Refactor add_command.go into focused modules (1,218 → 610 lines)

[Copilot]

add_command.go grew to 1,218 lines with mixed responsibilities (compilation, resolution, repository ops, PR workflow). Split into focused modules for maintainability.

Changes

New modules extracted:

• add_workflow_compilation.go (127 lines) - Compilation orchestration and title/source helpers
• add_workflow_resolution.go (256 lines) - Workflow resolution, wildcard expansion, dispatch checking
• add_workflow_repository.go (163 lines) - Repo listing and interactive selection
• add_workflow_pr.go (118 lines) - PR creation workflow with branch management

Updated:

• add_command.go (610 lines) - Command registration, orchestration, core operations

Structure

Before:
add_command.go (1,218 lines)
├── Command setup
├── Workflow resolution
├── Repository operations  
├── PR workflow
├── Compilation helpers
└── Core operations

After:
add_command.go (610 lines)
├── Command setup
├── Orchestration (AddWorkflows, AddResolvedWorkflows)
└── Core operations (addWorkflowsNormal, addWorkflowWithTracking)

add_workflow_compilation.go (127 lines)
add_workflow_resolution.go (256 lines)  
add_workflow_repository.go (163 lines)
add_workflow_pr.go (118 lines)

Notes

• Public API unchanged (AddWorkflows, ResolveWorkflows, NewAddCommand)
• Existing test coverage leveraged (no new tests needed)
• Core operations (addWorkflowsNormal, addWorkflowWithTracking) remain in main file due to tight coupling

Original prompt

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This section details on the original issue you should resolve

<issue_title>[file-diet] Refactor add_command.go (1,218 lines) into focused modules</issue_title>
<issue_description>### Overview

The file pkg/cli/add_command.go has grown to 1,218 lines, making it difficult to maintain and test. This task involves refactoring it into smaller, focused files with improved test coverage.

Current State

• File: pkg/cli/add_command.go
• Size: 1,218 lines
• Test Coverage: 206 test lines (17% ratio) - primarily structural tests, missing core logic coverage
• Complexity: High - contains 17 functions handling command setup, workflow resolution, repository operations, PR creation, and file operations
• Primary Issue: The addWorkflowWithTracking() function alone is 262 lines with high cyclomatic complexity

Full File Analysis

Detailed Breakdown

Functional Areas:

1. Command Definition & Configuration (Lines 61-203)

   • NewAddCommand() - 142 lines
   • Flag registration (11+ flags)
   • Help text and usage examples
   • Interactive mode decision logic

2. Workflow Resolution (Lines 208-337)

   • ResolveWorkflows() - 130 lines
   • Workflow spec parsing and validation
   • Repository installation coordination
   • Wildcard expansion
   • Metadata extraction from frontmatter

3. Workflow Addition Logic (Lines 338-407)

   • AddWorkflows() - orchestrator function
   • AddResolvedWorkflows() - 49 lines
   • Routing between normal and PR flows

4. Repository Listing & Interactive Selection (Lines 408-557)

   • handleRepoOnlySpec() - 67 lines
   • showInteractiveWorkflowSelection() - 32 lines
   • displayAvailableWorkflows() - 48 lines
   • Table rendering and user interaction

5. Normal Workflow Addition (Lines 558-658)

   • addWorkflowsNormal() - 101 lines
   • File creation and compilation
   • Git operations and staging
   • Push handling with confirmation

6. PR Creation Flow (Lines 661-765)

   • addWorkflowsWithPR() - 105 lines
   • Branch creation (with random suffix)
   • PR creation via GitHub API
   • Branch cleanup and restoration

7. Single Workflow Addition (Lines 766-1027) ⚠️ COMPLEXITY HOTSPOT

   • addWorkflowWithTracking() - 262 lines
   • File copying and path resolution
   • Version management and source tracking
   • Content manipulation (append, title updates)
   • Compilation orchestration
   • Multiple error handling paths
   • Git staging integration

8. Utility Functions (Lines 1028-1218)

   • updateWorkflowTitle() - 12 lines
   • compileWorkflow() and 3 variants - 115 lines total
   • addSourceToWorkflow() - 8 lines
   • expandWildcardWorkflows() - 36 lines
   • checkWorkflowHasDispatch() - 46 lines

Complexity Hotspots:

• ⚠️ addWorkflowWithTracking() (262 lines) - handles file operations, version tracking, source metadata, compilation
• ⚠️ NewAddCommand() (142 lines) - massive flag configuration with complex help text
• ⚠️ ResolveWorkflows() (130 lines) - orchestrates multiple subsystems (parsing, installation, expansion)
• ⚠️ compileWorkflowWithTrackingAndRefresh() - complex compilation flow with file tracking

Coupling Issues:

The file has heavy coupling with:

• workflow package (compilation)
• parser package (spec parsing)
• console package (UI rendering)
• Git operations (inline throughout)
• File I/O operations scattered across functions

Duplication Patterns:

• Multiple compileWorkflow*() function variants with similar logic
• Repeated git staging patterns in multiple functions
• Similar error handling and verbose flag checking
• Repeated file existence checks and path operations

Refactoring Strategy

Proposed File Splits

Split the file into 6 focused modules organized by responsibility:

1. add_command.go (Command Definition)

• Functions: NewAddCommand(), AddWorkflows(), AddResolvedWorkflows()
• Responsibility: Command registration, flag configuration, high-level orchestration
• Estimated LOC: ~250 lines
• Rationale: Keep command definition and flag setup together, delegate implementation to specialized modules

2. add_workflow_resolution.go (Workflow Resolution)

• Functions: ResolveWorkflows(), expandWildcardWorkflows(), checkWorkflowHasDispatch()
• Types: ResolvedWorkflow, ResolvedWorkflows
• Responsibility: Workflow spec parsing, repository installation, wildcard expansion, metadata extraction
• Estimated LOC: ~200 lines
• Rationale: Isolated workflow resolution logic with clear input/output contracts

3. add_workflow_repository.go (Repository Operations)

• Functions: handleRepoOnlySpec(), showInteractiveWorkflowSelection(), displayAvailableWorkflows()
• Responsibility: Repository listing, interactive workflow selection, workflow discovery
• Estimated LOC: ~150 lines
  ...

• Fixes [file-diet] Refactor add_command.go (1,218 lines) into focused modules #12263

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