diff --git a/deployment.coffee b/deployment.coffee
index 6f99b8f..21f3509 100644
--- a/deployment.coffee
+++ b/deployment.coffee
@@ -26,16 +26,20 @@ module.exports = (robot) ->
                 if err != null or !stats.isDirectory
                     return res.reply "Project not found [" + directory + "]"
 
-                process.chdir(directory)
-
-                fs.stat '.svn', (err, stats) ->
-                    if err == null
-                        deploy new SvnProjectVersionning(branch), commands
+                try
+                    fs.statSync directory + '/.svn'
+                    pv = new SvnProjectVersionning branch
+                catch e
                 
-                fs.stat '.git', (err, stats) ->
-                    if err == null
-                        deploy new GitProjectVersionning(branch), commands
+                try
+                    fs.statSync directory + '/.git'
+                    pv = new GitProjectVersionning branch
+                catch e
 
+                if pv
+                    deploy directory, pv, commands
+                else
+                    res.reply "Not a SVN or GIT repository"
         catch e
             res.reply "Exception: " + e
 
@@ -65,8 +69,12 @@ class GitProjectVersionning extends ProjectVersionning
 
         commands
 
-deploy = (projectVersionning, commands) ->
-    console.log projectVersionning.getUpdateCommands()
+deploy = (directory, projectVersionning, commands) ->
+    exec = require('sync-exec');
+    commands = projectVersionning.getUpdateCommands().concat(commands)
+
+    for command in commands
+        exec command, {cwd: directory}
 
 cleanCommands = (commands) ->
     results = []