Creating shortcut fails if the mainmenu.DATA.xml file does not exist

[jcnventura]

Hi,

On a fresh install, the /home/osmc/.kodi/userdata/addon_data/script.skinshortcuts/mainmenu.DATA.xml file may not exist. The 'grep' will fail because of that, and the shortcut will not be created.

The current algorithm is also wrong. It's:

1. Check if shortcut is in mainmenu XML file. 1a. If not, overwrite the current one and add the shortcut to the file. 1b. If yes, do nothing.

It should be:

1. Check if mainmenu XML file exists in userdata. 1a. If not, copy it 1b. If yes do nothing
2. Check if shortcut is in mainmenu XML file. 2a. If not, add the shortcut to the file 2b. If yes, do nothing.

[jcnventura]

I'll do a pull request later, but the following patch fixed this for me:

--- install-retrosmc.sh.orig    2015-07-02 21:50:59.566543338 +0200
+++ install-retrosmc.sh 2015-07-02 21:59:56.924325905 +0200
@@ -60,10 +60,11 @@
                  ./install-retrosmc.sh
                  ;;
         3)
-           if [ ! "$(grep retropie.sh /home/osmc/.kodi/userdata/addon_data/script.skinshortcuts/mainmenu.DATA.xml 2>&1)" ]; then
+           if [ ! -f /home/osmc/.kodi/userdata/addon_data/script.skinshortcuts/mainmenu.DATA.xml ]; then
            cp /usr/share/kodi/addons/skin.osmc/shortcuts/mainmenu.DATA.xml /home/osmc/.kodi/userdata/addon_data/script.skinshortcuts/mainmenu.DATA.xml
            sudo chown osmc:osmc /home/osmc/.kodi/userdata/addon_data/script.skinshortcuts/mainmenu.DATA.xml
-
+           fi
+           if [ ! "$(grep retropie.sh /home/osmc/.kodi/userdata/addon_data/script.skinshortcuts/mainmenu.DATA.xml 2>&1)" ]; then

[jcnventura]

See pull request #7