Fix release note and prebuild scripts

scripts/vsts-prebuild.ps1

@@ -6,7 +6,9 @@ param (
   [Parameter(Mandatory)]
   [string] $IsRtmBuild,
   [Parameter(Mandatory)]
-  $Branch
+  $Branch,
+  [Parameter(Mandatory)]
+  $ForcePreviewOnRelBranch
 )
 
 $TP_ROOT_DIR = (Get-Item (Split-Path $MyInvocation.MyCommand.Path)).Parent.FullName
@@ -17,7 +19,7 @@ $buildPrefix = $TpVersion.Trim()
 
 if ($IsRtmBuild.ToLower() -eq "false")
 {
-  if ($null -ne $Branch -and $Branch -like "refs/heads/rel/*")
+  if ($null -ne $Branch -and $Branch -like "refs/heads/rel/*" -and "false" -eq $ForcePreviewOnRelBranch)
   {
     $BuildSuffix = $BuildSuffix -replace "preview", "release"
   }

scripts/vsts-prebuild.sh

@@ -24,6 +24,10 @@ while [ $# -gt 0 ]; do
             IS_RTM=$2
             shift
             ;;
+        -relpreview)
+            IS_PREVIEW_REL_BRANCH=$2
+            shift
+            ;;
         *)
             break
             ;;
@@ -40,7 +44,7 @@ if [ $IS_RTM == true ]; then
     PACKAGE_VERSION="$TP_BUILD_PREFIX"
     TP_BUILD_SUFFIX=
 else
-    if [ ! -z "$BRANCH" ] && [[ $BRANCH =~ ^refs\/heads\/rel\/.*$ ]]; then
+    if [ ! -z "$BRANCH" ] && [[ $BRANCH =~ ^refs\/heads\/rel\/.*$ ]] && [ $IS_PREVIEW_REL_BRANCH == false ]; then
         TP_BUILD_SUFFIX="${TP_BUILD_SUFFIX/preview/release}"
     fi
 

scripts/write-release-notes.ps1

@@ -23,7 +23,7 @@ $repoUrl = $(if ((git -C $Path remote -v) -match "upstream") {
 
 # list all tags on this branch ordered by creator date to get the latest, stable or pre-release tag.
 # For stable release we choose only tags without any dash, for pre-release we choose all tags.
-$tags = git -C $Path tag -l --sort=creatordate | Where-Object { $_ -match "v\d+\.\d+\.\d+.*" -and (-not $Stable -or $_ -notlike '*-*') }
+$tags = git -C $Path tag -l --sort=refname | Where-Object { $_ -match "v\d+\.\d+\.\d+.*" -and (-not $Stable -or $_ -notlike '*-*') }
 
 if ($EndWithLatestCommit) {
     # in CI we don't have the tag yet, so we show changes between the most recent tag, and this commit
@@ -35,6 +35,7 @@ if ($EndWithLatestCommit) {
 else {
     # normally we show changes between the latest two tags
     $start, $end = $tags | Select-Object -Last 2
+    Write-Host "$start -- $end"
     $tag = $end
 }
 
@@ -95,6 +96,8 @@ $issues = $log | ForEach-Object {
     }
 }
 
+$vsixDropBranch = $sourceBranch -replace "rel/", ""
+
 $output = @"
 
 See the release notes [here](https://github.com/microsoft/vstest-docs/blob/main/docs/releases.md#$($v -replace '\.')).
@@ -110,7 +113,7 @@ See full log [here]($repoUrl/compare/$start...$tag)
 
 ### Drops
 
-* TestPlatform vsix: [$v](https://vsdrop.corp.microsoft.com/file/v1/Products/DevDiv/microsoft/vstest/$sourceBranch/$b;/TestPlatform.vsix)
+* TestPlatform vsix: [$v](https://vsdrop.corp.microsoft.com/file/v1/Products/DevDiv/microsoft/vstest/$vsixDropBranch/$b;/TestPlatform.vsix)
 * Microsoft.TestPlatform.ObjectModel : [$v](https://www.nuget.org/packages/Microsoft.TestPlatform.ObjectModel/$v)
 "@