Install Spigot onto gentoo

(Personal memo) To build / upgrade / run Spigot on Gentoo linux.

cd /opt/Bukkit
wget https://hub.spigotmc.org/jenkins/job/BuildTools/lastSuccessfulBuild/artifact/target/BuildTools.jar
java -jar BuildTools.jar --rev latest

/etc/init.d/spigot-server.fktn-spigot stop

cp -a spigot-n.n.n.jar spigot-server.jar
cd /var/lib/spigot-server/fktn-spigot
java -jar /opt/Bukkit/spigot-server.jar --forceUpgrade
---wait for a while---
> stop

chown minecraft:minecraft logs/*
/etc/init.d/spigot-server.fktn-spigot start

Reuse scripts from games-server/minecraft-server as much as possible.

# cp -a /etc/init.d/minecraft-server /etc/init.d/spigot-server

And update the file as below.

# diff -Naur /etc/init.d/minecraft-server /etc/init.d/spigot-server
--- /etc/init.d/minecraft-server        2020-02-22 02:55:43.455930529 +0900
+++ /etc/init.d/spigot-server   2020-03-11 00:35:34.772524254 +0900
@@ -2,20 +2,20 @@
 # Copyright 1999-2019 Gentoo Authors
 # Distributed under the terms of the GNU General Public License v2

-if [ "${SVCNAME}" = "minecraft-server" ]; then
+if [ "${SVCNAME}" = "spigot-server" ]; then
        instance="main"
 else
-       instance="${SVCNAME#minecraft-server.}"
+       instance="${SVCNAME#spigot-server.}"
 fi

 dtach_tmpfile="$(mktemp -u)"
-minecraft_command="/usr/bin/minecraft-server"
-minecraft_logs="/var/log/minecraft-server"
+minecraft_command="/opt/Bukkit/spigot-server"
+minecraft_logs="/var/log/spigot-server"
 minecraft_logs_instance="${minecraft_logs}/${instance}"
-minecraft_path="/var/lib/minecraft-server"
+minecraft_path="/var/lib/spigot-server"
 minecraft_path_instance="${minecraft_path}/${instance}"
-name="Minecraft Server (World: ${instance})"
-pidfile="/run/minecraft-server.${instance}.pid"
+name="Minecraft Spigot Server (World: ${instance})"
+pidfile="/run/spigot-server.${instance}.pid"
 start_stop_daemon_args="--chdir ${minecraft_path_instance} --env JAVA_OPTS='${MINECRAFT_OPTS}'"

 command="/usr/bin/dtach"
@@ -37,11 +37,11 @@
        checkpath -d -o "${command_user}:${command_group}" -q "${minecraft_logs}" "${minecraft_logs_instance}"

        if [ ! -L "${minecraft_path_instance}"/logs ]; then
-               cd "${minecraft_path_instance}" && ln -s ../../../log/minecraft-server/"${instance}" logs
+               cd "${minecraft_path_instance}" && ln -s ../../../log/spigot-server/"${instance}" logs
        fi

        if [ -z "${MINECRAFT_OPTS}" ]; then
-               eerror "You must define MINECRAFT_OPTS in /etc/conf.d/minecraft.${SVCNAME}!"
+               eerror "You must define MINECRAFT_OPTS in /etc/conf.d/spigot.${SVCNAME}!"
                return 1
        fi
 }

A command "gjl" seeks necessary information from below directory.

# cp -a /usr/share/minecraft-server /usr/share/spigot-server

And update one of the files as below.

# diff -Naur /usr/share/minecraft-server /usr/share/spigot-server
diff -Naur /usr/share/minecraft-server/package.env /usr/share/spigot-server/package.env
--- /usr/share/minecraft-server/package.env     2020-02-22 02:55:43.302931767 +0900
+++ /usr/share/spigot-server/package.env        2020-03-11 01:04:13.044330434 +0900
@@ -3,7 +3,7 @@
 SLOT="0"
 CATEGORY="games-server"
 PVR="1.15.2"
-CLASSPATH="//usr/share/minecraft-server/lib/minecraft-server.jar"
+CLASSPATH="//opt/Bukkit/spigot-server.jar"
 VM=">=virtual/jre-1.8"
 TARGET="1.8"
 SOURCE="1.8"