* Use chrono for UTC/calendar conversion instead of hand-rolled copies Replaces the hand-rolled civil_from_days and Day::to_days in crates/ai-core/src/history/report.rs with chrono, added as a workspace dependency (std-only, so ai-core still compiles for wasm). The day/month grouping, ISO and CSV timestamps and the Day/Month display are byte-identical and pinned by the existing tests. AGENTS.md now says time goes through chrono. Follow-up to storytold/cadcraft#1785 * history: preserve out-of-range conversion failure in civil_from_days civil_from_days used `i32::try_from(..).unwrap_or(0)` before calling NaiveDate::from_num_days_from_ce_opt, so a CE day count past i32 (e.g. from Day::from_days(i64::MAX)) passed a valid day 0 to chrono and read as 0000-12-31 instead of the 0000-01-01 fallback the None arm gives for every other out-of-range date. Convert with `.ok().and_then(..)` so both the integer-conversion and NaiveDate-construction failures share the one fallback. Regression test covers i64::MAX and i64::MIN. Doc comments on the chrono-touched to_days/from_days/civil_from_days now state the out-of-range behaviour (0 / 0000-01-01) for the docstring gate. * Convert every i32 year, not only chrono's range Day holds any i32 year, but NaiveDate stops near ±262143, so years like 262144 read as 0 / 0000-01-01. The Gregorian calendar repeats every 400 years: chrono now converts the day within its cycle and whole cycles are added back, in both directions. Values match the pre-chrono formula (tested for 262144, -262145, i32::MAX and i32::MIN). Nonexistent days still read as 0, and day counts whose year doesn't fit i32 still read as 0000-01-01. * Name the 400-year range extension as the one exception to the time rule The rule said never to hand-roll calendar math, but the range fix (shifting by whole 400-year Gregorian cycles so dates past chrono's year range keep their old output) is cycle arithmetic, so the rule and the code disagreed. The rule now names that exception: the library still computes month, day and time, and only whole cycles are carried in the year. * Say the library computes month and day; time-of-day is plain arithmetic Narrows the range-extension wording: the date library computes the calendar fields, and splitting seconds into hours, minutes and seconds is ordinary arithmetic, which is what the code does.
Craft App Libraries
This repo contains libraries used by the various Craft Apps. It's a Rust monorepo workspace, and the libraries can be included by any Craft Apps that need them.
In the future this may grow to include non-Rust library code.
If any libraries grow beyond Craft App usage, eg. RAW format support, they may be promoted out and into their own libraries for the broader ecosystem to take advantage of.
Layout
A Cargo workspace (edition 2024, resolver 3). Each library is a crate under crates/<name>, named
craft-<name>, with version, edition, license and repository inherited from the workspace
(license.workspace = true, and so on) and [lints] workspace = true. Register each crate in
[workspace.dependencies] in the root Cargo.toml.
Apps depend on a crate by git:
craft-<name> = { git = "https://github.com/storytold/craft-libs", rev = "<commit>" }
Libraries
-
craft-platform: optional native dialog lifecycle, Linux/BSD desktop appearance observation and browser download ownership; application policy stays in the apps. -
craft-ai-core: the data model and contract for AI in the Craft Apps (connections, models, tools, requests, jobs, consent, history, route spec). Pure, no I/O, wasm-safe. Contract in docs/ai-shared-layer.md. -
craft-pdf: independently optional PDF parsing, interpretation, rasterization and guarded authoring. Apps retain layout, fonts, editing and export policy; writer-only consumers do not enable the shared reader. -
craft-atomic: Crash-safe atomic file writing and replacement with same-directory staging, directory fsync, AppleF_FULLFSYNCfallback, transient lock backoff, and fault injection for the Craft suite. -
craft-cms: pure-Rust ICC v2/v4 colour management: profile parsing and writing, transforms, rendering intents, black point compensation, soft proofing, gamut checks, 3D LUTs and built-in profiles (sRGB, Display P3, synthetic coated CMYK and others). -
craft-docpath: decides whether a path orfile:URL stored in a document may be opened. Paths stored in documents are followed only when they are local or on the document's own network share; other network paths, device paths and non-file URLs are refused. -
craft-i18n: translations over the embedded craft-i18n catalogs: lookup with fallback (pt-br→pt→ English), plurals, language names, the system locale and a pseudo locale. The catalogs stay a fully optional build input; apps keeptl!and their language setting. -
craft-media: bit-level I/O (bitstream), clean-room MP4/MOV (isobmff) and Matroska/WebM (matroska) demuxers and muxers, from FilmCraft, and an ISO BMFF box reader. Containers only; codecs stay in each app. -
craft-print: PDF submission to CUPS and Windows, printer discovery, duplex/copies/colour and driver preferences. PDF generation stays in each app. -
craft-quit: native macOS quit, egui close handling and an optional app menu. Unsaved-document decisions and save prompts stay in each app. -
craft-settings:config.tomlsettings storage for every app: platform folders, portable mode and overrides, atomic saves while running, backup, damaged-file recovery and schema migrations. Policy in docs/settings-storage.md. -
craft-ui: SVG catalogs, icon buttons, tabs, pane controls, transactional docking, print settings and theme helpers for egui frontends; assets, themes, localization and command handling stay in each app. Requires Rust 1.95 or later. -
Shared UI component audit: source inventory, extraction priorities and compatibility boundaries across the Craft suite.
-
Theme infrastructure: eight-app comparison and the small shared widget-state styling boundary.
-
Panel docking: validated panel moves, floating groups, workspace adapters and an optional egui docking surface.
License and credits
craft-libs is dual-licensed under MIT or Apache-2.0, at your option. Copyright (c) 2026 ArtCraft Team and the craft-libs contributors. Required notices are in NOTICE.
Bundled fonts, icons, images and other assets keep their own open licenses; each one is listed with its author, source and license in ATTRIBUTION.md.