[init] delay initial command execution until some files are loaded

Fixes #764

src/lnav.cc

@@ -1645,8 +1645,8 @@ static void looper()
                 }
                 rebuild_indexes();
                 if (!initial_build &&
-                        lnav_data.ld_log_source.text_line_count() == 0 &&
-                        lnav_data.ld_text_source.text_line_count() > 0) {
+                    lnav_data.ld_log_source.text_line_count() == 0 &&
+                    lnav_data.ld_text_source.text_line_count() > 0) {
                     ensure_view(&lnav_data.ld_views[LNV_TEXT]);
                     lnav_data.ld_views[LNV_TEXT].set_top(vis_line_t(0));
                     lnav_data.ld_rl_view->set_alt_value(
@@ -1662,8 +1662,8 @@ static void looper()
                     lnav_data.ld_views[LNV_LOG].set_top(tc_log->get_top_for_last_row());
                 }
                 if (!initial_build &&
-                        lnav_data.ld_log_source.text_line_count() == 0 &&
-                        !lnav_data.ld_other_files.empty()) {
+                    lnav_data.ld_log_source.text_line_count() == 0 &&
+                    !lnav_data.ld_other_files.empty()) {
                     ensure_view(&lnav_data.ld_views[LNV_SCHEMA]);
                 }
 
@@ -1677,7 +1677,7 @@ static void looper()
                     initial_build = true;
                 }
 
-                if (!session_loaded) {
+                if (initial_build && !session_loaded) {
                     load_session();
                     if (lnav_data.ld_session_save_time) {
                         std::string ago;

src/session_data.cc

@@ -1297,7 +1297,7 @@ static void save_session_with_id(const std::string session_id)
                     view_map.gen("commands");
                     yajlpp_array cmd_array(handle);
 
-                    for (const auto filter : fs) {
+                    for (const auto& filter : fs) {
                         string cmd = filter->to_command();
 
                         if (cmd.empty()) {
@@ -1332,7 +1332,7 @@ static void save_session_with_id(const std::string session_id)
                                 continue;
                             }
 
-                            for (auto vd : elf->elf_value_defs) {
+                            for (const auto& vd : elf->elf_value_defs) {
                                 if (!vd.second->vd_user_hidden) {
                                     continue;
                                 }