feat: Hide files in .gitignore and .git folder from path node

- Updated path node to exclude files listed in `.gitignore`
- Added functionality to hide the `.git` folder

Signed-off-by: Awiteb <a@4rs.nl>

src/model/path_node/mod.rs

@@ -1,12 +1,13 @@
 // SPDX-License-Identifier: MIT
 // Copyright (c) 2019-2022 golmman
+// Copyright (c) 2024 Awiteb <a@4rs.nl>
 
 use crate::model::compare_functions::PathNodeCompare;
 use crate::model::config::Config;
 use crate::model::tree_index::TreeIndex;
 use log::info;
-use std::fs::canonicalize;
-use std::path::PathBuf;
+use std::fs::{self, canonicalize};
+use std::path::{Path, PathBuf};
 
 mod debug;
 
@@ -18,30 +19,36 @@ pub struct PathNode {
     pub is_err: bool,
     pub is_expanded: bool,
     pub path: PathBuf,
+    pub gitignore: Vec<String>,
 }
 
-impl From<&str> for PathNode {
-    fn from(working_dir: &str) -> Self {
+impl<T> From<T> for PathNode
+where
+    T: AsRef<Path>,
+{
+    fn from(working_dir: T) -> Self {
+        let gitignore_path = Path::new(working_dir.as_ref()).join(".gitignore");
+        let mut gitignore = if Path::exists(&gitignore_path) {
+            fs::read_to_string(&gitignore_path)
+                .map(|content| {
+                    content
+                        .split('\n')
+                        .map(|path| path.trim_matches('/').to_owned())
+                        .collect()
+                })
+                .unwrap_or_default()
+        } else {
+            Vec::new()
+        };
+        gitignore.push(".git".to_owned());
         Self {
             children: Vec::new(),
-            display_text: String::from(working_dir),
+            display_text: working_dir.as_ref().display().to_string(),
             is_dir: true,
             is_err: false,
             is_expanded: false,
-            path: PathBuf::from(working_dir),
-        }
-    }
-}
-
-impl From<String> for PathNode {
-    fn from(working_dir: String) -> Self {
-        Self {
-            children: Vec::new(),
-            display_text: working_dir.clone(),
-            is_dir: true,
-            is_err: false,
-            is_expanded: false,
-            path: PathBuf::from(working_dir),
+            path: PathBuf::from(working_dir.as_ref()),
+            gitignore,
         }
     }
 }
@@ -50,7 +57,7 @@ impl PathNode {
     pub fn new_expanded(config: Config) -> Self {
         info!("initializing path node");
 
-        let mut path_node = Self::from(config.setup.working_dir.clone());
+        let mut path_node = Self::from(&config.setup.working_dir);
         let path_node_compare = Self::get_path_node_compare(&config);
         path_node.expand_dir(&TreeIndex::new(), path_node_compare);
 
@@ -72,17 +79,18 @@ impl PathNode {
 
         let mut path_nodes = dirs
             .unwrap()
-            .map(|dir_entry| {
+            .filter_map(|dir_entry| {
                 let dir_entry = dir_entry.unwrap();
-
-                PathNode {
+                let entry_name = dir_entry.file_name().into_string().unwrap();
+                (!self.gitignore.contains(&entry_name)).then(|| PathNode {
                     children: Vec::new(),
-                    display_text: dir_entry.file_name().into_string().unwrap(),
+                    display_text: entry_name,
                     is_dir: dir_entry.path().is_dir(),
                     is_err: false,
                     is_expanded: false,
                     path: dir_entry.path(),
-                }
+                    gitignore: self.gitignore.clone(),
+                })
             })
             .collect::<Vec<PathNode>>();