Update version code

APP_VERSIONS_LIST

@@ -4,3 +4,5 @@ b43527c
 83acd30
 b2baee0
 13c4c19
+5668d65
+d494093

src/main.rb

@@ -59,6 +59,7 @@ def main
   grace_deadline = Time.now + INITIAL_GRACE
   while Time.now < grace_deadline
     sleep 5
+    SystemdNotifier.notify('WATCHDOG=1')
     next unless ServerStatusDetector::MinecraftServer.self_diag[:type]
 
     MethodExecutor.record('info', 'mainloop',
@@ -77,19 +78,21 @@ def main_once
   (0...TRY_TIMES).each do
     chkrslt = ServerStatusDetector::MinecraftServer.self_diag
     chkrslts.append(chkrslt)
+    sleep 0.5 unless chkrslt[:type] # 只在失败时等待后再重试
   end
   if chkrslts.all? { |chkrslt_in| chkrslt_in[:type] }
     MethodExecutor.record('debug', 'mainloop', 'Server health check passed.')
+    MethodExecutor.reset_rst_counter
   else
     chkrslts.each do |result|
       MethodExecutor.record('warn', 'mainloop', "Server health check FAILED: #{result[:message]}")
     end
     MethodExecutor.record('info', 'mainloop', "Checked #{TRY_TIMES} time.")
-    if chkrslts.any? { |chkrslt_in| chkrslt_in[:operation].include?('Record') }
+    if chkrslts.any? { |chkrslt_in| (chkrslt_in[:operation] || []).include?('Record') }
       MethodExecutor.record('warn', 'mainloop', 'Action: Record -> Server died!')
-      if chkrslts.any? { |chkrslt_in| chkrslt_in[:message] == 'Server died for unknown reason, and will be restarted.' }
+      if chkrslts.any? { |chkrslt_in| (chkrslt_in[:operation] || []).include?('ForceResetServerProcess') }
         MethodExecutor.record('info', 'mainloop', 'Action: ForceResetServerProcess triggered.')
-        MethodExecutor.reset_minecraft_server
+        if MethodExecutor.reset_minecraft_server
           # 重启后等待服务器启动（MC服务器启动通常需要30秒~2分钟）
           cooldown_beg = Time.now
           MethodExecutor.record('info', 'mainloop', "Cooling down #{RST_COOLDOWN_DURATION}s for server startup...")
@@ -104,6 +107,7 @@ def main_once
       end
     end
   end
+end
 
 # rubocop:enable Metrics/MethodLength, Metrics/AbcSize, Metrics/CyclomaticComplexity, Metrics/PerceivedComplexity
 def main_loop

src/method_executor.rb

@@ -66,13 +66,13 @@ class MethodExecutor
   # rubocop:enable Metrics/MethodLength
   # rubocop:disable Metrics/MethodLength, Metrics/AbcSize, Metrics/CyclomaticComplexity, Metrics/PerceivedComplexity
 
-  # @return [void]
+  # @return [Boolean] true if a restart was attempted, false if recovered from idle
   def self.reset_minecraft_server
     record('info', 'reset', "Attempt ##{@@rst_counter + 1} to reset Minecraft server.")
 
     if @@rst_counter >= RST_COUNTS_LIMIT
       record('error', 'reset',
-             "Tried #{RST_COUNTS_LIMIT} times and failed, now I'll idle until server is manually restarted.")
+             "Tried #{RST_COUNTS_LIMIT} times and failed, now I'll idle until server is manually recovered.")
       loop do
         sleep 10
         SystemdNotifier.notify('WATCHDOG=1') if defined?(SystemdNotifier)
@@ -80,7 +80,7 @@ class MethodExecutor
 
         record('info', 'reset', 'Server recovered! Resuming normal monitoring.')
         @@rst_counter = 0
-        return
+        return false
       end
     end
 
