Reports file statistics for the specified directory tree.

readme.md

Reports file statistics for the specified directory tree, including:

• All source files (split by JavaScript and TypeScript)
• All test files (split by JavaScript and TypeScript)

Quick Start

npx {url-of-this-gist} {root-path-to-files to analyze}

NOTE Make sure that you don't include non-source directories (like node-modules). Otherwise, the script will not finish anytime soon (and will waste a lot of time!)

index.js

#!/usr/bin/env node
const glob = require('glob')
const { bold, cyan, gray, italic, magenta } = require('kleur')

const cwd = process.argv[2] || process.cwd()

const toPercentage = (numerator, denominator) => denominator > 0 ? ((numerator / denominator) * 100) : 0

const stats = Object.entries({
  ALL: '**/*.{js,tsx}',
  JS: '**/*.js',
  TS: '**/*.tsx',
  TEST: '**/*.test.{js,tsx}',
  TEST_JS: '**/*.test.js',
  TEST_TS: '**/*.test.tsx',
}).reduce((result, [query, pattern]) => {
  // eslint-disable-next-line immutable/no-mutation
  result[query] = glob.sync(pattern, { cwd }).length
  return result
}, {})

const FORMULAE = [
  { name: 'All Files', valueFn: ({ ALL }) => ALL, percentFn: () => 100 },
  {
    name: '- All Source Files',
    valueFn: ({ ALL, TEST }) => ALL - TEST,
    percentFn: (value, { ALL }) => toPercentage(value, ALL),
  },
  {
    name: '  - JavaScript',
    valueFn: ({ JS, TEST_JS }) => JS - TEST_JS,
    percentFn: (value, { ALL, TEST }) => toPercentage(value, ALL - TEST),
  },
  {
    name: '  - TypeScript',
    valueFn: ({ TS, TEST_TS }) => TS - TEST_TS,
    percentFn: (value, { ALL, TEST }) => toPercentage(value, ALL - TEST),
  },
  {
    name: '- All Test Files',
    valueFn: ({ TEST }) => TEST,
    percentFn: (value, { ALL }) => toPercentage(value, ALL),
  },
  {
    name: '  - JavaScript',
    valueFn: ({ TEST_JS }) => TEST_JS,
    percentFn: (value, { TEST }) => toPercentage(value, TEST),
  },
  {
    name: '  - TypeScript',
    valueFn: ({ TEST_TS }) => TEST_TS,
    percentFn: (value, { TEST }) => toPercentage(value, TEST),
  },
]
console.log(bold('File Statistics:'))
FORMULAE.forEach(({ name, valueFn, percentFn }) => {
  const value = valueFn(stats)
  const percent = percentFn(value, stats)
  console.log(
    [
      italic(cyan(name.padEnd(25, ' '))),
      magenta(String(value).padStart(10, ' ')),
      magenta((percent.toFixed(2) + '%').padStart(10, ' ')),
    ].join(gray(' | '))
  )
})

package.json

{
  "name": "file-stats", 
  "version": "0.0.0", 
  "bin": "./index.js",
  "dependencies": {
    "glob": "^7.1.4",
    "kleur": "^3.0.3"
  }
}