Add i3blocks-contrib stuff

Stuff pulled from [i3blocks-contrib](https://github.com/vivien/i3blocks-contrib)
and Luke Smith's [dotfiles](https://github.com/LukeSmithxyz/voidrice/tree/master/.scripts/statusbar)

the contents may have been modified to work on my system

i3/i3blocks.conf

@@ -29,21 +29,37 @@ command=~/bin/i3blocks/$BLOCK_NAME
 separator_block_width=15
 markup=pango
 
-[disk]
+[gpu-load]
-interval=60
+interval=15
-command=~/bin/i3blocks/disk /
+label=⎚
 
-[disk]
+[load_average]
-interval=60
+interval=15
-command=~/bin/i3blocks/disk /home 🏠
+label=⨏
+
+[cpu_usage]
+interval=persist
+label=💻
+
+[cpu]
+interval=15
+label=🌡
 
 [memory]
 interval=30
 label=🧠
 
-[cpu]
+[bandwidth]
-interval=15
+interval=persist
-label=💻
+#label=
+
+#[disk]
+#interval=60
+#command=~/bin/i3blocks/disk /
+
+#[disk]
+#interval=60
+#command=~/bin/i3blocks/disk /home 🏠
 
 [clock]
 label=📅

i3/i3blocks/bandwidth

@@ -0,0 +1,104 @@
+#!/usr/bin/env bash
+#
+# Copyright (C) 2015 James Murphy
+# Licensed under the terms of the GNU GPL v2 only.
+#
+# i3blocks blocklet script to monitor bandwidth usage
+
+iface="${BLOCK_INSTANCE}"
+iface="${IFACE:-$iface}"
+dt="${DT:-3}"
+unit="${UNIT:-Mb}"
+LABEL="${LABEL:- }" # down arrow up arrow
+printf_command="${PRINTF_COMMAND:-"printf \"${LABEL}%-5.1f/%5.1f %s/s\\n\", rx, wx, unit;"}"
+
+function default_interface {
+    ip route | awk '/^default via/ {print $5; exit}'
+}
+
+function check_proc_net_dev {
+    if [ ! -f "/proc/net/dev" ]; then
+        echo "/proc/net/dev not found"
+        exit 1
+    fi
+}
+
+function list_interfaces {
+    check_proc_net_dev
+    echo "Interfaces in /proc/net/dev:"
+    grep -o "^[^:]\\+:" /proc/net/dev | tr -d " :"
+}
+
+while getopts i:t:u:p:lh opt; do
+    case "$opt" in
+        i) iface="$OPTARG" ;;
+        t) dt="$OPTARG" ;;
+        u) unit="$OPTARG" ;;
+        p) printf_command="$OPTARG" ;;
+        l) list_interfaces && exit 0 ;;
+        h) printf \
+"Usage: bandwidth3 [-i interface] [-t time] [-u unit] [-p printf_command] [-l] [-h]
+Options:
+-i\tNetwork interface to measure. Default determined using \`ip route\`.
+-t\tTime interval in seconds between measurements. Default: 3
+-u\tUnits to measure bytes in. Default: Mb
+\tAllowed units: Kb, KB, Mb, MB, Gb, GB, Tb, TB
+\tUnits may have optional it/its/yte/ytes on the end, e.g. Mbits, KByte
+-p\tAwk command to be called after a measurement is made. 
+\tDefault: printf \"<span font='FontAwesome'>  </span>%%-5.1f/%%5.1f %%s/s\\\\n\", rx, wx, unit;
+\tExposed variables: rx, wx, tx, unit, iface
+-l\tList available interfaces in /proc/net/dev
+-h\tShow this help text
+" && exit 0;;
+    esac
+done
+
+check_proc_net_dev
+
+iface="${iface:-$(default_interface)}"
+while [ -z "$iface" ]; do
+    echo No default interface
+    sleep "$dt"
+    iface=$(default_interface)
+done
+
+case "$unit" in
+    Kb|Kbit|Kbits)   bytes_per_unit=$((1024 / 8));;
+    KB|KByte|KBytes) bytes_per_unit=$((1024));;
+    Mb|Mbit|Mbits)   bytes_per_unit=$((1024 * 1024 / 8));;
+    MB|MByte|MBytes) bytes_per_unit=$((1024 * 1024));;
+    Gb|Gbit|Gbits)   bytes_per_unit=$((1024 * 1024 * 1024 / 8));;
+    GB|GByte|GBytes) bytes_per_unit=$((1024 * 1024 * 1024));;
+    Tb|Tbit|Tbits)   bytes_per_unit=$((1024 * 1024 * 1024 * 1024 / 8));;
+    TB|TByte|TBytes) bytes_per_unit=$((1024 * 1024 * 1024 * 1024));;
+    *) echo Bad unit "$unit" && exit 1;;
+esac
+
+scalar=$((bytes_per_unit * dt))
+init_line=$(cat /proc/net/dev | grep "^[ ]*$iface:")
+if [ -z "$init_line" ]; then
+    echo Interface not found in /proc/net/dev: "$iface"
+    exit 1
+fi
+
+init_received=$(awk '{print $2}' <<< $init_line)
+init_sent=$(awk '{print $10}' <<< $init_line)
+
+(while true; do cat /proc/net/dev; sleep "$dt"; done) |\
+    stdbuf -oL grep "^[ ]*$iface:" |\
+    awk -v scalar="$scalar" -v unit="$unit" -v iface="$iface" '
+BEGIN{old_received='"$init_received"';old_sent='"$init_sent"'}
+{
+    received=$2
+    sent=$10
+    rx=(received-old_received)/scalar;
+    wx=(sent-old_sent)/scalar;
+    tx=rx+wr;
+    old_received=received;
+    old_sent=sent;
+    if(rx >= 0 && wx >= 0){
+        '"$printf_command"';
+        fflush(stdout);
+    }
+}
+'

