First pass at the new check for updates function.

audiogame-manager.sh

@@ -68,36 +68,21 @@ check_news() {
 
 # Automatic update function
 update() {
-    local filePath="$(command -v ${0})"
-    if file "${filePath}" | grep -q 'Bourne-Again shell script' ; then
+    local url="$(git ls-remote --get-url)"
+    if [[ "$url" =~ ^ssh://|git@ ]] || [[ -z "$url" ]]; then
         return
     fi
-    # make sure the site can be reached
-    ping -c1 stormgames.wolfe.casa &> /dev/null || return
-    if [[ "$(uname)" == "Darwin" ]]; then
-        local downloadFile="audiogame-manager.mac"
-    else
-        if [[ "$(uname -m)" == "armv7l" ]]; then
-            local downloadFile="audiogame-manager.arm"
-        else
-            local downloadFile="audiogame-manager"
-        fi
-    fi
-    if [[ "$(wget --quiet -O - https://stormgames.wolfe.casa/downloads/${downloadFile} | sha256sum | cut -d ' ' -f1)" == "$(sha256sum "${filePath}" | cut -d ' ' -f1)" ]]; then
-        return
-    fi
-    dialog --backtitle "Audiogame Manager" --yesno "There is a new version of ${0##*/} available.\nDo you want to update now?" -1 -1
-    if [[ ${?} -eq 0 ]]; then
-        if [[ -w "$0" ]]; then
-            wget --quiet -O "${filePath}" "https://stormgames.wolfe.casa/downloads/${downloadFile}"
-            chmod +x "$0"
-        else
-            sudo wget --quiet -O "${filePath}" "https://stormgames.wolfe.casa/downloads/${downloadFile}"
-            sudo chmod +x "$0"
-        fi
-        echo "${0##*/} has been updated. Please launch the program again to use the latest version."
-        exit 0
-    fi
+    git remote update &> /dev/null
+    local upstream='@{u}'
+    local home="$(git rev-parse @)"
+    local remote="$(git rev-parse "$upstream")"
+if [[ "$home" == "$remote" ]]; then
+    return
+fi
+    dialog --backtitle "Audiogame Manager" \
+        --yesno "Updates are available. Would you like to update now?" -1 -1 --stdout || return
+    git pull
+    exit $?
 }
 
 # Function to open urls across OS.