update

gw.sh

@@ -31,6 +31,6 @@ run iptables -A INPUT  -i "$local_iface" -j ACCEPT
 run iptables -t nat -A POSTROUTING -o "$net_iface" -j MASQUERADE
 run iptables -A FORWARD -i $net_iface -o $local_iface -m state --state RELATED,ESTABLISHED -j ACCEPT
 run iptables -A FORWARD -i $local_iface -o $net_iface  -j ACCEPT
-run dnsmasq --dhcp-range=192.168.238.100,192.168.238.199,10m -d --server=9.9.9.9
+run dnsmasq --dhcp-range=192.168.238.100,192.168.238.199,10m -d --server=9.9.9.9 --listen-address 192.168.238.254 --interface "$local_iface" -p0
 
 clean

radicale_server.sh

@@ -0,0 +1,28 @@
+#!/bin/bash
+
+set -euo pipefail
+
+echo "vars"
+htpasswd="$(mktemp)"
+venv=~/.cache/radicale-venv
+#locale_ip_addr="$(ip -o -4 a show dev usb0 | grep -Po 'inet[[:space:]]+\K192.168.42.[0-9]{1,3}')"
+locale_ip_addr="192.168.42.58"
+port=5232
+
+if [ ! -d "$venv" ] || [ -z "$(ls -A "$venv")" ] ; then
+	virtualvenv "$venv"
+fi
+
+sudo ip a add "$locale_ip_addr" dev usb0
+
+echo "populating htpasswd. Enter password :"
+htpasswd -c "$htpasswd" dav
+
+echo "venv"
+. venv/bin/activate
+
+echo "runing on $locale_ip_addr:$port"
+python3 -m radicale -H "$locale_ip_addr:$port" --storage-filesystem-folder=~/.contacts --auth-type=htpasswd --auth-htpasswd-encryption md5 --auth-htpasswd-filename "$htpasswd"
+
+echo "Cleaning"
+rm "$htpasswd"

redshift.sh

@@ -1,8 +1,118 @@
 #!/bin/bash
 
-if [ "$#" -ne 1 ] ; then
+BRIGHTNESS_INCREMENT=.1
-	echo "Usage : $0 +/-" >&2
+R_INCREMENT=0
+G_INCREMENT=.1
+B_INCREMENT=.2
+
+xrandr_settings_of_display () {
+	if [ "$#" -ne 1 ] ; then
+		echo "Usage : xrandr_settings_of_display <display_name>" >&2
+		exit 1
+	fi
+
+	out="$(xrandr --verbose | sed -e "1,/^$1/d" | sed '/^ /,$d')"
+
+	if [ -z "$out" ] ; then
+		echo "ERROR, empty output for command: xrandr_settings_of_display $@" >&2
+		exit 1
+	fi
+
+	echo "$out"
+}
+
+
+brigthness_of_display () {
+	if [ "$#" -ne 1 ] ; then
+		echo "Usage : brigthness_of_display <display_name>" >&2
+		exit 1
+	fi
+
+	xrandr_settings_of_display "$1" | grep -Po 'Brightness: \K.*'
+}
+
+
+raw_gamma_of_display () {
+	if [ "$#" -ne 1 ] ; then
+		echo "Usage : raw_gamma_of_display <display_name>" >&2
+		exit 1
+	fi
+
+	xrandr_settings_of_display "$1" | grep -Po 'Gamma: \K.*' | tr ':' ' '
+}
+
+gamma_of_display () {
+	if [ "$#" -ne 1 ] ; then
+		echo "Usage : gamma_of_display <display_name>" >&2
+		exit 1
+	fi
+
+	read r g b <<< "$(raw_gamma_of_display "$1")"
+	echo "$r $g $b -> $(invert $r) $(invert $g) $(invert $b)" >&2
+	echo "$(invert $r) $(invert $g) $(invert $b)"
+}
+
+invert () {
+	if [ "$#" -ne 1 ] ; then
+		echo "Usage : invert <float_number>" >&2
+		exit 1
+	fi
+
+	echo "1/$1" | bc -l | grep -o '.*\...'
+}
+
+
+############### Args
+
+if [ "$#" -ne 2 ] ; then
+	echo "Usage : $0 <brightness|redness> +|-|=" >&2
 	exit 1
 fi
 
-xrandr --output "$(xrandr --listactivemonitors | grep -o '[[a-zA-Z0-9\-]\{2,\}$' -m 1)" --gamma 1:0.3:0.3 --brightness 1.3
+property="$1"
+action="$2"
+
+if [ ! "$action" = - ] && [ ! "$action" = + ] && [ ! "$action" = '=' ] ; then
+	echo "Bad action '$action'. Expected + - or =."
+	exit 1
+fi
+
+
+i=0
+xrandr --listactivemonitors | tail -n +2 | cut -d ' ' -f 6  | while read monitor ; do
+	args=''
+	if [ "$i" -eq 0 ] ; then
+		((i=i+1))
+		case "$property" in
+			brightness)
+				if [ "$action" = '=' ] ; then
+					args="--brightness 1"
+				else
+					b="$(brigthness_of_display "$monitor")"
+					b="$( echo "$b $action $BRIGHTNESS_INCREMENT" | bc -l )"
+					args="--brightness $b"
+				fi
+				;;
+			redness)
+				if [ "$action" = '=' ] ; then
+					args="--gamma 1:1:1"
+				else
+					read r g b <<< "$(gamma_of_display "$monitor")"
+
+					rnew="$( echo "$r $action $R_INCREMENT" | bc -l )"
+					gnew="$( echo "$g $action $G_INCREMENT" | bc -l )"
+					bnew="$( echo "$b $action $B_INCREMENT" | bc -l )"
+					args="--gamma $rnew:$gnew:$bnew"
+					#echo "from $r:$g:$b to $rnew:$gnew:$bnew"
+				fi
+				;;
+			*)
+				echo "Invalid property $property"
+				exit 1
+		esac
+	else
+		args="--same-as $monitor"
+	fi
+	xrandr --output "$monitor" $args
+	echo xrandr --output "$monitor" $args
+done