Misc fixes and improvements

* Added request logging to com.noccy.apiclient
* Added plugin com.noccy.watcher
* Added pipe command and filter support
* Fixes and stubs

plugins/com.noccy.watcher/Monitor/MonitorInterface.php

@@ -0,0 +1,28 @@
+<?php
+
+namespace SparkPlug\Com\Noccy\Watcher\Monitor;
+
+use SparkPlug\Com\Noccy\Watcher\Rule;
+
+interface MonitorInterface
+{
+    /**
+     * Add a rule to be watched for changes
+     */
+    public function add(Rule $rule);
+
+    /**
+     * Return a list of modified filenames
+     */
+    public function getModified(): array;
+
+    /**
+     * Return a list of watched filenames
+     */
+    public function getWatched(): array;
+
+    /**
+     * Called periodically to refresh monitors
+     */
+    public function loop();
+}

plugins/com.noccy.watcher/Monitor/MtimeMonitor.php

@@ -0,0 +1,77 @@
+<?php
+
+namespace SparkPlug\Com\Noccy\Watcher\Monitor;
+
+use SparkPlug\Com\Noccy\Watcher\Rule;
+
+class MtimeMonitor implements MonitorInterface
+{
+    private array $rules = [];
+
+    private array $watched = [];
+
+    private array $modified = [];
+
+    /**
+     * {@inheritDoc}
+     */
+    public function add(Rule $rule)
+    {
+        $this->rules[] = $rule;
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    public function getModified(): array
+    {
+        $mod = $this->modified;
+        $this->modified = [];
+        return $mod;
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    public function getWatched(): array
+    {
+        return [];        
+    }
+
+    public function loop()
+    {
+        foreach ($this->rules as $rule) {
+            $this->checkRule($rule);
+        }
+    }
+
+    private function checkRule(Rule $rule)
+    {
+        clearstatcache();
+
+        $paths = $rule->getWatchedFiles();
+        $check = [];
+        foreach ($paths as $path) {
+            if (str_contains($path, '*')) {
+                $check = array_merge($check, glob($path));
+            } else {
+                $check[] = $path;
+            }
+        }
+
+        foreach ($check as $path) {
+            if (empty($this->watched[$path])) {
+                $this->watched[$path] = filemtime($path);
+            } else {
+                $mtime = filemtime($path);
+                if ($mtime > $this->watched[$path]) {
+                    printf("* modified: %s (%s)\n", $path, $rule->getName());
+                    $this->watched[$path] = $mtime;
+                    if (!in_array($rule, $this->modified)) {
+                        $this->modified[] = $rule;
+                    }
+                }
+            }
+        }
+    }
+}