reduce memuse: fileinfo uses boxed path instead of pathbuf

reduce memuse: fileinfo does not store full metadata

src/fileinfo.rs

@@ -2,17 +2,18 @@ use anyhow::Result;
 use gxhash::GxHasher;
 use memmap2::Mmap;
 use std::{
-    fs::{self, Metadata},
+    fs,
     hash::Hasher,
     io::Read,
-    path::PathBuf,
+    path::{Path, PathBuf},
+    time::SystemTime,
 };
 
 #[derive(Debug, Clone)]
 pub struct FileInfo {
-    pub path: PathBuf,
+    pub path: Box<Path>,
     pub size: u64,
-    pub filemeta: Metadata,
+    pub modified: SystemTime,
 }
 
 impl FileInfo {
@@ -40,9 +41,9 @@ impl FileInfo {
     pub fn new(path: PathBuf) -> Result<Self> {
         let filemeta = std::fs::metadata(&path)?;
         Ok(Self {
-            path,
+            path: path.into_boxed_path(),
-            filemeta: filemeta.clone(),
             size: filemeta.len(),
+            modified: filemeta.modified()?,
         })
     }
 }

src/formatter.rs

@@ -32,7 +32,7 @@ impl Formatter {
     }
 
     pub fn human_mtime(file: &FileInfo) -> Result<String> {
-        let modified_time: DateTime<Utc> = file.filemeta.modified()?.into();
+        let modified_time: DateTime<Utc> = file.modified.into();
         Ok(modified_time.format("%Y-%m-%d %H:%M:%S").to_string())
     }
 

src/interactive.rs

@@ -18,7 +18,7 @@ impl Interactive {
             itable.set_titles(row!["index", "filename", "size", "updated_at"]);
             let max_path_size = group
                 .iter()
-                .map(|f| f.path.clone().into_os_string().len())
+                .map(|f| f.path.iter().count())
                 .max()
                 .unwrap_or_default();