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var fs = require('fs');
var express = require('express');
var app = express();
var queue = require('queue-async');
var exec = require('child_process').exec;
var email = require('emailjs/email');
var config = require('./config.json');
var mailer = email.server.connect(config.email);
app.use(express.bodyParser());
// Receive webhook post
app.post('/hooks/jekyll', function(req, res){
var data = JSON.parse(req.body.payload);
var q = queue(1);
var cmd = '';
// Close connection
res.send(200);
// Process webhook data
data.repo = data.repository.name;
data.branch = data.ref.split('/')[2];
data.owner = data.repository.owner.name;
data.url = 'git@' + config.gh_server + ':' + data.owner + '/' + data.repo + '.git';
data.base = config.temp_directory + '/' + data.owner + '/' + data.repo + '/' + data.branch;
data.source = data.base + '/' + 'code';
data.dest = data.base + '/' + 'site';
data.baseurl = '/' + data.repo;
data.site = config.site_directory + '/' + data.repo;
// End early if not master branch
if (data.branch !== config.branch) {
console.log('Not ' + config.branch + ' branch.');
return;
}
// If repo doesn't exist locally, clone it
if (!fs.existsSync(data.source)) {
// Git clone repo from GitHub
cmd = 'git clone ' + data.url + ' ' + data.source;
q.defer(run, data, cmd);
}
// Git checkout appropriate branch, pull latest code
cmd = 'cd ' + data.source +
' && git checkout ' + data.branch +
' && git pull origin ' + data.branch +
' && cd -';
q.defer(run, data, cmd);
// Run jekyll
cmd = 'cd ' + data.source +
' && jekyll ' + data.source + ' ' + data.dest +
' --no-server --no-auto --base-url="' + data.baseurl + '"' +
' && cd -';
q.defer(run, data, cmd);
// Sync files (remove old files, copy new ones)
cmd = 'rm -rf ' + data.site + ' && mv ' + data.dest + ' ' + data.site;
q.defer(run, data, cmd);
// Done processing
q.await(function() {
// Log success message
console.log(
'Successfully rendered: ' + data.owner + '/' + data.repo +
'@' + data.after + ' to ' + data.site
);
// Send success email
if (config.email && data.pusher.email) {
var message = {
text: 'Successfully rendered: ' + data.owner + '/' + data.repo +
'@' + data.after + ' to ' + data.site,
from: config.email.user,
to: data.pusher.email,
subject: 'Successfully built ' + data.repo + ' site'
};
mailer.send(message, function(err, message) { console.log(err || message); });
}
});
});
// Start server
app.listen(8080);
console.log('Listening on port 8080');
function run(data, cmd, cb) {
console.log('Running: ' + cmd);
exec(cmd, function (error, stdout, stderr) {
console.log('stdout: ' + stdout);
console.log('stderr: ' + stderr);
if (error !== null) {
console.log('exec error: ' + error);
// Send error email
if (config.email && data.pusher.email) {
var message = {
text: 'exec error: ' + error,
from: config.email.user,
to: data.pusher.email,
subject: '!! Failed to build ' + data.repo + ' site'
};
mailer.send(message, function(err, message) { console.log(err || message); });
}
} else {
if (typeof cb === 'function') cb();
}
});
}
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