Private/AutomaticWritePowerShellTipFunctions.ps1
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function WriteAutomaticPowerShellTipIfNeeded { [CmdletBinding()] [OutputType([void])] Param ( [Parameter(Mandatory = $true, HelpMessage = 'The tiPS configuration used to determine if a tip should be written.')] [ValidateNotNullOrEmpty()] [tiPS.Configuration] $Config ) # For performance reasons, check if we should never write a tip before doing anything else. if ($Config.AutoWritePowerShellTipCadence -eq [tiPS.WritePowerShellTipCadence]::Never) { return } [DateTime] $lastAutomaticTipWrittenDate = ReadLastAutomaticTipWrittenDateOrDefault [TimeSpan] $timeSinceLastAutomaticTipWritten = [DateTime]::Now - $lastAutomaticTipWrittenDate [int] $daysSinceLastAutomaticTipWritten = $timeSinceLastAutomaticTipWritten.Days [bool] $shouldShowTip = $false switch ($Config.AutoWritePowerShellTipCadence) { ([tiPS.WritePowerShellTipCadence]::Never) { $shouldShowTip = $false; break } ([tiPS.WritePowerShellTipCadence]::EverySession) { $shouldShowTip = $true; break } ([tiPS.WritePowerShellTipCadence]::Daily) { $shouldShowTip = $daysSinceLastAutomaticTipWritten -ge 1; break } ([tiPS.WritePowerShellTipCadence]::Weekly) { $shouldShowTip = $daysSinceLastAutomaticTipWritten -ge 7; break } } if ($shouldShowTip) { [bool] $isSessionInteractive = TestPowerShellSessionIsInteractive if (-not $isSessionInteractive) { Write-Verbose "tiPS is configured to write an automatic tip now, but this session is non-interactive. tiPS will only write automatic tips when it is imported into an interactive PowerShell session. This prevents a tip from being written at unexpected times, such as when the user or an automated process runs PowerShell scripts." return } WriteAutomaticPowerShellTip } else { Write-Debug "Showing a tiPS PowerShell tip is not needed at this time." } } function WriteAutomaticPowerShellTip { [CmdletBinding()] [OutputType([void])] Param() Write-PowerShellTip [DateTime] $todayWithoutTime = [DateTime]::Now.Date # Exclude the time for a better user experience. WriteLastAutomaticTipWrittenDate -LastAutomaticTipWrittenDate $todayWithoutTime } function TestPowerShellSessionIsInteractive { [CmdletBinding()] [OutputType([bool])] Param() if (-not [Environment]::UserInteractive) { Write-Debug "The [Environment]::UserInteractive property shows this PowerShell session is not interactive." return $false } [string[]] $typicalNonInteractiveCommandLineArguments = @( '-Command' '-c' '-EncodedCommand' '-e' '-ec' '-File' '-f' '-NonInteractive' ) [string[]] $commandLineArgs = [Environment]::GetCommandLineArgs() Write-Debug "The PowerShell command line arguments are '$commandLineArgs'." [string[]] $nonInteractiveArgMatches = $commandLineArgs | Where-Object { $_ -in $typicalNonInteractiveCommandLineArguments } [bool] $isNonInteractive = $nonInteractiveArgMatches.Count -gt 0 if ($isNonInteractive) { return $false } return $true } function ReadLastAutomaticTipWrittenDateOrDefault { [CmdletBinding()] [OutputType([DateTime])] Param() [DateTime] $lastAutomaticTipWrittenDate = [DateTime]::MinValue [string] $lastAutomaticTipWrittenDateFilePath = GetLastAutomaticTipWrittenDateFilePath if (Test-Path -Path $lastAutomaticTipWrittenDateFilePath -PathType Leaf) { [string] $lastAutomaticTipWrittenDateString = [System.IO.File]::ReadAllText($lastAutomaticTipWrittenDateFilePath) $lastAutomaticTipWrittenDate = [DateTime]::Parse($lastAutomaticTipWrittenDateString) } return $lastAutomaticTipWrittenDate } function WriteLastAutomaticTipWrittenDate { [CmdletBinding()] [OutputType([void])] Param ( [DateTime] $LastAutomaticTipWrittenDate ) [string] $lastAutomaticTipWrittenDateFilePath = GetLastAutomaticTipWrittenDateFilePath Write-Verbose "Writing last automatic tip Written date '$LastAutomaticTipWrittenDate' to '$lastAutomaticTipWrittenDateFilePath'." $LastAutomaticTipWrittenDate.ToString() | Set-Content -Path $lastAutomaticTipWrittenDateFilePath -Force -NoNewline } function GetLastAutomaticTipWrittenDateFilePath { [CmdletBinding()] [OutputType([string])] Param() [string] $appDataDirectoryPath = Get-TiPSDataDirectoryPath [string] $lastAutomaticTipWrittenDateFilePath = Join-Path -Path $appDataDirectoryPath -ChildPath 'LastAutomaticTipWrittenDate.txt' return $lastAutomaticTipWrittenDateFilePath } |