@@ -106,7 +106,6 @@ class MethodExecutor
         elapsed = (Time.now - tick_beg).round(2)
         if status.success?
           record('info', 'reset', "'systemctl restart' succeeded in #{elapsed}s.")
-          @@rst_counter = 0 # 成功时重置计数器
         else
           record('error', 'reset',
                  "'systemctl restart' failed with exitcode #{status.exitstatus} after #{elapsed}s.")
@@ -128,6 +127,13 @@ class MethodExecutor
       end
       # rubocop:enable Metrics/BlockLength
     end
+    true
+  end
+
+  # Resets the restart counter when server health check passes.
+  # @return [void]
+  def self.reset_rst_counter
+    @@rst_counter = 0
   end
   # rubocop:enable Metrics/MethodLength, Metrics/AbcSize, Metrics/CyclomaticComplexity, Metrics/PerceivedComplexity
   # rubocop:enable Style/ClassVars

src/server_status_detector.rb

@@ -24,7 +24,7 @@ module ServerStatusDetector
     # @param port [Integer]
     # @param timeout [Integer]
     # @return [Hash{Symbol=>Integer, Symbol=>Symbol, Symbol=>Float,nil}]
-    def self.test_port(host = '127.0.0.1', port = 25_565, timeout = 10)
+    def self.test_port(host = '127.0.0.1', port = 25_565, timeout = 2)
       result = {
         port: port,
         status: :unknown,

src/systemd_notifier.rb

@@ -17,6 +17,7 @@
 # Sends keep-alive notifications (including WATCHDOG=1) to systemd
 # via the NOTIFY_SOCKET datagram socket, enabling service supervision.
 class SystemdNotifier
+  require 'socket'
   require_relative 'method_executor'
 
 
@@ -52,7 +53,6 @@ class SystemdNotifier
       MethodExecutor.record('debug', 'heartbeat', "Heartbeat sent: #{message}")
     rescue StandardError => e
       MethodExecutor.record('error', 'heartbeat', "Failed to send heartbeat: #{e}")
-      @enable_heartbeat = false
     end
   end
 end

src/updates.rb

@@ -18,11 +18,11 @@ require 'net/http'
 require 'uri'
 
 # @type const RELEASE_SERIAL_CODE: String
-RELEASE_SERIAL_CODE = '13c4c19'
+RELEASE_SERIAL_CODE = 'd494093'
 # @type const CHANNEL: String
 CHANNEL = 'dev'
 # @type const VERSION_LIST_URL: String
-VERSION_LIST_URL = "https://gitee.com/api/v5/repos/SCU_team/mine-sentinel/contents/APP_VERSIONS_LIST?ref=#{CHANNEL}"
+VERSION_LIST_URL = "https://gitee.com/SCU_team/mine-sentinel/raw/#{CHANNEL}/APP_VERSIONS_LIST"
 # @type const RECURSIVE_RETRY_DEPTH: Integer
 RECURSIVE_RETRY_DEPTH = 3
 
@@ -32,14 +32,21 @@ class UpdateManager
   def self.fetch
     MethodExecutor.record('debug', 'updates', "Fetching version list from #{VERSION_LIST_URL}")
     uri = URI(VERSION_LIST_URL)
+    5.times do # 跟随重定向（Gitee raw URL → raw.giteeusercontent.com）
       response = Net::HTTP.get_response(uri)
       case response.code.to_i
       when 200
         MethodExecutor.record('debug', 'updates', 'Version list fetched successfully.')
-      response.body
+        return response.body
+      when 301, 302, 307, 308
+        uri = URI(response['location'])
+        MethodExecutor.record('debug', 'updates', "Following redirect to #{uri}")
+        next
       else
         raise "Unexpected HTTP response code: #{response.code}"
       end
+    end
+    raise 'Too many redirects'
   rescue StandardError => e
     MethodExecutor.record('error', 'updates', "Failed to fetch version list: #{e}")
     nil