List component tag occurences in your project (eg to optimize bootstrap-vue components)

b.sh

#!/usr/bin/env bash

extPattern="*.vue"
tagPattern="<b-[a-zA-Z\\\-]+"

srcFiles=($(find . -iname "$extPattern" ! -path '*node_modules*' ! -path '*.nuxt*' | sort))

components=()
for file in ${srcFiles[@]}; do
  components+=($(cat "$file" | awk '{split($0, a, "'$tagPattern'", sep); for (k in sep) print substr(sep[k], 2) }' | sort -u));
done

# create unique array
components=($(echo ${components[@]} | tr ' ' '\n' | sort -u | tr '\n' ' '))

for c in ${components[@]}; do
  files=()
  for file in ${srcFiles[@]}; do
    if [ $(grep -c "<$c" "$file") -gt 0 ]; then
      files+=("$file")
    fi
  done

  echo $c": "${#files[@]}

  if [ "$1" == "-v" ]; then
    echo "${files[@]}"
  fi
done