docker-minecraft-server/start-spiget

#!/bin/bash
set -euo pipefail
IFS=$'\n\t'

. ${SCRIPTS:-/}start-utils
handleDebugMode

: ${SPIGET_RESOURCES:=}

containsJars() {
  file=${1?}

  pat='\.jar$'

  while read -r line; do
    if [[ $line =~ $pat ]]; then
      return 0
    fi
  done <<<$(unzip -l "$file")

  return 1
}

getResourceFromSpiget() {
  resource=${1?}

  log "Downloading resource ${resource} ..."

  mkdir -p /data/plugins

  if [ -f /data/plugins/.${resource} ]; then
    log "Resource '${resource}' already downloaded"
  else
    tmpfile="/tmp/${resource}.zip"
    url="https://api.spiget.org/v2/resources/${resource}/download"
    if ! curl -o "${tmpfile}" -fsSL -H "User-Agent: itzg/minecraft-server" "${extraCurlArgs[@]}" "${url}"; then
      log "ERROR failed to download resource '${resource}' from ${url}"
      exit 2
    fi

    if containsJars "${tmpfile}"; then
      log "Extracting contents of resource ${resource} into plugins"
      unzip -o -q -d /data/plugins "${tmpfile}"
      touch "/data/plugins/.${resource}"
      rm "${tmpfile}"
    else
      log "Moving resource ${resource} into plugins"
      mv "${tmpfile}" "/data/plugins/${resource}.jar"
      touch "/data/plugins/.${resource}"
    fi
  fi

}

if [[ ${SPIGET_RESOURCES} ]]; then
  if isTrue ${REMOVE_OLD_MODS:-false}; then
    removeOldMods /data/plugins
    REMOVE_OLD_MODS=false
  fi

  log "Getting plugins via Spiget"
  IFS=',' read -r -a resources <<<"${SPIGET_RESOURCES}"
  for resource in "${resources[@]}"; do
    getResourceFromSpiget "${resource}"
  done
fi

# Continue to Final Setup
exec ${SCRIPTS:-/}start-finalSetupWorld $@