3 files changed, 125 insertions, 1 deletions
diff --git a/lib/utils/server.js b/lib/utils/server.js
new file mode 100644
index 0000000..2b97fe8
--- /dev/null
+++ b/lib/utils/server.js
@@ -0,0 +1,96 @@
+var Q = require('q');
+var _ = require('lodash');
+
+var events = require('events');
+var http = require('http');
+var send = require('send');
+var util = require('util');
+var url = require('url');
+
+var Server = function() {
+    this.running = null;
+    this.dir = null;
+    this.port = 0;
+    this.sockets = [];
+};
+util.inherits(Server, events.EventEmitter);
+
+// Return true if the server is running
+Server.prototype.isRunning = function() {
+    return this.running != null;
+};
+
+// Stop the server
+Server.prototype.stop = function() {
+    var that = this;
+    if (!this.isRunning()) return Q();
+
+    var d = Q.defer();
+    this.running.close(function(err) {
+        that.running = null;
+        that.emit("state", false);
+
+        if (err) d.reject(err);
+        else d.resolve();
+    });
+
+    for (var i = 0; i < this.sockets.length; i++) {
+        this.sockets[i].destroy();
+    }
+
+    return d.promise;
+};
+
+Server.prototype.start = function(dir, port) {
+    var that = this, pre = Q();
+    port = port || 8004;
+
+    if (that.isRunning()) pre = this.stop();
+    return pre
+    .then(function() {
+        var d = Q.defer();
+
+        that.running = http.createServer(function(req, res){
+            // Render error
+            function error(err) {
+                res.statusCode = err.status || 500;
+                res.end(err.message);
+            }
+
+            // Redirect to directory's index.html
+            function redirect() {
+                res.statusCode = 301;
+                res.setHeader('Location', req.url + '/');
+                res.end('Redirecting to ' + req.url + '/');
+            }
+
+            // Send file
+            send(req, url.parse(req.url).pathname)
+            .root(dir)
+            .on('error', error)
+            .on('directory', redirect)
+            .pipe(res);
+        });
+
+        that.running.on('connection', function (socket) {
+            that.sockets.push(socket);
+            socket.setTimeout(4000);
+            socket.on('close', function () {
+                that.sockets.splice(that.sockets.indexOf(socket), 1);
+            });
+        });
+
+        that.running.listen(port, function(err) {
+            if (err) return d.reject(err);
+
+            that.port = port;
+            that.dir = dir;
+            that.emit("state", true);
+            d.resolve();
+        });
+
+        return d.promise;
+    });
+}
+
+module.exports = Server;
diff --git a/lib/utils/string.js b/lib/utils/string.js
index 54c4c66..72a9ca0 100644
--- a/lib/utils/string.js
+++ b/lib/utils/string.js
@@ -22,5 +22,6 @@ function optionsToShellArgs(options) {
 
 module.exports = {
     escapeShellArg: escapeShellArg,
-    optionsToShellArgs: optionsToShellArgs
+    optionsToShellArgs: optionsToShellArgs,
+    toLowerCase: String.prototype.toLowerCase.call.bind(String.prototype.toLowerCase)
 };
diff --git a/lib/utils/watch.js b/lib/utils/watch.js
new file mode 100644
index 0000000..715179d
--- /dev/null
+++ b/lib/utils/watch.js
@@ -0,0 +1,27 @@
+var Q = require('q');
+var path = require('path');
+var Gaze = require('gaze').Gaze;
+
+function watch(dir) {
+    var d = Q.defer();
+    dir = path.resolve(dir);
+
+    var gaze = new Gaze("**/*.md", {
+        cwd: dir
+    });
+
+    gaze.once("all", function(e, filepath) {
+        gaze.close();
+
+        d.resolve(filepath);
+    });
+    gaze.once("error", function(err) {
+        gaze.close();
+
+        d.reject(err);
+    });
+
+    return d.promise;
+}
+
+module.exports = watch;