From deb429f6557443e3cd3e8cf7cefcd15ae92df635 Mon Sep 17 00:00:00 2001
From: Elias Fleckenstein <eliasfleckenstein@web.de>
Date: Fri, 19 Feb 2021 13:50:20 +0100
Subject: [PATCH] Complete scripts collection

---
 scripts/console.sh             |  9 ++++
 scripts/internal.sh            | 78 ++++++++++++++++++++++++++++++++++
 scripts/restart.sh             |  8 ++++
 setup.sh => scripts/setup.sh   |  3 +-
 scripts/start.sh               |  8 ++++
 scripts/stop.sh                |  8 ++++
 update.sh => scripts/update.sh |  3 +-
 7 files changed, 115 insertions(+), 2 deletions(-)
 create mode 100755 scripts/console.sh
 create mode 100644 scripts/internal.sh
 create mode 100755 scripts/restart.sh
 rename setup.sh => scripts/setup.sh (82%)
 mode change 100644 => 100755
 create mode 100755 scripts/start.sh
 create mode 100755 scripts/stop.sh
 rename update.sh => scripts/update.sh (77%)
 mode change 100644 => 100755

diff --git a/scripts/console.sh b/scripts/console.sh
new file mode 100755
index 0000000..6751c0c
--- /dev/null
+++ b/scripts/console.sh
@@ -0,0 +1,9 @@
+#! /bin/bash
+# Elidragon v2 console script
+# Attach to the console of a world
+# Arguments: <worldname>
+
+source scripts/internal.sh
+
+assert_running $1
+screen -r `world_screenname $1`
diff --git a/scripts/internal.sh b/scripts/internal.sh
new file mode 100644
index 0000000..8bfd1fc
--- /dev/null
+++ b/scripts/internal.sh
@@ -0,0 +1,78 @@
+# internal functions used by Elidragon v2 scripts
+
+function world_lock {
+	echo "/tmp/ElidragonV2_$1_lock"
+}
+
+function world_screenname {
+	echo "Elidragon v2 - $1"
+}
+
+function kill_world {
+	kill `cat \`world_lock $1\``
+}
+
+function is_running {
+	return $(test -f `world_lock $1`)
+}
+
+function loop_worlds {
+	WORLDS=`ls worlds`
+	for WORLD in $WORLDS; do
+		$1 $WORLD
+	done
+}
+
+function assert_running {
+	if ! is_running $1; then
+		echo "Error: World $1 is not running"
+		exit 1
+	fi
+}
+
+function assert_not_running {
+	if is_running $1; then
+		echo "Error: World $1 is already running"
+		exit 1
+	fi
+}
+
+function start_world {
+	echo "Starting $1..."
+	assert_not_running $1
+
+	LOCK=`world_lock $1`
+
+	screen -dmS `world_screenname $1` bash -c "
+		while is_running $1; do
+			bash -c \"
+				echo \\$\\$ > $LOCK
+				exec minetest --server --terminal --world worlds/$1 --config worlds/$1/minetest.conf --logfile worlds/$1/debug.txt 
+			\"
+		done
+		rm $LOCK
+	"
+}
+
+function stop_world {
+	echo "Stopping $1..."
+	assert_running $1
+
+	kill_world $1
+	rm `world_lock $1`
+}
+
+function restart_world {
+	echo "Restarting $1..."
+	assert_running $1
+
+	kill_world $1
+}
+
+function run_one_or_all {
+	if [ -z "$2" ]; then
+		loop_worlds $1
+	else
+		$1 $2
+	fi
+}
diff --git a/scripts/restart.sh b/scripts/restart.sh
new file mode 100755
index 0000000..a39e454
--- /dev/null
+++ b/scripts/restart.sh
@@ -0,0 +1,8 @@
+#! /bin/bash
+# Elidragon v2 restart script
+# Restart one or all worlds
+# Arguments: [<worldname>]
+
+source scripts/internal.sh
+
+run_one_or_all restart_world $1
diff --git a/setup.sh b/scripts/setup.sh
old mode 100644
new mode 100755
similarity index 82%
rename from setup.sh
rename to scripts/setup.sh
index b385cfe..33e7eb8
--- a/setup.sh
+++ b/scripts/setup.sh
@@ -1,5 +1,6 @@
 #! /bin/bash
-# Setup script for the Elidragon v2 server
+# Elidragon v2 setup script
+# Install everything needed by the server
 
 # Initialize submodules
 git submodule update --recursive --remote
diff --git a/scripts/start.sh b/scripts/start.sh
new file mode 100755
index 0000000..96cc2fe
--- /dev/null
+++ b/scripts/start.sh
@@ -0,0 +1,8 @@
+#! /bin/bash
+# Elidragon v2 start script
+# Start one or all worlds
+# Arguments: [<worldname>]
+
+source scripts/internal.sh
+
+run_one_or_all start_world $1
diff --git a/scripts/stop.sh b/scripts/stop.sh
new file mode 100755
index 0000000..7e95f2c
--- /dev/null
+++ b/scripts/stop.sh
@@ -0,0 +1,8 @@
+#! /bin/bash
+# Elidragon v2 stop script
+# Stop one or all worlds
+# Arguments: [<worldname>]
+
+source scripts/internal.sh
+
+run_one_or_all stop_world $1
diff --git a/update.sh b/scripts/update.sh
old mode 100644
new mode 100755
similarity index 77%
rename from update.sh
rename to scripts/update.sh
index 5f9cfe6..78abf52
--- a/update.sh
+++ b/scripts/update.sh
@@ -1,5 +1,6 @@
 #! /bin/bash
-# Update script for the Elidragon v2 server
+# Elidragon v2 update script
+# Update all software used by the server
 
 # Update this repo, also update submodules
 git pull --recurse-submodules
-- 
2.44.0