Show a boxplot of lines of code per file on a logscale similar to a plot shown by Uncle Bob.

boxplot-lines-of-code.sh

#!/bin/bash
# boxplot-lines-of-code
#
# Written by Shane Celis

function usage() {
   echo "usage: boxplot-lines-of-code [-h] [-e extension] [-p file.png] [-n name] <directory>" >&2;
   echo "       -e choose extension of files (\"cs\" by default)" >&2;
   echo "       -p output to png file instead of terminal" >&2;
   echo "       -n set plot label (present working directory by default)" >&2;
   echo >&2;
   echo "Show a boxplot of lines of code per file on a logscale similar to" >&2;
   echo "a plot shown by Uncle Bob." >&2;
}

terminal="dumb";
output="";
name="$(pwd)";
extension="cs";
while getopts p:n:e:h opt; do
	case $opt in
      h) usage; exit 1;;
      p) output="set output \"$OPTARG\""; terminal="png";;
      n) name="$OPTARG";;
      e) extension="$OPTARG";;
	    *) echo "error: invalid option given." >&2; usage;;
	esac
done
shift $[ OPTIND - 1 ]

if [ $# -ne 1 ]; then
    usage;
    exit 2;
fi
dir="$1";

(cat << EOF
set title "Lines of Code Per File"
set style fill solid 0.5 border -1
set style boxplot outliers pointtype 7
set style data boxplot
set boxwidth  0.5
set pointsize 0.5

unset key
set logscale y 10
set border 2
set xtics ("$name" 1, "B" 2) scale 0.0
set xtics nomirror
set ytics nomirror
set ylabel "lines of code"
# set yrange [0:100]

set terminal $terminal
$output
#set output "fileCount.png"
#set terminal dumb

plot '-' using (1.0):1
EOF
find "$dir" -name "*.$extension" -print0 | xargs -0 -n 1 wc -l | awk '{ print $1 }') | gnuplot