Adds notify-send bug warning when topgrade is run

config.example.toml

@@ -44,6 +44,9 @@
 # Skip sending a notification at the end of a run
 #skip_notify = true
 
+# Skip the preamble displayed when topgrade is run
+#display_preamble = false
+
 [git]
 #max_concurrency = 5
 # Additional git repositories to pull

src/config.rs

@@ -294,6 +294,7 @@ pub struct ConfigFile {
     tmux_arguments: Option<String>,
     set_title: Option<bool>,
     display_time: Option<bool>,
+    display_preambe: Option<bool>,
     assume_yes: Option<bool>,
     yay_arguments: Option<String>,
     aura_aur_arguments: Option<String>,
@@ -1050,6 +1051,10 @@ impl Config {
         self.config_file.display_time.unwrap_or(true)
     }
 
+    pub fn display_preamble(&self) -> bool {
+        self.config_file.display_preambe.unwrap_or(true)
+    }
+
     pub fn should_run_custom_command(&self, name: &str) -> bool {
         if self.opt.custom_commands.is_empty() {
             return true;

src/main.rs

@@ -86,6 +86,13 @@ fn run() -> Result<()> {
     debug!("Binary path: {:?}", std::env::current_exe());
     debug!("Self Update: {:?}", cfg!(feature = "self-update"));
 
+    if config.display_preamble() {
+        print_warning(format!("Due to a design issue with notify-send it could be that topgrade hangs when it's finished.
+If this is the case on your system add the --skip-notify flag to the topgrade command or set skip_notify = true in the config file.
+If you don't want this message to appear any longer set display_preamble = false in the config file.
+For more information about this issue see https://askubuntu.com/questions/110969/notify-send-ignores-timeout and https://github.com/topgrade-rs/topgrade/issues/288."));
+    }
+
     if config.run_in_tmux() && env::var("TOPGRADE_INSIDE_TMUX").is_err() {
         #[cfg(unix)]
         {