Merge pull request #139 from dbuckingham/limit-branch-name-length

Limit length of long branch name

GitPrompt.ps1

@@ -3,7 +3,7 @@
 
 $global:GitPromptSettings = New-Object PSObject -Property @{
     DefaultForegroundColor    = $Host.UI.RawUI.ForegroundColor
-
+    
     BeforeText                = ' ['
     BeforeForegroundColor     = [ConsoleColor]::Yellow
     BeforeBackgroundColor     = $Host.UI.RawUI.BackgroundColor
@@ -50,6 +50,9 @@ $global:GitPromptSettings = New-Object PSObject -Property @{
     EnableWindowTitle         = 'posh~git ~ '
 
     Debug                     = $false
+
+    BranchNameLimit           = 0
+    TruncatedBranchSuffix     = '...'
 }
 
 $currentUser = [Security.Principal.WindowsPrincipal]([Security.Principal.WindowsIdentity]::GetCurrent())
@@ -70,6 +73,17 @@ function Write-Prompt($Object, $ForegroundColor, $BackgroundColor = -1) {
     }
 }
 
+function Format-BranchName($branchName){
+    $s = $global:GitPromptSettings
+
+    if($s.BranchNameLimit -gt 0 -and $branchName.Length -gt $s.BranchNameLimit)
+    {
+        $branchName = "{0}{1}" -f $branchName.Substring(0,$s.BranchNameLimit), $s.TruncatedBranchSuffix
+    }
+
+    return $branchName
+}
+
 function Write-GitStatus($status) {
     $s = $global:GitPromptSettings
     if ($status -and $s) {
@@ -91,7 +105,7 @@ function Write-GitStatus($status) {
             $branchForegroundColor = $s.BranchAheadForegroundColor
         }
 
-        Write-Prompt $status.Branch -BackgroundColor $branchBackgroundColor -ForegroundColor $branchForegroundColor
+        Write-Prompt (Format-BranchName($status.Branch)) -BackgroundColor $branchBackgroundColor -ForegroundColor $branchForegroundColor
 
         if($s.EnableFileStatus -and $status.HasIndex) {
             Write-Prompt $s.BeforeIndexText -BackgroundColor $s.BeforeIndexBackgroundColor -ForegroundColor $s.BeforeIndexForegroundColor