Powershell script to Update Build & Version numbers for iOS & Android (Info.plist and AndroidManifest.xml )

UpdateBuildVersion.ps1

$majorMinorVersion = ""
$commitCount = & git rev-list --count HEAD
Write-Output "git rev-list --count HEAD = $commitCount"

		  
$params = @{	
	FilePath = ""
	OS = ""
    ToolsDir = ""
	SolutionFolder = ""
	VersionSpecFilePath = ""
	BuildCounter = $commitCount
	SetBuildNumber = "%mr.Build.Version.SetTCBuildNumber%"
}



	if(![System.IO.File]::Exists($params.FilePath)){
		Write-Error "$params.FilePath does not exist"
		exit
	}
	

	$version = Retrieve-Version-From-Spec-File
                -Path $params.VersionSpecFilePath `
                -BuildCount $params.BuildCounter `

	Write-Host "##teamcity[buildNumber '$($version.PackageVersion)']"
	
	$fileXml = [xml] (Get-Content $params.FilePath )
	   
	$versionNumber = $version.PackageVersion
	$buildCounter = $params.BuildCounter
	
	if($params.OS -eq "iOS"){
		
		Write-Output "Writing to $filePath - setting CFBundleVersion to $versionNumber"	
			
		Select-Xml -xml $fileXml -XPath "//dict/key[. = 'CFBundleShortVersionString']/following-sibling::string[1]" |
		%{ 	
			$_.Node.InnerXml = $versionNumber
		}
								
		Select-Xml -xml $fileXml -XPath "//dict/key[. = 'CFBundleVersion']/following-sibling::string[1]" |
		%{ 	
			$_.Node.InnerXml = $buildCounter
		}
	}
	elseif($params.OS -eq "Android"){
		$xpath = "//manifest"
		Write-Output "Writing to $filePath - setting manifest.android:versionCode to $versionNumber"	
		
		Select-Xml -xml $fileXml -XPath $xpath |
		%{ 				
			$_.Node.SetAttribute("android:versionName", $versionNumber)
			$_.Node.SetAttribute("android:versionCode", $buildCounter)
		}
	}
	else{
		Write-Error "Unrecognised OS argument: $params.OS"
		exit 
	}
	
	$fileXml.Save($params.FilePath) 
	Write-Output "Writing Version ($version.PackageVersion) to BuildVersion.txt"
	
	$version.PackageVersion	| Out-File BuildVersion.txt