# Task ID: 93
# Title: Implement Git Workflow Integration
# Status: pending
# Dependencies: None
# Priority: high
# Description: Add `task-master git` command suite to automate git workflows based on established patterns from Task 4, eliminating manual overhead and ensuring 100% consistency
# Details:
Create a comprehensive git workflow automation system that integrates deeply with TaskMaster's task management. The feature will:

1. **Automated Branch Management**:
   - Create branches following `task-{id}` naming convention
   - Validate branch names and prevent conflicts
   - Handle branch switching with uncommitted changes
   - Clean up local and remote branches post-merge

2. **Intelligent Commit Generation**:
   - Auto-detect commit type (feat/fix/test/refactor/docs) from file changes
   - Generate standardized commit messages with task context
   - Support subtask-specific commits with proper references
   - Include coverage delta in test commits

3. **PR Automation**:
   - Generate comprehensive PR descriptions from task/subtask data
   - Include implementation details, test coverage, breaking changes
   - Format using GitHub markdown with task hierarchy
   - Auto-populate PR template with relevant metadata

4. **Workflow State Management**:
   - Track current task branch and status
   - Validate task readiness before PR creation
   - Ensure all subtasks completed before finishing
   - Handle merge conflicts gracefully

5. **Integration Points**:
   - Seamless integration with existing task commands
   - MCP server support for IDE integrations
   - GitHub CLI (`gh`) authentication support
   - Coverage report parsing and display

**Technical Architecture**:
- Modular command structure in `scripts/modules/task-manager/git-*`
- Git operations wrapper using simple-git or native child_process
- Template engine for commit/PR generation in `scripts/modules/`
- State persistence in `.taskmaster/git-state.json`
- Error recovery and rollback mechanisms

**Key Files to Create**:
- `scripts/modules/task-manager/git-start.js` - Branch creation and task status update
- `scripts/modules/task-manager/git-commit.js` - Intelligent commit message generation
- `scripts/modules/task-manager/git-pr.js` - PR creation with auto-generated description
- `scripts/modules/task-manager/git-finish.js` - Post-merge cleanup and status update
- `scripts/modules/task-manager/git-status.js` - Current git workflow state display
- `scripts/modules/git-operations.js` - Core git functionality wrapper
- `scripts/modules/commit-analyzer.js` - File change analysis for commit types
- `scripts/modules/pr-description-generator.js` - PR description template generator

**MCP Integration Files**:
- `mcp-server/src/core/direct-functions/git-start.js`
- `mcp-server/src/core/direct-functions/git-commit.js`
- `mcp-server/src/core/direct-functions/git-pr.js`
- `mcp-server/src/core/direct-functions/git-finish.js`
- `mcp-server/src/core/direct-functions/git-status.js`
- `mcp-server/src/tools/git-start.js`
- `mcp-server/src/tools/git-commit.js`
- `mcp-server/src/tools/git-pr.js`
- `mcp-server/src/tools/git-finish.js`
- `mcp-server/src/tools/git-status.js`

**Configuration**:
- Add git workflow settings to `.taskmasterconfig`
- Support for custom commit prefixes and PR templates
- Branch naming pattern customization
- Remote repository detection and validation

# Test Strategy:
Implement comprehensive test suite following Task 4's TDD approach:

1. **Unit Tests** (target: 95%+ coverage):
   - Git operations wrapper with mocked git commands
   - Commit type detection with various file change scenarios
   - PR description generation with different task structures
   - Branch name validation and generation
   - State management and persistence

2. **Integration Tests**:
   - Full workflow simulation in test repository
   - Error handling for git conflicts and failures
   - Multi-task workflow scenarios
   - Coverage integration with real test runs
   - GitHub API interaction (mocked)

3. **E2E Tests**:
   - Complete task lifecycle from start to finish
   - Multiple developer workflow simulation
   - Merge conflict resolution scenarios
   - Branch protection and validation

4. **Test Implementation Details**:
   - Use Jest with git repository fixtures
   - Mock simple-git for isolated unit tests
   - Create test tasks.json scenarios
   - Validate all error messages and edge cases
   - Test rollback and recovery mechanisms

5. **Coverage Requirements**:
   - Minimum 90% overall coverage
   - 100% coverage for critical paths (branch creation, PR generation)
   - All error scenarios must be tested
   - Performance tests for large task hierarchies

# Subtasks:
## 1. Design and implement core git operations wrapper [pending]
### Dependencies: None
### Description: Create a robust git operations layer that handles all git commands with proper error handling and state management
### Details:
Create `scripts/modules/git-operations.js` with methods for:
- Branch creation/deletion (local and remote)
- Commit operations with message formatting
- Status checking and conflict detection
- Remote operations (fetch, push, pull)
- Repository validation and setup

Use simple-git library or child_process for git commands. Implement comprehensive error handling with specific error types for different git failures. Include retry logic for network operations.

## 2. Implement git start command [pending]
### Dependencies: None
### Description: Create the entry point for task-based git workflows with automated branch creation and task status updates
### Details:
Implement `scripts/modules/task-manager/git-start.js` with functionality to:
- Validate task exists and is ready to start
- Check for clean working directory
- Create branch with `task-{id}` naming
- Update task status to 'in-progress'
- Store workflow state in `.taskmaster/git-state.json`
- Handle existing branch scenarios
- Support --force flag for branch recreation

Integrate with existing task-master commands and ensure MCP compatibility.

