[OE-core] [PATCH] mkefidisk: Create interactive menu for the script

[Bruno Bottazzini]

If it is passed only the image parameter, it will show some interactive
options to help to conclude the script.

With this patch it will detect devices available in the machine, asking
to choose what it is wanted to be flashed.

it will suggest the target device. If it is a SD card the suggestion
is /dev/mmcblk0. If it is a pendrive it will suggest to use /dev/sda.

Signed-off-by: Bruno Bottazzini <bruno.bottazzini at intel.com>
---
 scripts/contrib/mkefidisk.sh | 63 ++++++++++++++++++++++++++++++++++++++++----
 1 file changed, 58 insertions(+), 5 deletions(-)

diff --git a/scripts/contrib/mkefidisk.sh b/scripts/contrib/mkefidisk.sh
index 55f72b0..66e0e58 100755
--- a/scripts/contrib/mkefidisk.sh
+++ b/scripts/contrib/mkefidisk.sh
@@ -152,8 +152,55 @@ unmount() {
 # Parse and validate arguments
 #
 if [ $# -lt 3 ] || [ $# -gt 4 ]; then
-	usage
-	exit 1
+    if [ $# -eq 1 ]; then
+        AVAILABLE_DISK=`lsblk | grep "disk" | cut -f 1 -d " "`
+        X=0
+        for disk in `echo $AVAILABLE_DISK`; do
+            mounted=`blkid -o list | grep "/dev/$disk" | grep "not mounted"`
+            if [ -n "$mounted" ]; then
+                UNMOUNTED_AVAILABLES="$UNMOUNTED_AVAILABLES /dev/$disk\n"
+                info "$X - /dev/$disk"
+                X=`expr $X + 1`
+            fi
+        done
+        if [ $X -eq 0 ]; then
+            die "No unmounted device found."
+        fi
+        read -p "Choose unmounted device number: " DISK_NUMBER
+        X=0
+        for line in `echo $UNMOUNTED_AVAILABLES`; do
+            if [ $DISK_NUMBER -eq $X ]; then
+                DISK_TO_BE_FLASHED=$line
+                break
+            else
+                X=`expr $X + 1`
+            fi
+        done
+        if [ -z "$DISK_TO_BE_FLASHED" ]; then
+            die "Option \"$DISK_NUMBER\" is invalid. Choose a valid option"
+        else
+            if [ -z `echo $DISK_TO_BE_FLASHED | grep "mmc"` ]; then
+                TARGET_TO_BE_BOOT="/dev/sda"
+            else
+                TARGET_TO_BE_BOOT="/dev/mmcblk0"
+            fi
+        fi
+        echo ""
+        echo "Choose a name of the device that will be boot from"
+        echo -n "Recommended name is: "
+        info "$TARGET_TO_BE_BOOT\n"
+        read -p "Is target device okay? [y/N]: " RESPONSE
+        if [ "$RESPONSE" != "y" ]; then
+            read -p "Choose target device name: " TARGET_TO_BE_BOOT
+        fi
+        echo ""
+        if [ -z "$TARGET_TO_BE_BOOT" ]; then
+            die "Error: choose a valid target name"
+        fi
+    else
+        usage
+	    exit 1
+    fi
 fi
 
 if [ "$1" = "-v" ]; then
@@ -162,9 +209,15 @@ if [ "$1" = "-v" ]; then
 	shift
 fi
 
-DEVICE=$1
-HDDIMG=$2
-TARGET_DEVICE=$3
+if [ -z "$AVAILABLE_DISK" ]; then
+    DEVICE=$1
+    HDDIMG=$2
+    TARGET_DEVICE=$3
+else
+    DEVICE=$DISK_TO_BE_FLASHED
+    HDDIMG=$1
+    TARGET_DEVICE=$TARGET_TO_BE_BOOT
+fi
 
 LINK=$(readlink $DEVICE)
 if [ $? -eq 0 ]; then
-- 
2.5.0