PSFzfHistory.psm1
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# Copyright (C) 2024 Kenichi Kamiya # Do not add --height option for fzf, it shows nothing in keybind use function Invoke-FzfHistory ([String]$fuzzy) { [Microsoft.PowerShell.PSConsoleReadLine]::GetHistoryItems() | Select-Object -ExpandProperty CommandLine | Reverse | AsOrderedSet | fzf --no-sort --no-height --scheme=history --query=$fuzzy } # Avoid System.Collections.Generic.SortedSet from following points # - required order is "index", character dictionary based order is needless # - Avoid to create intermediate objects as possible function AsOrderedSet { $set = New-Object System.Collections.Generic.HashSet[string]; $input | Where-Object { $set.Add($_) } } function Reverse { # Prefer Stack rather than Enumerable::Reverse from the performance # See tools/benchmark.ps1 for detail [System.Collections.Stack]::new(@($input)) } function Set-FzfHistoryKeybind { param( [Parameter(Mandatory)] [ValidateNotNullOrEmpty()] [string]$Chord ) # https://learn.microsoft.com/en-us/powershell/module/psreadline/set-psreadlinekeyhandler?view=powershell-7.4 Set-PSReadLineKeyHandler -Chord $Chord -ScriptBlock { param($key, $arg) $line = $null $cursor = $null [Microsoft.PowerShell.PSConsoleReadLine]::GetBufferState([ref]$line, [ref]$cursor) $matched = Invoke-FzfHistory $line if (!$matched) { return } [Microsoft.PowerShell.PSConsoleReadLine]::BackwardDeleteLine() [Microsoft.PowerShell.PSConsoleReadLine]::Insert($matched) } } Export-ModuleMember -Function ('Invoke-FzfHistory', 'Set-FzfHistoryKeybind') |