Added gitter status plugin

ref majkinetor#80

AU/Plugins/Gitter.ps1

@@ -0,0 +1,44 @@
+# Author: Kim Nordmo <kim.nordmo@gmail.com>
+# Last Change: 2018-06-13
+<#
+.SYNOPSIS
+  Publishes the package update status to gitter.
+
+.PARAMETER WebHookUrl
+  This is the cusotm webhook url created through gitter integrations.
+
+.PARAMETER MessageFormat
+  The format of the message that is meant to be published on gitter.
+  {0} = The total number of automated packages.
+  {1} = The number of updated packages,
+  {2} = The number of published packages.
+  {3} = The number of failed packages.
+  {4} = The url to the github gist.
+#>
+param(
+  $Info,
+  [string]$WebHookUrl,
+  [string]$MessageFormat = "[Update Status:{0} packages.`n  {1} updated, {2} Published, {3} Failed]({4})"
+)
+
+if (!$WebHookUrl) { return } # If we don't have a webhookurl we can't push status messages, so ignore.
+
+$updatedPackages   = @($Info.result.updated).Count
+$publishedPackages = @($Info.result.pushed).Count
+$failedPackages    = $Info.error_count.total
+$gistUrl           = $Info.plugin_results.Gist -split '\n' | select -Last 1
+$packageCount      = $Info.result.all.Length
+
+$gitterMessage     = ($MessageFormat = -f $packageCount, $updatedPackages, $publishedPackages, $failedPackages, $gistUrl)
+
+$arguments = @{
+  Body             = if ($failedPackages -gt 0) { "message=$gitterMessage&level=error" } else { "message=$gitterMessage" }
+  UseBasicParsing  = $true
+  Uri              = $WebHookUrl
+  ContentType      = 'application/x-www-form-urlencoded'
+  Method           = 'Post'
+}
+
+"Submitting message to gitter"
+Invoke-RestMethod @arguments
+"Message submitted to gitter"