1 files changed, 116 insertions, 0 deletions
diff --git a/app.js b/app.js
new file mode 100644
index 0000000..f9a7f60
--- /dev/null
+++ b/app.js
@@ -0,0 +1,116 @@
+var _       = require('underscore');
+var fs      = require('fs');
+var express = require('express');
+var app     = express();
+var queue   = require('queue-async');
+var exec    = require('child_process').exec,
+    child,
+    cmd;
+var email   = require('emailjs/email');
+var config  = require('./config.json');
+var mailer  = email.server.connect(config.email);
+var data;
+
+app.use(express.bodyParser());
+
+// Receive webhook post
+app.post('/hooks/jekyll', function(req, res){
+    var q = queue(1);
+    data = JSON.parse(req.body.payload);
+
+    // 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, 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, cmd);
+
+    // Run jekyll
+    cmd = 'cd ' + data.source +
+          ' && jekyll ' + data.source + ' ' + data.dest +
+          ' --no-server --no-auto --base-url="' + data.baseurl + '"' +
+          ' && cd -';
+    q.defer(run, cmd);
+
+    // Sync files (remove old files, copy new ones)
+    cmd = 'rm -rf ' + data.site + ' && mv ' + data.dest + ' ' + data.site;
+    q.defer(run, 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(cmd, cb) {
+    console.log('Running: ' + cmd);
+    child = 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();
+        }
+    });
+}