Powershell Aliases with git prompt (scroll down for main alias / profile file)

gitutils.ps1

# Git functions
# Credit not myself but Mark Embling (http://www.markembling.info/)
 
# Is the current directory a git repository/working copy?
function isCurrentDirectoryGitRepository {
    if ((Test-Path ".git") -eq $TRUE) {
        return $TRUE
    }
    
    # Test within parent dirs
    $checkIn = (Get-Item .).parent
    while ($checkIn -ne $NULL) {
        $pathToTest = $checkIn.fullname + '/.git'
        if ((Test-Path $pathToTest) -eq $TRUE) {
            return $TRUE
        } else {
            $checkIn = $checkIn.parent
        }
    }
    
    return $FALSE
}
 
# Get the current branch
function gitBranchName {
    $currentBranch = ''
    git branch | foreach {
        if ($_ -match "^\* (.*)") {
            $currentBranch += $matches[1]
        }
    }
    return $currentBranch
}
 
# Extracts status details about the repo
function gitStatus {
    $untracked = $FALSE
    $added = 0
    $modified = 0
    $deleted = 0
    $ahead = $FALSE
    $aheadCount = 0
    
    $output = git status
    
    $branchbits = $output[0].Split(' ')
    $branch = $branchbits[$branchbits.length - 1]
    
    $output | foreach {
        if ($_ -match "^\#.*origin/.*' by (\d+) commit.*") {
            $aheadCount = $matches[1]
            $ahead = $TRUE
        }
        elseif ($_ -match "deleted:") {
            $deleted += 1
        }
        elseif (($_ -match "modified:") -or ($_ -match "renamed:")) {
            $modified += 1
        }
        elseif ($_ -match "new file:") {
            $added += 1
        }
        elseif ($_ -match "Untracked files:") {
            $untracked = $TRUE
        }
    }
    
    return @{"untracked" = $untracked;
             "added" = $added;
             "modified" = $modified;
             "deleted" = $deleted;
             "ahead" = $ahead;
             "aheadCount" = $aheadCount;
             "branch" = $branch}
}

profile.ps1

###############################################
# GENERAL ALIASES
###############################################

New-Alias ll dir
New-Alias cl clear

Function GoBackUpOne { cd .. }
Function GoBackUpTwo { cd ..; cd .. }
Function GoToProjects { e:; dir; }
Function GoToDesktop { c:;  cd .\Desktop}
Function GoToHomeDirectory { cd ~ } 

New-Alias .. GoBackUpOne
New-Alias .... GoBackUpTwo
New-Alias code GoToProjects
New-Alias desktop GoToDesktop
New-Alias home GoToHomeDirectory

###############################################
# GIT ALIASES
###############################################

#Functions are required for multi-line commands
#Bind alias with function call

Function GitAdd { git add -A }
Function GitBranch { git branch }
Function GitCommit { git commit -m }
Function GitDiff { git diff }
Function GitLog { git log --graph }
Function GitMove { git mv }
Function GitCheckout { git checkout }
Function GitPush { git push }
Function GitPushBranch { git push -u origin }
Function GitGetStatus { git status }

New-Alias ga GitAdd
New-Alias gb GitBranch
New-Alias gco GitCommit
New-Alias gd GitDiff
New-Alias glog GitLog
New-Alias gmov GitMove
New-Alias go GitCheckout
New-Alias gpu GitPush
New-Alias gpb GitPushBranch
New-Alias gs GitGetStatus

###############################################
# GIT PROMPT
###############################################

# My preferred prompt for Powershell. 
# Displays git branch and stats when inside a git repository.
 
. (Resolve-Path ~/Documents/WindowsPowershell/gitutils.ps1)
 
function prompt {
	$path = [string]$pwd

	$host.UI.RawUi.WindowTitle = $userLocation

	Write-Host($env:username + ' ') -nonewline -foregroundcolor Green
    Write-Host('(' + $path + ')') -nonewline -foregroundcolor Yellow 
    
    if (isCurrentDirectoryGitRepository) {
        $status = gitStatus
        $currentBranch = $status["branch"]
        
        Write-Host(' [') -nonewline -foregroundcolor Yellow
        if ($status["ahead"] -eq $FALSE) {
            # We are not ahead of origin
            Write-Host($currentBranch) -nonewline -foregroundcolor Cyan
        } else {
            # We are ahead of origin
            Write-Host($currentBranch) -nonewline -foregroundcolor Red
        }
        Write-Host(' +' + $status["added"]) -nonewline -foregroundcolor Yellow
        Write-Host(' ~' + $status["modified"]) -nonewline -foregroundcolor Yellow
        Write-Host(' -' + $status["deleted"]) -nonewline -foregroundcolor Yellow
        
        if ($status["untracked"] -ne $FALSE) {
            Write-Host(' !') -nonewline -foregroundcolor Yellow
        }
        
        Write-Host(']') -nonewline -foregroundcolor Yellow 
    }
    
	Write-Host(' $') -nonewline -foregroundcolor Green    
	return " "
}