games-server/steamcmd: switch to dtach

This version changes the usage from app-misc/screen
to app-misc/dtach. A custom attach command is also
added with that switch.

Since at least the valve game server are running as an
interactive console process in background, this custom
command 'attach' enables the possibility to connect with
dtach to that interactive console and send commands to
the running server.

Package-Manager: Portage-3.0.4, Repoman-3.0.1
Signed-off-by: Conrad Kostecki <conikost@gentoo.org>

3 files changed, 119 insertions, 0 deletions

diff --git a/games-server/steamcmd/files/steamcmd.confd-r2 b/games-server/steamcmd/files/steamcmd.confd-r2
new file mode 100644
index 000000000000..5cd84e169f5a
--- /dev/null
+++ b/games-server/steamcmd/files/steamcmd.confd-r2
@@ -0,0 +1,20 @@
+# Copyright 1999-2020 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+# Dtach options, which will used, when the `attach` extra command is called.
+# By default, CTRL+D is used, and no signal is send,
+# when you want to detach from the attached console.
+DTACH_OPTS="-e '^D' -r none"
+
+# Specifies, which server binary is used.
+# This could be 'hlds_run' or 'srcds_run', depending on your game.
+# STEAMCMD_BINARY="hlds_run"
+
+# Path to the files of your started server.
+# It's recommended to use:
+# '/opt/steamcmd/hlds' for older HL1 based mods.
+# '/opt/steamcmd/srcds' for newer HL2 based mods.
+# STEAMCMD_PATH="/opt/steamcmd/hlds"
+
+# Options for your server binary.
+# STEAMCMD_OPTS="-game valve +ip 127.0.0.1 +maxplayers 32 +map crossfire -pingboost 3"
diff --git a/games-server/steamcmd/files/steamcmd.initd-r2 b/games-server/steamcmd/files/steamcmd.initd-r2
new file mode 100644
index 000000000000..4564d4526813
--- /dev/null
+++ b/games-server/steamcmd/files/steamcmd.initd-r2
@@ -0,0 +1,47 @@
+#!/sbin/openrc-run
+# Copyright 1999-2020 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+if [ "${SVCNAME}" = "steamcmd" ]; then
+	instance="main"
+else
+	instance="${SVCNAME#steamcmd.}"
+fi
+
+dtach_tmpfile="$(mktemp -u)"
+name="SteamCMD (Mod: ${instance})"
+pidfile="/run/steamcmd.${instance}.pid"
+start_stop_daemon_args="--chdir ${STEAMCMD_PATH}"
+
+description_attach="Attaches to the session (non-interactive console) of the SteamCMD game server"
+extra_started_commands="attach"
+
+command="/usr/bin/dtach"
+command_args="-N ${dtach_tmpfile} ${STEAMCMD_PATH}/${STEAMCMD_BINARY} ${STEAMCMD_OPTS}"
+command_background="true"
+command_group="steamcmd"
+command_user="steamcmd"
+
+depend() {
+	use net
+}
+
+start_pre() {
+	if [ -z "${STEAMCMD_BINARY}" ] || [ -z "${STEAMCMD_PATH}" ]; then
+		eerror "One or more STEAMCMD_* variables in /etc/conf.d/${SVCNAME} are not set!"
+		return 1
+	fi
+	return 0
+}
+
+attach() {
+	pidnumber="$(cat ${pidfile})"
+	dtach_tmpfile="$(cat /proc/${pidnumber}/cmdline | tr '\0' ' ' | awk '{print $3}')"
+
+	if [ -S "${dtach_tmpfile}" ]; then
+		eval "${command}" -a "${dtach_tmpfile}" "${DTACH_OPTS}"
+	else
+		eerror "The determined socket file for dtach could not be found!"
+		eerror "Did the process crash?"
+	fi
+}
diff --git a/games-server/steamcmd/steamcmd-1.0-r3.ebuild b/games-server/steamcmd/steamcmd-1.0-r3.ebuild
new file mode 100644
index 000000000000..1c33b66301d8
--- /dev/null
+++ b/games-server/steamcmd/steamcmd-1.0-r3.ebuild
@@ -0,0 +1,52 @@
+# Copyright 1999-2020 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=7
+
+inherit readme.gentoo-r1
+
+DESCRIPTION="This is the command-line version of the Steam client for dedicated servers"
+HOMEPAGE="https://developer.valvesoftware.com/wiki/SteamCMD"
+SRC_URI="https://steamcdn-a.akamaihd.net/client/installer/steamcmd_linux.tar.gz -> ${P}.tar.gz"
+
+LICENSE="LGPL-2.1+ Steam"
+SLOT="0"
+KEYWORDS="-* ~amd64 ~x86"
+
+RDEPEND="
+	acct-group/steamcmd
+	acct-user/steamcmd
+	app-misc/dtach
+"
+
+RESTRICT="bindist mirror"
+
+S="${WORKDIR}"
+
+QA_PREBUILT="
+	opt/steamcmd/linux32/libstdc++.so.6
+	opt/steamcmd/linux32/steamcmd
+"
+
+src_install() {
+	diropts -o steamcmd -g steamcmd
+	dodir /opt/steamcmd
+	keepdir /opt/steamcmd/{.steam,.steam/sdk32,linux32}
+
+	exeopts -o steamcmd -g steamcmd
+	exeinto /opt/steamcmd
+	doexe steamcmd.sh
+
+	exeopts -o steamcmd -g steamcmd
+	exeinto /opt/steamcmd/linux32
+	doexe linux32/steamcmd linux32/libstdc++.so.6
+
+	newinitd "${FILESDIR}"/steamcmd.initd-r2 steamcmd
+	newconfd "${FILESDIR}"/steamcmd.confd-r2 steamcmd
+
+	readme.gentoo_create_doc
+}
+
+pkg_postinst() {
+	readme.gentoo_print_elog
+}