Add FreeBSD service

contrib/FreeBSD/README

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+This folder contains sopel and sopel-default.cfg designed to be distributed by third parties such as FreeBSD.
+
+`sopel-default.cfg` is a default configuration file for sopel. The -default prefix is mandatory and will be used as a 'profile'. The profiles may be changed with the variable `sopel_profiles` in `/etc/rc.conf`. For example:
+
+```sh
+sysrc sopel_profiles="profile1 profile2 profile3"
+```
+
+The configuration files should be `${sopel_confdir}/${sopel_prefix}profile1.cfg`, `${sopel_confdir}/${sopel_prefix}profile2.cfg` and `${sopel_confdir}/${sopel_prefix}profile3.cfg`. The variable `sopel_confdir` is the default configuration directory (by default `/usr/local/etc`). `sopel_prefix`is the prefix for all files (by default `sopel-`).
+
+The service must be installed in `/usr/local/etc/rc.d`:
+
+```sh
+cp sopel /usr/local/etc/rc.d
+chmod +x /usr/local/etc/rc.d/sopel
+```
+
+The default configuration file must be installed in ${sopel_confdir}. For example:
+
+```sh
+cp sopel-default.cfg /usr/local/etc
+```
+
+If you want to run sopel at startup, the variable `sopel_enable` must be set to `YES`:
+
+```sh
+sysrc sopel_enable="YES"
+```
+
+If you want to change the python version, the variable `sopel_interpreter` (by default `/usr/local/bin/python3.9`) must be changed.
+
+Default values:
+
+```sh
+$ egrep -E '^: \$\{sopel_.+:=.+}' sopel
+: ${sopel_enable:="NO"}
+: ${sopel_piddir:="/var/run/sopel"}
+: ${sopel_confdir:=/usr/local/etc}
+: ${sopel_flags:=--config-dir "${sopel_confdir}"}
+: ${sopel_program:="/usr/local/bin/sopel"}
+: ${sopel_user:=${name}}
+: ${sopel_interpreter:=/usr/local/bin/python3.9}
+: ${sopel_profiles:=default}
+: ${sopel_prefix:=sopel-}
+: ${sopel_output:=/dev/null}
+```

contrib/FreeBSD/sopel

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+#!/bin/sh
+
+# PROVIDE: sopel
+# REQUIRE: FILESYSTEM NETWORKING usr
+
+. /etc/rc.subr
+
+name="sopel"
+desc="Simple, easy-to-use, open-source IRC utility bot, written in Python"
+rcvar="${name}_enable"
+start_cmd="sopel_start"
+stop_cmd="sopel_stop"
+restart_cmd="sopel_restart"
+status_cmd="sopel_status"
+configure_cmd="sopel_configure"
+extra_commands="configure"
+
+load_rc_config "${name}"
+
+: ${sopel_enable:="NO"}
+: ${sopel_piddir:="/var/run/sopel"}
+: ${sopel_confdir:=/usr/local/etc}
+: ${sopel_flags:=--config-dir "${sopel_confdir}"}
+: ${sopel_program:="/usr/local/bin/sopel"}
+: ${sopel_user:=${name}}
+: ${sopel_interpreter:=/usr/local/bin/python3.9}
+: ${sopel_profiles:=default}
+: ${sopel_prefix:=sopel-}
+: ${sopel_output:=/dev/null}
+
+sopel_start()
+{
+	local profile
+
+	profile="$1"; shift
+
+	echo "Starting sopel profile '${profile}'." && sleep 1
+        /usr/sbin/daemon \
+		-o "${sopel_output}" \
+		-t "${desc}" \
+		-u "${sopel_user}" \
+		${sopel_interpreter} \
+		${sopel_program} start ${sopel_flags} \
+			-c "${sopel_prefix}${profile}" $@
+}
+
+sopel_stop()
+{
+	local pid pidfile profile
+
+	profile="$1"; shift
+
+	pidfile="${sopel_piddir}/${sopel_prefix}${sopel_prefix}${profile}.pid"
+	if ! [ -f "${pidfile}" ]; then
+		return 1
+	fi
+
+	pid=`cat ${pidfile}`
+
+	echo "Stopping sopel profile '${profile}'."
+        /usr/sbin/daemon \
+		-o "${sopel_output}" \
+		${sopel_interpreter} \
+		${sopel_program} stop ${sopel_flags} \
+			-c "${sopel_prefix}${profile}" $@
+
+	wait_for_pids $pid
+}
+
+sopel_restart()
+{
+	local profile
+
+	profile="$1"; shift
+
+        run_rc_command stop "${profile}" $@ &&
+        sleep 1 &&
+        run_rc_command start "${profile}" $@
+}
+
+sopel_status()
+{
+	local profile pid
+
+	profile="$1"; shift
+
+	pid=`check_pidfile \
+		"${sopel_piddir}/${sopel_prefix}${sopel_prefix}${profile}.pid" \
+		"${sopel_program}" \
+		"${sopel_interpreter}"`
+
+	if [ -n "${pid}" ]; then
+		echo "Sopel profile '${profile}' is running as pid ${pid}."
+	else
+		echo "Sopel profile '${profile}' is not running."
+	fi
+}
+
+sopel_configure()
+{
+	local profile
+
+	profile="$1"; shift
+
+	echo "Configuring profile '${profile}'..."
+
+	${sopel_interpreter} \
+        ${sopel_program} configure ${sopel_flags} \
+		-c "${sopel_confdir}/${sopel_prefix}${profile}" $@
+}
+
+cmd="$1"; shift
+for profile in $sopel_profiles; do
+	if ! [ -f "${sopel_confdir}/${sopel_prefix}${profile}.cfg" ]; then
+		echo "Sopel profile '${profile}' does not exist."
+		continue
+	fi
+
+	run_rc_command "${cmd}" "${profile}" $@
+done

contrib/FreeBSD/sopel-default.cfg

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+#
+# IMPORTANT NOTES!
+# You must delete the not_configured line in order for the bot to work,
+# otherwise it will refuse to start.
+#
+# You must create homedir. Sopel should create the others directories:
+#  mkdir -p $homedir
+# The service file has a variable called 'sopel_user'. This user name
+# must exist. After creating the user, the owner of the logdir, 
+# pid_dir and homedir directories must be changed. By default,
+# the value is 'sopel':
+#  chown sopel:sopel $logdir
+#  chown sopel:sopel $pid_dir
+#  chown sopel:sopel $homedir
+# 
+[core]
+nick=sopel
+not_configured=True
+host=irc.libera.chat
+port=6697
+use_ssl=True
+verify_ssl=True
+owner=
+logdir=/var/log/sopel
+pid_dir=/var/run/sopel
+homedir=/var/db/sopel