tegwick
535b83996b
Implements directory synchronization for Information Spaces: - SpaceDirectoryExporter: Export space to directory structure - Multiple variants: flat, hierarchical, by_path - Manifest generation for reimport - Incremental export (skip unchanged files) - Metadata file export - IncrementalExporter for change detection - DirectorySpaceImporter: Import directory content into space - Recursive directory scanning - Multiple file pattern support - Conflict detection with strategies (skip/overwrite/rename) - Manifest-based import for intelligent reimport - Structure preservation in space paths - BidirectionalSyncCoordinator: Two-way sync with conflict detection - Sync directions: space-to-directory, directory-to-space, bidirectional - Conflict resolution strategies: space_wins, directory_wins, newer_wins, manual, skip - Dry-run mode for preview - Orphan cleanup option - Event emission for progress tracking 45 unit tests covering all sync components. Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
473 lines
15 KiB
Python
473 lines
15 KiB
Python
"""
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Directory to Space Importer.
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Imports directory content into an Information Space, handling
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various directory structures and conflict detection.
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"""
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import hashlib
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import json
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import logging
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from dataclasses import dataclass, field
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from datetime import datetime
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from pathlib import Path
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from typing import Dict, Any, Optional, List, Set, Tuple
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from ..models import InformationSpace, SpaceDocument, SpaceStatus
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from ..events import EventBus, SpaceEventType, SpaceEvent
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logger = logging.getLogger(__name__)
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@dataclass
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class ImportConfig:
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"""
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Configuration for directory import.
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Attributes:
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file_patterns: Glob patterns for files to import (default: *.md)
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recursive: Whether to import recursively
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ignore_patterns: Patterns to ignore
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preserve_structure: Whether to preserve directory structure in space_path
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conflict_strategy: How to handle conflicts ('skip', 'overwrite', 'rename')
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import_metadata: Whether to read .markitect-* metadata files
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"""
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file_patterns: List[str] = field(default_factory=lambda: ["*.md", "*.markdown"])
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recursive: bool = True
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ignore_patterns: List[str] = field(
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default_factory=lambda: [".*", "__pycache__", "node_modules"]
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)
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preserve_structure: bool = True
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conflict_strategy: str = "skip" # skip, overwrite, rename
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import_metadata: bool = True
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@dataclass
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class ImportedDocument:
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"""
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Record of an imported document.
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Attributes:
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file_path: Source file path
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space_path: Path in space
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document_id: Assigned document ID
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content_hash: Hash of imported content
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size: Content size in bytes
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is_new: Whether this is a new document
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"""
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file_path: Path
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space_path: str
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document_id: str
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content_hash: str
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size: int
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is_new: bool = True
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@dataclass
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class ImportConflict:
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"""
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Record of an import conflict.
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Attributes:
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file_path: Source file path
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space_path: Target space path
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reason: Conflict reason
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resolution: How conflict was resolved
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"""
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file_path: Path
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space_path: str
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reason: str
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resolution: str
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@dataclass
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class ImportResult:
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"""
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Result of an import operation.
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Attributes:
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source_directory: Imported directory
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space_id: Target space ID (if existing)
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imported_documents: Successfully imported documents
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conflicts: Conflicts encountered
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errors: Any errors
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space_metadata: Imported space metadata if found
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duration_ms: Import duration in milliseconds
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"""
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source_directory: Path
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space_id: Optional[str] = None
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imported_documents: List[ImportedDocument] = field(default_factory=list)
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conflicts: List[ImportConflict] = field(default_factory=list)
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errors: Dict[str, str] = field(default_factory=dict)
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space_metadata: Optional[Dict[str, Any]] = None
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duration_ms: int = 0
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@property
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def success(self) -> bool:
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"""Check if import was successful."""
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return len(self.errors) == 0
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@property
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def document_count(self) -> int:
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"""Total number of imported documents."""
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return len(self.imported_documents)
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class DirectorySpaceImporter:
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"""
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Imports directory content into Information Space.
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Features:
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- Multiple file pattern support
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- Recursive directory scanning
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- Conflict detection and resolution
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- Metadata file handling
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- Event emission for progress tracking
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"""
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def __init__(
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self,
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config: Optional[ImportConfig] = None,
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event_bus: Optional[EventBus] = None,
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):
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"""
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Initialize the importer.
