OhMyPsh

0.0.1

plugins/psreadline/src/psreadline.ps1

<#
     psreadline configuration
#>
Set-PSReadLineOption -HistoryNoDuplicates
Set-PSReadlineOption -HistorySavePath (Get-OMPProfileSetting -Name 'PSReadlineHistoryPath')
Set-PSReadLineOption -HistorySearchCursorMovesToEnd
Set-PSReadLineOption -HistorySaveStyle SaveIncrementally
Set-PSReadLineOption -MaximumHistoryCount 4000
Set-PSReadlineOption -ShowToolTips:$true

Set-PSReadlineKeyHandler -Key "Ctrl+Delete"       -Function "KillWord"
Set-PSReadlineKeyHandler -Key "Ctrl+Backspace"    -Function "BackwardKillWord"
Set-PSReadlineKeyHandler -Key "Shift+Backspace"   -Function "BackwardKillWord"
Set-PSReadlineKeyHandler -Key "UpArrow"           -Function "HistorySearchBackward"
Set-PSReadlineKeyHandler -Key "DownArrow"         -Function "HistorySearchForward"
Set-PSReadlineKeyHandler -Key "Tab"               -Function "MenuComplete"
Set-PSReadlineKeyHandler -Chord 'Shift+Tab' -Function "Complete"
Set-PSReadlineKeyHandler -Key "Ctrl+Q"            -Function "TabCompleteNext"
Set-PSReadlineKeyHandler -Key "Ctrl+Shift+Q"      -Function "TabCompletePrevious"

Set-PSReadlineKeyHandler -Key F1 -BriefDescription CommandHelp -LongDescription "Open the help window for the current command" -ScriptBlock {
    # Get current line(s) of input
    $ast = $null
    $cursor = $null
    [Microsoft.PowerShell.PSConsoleReadLine]::GetBufferState([ref]$ast, [ref]$null, [ref]$null, [ref]$cursor)
    
    # Find the current command, use Ast to find the currently processed command, even if we are currently typing parameters for it.
    $commandAst = $ast.FindAll({
            $node = $args[0]
            $node -is [System.Management.Automation.Language.CommandAst] -and
            $node.Extent.StartOffset -le $cursor -and
            $node.Extent.EndOffset -ge $cursor
        }, $true) | Select-Object -Last 1
    
    # If we are in the process of typing a command ...
    if ($commandAst -ne $null) {
        # Get its name
        $commandName = $commandAst.GetCommandName()
        if ($commandName -ne $null) {
            # Ensure it really is its name
            $command = $ExecutionContext.InvokeCommand.GetCommand($commandName, 'All')
            if ($command -is [System.Management.Automation.AliasInfo]) {
                $commandName = $command.ResolvedCommandName
            }
            
            # Get Help
            if ($commandName -ne $null) {
                # Call help based on preference
                switch ($PSReadlineHelpPreference) {
                    "detail" { Start-Process powershell.exe -ArgumentList "-NoExit -Command Get-Help $commandName -Detailed" }
                    "details" { Start-Process powershell.exe -ArgumentList "-NoExit -Command Get-Help $commandName -Detailed" }
                    "example" { Start-Process powershell.exe -ArgumentList "-NoExit -Command Get-Help $commandName -Examples" }
                    "examples" { Start-Process powershell.exe -ArgumentList "-NoExit -Command Get-Help $commandName -Examples" }
                    "online" { Get-Help $commandName -Online }
                    default { Get-Help $commandName -Online }
                }
            }
        }
    }
}