Add alternate code path for Get-cpp-PackageInfoFromRepo (#1762)

* Add alternate code path for Get-cpp-PackageInfoFromRepo

* Use Join-Path rather than slashes

* Remove quotes from Join-Path arguments

eng/scripts/Get-PkgVersion.ps1

@@ -7,26 +7,36 @@ param (
     [string] $PackageName
 )
 
-. ${PSScriptRoot}/SdkVersion-Common.ps1
+$repoRoot = Resolve-Path "$PSScriptRoot/../..";
+. (Join-Path ${repoRoot} eng common scripts logging.ps1)
+. (Join-Path ${repoRoot} eng scripts SdkVersion-Common.ps1)
 
 $versionFileLocation = Get-VersionHppLocaiton `
     -ServiceDirectory $ServiceDirectory `
     -PackageName $PackageName
 
 if (!$versionFileLocation) {
-    $fallback = Get-Content $RepoRoot/sdk/$ServiceDirectory/$PackageName/version.txt
+    $fallbackpath = Join-Path $RepoRoot sdk $ServiceDirectory $PackageName version.txt
+    if (!(Test-Path $fallbackpath))
+    {
+        LogWarning "Failed to retrieve package version. No version file found."
+        return $null
+    }
+
+    $fallback = Get-Content $fallbackpath
     if ($fallback) {
         return $fallback
     } else {
-        Write-Error "Cannot locate package version"
-        exit 1
+        LogWarning "Cannot locate package version"
+        return $null
     }
 }
 
 $versionFileContents = Get-Content $versionFileLocation -Raw
 
 if (!($versionFileContents -match $VersionRegex)) {
-    Write-Error "does not match version information schema"
+    LogWarning "does not match version information schema"
+    return $null
 }
 
 $VersionString = if ($Matches.prerelease) {

eng/scripts/Language-Settings.ps1

@@ -12,12 +12,23 @@ function Get-cpp-PackageInfoFromRepo($pkgPath, $serviceDirectory, $pkgName)
   # Test if the package path ends with the package name (e.g. sdk/storage/azure-storage-common)
   # This function runs in a loop where $pkgPath might be the path to the package and must return 
   # $null in cases where $pkgPath is not the path to the package specified by $pkgName
-  if ($pkgName -ne (Split-Path -Leaf $pkgPath)) { 
+  if ($pkgName -and ($pkgName -ne (Split-Path -Leaf $pkgPath))) { 
     return $null
   }
 
+  if (!$pkgName)
+  {
+    $pkgName = Split-Path -Leaf $pkgPath
+  }
+
   $packageVersion = & $PSScriptRoot/Get-PkgVersion.ps1 -ServiceDirectory $serviceDirectory -PackageName $pkgName
-  return [PackageProps]::new($pkgName, $packageVersion, $pkgPath, $serviceDirectory)
+  if ($null -ne $packageVersion)
+  {
+    $packageProps = [PackageProps]::new($pkgName, $packageVersion, $pkgPath, $serviceDirectory)
+    $packageProps.ArtifactName = $pkgName
+    return $packageProps
+  }
+  return $null
 }
 
 # Parse out package publishing information from a package-info.json file.