Private/Test-FileHash.ps1
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function Test-FileHash { <# .Synopsis Checks if a file is updated and needs to be published .Description Checks if a file is updated and needs to be published .Parameter GroupName Groupname which the hash of the underlaying files should be read. Alis is 'G'. .Parameter Path File Path to the json File. Alias is 'P'. .Outputs Returns false if hash is outdated and true if hashes are the same #> [CmdletBinding()] param ( [Parameter(Mandatory = $true)] [Alias('G')] $GroupName, [Parameter(Mandatory = $true)] [Alias('P')] [string] $Path ) begin { $JsonFile = 'FileHashes.json' $PathJson = "$Path\$JsonFile" } process { if (Test-Path -Path $Path\$JsonFile) { #Read from file hashes $Hashes = Get-Content -Path $PathJson | ConvertFrom-Json $FileName = "$GroupName.ps1" #Get hash from the current saved file $CurrentHash = (Get-FileHash -Path "$Path\Configuration\$GroupName\$FileName").Hash #Read cached hash $ChachedHash = $Hashes.FileHashes | Select-Object -ExpandProperty $FileName -ErrorAction SilentlyContinue | Select-Object -ExpandProperty Hash -ErrorAction SilentlyContinue if($null -ne $ChachedHash -and $CurrentHash -eq $ChachedHash) { return $true } } return $false } end{ } } |