Powershell script to diff two files with SHA256 hash.

AreSameFile.ps1

<#
    .DESCRIPTION
    Powershell script to diff two files with SHA256 hash.

    .OUTPUTS
    System.String. Add-Extension returns a string with the extension or file name.

    .EXAMPLE
    PS> .\AreSameFile.ps1 .\deployed.json .\expected_different.json
#>
param(
  [Parameter(Mandatory=$true)][string] $file1,
  [Parameter(Mandatory=$true)][string] $file2,
  [string] $logPath = ""
)

[Console]::ResetColor()

# Get the file hashes
$fileHash1 = Get-FileHash $file1 -Algorithm "SHA256"
$fileHash2 = Get-FileHash $file2 -Algorithm "SHA256"

$fileHash1 | Format-List
$fileHash2 | Format-List


if ($fileHash1.Hash -eq $fileHash2.Hash)
{
  $host.UI.RawUI.ForegroundColor = "Green"
  [string] $msg = "Source File Hash: $($fileHash1.Hash) is EQUAL TO Destination File Hash: $($fileHash2.Hash)."

  if ([string]::IsNullOrWhitespace($logPath) -eq $false) 
  {
    Add-Content -Path $logPath -Value $msg
  }
  else 
  {
    Write-Host $msg
  }
  
  exit 0
}

$host.UI.RawUI.ForegroundColor = "Red"
[string] $msg = "Source File Hash: $($fileHash1.Hash) does not equal Existing Destination File Hash: $($fileHash2.Hash) the files are NOT EQUAL."

if ([string]::IsNullOrWhitespace($logPath) -eq $false) 
{
  Add-Content -Path $logPath -Value $msg
}
else 
{
  Write-Host $msg
}

exit 1