Add @resurrect-save-shell-history option

  Also make @resurrect-save-bash-history an alias to the new option.
Signed-off-by: Mohammad Alsaleh <CE.Mohammad.AlSaleh@gmail.com>

scripts/helpers.sh

@@ -62,9 +62,11 @@ files_differ() {
 	! cmp -s "$1" "$2"
 }
 
-save_bash_history_option_on() {
-	local option="$(get_tmux_option "$bash_history_option" "off")"
-	[ "$option" == "on" ]
+save_shell_history_option_on() {
+	local option_shell="$(get_tmux_option "$shell_history_option" "off")"
+	local option_bash="$(get_tmux_option "$bash_history_option" "off")"
+
+	[ "$option_shell" == "on" ] || [ "$option_bash" == "on" ]
 }
 
 get_grouped_sessions() {

scripts/restore.sh

@@ -346,7 +346,7 @@ main() {
 		start_spinner "Restoring..." "Tmux restore complete!"
 		restore_all_panes
 		restore_pane_layout_for_each_window >/dev/null 2>&1
-		if save_bash_history_option_on; then
+		if save_shell_history_option_on; then
 			restore_shell_history
 		fi
 		restore_all_pane_processes

scripts/save.sh

@@ -292,8 +292,8 @@ save_all() {
 		pane_contents_create_archive
 		rm "$(pane_contents_dir "save")"/*
 	fi
-	if save_bash_history_option_on; then
 		dump_bash_history
+	if save_shell_history_option_on; then
 	fi
 }
 

scripts/variables.sh

@@ -37,7 +37,10 @@ pane_contents_option="@resurrect-capture-pane-contents"
 pane_contents_area_option="@resurrect-pane-contents-area"
 default_pane_contents_area="full"
 
+# Keep @resurrect-save-bash-history for backward compatibility.
+# It's effectively an alias to @resurrect-save-shell-history.
 bash_history_option="@resurrect-save-bash-history"
+shell_history_option="@resurrect-save-shell-history"
 
 # set to 'on' to ensure panes are never ever overwritten
 overwrite_option="@resurrect-never-overwrite"