## 3. Build intelligent commit analyzer and generator [pending]
### Dependencies: None
### Description: Create a system that analyzes file changes to auto-detect commit types and generate standardized commit messages
### Details:
Develop `scripts/modules/commit-analyzer.js` with:
- File change detection and categorization
- Commit type inference rules:
  - feat: new files in scripts/, new functions
  - fix: changes to existing logic
  - test: changes in tests/ directory
  - docs: markdown and comment changes
  - refactor: file moves, renames, cleanup
- Smart message generation with task context
- Support for custom commit templates
- Subtask reference inclusion

Create `scripts/modules/task-manager/git-commit.js` that uses the analyzer to generate commits with proper formatting.

## 4. Create PR description generator and command [pending]
### Dependencies: None
### Description: Build a comprehensive PR description generator that creates detailed, formatted descriptions from task data
### Details:
Implement `scripts/modules/pr-description-generator.js` to generate:
- Task overview with full context
- Subtask completion checklist
- Implementation details summary
- Test coverage metrics integration
- Breaking changes section
- Related tasks and dependencies

Create `scripts/modules/task-manager/git-pr.js` to:
- Validate all subtasks are complete
- Generate PR title and description
- Use GitHub CLI for PR creation
- Handle draft PR scenarios
- Support custom PR templates
- Include labels based on task metadata

## 5. Implement git finish command with cleanup [pending]
### Dependencies: None
### Description: Create the workflow completion command that handles post-merge cleanup and task status updates
### Details:
Build `scripts/modules/task-manager/git-finish.js` with:
- PR merge verification via GitHub API
- Local branch cleanup
- Remote branch deletion (with confirmation)
- Task status update to 'done'
- Workflow state cleanup
- Switch back to main branch
- Pull latest changes

Handle scenarios where PR isn't merged yet or merge failed. Include --skip-cleanup flag for manual branch management.

## 6. Add git status command for workflow visibility [pending]
### Dependencies: None
### Description: Create a status command that shows current git workflow state with task context
### Details:
Implement `scripts/modules/task-manager/git-status.js` to display:
- Current task and branch information
- Subtask completion status
- Uncommitted changes summary
- PR status if exists
- Coverage metrics comparison
- Suggested next actions

Integrate with existing task status displays and provide actionable guidance based on workflow state.

## 7. Integrate with Commander.js and add command routing [pending]
### Dependencies: None
### Description: Add the git command suite to TaskMaster's CLI with proper help text and option handling
### Details:
Update `scripts/modules/commands.js` to:
- Add 'git' command with subcommands
- Implement option parsing for all git commands
- Add comprehensive help text
- Ensure proper error handling and display
- Validate command prerequisites

Create proper command structure:
- `task-master git start [taskId] [options]`
- `task-master git commit [options]`
- `task-master git pr [options]`
- `task-master git finish [options]`
- `task-master git status [options]`

## 8. Add MCP server integration for git commands [pending]
### Dependencies: None
### Description: Implement MCP tools and direct functions for git workflow commands to enable IDE integration
### Details:
Create MCP integration in:
- `mcp-server/src/core/direct-functions/git-start.js`
- `mcp-server/src/core/direct-functions/git-commit.js`
- `mcp-server/src/core/direct-functions/git-pr.js`
- `mcp-server/src/core/direct-functions/git-finish.js`
- `mcp-server/src/core/direct-functions/git-status.js`
- `mcp-server/src/tools/git-start.js`
- `mcp-server/src/tools/git-commit.js`
- `mcp-server/src/tools/git-pr.js`
- `mcp-server/src/tools/git-finish.js`
- `mcp-server/src/tools/git-status.js`

Implement tools for:
- git_start_task
- git_commit_task
- git_create_pr
- git_finish_task
- git_workflow_status

Ensure proper error handling, logging, and response formatting. Include telemetry data for git operations.

## 9. Create comprehensive test suite [pending]
### Dependencies: None
### Description: Implement full test coverage following Task 4's high standards with unit, integration, and E2E tests
### Details:
Create test files:
- `tests/unit/git/` - Unit tests for all git components
- `tests/integration/git-workflow.test.js` - Full workflow tests
- `tests/e2e/git-automation.test.js` - End-to-end scenarios

Implement:
- Git repository fixtures and mocks
- Coverage tracking and reporting
- Performance benchmarks
- Error scenario coverage
- Multi-developer workflow simulations

Target 95%+ coverage with focus on critical paths.

## 10. Add configuration and documentation [pending]
### Dependencies: None
### Description: Create configuration options and comprehensive documentation for the git workflow feature
### Details:
Configuration tasks:
- Add git workflow settings to `.taskmasterconfig`
- Support environment variables for GitHub tokens
- Create default PR and commit templates
- Add branch naming customization

Documentation tasks:
- Update README with git workflow section
- Create `docs/git-workflow.md` guide
- Add examples for common scenarios
- Document configuration options
- Create troubleshooting guide

Update rule files:
- Create `.cursor/rules/git_workflow.mdc`
- Update existing workflow rules