make buffer picker more clear

crates/ferrite-core/src/engine.rs

@@ -9,7 +9,7 @@ use std::{
 
 use anyhow::Result;
 use ferrite_cli::Args;
-use ferrite_utility::line_ending;
+use ferrite_utility::{line_ending, trim::trim_path};
 use slab::Slab;
 use subprocess::{Exec, Redirection};
 
@@ -879,7 +879,14 @@ impl Engine {
             .map(|(id, buffer)| BufferItem {
                 id,
                 dirty: buffer.is_dirty(),
-                name: buffer.name().to_string(),
+                name: {
+                    let current_dir = env::current_dir().unwrap_or_else(|_| PathBuf::new());
+                    let current_dir = current_dir.to_string_lossy();
+                    buffer
+                        .file()
+                        .map(|path| trim_path(&current_dir, path))
+                        .unwrap_or_else(|| buffer.name().to_string())
+                },
             })
             .collect();
 

crates/ferrite-core/src/search_buffer/file_daemon.rs

@@ -9,6 +9,7 @@ use std::{
 };
 
 use cb::select;
+use ferrite_utility::trim::trim_path;
 use ignore::gitignore::{Gitignore, GitignoreBuilder};
 use notify::{RecursiveMode, Watcher};
 use rayon::prelude::*;
@@ -41,13 +42,6 @@ fn is_text_file(path: impl AsRef<Path>) -> bool {
     content_type.is_text()
 }
 
-fn trim_path(start: &str, path: &Path) -> String {
-    path.to_string_lossy()
-        .trim_start_matches(start)
-        .trim_start_matches(std::path::MAIN_SEPARATOR)
-        .to_string()
-}
-
 #[repr(transparent)]
 #[derive(Debug, Clone, PartialEq, Eq)]
 pub struct LexicallySortedString(pub String);

crates/ferrite-utility/src/lib.rs

@@ -2,3 +2,4 @@ pub mod chars;
 pub mod graphemes;
 pub mod line_ending;
 pub mod point;
+pub mod trim;

crates/ferrite-utility/src/trim.rs

@@ -0,0 +1,13 @@
+use std::path::Path;
+
+pub fn trim_path(start: &str, path: &Path) -> String {
+    let path_str = path.to_string_lossy();
+    let without_start = path_str.trim_start_matches(start);
+    if without_start < start {
+        without_start
+            .trim_start_matches(std::path::MAIN_SEPARATOR)
+            .to_string()
+    } else {
+        without_start.to_string()
+    }
+}