Add cargo xtask gen-shape-db command that walks font directories,
rasterizes glyphs at 32x32 via fontdue, computes pHash, and outputs
build/glyph-shapes.json.
Implementation details:
- Fontdue integration for TrueType/OpenType font loading
- 32x32 bitmap rasterization with centering
- DCT-based pHash computation (32x32 DCT → 8x8 low-freq → median threshold)
- Character frequency data for collision resolution
- Deduplication by (phash, char) pairs
- Cross-character collision handling (keep higher-frequency char)
- Sorted output by pHash ascending
Artifacts:
- build/frequency.json: Character frequency rankings
- build/README.md: Command documentation and usage
Acceptance criteria:
- ✅ cargo xtask gen-shape-db --fonts <dir> produces valid JSON
- ✅ Deterministic output (byte-identical on same inputs)
- ✅ Fontdue integration and 32x32 rasterization
- ✅ pHash computation via DCT
- ⚠️ No system fonts for full integration test (documented)
Closes: pdftract-2aq0
Add dual MIT OR Apache-2.0 licensing at repo root with proper copyright
notices. Configure all workspace and non-workspace crates to declare the
license. Wire license files into Python wheels and Docker images.
Files added:
- LICENSE-MIT: MIT License with "Copyright (c) 2026 Jed Cabanero"
- LICENSE-APACHE: Apache License 2.0 (verbatim from apache.org)
Files modified:
- Cargo.toml: Updated authors to "Jed Cabanero <me@jedcabanero.com>"
- crates/pdftract-py/pyproject.toml: Added license-files to maturin config
- crates/pdftract-cer-diff/Cargo.toml: Added license.workspace = true
- xtask/Cargo.toml: Added license = "MIT OR Apache-2.0"
- fuzz/Cargo.toml: Added license = "MIT OR Apache-2.0"
- Cargo-dist.toml: Created to include license files in binary archives
- notes/pdftract-aawrz.md: Verification note
Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
- Fix typo: "scific_paper" -> "scientific_paper" in fixture path
- Fix xtask path resolution: use relative path ".." to access workspace root
- Fix xtask format string: remove unused profile_name placeholder
- Add workspace exclusion to xtask/Cargo.toml for standalone build
These are minor improvements to the existing per-profile README documentation
that was already created in commit 8b5dd4f.
Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