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Args:
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config: Import configuration
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event_bus: Event bus for notifications
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"""
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self.config = config or ImportConfig()
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self.event_bus = event_bus
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def scan_directory(self, source_directory: Path) -> List[Path]:
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"""
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Scan directory for importable files.
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Args:
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source_directory: Directory to scan
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Returns:
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List of file paths to import
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"""
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if not source_directory.exists():
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raise ValueError(f"Directory does not exist: {source_directory}")
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files = []
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for pattern in self.config.file_patterns:
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if self.config.recursive:
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matches = source_directory.rglob(pattern)
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else:
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matches = source_directory.glob(pattern)
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for path in matches:
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if self._should_include(path, source_directory):
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files.append(path)
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return sorted(files)
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def import_directory(
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self,
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source_directory: Path,
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existing_documents: Optional[Dict[str, SpaceDocument]] = None,
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document_creator: Optional[callable] = None,
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) -> ImportResult:
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"""
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Import directory content.
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Args:
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source_directory: Directory to import
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existing_documents: Map of space_path to existing documents
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document_creator: Function(space_path, content) -> document_id
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Returns:
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ImportResult with details of the import
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"""
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start_time = datetime.now()
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result = ImportResult(source_directory=source_directory)
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existing_documents = existing_documents or {}
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self._emit_event(
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SpaceEventType.SYNC_STARTED,
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result.space_id or "pending",
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{"direction": "import", "source": str(source_directory)},
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)
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try:
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# Load space metadata if available
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result.space_metadata = self._load_space_metadata(source_directory)
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if result.space_metadata:
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result.space_id = result.space_metadata.get("id")
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# Scan for files
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files = self.scan_directory(source_directory)
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# Import each file
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for file_path in files:
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try:
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imported = self._import_file(
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file_path,
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source_directory,
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existing_documents,
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document_creator,
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result,
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)
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if imported:
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result.imported_documents.append(imported)
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except Exception as e:
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logger.error(f"Failed to import {file_path}: {e}")
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result.errors[str(file_path)] = str(e)
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# Calculate duration
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end_time = datetime.now()
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result.duration_ms = int((end_time - start_time).total_seconds() * 1000)
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self._emit_event(
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SpaceEventType.SYNC_COMPLETED,
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result.space_id or "imported",
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{
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"direction": "import",
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"document_count": result.document_count,
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"conflicts": len(result.conflicts),
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"errors": len(result.errors),
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},
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)
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except Exception as e:
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logger.error(f"Import failed: {e}")
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result.errors["_import"] = str(e)
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return result
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def _should_include(self, path: Path, base_dir: Path) -> bool:
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"""Check if a path should be included in import."""
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# Skip directories
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if path.is_dir():
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return False
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# Check ignore patterns
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relative_parts = path.relative_to(base_dir).parts
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for pattern in self.config.ignore_patterns:
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for part in relative_parts:
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if part.startswith(pattern.rstrip("*")):
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return False
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if pattern.startswith(".") and part.startswith("."):
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return False
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return True
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def _import_file(
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self,
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file_path: Path,
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source_directory: Path,
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existing_documents: Dict[str, SpaceDocument],
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document_creator: Optional[callable],
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result: ImportResult,
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) -> Optional[ImportedDocument]:
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"""Import a single file."""
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# Determine space path
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space_path = self._file_to_space_path(file_path, source_directory)
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# Read content
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try:
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content = file_path.read_text(encoding="utf-8")
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except Exception as e:
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raise ValueError(f"Failed to read file: {e}")
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content_hash = self._compute_hash(content)
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size = len(content.encode("utf-8"))
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# Check for existing document
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existing_doc = existing_documents.get(space_path)
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if existing_doc:
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# Handle conflict
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conflict = self._handle_conflict(
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file_path, space_path, content_hash, existing_doc
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)
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if conflict:
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result.conflicts.append(conflict)
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if conflict.resolution == "skip":
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return None
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# Create or update document
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is_new = existing_doc is None
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if document_creator:
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document_id = document_creator(space_path, content)
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else:
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# Generate a simple document ID
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document_id = self._generate_document_id(space_path)
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return ImportedDocument(
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file_path=file_path,
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space_path=space_path,
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document_id=document_id,
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content_hash=content_hash,
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size=size,
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is_new=is_new,
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)
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def _file_to_space_path(self, file_path: Path, source_directory: Path) -> str:
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"""Convert file path to space path."""
