Method refresh_file

rust-core/src/storage/incremental.rs:63–94

更新单个文件

(
        &mut self,
        file_path: &PathBuf,
        entity_graph: &mut EntityGraph,
        call_graph: &mut PetCodeGraph,
    )

    /// 更新单个文件
    pub fn refresh_file(
        &mut self,
        file_path: &PathBuf,
        entity_graph: &mut EntityGraph,
        call_graph: &mut PetCodeGraph,
    ) -> Result<(), String> {
        info!("Refreshing file: {}", file_path.display());

        // 检查文件是否存在
        if !file_path.exists() {
            // 文件被删除，清理相关索引
            self._remove_file_entities(file_path, entity_graph, call_graph);
            return Ok(());
        }

        // 计算当前MD5
        let current_md5 = self.compute_file_md5(file_path)
            .map_err(|e| format!("Failed to compute MD5 for {}: {}", file_path.display(), e))?;

        // 检查是否需要更新
        if let Some(metadata) = self.file_metadata.get(file_path) {
            if metadata.md5 == current_md5 {
                debug!("File {} unchanged, skipping", file_path.display());
                return Ok(());
            }
        }

        // 文件需要更新，执行增量更新
        self._update_file(file_path, &current_md5, entity_graph, call_graph)?;

        Ok(())
    }

    /// 更新文件元数据
    fn _update_file(