i18n-stex/bin/cli.ts

i18n STrings EXtractor

import { readFileSync, writeFileSync } from 'fs';
import * as ts from "typescript";
import { extract, getDictItems } from '../src';
import * as glob from 'glob';
import * as cli from 'cli';

const options = cli.parse({
  // -s, --src GLOB   A file or glob to process
  src: ['s', 'A source file or glob to process', 'string', '*.ts'],
  output: ['o', 'Output JSON file', 'string', '__stdout'],
  help: ['h', 'Show some help', 'bool', false]
});

if (options.help) {
  console.log(`i18n STring EXtractor

Options:
   -h / --help          Show this help
   -s / --src '*.ts'    Define which files should be processed. 
                        Accepts quoted glob string.
   -o / --output FILE   Define output JSON file name. If a file 
                        already exists, it's contents will be
                        overwritten.`);
  process.exit(0);
}

console.warn('Running extraction in glob: ', options.src);

glob(options.src, (e: Error, matches: string[]) => {
  if (e) {
    console.error(e);
    return;
  }

  matches.forEach((fileName) => {
    extract(ts.createSourceFile(
      fileName,
      readFileSync(fileName).toString(),
      ts.ScriptTarget.ES5,
      /*setParentNodes */ true
    ));
  });

  if (options.output === '__stdout') {
    console.log(JSON.stringify(getDictItems(), undefined, '  '));
  } else {
    writeFileSync(options.output, JSON.stringify(getDictItems(), undefined, '  '));
  }
});