JLCPCBPartsManager defaulted db_path to a "data/" directory computed
relative to __file__, which fails with read-only filesystems when the
package is installed to a system-managed prefix (e.g. /nix/store, an
immutable container image, or /usr/lib). The same pattern in
download_jlcpcb.py would silently scatter the ~1.5 GB JLCPCB cache
inside the install tree even when it is writable.
The original integration plan (docs/archive/JLCPCB_INTEGRATION_PLAN.md)
called for a per-user database under ~/.kicad-mcp/. This change moves
the default to the platform-appropriate user data directory by adding
a new PlatformHelper.get_data_dir() helper that mirrors the existing
get_config_dir() / get_cache_dir() conventions:
- Linux: XDG_DATA_HOME/kicad-mcp or ~/.local/share/kicad-mcp
- macOS: ~/Library/Application Support/kicad-mcp
- Windows: %USERPROFILE%\.kicad-mcp\data
Both JLCPCBPartsManager and download_jlcpcb.py now resolve their
database paths through this helper. ensure_directories() and
detect_platform() include the new directory. Unit tests parallel to
the existing config_dir/cache_dir cases cover platform-appropriate
paths and the relative-XDG_DATA_HOME edge case.
Mechanical application of the `.gitattributes` rules from the prior commit.
All 50 files differ only in line endings — verified by
`git diff --cached --ignore-all-space` being empty.
Before: main had 42 CRLF + 27 LF Python files plus mixed-ending in YAML,
templates, and shell scripts. After: every text file is LF (except the
Windows-native *.ps1, *.bat scripts which remain CRLF per gitattributes).
This eliminates the noisy-diff failure mode seen in PR #102, where a
small logic change produced a 918-line diff due to whole-file CRLF→LF
conversion.
Add type annotations to all previously untyped functions and remove 9
suppressed error codes (call-arg, assignment, return-value, operator,
has-type, dict-item, misc, list-item, annotation-unchecked) by fixing
the underlying type issues.
Add [[tool.mypy.overrides]] with ignore_missing_imports for KiCAD-specific
modules (pcbnew, sexpdata, skip, cairosvg, kipy, PIL) so the pre-commit
mypy hook passes in its isolated venv. Add types-requests and pytest to
additional_dependencies in .pre-commit-config.yaml.
Also fixes several real bugs uncovered by stricter checks: incorrect static
calls to instance methods in swig_backend, wrong return type on get_size,
missing value param in BoardAPI.place_component, variable shadowing in
kicad_process.py, unqualified LibraryManager reference in kicad_interface,
and missing top-level Path import.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Add isort configuration (profile=black, line_length=100) to pyproject.toml,
add isort pre-commit hook, and auto-sort imports across all Python source files.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Add [tool.black] config to pyproject.toml and Black hook to
.pre-commit-config.yaml (rev 26.3.1), then auto-format all Python
source and test files with line-length=100, target-version=py310.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
The JLCSearch API (jlcsearch.tscircuit.com) /components/list.json
endpoint ignores the offset parameter, returning the same 100 parts
on every request. This caused download_jlcpcb_database to loop
indefinitely, importing duplicate data for hours while blocking the
single-threaded Python process.
- Add download_jlcpcb.py: standalone script that downloads the
pre-built jlcparts database from yaqwsx/jlcparts GitHub Pages
(~1GB compressed, 7M+ parts, completes in ~4 minutes)
- Fix FTS search: add prefix wildcards to search terms so partial
MPN matches work (e.g. "BQ25895" now finds "BQ25895RTWR")
Implements full JLCPCB parts catalog integration alongside existing local library search,
giving users two complementary approaches for component selection:
1. Local Symbol Libraries (PR #25)
- Search JLCPCB libraries installed via KiCad PCM
- Pre-configured symbols with footprints
- Works offline, no API needed
2. JLCPCB API Integration (NEW)
- Complete 100k+ parts catalog access
- Real-time pricing and stock information
- Basic/Extended library type identification
- Cost optimization and alternative suggestions
- Package-to-footprint mapping
New Features:
- download_jlcpcb_database: Download complete parts catalog to local SQLite DB
- search_jlcpcb_parts: Parametric search with pricing, stock, library type filters
- get_jlcpcb_part: Detailed part info with price breaks and footprint suggestions
- get_jlcpcb_database_stats: Database statistics and status
- suggest_jlcpcb_alternatives: Find cheaper/available alternatives
Implementation:
- Python API client (commands/jlcpcb.py) - JLCPCB API authentication and data fetching
- Parts database manager (commands/jlcpcb_parts.py) - SQLite storage and search
- TypeScript MCP tools (tools/jlcpcb-api.ts) - User-facing tool definitions
- Comprehensive documentation (docs/JLCPCB_USAGE_GUIDE.md)
Database Features:
- ~100k parts with descriptions, pricing, stock levels
- Full-text search on descriptions and part numbers
- Parametric filtering (category, package, manufacturer, library type)
- Package-to-footprint mapping for KiCad
- Intelligent alternative suggestions
Setup Requirements:
- JLCPCB_API_KEY and JLCPCB_API_SECRET environment variables
- One-time database download (~5-10 minutes, 42MB)
- requests library (already in requirements.txt)
Benefits:
- Cost optimization (identify Basic parts = free assembly)
- Real-time stock checking
- Complete catalog access
- Works offline after initial download
- Complements local library search
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>
