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# Copyright (c): 2018, Dag Wieers (@dagwieers) <dag@wieers.com>
# Simplified BSD License (see licenses/simplified_bsd.txt or https://opensource.org/licenses/BSD-2-Clause)
Function Backup-File {
<#
.SYNOPSIS
Helper function to make a backup of a file.
.EXAMPLE
Backup-File -path $path -WhatIf:$check_mode
#>
[CmdletBinding(SupportsShouldProcess = $true)]
Param (
[Parameter(Mandatory = $true, ValueFromPipeline = $true)]
[string] $path
)
Process {
$backup_path = $null
if (Test-Path -LiteralPath $path -PathType Leaf) {
$backup_path = "$path.$pid." + [DateTime]::Now.ToString("yyyyMMdd-HHmmss") + ".bak"
Try {
Copy-Item -LiteralPath $path -Destination $backup_path
}
Catch {
throw "Failed to create backup file '$backup_path' from '$path'. ($($_.Exception.Message))"
}
}
return $backup_path
}
}
# This line must stay at the bottom to ensure all defined module parts are exported
Export-ModuleMember -Function Backup-File
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