Scripts/LogManager.ps1


Function Global:Initialize-Directories{
    $Global:ProgramDataDirectory = "$env:ProgramData\Wsustainable\0.2"
    New-Item -Path $ProgramDataDirectory -ItemType Directory -Force | Out-Null
    New-Item -Path (Join-Path $ProgramDataDirectory "Installers") -ItemType Directory -Force | Out-Null
    New-Item -Path (Join-Path $ProgramDataDirectory "Logs") -ItemType Directory -Force | Out-Null
}

Function Global:Start-Logging{
    If ($Verbose -or $CurrentConfig.Log.Verbose){
        $LastVerbosePreference = $VerbosePreference
        $VerbosePreference = 'Continue'
    }
    If ($Debug -or $CurrentConfig.Log.Debug){
        $LastDebugPreference = $DebugPreference
        $DebugPreference = 'Continue'
    }

    If ($CurrentConfig.Log.IsLogging){
        $StartTime = (Get-Date –F s).Replace(':','')
        If ([String]::IsNullOrEmpty($LogDirectory)){
            $Global:LogDirectory = Join-Path $ProgramDataDirectory "Logs\$StartTime"
        }
        New-Item $LogDirectory -ItemType Directory -Force | Out-Null
        Start-Transcript (Join-Path $LogDirectory "Transcript.log")

        $CurrentConfig | ConvertTo-Json -Depth 10 | Out-File -FilePath (Join-Path $LogDirectory "Config.json") -Encoding UTF8

        $LogsDirectoryChildItems = (Get-ChildItem (Join-Path $ProgramDataDirectory "Logs") -Directory -Filter "20*")
        If ($LogsDirectoryChildItems.Length -gt $CurrentConfig.Log.MaximumCount){
            ForEach ($LogsDirectoryChildItem in $LogsDirectoryChildItems){
                #西暦上2桁"20"から始まるディレクトリを検索
                If ((Get-ChildItem (Join-Path $ProgramDataDirectory "Logs") -Directory -Filter "20*").Length -le $CurrentConfig.Log.MaximumCount){
                    break
                }
                $LogsDirectoryChildItem | Remove-Item -Recurse -Force
            }
        }
    }
}

Function Global:Stop-Logging{
    Try{
        Stop-Transcript
        $VerbosePreference = $LastVerbosePreference
        $DebugPreference = $LastDebugPreference
    }
    Catch{}
}