[cmds] reduce next/prev mark errors to info to make them less noisy

demo/Dockerfile

@@ -7,11 +7,12 @@ RUN set -eux; \
 	apt install --yes --no-install-recommends bind9-dnsutils iputils-ping iproute2 curl ca-certificates htop wget unzip openssh-server; \
 	apt clean autoclean; \
 	apt autoremove --yes; \
-	wget https://github.com/tstack/lnav/releases/download/v0.11.0-beta2/lnav-0.11.0-musl-64bit.zip; \
-	unzip lnav-0.11.0-musl-64bit.zip; \
 	rm -rf /var/lib/{apt,dpkg,cache,log}/; \
 	echo "Installed base utils!"
 
+ADD https://github.com/tstack/lnav/releases/download/v0.11.0-beta2/lnav-0.11.0-musl-64bit.zip /
+RUN unzip lnav-0.11.0-musl-64bit.zip
+
 COPY docs/tutorials tutorials
 
 RUN useradd -rm -d /home/logs -s /bin/bash logs
@@ -22,14 +23,20 @@ RUN useradd -rm -d /home/tutorial1 -s /bin/bash tutorial1
 RUN echo 'tutorial1:tutorial1' | chpasswd
 RUN passwd -d tutorial1
 
+RUN useradd -rm -d /home/debug -s /bin/bash debug
+RUN echo 'debug:debug' | chpasswd
+
 USER tutorial1
 RUN /lnav-0.11.0/lnav -nN -c ":config /ui/theme monocai"
 
 USER root
 
-RUN echo 'ForceCommand env LNAVSECURE=1 TERM=xterm-256color /lnav-0.11.0/lnav -c ":switch-to-view text" -I /tutorials/tutorial-lib /tutorials/tutorial1/tutorial1.glog /tutorials/tutorial1/index.md#tutorial-1' >> /etc/ssh/sshd_config
+RUN echo 'Match User logs' >> /etc/ssh/sshd_config
+RUN echo 'ForceCommand env LNAVSECURE=1 TERM=xterm-256color /lnav-0.11.0/lnav -d /tmp/lnav.err /demo' >> /etc/ssh/sshd_config
+RUN echo 'PermitEmptyPasswords yes' >> /etc/ssh/sshd_config
+RUN echo 'Match User tutorial1' >> /etc/ssh/sshd_config
+RUN echo 'ForceCommand env PATH=/lnav-0.11.0:$PATH /tutorials/tutorial1/run.sh' >> /etc/ssh/sshd_config
 RUN echo 'PermitEmptyPasswords yes' >> /etc/ssh/sshd_config
-RUN cat /etc/ssh/sshd_config
 RUN service ssh start
 EXPOSE 22
 

docs/tutorials/tutorial1/run.sh

@@ -0,0 +1,6 @@
+#!/bin/bash
+
+export LNAVSECURE=1
+export TERM=xterm-256color
+
+lnav -I /tutorials/tutorial-lib /tutorials/tutorial1/tutorial1.glog /tutorials/tutorial1/index.md#tutorial-1

src/command_executor.cc

@@ -1106,6 +1106,15 @@ exec_context::execute(const std::string& cmdline)
 void
 exec_context::add_error_context(lnav::console::user_message& um)
 {
+    switch (um.um_level) {
+        case lnav::console::user_message::level::raw:
+        case lnav::console::user_message::level::info:
+        case lnav::console::user_message::level::ok:
+            return;
+        default:
+            break;
+    }
+
     if (um.um_snippets.empty()) {
         um.with_snippets(this->ec_source);
     }

src/lnav.cc

@@ -1194,11 +1194,18 @@ looper()
 
         auto ecb_guard
             = lnav_data.ld_exec_context.add_error_callback([](const auto& um) {
-                  lnav_data.ld_user_message_source.replace_with(
+                  auto al = um.to_attr_line().rtrim();
-                      um.to_attr_line().rtrim());
+
-                  lnav_data.ld_user_message_view.reload_data();
+                  if (al.get_string().find('\n') == std::string::npos) {
-                  lnav_data.ld_user_message_expiration
+                      if (lnav_data.ld_rl_view) {
-                      = std::chrono::steady_clock::now() + 20s;
+                          lnav_data.ld_rl_view->set_attr_value(al);
+                      }
+                  } else {
+                      lnav_data.ld_user_message_source.replace_with(al);
+                      lnav_data.ld_user_message_view.reload_data();
+                      lnav_data.ld_user_message_expiration
+                          = std::chrono::steady_clock::now() + 20s;
+                  }
               });
 
         {

src/lnav_commands.cc

@@ -715,12 +715,14 @@ com_goto_mark(exec_context& ec,
                 }
 
                 if (!new_top) {
-                    return ec.make_error(
+                    auto um = lnav::console::user_message::info(fmt::format(
-                        "no more {} bookmarks after here",
+                        FMT_STRING("no more {} bookmarks after here"),
                         fmt::join(mark_types
                                       | lnav::itertools::map(
                                           &bookmark_type_t::get_name),
-                                  ", "));
+                                  ", ")));
+
+                    return Err(um);
                 }
             } else {
                 for (const auto& bt : mark_types) {
@@ -733,7 +735,14 @@ com_goto_mark(exec_context& ec,
                 }
 
                 if (!new_top) {
-                    return ec.make_error("no more bookmarks before here");
+                    auto um = lnav::console::user_message::info(fmt::format(
+                        FMT_STRING("no more {} bookmarks before here"),
+                        fmt::join(mark_types
+                                      | lnav::itertools::map(
+                                          &bookmark_type_t::get_name),
+                                  ", ")));
+
+                    return Err(um);
                 }
             }