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- #!/usr/bin/env node
- 'use strict';
- // stdlib
- var fs = require('fs');
- var util = require('util');
- // 3rd-party
- var ArgumentParser = require('argparse').ArgumentParser;
- // internal
- var yaml = require('..');
- ////////////////////////////////////////////////////////////////////////////////
- var cli = new ArgumentParser({
- prog: 'js-yaml',
- version: require('../package.json').version,
- addHelp: true
- });
- cli.addArgument(['-c', '--compact'], {
- help: 'Display errors in compact mode',
- action: 'storeTrue'
- });
- cli.addArgument(['-j', '--to-json'], {
- help: 'Output a non-funky boring JSON',
- dest: 'json',
- action: 'storeTrue'
- });
- cli.addArgument(['-t', '--trace'], {
- help: 'Show stack trace on error',
- action: 'storeTrue'
- });
- cli.addArgument(['file'], {
- help: 'File to read'
- });
- ////////////////////////////////////////////////////////////////////////////////
- var options = cli.parseArgs();
- ////////////////////////////////////////////////////////////////////////////////
- fs.readFile(options.file, 'utf8', function (error, input) {
- var output, isYaml;
- if (error) {
- if ('ENOENT' === error.code) {
- console.error('File not found: ' + options.file);
- process.exit(2);
- }
- console.error(
- options.trace && error.stack ||
- error.message ||
- String(error));
- process.exit(1);
- }
- try {
- output = JSON.parse(input);
- isYaml = false;
- } catch (error) {
- if (error instanceof SyntaxError) {
- try {
- output = [];
- yaml.loadAll(input, function (doc) { output.push(doc); }, {});
- isYaml = true;
- if (0 === output.length) {
- output = null;
- } else if (1 === output.length) {
- output = output[0];
- }
- } catch (error) {
- if (options.trace && error.stack) {
- console.error(error.stack);
- } else {
- console.error(error.toString(options.compact));
- }
- process.exit(1);
- }
- } else {
- console.error(
- options.trace && error.stack ||
- error.message ||
- String(error));
- process.exit(1);
- }
- }
- if (isYaml) {
- if (options.json) {
- console.log(JSON.stringify(output, null, ' '));
- } else {
- console.log("\n" + util.inspect(output, false, 10, true) + "\n");
- }
- } else {
- console.log(yaml.dump(output));
- }
- process.exit(0);
- });
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