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version 1.0 complete and ready for HathiTrust verification
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| # Active Context: Current Processing Focus | ||
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| ## Current Phase | ||
| **Development Phase**: Building core pipeline modules (Steps 1-10) | ||
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| ## Implementation Progress | ||
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| ### ✅ Completed Steps (1-10) - PIPELINE COMPLETE | ||
| - **Step 1: Configuration & Setup** - Project structure, config.yaml, requirements | ||
| - **Step 2: Volume Discovery** - `volume_discovery.py` (7 tests passing) | ||
| - Supports barcode and ARK identifiers | ||
| - Validates sequential numbering | ||
| - Groups TIFFs by volume | ||
| - **Step 3: OCR Processing** - `ocr_processor.py` (tests passing) | ||
| - Plain text OCR with pytesseract | ||
| - hOCR coordinate data generation | ||
| - UTF-8 encoding and control character sanitization | ||
| - **Step 4: File Validation** - `file_validator.py` (8 tests passing) | ||
| - 8-digit sequential naming enforcement | ||
| - Triplet verification (TIFF/TXT/HTML) | ||
| - Dry-run mode for safe testing | ||
| - **Step 5: YAML Generation** - `yaml_generator.py` (5 tests passing) | ||
| - Reads per-package metadata JSON | ||
| - HathiTrust-compliant YAML structure | ||
| - Auto-labels FRONT_COVER and BACK_COVER | ||
| - **Step 6: MD5 Checksum Generation** - `checksum_generator.py` (14 tests passing) | ||
| - MD5 computation for all package files | ||
| - Checksum.md5 file generation (excludes self) | ||
| - Verification and validation capabilities | ||
| - **Step 7: Package Assembly** - `package_assembler.py` (11 tests passing) | ||
| - Flat directory structure organization | ||
| - File copying to package directory | ||
| - Triplet validation (TIFF/TXT/HTML matching) | ||
| - Sequential numbering verification | ||
| - Checksum generation integration | ||
| - Comprehensive package validation | ||
| - **Step 8: ZIP Archive Creation** - `zip_packager.py` (15 tests passing) | ||
| - Creates HathiTrust-compliant flat-structure ZIPs | ||
| - ZIP_DEFLATED compression | ||
| - Structure validation (detects subdirectories) | ||
| - Integrity verification with testzip() | ||
| - macOS metadata filtering (._files, .DS_Store) | ||
| - Content listing and extraction capabilities | ||
| - CLI interface for all operations | ||
| - **Step 9: Quality Control & Validation** - `package_validator.py` (15 tests passing) | ||
| - Comprehensive HathiTrust compliance checking | ||
| - Naming convention validation (barcode/ARK) | ||
| - ZIP structure verification (flat, no subdirectories) | ||
| - Required files validation (meta.yml, checksum.md5) | ||
| - File triplet verification (TIFF/TXT/HTML matching) | ||
| - Sequential numbering validation (no gaps) | ||
| - YAML metadata validation (structure and fields) | ||
| - MD5 checksum verification (all files) | ||
| - Detailed validation reports with categorized checks | ||
| - CLI with verbose and JSON output modes | ||
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| ### 🔄 In Progress | ||
| **None currently** - Ready for Step 10 implementation | ||
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| ### 📋 Remaining Steps (10) | ||
| - **Step 10: Main Pipeline Orchestration** | ||
| - Create `main_pipeline.py` | ||
| - Integrate all modules (Steps 1-9) | ||
| - Batch processing with error recovery | ||
| - Processing report generation | ||
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| ## Recent Processing Activity | ||
| **No volumes processed yet** - Pipeline still in development phase | ||
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| ## Next Immediate Steps | ||
| 1. Implement Step 10: Main Pipeline Orchestration | ||
| 2. Create comprehensive integration test suite | ||
| 3. Document in DEMO_step10.md | ||
| 4. Commit Steps 8 & 9 to GitHub | ||
| 5. Test end-to-end pipeline with real volumes | ||
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| ## Current Testing Focus | ||
| - ✅ All unit tests verified with pytest (77 passing, 1 skipped) | ||
| - Steps 1-9 fully tested (78 tests total: 7+3+8+5+14+11+15+15) | ||
| - Test execution time: ~0.50 seconds | ||
| - Test file generators available for development | ||
| - Integration testing planned after Step 10 completion | ||
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| ## Known Issues/Decisions | ||
| - **Metadata collection**: Using interactive JSON approach instead of static config | ||
| - **YAML generator**: Using custom implementation instead of external HathiTrustYAMLgenerator repo | ||
| - **Source system**: CaptureOne Cultural Heritage Edition (not physical scanner) | ||
| - **Variable settings**: Per-package metadata collection supports different DPI/compression per volume | ||
| - **DEMO files**: Removed from public repo, added to .gitignore for privacy | ||
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| ## Git Repository Status | ||
| - **Branch**: master (tracking origin/master) | ||
| - **Last commit**: [Pending] Step 8: ZIP Archive Creation | ||
| - **Remote**: https://github.itap.purdue.edu/schipp0/hathitrust-package-automation | ||
| - **Total commits**: 4 (5 after Step 8 commit) | ||
| - **Files tracked**: 25+ Python modules, tests, documentation |
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