Module file_history 

File version history tracking

Automatically captures file snapshots before modifications (write, edit, patch). Provides version listing, diff generation, and restore capabilities.

Design

• Per-session file history stored in memory
• Snapshots captured before each file-modifying tool execution
• Unified diff generation between any two versions
• Restore to any previous version

Usage

use a3s_code::file_history::FileHistory;

let history = FileHistory::new(100); // max 100 snapshots
history.save_snapshot("/path/to/file.rs", "original content");
history.save_snapshot("/path/to/file.rs", "modified content");

let versions = history.list_versions("/path/to/file.rs");
let diff = history.diff("/path/to/file.rs", 0, 1);

Structs

FileHistory

File version history tracker

FileSnapshot

A single file version snapshot

VersionSummary

Summary of a file version (without content, for listing)

Functions

extract_file_path

Extract the file path from tool arguments for file-modifying tools

is_file_modifying_tool

Check if a tool name is a file-modifying tool that should trigger snapshots