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Package the models on every platform, not just the phone

Browse Source 
The Android bundling landed the weights under that platform's asset directory,
which was the wrong home the moment a second packager wanted them. `makepkg -si`
produced a desktop install with no model at all — the same "no face model is
installed" the phone used to show, for the same reason: nothing put the files
anywhere the app looks.

So `models/face/` at the root is the one copy, and both packagers read it:
assemble-apk.sh bundles it as APK assets, and the PKGBUILD installs it to
/usr/share/darkroom/models. Both refuse an LFS pointer rather than shipping a
130-byte file that fails inside the graph loader on a user's machine.

`face_models` now searches three places, most specific first: the account's own
directory, the shared user directory, then $XDG_DATA_DIRS. So a packaged pair is
found automatically and a pair the user placed by hand still outranks it — which
is what keeps a deliberate choice of weights from being overridden by an
upgrade.

$XDG_DATA_DIRS rather than a hard-coded /usr/share: that is the variable a
distribution, a prefix install or a Nix-style store already sets to say where
its data went, and its documented default is exactly the two paths that would
otherwise have been hard-coded. Empty on Android, which has no such directories
— there the APK's copy is unpacked into the shared user directory instead,
because an asset inside a package is not a path anything can read from.

Verified: the APK still carries both models at assets/models/, the PKGBUILD
parses and installs from the new path, 467 tests pass.

Includes the pkgver 0.6.0 → 0.7.0 bump that was already sitting uncommitted in
the working tree.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
This commit is contained in:
dtourolle
2026-08-27 18:05:23 +02:00
co-authored by Claude Opus 5
parent 725f7bf77f
commit 2d95807542
9 changed files with 101 additions and 45 deletions
Download Patch File Download Diff File Expand all files Collapse all files
apps/darkroom-android/android/assets/README.md
-25
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@@ -1,25 +0,0 @@
# APK assets
`models/` holds the two face models, in LFS. `docker/android/assemble-apk.sh` copies them into the
APK and `android_main` unpacks them to the shared models directory on first launch, which is the only
way a phone can be handed a model at all — app-private storage has no user-reachable route into it,
and the in-app fetch docs/faces.md §2.2 specifies is unbuilt.
models/scrfd_500m_640.onnx 2.5 MB
models/arcface_mbf_b1.onnx 13 MB
**A clone without git-lfs gets a ~130-byte pointer file where each model should be.** `assemble-apk.sh`
checks for exactly that and refuses, rather than bundling the pointer and failing inside tract on the
device — the same guard `dr-segment`'s build script applies to `yolo26n-seg.onnx`. Fix it with
`git lfs pull`.
These are not what InsightFace ships. They came from `buffalo_sc.zip` and `buffalo_s.zip` on the
InsightFace v0.7 release with their input dimensions pinned, because tract cannot parse either graph
while they are dynamic:
./tools/fix-face-model-shapes.sh det_500m.onnx models/scrfd_500m_640.onnx --input input.1=1,3,640,640
./tools/fix-face-model-shapes.sh w600k_mbf.onnx models/arcface_mbf_b1.onnx --dim None=1
The weights carry a non-commercial research-only grant. They are here because this is a private
repository and a self-installed build; they come back out before anything is published, and the
restriction binds whoever uses the app, not only the project. docs/faces.md §2.2a is the decision.
docker/android/README.md
+2 -2
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@@ -42,8 +42,8 @@ the runner host's cached registry credentials.
## Face models
`package.sh` bundles `apps/darkroom-android/android/assets/models/` into the APK, and the entry point
unpacks it on first launch. **The models are in LFS**, so a clone without `git lfs pull` has 130-byte
`package.sh` bundles `models/face/` into the APK, and the entry point unpacks it on first launch.
That directory is shared with the Arch package rather than owned by this platform. **The models are in LFS**, so a clone without `git lfs pull` has 130-byte
pointers there; the build detects that and stops rather than shipping them.
