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+#!/bin/bash
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+# LinuxGSM update_papermc.sh function
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+# Author: Daniel Gibbs
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+# Contributors: http://linuxgsm.com/contrib
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+# Website: https://linuxgsm.com
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+# Description: Handles updating of PaperMC and Waterfall servers.
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+
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+local commandname="UPDATE"
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+local commandaction="Update"
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+local function_selfname="$(basename "$(readlink -f "${BASH_SOURCE[0]}")")"
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+
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+fn_update_papermc_dl(){
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+ # get build info
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+ builddata=$(curl -s "https://${remotelocation}/api/v2/projects/${paperproject}/versions/${paperversion}/builds/${remotebuild}" | jq '.downloads' )
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+ buildname=$(echo -e "${builddata}" | jq -r '.application.name')
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+ buildsha256=$(echo -e "${builddata}" | jq -r '.application.sha256')
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+
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+ fn_fetch_file "https://${remotelocation}/api/v2/projects/${paperproject}/versions/${paperversion}/builds/${remotebuild}/downloads/${buildname}" "" "" "" "${tmpdir}" "${buildname}" "nochmodx" "norun" "force" "${buildsha256}"
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+
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+ echo -e "copying to ${serverfiles}...\c"
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+ cp -f "${tmpdir}/${buildname}" "${serverfiles}/${executable#./}"
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+ local exitcode=$?
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+ if [ "${exitcode}" == "0" ]; then
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+ fn_print_ok_eol_nl
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+ fn_script_log_pass "Copying to ${serverfiles}"
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+ chmod u+x "${serverfiles}/${executable#./}"
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+ echo "${remotebuild}" > "${localversionfile}"
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+ fn_clear_tmp
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+ else
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+ fn_print_fail_eol_nl
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+ fn_script_log_fatal "Copying to ${serverfiles}"
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+ core_exit.sh
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+ fi
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+}
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+
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+fn_update_papermc_localbuild(){
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+ # Gets local build info.
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+ fn_print_dots "Checking for update: ${remotelocation}: checking local build"
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+ sleep 0.5
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+
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+ if [ ! -f "${localversionfile}" ]; then
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+ fn_print_error_nl "Checking for update: ${remotelocation}: checking local build: no local build files"
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+ fn_script_log_error "No local build file found"
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+ else
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+ localbuild=$(head -n 1 "${localversionfile}")
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+ fi
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+
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+ if [ -z "${localbuild}" ]; then
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+ localbuild="0"
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+ fn_print_error "Checking for update: ${remotelocation}: waiting for local build: missing local build info"
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+ fn_script_log_error "Missing local build info, Set localbuild to 0"
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+ else
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+ fn_print_ok "Checking for update: ${remotelocation}: checking local build"
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+ fn_script_log_pass "Checking local build"
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+ fi
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+ sleep 0.5
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+}
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+
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+fn_update_papermc_remotebuild(){
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+ # Gets remote build info.
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+ remotebuild=$(curl -s "https://${remotelocation}/api/v2/projects/${paperproject}/versions/${paperversion}" | jq -r '.builds[-1]')
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+
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+ # Checks if remotebuild variable has been set.
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+ if [ -z "${remotebuild}" ]||[ "${remotebuild}" == "null" ]; then
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+ fn_print_failure "Unable to get remote build"
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+ fn_script_log_fatal "Unable to get remote build"
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+ core_exit.sh
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+ else
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+ fn_print_ok "Got build for version ${paperversion}"
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+ fn_script_log "Got build for version ${paperversion}"
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+ fi
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+}
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+
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+fn_update_papermc_compare(){
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+ fn_print_dots "Checking for update: ${remotelocation}"
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+ sleep 0.5
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+ if [ "${localbuild}" != "${remotebuild}" ]||[ "${forceupdate}" == "1" ]; then
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+ fn_print_ok_nl "Checking for update: ${remotelocation}"
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+ echo -en "\n"
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+ echo -e "Update available for version ${paperversion}"
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+ echo -e "* Local build: ${red}${localbuild}${default}"
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+ echo -e "* Remote build: ${green}${remotebuild}${default}"
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+ fn_script_log_info "Update available for version ${paperversion}"
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+ fn_script_log_info "Local build: ${localbuild}"
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+ fn_script_log_info "Remote build: ${remotebuild}"
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+ fn_script_log_info "${localbuild} > ${remotebuild}"
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+ echo -en "\n"
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+ echo -en "applying update.\r"
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+ echo -en "\n"
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+
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+ unset updateonstart
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+
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+ check_status.sh
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+ # If server stopped.
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+ if [ "${status}" == "0" ]; then
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+ fn_update_papermc_dl
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+ # If server started.
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+ else
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+ exitbypass=1
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+ command_stop.sh
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+ exitbypass=1
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+ fn_update_papermc_dl
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+ exitbypass=1
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+ command_start.sh
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+ fi
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+ alert="update"
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+ alert.sh
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+ else
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+ fn_print_ok_nl "Checking for update: ${remotelocation}"
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+ echo -en "\n"
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+ echo -e "No update available for version ${paperversion}"
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+ echo -e "* Local build: ${green}${localbuild}${default}"
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+ echo -e "* Remote build: ${green}${remotebuild}${default}"
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+ fn_script_log_info "No update available"
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+ fn_script_log_info "Local build: ${localbuild}"
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+ fn_script_log_info "Remote build: ${remotebuild}"
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+ fi
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+}
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+
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+# The location where the builds are checked and downloaded.
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+remotelocation="papermc.io"
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+
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+if [ "${shortname}" == "pmc" ]; then
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+ paperproject="paper"
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+elif [ "${shortname}" == "wmc" ]; then
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+ paperproject="waterfall"
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+fi
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+
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+localversionfile="${datadir}/${paperproject}-version"
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+
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+# check if datadir was created, if not create it
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+if [ ! -d "${datadir}" ]; then
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+ mkdir -p "${datadir}"
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+fi
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+
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+# check version if the user did set one and check it
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+if [ "${mcversion}" == "latest" ]; then
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+ paperversion=$(curl -s "https://${remotelocation}/api/v2/projects/${paperproject}" | jq -r '.versions[-1]')
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+else
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+ # check if version there for the download from the api
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+ paperversion=$(curl -s "https://${remotelocation}/api/v2/projects/${paperproject}" | jq -r -e --arg mcversion "${mcversion}" '.versions[]|select(. == $mcversion)')
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+ if [ -z "${paperversion}" ]; then
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+ # user passed version does not exist
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+ fn_print_error_nl "Version ${mcversion} not available from ${remotelocation}"
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+ fn_script_log_error "Version ${mcversion} not available from ${remotelocation}"
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+ core_exit.sh
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+ fi
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+fi
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+
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+if [ "${firstcommandname}" == "INSTALL" ]; then
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+ fn_update_papermc_remotebuild
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+ fn_update_papermc_dl
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+else
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+ fn_print_dots "Checking for update: ${remotelocation}"
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+ fn_script_log_info "Checking for update: ${remotelocation}"
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+ sleep 0.5
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+ fn_update_papermc_localbuild
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+ fn_update_papermc_remotebuild
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+ fn_update_papermc_compare
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+fi
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