implemented bookmarks subcommand clean to remove entries with invalid

paths

README.md

@@ -66,7 +66,7 @@ Style settings accept styles and one color in the following formats:
   - [x] do not resolve links in bookmarks
   - [x] option to show invalid paths
     - [x] style option for invalid paths
-  - [ ] option & subcommand to remove invalid paths
+  - [x] subcommand to remove invalid paths
 - [x] push <number> to push path in stack
 - [x] write documentation
 - [x] change config file extension to `.toml`

src/arguments.rs

@@ -103,6 +103,9 @@ pub enum BookmarkAction {
     /// remove a bookmark by name `book remove <name>`
     remove(BookmarkSubArgs),
 
+    /// remove bookmarks with invalid paths
+    clean,
+
     /// get bookmarknames for shell completions
     completions,
 }

src/bookmarks.rs

@@ -101,6 +101,14 @@ impl Bookmarks {
         Ok(())
     }
 
+    /// 
+    pub fn remove_invalid_paths(&mut self) -> Result<()> {
+        self.bookmarks.retain(|_, path| path.is_dir());
+        self.write_bookmark_file()?;
+
+        Ok(())
+    }
+
     /// formats and prints bookmarks to string
     pub fn to_formatted_string(&self, config: &Config) -> Result<String> {
         let mut buffer = String::new();

src/main.rs

@@ -163,6 +163,7 @@ fn handle_bookmark(args: &BookmarkArgs, config: &Config, bookmarks: &mut Bookmar
             BookmarkAction::list => list_bookmarks(config, bookmarks, output)?,
             BookmarkAction::add(args) => add_bookmarks(args, config, bookmarks, output)?,
             BookmarkAction::remove(args) => remove_bookmarks(args, config, bookmarks, output)?,
+            BookmarkAction::clean => bookmarks.remove_invalid_paths()?,
             BookmarkAction::completions => println!("echo '{}'", bookmarks.get_bookmark_names()),
         };
     } else if args.name.is_some() { // handle `change to bookmark`