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Copy pathconfig-loader.js
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88 lines (72 loc) · 3.32 KB
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var fs = require('fs'),
url = require('url'),
when = require('when'),
errors = require('./server/errorHandling');
function writeConfigFile() {
var written = when.defer();
/* Check for config file and copy from config.example.js
if one doesn't exist. After that, start the server. */
fs.exists('config.example.js', function checkTemplate(templateExists) {
var read,
write;
if (!templateExists) {
return errors.logError(new Error('Could not locate a configuration file.'), process.cwd(), 'Please check your deployment for config.js or config.example.js.');
}
// Copy config.example.js => config.js
read = fs.createReadStream('config.example.js');
read.on('error', function (err) {
return errors.logError(new Error('Could not open config.example.js for read.'), process.cwd(), 'Please check your deployment for config.js or config.example.js.');
});
read.on('end', written.resolve);
write = fs.createWriteStream('config.js');
write.on('error', function (err) {
return errors.logError(new Error('Could not open config.js for write.'), process.cwd(), 'Please check your deployment for config.js or config.example.js.');
});
read.pipe(write);
});
return written.promise;
}
function validateConfigEnvironment() {
var envVal = process.env.NODE_ENV || 'undefined',
config,
parsedUrl;
try {
config = require('../config')[envVal];
} catch (ignore) {
}
// Check if we don't even have a config
if (!config) {
errors.logError(new Error('Cannot find the configuration for the current NODE_ENV'), "NODE_ENV=" + envVal, 'Ensure your config.js has a section for the current NODE_ENV value');
return when.reject();
}
// Check that our url is valid
parsedUrl = url.parse(config.url || 'invalid');
if (!parsedUrl.protocol || !parsedUrl.host) {
errors.logError(new Error('Your site url in config.js is invalid.'), config.url, 'Please make sure this is a valid url before restarting');
return when.reject();
}
// Check that we have database values
if (!config.database) {
errors.logError(new Error('Your database configuration in config.js is invalid.'), JSON.stringify(config.database), 'Please make sure this is a valid Bookshelf database configuration');
return when.reject();
}
// Check for valid server host and port values
if (!config.server || !config.server.host || !config.server.port) {
errors.logError(new Error('Your server values (host and port) in config.js are invalid.'), JSON.stringify(config.server), 'Please provide them before restarting.');
return when.reject();
}
return when.resolve();
}
exports.loadConfig = function () {
var loaded = when.defer();
/* Check for config file and copy from config.example.js
if one doesn't exist. After that, start the server. */
fs.exists('config.js', function checkConfig(configExists) {
if (configExists) {
validateConfigEnvironment().then(loaded.resolve).otherwise(loaded.reject);
} else {
writeConfigFile().then(validateConfigEnvironment).then(loaded.resolve).otherwise(loaded.reject);
}
});
return loaded.promise;
};