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GiantCroissant.Lunar.Build.CoreAbstractions 0.1.1-ci.113

RFC023: Core Abstractions & Service Layer

Implementation Status: 🔄 IN PROGRESS (Week 1 of 4)
Current Phase: Phase 1.1 - IBuildContext abstraction

Component Overview

This component implements the core abstractions and service layer for the advanced build system, providing:

• IBuildContext: Centralized build environment and state management
• IBuildTask: Executable units of work with dependency management
• IBuildPipeline: Task orchestration and execution coordination
• IBuildEnvironment: Environment validation and configuration
• Service Layer: Dependency injection and configuration management

Architecture

Core Interfaces

IBuildContext

Provides unified access to build environment, configuration, and services:

• Environment state and metadata
• Configuration management
• Service provider access
• Cancellation token support

IBuildTask

Represents executable build operations with:

• Dependency declaration and resolution
• Priority-based execution ordering
• Structured result reporting
• Error handling and recovery

IBuildPipeline

Orchestrates task execution with:

• Dependency graph resolution
• Parallel execution where possible
• Progress monitoring and reporting
• Failure recovery strategies

Implementation Plan

Phase 1: Foundation (Week 1)

1. IBuildContext - Environment state abstraction
2. IBuildTask - Task execution abstraction
3. IBuildPipeline - Task orchestration abstraction
4. IBuildEnvironment - Environment validation
5. Service Layer - Core service foundation

Phase 2: Execution Engine (Week 2)

• Task execution engine implementation
• Pipeline orchestration service
• Error handling and recovery mechanisms
• Progress tracking and reporting
• Performance monitoring integration

Phase 3: RFC018 Integration (Week 3)

• Hybrid architecture with existing components
• Component adapter layer for backward compatibility
• Migration utilities and comprehensive testing
• Documentation and usage examples

Phase 4: Advanced Features (Week 4)

• Advanced pipeline capabilities
• Performance optimization and caching
• Production readiness validation
• Final integration and documentation

Integration with Existing System

This implementation maintains 100% backward compatibility with RFC018 components while providing enhanced capabilities:

• Hybrid Operation: RFC018 components work unchanged alongside new abstractions
• Migration Path: Optional migration to new abstractions with clear benefits
• Performance: Enhanced execution with better resource management
• Observability: Comprehensive monitoring and reporting capabilities

Usage Example

// Build context setup
var context = BuildContextFactory.Create(environment, configuration, services);

// Task definition
var compileTask = new CompileBuildTask("compile-components", dependencies: new[] { "restore-packages" });
var testTask = new TestBuildTask("run-tests", dependencies: new[] { "compile-components" });

// Pipeline execution
var pipeline = new BuildPipeline("main-build", tasks: new[] { compileTask, testTask });
var result = await pipeline.ExecuteAsync(context);

Testing Strategy

• Unit Tests: Comprehensive coverage for all abstractions
• Integration Tests: Validation with existing RFC018 components
• Performance Tests: Benchmarking against current implementation
• End-to-End Tests: Full build pipeline validation

Status: Ready for Phase 1.1 implementation - IBuildContext abstraction