My PowerShell profile

profile.ps1

###
## NOTE: This assumes the folliwng:
##    - PS 5.x
##    - posh-git (https://github.com/dahlbyk/posh-git) 1.x is installed
###

###
## Helper Functions
###

# Determines if the user is an admin
function Test-IsAdmin {
    return ([Security.Principal.WindowsPrincipal][Security.Principal.WindowsIdentity]::GetCurrent()).IsInRole([Security.Principal.WindowsBuiltInRole]::Administrator)
}

# .gitignore generator
Function gig {
    param(
      [Parameter(Mandatory=$true)]
      [string[]]$list
    )
    $params = ($list | ForEach-Object { [uri]::EscapeDataString($_) }) -join ","
    Invoke-WebRequest -Uri "https://www.gitignore.io/api/$params" | select -ExpandProperty content | Out-File -FilePath $(Join-Path -path $pwd -ChildPath ".gitignore") -Encoding ascii
  }

###
## Custom Prompt
###
Import-Module posh-git

function Set-PromptPrefix {
    $prefix = "$([char]0x00A7) "
    if(Test-IsAdmin) {
        $prefix = "$prefix[ADMIN] "
    }
    $GitPromptSettings.DefaultPromptPrefix.Text = $prefix
    $GitPromptSettings.DefaultPromptPrefix.ForegroundColor = [ConsoleColor]::Yellow
}

Set-PromptPrefix