feat: implement Issue #148 core infrastructure for explode-implode variants
Complete implementation of Phase 1 core infrastructure: Core Infrastructure Components: - ExplodeVariant enum (flat, hierarchical, semantic) - ExplodeMode, ManifestVersion, DetectionConfidence enums - BaseVariant abstract class with common interface - ExplodeOptions, ImplodeOptions, ExplodeResult, ImplodeResult dataclasses Manifest System: - ManifestManager class for manifest.md creation and parsing - StructureEntry and ManifestData dataclasses - YAML front matter with complete metadata preservation - Validation and update mechanisms Variant Detection: - VariantDetector class with multiple detection strategies - Manifest-based detection (highest priority) - Directory naming pattern recognition - Semantic structure analysis with confidence scoring - Automatic fallback and combination logic Command Interface Updates: - md-explode: Added --variant parameter with [flat|hierarchical|semantic] - md-explode: Added --create-manifest/--no-manifest option - md-implode: Added --force-variant parameter for manual override - md-implode: Integrated auto-detection with verbose output - Updated help text and examples for both commands Test Coverage: - Comprehensive test suite with 21 test cases - Tests for all enums, dataclasses, and core functionality - ManifestManager creation, reading, and validation tests - VariantDetector pattern recognition and confidence tests - 100% test pass rate with robust edge case handling Infrastructure Features: - Backward compatibility maintained (flat variant default) - Graceful handling of unimplemented variants with user warnings - Extensible design for easy addition of new variants - Clear separation between infrastructure and implementation Success Criteria Met: ✅ ExplodeVariant enum with all planned variants ✅ ManifestManager creates and parses manifest.md files ✅ Commands accept variant parameters ✅ Auto-detection logic identifies variant types ✅ Unit tests achieve 100% pass rate ✅ Backward compatibility maintained Ready for Phase 2: Variant implementations (Issue #149) 🤖 Generated with [Claude Code](https://claude.ai/code) Co-Authored-By: Claude <noreply@anthropic.com>
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@@ -1733,43 +1733,68 @@ def explode_markdown_file(input_file, output_dir):
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@click.argument('input_file', type=click.Path(exists=True))
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@click.option('--output-dir', '-o', type=click.Path(),
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help='Output directory for exploded files (default: <filename>_exploded)')
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@click.option('--variant', type=click.Choice(['flat', 'hierarchical', 'semantic']),
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default='flat', help='Directory organization variant (default: flat)')
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@click.option('--max-depth', type=int, default=10,
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help='Maximum directory nesting depth (default: 10)')
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@click.option('--create-manifest/--no-manifest', default=True,
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help='Create manifest.md for reversibility (default: true)')
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@click.option('--dry-run', is_flag=True,
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help='Show what would be done without creating files')
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@click.option('--verbose', '-v', is_flag=True,
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help='Show detailed output during processing')
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@click.pass_context
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def md_explode_command(ctx, input_file, output_dir, max_depth, dry_run, verbose):
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def md_explode_command(ctx, input_file, output_dir, variant, max_depth, create_manifest, dry_run, verbose):
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"""
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Explode a markdown file into a directory structure.
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Takes a markdown file with hierarchical headings (# ## ### etc.) and creates
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a directory structure where each heading becomes a directory or file, with
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content distributed appropriately.
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content distributed appropriately. Supports multiple organization variants
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for different use cases.
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INPUT_FILE: Path to the markdown file to explode
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Variants:
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flat: Current default - creates directories based on h1 headings
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hierarchical: Numbered structure reflecting heading hierarchy
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semantic: Content-based grouping (parts, chapters, appendices)
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Examples:
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# Explode book.md into book_exploded/ directory
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# Explode book.md into book_exploded/ directory (flat structure)
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markitect md-explode book.md
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# Use hierarchical structure with numbered directories
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markitect md-explode book.md --variant hierarchical
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# Explode into custom output directory
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markitect md-explode book.md --output-dir /path/to/chapters
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# Preview what would be created
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markitect md-explode book.md --dry-run --verbose
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markitect md-explode book.md --dry-run --verbose --variant semantic
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# Explode without creating manifest (legacy mode)
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markitect md-explode book.md --no-manifest
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"""
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config = ctx.obj or {}
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try:
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input_path = Path(input_file)
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# Note: Variant system infrastructure is in place, but only 'flat' is currently implemented
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# hierarchical and semantic variants will be implemented in Phase 2 (Issue #149)
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if variant != 'flat':
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click.echo(f"⚠️ Warning: '{variant}' variant not yet implemented. Using 'flat' variant.")
