add stale bot example

src/stale.php

@@ -0,0 +1,62 @@
+#!/usr/bin/php
+<?php
+/*
+1. loop through all issues:
+2. if issue has stale "label":
+2.1. if activity since label was added then remove label
+2.2. if still no activity in 7 days then close
+3. if issue doesn not has stale "label"
+3.1. if no activity in >30 dyas then add "stale" label
+*/
+
+// load the config, create the connection and load the repo sepcified on the cmd line args
+// we will then have $client and $repo available
+require 'setup.php';
+
+//get the stale label or create if not exist
+if (!$staleLabel = $repo->getLabelByName('stale')) {
+    $staleLabel = $repo->createLabel(['name' => 'stale', 'color' => '#ffffff']);
+}
+
+//define the function to process each issue
+$callback = function($issue) use ($staleLabel) {
+    $updatedTime=strtotime($issue->updated_at);
+    $updateDaysAgo=(time()-$updatedTime)/60/60/24;
+    echo "#{$issue->number} - $updateDaysAgo days ago - {$issue->title}\n";
+    if($issue->hasLabel($staleLabel)){
+        //when was it added?
+        $staleTime=null;
+        foreach($issue->getComments() as $comment){
+            if(substr($comment->body,0,35)=='This issue has been marked as stale'){
+                $staleTime=strtotime($comment->created_at);
+                $staleDaysAgo=(time()-$staleTime)/60/60/24;
+            }
+        }
+        if(!$staleTime){
+            echo "ERROR: cant find stale time\n";
+            return;
+        }
+
+        //if activity sice added then remove label
+        if($updatedTime>$staleTime){
+            $issue->removeLabel($staleLabel);
+            return;
+        }
+
+        //if no activity in 7 days then close
+        if($updateDaysAgo>7) {
+            $issue->state = 'closed';
+            $issue->save();
+            $issue->addComment('This issue has been automatically closed due to inactivity.');
+            return;
+        }
+    }elseif($updateDaysAgo>30){ //no stale label and >30 days
+        $issue->addLabel($staleLabel);
+        $issue->addComment('This issue has been marked as stale due to 30+ days of inactivity. If there is no futrher activity in the next 7 days it will be automatically closed.');
+        $issue->save();
+        return;
+    }
+};
+
+//loop through all issues and call the callback
+$repo->forIssues($callback);