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#!/usr/bin/env deno --allow-run// Copyright 2019 Yoshiya Hinosawa. All rights reserved. MIT license.
import minimatch from "https://raw.githubusercontent.com/chrisdothtml/deno-minimatch/10f0d68f23f044e71b186112271633eb2c324835/index.js"import { exit, args, readFile } from "deno"import { parse } from "https://deno.land/x/flags@v0.2.6/mod.ts"import { color } from "https://deno.land/x/colors@v0.2.6/mod.ts"
import { xrun, decode } from "./util.ts"
const readConfig = async (config = '.licenserc.json') => {  let data  let configObj  try {    data = await readFile(config)  } catch (e) {    console.log(`Error: config file "${config}" not found.`)    exit(1)  }
  try {    configObj = JSON.parse(decode(data))  } catch (e) {    console.log(`Error: Failed to parse "${config}" as JSON.`)    console.log(e)    exit(1)  }
  const ignore = configObj.ignore || []  delete configObj.ignore
  return { ignore, config: Object.entries(configObj) }}
const checkFile = async (filename: string, copyright: string, quiet: boolean) => {  if (decode(await readFile(filename)).includes(copyright)) {    if (!quiet) {      console.log(filename, '...', color.green('ok'))    }    return true  }
  console.log(filename, color.red('missing copyright!'))  return false}
const main = async (opts) => {  if (opts.help) {    console.log(`Usage: license_checker.ts [options]
Options:  -h, --help               Show this help message and exit.  -v, --version            Show the version number and exit.  -q, --quiet              Don't print messages except errors.  -c, --config <filename>  Specify config filename. Default is '.licenserc.json'.`)    exit(0)  }  if (opts.version) {    console.log('1.2.0')    exit(0)  }
  const { config, ignore } = await readConfig()  const filenames = (await xrun(['git', 'ls-files'])).trim().split('\n')
  const tasks = []
  for (const filename of filenames) {    for (const [glob, copyright] of config) {      if (ignore.some(pattern => filename.includes(pattern))) {        continue      }      if (minimatch(filename, glob)) {        tasks.push(checkFile(filename, String(copyright), opts.quiet))      }    }  }
  const results = await Promise.all(tasks)
  if (results.includes(false)) {    exit(1)    return  }  exit(0)}
main(parse(args.slice(1), {  boolean: [    'quiet',    'help',    'version',  ],  alias: {    q: 'quiet',    h: 'help',    v: 'version'  }}))