Windows 10 - Files backup script for Windows Scheduler (+ 7zip version with folders exclude by name)

Backup-7z.PS1

### Requires 7-zip https://www.7-zip.org/
###
### Windows scheduler task (as hidden daily job):
### Execute:  powershell.exe
### Argument: -WindowStyle Hidden "L:\Backups\Backup-7z.PS1"

##########################################################
####################### Config ###########################

### 7-zip exe file path
$exe7Zip = "C:\Program Files\7-Zip\7z.exe"

### Destination folder for backups
$backupFolder = "L:\Backups"

### Current backup files copy
$backupFolderCurrent = "K:\YandexDisk\Backups_Work\Current"

### Do you want to use encryption? (1 for "yes", 0 for "no")
$backupEncryption = 1

### Password file path if needed you can change that location
$passwordFile = "L:\Backups\BackupPassword.key"

### Source folders for backups with their base filenames(!)
$foldersList = (
    @{"BaseFileName"="Work"; "SourcePath"="X:\Work"}
    )

### Exclude folders list (by name) from backup archive
$excludeFolders = (
    "vendor", 
    "node_modules", 
    "DBDUMP", 
    "client_catalog_parse", 
    "client_catalog_temp", 
    ".idea",
    ".bash",
    ".exe",
    "storage")

##########################################################
###################### Code body #########################

### Check if 7z executable exists
if (-not (Test-Path $exe7Zip)) {
    Write-Host "Required 7zip executable not found." -ForegroundColor white -BackgroundColor red
    exit
}

### Check if encryption needed
$encryptionParam = ""
if ($backupEncryption) {
    Write-Warning "Encryption enabled."

    if (-not (Test-Path $passwordFile)) {
        Write-Host "Required password file not found." -ForegroundColor white -BackgroundColor red
        exit
    }

    $encrypted = Get-Content $passwordFile | ConvertTo-SecureString
    $credential = New-Object System.Management.Automation.PsCredential("none", $encrypted)

    $encryptionParam="-p" + $credential.GetNetworkCredential().Password
}

$excludeParam = ""
foreach ($excludeName in $excludeFolders) {
    $excludeParam += "-xr!`"$excludeName`" "
}

$dtMark = Get-Date -f "yyyy-MM-dd HH:mm:ss"
Write-Output "Process started at: $dtMark"

$dateMark = Get-Date -f "yyyy-MM-dd"
$timeMark = Get-Date -f "HHmmss"

foreach ($folder in $foldersList) {
    Write-Output "Archiving folder: $($folder.SourcePath) ..."

    $dateFolder = "$backupFolder\$dateMark"
    New-Item -ItemType Directory -Force -Path $dateFolder | Out-Null

    $command = "&'$exe7Zip' a -tzip -mx5 $excludeParam $($encryptionParam) $dateFolder\$($folder.BaseFileName)-$($timeMark).zip $($folder.SourcePath)"
    Invoke-Expression -Command $command  | Out-null

    #New-Item -ItemType Directory -Force -Path $backupFolderCurrent | Out-Null
    #Copy-Item "$dateFolder\$($folder.BaseFileName)-$($timeMark).zip" "$backupFolderCurrent\$($folder.BaseFileName).zip"
}

$dtMark = Get-Date -f "yyyy-MM-dd HH:mm:ss"
Write-Output "Process complete at: $dtMark"

Backup.PS1

### Windows scheduler task (as hidden daily job):
### Execute:  powershell.exe
### Argument: -WindowStyle Hidden "L:\Backups\Backup.PS1"

Add-Type -AssemblyName "System.IO.Compression.FileSystem"

### Destination folder for backups
$backupFolder = "L:\Backups"

### Source folders for backups with their base filenames(!)
$foldersList = (
    @{"BaseFileName"="Documents"; "SourcePath"="X:\Documents"},
    @{"BaseFileName"="Pictures"; "SourcePath"="X:\Pictures"},
    @{"BaseFileName"="Work"; "SourcePath"="X:\Work"}
    )

$dtMark = Get-Date -f "yyyy-MM-dd HH:mm:ss"
Write-Output "Process started at: $dtMark"

$dateMark = Get-Date -f "yyyy-MM-dd"
$timeMark = Get-Date -f "HHmmss"

foreach ($folder in $foldersList) {
    Write-Output "Archiving folder: $($folder.SourcePath) ..."

    $dateFolder = "$backupFolder\$dateMark"
    New-Item -ItemType Directory -Force -Path $dateFolder | Out-Null

    [IO.Compression.ZipFile]::CreateFromDirectory($folder.SourcePath, "$dateFolder\$($folder.BaseFileName)-$($timeMark).zip")
}

$dtMark = Get-Date -f "yyyy-MM-dd HH:mm:ss"
Write-Output "Process complete at: $dtMark"

MakePassword.PS1

### Create protected key file with password
### For usage with Backup-7z.PS1 with encryption enabled
$encrypted = Get-Content .\BackupPassword.key | ConvertTo-SecureString
$credential = New-Object System.Management.Automation.PsCredential("none", $encrypted)
echo $credential