add the validation and latest version scripts

Author: ramsessanchez

scripts/getLatestVersion.ps1

@@ -0,0 +1,31 @@
+# Copyright (c) Microsoft Corporation. All rights reserved.
+# Licensed under the MIT License.
+
+<# 
+.Synopsis
+    Retrieve the latest version of the library
+.Description 
+    Retrieves the latest version specified in the Gradle.Properties file
+    Uses the retrieved values to update the enviornment variable VERSION_STRING
+#>
+
+.Parameter propertiesPath
+
+Param(
+    [parameter(Mandatory = $true)]
+    [string]$propertiesPath,
+)
+
+#Retrieve the current version from the Gradle.Properties file given the specified path
+$file = get-item $propertiesPath
+$findVersions = $file | Select-String -Pattern "mavenMajorVersion" -Context 0,2
+$findVersions = $findVersions -split "`r`n"
+
+$majorVersion = $findVersions[0].Substring($findVersions[0].Length-1)
+$minorVersion = $findVersions[1].Substring($findVersions[1].Length-1)
+$patchVersion = $findVersions[2].Substring($findVersions[2].Length-1)
+$version = "$majorVersion.$minorVersion.$patchVersion"
+
+#Update the VERSION_STRING env variable and inform the user
+Write-Host "##vso[task.setVariable variable=VERSION_STRING]$($version)";
+Write-Host "Updated the VERSION_STRING enviornment variable with the current Gradle.Properties, $version"

scripts/validateMavenVersion.ps1

@@ -0,0 +1,68 @@
+# Copyright (c) Microsoft Corporation. All rights reserved.
+# Licensed under the MIT License.
+
+<# 
+.Synopsis
+    Ensure the maven version is updated in the case that the pull request is 
+    to the main/master branch of the repo.
+.Description 
+    Retrieves the local, Maven, and Bintray versions of the Java-Auth build.
+    Checks that the Maven and Bintray versions are aligned, trigger warning if not.
+    Checks that the current local version is greater than those currently deployed. 
+#>
+
+.Parameter packageName
+.Parameter propertiesPath
+
+Param(
+    [parameter(Mandatory = $true)]
+    [string]$packageName,
+
+    [parameter(Mandatory = $true)]
+    [string]$propertiesPath
+)
+
+#Find the local version from the Gradle.Properties file
+$file = get-item $propertiesPath
+$findLocalVersions = $file | Select-String -Pattern "mavenMajorVersion" -Context 0,2
+$findLocalVersions = $findLocalVersions -split "`r`n"
+
+$localMajor = $findLocalVersions[0].Substring($findLocalVersions[0].Length-1)
+$localMinor = $findLocalVersions[1].Substring($findLocalVersions[1].Length-1)
+$localPatch = $findLocalVersions[2].Substring($findLocalVersions[2].Length-1)
+$localVersion = [version]"$localMajor.$localMinor.$localPatch"
+
+#Set Web Client and retrieve Maven and Bintray versions from their respective repos.
+$web_client = New-Object System.Net.WebClient
+
+$mavenAPIurl = "https://search.maven.org/solrsearch/select?q=$packageName&rows=20&wt=json"
+$jsonResult = $web_client.DownloadString($mavenAPIurl) | ConvertFrom-Json
+$mavenVersion = [version]$jsonResult.response.docs.latestVersion
+
+$bintrayAPIurl = "https://api.bintray.com/search/packages?name=$packageName"
+$jsonResult = $web_client.DownloadString($bintrayAPIurl) | ConvertFrom-Json
+$bintrayVersion = [version]$jsonResult.latest_version
+
+#If the api calls return empty then this library cannot be compared to the online versions
+#may proceed with the pull request
+if(($mavenVersion -eq $null) -and ($bintrayVersion -eq $null))
+{
+    Write-Information "This package does not exist yet in the online repository, therefore there are no versions to compare."
+    return
+}
+
+#Inform host of current Maven and Bintray versions
+Write-Host 'The current version in the Maven central repository is:' $mavenVersion
+Write-Host 'The current version in the Bintray central repository is:' $bintrayVersion
+
+#Warn in case Maven and Bintray versions are not the same.
+if($mavenVersion -ne $bintrayVersion){
+    Write-Warning "The current Maven and Bintray versions are not the same"
+}
+#Success if Local version has been updated, Error otherwise. 
+if($localVersion -gt $bintrayVersion){
+    Write-Host "The current pull request is of a greater version"
+}   
+else{
+    Write-Error "The current local version is not updated. Please update the local version in the Gradle.Properties file."
+}