Convert from Homebrew Formulae to Casks for font installation

Formulae can't install to ~/Library/Fonts/ due to Homebrew sandboxing.
Casks have a built-in `font` artifact that handles this automatically.

- Replace Formula/ with Casks/ directory
- Rewrite generator to produce cask files instead of formulae
- Add .ttc (TrueType Collection) support
- Update all tests for cask format
- Update CLI and documentation
- Fonts with no installable files (TTF/OTF/TTC) are skipped

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

2026-03-07 21:38:59 -06:00

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CLAUDE.md

This file provides guidance to Claude Code (claude.ai/code) when working with code in this repository.

What This Is

A Homebrew tap for custom fonts. Users brew tap and then brew install --cask font-<name>. The repo contains font assets in font_files/ and generated Ruby cask files in Casks/.

Commands

# Add or update a font (cleanup + cask generation + tests + brew audit)
uv run add-font <path_or_name>
uv run add-font <path_or_name> --no-test --no-audit

# Run tests
uv run pytest tests/ -v --tb=short

# Run a single test file
uv run pytest tests/test_font_structure.py -v

# Run tests for a specific font
uv run pytest tests/ -v -k "font-acrylic-hand"

# Regenerate all casks (without the full add-font flow)
python3 .fontfoldercleanup/create_homebrew_formula.py

# Reorganize font folders only
python3 .fontfoldercleanup/cleanup_font_folders.py --path font_files

Architecture

font_files/font-<name>/ — Each font has exactly 4 subdirs: ttf/, otf/, web/, other_files/. No other top-level files allowed.
Casks/font-<name>.rb — Generated Ruby cask files. Never edit by hand. Edits go in .fontfoldercleanup/create_homebrew_formula.py.
tap_cli/main.py — The add-font CLI entry point. Copies font to font_files/, runs cleanup script, runs cask generator, then runs tests and brew audit.
.fontfoldercleanup/cleanup_font_folders.py — Sorts loose font files into ttf/, otf/, web/, other_files/ subdirs.
.fontfoldercleanup/create_homebrew_formula.py — Scans font_files/font-* and writes one cask .rb per font in Casks/.
tests/ — Parametrized pytest suite. Tests validate: folder structure, cask existence, cask content (paths, identifier), no orphan casks, no duplicates.
To Sort/ — Staging area for new downloads not yet processed.

Cask Naming Convention

Cask files use kebab-case identifiers matching the font folder name: font-<name>.

font-acrylic-hand → cask "font-acrylic-hand" do

Fonts are installed to ~/Library/Fonts/ automatically via the font artifact.

Key Constraints

Python 3, standard library only (pathlib, shutil, argparse, re). pytest is the sole dependency.
Casks download from http://clancy.genet-godzilla.ts.net:8085/Fonts/homebrew-fonts/archive/main.tar.gz and expect the archive to unpack as homebrew-fonts/.
CI runs uv run pytest on push/PR to main, plus brew audit on macOS (non-blocking).
PROJECT.md is the canonical project description. When updating project rules, update PROJECT.md first, then sync .cursorrules, .github/copilot-instructions.md, and .claude/skills/project-context/SKILL.md.

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