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click.echo(" Hierarchical and semantic variants coming in Phase 2.")
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variant = 'flat'
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# Determine output directory
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if output_dir:
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output_path = Path(output_dir)
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else:
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output_path = input_path.parent / f"{input_path.stem}_exploded"
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# For future: variant-specific naming like book.mdd/
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suffix = "_exploded" if variant == 'flat' else ".mdd"
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output_path = input_path.parent / f"{input_path.stem}{suffix}"
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is_verbose = verbose or config.get('verbose', False)
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@@ -2999,6 +3024,8 @@ def cli_implode_directory(input_dir, output_file, dry_run=False, verbose=False,
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@click.argument('input_dir', type=click.Path(exists=True, file_okay=False, dir_okay=True))
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@click.option('--output', '-o', type=click.Path(),
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help='Output markdown file (default: <dirname>_imploded.md)')
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@click.option('--force-variant', type=click.Choice(['flat', 'hierarchical', 'semantic']),
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help='Force specific variant instead of auto-detection')
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@click.option('--dry-run', is_flag=True,
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help='Preview what would be created without writing files')
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@click.option('--verbose', '-v', is_flag=True,
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@@ -3010,25 +3037,35 @@ def cli_implode_directory(input_dir, output_file, dry_run=False, verbose=False,
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@click.option('--preserve-front-matter/--no-front-matter', default=True,
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help='Preserve YAML front matter from files (default: preserve)')
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@click.pass_context
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def md_implode_command(ctx, input_dir, output, dry_run, verbose, overwrite,
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def md_implode_command(ctx, input_dir, output, force_variant, dry_run, verbose, overwrite,
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section_spacing, preserve_front_matter):
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"""
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Implode a directory structure back into a single markdown file.
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Takes a directory structure (like one created by md-explode) and combines
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all markdown files back into a single document, reconstructing the original
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hierarchical heading structure.
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hierarchical heading structure. Automatically detects the variant used
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during explosion for optimal reconstruction.
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INPUT_DIR: Path to the directory to implode
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Auto-Detection:
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The command automatically detects the variant type by analyzing:
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- manifest.md file (highest priority)
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- Directory naming patterns
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- Content organization structure
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Examples:
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# Implode exploded directory back to markdown
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# Implode exploded directory back to markdown (auto-detect variant)
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markitect md-implode book_exploded/
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# Force specific variant instead of auto-detection
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markitect md-implode chapters/ --force-variant hierarchical
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# Specify custom output file
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markitect md-implode chapters/ --output reconstructed.md
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# Preview what would be created
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# Preview what would be created with detection info
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markitect md-implode content/ --dry-run --verbose
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"""
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config = ctx.obj or {}
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@@ -3036,6 +3073,43 @@ def md_implode_command(ctx, input_dir, output, dry_run, verbose, overwrite,
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try:
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input_path = Path(input_dir)
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# Auto-detect variant unless forced
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detected_variant = None
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detection_info = None
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if force_variant:
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detected_variant = force_variant
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detection_info = f"Forced variant: {force_variant}"
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else:
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try:
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# Import here to avoid circular imports during command registration
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from markitect.explode_variants import VariantDetector
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detector = VariantDetector()
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detection_result = detector.detect_variant(input_path)
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if detection_result.variant:
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detected_variant = detection_result.variant.value
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detection_info = f"Auto-detected: {detection_result.variant.value} (confidence: {detection_result.confidence.value})"
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if verbose:
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click.echo(f"🔍 {detection_info}")
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for evidence in detection_result.evidence:
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click.echo(f" • {evidence}")
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else:
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detected_variant = 'flat' # fallback
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detection_info = "Fallback to flat variant (no clear patterns detected)"
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if verbose:
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click.echo(f"⚠️ {detection_info}")
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except ImportError:
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detected_variant = 'flat' # fallback if variant system not available
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detection_info = "Using flat variant (variant system not available)"
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# Note: Currently only flat variant is implemented
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if detected_variant != 'flat':
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click.echo(f"⚠️ Warning: '{detected_variant}' variant detected but not yet implemented.")
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click.echo(" Using 'flat' variant for now. Full variant support coming in Phase 2.")
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detected_variant = 'flat'
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# Determine output file
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if output:
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output_path = Path(output)
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