Blame view
node_modules/js-yaml/bin/js-yaml.js
2.66 KB
f7563de62
first commit
|
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 |
#!/usr/bin/env node
'use strict';
/*eslint-disable no-console*/
// stdlib
var fs = require('fs');
// 3rd-party
var argparse = require('argparse');
// internal
var yaml = require('..');
////////////////////////////////////////////////////////////////////////////////
var cli = new argparse.ArgumentParser({
prog: 'js-yaml',
version: require('../package.json').version,
addHelp: true
});
cli.addArgument([ '-c', '--compact' ], {
help: 'Display errors in compact mode',
action: 'storeTrue'
});
// deprecated (not needed after we removed output colors)
// option suppressed, but not completely removed for compatibility
cli.addArgument([ '-j', '--to-json' ], {
help: argparse.Const.SUPPRESS,
dest: 'json',
action: 'storeTrue'
});
cli.addArgument([ '-t', '--trace' ], {
help: 'Show stack trace on error',
action: 'storeTrue'
});
cli.addArgument([ 'file' ], {
help: 'File to read, utf-8 encoded without BOM',
nargs: '?',
defaultValue: '-'
});
////////////////////////////////////////////////////////////////////////////////
var options = cli.parseArgs();
////////////////////////////////////////////////////////////////////////////////
function readFile(filename, encoding, callback) {
if (options.file === '-') {
// read from stdin
var chunks = [];
process.stdin.on('data', function (chunk) {
chunks.push(chunk);
});
process.stdin.on('end', function () {
return callback(null, Buffer.concat(chunks).toString(encoding));
});
} else {
fs.readFile(filename, encoding, callback);
}
}
readFile(options.file, 'utf8', function (error, input) {
var output, isYaml;
if (error) {
if (error.code === 'ENOENT') {
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 (err) {
if (err instanceof SyntaxError) {
try {
output = [];
yaml.loadAll(input, function (doc) { output.push(doc); }, {});
isYaml = true;
if (output.length === 0) output = null;
else if (output.length === 1) output = output[0];
} catch (e) {
if (options.trace && err.stack) console.error(e.stack);
else console.error(e.toString(options.compact));
process.exit(1);
}
} else {
console.error(
options.trace && err.stack ||
err.message ||
String(err));
process.exit(1);
}
}
if (isYaml) console.log(JSON.stringify(output, null, ' '));
else console.log(yaml.dump(output));
});
|