PowerShell S2E10 (Convert Function to Module)

*How to convert powershell function to a module
*powershell log function
*powershell log module
*out-file
*write-host
*send email from powershell
*Send-MailMessage
*write-warning

In this video I demonstrate how you can convert a powershell function or script (.ps1) to a powershell module (.psm1)

Code :
#Modules file created by Mark Bakker, this is module for logging purposes, like writing to file, console and sending mail
Function Write-MRBMessage {
Param(
[Parameter(Mandatory = $true)] $Message,
[Parameter(Mandatory = $true)]
[ValidateSet('INFO','WARNING','ERROR')]
[string]$Category
#[Parameter(Mandatory = $true)] $LogFile
#[Parameter(Mandatory = $false)][boolean]$NoNewLine = $true
)
Try {
$Date = ((Get-Date -f dd-MM-yyyy-HH:mm:ss).tostring())
$Cat = $Null
switch ($Category) {
"ERROR" {
$MessageColor = 'red'
$Cat = 'ERR'
}
"WARNING" {
$MessageColor = 'yellow'
$Cat = 'WAR'
}
"INFO" {
$MessageColor = 'Green'
$Cat = 'INF'
}
default {Write-Host "The category of the message could not be determined" -ForegroundColor Red -BackgroundColor Black}
}

Write-Host -Object "[" -NoNewline -ForegroundColor Cyan
Write-Host -Object $Date -NoNewline -ForegroundColor White
Write-Host -Object "]" -NoNewline -ForegroundColor Cyan
Write-Host -Object " - " -NoNewline -ForegroundColor Green

Write-Host -Object "[" -NoNewline -ForegroundColor Cyan
Write-Host -Object $Cat -NoNewline -ForegroundColor White
Write-Host -Object "]" -NoNewline -ForegroundColor Cyan

Write-Host -Object " - " -NoNewline -ForegroundColor Green
Write-Host -Object "[" -NoNewline -ForegroundColor Cyan
Write-Host -Object $Message -NoNewline -ForegroundColor $MessageColor

if ($NoNewLine) {
Write-Host -Object "]" -ForegroundColor Cyan -NoNewline
}
else {
Write-Host -Object "]" -ForegroundColor Cyan
}

#$Message = $Date + " " + $Message
#Out-File $LogFile -encoding ASCII -input $message -append

$Date = $Null
$Message = $Null
$MessageColor = $Null
}
Catch {
Write-Host "ERROR While trying to write message : $($_.Exception.Message), SCRIPT QUITS with ERROR -1 !!" -BackgroundColor Black -ForegroundColor Red
}
}

Function Send-MRBMail {
Param(
[Parameter(Mandatory = $true)] $Message,
[Parameter(Mandatory = $true)] $Subject,
[Parameter(Mandatory = $false)] $Attach,
[Parameter(Mandatory = $true)] $smtpserver,
[Parameter(Mandatory = $true)] $MailRecipient
)
Try {
$MailSender = "[email protected]"
if ($Attach) {
Send-MailMessage -To $MailRecipient -From $MailSender -Body $Message -Subject $Subject -SmtpServer $smtpServer -Priority High -ErrorAction Stop -Attachments $Attach
}
else {
Send-MailMessage -To $MailRecipient -From $MailSender -Body $Message -Subject $Subject -SmtpServer $smtpServer -Priority High -ErrorAction Stop
}
}
Catch {
Write-Warning "ERROR While sending e-mail, the error returned = $($_.Exception.Message) @line number : $($_.InvocationInfo.ScriptLineNumber)"
}
}