PSReadline config

Microsoft.PowerShell_profile.ps1

# --- Zsh-like PSReadLine Configuration for Windows PowerShell 5.1 ---

# Predictions (history-based)
Set-PSReadLineOption -PredictionSource History
Set-PSReadLineOption -PredictionViewStyle Inline

# Use menu completion when pressing Tab (zsh-like)
Set-PSReadLineKeyHandler -Key Tab -Function MenuComplete

# History search with Up/Down arrows (zsh substring search feel)
Set-PSReadLineKeyHandler -Key UpArrow   -Function HistorySearchBackward
Set-PSReadLineKeyHandler -Key DownArrow -Function HistorySearchForward

# Mild color scheme similar to zsh themes
Set-PSReadLineOption -Colors @{
    Command          = '#00afff'
    Parameter        = '#ffaf00'
    String           = '#a8ff60'
    Operator         = '#ff5f87'
    Number           = '#ffd700'
    Comment          = '#5faf5f'
    InlinePrediction = '#606060'
}

# Huge history (zsh-like)
Set-PSReadLineOption -HistorySaveStyle SaveAtExit
Set-PSReadLineOption -MaximumHistoryCount 50000

# Optional: Simple zsh-like prompt (replace with oh-my-posh or starship if you want something fancy)
# Enable ANSI colors in Windows PowerShell
function Prompt {

    # Capture last command status immediately
    $lastStatus = if ($?) { "[ OK ]" } else { "[ ERROR ]" }

    # Ensure console supports ANSI escapes (PS 5.1 doesn't always enable it)
    if (-not ($Host.UI.SupportsVirtualTerminal)) {
        $null = $Host.UI.RawUI | ForEach-Object {
            $_.OutputEncoding = [Console]::OutputEncoding = [Text.UTF8Encoding]::new()
        }
    }

    # ESC char
    $esc = [char]27

    # Colors
    $green = "$esc[32m"
    $red   = "$esc[31m"
    $cyan  = "$esc[36m"
    $blue  = "$esc[34m"
    $reset = "$esc[0m"

    # Apply colors to status
    if ($lastStatus -eq "[ OK ]") {
        $status = "[ ${green}OK${reset} ]"
    } else {
        $status = "[ ${red}ERROR${reset} ]"
    }

    # user@host
    $userhost = "${green}$env:USERNAME${reset}@${blue}$env:COMPUTERNAME${reset}:"

    # Short path with ~ replacement
    $pwd = $PWD.Path
    if ($pwd -like "$HOME*") {
        $loc = $pwd.Replace($HOME, "~")
    } else {
        $loc = Split-Path $pwd -Leaf
    }

    # Admin? -> #
    $id = [Security.Principal.WindowsIdentity]::GetCurrent()
    $p = New-Object Security.Principal.WindowsPrincipal($id)
    $symbol = if ($p.IsInRole([Security.Principal.WindowsBuiltInRole]::Administrator)) { "#" } else { "$" }

    # Final prompt line
    "$status $userhost${cyan}${loc}${reset}$symbol "
}