pitaya-launcher/js/util/system.js

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2015-08-27 22:52:30 +02:00
var fs = require('fs');
var cp = require('child_process');
var glob = require('glob');
var ini = require('ini');
var Cache = require('./cache');
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/**
* Load a JSON file
*
* @param filePath The path of the json file
* @return Promise
*/
exports.loadJSONFile = function(filePath) {
return new Promise(function(resolve, reject) {
fs.readFile(filePath, 'utf8', function(err, fileContent) {
if(err) return reject(err);
try {
var json = JSON.parse(fileContent);
return resolve(json);
} catch(err) {
return reject(err);
}
});
});
};
/**
* Load a INI file
*
* @param filePath The path of the json file
* @return Promise
*/
exports.loadINIFile = function(filePath) {
return new Promise(function(resolve, reject) {
fs.readFile(filePath, 'utf8', function(err, content) {
if(err) return reject(err);
try {
var decoded = ini.decode(content);
return resolve(decoded);
} catch(err) {
return reject(err);
}
});
});
};
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exports.runApp = function(execPath) {
return new Promise(function(resolve, reject) {
cp.exec(execPath, function(err) {
if(err) return reject(err);
return resolve();
});
});
};
var _searchCache = new Cache();
exports.findFiles = function(pattern, opts) {
return new Promise(function(resolve, reject) {
var cachedResult = _searchCache.get([pattern, opts]);
if( cachedResult !== undefined) {
return resolve(cachedResult);
}
glob(pattern, opts, function(err, files) {
if(err) return reject(err);
_searchCache.set([pattern, opts], files);
return resolve(files);
});
});
};
exports.exists = function(filePath) {
return new Promise(function(resolve) {
fs.exists(filePath, resolve);
});
};