Fix directory explore scheduling

Fixes #503

Cargo.toml

@@ -8,7 +8,7 @@ path = './benches/criterion.rs'
 
 [package]
 name = 'xplr'
-version = '0.19.2'
+version = '0.19.3'
 authors = ['Arijit Basu <hi@arijitbasu.in>']
 edition = '2021'
 description = 'A hackable, minimal, fast TUI file explorer'

docs/en/src/upgrade-guide.md

@@ -45,7 +45,7 @@ compatibility.
 
 ### Instructions
 
-#### [v0.18.0][46] -> [v0.19.2][47]
+#### [v0.18.0][46] -> [v0.19.3][47]
 
 - BREAKING: The builtin modes cannot be accessed using space separated names
   anymore. Use underscore separated mode names. For e.g.
@@ -387,4 +387,4 @@ Else do the following:
 [44]: https://github.com/sayanarijit/xplr/releases/tag/v0.16.4
 [45]: https://github.com/sayanarijit/xplr/releases/tag/v0.17.6
 [46]: https://github.com/sayanarijit/xplr/releases/tag/v0.18.0
-[47]: https://github.com/sayanarijit/xplr/releases/tag/v0.19.2
+[47]: https://github.com/sayanarijit/xplr/releases/tag/v0.19.3

src/app.rs

@@ -1109,6 +1109,15 @@ impl App {
     }
 
     pub fn set_directory(mut self, dir: DirectoryBuffer) -> Result<Self> {
+        if self
+            .directory_buffer
+            .as_ref()
+            .map(|d| d.explored_at >= dir.explored_at)
+            .unwrap_or(false)
+        {
+            return Ok(self);
+        };
+
         self = self.add_last_focus(
             dir.parent.clone(),
             dir.focused_node().map(|n| n.relative_path.clone()),

src/directory_buffer.rs

@@ -1,4 +1,5 @@
 use crate::node::Node;
+use chrono::{DateTime, Utc};
 use serde::{Deserialize, Serialize};
 
 #[derive(Debug, Clone, Eq, PartialEq, Serialize, Deserialize)]
@@ -7,6 +8,9 @@ pub struct DirectoryBuffer {
     pub nodes: Vec<Node>,
     pub total: usize,
     pub focus: usize,
+
+    #[serde(skip)]
+    pub explored_at: DateTime<Utc>,
 }
 
 impl DirectoryBuffer {
@@ -17,6 +21,7 @@ impl DirectoryBuffer {
             nodes,
             total,
             focus,
+            explored_at: Utc::now(),
         }
     }
 

src/lua.rs

@@ -146,24 +146,24 @@ mod tests {
         assert!(check_version(VERSION, "foo path").is_ok());
 
         // Current release if OK
-        assert!(check_version("0.19.2", "foo path").is_ok());
+        assert!(check_version("0.19.3", "foo path").is_ok());
 
         // Prev major release is ERR
         // - Not yet
 
         // Prev minor release is ERR (Change when we get to v1)
-        assert!(check_version("0.18.2", "foo path").is_err());
+        assert!(check_version("0.18.3", "foo path").is_err());
 
         // Prev bugfix release is OK
-        assert!(check_version("0.19.1", "foo path").is_ok());
+        assert!(check_version("0.19.2", "foo path").is_ok());
 
         // Next major release is ERR
-        assert!(check_version("1.19.2", "foo path").is_err());
+        assert!(check_version("1.19.3", "foo path").is_err());
 
         // Next minor release is ERR
-        assert!(check_version("0.20.2", "foo path").is_err());
+        assert!(check_version("0.20.3", "foo path").is_err());
 
         // Next bugfix release is ERR (Change when we get to v1)
-        assert!(check_version("0.19.3", "foo path").is_err());
+        assert!(check_version("0.19.4", "foo path").is_err());
     }
 }