Git File Contention - Simple bash script to list the $n files with the most commits in a git repo

git-contention

#!/bin/bash

# Source of most of this code : http://stackoverflow.com/questions/5669621/git-find-out-which-files-have-had-the-most-commits
if [[ $# -ne 1 ]]; then
    
    echo "
    Usage : Please enter a single number argument to see this number of the highest contention ( most commited )
     files in the current git repository.
	"
    exit 4
fi


re='^[0-9]+$'
counter=$1 

if ! [[ $counter =~ $re && $counter -gt 0 ]] ; then
	exit 5
fi

git rev-list --objects --all | awk '$2' | sort -k2 | uniq -cf1 | sort -rn |
    while read frequency sample path  && [ "$counter" -gt 0 ]    
    do       
       [ "blob" == "$(git cat-file -t $sample)" ] && echo -e "$frequency\t$path" && ((counter--)) ;
    done