aiongg
f3bb7a9f30
* CI: dev profile keeps line tables for workspace crates and no debug info for dependencies * Control server tests: persistent_requests_and_slow_replies_outlive_the_idle_read_timeout no longer races the idle timeout Each request (and the closing half-shutdown) reaches the socket before the worker reads, so on a slow machine only the reply waits outlast the 100 ms idle timeout, as the test intends. The idle test sends its input the same way, and the no-frames test allows 5 s instead of 2 s to give up. * CI: one integration-test binary per crate Each crate's tests/*.rs become modules of tests/it/main.rs (51 test files into 13 binaries, plus 6 that stay their own). Inner #![cfg] attributes move to the mod lines. Files that change state for the whole process keep a binary of their own: codecs jxl_tail_heap and raw sr2_heap (dhat global allocator), gpu shutdown, shutdown_first and memory, ui-egui shutdown. Docs, comments and the GPU probe name the new paths and targets (--test it <module>::); the CI report names an it binary's skips after the crate. * CI: tests under nextest, doctests apart, one wasm check xtask ci runs the tests with cargo nextest run --lib --bins --tests when cargo-nextest is installed, else cargo test with the same targets and a one-line notice; doctests run after them with cargo test --workspace --doc. The heif and hardware GPU steps use the same runner. Examples stay out of the test build (clippy --all-targets still checks them). Concurrent tests under nextest follow the RUST_TEST_THREADS cap (NEXTEST_TEST_THREADS). The wasm check is one cargo check --keep-going over the same crates, and clippy runs with --keep-going. * CI: tests run under cargo test by default, nextest with LIGHTCRAFT_NEXTEST=1 (per-process scene cache)
lightcraft-meta (L1)
Photo metadata: EXIF, XMP (read + write), IPTC-IIM, and the containers that carry them.
API
| Function | Purpose |
|---|---|
read_exif(&[u8]) -> Metadata |
TIFF-structured Exif block (whole TIFF/DNG/raw file, or JPEG APP1 payload with/without Exif\0\0). try_read_exif reports header errors. |
from_tiff(&Tiff) -> Metadata |
Same, from an already parsed stream (used by lightcraft-raw). |
embedded(&[u8]) -> Embedded |
Sniffs JPEG / PNG / WebP / TIFF and returns the Exif, XMP (+ extended XMP), ICC and IPTC blocks. jpeg_segments, png_chunks, webp_chunks are the per-container walkers. |
parse_xmp(&str) -> Result<XmpData> |
Metadata + the opaque lc:settings JSON + every property (prefix:name, structs flattened as a:b/c:d). |
write_xmp(&Metadata, Option<&str>) -> String |
Complete <?xpacket?> packet; the second argument is LightCraft's full develop settings JSON. |
parse_iptc(&[u8]) -> Metadata |
IIM record 2: title (2:5), keywords (2:25), by-line (2:80), copyright (2:116), caption (2:120), date/time created (2:55/2:60). |
extract(&[u8]) -> Metadata |
Everything for a whole file. Precedence: EXIF → IPTC fills gaps → XMP overrides user fields (rating, label, title, caption, artist, copyright, keywords, GPS) and fills the rest. |
Metadata carries camera (make, model, serial, software), lens (make, model, serial, specification), capture
(date-time with UTC offset and milliseconds, exposure time, f-number, ISO incl. extended ISO, focal length and
35 mm equivalent, flash, exposure bias, program, metering, white balance), orientation, GPS, dimensions and the
user fields (artist, copyright, title, caption, keywords, hierarchical keywords, rating −1…5, colour label).
XMP namespaces
Written: dc, xmp, photoshop, exif, exifEX, tiff, lr (hierarchicalSubject) and ours,
lc = http://ns.lightcraft.app/lc/1.0/ (lc:settings, an opaque JSON string). Reading canonicalises
prefixes by namespace URI, handles attribute and element forms, rdf:Seq/Bag/Alt (x-default first),
rdf:parseType="Resource" and nested-description structs, predefined and numeric entities. Nesting depth
and node count are limited.
Robustness
No panics on malformed input: proptests feed random bytes to every container walker and random text to the XMP parser; truncation tests cut a sample JPEG at every byte.
Sources
CIPA DC-008 (Exif 2.32), TIFF 6.0, Adobe DNG 1.7 (tag numbers), ISO 16684-1 / Adobe XMP Specification
Parts 1–3 (packet, RDF serialisation, standard schemas, JPEG extended XMP), IPTC-IIM 4.2 and the IPTC Photo
Metadata Standard, ITU-T T.81 (JPEG markers), ICC.1 (APP2 embedding), PNG Specification 3rd ed. (eXIf,
iTXt), the WebP RIFF container specification, Adobe Photoshop File Format Specification (image resource
blocks). XML parsing: quick-xml (MIT). No third-party metadata code was consulted.