleasedVersion}" -ForegroundColor Green`
	`120`	`+ }`
`118`	`121`	`}`
`119`	`122`
`120`	`123`	`$currentProjectVersion = $packageProperties.Version`