Private/Update-FileHash.ps1
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function Update-FileHash { <# .Synopsis Updates the file hashes for all files which could be applied .Description Updates the file hashes for all files which could be applied .Parameter GroupNames Array of the Groupnames which the hash of the underlaying files should be updated. Alias is 'G'. .Parameter Path File Path to the json File. Alias is 'P'. #> [CmdletBinding()] param ( [Parameter(Mandatory = $true)] [Alias('G')] $GroupNames, [Parameter(Mandatory = $true)] [Alias('p')] [string] $Path ) begin { $JsonFile = 'FileHashes.json' $Folder = "Configuration" } process { if (Test-Path -Path $Path\$JsonFile) { $Hashes = Get-Content -Path $Path\$JsonFile | ConvertFrom-Json } else { #If file is not existing, generate format $Hashes = @" { "FileHashes":{ } } "@ $Hashes = ConvertFrom-Json $Hashes } foreach ($GroupName in $GroupNames) { $FileName = "$($GroupName.Name).ps1" $FileHash = (Get-FileHash -Path "$Path\$Folder\$($GroupName.Name)\$FileName").Hash #Generate Hashobject which should be appended to the json $HashObject = @" { "File" : "$FileName", "Hash" : "$FileHash" } "@ if ($null -ne ($Hashes.FileHashes | Select-Object -Property $FileName).$FileName) { #Update Hash $Hashes.FileHashes | Select-Object -ExpandProperty $FileName | Where-Object { $_.Hash = $FileHash } } else { #Append Hash $Hashes.FileHashes | Add-Member -Name $FileName -Value (ConvertFrom-Json -InputObject $HashObject) -MemberType NoteProperty } } if ($Hashes) { $Hashes | ConvertTo-Json | Out-File $Path\$JsonFile -Force } } end { Write-Log -Level INFORMATION -Message "Hashes have been updated" } } |