<#
.SYNOPSIS
    block_checkpoint.ps1 - Perforce trigger to block "p4 admin checkpoint"

.DESCRIPTION
    Trigger table entry:
      block-checkpoint command pre-user-admin "powershell -ExecutionPolicy Bypass -File /path/to/block_checkpoint.ps1 %user% %args%"

    This trigger fires before any "p4 admin" command. The script checks
    if the subcommand is "checkpoint" and blocks it.
#>

param(
    [Parameter(Mandatory=$true, Position=0)]
    [string]$User,

    [Parameter(Mandatory=$false, ValueFromRemainingArguments=$true)]
    [string[]]$Args
)

$ArgsString = $Args -join ' '

if ($ArgsString -match 'checkpoint') {
    Write-Output "Checkpoint blocked: User '$User' attempted to run 'p4 admin checkpoint'. This command is not permitted."
    exit 1
}

# Allow all other "p4 admin" subcommands
exit 0