feat(config): allow disabling writing session metadata to disk (#3258)

* feat(config): allow disabling writing session metadata to disk

* style(fmt): rustfmt

14 files changed, 52 insertions, 10 deletions

diff --git a/zellij-server/src/background_jobs.rs b/zellij-server/src/background_jobs.rs
index b1069e67b..ddf90ee6d 100644
--- a/zellij-server/src/background_jobs.rs
+++ b/zellij-server/src/background_jobs.rs
@@ -84,6 +84,7 @@ static DEFAULT_SERIALIZATION_INTERVAL: u64 = 60000;
 pub(crate) fn background_jobs_main(
     bus: Bus<BackgroundJob>,
     serialization_interval: Option<u64>,
+    disable_session_metadata: bool,
 ) -> Result<()> {
     let err_context = || "failed to write to pty".to_string();
     let mut running_jobs: HashMap<BackgroundJob, Instant> = HashMap::new();
@@ -175,11 +176,13 @@ pub(crate) fn background_jobs_main(
                             let current_session_info = current_session_info.lock().unwrap().clone();
                             let current_session_layout =
                                 current_session_layout.lock().unwrap().clone();
-                            write_session_state_to_disk(
-                                current_session_name.clone(),
-                                current_session_info,
-                                current_session_layout,
-                            );
+                            if !disable_session_metadata {
+                                write_session_state_to_disk(
+                                    current_session_name.clone(),
+                                    current_session_info,
+                                    current_session_layout,
+                                );
+                            }
                             let session_infos_on_machine =
                                 read_other_live_session_states(&current_session_name);
                             let resurrectable_sessions =
diff --git a/zellij-server/src/lib.rs b/zellij-server/src/lib.rs
index acab5c27a..e1244ec4a 100644
--- a/zellij-server/src/lib.rs
+++ b/zellij-server/src/lib.rs
@@ -881,6 +881,7 @@ fn init_session(
     };
 
     let serialization_interval = config_options.serialization_interval;
+    let disable_session_metadata = config_options.disable_session_metadata.unwrap_or(false);
 
     let default_shell = config_options.default_shell.clone().map(|command| {
         TerminalAction::RunCommand(RunCommand {
@@ -1017,7 +1018,14 @@ fn init_session(
                 None,
                 Some(os_input.clone()),
             );
-            move || background_jobs_main(background_jobs_bus, serialization_interval).fatal()
+            move || {
+                background_jobs_main(
+                    background_jobs_bus,
+                    serialization_interval,
+                    disable_session_metadata,
+                )
+                .fatal()
+            }
         })
         .unwrap();
 
diff --git a/zellij-utils/assets/config/default.kdl b/zellij-utils/assets/config/default.kdl
index c8b8f6a19..0d49686e2 100644
--- a/zellij-utils/assets/config/default.kdl
+++ b/zellij-utils/assets/config/default.kdl
@@ -357,3 +357,9 @@ plugins {
 // Default: true
 //
 // styled_underlines false
+
+// Enable or disable writing of session metadata to disk (if disabled, other sessions might not know
+// metadata info on this session)
+// Default: false
+//
+// disable_session_metadata true
diff --git a/zellij-utils/src/input/options.rs b/zellij-utils/src/input/options.rs
index fbe51cffb..343bdb091 100644
--- a/zellij-utils/src/input/options.rs
+++ b/zellij-utils/src/input/options.rs
@@ -151,6 +151,10 @@ pub struct Options {
     /// The interval at which to serialize sessions for resurrection (in seconds)
     #[clap(long, value_parser)]
     pub serialization_interval: Option<u64>,
+
+    /// If true, will disable writing session metadata to disk
+    #[clap(long, value_parser)]
+    pub disable_session_metadata: Option<bool>,
 }
 
 #[derive(ArgEnum, Deserialize, Serialize, Debug, Clone, Copy, PartialEq)]
@@ -223,6 +227,9 @@ impl Options {
             .or(self.scrollback_lines_to_serialize);
         let styled_underlines = other.styled_underlines.or(self.styled_underlines);
         let serialization_interval = other.serialization_interval.or(self.serialization_interval);
+        let disable_session_metadata = other
+            .disable_session_metadata
+            .or(self.disable_session_metadata);
 
         Options {
             simplified_ui,
@@ -250,6 +257,7 @@ impl Options {
             scrollback_lines_to_serialize,
             styled_underlines,
             serialization_interval,
+            disable_session_metadata,
         }
     }
 
@@ -302,6 +310,9 @@ impl Options {
             .or_else(|| self.scrollback_lines_to_serialize.clone());
         let styled_underlines = other.styled_underlines.or(self.styled_underlines);
         let serialization_interval = other.serialization_interval.or(self.serialization_interval);
+        let disable_session_metadata = other
+            .disable_session_metadata
+            .or(self.disable_session_metadata);
 
