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ChuckandClaude Opus 5
9b522d412c
* fix(store): gate the git-pull update path `install_plugin` gates every route that re-downloads, `_reinstall_with_rollback` included. `update_plugin` has one branch that re-downloads nothing: a git checkout pulls in place, installs dependencies, and returns True. A pull could therefore deliver a manifest flooring above this core and nothing would notice until the plugin failed to load — which surfaces as one line in the journal and a display that silently stopped appearing. Checked after the pull rather than before it, for the same reason `_install_plugin_impl` checks after the download: the registry carries no compatibility field, so the incoming floor is only knowable once the new commit is on disk. Undone with `git reset --hard` to the pre-pull commit rather than by removing the directory. This is a live checkout, the old commit is still in the object store, and the reset leaves the user on the exact version they were already running — the same promise `_reinstall_with_rollback` makes, reached by the means this path actually has, with no window where the plugin directory does not exist. An unreadable manifest allows: it is not evidence of a floor. Scope, stated plainly: monorepo plugins install as archives and update through `_reinstall_with_rollback`, so they were already gated. Only registry entries with no `plugin_path` reach this branch. It is closed anyway because the sunset rule in the plugins repo's `08-shared-sports-code.md` names, as condition 3, that the core enforces the floor "at install/update time" — and B6 rests on that being true rather than merely written down. `install_from_url` is still ungated; the tests say so rather than letting the next reader assume otherwise. Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_014RRtqXDCnvnY6EQwhT5CV9 * fix(store): do not pull what the gate cannot un-pull Review of the gate found a data-loss path it had introduced, plus two smaller scope errors. All three from CodeRabbit on #508. **The stash failure was load-bearing and was not treated as one.** update_plugin stashes local changes before pulling; when that stash failed or timed out it logged a warning and pulled anyway. That was harmless while nothing ever undid a pull. It is not harmless now: the gate's rollback is `git reset --hard`, which discards uncommitted tracked edits -- exactly the edits the stash existed to protect. A pull does not refuse on a dirty tree as long as the incoming commit touches other files, so the sequence completed silently: pull succeeds, gate refuses, reset takes the user's work with it. update_plugin now returns before pulling unless the tree was already clean or was successfully stashed. Refusing costs an update in a case that had already gone wrong; the alternative costs data. That also makes `--hard` safe by construction in _gate_pulled_commit, and its comment now says so rather than observing it in passing. Pinned by test_a_failed_stash_stops_the_update_before_pulling, which writes a local edit, forces the stash to fail, and asserts both that HEAD did not move and that the edit is still on disk. Verified it bites: with the new guard removed the file comes back as `class P: pass`, the edit gone. **_HAS_GIT could take the module down instead of skipping it.** With no git on PATH, subprocess.run raises FileNotFoundError, and this runs at import time -- before skipif can act, so the whole file errors rather than skipping. Now catches OSError. **The doc overclaimed the gate's reach.** It said the floor is enforced on "every route that installs or updates" while the same passage notes install_from_url is ungated. Both spots now scope the claim to registry-managed installs and the two supported update paths, and name the sideload exception. Full suite 3720 passed, 6 skipped. Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_014RRtqXDCnvnY6EQwhT5CV9 --------- Co-authored-by: Claude Opus 5 (1M context) <noreply@anthropic.com>
LEDMatrix Documentation
This directory contains guides, references, and architectural notes for the LEDMatrix project. If you are setting up a Pi for the first time, start with the project root README — it covers hardware, OS imaging, and the one-shot installer. The pages here go deeper.
I'm a new user
- GETTING_STARTED.md — first-time setup walkthrough
- WEB_INTERFACE_GUIDE.md — using the web UI
- PLUGIN_STORE_GUIDE.md — installing and managing plugins
- WIFI_NETWORK_SETUP.md — WiFi and AP-mode setup
- TROUBLESHOOTING.md — common issues and fixes
- SSH_UNAVAILABLE_AFTER_INSTALL.md — recovering SSH after install
- CONFIG_DEBUGGING.md — diagnosing config problems
- LOW_MEMORY_BOARDS.md — Pi Zero 2 W / 3B+ / 1GB Pi 4 memory limits
I want to write a plugin
Start here:
- PLUGIN_DEVELOPMENT_GUIDE.md — end-to-end workflow
- PLUGIN_QUICK_REFERENCE.md — cheat sheet
- PLUGIN_API_REFERENCE.md — display, cache, and plugin-manager APIs
- PLUGIN_ERROR_HANDLING.md — error-handling patterns
- DEV_PREVIEW.md — preview plugins on your dev machine without a Pi
- EMULATOR_SETUP_GUIDE.md — running the matrix emulator
Going deeper:
- ADVANCED_PLUGIN_DEVELOPMENT.md — advanced patterns
- PLUGIN_ARCHITECTURE_SPEC.md — original plugin-system design spec (historical; see its banner for what has drifted)
- PLUGIN_DEPENDENCY_GUIDE.md / PLUGIN_DEPENDENCY_TROUBLESHOOTING.md
- PLUGIN_WEB_UI_ACTIONS.md (+ example JSON)
- PLUGIN_CUSTOM_ICONS.md
- PLUGIN_REGISTRY_SETUP_GUIDE.md (+ registry template)
- STARLARK_APPS_GUIDE.md — Starlark-based mini-apps
- widget-guide.md — widget development
- ADAPTIVE_LAYOUT.md — render legibly on any panel size (opt-in font/layout scaling)
- plugin-safety-harness.md — test a plugin across every screen and matrix size
Configuring plugins
- PLUGIN_CONFIG_QUICK_START.md — minimal config you need
- PLUGIN_CONFIGURATION_GUIDE.md — schema design
- PLUGIN_CONFIGURATION_TABS.md — multi-tab UI configs
- PLUGIN_CONFIG_ARCHITECTURE.md — how the config system works
- PLUGIN_CONFIG_CORE_PROPERTIES.md — properties every plugin honors
Advanced features
- ADVANCED_FEATURES.md — Vegas scroll, on-demand display, cache management, background services, permissions
- FONT_MANAGER.md — font system
- SKIN_SYSTEM.md — skin architecture for sports scoreboards
- CREATING_SKINS.md — writing and validating a skin
Reference
- CONFIG_REFERENCE.md — every key in config.json and config_secrets.json
- REST_API_REFERENCE.md — all web-interface HTTP endpoints
- PLUGIN_API_REFERENCE.md — Python APIs available to plugins
- DEVELOPER_QUICK_REFERENCE.md — common dev tasks
- PLUGIN_IMPLEMENTATION_SUMMARY.md — what the plugin system actually does
Contributing to LEDMatrix itself
- DEVELOPMENT.md — environment setup
- HOW_TO_RUN_TESTS.md — running the test suite
- MULTI_ROOT_WORKSPACE_SETUP.md — multi-repo workspace
- MIGRATION_GUIDE.md — breaking changes between releases
- SPORTS_UNIFICATION.md — how the sports scoreboard base classes are organized
Archive
docs/archive/ holds older guides that have been superseded or describe
features that have been removed. They are kept for historical context and
git history but should not be relied on.
Contributing to the docs
- Markdown only, professional tone, minimal emoji.
- Prefer adding to an existing page over creating a new one. If you add a new page, link it from this index in the section it belongs to.
- If a page becomes obsolete, move it to
docs/archive/rather than deleting it, so links don't rot. - Keep examples runnable — paths, commands, and config keys here should match what's actually in the repo.