gems: include vendored metrisk without hitime dependency

hitime is only needed for Metriks::Timer and requires native extensions.
Those do not compile with default settings under Ubuntu 26.04 or Alpine 3.24.

lib/metriks/reporter/graphite.rb

@@ -0,0 +1,91 @@
+# Vendored from metriks 0.9.9.8 — https://github.com/eric/metriks
+# Copyright (c) 2012 Eric Lindvall, MIT licensed.
+# Trimmed to the subset dyndnsd uses (meters + registry + reporters).
+
+require 'socket'
+
+module Metriks::Reporter
+  class Graphite
+    attr_reader :host, :port
+
+    def initialize(host, port, options = {})
+      @host = host
+      @port = port
+
+      @prefix = options[:prefix]
+
+      @registry  = options[:registry] || Metriks::Registry.default
+      @interval  = options[:interval] || 60
+      @on_error  = options[:on_error] || proc { |ex| }
+    end
+
+    def socket
+      @socket = nil if @socket && @socket.closed?
+      @socket ||= TCPSocket.new(@host, @port)
+    end
+
+    def start
+      @thread ||= Thread.new do
+        loop do
+          sleep @interval
+
+          Thread.new do
+            begin
+              write
+            rescue Exception => ex
+              @on_error[ex] rescue nil
+            end
+          end
+        end
+      end
+    end
+
+    def stop
+      @thread.kill if @thread
+      @thread = nil
+    end
+
+    def restart
+      stop
+      start
+    end
+
+    def write
+      @registry.each do |name, metric|
+        case metric
+        when Metriks::Meter
+          write_metric name, metric, [
+            :count, :one_minute_rate, :five_minute_rate,
+            :fifteen_minute_rate, :mean_rate
+          ]
+        end
+      end
+    end
+
+    def write_metric(base_name, metric, keys, snapshot_keys = [])
+      time = Time.now.to_i
+
+      base_name = base_name.to_s.gsub(/ +/, '_')
+      if @prefix
+        base_name = "#{@prefix}.#{base_name}"
+      end
+
+      keys.flatten.each do |key|
+        name = key.to_s.gsub(/^get_/, '')
+        value = metric.send(key)
+        socket.write("#{base_name}.#{name} #{value} #{time}\n")
+      end
+
+      unless snapshot_keys.empty?
+        snapshot = metric.snapshot
+        snapshot_keys.flatten.each do |key|
+          name = key.to_s.gsub(/^get_/, '')
+          value = snapshot.send(key)
+          socket.write("#{base_name}.#{name} #{value} #{time}\n")
+        end
+      end
+    rescue Errno::EPIPE
+      socket.close
+    end
+  end
+end

lib/metriks/reporter/proc_title.rb

@@ -0,0 +1,63 @@
+# Vendored from metriks 0.9.9.8 — https://github.com/eric/metriks
+# Copyright (c) 2012 Eric Lindvall, MIT licensed.
+# Trimmed to the subset dyndnsd uses (meters + registry + reporters).
+
+module Metriks::Reporter
+  class ProcTitle
+    def initialize(options = {})
+      @rounding = options[:rounding] || 1
+      @prefix   = options[:prefix]   || $0.dup
+
+      @interval  = options[:interval] || 5
+      @on_error  = options[:on_error] || proc { |ex| }
+
+      @metrics  = []
+    end
+
+    def add(name, suffix = nil, &block)
+      @metrics << [ name, suffix, block ]
+    end
+
+    def empty?
+      @metrics.empty?
+    end
+
+    def start
+      @thread ||= Thread.new do
+        loop do
+          begin
+            unless @metrics.empty?
+              title = generate_title
+              if title && !title.empty?
+                $0 = "#{@prefix} #{title}"
+              end
+            end
+          rescue Exception => ex
+            @on_error[ex] rescue nil
+          end
+          sleep @interval
+        end
+      end
+    end
+
+    def stop
+      @thread.kill if @thread
+      @thread = nil
+    end
+
+    def restart
+      stop
+      start
+    end
+
+    protected
+    def generate_title
+      @metrics.collect do |name, suffix, block|
+        val = block.call
+        val = "%.#{@rounding}f" % val if val.is_a?(Float)
+
+        "#{name}: #{val}#{suffix}"
+      end.join(' ')
+    end
+  end
+end