Combine screen lock script for i3 and sway

tree/.local/bin/screenlock.tpl

@@ -0,0 +1,41 @@
+#!/bin/sh
+
+TMP_IMG="/tmp/lock.png"
+
+{% if hostname == "sputnik" %}
+
+LOCKPROG=i3lock
+LOCKARGS="-nef --image=$TMP_IMG"
+LOCKARGS_NOCOOL="-c 302f3b"
+OPTIONAL_CMDS="scrot lockscreen-blur"
+SCREENCAP="scrot -"
+BLUR_FACTOR=20
+
+{% elif hostname == "sputnik" %}
+
+LOCKPROG=swaylock
+LOCKARGS="--config ~/.config/sway/swaylock.config --image $TMP_IMG"
+LOCKARGS_NOCOOL="--config ~/.config/sway/swaylock.config --color 302f3b"
+OPTIONAL_CMDS="grim lockscreen-blur"
+SCREENCAP="grim -t ppm -"
+BLUR_FACTOR=40
+
+{% else %}
+echo "screenlock not configured for this system"
+exit 1
+{% end %}
+
+for CMD in $OPTIONAL_CMDS; do
+	if ! command -v "$CMD" &> /dev/null
+	then
+		echo "$CMD could not be found, falling back to basic mode."
+
+		$LOCKPROG $LOCKARGS_NOCOOL "$@"
+
+		exit 0
+	fi
+done
+
+$SCREENCAP | lockscreen-blur -o $TMP_IMG -b $BLUR_FACTOR --stamp ~/.config/wallpapers/ferris-stamp.png
+
+$LOCKPROG $LOCKARGS "$@"