This exists because Android offers no other route to a model: the directory the app reads from is
docker/android/assemble-apk.sh
+9 -7
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@@ -155,31 +155,33 @@ cp "${DEX}" "${OUT}/staging/classes.dex"
# The face models. Android has no other route to one — app-private storage is
# not user-reachable and the in-app fetch is unbuilt (docs/faces.md §2.2a) — so
# they go in the APK and `android_main` unpacks them on first launch.
# they go in the APK and `android_main` unpacks them on first launch. The
# source is `models/face/`, shared with the Arch package rather than living
# under this one platform's directory.
#
# Through the staging directory rather than aapt2's `-A`: the .so and the dex
# already go in with `zip` below, and one mechanism for "extra files in the
# APK" is easier to follow than two.
ASSETS="${REPO}/apps/darkroom-android/android/assets"
ASSETS="${REPO}/models/face"
# Cleared first: a previous run that died between staging and cleanup would
# otherwise leave models in the APK that are no longer in the tree.
rm -rf "${OUT}/staging/assets"
if compgen -G "${ASSETS}/models/*.onnx" >/dev/null; then
if compgen -G "${ASSETS}/*.onnx" >/dev/null; then
# An LFS pointer is ~130 bytes and looks exactly like a model to `cp`. Left
# unchecked it reaches the device and fails inside tract, which reports a
# broken graph rather than a clone that needs `git lfs pull`. Same guard
# dr-segment's build script applies to yolo26n-seg.onnx, and the same
# reason.
for m in "${ASSETS}"/models/*.onnx; do
for m in "${ASSETS}"/*.onnx; do
if [[ "$(stat -c%s "${m}")" -lt 100000 ]]; then
echo "error: $(basename "${m}") is $(stat -c%s "${m}") bytes — an LFS pointer, not a model." >&2
echo " run: git lfs pull" >&2
exit 1
fi
done
mkdir -p "${OUT}/staging/assets"
cp -r "${ASSETS}/models" "${OUT}/staging/assets/"
echo " assets: $(ls "${ASSETS}/models" | tr '\n' ' ')"
mkdir -p "${OUT}/staging/assets/models"
cp "${ASSETS}"/*.onnx "${OUT}/staging/assets/models/"
echo " assets: $(ls "${ASSETS}" | grep '\.onnx$' | tr '\n' ' ')"
else
echo " assets: no face models found (face indexing will be off on the device)"
fi
docs/traceability.md
+5 -5
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@@ -38,16 +38,16 @@ _None._
| FR-CAT-11 | [`core/dr-catalog/src/dedup.rs:1`](../core/dr-catalog/src/dedup.rs#L1), [`core/dr-ingest/src/lib.rs:1`](../core/dr-ingest/src/lib.rs#L1), [`core/dr-ingest/src/lib.rs:392`](../core/dr-ingest/src/lib.rs#L392), [`core/dr-sync/src/upload.rs:40`](../core/dr-sync/src/upload.rs#L40), [`ui/dr-ui/src/import.rs:1`](../ui/dr-ui/src/import.rs#L1), [`ui/dr-ui/src/import_ui.rs:1`](../ui/dr-ui/src/import_ui.rs#L1), [`ui/dr-ui/src/lib.rs:1104`](../ui/dr-ui/src/lib.rs#L1104), [`ui/dr-ui/src/library.rs:152`](../ui/dr-ui/src/library.rs#L152), [`ui/dr-ui/src/library.rs:2128`](../ui/dr-ui/src/library.rs#L2128), [`ui/dr-ui/ui/import.slint:5`](../ui/dr-ui/ui/import.slint#L5) |
| FR-CAT-12 | [`core/dr-pipeline/src/sidecar.rs:118`](../core/dr-pipeline/src/sidecar.rs#L118) |
