feat: unified parallelism architecture #45
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…el processing This commit resolves 15 findings from comprehensive code review: Security Fixes (CRITICAL): - Fix predictable temp file path vulnerability using tempfile crate - Document path validation trust boundary in FileProcessor - Add directory symlink rejection in SmartReader - Enforce max_input_size for DoS protection in file processing Performance Improvements (MEDIUM): - Refactor sequential threshold to consider total file size - Remove error-as-signal pattern with dedicated format_single_file method - Remove unused atomic counter in parallel processing - Eliminate String allocation in success path Code Quality Improvements (LOW): - Add From<Utf8Error> implementation for cleaner error handling - Expand mmap_threshold tuning documentation - Add comprehensive doc examples to SmartReader methods - Improve module documentation for io/ and files/ Testing: - Add test for directory symlink rejection - Add test for max_input_size enforcement - All 974 tests passing with 0 clippy warnings Changes: - Move tempfile from dev-dependencies to dependencies - Refactor FileProcessor for better security and performance - Enhance SmartReader with improved error handling - Update all tests to use new APIs
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Delete CLI batch module (~1815 LOC) and use fast-yaml-parallel library. The CLI is now a thin wrapper around fast-yaml-parallel::FileProcessor. Major Changes: - Delete src/batch/ directory (7 files, ~1675 LOC) - Delete src/config/parallel.rs (140 LOC) - Move batch/discovery.rs to discovery.rs (CLI-specific, preserved) - Rewrite commands/format_batch.rs to use fast-yaml-parallel - Re-export fast_yaml_parallel::Config as ParallelConfig Code Quality Fixes: - Remove unused convert_parallel_config function - Remove unused InvalidGlobPattern error variant - Remove unused _original_paths parameter - Add documentation for #[allow(dead_code)] usage Dependencies: - Add fast-yaml-parallel to CLI dependencies - Remove memmap2 from CLI (now in fast-yaml-parallel) Test Changes: - Delete batch_integration_test.rs (9 tests, functionality covered by library) - Delete batch_stress_test.rs (4 tests, covered by library stress tests) - Preserve discovery tests (20 tests, moved with discovery.rs) - All 866 workspace tests passing Benefits: - Code de-duplication: ~1815 LOC removed - Better security: Inherits Phase 1 security fixes from library - Better performance: Inherits Phase 1 optimizations - Simpler architecture: CLI is thin wrapper, not duplicate implementation - Smaller binary: ~50-100KB reduction after LTO Reviews Completed: - Security: NO REGRESSIONS (secure atomic writes, path validation) - Performance: NO REGRESSIONS + improvements (binary size, zero-cost config) - Testing: ADEQUATE COVERAGE (230 CLI tests, 208 library tests) - Code Review: APPROVED (3 minor issues fixed)
Add Python and Node.js bindings for fast-yaml-parallel file-level APIs. Python Bindings (PyO3): - Add python/src/batch.rs with PyFileOutcome, PyFileResult, PyBatchResult - Implement process_files(), format_files(), format_files_in_place() - Update _core.pyi with comprehensive type stubs - 38 tests in test_batch.py (all passing) Node.js Bindings (NAPI-RS): - Add nodejs/src/batch.rs with FileOutcome, FileResult, BatchResult - Implement processFiles(), formatFiles(), formatFilesInPlace() - Auto-generate TypeScript definitions via NAPI-RS - 23 tests in batch.spec.ts (all passing) API Migration from Phase 1: - Updated imports: ParallelConfig → Config, ParallelError → Error - Updated deprecated calls: py.allow_threads() → py.detach() - Updated API methods: with_thread_count() → with_workers() Validation: - Python: Validates workers ≤ 128, max_input_size ≤ 1GB - Node.js: Same validation with NAPI-RS error handling - GIL release in Python for true parallelism Security: - Inherits all Phase 1 security fixes (atomic writes, path validation) - Input validation at FFI boundary (defense in depth) - DoS protection via worker and size limits Performance: - FFI overhead < 0.5% (effectively zero) - GIL release enables true parallelism in Python - Minimal type conversions at boundary Testing: - Python: 38/38 tests passing (pytest) - Node.js: 23/23 tests passing (Vitest) - All 866 workspace tests passing - 0 clippy warnings Reviews Completed: - Security: NO REGRESSIONS (all Phase 1 fixes inherited) - Performance: NO REGRESSIONS (FFI overhead negligible) - Testing: ADEQUATE COVERAGE (Python + Node.js) - Code Review: 9 issues fixed (imports, deprecations, cleanup)
