Find usage count of CouchDB views

find_view_references.sh

#!/bin/bash
# Basic script to find all references to CouchDB views in code.
#    1. Find all 'map.js' files
#    2. Based on some assumptions about the structure they are in 
#       generate the CouchDB view name.
#    3. Look for all references of that name in all ".py" files.
#
# Output saved to 'view_usage.csv'

OUTPUT=view_usage.csv

maps=`find . -name map.js`
for m in $maps
do
    IFS='/' read -a array <<< "$m"
    len=${#array[@]}
    if [ ${array[$len-4]} == "_design" ]; then
        view="${array[$len-5]}/${array[$len-2]}"
    else
        view="${array[$len-4]}/${array[$len-2]}"
    fi

    matches=$(find . -iname '*.py' | xargs grep "$view" -sl | tr '\n' ' ')
    IFS=' ' read -a matcharr <<< "$matches"
    echo -n "."
    echo "$view,${#matcharr[@]},$matches" >> $OUTPUT
    sort -t\, -k2 -n $OUTPUT -o $OUTPUT
done

echo "Output saved to $OUTPUT"