<commit_before>#!/usr/bin/env node

const fs = require('fs')
const path = require('path')
const readline = require('readline')

const flat = require('./index')

if (process.stdin.isTTY) {
  const filepath = process.argv.slice(2)[0]
  if (!filepath) return usage()
  // Read from file
  const file = path.resolve(process.cwd(), filepath)
  if (!file) return usage()
  if (!fs.existsSync(file)) return usage()
  out(require(file))
} else {
  // Read from newline-delimited STDIN
  const lines = []
  readline.createInterface({
    input: process.stdin,
    output: process.stdout,
    terminal: false
  })
    .on('line', line => lines.push(line))
    .on('close', () => out(JSON.parse(lines.join('\n'))))
}

function out (data) {
  process.stdout.write(JSON.stringify(flat(data), null, 2))
}

function usage () {
  console.log(`
Usage:

flat foo.json
cat foo.json | flat
`)

  process.exit(1)
}
<commit_msg>Exit 1 on usage if specified a file.<commit_after>#!/usr/bin/env node

const fs = require('fs')
const path = require('path')
const readline = require('readline')

const flat = require('./index')

if (process.stdin.isTTY) {
  const filepath = process.argv.slice(2)[0]
  if (!filepath) return usage()
  // Read from file
  const file = path.resolve(process.cwd(), filepath)
  if (!file) return usage(1)
  if (!fs.existsSync(file)) return usage(1)
  out(require(file))
} else {
  // Read from newline-delimited STDIN
  const lines = []
  readline.createInterface({
    input: process.stdin,
    output: process.stdout,
    terminal: false
  })
    .on('line', line => lines.push(line))
    .on('close', () => out(JSON.parse(lines.join('\n'))))
}

function out (data) {
  process.stdout.write(JSON.stringify(flat(data), null, 2))
}

function usage (code) {
  console.log(`
Usage:

flat foo.json
cat foo.json | flat
`)

  process.exit(code || 0)
}

{'fraction_non_alphanumeric': 0.17252568956192538, 'fraction_numerical': 0.005949161709031909, 'mean_word_length': 3.8051948051948052, 'pattern_counts': {'":': 0, '<': 3, '<?xml version=': 0, '>': 7, 'https://': 0, 'lorem ipsum': 0, 'www.': 0, 'xml': 0}, 'pii_count': 0, 'substrings_counts': 0, 'word_list_counts': {'cursed_substrings.json': 0, 'profanity_word_list.json': 0, 'sexual_word_list.json': 0, 'zh_pornsignals.json': 0}}
{'dir': 'git-commits-cleaned', 'id': '990218', 'n_tokens_mistral': 650, 'n_tokens_neox': 641, 'n_words': 157}