refactorisation in files

src/gitutils/gitfile.rs

@@ -0,0 +1,21 @@
+use std::fmt::{Display, Formatter};
+use std::path::{PathBuf};
+use std::ffi::OsStr;
+
+#[derive(Debug)]
+pub struct GitFile(pub PathBuf);
+
+impl GitFile {
+    pub(crate) fn new(fullname : PathBuf) -> GitFile {
+        GitFile(fullname)
+    }
+    pub fn name(&self) -> Option<&OsStr> {
+        self.0.file_name()
+    }
+}
+
+impl Display for GitFile {
+    fn fmt(&self, f: &mut Formatter<'_>) -> std::fmt::Result {
+        write!(f, "{}", self.0.display())
+    }
+}