# encoding: ascii
# api: powershell
# title: Set-Prompt
# description: My command Prompt — I recently added a “Pastable” option so that I can safely copy-paste a commandline and have it run without having to manually edit out my prompt.
# version: 0.1
# type: function
# author: Joel Bennett
# license: CC0
# x-poshcode-id: 2095
# x-archived: 2012-01-10T09:57:17
# x-published: 2012-08-20T12:43:00
#
#
param([Alias("copy","demo")][Switch]$Pasteable)
# This should go OUTSIDE the prompt function, it doesn't need re-evaluation
# We're going to calculate a prefix for the window title
# Our basic title is "PoSh - C:\Your\Path\Here" showing the current path
if(!$global:WindowTitlePrefix) {
# But if you're running "elevated" on vista, we want to show that ...
if( ([System.Environment]::OSVersion.Version.Major -gt 5) -and ( # Vista and ...
new-object Security.Principal.WindowsPrincipal (
[Security.Principal.WindowsIdentity]::GetCurrent()) # current user is admin
).IsInRole([Security.Principal.WindowsBuiltInRole]::Administrator) )
{
$global:WindowTitlePrefix = "PoSh ${Env:UserName}@${Env:UserDomain} (ADMIN)"
} else {
$global:WindowTitlePrefix = "PoSh ${Env:UserName}@${Env:UserDomain}"
}
}
if($Pasteable) {
function global:prompt {
Write-host "<#PS " -NoNewLine -fore gray
# FIRST, make a note if there was an error in the previous command
$err = !$?
# Make sure Windows and .Net know where we are (they can only handle the FileSystem)
[Environment]::CurrentDirectory = (Get-Location -PSProvider FileSystem).ProviderPath
# Also, put the path in the title ... (don't restrict this to the FileSystem
$Host.UI.RawUI.WindowTitle = "{0} - {1} ({2})" -f $global:WindowTitlePrefix,$pwd.Path,$pwd.Provider.Name
# Determine what nesting level we are at (if any)
$Nesting = "$([char]0xB7)" * $NestedPromptLevel
# Generate PUSHD(push-location) Stack level string
$Stack = "+" * (Get-Location -Stack).count
# my New-Script and Get-PerformanceHistory functions use history IDs
# So, put the ID of the command in, so we can get/invoke-history easier
# eg: "r 4" will re-run the command that has [4]: in the prompt
$global:lastCommandId = (Get-History -count 1).Id
$global:nextCommandId = $global:lastCommandId + 1
# Output prompt string
# If there's an error, set the prompt foreground to "Red", otherwise, "Yellow"
if($err) { $fg = "Red" } else { $fg = "Yellow" }
# Notice: no angle brackets, makes it easy to paste my buffer to the web
Write-Host "[${Nesting}${nextCommandId}${Stack}]" -NoNewLine -Fore $fg
Write-host " #>" -NoNewLine -fore gray
return " "
}
} else {
function global:prompt {
# FIRST, make a note if there was an error in the previous command
$err = !$?
# Make sure Windows and .Net know where we are (they can only handle the FileSystem)
[Environment]::CurrentDirectory = (Get-Location -PSProvider FileSystem).ProviderPath
# Also, put the path in the title ... (don't restrict this to the FileSystem
$Host.UI.RawUI.WindowTitle = "{0} - {1} ({2})" -f $global:WindowTitlePrefix,$pwd.Path,$pwd.Provider.Name
# Determine what nesting level we are at (if any)
$Nesting = "$([char]0xB7)" * $NestedPromptLevel
# Generate PUSHD(push-location) Stack level string
$Stack = "+" * (Get-Location -Stack).count
# my New-Script and Get-PerformanceHistory functions use history IDs
# So, put the ID of the command in, so we can get/invoke-history easier
# eg: "r 4" will re-run the command that has [4]: in the prompt
$global:lastCommandId = (Get-History -count 1).Id
$global:nextCommandId = $global:lastCommandId + 1
# Output prompt string
# If there's an error, set the prompt foreground to "Red", otherwise, "Yellow"
if($err) { $fg = "Red" } else { $fg = "Yellow" }
# Notice: no angle brackets, makes it easy to paste my buffer to the web
Write-Host "[${Nesting}${nextCommandId}${Stack}]:" -NoNewLine -Fore $fg
return " "
}
}
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