Private/Initialize-Log.ps1
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<#
.SYNOPSIS Initializes a log file by ensuring the directory exists and creating the file if needed. .DESCRIPTION The `Initialize-Log` function checks if the specified log directory exists. If it does not exist, it attempts to create the directory. If the directory cannot be created (e.g., due to insufficient permissions), the function falls back to the user's profile directory. It then creates a log file named `Migration_YYYY_MM_DD.log` with the current date in the format `2024_10_24`. The log file is initialized with a timestamp entry. .PARAMETER LogDirectory (Optional) The path to the directory where the log file should be created. Defaults to `C:\Logs`. If the directory cannot be created, the user's profile directory (`$env:USERPROFILE`) is used instead. .OUTPUTS The function returns the full path to the initialized log file. .EXAMPLES # Example 1: Default directory (C:\Logs) $LogFilePath = Initialize-Log Write-Host "Log file initialized at: $LogFilePath" # Example 2: Specify a custom directory $LogFilePath = Initialize-Log -LogDirectory "D:\CustomLogs" Write-Host "Log file initialized at: $LogFilePath" # Example 3: Handle fallback to the user profile directory $LogFilePath = Initialize-Log Write-Host "Log file initialized at: $LogFilePath" .NOTES Author: Your Name Date: YYYY-MM-DD Version: 1.0 #> function Initialize-Log { param ( [Parameter(Mandatory = $false)] [string]$LogDirectory = "C:\Logs" ) # Check if the provided directory exists if (-not (Test-Path -Path $LogDirectory)) { try { # Attempt to create the directory New-Item -ItemType Directory -Path $LogDirectory -ErrorAction Stop | Out-Null } catch { # If unable to create, fall back to the user's profile directory $LogDirectory = "$env:USERPROFILE" } } # Define log file name with current date $LogFileName = "Migration_$(Get-Date -Format 'yyyy_MM_dd').log" $LogFilePath = Join-Path -Path $LogDirectory -ChildPath $LogFileName # Check if the log file exists, create if not if (-not (Test-Path -Path $LogFilePath)) { New-Item -ItemType File -Path $LogFilePath | Out-Null } # Return the log file path return $LogFilePath } |