Method revert

crates/opencode-session/src/snapshot.rs:27–67

(directory: &Path, patches: Vec<SnapshotPatch>)

    }

    pub fn revert(directory: &Path, patches: Vec<SnapshotPatch>) -> Result<()> {
        let git_dir = ensure_snapshot_repo(directory)?;
        let mut seen = HashSet::new();

        for patch in patches {
            for file in patch.files {
                let file_path = PathBuf::from(&file);
                let relative = relative_to_worktree(directory, &file_path);
                if relative.is_empty() || !seen.insert(relative.clone()) {
                    continue;
                }

                let checkout = git_output(
                    directory,
                    &git_dir,
                    &["checkout", &patch.hash, "--", &relative],
                );
                if checkout.is_err() {
                    // If file does not exist in snapshot, delete it locally.
                    let exists_in_tree = git_output(
                        directory,
                        &git_dir,
                        &["ls-tree", &patch.hash, "--", &relative],
                    )
                    .ok()
                    .map(|out| !String::from_utf8_lossy(&out.stdout).trim().is_empty())
                    .unwrap_or(false);

                    if !exists_in_tree {
                        let absolute = if file_path.is_absolute() {
                            file_path
                        } else {
                            directory.join(&relative)
                        };
                        let _ = fs::remove_file(absolute);
                    }
                }
            }
        }
        Ok(())
    }

    pub fn restore(directory: &Path, snapshot: &str) -> Result<()> {
        let git_dir = ensure_snapshot_repo(directory)?;