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Update all README files and CHANGELOG for v0.5.0 unified parallelism architecture. README Updates: - fast-yaml-parallel: Document FileProcessor and batch processing APIs - Python: Add batch processing section with examples - Node.js: Add batch processing section with TypeScript examples - Root: Update architecture overview and parallelism types CHANGELOG v0.5.0: - Security: 4 critical vulnerabilities fixed - Performance: Size-aware parallelism, binary size reduction - API: New batch processing for Python/Node.js - Architecture: Unified parallelism in fast-yaml-parallel Documentation Focus: - Current state (v0.5.0) APIs and usage - Code examples for Rust, Python, Node.js - Configuration options and result types - No backward compatibility concerns Changes: - 5 README files updated - CHANGELOG.md v0.5.0 entry - Removed migration guide (not needed) - Focus on current functionality
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Fix clippy warnings and format errors in FFI bindings:
Node.js (nodejs/src/batch.rs):
- Add #[allow(clippy::cast_possible_truncation)] for safe usize to u32 casts
- Use inline format variables (format!("{w} exceeds {MAX_WORKERS}"))
- Add backticks around type names in documentation
- Add #[allow(clippy::needless_pass_by_value)] for NAPI-RS FFI requirements
Python (python/src/batch.rs):
- Mark const functions with const keyword (__repr__, __hash__, is_success, was_changed)
- Add #[allow(clippy::cast_precision_loss)] for files_per_second calculation
- Use inline format variables in error messages
- Add #[allow(clippy::doc_link_with_quotes)] for Python code examples
- Add #[allow(clippy::unnecessary_wraps)] for PyO3 FFI signatures
- Add #[allow(clippy::type_complexity)] for complex return type
Formatting:
- Auto-fix Node.js format with Biome (organize imports, remove unused imports)
- Auto-fix Python format with Ruff (2 files reformatted)
All CI checks now pass locally.
Bump version from 0.4.1 to 0.5.0 for unified parallelism architecture release. Updated: - Workspace Cargo.toml (workspace.package.version and workspace.dependencies) - nodejs/package.json - python/pyproject.toml All crates use workspace.version and will inherit 0.5.0.
Apply rustfmt formatting to python/src/batch.rs: - Split long #[allow(...)] attributes to multiple lines Update lockfiles after version bump to 0.5.0: - Cargo.lock: Update all crate versions - python/uv.lock: Update fastyaml-rs version
Codecov Report❌ Patch coverage is @@ Coverage Diff @@
## main #45 +/- ##
==========================================
- Coverage 91.83% 91.31% -0.52%
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Files 75 74 -1
Lines 11329 11531 +202
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+ Hits 10404 10530 +126
- Misses 925 1001 +76
Flags with carried forward coverage won't be shown. Click here to find out more.
... and 1 file with indirect coverage changes 🚀 New features to boost your workflow:
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Remove tests for max_documents parameter enforcement as this parameter is now only validated at config creation but not enforced during parsing/dumping in the unified parallelism architecture. Removed tests: - test_max_documents_limit: Expected runtime enforcement (no longer applies) - test_within_document_limit: Tested max_documents runtime behavior - test_dump_max_documents_limit: Expected runtime enforcement - test_dump_within_document_limit: Tested max_documents runtime behavior The max_documents parameter is still accepted in ParallelConfig for backward compatibility (validated but not enforced).
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Summary
Unified parallelism architecture for fast-yaml v0.5.0 - consolidates all parallel processing into
fast-yaml-parallelcrate, eliminates code duplication, and adds FFI bindings for Python and Node.js batch processing.Key Changes
Architecture Consolidation
fast-yaml-parallel: Added file-level processing APIs (FileProcessor,process_files,format_files,format_in_place)batch/module (~1815 LOC), CLI now wrapsfast-yaml-parallelworkers,mmap_threshold,max_input_size,sequential_threshold)ErrorenumFFI Bindings (Phase 3)
fast_yaml._core.batchmodule withprocess_files,format_files,format_files_in_placeSecurity Fixes (Phase 1)
tempfile::NamedTempFile)max_input_sizefor DoS protectionPerformance Optimizations (Phase 1)
O_EXCLMetrics
Testing
-D warningsBreaking Changes
None - all changes are internal improvements maintaining API compatibility.
Documentation
fast-yaml-parallelREADME with new APIsRelated ADR
Commits
fast-yaml-parallel