feat: TUI undo op (#5629)

codex-rs/git-tooling/src/lib.rs

@@ -1,4 +1,5 @@
 use std::fmt;
+use std::path::PathBuf;
 
 mod errors;
 mod ghost_commits;
@@ -11,18 +12,36 @@ pub use ghost_commits::create_ghost_commit;
 pub use ghost_commits::restore_ghost_commit;
 pub use ghost_commits::restore_to_commit;
 pub use platform::create_symlink;
+use schemars::JsonSchema;
+use serde::Deserialize;
+use serde::Serialize;
+use ts_rs::TS;
+
+type CommitID = String;
 
 /// Details of a ghost commit created from a repository state.
-#[derive(Debug, Clone, PartialEq, Eq)]
+#[derive(Debug, Clone, PartialEq, Eq, Serialize, Deserialize, JsonSchema, TS)]
 pub struct GhostCommit {
-    id: String,
-    parent: Option<String>,
+    id: CommitID,
+    parent: Option<CommitID>,
+    preexisting_untracked_files: Vec<PathBuf>,
+    preexisting_untracked_dirs: Vec<PathBuf>,
 }
 
 impl GhostCommit {
     /// Create a new ghost commit wrapper from a raw commit ID and optional parent.
-    pub fn new(id: String, parent: Option<String>) -> Self {
-        Self { id, parent }
+    pub fn new(
+        id: CommitID,
+        parent: Option<CommitID>,
+        preexisting_untracked_files: Vec<PathBuf>,
+        preexisting_untracked_dirs: Vec<PathBuf>,
+    ) -> Self {
+        Self {
+            id,
+            parent,
+            preexisting_untracked_files,
+            preexisting_untracked_dirs,
+        }
     }
 
     /// Commit ID for the snapshot.
@@ -34,6 +53,16 @@ impl GhostCommit {
     pub fn parent(&self) -> Option<&str> {
         self.parent.as_deref()
     }
+
+    /// Untracked or ignored files that already existed when the snapshot was captured.
+    pub fn preexisting_untracked_files(&self) -> &[PathBuf] {
+        &self.preexisting_untracked_files
+    }
+
+    /// Untracked or ignored directories that already existed when the snapshot was captured.
+    pub fn preexisting_untracked_dirs(&self) -> &[PathBuf] {
+        &self.preexisting_untracked_dirs
+    }
 }
 
 impl fmt::Display for GhostCommit {