fix: rmdir没有找到目录时不打印日志 (#30)

src/shell/command/mod.rs

@@ -43,6 +43,7 @@ pub enum CommandError {
     NotDirectory(String),
     NotFile(String),
     UnclosedQuotation(usize),
+    UnableGetArg,
 }
 
 impl CommandError {
@@ -78,7 +79,10 @@ impl CommandError {
             CommandError::UnclosedQuotation(index) => {
                 println!("command exists unclosed quotation at index: {}", index)
             }
-        };
+            CommandError::UnableGetArg => {
+                println!("unable to get argument")
+            }
+        }
     }
 }
 
@@ -417,9 +421,31 @@ impl Shell {
         if unlikely(args.len() != 1) {
             return Err(CommandError::WrongArgumentCount(args.len()));
         }
-        let path = self.is_dir(args.get(0).unwrap())?;
+        let path = args.get(0).ok_or(CommandError::UnableGetArg)?;
+        let mut parent = Self::current_dir();
+        let mut child = path.clone();
+        if let Some(index) = path.rfind('/') {
+            let (str1, str2) = path.split_at(index + 1);
+            parent = String::from(str1);
+            child = String::from(str2);
+        }
+
+        let dir =
+            fs::read_dir(Path::new(&parent)).map_err(|_| CommandError::InvalidArgument(parent))?;
+
+        let is_find = dir.filter_map(Result::ok).any(|entry| {
+            entry.file_type().map(|ft| ft.is_dir()).unwrap_or(false)
+                && entry.file_name().to_string_lossy().into_owned() == child
+        });
+
+        if !is_find {
+            return Err(CommandError::DirectoryNotFound(path.clone()));
+        }
+
+        let path = self.is_dir(path)?;
         let path_cstr = std::ffi::CString::new(path).unwrap();
         unsafe { libc::unlinkat(0, path_cstr.as_ptr(), libc::AT_REMOVEDIR) };
+
         Ok(())
     }