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#!/usr/bin/env node
/**
* yaml2json cli program
*/
var YAML = require('../lib/Yaml.js');
var ArgumentParser = require('argparse').ArgumentParser;
var cli = new ArgumentParser({
prog: "yaml2json",
version: require('../package.json').version,
addHelp: true
});
cli.addArgument(
['-p', '--pretty'],
{
help: 'Output pretty (indented) JSON.',
action: 'storeTrue'
}
);
cli.addArgument(
['-i', '--indentation'],
{
action: 'store',
type: 'int',
help: 'Number of space characters used to indent code (use with --pretty, default: 2).',
}
);
cli.addArgument(
['-s', '--save'],
{
help: 'Save output inside JSON file(s) with the same name.',
action: 'storeTrue'
}
);
cli.addArgument(
['-r', '--recursive'],
{
help: 'If the input is a directory, also find YAML files in sub-directories recursively.',
action: 'storeTrue'
}
);
cli.addArgument(
['-w', '--watch'],
{
help: 'Watch for changes.',
action: 'storeTrue'
}
);
cli.addArgument(['input'], {
help: 'YAML file or directory containing YAML files or - to read YAML from stdin.'
});
try {
var options = cli.parseArgs();
var path = require('path');
var fs = require('fs');
var glob = require('glob');
var rootPath = process.cwd();
var parsePath = function(input) {
if (input == '-') return '-';
var output;
if (!(input != null)) {
return rootPath;
}
output = path.normalize(input);
if (output.length === 0) {
return rootPath;
}
if (output.charAt(0) !== '/') {
output = path.normalize(rootPath + '/./' + output);
}
if (output.length > 1 && output.charAt(output.length - 1) === '/') {
return output.substr(0, output.length - 1);
}
return output;
};
// Find files
var findFiles = function(input) {
if (input != '-' && input != null) {
var isDirectory = fs.statSync(input).isDirectory();
var files = [];
if (!isDirectory) {
files.push(input);
}
else {
if (options.recursive) {
files = files.concat(glob.sync(input+'/**/*.yml'));
files = files.concat(glob.sync(input+'/**/*.yaml'));
}
else {
files = files.concat(glob.sync(input+'/*.yml'));
files = files.concat(glob.sync(input+'/*.yaml'));
}
}
return files;
}
return null;
};
// Convert to JSON
var convertToJSON = function(input, pretty, save, spaces, str) {
var json;
if (spaces == null) spaces = 2;
if (str != null) {
if (pretty) {
json = JSON.stringify(YAML.parse(str), null, spaces);
}
else {
json = JSON.stringify(YAML.parse(str));
}
} else {
if (pretty) {
json = JSON.stringify(YAML.parseFile(input), null, spaces);
}
else {
json = JSON.stringify(YAML.parseFile(input));
}
}
if (!save || input == null) {
// Ouput result
process.stdout.write(json+"\n");
}
else {
var output;
if (input.substring(input.length-4) == '.yml') {
output = input.substr(0, input.length-4) + '.json';
}
else if (input.substring(input.length-5) == '.yaml') {
output = input.substr(0, input.length-5) + '.json';
}
else {
output = input + '.json';
}
// Write file
var file = fs.openSync(output, 'w+');
fs.writeSync(file, json);
fs.closeSync(file);
process.stdout.write("saved "+output+"\n");
}
};
var input = parsePath(options.input);
var mtimes = [];
var runCommand = function() {
try {
var files = findFiles(input);
if (files != null) {
var len = files.length;
for (var i = 0; i < len; i++) {
var file = files[i];
var stat = fs.statSync(file);
var time = stat.mtime.getTime();
if (!stat.isDirectory()) {
if (!mtimes[file] || mtimes[file] < time) {
mtimes[file] = time;
convertToJSON(file, options.pretty, options.save, options.indentation);
}
}
}
} else {
// Read from STDIN
var stdin = process.openStdin();
var data = "";
stdin.on('data', function(chunk) {
data += chunk;
});
stdin.on('end', function() {
convertToJSON(null, options.pretty, options.save, options.indentation, data);
});
}
} catch (e) {
process.stderr.write((e.message ? e.message : e)+"\n");
}
};
if (!options.watch) {
runCommand();
} else {
runCommand();
setInterval(runCommand, 1000);
}
} catch (e) {
process.stderr.write((e.message ? e.message : e)+"\n");
}