added redshift script module polybar

roles/polybar/files/modules/redshift

@@ -1,6 +1,6 @@
 [module/redshift]
 type = custom/script
-click-left = bash -x ~/.config/polybar/redshift.sh toggle
+click-left = bash -x ~/.config/polybar/modules/redshift.sh toggle
 exec = cat ~/.config/polybar/.redshift
 label = "%output:0:10%"
 interval = 1

roles/polybar/files/modules/redshift.sh

@@ -0,0 +1,55 @@
+#!/bin/bash
+
+### VARS ###
+warm_color="5000K"
+normal_color="6500K"
+
+### USAGE ###
+if [[ -z "$1" ]]
+then 
+    echo "Usage: redshift.sh [on|off|toggle]"
+    exit
+fi
+
+### CONF ###
+conf_file="$(dirname $(readlink -f "$0"))/.redshift"
+if [[ ! -f "$conf_file" ]]
+then
+    echo "$normal_color" > "$conf_file"
+fi
+current_color=$(tail -n1 "$conf_file")
+
+### FUNCTIONS ###
+trigger () {
+    if [[ "$1" == "on" ]]
+    then
+        /usr/bin/redshift -PO "$warm_color" 2>&1 > /dev/null
+        echo "$warm_color" | tee "$conf_file"
+    elif [[ "$1" == "off" ]]
+    then
+        /usr/bin/redshift -PO "$normal_color" 2>&1 > /dev/null
+        echo "$normal_color" | tee "$conf_file"
+    fi
+}
+
+### ARGS EXEC ###
+if [[ "$1" == "on" ]]
+    then trigger $1
+fi
+
+if [[ "$1" == "off" ]]
+    then trigger $1
+fi
+
+if [[ "$1" == "toggle" ]]
+then
+    if [[ "$current_color" == "$warm_color" ]]
+    then
+        trigger off
+    elif [[ "$current_color" == "$normal_color" ]]
+    then
+        trigger on
+    else
+        trigger off
+    fi
+fi