Improve local development (#3661)

2026-08-28 09:53:20 +00:00 · 2025-09-19 15:07:35 -05:00
parent 9cbe5c2228
commit 81cbc72ae9
55 changed files with 161 additions and 147 deletions
@@ -0,0 +1,143 @@
+#!/bin/bash
+
+. "$(dirname "$0")/autopause-fcns.sh"
+
+# shellcheck source=../start-utils
+. "$(dirname "$0")/../start-utils"
+if isTrue "${DEBUG_AUTOPAUSE}"; then
+  set -x
+fi
+
+autopause_error_loop() {
+  logAutopause "Available interfaces within the docker container:"
+  logAutopause "  $(mc-image-helper network-interfaces)"
+  logAutopause "Please set the environment variable AUTOPAUSE_KNOCK_INTERFACE to the interface that handles incoming connections."
+  logAutopause "If unsure which interface to choose, run the ifconfig command in the container."
+  logAutopause "Autopause failed to initialize. This log entry will be printed every 30 minutes."
+  while :
+  do
+    sleep 1800
+    logAutopause "Autopause failed to initialize."
+  done
+}
+
+# wait for java process to be started
+while :
+do
+  if java_process_exists ; then
+    break
+  fi
+  sleep 0.1
+done
+
+# check for interface existence
+if [[ -z "$AUTOPAUSE_KNOCK_INTERFACE" ]] ; then
+  logAutopause "AUTOPAUSE_KNOCK_INTERFACE variable must not be empty!"
+  autopause_error_loop
+fi
+if ! mc-image-helper network-interfaces --check="$AUTOPAUSE_KNOCK_INTERFACE" ; then
+  logAutopause "Selected interface \"$AUTOPAUSE_KNOCK_INTERFACE\" does not exist!"
+  autopause_error_loop
+fi
+
+knockdArgs=(-c /tmp/knockd-config.cfg -d -i "$AUTOPAUSE_KNOCK_INTERFACE")
+if isTrue "${DEBUG_AUTOPAUSE}"; then
+  knockdArgs+=(-D)
+fi
+
+/usr/local/sbin/knockd "${knockdArgs[@]}"
+
+if [ $? -ne 0 ] ; then
+  logAutopause "Failed to start knockd daemon."
+  logAutopause "Probable cause: Unable to attach to interface \"$AUTOPAUSE_KNOCK_INTERFACE\"."
+  autopause_error_loop
+fi
+
+STATE=INIT
+
+while :
+do
+  isTrue "${DEBUG_AUTOPAUSE}" && log "DEBUG: autopause state = $STATE"
+  case X$STATE in
+  XINIT)
+    # Server startup
+    if mc_server_listening ; then
+      TIME_THRESH=$(($(current_uptime)+$AUTOPAUSE_TIMEOUT_INIT))
+
+      if [ -e /data/.skip-pause ] ; then
+        logAutopause "'/data/.skip-pause' file is present - skipping pausing"
+      else
+        logAutopause "MC Server listening for connections - pausing in $AUTOPAUSE_TIMEOUT_INIT seconds"
+      fi
+
+      STATE=K
+    fi
+    ;;
+  XK)
+    # Knocked
+    if java_clients_connected ; then
+      logAutopause "Client connected - waiting for disconnect"
+      STATE=E
+    elif [ -e /data/.skip-pause ] ; then
+      logAutopause "'/data/.skip-pause' file is present - skipping pausing"
+      STATE=E
+    else
+      if [[ $(current_uptime) -ge $TIME_THRESH ]] ; then
+        logAutopause "No client connected since startup / knocked - pausing"
+        "$(dirname "$0")/pause.sh"
+        STATE=S
+      fi
+    fi
+    ;;
+  XE)
+    # Established
+    if ! java_clients_connected ; then
+      TIME_THRESH=$(($(current_uptime)+$AUTOPAUSE_TIMEOUT_EST))
+      logAutopause "All clients disconnected - pausing in $AUTOPAUSE_TIMEOUT_EST seconds"
+      STATE=I
+    fi
+    ;;
+  XI)
+    # Idle
+    if java_clients_connected ; then
+      logAutopause "Client reconnected - waiting for disconnect"
+      STATE=E
+    elif [ -e /data/.skip-pause ] ; then
+      TIME_THRESH=$(($(current_uptime)+$AUTOPAUSE_TIMEOUT_EST))
+      logAutopause "'/data/.skip-pause' file is present - skipping pausing"
+      STATE=E
+    else
+      if [[ $(current_uptime) -ge $TIME_THRESH ]] ; then
+        logAutopause "No client reconnected - pausing"
+        "$(dirname "$0")/pause.sh"
+        STATE=S
+      fi
+    fi
+    ;;
+  XS)
+    # Stopped
+    if rcon_client_exists ; then
+      "$(dirname "$0")/resume.sh"
+    fi
+    if java_running ; then
+      if java_clients_connected ; then
+        logAutopause "Client connected - waiting for disconnect"
+        STATE=E
+      else
+        TIME_THRESH=$(($(current_uptime)+$AUTOPAUSE_TIMEOUT_KN))
+        logAutopause "Server was knocked - waiting for clients or timeout"
+        STATE=K
+      fi
+    fi
+    ;;
+  *)
+    logAutopause "Error: invalid state: $STATE"
+    ;;
+  esac
+  if [[ "$STATE" == "S" ]] ; then
+    # before rcon times out
+    sleep 5
+  else
+    sleep "$AUTOPAUSE_PERIOD"
+  fi
+done