refactoring build script #1533 (#1664)

scripts/start.sh

@@ -4,16 +4,52 @@ DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"
 
 cd "$DIR/../demo-shell-ng2"
 
-if  [[ $1 = "-install" ]]; then
+show_help() {
+    echo "Usage: start.sh"
+    echo ""
+    echo "-i or -install start the demo shell and install the dependencies"
+    echo "-u or -update start the demo shell and update the dependencies"
+    echo "-c or -cleanInstall clean the demo shell install the dependencies and start the the demo shell"
+    echo "-l or -link all the ng2-components in the demo shell and start the the demo shell"
+}
+
+install() {
     npm install
-    npm run start
-elif  [[ $1 = "-update " ]]; then
+}
+
+update() {
+    echo "update"
     npm run update
-    npm run start
-elif  [[ $1 = "-cleanInstall" ]]; then
+}
+
+cleanInstall() {
     npm run clean
     npm install
-    npm run start
-else
-    npm run start
-fi
+}
+
+link() {
+    echo "link"
+    "$DIR/npm-link-demo-shell.sh"
+}
+
+eval OPTIONS=$1
+
+while [[ $1 == -* ]]; do
+    case "$1" in
+      -l|--link) link; shift;;
+            -*) shift;;
+    esac
+
+done
+
+while [[ $OPTIONS == -* ]]; do
+    case "$OPTIONS" in
+      -h|--help|-\?) show_help; exit 0;;
+      -i|--install) install; shift;;
+      -u|--update) update; shift;;
+      -c|--cleanInstall) cleanInstall; shift;;
+      -*) echo "invalid option: $1" 1>&2; show_help; exit 1;;
+    esac
+done
+
+npm run start