| FR-CAT-13 | [`core/dr-catalog/src/keywords.rs:1`](../core/dr-catalog/src/keywords.rs#L1) |
| FR-CAT-15 | [`core/dr-catalog/src/schema.rs:583`](../core/dr-catalog/src/schema.rs#L583), [`core/dr-catalog/src/trash.rs:1`](../core/dr-catalog/src/trash.rs#L1), [`core/dr-sync-nextcloud/src/lib.rs:447`](../core/dr-sync-nextcloud/src/lib.rs#L447), [`core/dr-sync/src/lib.rs:124`](../core/dr-sync/src/lib.rs#L124), [`core/dr-sync/src/scan.rs:426`](../core/dr-sync/src/scan.rs#L426), [`core/dr-sync/src/scan.rs:57`](../core/dr-sync/src/scan.rs#L57), [`core/dr-thumbs/src/lib.rs:376`](../core/dr-thumbs/src/lib.rs#L376), [`ui/dr-ui/src/collections_ui.rs:1225`](../ui/dr-ui/src/collections_ui.rs#L1225), [`ui/dr-ui/src/collections_ui.rs:1995`](../ui/dr-ui/src/collections_ui.rs#L1995), [`ui/dr-ui/src/library.rs:152`](../ui/dr-ui/src/library.rs#L152), [`ui/dr-ui/src/library.rs:169`](../ui/dr-ui/src/library.rs#L169), [`ui/dr-ui/src/library.rs:198`](../ui/dr-ui/src/library.rs#L198), [`ui/dr-ui/src/library.rs:3062`](../ui/dr-ui/src/library.rs#L3062), [`ui/dr-ui/src/library.rs:3096`](../ui/dr-ui/src/library.rs#L3096), [`ui/dr-ui/src/library_ui.rs:184`](../ui/dr-ui/src/library_ui.rs#L184), [`ui/dr-ui/src/library_ui.rs:757`](../ui/dr-ui/src/library_ui.rs#L757), [`ui/dr-ui/src/trash.rs:1`](../ui/dr-ui/src/trash.rs#L1), [`ui/dr-ui/ui/collections.slint:572`](../ui/dr-ui/ui/collections.slint#L572) |
| FR-CAT-15 | [`core/dr-catalog/src/schema.rs:583`](../core/dr-catalog/src/schema.rs#L583), [`core/dr-catalog/src/trash.rs:1`](../core/dr-catalog/src/trash.rs#L1), [`core/dr-sync-nextcloud/src/lib.rs:447`](../core/dr-sync-nextcloud/src/lib.rs#L447), [`core/dr-sync/src/lib.rs:124`](../core/dr-sync/src/lib.rs#L124), [`core/dr-sync/src/scan.rs:426`](../core/dr-sync/src/scan.rs#L426), [`core/dr-sync/src/scan.rs:57`](../core/dr-sync/src/scan.rs#L57), [`core/dr-thumbs/src/lib.rs:376`](../core/dr-thumbs/src/lib.rs#L376), [`ui/dr-ui/src/collections_ui.rs:1225`](../ui/dr-ui/src/collections_ui.rs#L1225), [`ui/dr-ui/src/collections_ui.rs:1995`](../ui/dr-ui/src/collections_ui.rs#L1995), [`ui/dr-ui/src/library.rs:152`](../ui/dr-ui/src/library.rs#L152), [`ui/dr-ui/src/library.rs:169`](../ui/dr-ui/src/library.rs#L169), [`ui/dr-ui/src/library.rs:198`](../ui/dr-ui/src/library.rs#L198), [`ui/dr-ui/src/library.rs:3095`](../ui/dr-ui/src/library.rs#L3095), [`ui/dr-ui/src/library.rs:3129`](../ui/dr-ui/src/library.rs#L3129), [`ui/dr-ui/src/library_ui.rs:184`](../ui/dr-ui/src/library_ui.rs#L184), [`ui/dr-ui/src/library_ui.rs:757`](../ui/dr-ui/src/library_ui.rs#L757), [`ui/dr-ui/src/trash.rs:1`](../ui/dr-ui/src/trash.rs#L1), [`ui/dr-ui/ui/collections.slint:572`](../ui/dr-ui/ui/collections.slint#L572) |
| FR-CAT-1a | [`core/dr-catalog/src/walk.rs:1`](../core/dr-catalog/src/walk.rs#L1), [`core/dr-types/src/lib.rs:53`](../core/dr-types/src/lib.rs#L53) |
| FR-CAT-2 | [`core/dr-catalog/src/lib.rs:1`](../core/dr-catalog/src/lib.rs#L1), [`core/dr-catalog/src/schema.rs:1`](../core/dr-catalog/src/schema.rs#L1), [`tools/traceability/src/lib.rs:479`](../tools/traceability/src/lib.rs#L479) |