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if self.config.preserve_structure:
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relative = file_path.relative_to(source_directory)
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return "/" + str(relative).replace("\\", "/")
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else:
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return "/" + file_path.name
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def _handle_conflict(
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self,
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file_path: Path,
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space_path: str,
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content_hash: str,
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existing_doc: SpaceDocument,
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) -> Optional[ImportConflict]:
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"""Handle a conflict with existing document."""
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# Check if content is actually different
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existing_hash = getattr(existing_doc, "content_hash", None)
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if existing_hash == content_hash:
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return None # No actual conflict, content is same
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if self.config.conflict_strategy == "skip":
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return ImportConflict(
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file_path=file_path,
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space_path=space_path,
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reason="document_exists",
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resolution="skip",
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)
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elif self.config.conflict_strategy == "overwrite":
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return ImportConflict(
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file_path=file_path,
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space_path=space_path,
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reason="document_exists",
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resolution="overwrite",
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)
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elif self.config.conflict_strategy == "rename":
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return ImportConflict(
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file_path=file_path,
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space_path=space_path,
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reason="document_exists",
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resolution="rename",
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)
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return None
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def _generate_document_id(self, space_path: str) -> str:
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"""Generate a document ID from space path."""
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import uuid
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return str(uuid.uuid4())
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def _compute_hash(self, content: str) -> str:
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"""Compute hash of content."""
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return hashlib.sha256(content.encode("utf-8")).hexdigest()[:16]
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def _load_space_metadata(self, directory: Path) -> Optional[Dict[str, Any]]:
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"""Load space metadata from .markitect-space.json."""
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if not self.config.import_metadata:
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return None
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metadata_path = directory / ".markitect-space.json"
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if metadata_path.exists():
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try:
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return json.loads(metadata_path.read_text(encoding="utf-8"))
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except Exception as e:
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logger.warning(f"Failed to load space metadata: {e}")
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return None
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def _load_manifest(self, directory: Path) -> Optional[Dict[str, Any]]:
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"""Load export manifest from .markitect-manifest.json."""
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manifest_path = directory / ".markitect-manifest.json"
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if manifest_path.exists():
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try:
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return json.loads(manifest_path.read_text(encoding="utf-8"))
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except Exception as e:
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logger.warning(f"Failed to load manifest: {e}")
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return None
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def _emit_event(
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self, event_type: SpaceEventType, space_id: str, payload: Dict[str, Any]
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) -> None:
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"""Emit an event if event bus is available."""
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if not self.event_bus:
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return
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event = SpaceEvent(
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event_type=event_type,
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space_id=space_id,
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payload=payload,
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)
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self.event_bus.emit(event)
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class ManifestImporter(DirectorySpaceImporter):
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"""
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Importer that uses manifest for intelligent reimport.
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Uses the .markitect-manifest.json to detect changes and
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only import modified files.
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"""
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def __init__(
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self,
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config: Optional[ImportConfig] = None,
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event_bus: Optional[EventBus] = None,
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):
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"""Initialize manifest-aware importer."""
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super().__init__(config, event_bus)
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self._manifest: Optional[Dict[str, Any]] = None
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def import_with_manifest(
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self,
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source_directory: Path,
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existing_documents: Optional[Dict[str, SpaceDocument]] = None,
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document_creator: Optional[callable] = None,
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) -> ImportResult:
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"""
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Import using manifest for change detection.
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Args:
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source_directory: Directory to import
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existing_documents: Existing documents
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document_creator: Document creator function
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Returns:
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ImportResult
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"""
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# Load manifest
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self._manifest = self._load_manifest(source_directory)
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if self._manifest:
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logger.info(
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f"Using manifest from previous export at "
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f"{self._manifest.get('exported_at', 'unknown')}"
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)
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return self.import_directory(
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source_directory, existing_documents, document_creator
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)
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def _get_manifest_hash(self, space_path: str) -> Optional[str]:
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"""Get content hash from manifest for a space path."""
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if not self._manifest:
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return None
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for file_info in self._manifest.get("files", []):
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if file_info.get("space_path") == space_path:
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return file_info.get("content_hash")
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return None
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def has_changed(self, space_path: str, current_hash: str) -> bool:
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"""Check if file has changed since last export."""
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manifest_hash = self._get_manifest_hash(space_path)
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if manifest_hash is None:
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return True # New file
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return manifest_hash != current_hash
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