Find private functions that have never been used in inspector front-end

unused.sh

#!/bin/bash
set -e

if (( $# < 1 )); then
    echo "Specify filename to analyze"
    exit 1
fi

fileName=$1

for i in $(grep -o '_[a-zA-Z0-9_]*:\s\+fun' $fileName | cut -d':' -f1); do
    # count number of occurences in file
    num=$(grep $i $fileName | wc -l)
    if (( $num == 1 )); then
        # if declaration only found in file, then try to search whole repo
        num=$(git grep $i | wc -l)
        if (( $num == 1 )); then
            if [[ -z $shownFileName ]]; then
                echo "Processing $fileName"
                shownFileName="yes"
            fi
            echo "   WARN: $i is only one time used (in declaration)"
        fi
    fi
done