surf: Add DiffFile to FileDiff::Copied and FileDiff::Moved

This allows us to know the blob oid of a moved or copied file, even when
no diff is available.

Signed-off-by: Sebastian Martinez <me@sebastinez.dev>

radicle-surf/src/diff.rs

@@ -148,11 +148,12 @@ impl Diff {
         self.files.push(diff);
     }
 
-    pub fn insert_copied(&mut self, old_path: PathBuf, new_path: PathBuf) {
+    pub fn insert_copied(&mut self, old_path: PathBuf, new_path: PathBuf, copy: DiffFile) {
         self.update_stats(&DiffContent::Empty);
         let diff = FileDiff::Copied(Copied {
             old_path,
             new_path,
+            copy,
             diff: DiffContent::Empty,
         });
         self.files.push(diff);
@@ -213,6 +214,7 @@ impl Serialize for Moved {
             let mut state = serializer.serialize_struct("Moved", 2)?;
             state.serialize_field("oldPath", &self.old_path)?;
             state.serialize_field("newPath", &self.new_path)?;
+            state.serialize_field("current", &self.new)?;
             state.end()
         } else {
             let mut state = serializer.serialize_struct("Moved", 5)?;
@@ -234,6 +236,7 @@ pub struct Copied {
     pub old_path: PathBuf,
     /// The new path to this file, relative to the repository root.
     pub new_path: PathBuf,
+    pub copy: DiffFile,
     pub diff: DiffContent,
 }
 

radicle-surf/src/diff/git.rs

@@ -362,7 +362,8 @@ fn copied(diff: &mut Diff, delta: &git2::DiffDelta<'_>) -> Result<(), error::Dif
         .new_file()
         .path()
         .ok_or(error::Diff::PathUnavailable)?;
+    let copy = DiffFile::try_from(delta.new_file())?;
 
-    diff.insert_copied(old.to_path_buf(), new.to_path_buf());
+    diff.insert_copied(old.to_path_buf(), new.to_path_buf(), copy);
     Ok(())
 }