Files
vectorcraft/crates/plugins
Louise FoxandClaude Opus 5.5 79cb38f678 Plug-ins: heavy filters, allowed at install and run in the background (G17)
A filter plug-in gets 50 M instructions and a minute for each run.
Filters that order a plotter's paths, pack shapes or run a simulation
need minutes, and the app shouldn't freeze while they compute.

A filter's manifest may now ask for "budget": "heavy" (Budget): each run
gets HEAVY_FUEL (1 G instructions) and HEAVY_WALL_TIME_MS (300 s). Only a
filter may ask. plugin.install refuses such a filter without allowHeavy:
true, and plugin.inspect returns the entry a module would have without
installing it. Install Plug-in… and File › Open ask the user and install
on OK; the plug-in store keeps the answer, and folder loads skip heavy
filters with a note, since they ask nobody.

The app runs a heavy filter on a thread of its own (plugin_runs), not in
Background Save's queue, with the status bar and a progress window
(Cancel, Continue in Background) that it shares with Background Export
(export_progress::window). FilterRun splits plugin.run: prepared on the
session, run on any thread, its output handed in, and the next
plugin.run with the same params applies that output instead of running
the plug-in again, so the edit stays one guarded, journaled command. A
result whose document or plug-in changed meanwhile is dropped, and the
status bar says to run it again. A cancelled plug-in run is now
EngineError::Cancelled.

What a filter keeps with the document (#3720) goes with the run: it is
given _context.documentData when the run is prepared, and the
documentData of its output is applied with its objects, in the same undo
step, when the run is handed in (FilterRun::finish).

Tests: plugins/tests/abi.rs (100 M loop steps out of a light budget,
within a heavy one; folders skip heavy filters), manifest.rs, engine
tests_plugins.rs (consent, inspect, the store, hand-in, a handed-in
run's document data, cancel) and
ui-egui tests_plugin_runs.rs (installing asks, no Preview, a background
run as one undo step, a stale result kept out, the progress window).
CRAFT_UI_HEAVY_FILTER_WASM=<folder> writes a test filter to try in the
app. Its strings and messages have rows in each complete catalog
(COMPLETE_MESSAGES).

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01HhvnnnD5fTFupK8WWq35un
2026-10-23 08:18:47 +07:00
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