i3/i3blocks/gpu-load

@@ -0,0 +1,67 @@
+#! /usr/bin/perl
+
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+use strict;
+use warnings;
+use utf8;
+use Getopt::Long;
+
+# default values
+my $t_warn = $ENV{T_WARN} || 70;
+my $t_crit = $ENV{T_CRIT} || 90;
+my $gpu_usage = -1;
+my $gpu_mem = -1;
+my $gpu_video = -1;
+my $gpu_pcie = -1;
+
+sub help {
+    print "Usage: gpu-load [-w <warning>] [-c <critical>]\n";
+    print "-w <percent>: warning threshold to become amber\n";
+    print "-c <percent>: critical threshold to become red\n";
+    exit 0;
+}
+
+GetOptions("help|h" => \&help,
+           "w=i"    => \$t_warn,
+           "c=i"    => \$t_crit);
+
+# Get GPU usage from nvidia-settings
+open (NVS, 'nvidia-settings -q GPUUtilization -t |') or die;
+while (<NVS>) {
+    if (/^[a-zA-Z]*=(\d+), [a-zA-Z]*=(\d+), [a-zA-Z]*=(\d+), [a-zA-Z]*=(\d+)$/) {
+        $gpu_usage = $1;
+	$gpu_mem = $2;
+	$gpu_video = $3;
+	$gpu_pcie = $4;
+        last;
+    }
+}
+close(NVS);
+
+$gpu_usage eq -1 and die 'Can\'t find GPU information';
+
+# Print full_text, short_text
+printf "%.0f%% %.0f%% %.0f%% %.0f%%\n", $gpu_usage, $gpu_mem, $gpu_video, $gpu_pcie;
+printf "%.0f%%\n", $gpu_usage;
+
+# Print color, if needed
+if ($gpu_usage >= $t_crit || $gpu_mem >= $t_crit || $gpu_video >= $t_crit || $gpu_pcie >= $t_crit) {
+    print "#FF0000\n";
+    exit 33;
+} elsif ($gpu_usage >= $t_warn || $gpu_mem >= $t_warn || $gpu_video >= $t_warn || $gpu_pcie >= $t_warn) {
+    print "#FFBF00\n";
+}
+
+exit 0;

i3/i3blocks/load_average

@@ -0,0 +1,34 @@
+#!/bin/sh
+# Copyright (C) 2014 Julien Bonjean <julien@bonjean.info>
+
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+load="$(cut -d ' ' -f1 /proc/loadavg)"
+cpus="$(nproc)"
+
+# full text
+echo "$load"
+
+# short text
+echo "$load"
+
+# color if load is too high
+awk -v cpus=$cpus -v cpuload=$load '
+    BEGIN {
+        if (cpus <= cpuload) {
+            print "#FF0000";
+            exit 33;
+        }
+    }
+'