         Options {
             simplified_ui,
@@ -329,6 +340,7 @@ impl Options {
             scrollback_lines_to_serialize,
             styled_underlines,
             serialization_interval,
+            disable_session_metadata,
         }
     }
 
diff --git a/zellij-utils/src/kdl/mod.rs b/zellij-utils/src/kdl/mod.rs
index 37720b2f2..1d0da5afc 100644
--- a/zellij-utils/src/kdl/mod.rs
+++ b/zellij-utils/src/kdl/mod.rs
@@ -1611,6 +1611,9 @@ impl Options {
         let serialization_interval =
             kdl_property_first_arg_as_i64_or_error!(kdl_options, "serialization_interval")
                 .map(|(scroll_buffer_size, _entry)| scroll_buffer_size as u64);
+        let disable_session_metadata =
+            kdl_property_first_arg_as_bool_or_error!(kdl_options, "disable_session_metadata")
+                .map(|(v, _)| v);
         Ok(Options {
             simplified_ui,
             theme,
@@ -1637,6 +1640,7 @@ impl Options {
             scrollback_lines_to_serialize,
             styled_underlines,
             serialization_interval,
+            disable_session_metadata,
         })
     }
 }
diff --git a/zellij-utils/src/snapshots/zellij_utils__setup__setup_test__cli_arguments_override_config_options.snap b/zellij-utils/src/snapshots/zellij_utils__setup__setup_test__cli_arguments_override_config_options.snap
index a4e972b3e..6f44a3407 100644
--- a/zellij-utils/src/snapshots/zellij_utils__setup__setup_test__cli_arguments_override_config_options.snap
+++ b/zellij-utils/src/snapshots/zellij_utils__setup__setup_test__cli_arguments_override_config_options.snap
@@ -1,6 +1,6 @@
 ---
 source: zellij-utils/src/setup.rs
-assertion_line: 686
+assertion_line: 713
 expression: "format!(\"{:#?}\", options)"
 ---
 Options {
@@ -31,4 +31,5 @@ Options {
     scrollback_lines_to_serialize: None,
     styled_underlines: None,
     serialization_interval: None,
+    disable_session_metadata: None,
 }
diff --git a/zellij-utils/src/snapshots/zellij_utils__setup__setup_test__cli_arguments_override_layout_options.snap b/zellij-utils/src/snapshots/zellij_utils__setup__setup_test__cli_arguments_override_layout_options.snap
index 2e408bf7c..c13255762 100644
--- a/zellij-utils/src/snapshots/zellij_utils__setup__setup_test__cli_arguments_override_layout_options.snap
+++ b/zellij-utils/src/snapshots/zellij_utils__setup__setup_test__cli_arguments_override_layout_options.snap
@@ -1,6 +1,6 @@
 ---
 source: zellij-utils/src/setup.rs
-assertion_line: 714
+assertion_line: 741
 expression: "format!(\"{:#?}\", options)"
 ---
 Options {
@@ -31,4 +31,5 @@ Options {
     scrollback_lines_to_serialize: None,
     styled_underlines: None,
     serialization_interval: None,
+    disable_session_metadata: None,
 }
diff --git a/zellij-utils/src/snapshots/zellij_utils__setup__setup_test__default_config_with_no_cli_arguments-3.snap b/zellij-utils/src/snapshots/zellij_utils__setup__setup_test__default_config_with_no_cli_arguments-3.snap
index 2bac95f31..ec9ea10bd 100644
--- a/zellij-utils/src/snapshots/zellij_utils__setup__setup_test__default_config_with_no_cli_arguments-3.snap
+++ b/zellij-utils/src/snapshots/zellij_utils__setup__setup_test__default_config_with_no_cli_arguments-3.snap
@@ -1,6 +1,6 @@
 ---
 source: zellij-utils/src/setup.rs
-assertion_line: 673
+assertion_line: 700
 expression: "format!(\"{:#?}\", options)"
 ---
 Options {
@@ -29,4 +29,5 @@ Options {
     scrollback_lines_to_serialize: None,
     styled_underlines: None,
     serialization_interval: None,
+    disable_session_metadata: None,
 }
diff --git a/zellij-utils/src/snapshots/zellij_utils__setup__setup_test__default_config_with_no_cli_arguments.snap b/zellij-utils/src/snapshots/zellij_utils__setup__setup_test__default_config_with_no_cli_arguments.snap
index 5bf50ad44..dda409d66 100644
--- a/zellij-utils/src/snapshots/zellij_utils__setup__setup_test__default_config_with_no_cli_arguments.snap
+++ b/zellij-utils/src/snapshots/zellij_utils__setup__setup_test__default_config_with_no_cli_arguments.snap
