diff --git a/build.sh b/build.sh
new file mode 100755
index 0000000..0a27dee
--- /dev/null
+++ b/build.sh
@@ -0,0 +1,21 @@
+#!/bin/bash
+if [ ! -d ".git" ]; then
+	git init
+	git add manifest.xml
+	git commit -m "add/update manifest.xml"
+fi
+
+# test si il y a des modifs du manifest
+git diff-index --quiet HEAD --
+if [ $? -eq 1 ]; then
+	git add manifest.xml
+	git commit -m "add/update manifest.xml"
+fi
+
+if [ ! -d ".repo" ]; then
+	# initialisation de la base des repos GIT
+	/usr/bin/repo init -u . -m manifest.xml --repo-url=https://git.nas.benserv.fr/mirrors/git-repo.git
+fi
+
+# synchronisation de la base des repos GIT
+/usr/bin/repo sync