Replace JSON variables based on another json

configure.ps1

Param(
    [Parameter(Mandatory=$True)]
    [string]$configFile,
    
    [Parameter(Mandatory=$True)]
    [string]$path
)

# read configuration file
$config = ""

foreach($file in Get-ChildItem $path -filter $configFile)
{
    $config = Get-Content $file.FullName | ConvertFrom-Json
}

if($config -ne "")
{
    Write-Host
    Write-Host 'Configuration:'
    Write-Host $config
    Write-Host
    
    foreach ($key in $config.psobject.properties.name) 
    {
        # for each entity        
        if($key -ne "`$schema")
        {
            Write-Host 'Configuring: '$key
            
            foreach($file in Get-ChildItem $path -filter "*.json")
            {
                $target = Get-Content $file.FullName | ConvertFrom-Json
                
                # find matching definition                
                if($target.name -eq $key)
                {
                    Write-Host
                    Write-Host "Transforming file " $file.Name  
                    
                    # replace values                    
                    foreach($property in $config.$key)
                    {
                        Write-Host "Setting: " $property.name
                        Write-Host "Value: " $property.value
                        
                        $expression = $property.name -replace "[`$]", "`$target"
                        Invoke-Expression ($expression + " = `"" + $property.value + "`"")
                    }                  
                    
                    # write result to disk                    
                    $target | ConvertTo-Json -depth 999 | Out-File $file.FullName  
                    
                    Write-Host
                }
            }
        }
    }
}
else 
{
    Write-Host "Configuration file not found: " $configFile
}

Useful for data factories