Merge pull request #29 from jvonau/patch-2

Sync from jvonau:patch-2

iiab

@@ -48,6 +48,12 @@ set -e                                   # Exit on error (avoids snowballing)
 export DEBIAN_FRONTEND=noninteractive    # Bypass (most!) interactive questions
 FLAGDIR=/etc/iiab/install-flags
 APTPATH=/usr/bin    # Avoids problematic /usr/local/bin/apt on Linux Mint
+EXPRESS=0
+
+if [ "$1" == "--express" ]; then
+    EXPRESS=1
+    shift
+fi
 
 [ $(id -un) = root ] || { echo "Please run 'sudo iiab'" ; exit 1 ; }
 
@@ -197,18 +203,23 @@ if (( $(wc -c < /tmp/apt.stderr) > 82 )); then    # apt.stderr typically contain
 elif grep -q 'apt list --upgradable' /tmp/apt.stdout; then    # apt.stdout typically contains {"All packages are up to date.\n" [even if primary locale is French & Hindi!], "Todos los paquetes están actualizados.\n", "所有软件包均为最新。\n"} ...OR... {"5 packages can be upgraded. Run 'apt list --upgradable' to see them.\n" [even if primary locale is French & Hindi!], "Se puede actualizar 1 paquete. Ejecute «apt list --upgradable» para verlo.\n", "有 1 个软件包可以升级。请执行 ‘apt list --upgradable’ 来查看它们。\n"}
     cat /tmp/apt.stdout
     echo -e "\nYour OS will now be upgraded...this takes time. THEN IT WILL AUTO-REBOOT.\n"
-
-    echo -n "Hit [ENTER] to confirm you'll RUN 'sudo iiab' AFTER IT REBOOTS: "
-    read ans < /dev/tty
-    echo
-    $APTPATH/apt -y dist-upgrade
-    reboot
-    exit 0    # Nec to avoid both output lines below (that confuse implementers!)
+    if [ $EXPRESS == 0 ]; then
+        echo -n "Hit [ENTER] to confirm you'll RUN 'sudo iiab' AFTER IT REBOOTS: "
+        read ans < /dev/tty
+        echo
+        $APTPATH/apt -y dist-upgrade
+        reboot
+        exit 0    # Nec to avoid both output lines below (that confuse implementers!)
+    else
+        $APTPATH/apt -y dist-upgrade
+    fi
 fi
 cat /tmp/apt.stdout    # "All packages are up to date.\n"
 
-echo -ne "\nHit [ENTER] to confirm you'll TRY TO RERUN 'sudo iiab' IF THERE IS A PROBLEM: "
-read ans < /dev/tty
+if [ $EXPRESS == 0 ]; then
+    echo -ne "\nHit [ENTER] to confirm you'll TRY TO RERUN 'sudo iiab' IF THERE IS A PROBLEM: "
+    read ans < /dev/tty
+fi
 
 ####################### MAIN INTERACTIVE STUFF IS ABOVE #######################