add list dir

src/main.rs

@@ -1,6 +1,10 @@
 extern crate argparse;
 extern crate rust_util;
 
+use std::{
+    path::Path,
+};
+
 use argparse::{ArgumentParser, StoreTrue, Store};
 use rust_util::*;
 
@@ -15,6 +19,35 @@ Written by Hatter Jiang
 "#, VERSION);
 }
 
+// ---------------------------------------------------------------------------------------------------------
+fn check_path(path: &Path) {
+    //println!("-------------- {:?} {}", path, path.is_dir());
+}
+
+fn list_dir(dir: &Path, fnc: fn(&Path) -> ()) -> XResult<()> {
+    list_dir_with_depth_check(&mut 0u32, dir, fnc)
+}
+
+fn list_dir_with_depth_check(depth: &mut u32, dir: &Path, fnc: fn(&Path) -> ()) -> XResult<()> {
+    if *depth > 100u32 {
+        // TODO error: return Err(Box::new("depth"));
+    }
+    for e in dir.read_dir()? {
+        let ee = e?;
+        println!("{}:{} {:?} {}", depth, "    ".repeat(*depth as usize), ee, ee.path().as_path().is_file());
+        if ee.path().as_path().is_dir() {
+            *depth += 1;
+            match list_dir_with_depth_check(depth, ee.path().as_path(), fnc) {
+                Err(_) => (), // TODO ...
+                Ok(_) => (),
+            }
+            *depth -= 1;
+        }
+        fnc(ee.path().as_path());
+    }
+    Ok(())
+}
+
 fn main() {
     let mut version = false;
     let mut target = String::from("text");
@@ -36,12 +69,14 @@ fn main() {
     }
 
     // --------------------------------------------------------------------------------------------------------
-    println!("{:?}", get_home());
+    println!("{:?}", get_home_path());
     println!("{:?}", get_absolute_path("."));
     println!("{:?}", get_absolute_path("../"));
     println!("{:?}", get_absolute_path("~"));
     println!("{:?}", get_absolute_path("~/.jssp"));
     println!("{:?}", get_absolute_path("~/.jsspx"));
 
+    list_dir(get_absolute_path("~").unwrap().as_path(), check_path).ok();
+
     println!("Hello, world!");
 }