@@ -3830,6 +3830,7 @@ Config {
         scrollback_lines_to_serialize: None,
         styled_underlines: None,
         serialization_interval: None,
+        disable_session_metadata: None,
     },
     themes: {},
     plugins: PluginAliases {
diff --git a/zellij-utils/src/snapshots/zellij_utils__setup__setup_test__layout_env_vars_override_config_env_vars.snap b/zellij-utils/src/snapshots/zellij_utils__setup__setup_test__layout_env_vars_override_config_env_vars.snap
index 00ddc30ab..068d455b7 100644
--- a/zellij-utils/src/snapshots/zellij_utils__setup__setup_test__layout_env_vars_override_config_env_vars.snap
+++ b/zellij-utils/src/snapshots/zellij_utils__setup__setup_test__layout_env_vars_override_config_env_vars.snap
@@ -3830,6 +3830,7 @@ Config {
         scrollback_lines_to_serialize: None,
         styled_underlines: None,
         serialization_interval: None,
+        disable_session_metadata: None,
     },
     themes: {},
     plugins: PluginAliases {
diff --git a/zellij-utils/src/snapshots/zellij_utils__setup__setup_test__layout_keybinds_override_config_keybinds.snap b/zellij-utils/src/snapshots/zellij_utils__setup__setup_test__layout_keybinds_override_config_keybinds.snap
index 2030b8bad..58b4c9c47 100644
--- a/zellij-utils/src/snapshots/zellij_utils__setup__setup_test__layout_keybinds_override_config_keybinds.snap
+++ b/zellij-utils/src/snapshots/zellij_utils__setup__setup_test__layout_keybinds_override_config_keybinds.snap
@@ -87,6 +87,7 @@ Config {
         scrollback_lines_to_serialize: None,
         styled_underlines: None,
         serialization_interval: None,
+        disable_session_metadata: None,
     },
     themes: {},
     plugins: PluginAliases {
diff --git a/zellij-utils/src/snapshots/zellij_utils__setup__setup_test__layout_options_override_config_options.snap b/zellij-utils/src/snapshots/zellij_utils__setup__setup_test__layout_options_override_config_options.snap
index 9d679348e..72150ee2d 100644
--- a/zellij-utils/src/snapshots/zellij_utils__setup__setup_test__layout_options_override_config_options.snap
+++ b/zellij-utils/src/snapshots/zellij_utils__setup__setup_test__layout_options_override_config_options.snap
@@ -1,6 +1,6 @@
 ---
 source: zellij-utils/src/setup.rs
-assertion_line: 696
+assertion_line: 723
 expression: "format!(\"{:#?}\", options)"
 ---
 Options {
@@ -31,4 +31,5 @@ Options {
     scrollback_lines_to_serialize: None,
     styled_underlines: None,
     serialization_interval: None,
+    disable_session_metadata: None,
 }
diff --git a/zellij-utils/src/snapshots/zellij_utils__setup__setup_test__layout_themes_override_config_themes.snap b/zellij-utils/src/snapshots/zellij_utils__setup__setup_test__layout_themes_override_config_themes.snap
index 1580d46c7..5e22821e6 100644
--- a/zellij-utils/src/snapshots/zellij_utils__setup__setup_test__layout_themes_override_config_themes.snap
+++ b/zellij-utils/src/snapshots/zellij_utils__setup__setup_test__layout_themes_override_config_themes.snap
@@ -3830,6 +3830,7 @@ Config {
         scrollback_lines_to_serialize: None,
         styled_underlines: None,
         serialization_interval: None,
+        disable_session_metadata: None,
     },
     themes: {
         "other-theme-from-config": Theme {
diff --git a/zellij-utils/src/snapshots/zellij_utils__setup__setup_test__layout_ui_config_overrides_config_ui_config.snap b/zellij-utils/src/snapshots/zellij_utils__setup__setup_test__layout_ui_config_overrides_config_ui_config.snap
index 6e5b86860..acae6310c 100644
--- a/zellij-utils/src/snapshots/zellij_utils__setup__setup_test__layout_ui_config_overrides_config_ui_config.snap
+++ b/zellij-utils/src/snapshots/zellij_utils__setup__setup_test__layout_ui_config_overrides_config_ui_config.snap
@@ -3830,6 +3830,7 @@ Config {
         scrollback_lines_to_serialize: None,
         styled_underlines: None,
         serialization_interval: None,
+        disable_session_metadata: None,
     },
     themes: {},
     plugins: PluginAliases {