186 lines
5 KiB
JavaScript
186 lines
5 KiB
JavaScript
#!/usr/bin/env node
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/**
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* yaml2json cli program
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*/
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var YAML = require('../lib/Yaml.js');
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var ArgumentParser = require('argparse').ArgumentParser;
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var cli = new ArgumentParser({
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prog: "json2yaml",
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version: require('../package.json').version,
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addHelp: true
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});
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cli.addArgument(
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['-d', '--depth'],
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{
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action: 'store',
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type: 'int',
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help: 'Set minimum level of depth before generating inline YAML (default: 2).'
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}
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);
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cli.addArgument(
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['-i', '--indentation'],
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{
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action: 'store',
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type: 'int',
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help: 'Number of space characters used to indent code (default: 2).',
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}
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);
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cli.addArgument(
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['-s', '--save'],
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{
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help: 'Save output inside YML file(s) with the same name.',
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action: 'storeTrue'
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}
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);
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cli.addArgument(
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['-r', '--recursive'],
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{
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help: 'If the input is a directory, also find JSON files in sub-directories recursively.',
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action: 'storeTrue'
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}
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);
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cli.addArgument(
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['-w', '--watch'],
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{
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help: 'Watch for changes.',
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action: 'storeTrue'
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}
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);
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cli.addArgument(['input'], {
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help: 'JSON file or directory containing JSON files or - to read JSON from stdin.'
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});
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try {
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var options = cli.parseArgs();
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var path = require('path');
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var fs = require('fs');
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var glob = require('glob');
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var rootPath = process.cwd();
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var parsePath = function(input) {
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if (input == '-') return '-';
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var output;
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if (!(input != null)) {
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return rootPath;
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}
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output = path.normalize(input);
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if (output.length === 0) {
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return rootPath;
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}
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if (output.charAt(0) !== '/') {
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output = path.normalize(rootPath + '/./' + output);
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}
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if (output.length > 1 && output.charAt(output.length - 1) === '/') {
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return output.substr(0, output.length - 1);
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}
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return output;
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};
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// Find files
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var findFiles = function(input) {
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if (input != '-' && input != null) {
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var isDirectory = fs.statSync(input).isDirectory();
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var files = [];
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if (!isDirectory) {
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files.push(input);
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}
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else {
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if (options.recursive) {
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files = files.concat(glob.sync(input+'/**/*.json'));
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}
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else {
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files = files.concat(glob.sync(input+'/*.json'));
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}
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}
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return files;
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}
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return null;
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};
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// Convert to JSON
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var convertToYAML = function(input, inline, save, spaces, str) {
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var yaml;
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if (inline == null) inline = 2;
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if (spaces == null) spaces = 2;
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if (str == null) {
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str = ''+fs.readFileSync(input);
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}
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yaml = YAML.dump(JSON.parse(str), inline, spaces);
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if (!save || input == null) {
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// Ouput result
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process.stdout.write(yaml);
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}
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else {
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var output;
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if (input.substring(input.length-5) == '.json') {
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output = input.substr(0, input.length-5) + '.yaml';
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}
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else {
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output = input + '.yaml';
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}
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// Write file
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var file = fs.openSync(output, 'w+');
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fs.writeSync(file, yaml);
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fs.closeSync(file);
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process.stdout.write("saved "+output+"\n");
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}
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};
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var input = parsePath(options.input);
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var mtimes = [];
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var runCommand = function() {
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try {
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var files = findFiles(input);
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if (files != null) {
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var len = files.length;
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for (var i = 0; i < len; i++) {
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var file = files[i];
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var stat = fs.statSync(file);
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var time = stat.mtime.getTime();
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if (!stat.isDirectory()) {
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if (!mtimes[file] || mtimes[file] < time) {
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mtimes[file] = time;
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convertToYAML(file, options.depth, options.save, options.indentation);
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}
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}
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}
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} else {
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// Read from STDIN
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var stdin = process.openStdin();
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var data = "";
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stdin.on('data', function(chunk) {
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data += chunk;
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});
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stdin.on('end', function() {
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convertToYAML(null, options.depth, options.save, options.indentation, data);
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});
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}
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} catch (e) {
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process.stderr.write((e.message ? e.message : e)+"\n");
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}
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};
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if (!options.watch) {
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runCommand();
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} else {
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runCommand();
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setInterval(runCommand, 1000);
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}
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} catch (e) {
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process.stderr.write((e.message ? e.message : e)+"\n");
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}
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