Manual Node Dependency checker script

depChecker.sh

#!/bin/bash
DIRNAME=${1:-.}
cd $DIRNAME

source ~/.bashrc

FILES=$(mktemp)
PACKAGES=$(mktemp)

find . \
    -path ./node_modules -prune -or \
    -path ./dist -prune -or \
    \( -name "*.tsx" -or -name "*.jsx" -or -name "*.ts" -or -name "*.js" -or -name "*.json" \) -print > $FILES

function check {
    cat package.json \
        | jq "{} + .$1 | keys" \
        | sed -n 's/.*"\(.*\)".*/\1/p' > $PACKAGES

    echo "--------------------------"
    echo "Checking $1..."
    while read PACKAGE
    do
        # echo "Checking ${PACKAGE}..."
        RES=$(cat $FILES | xargs -I {} egrep -i "(import|require|loader|plugins|${PACKAGE}).*['\"](${PACKAGE}|.?\d+)[\"']" '{}' | wc -l)

        if [ $RES = 0 ]
        then
            echo -e "UNUSED\t\t $PACKAGE"
        else
            echo -e "USED ($RES)\t $PACKAGE"
        fi
    done < $PACKAGES
}

check "dependencies"
check "devDependencies"
check "peerDependencies"