Refactorise a little bit sxmo_migrate.sh

Some code could be deduplicated.

Signed-off-by: Stacy Harper <contact@stacyharper.net>
Signed-off-by: Maarten van Gompel <proycon@anaproy.nl>

scripts/core/sxmo_migrate.sh

@@ -12,6 +12,24 @@ smartdiff() {
 	fi
 }
 
+resolvedifference() {
+	userfile="$1"
+	defaultfile="$2"
+
+	(
+		printf "\e[31mThe file \e[32m%s\e[31m differs\e[0m\n" "$userfile"
+		smartdiff -ud "$userfile" "$defaultfile"
+	) | less -RF
+
+	printf "\e[33mDo you want to apply the default? [y/N], or perhaps open an editor [e]?\e[0m "
+	read -r reply < /dev/tty
+	if [ "y" = "$reply" ]; then
+		cp "$defaultfile" "$userfile"
+	elif [ "e" = "$reply" ]; then
+		$EDITOR "$userfile" "$defaultfile"
+	fi
+}
+
 defaultconfig() {
 	if [ ! -r "$2" ]; then
 		mkdir -p "$(dirname "$2")"
@@ -19,17 +37,7 @@ defaultconfig() {
 		chmod "$3" "$2"
 	else
 		if ! diff "$2" "$1" > /dev/null; then
-			(
+			resolvedifference "$2" "$1"
-				printf "\e[31mThe file \e[32m%s\e[31m differs\e[0m\n" "$2"
-				smartdiff -ud "$2" "$1"
-			) | less -RF
-			printf "\e[33mDo you want to apply the default? [y/N], or perhaps open an editor [e]?\e[0m "
-			read -r reply < /dev/tty
-			if [ "y" = "$reply" ]; then
-				cp "$1" "$2"
-			elif [ "e" = "$reply" ]; then
-				$EDITOR "$2" "$1"
-			fi
 		fi
 	fi
 }
@@ -40,17 +48,7 @@ checkhooks() {
 			defaulthook="/usr/share/sxmo/default_hooks/$(basename "$hook")"
 			if [ -f "$defaulthook" ]; then
 				if ! diff "$hook" "$defaulthook" > /dev/null; then
-					(
+					resolvedifference "$hook" "$defaulthook"
-						printf "\e[31mThe file \e[32m%s\e[31m differs\e[0m\n" "$hook"
-						smartdiff -ud "$hook" "$defaulthook"
-					) | less -RF
-					printf "\e[33mDo you want to remove the custom hook and fall back to the default? [y/N], or perhaps open an editor [e]?\e[0m"
-					read -r reply < /dev/tty
-					if [ "y" = "$reply" ]; then
-						rm "$hook"
-					elif [ "e" = "$reply" ]; then
-						$EDITOR "$hook" "$defaulthook"
-					fi
 				else
 					printf "\e[33mHook %s is identical to the default, so you don't need a custom hook, remove it? [Y/n]\e[0m" "$hook"
 					if [ "n" != "$reply" ]; then