Update Collect ChangeLogLogic

eng/common/scripts/Collect-ChangeLogs.ps1

@@ -1,26 +1,41 @@
 [CmdletBinding()]
 param(
   [Parameter(Mandatory=$true)]
-  [ValidateRange(1, 12)]
-  [int] $Month
+  [String] $FromDate # In the format "yyyy-MM-dd"
 )
 
 . (Join-Path $PSScriptRoot common.ps1)
 
 $releaseHighlights = @{}
 
-$date = Get-Date -Month $month -Format "yyyy-MM"
-$date += "-\d\d"
+if ($FromDate -as [DateTime])
+{
+    $date = ([DateTime]$FromDate).ToString($CHANGELOG_DATE_FORMAT)
+}
+else {
+    LogWarning "Invalid date passed. Switch to using the current date"
+    $date = Get-Date -Format $CHANGELOG_DATE_FORMAT
+}
 
 $allPackageProps = Get-AllPkgProperties
 
 foreach ($packageProp in $allPackageProps) {
-    $changeLogEntries = Get-ChangeLogEntries -ChangeLogLocation $packageProp.ChangeLogPath
+    $changeLogLocation = $packageProp.ChangeLogPath
+    if (!(Test-Path $changeLogLocation))
+    {
+        continue
+    }
+    $changeLogEntries = Get-ChangeLogEntries -ChangeLogLocation $changeLogLocation
     $packageName = $packageProp.Name
     $serviceDirectory = $packageProp.ServiceDirectory
 
     foreach ($changeLogEntry in $changeLogEntries.Values) {
-        if ($changeLogEntry.ReleaseStatus -notmatch $date)
+        if ([System.String]::IsNullOrEmpty($changeLogEntry.ReleaseStatus))
+        {
+            continue;
+        }
+        $ReleaseStatus = $changeLogEntry.ReleaseStatus.Trim("(",")")
+        if (!($ReleaseStatus -as [DateTime]) -or $ReleaseStatus -lt $date)
         {
             continue;
         }