| FR-CAT-3 | [`core/dr-catalog/src/jobs.rs:1`](../core/dr-catalog/src/jobs.rs#L1), [`core/dr-catalog/src/walk.rs:66`](../core/dr-catalog/src/walk.rs#L66), [`core/dr-sync/src/scan.rs:69`](../core/dr-sync/src/scan.rs#L69), [`core/dr-thumbs/src/codec.rs:1`](../core/dr-thumbs/src/codec.rs#L1), [`core/dr-thumbs/src/lib.rs:1`](../core/dr-thumbs/src/lib.rs#L1), [`ui/dr-ui/src/derived_sync.rs:1`](../ui/dr-ui/src/derived_sync.rs#L1), [`ui/dr-ui/src/import.rs:464`](../ui/dr-ui/src/import.rs#L464), [`ui/dr-ui/src/import.rs:489`](../ui/dr-ui/src/import.rs#L489), [`ui/dr-ui/src/library.rs:2604`](../ui/dr-ui/src/library.rs#L2604), [`ui/dr-ui/src/library.rs:2630`](../ui/dr-ui/src/library.rs#L2630), [`ui/dr-ui/src/library_ui.rs:171`](../ui/dr-ui/src/library_ui.rs#L171), [`ui/dr-ui/src/library_ui.rs:3624`](../ui/dr-ui/src/library_ui.rs#L3624), [`ui/dr-ui/src/library_ui.rs:4590`](../ui/dr-ui/src/library_ui.rs#L4590), [`ui/dr-ui/ui/app.slint:540`](../ui/dr-ui/ui/app.slint#L540), [`ui/dr-ui/ui/settings.slint:353`](../ui/dr-ui/ui/settings.slint#L353), [`ui/dr-ui/ui/settings.slint:72`](../ui/dr-ui/ui/settings.slint#L72) |
| FR-CAT-4 | [`core/dr-catalog/src/lib.rs:1`](../core/dr-catalog/src/lib.rs#L1), [`core/dr-catalog/src/query.rs:1`](../core/dr-catalog/src/query.rs#L1), [`core/dr-catalog/src/schema.rs:304`](../core/dr-catalog/src/schema.rs#L304), [`ui/dr-ui/src/library.rs:179`](../ui/dr-ui/src/library.rs#L179), [`ui/dr-ui/src/library.rs:1`](../ui/dr-ui/src/library.rs#L1), [`ui/dr-ui/src/library_ui.rs:1`](../ui/dr-ui/src/library_ui.rs#L1) |
| FR-CAT-5 | [`core/dr-catalog/src/keywords.rs:1`](../core/dr-catalog/src/keywords.rs#L1), [`core/dr-catalog/src/merge.rs:1`](../core/dr-catalog/src/merge.rs#L1), [`core/dr-catalog/src/rating.rs:1`](../core/dr-catalog/src/rating.rs#L1), [`core/dr-catalog/src/schema.rs:1001`](../core/dr-catalog/src/schema.rs#L1001), [`core/dr-catalog/src/schema.rs:498`](../core/dr-catalog/src/schema.rs#L498), [`core/dr-decode/src/lib.rs:285`](../core/dr-decode/src/lib.rs#L285), [`core/dr-decode/src/lib.rs:404`](../core/dr-decode/src/lib.rs#L404), [`core/dr-pipeline/src/sidecar.rs:135`](../core/dr-pipeline/src/sidecar.rs#L135), [`ui/dr-ui/src/collections_ui.rs:1578`](../ui/dr-ui/src/collections_ui.rs#L1578), [`ui/dr-ui/src/collections_ui.rs:1597`](../ui/dr-ui/src/collections_ui.rs#L1597), [`ui/dr-ui/src/collections_ui.rs:243`](../ui/dr-ui/src/collections_ui.rs#L243), [`ui/dr-ui/src/collections_ui.rs:340`](../ui/dr-ui/src/collections_ui.rs#L340), [`ui/dr-ui/src/collections_ui.rs:89`](../ui/dr-ui/src/collections_ui.rs#L89), [`ui/dr-ui/src/library.rs:3110`](../ui/dr-ui/src/library.rs#L3110), [`ui/dr-ui/src/library_ui.rs:6271`](../ui/dr-ui/src/library_ui.rs#L6271), [`ui/dr-ui/src/library_ui.rs:6282`](../ui/dr-ui/src/library_ui.rs#L6282), [`ui/dr-ui/src/library_ui.rs:628`](../ui/dr-ui/src/library_ui.rs#L628), [`ui/dr-ui/src/library_ui.rs:6295`](../ui/dr-ui/src/library_ui.rs#L6295), [`ui/dr-ui/src/library_ui.rs:6310`](../ui/dr-ui/src/library_ui.rs#L6310), [`ui/dr-ui/src/library_ui.rs:6319`](../ui/dr-ui/src/library_ui.rs#L6319), [`ui/dr-ui/ui/app.slint:485`](../ui/dr-ui/ui/app.slint#L485), [`ui/dr-ui/ui/app.slint:655`](../ui/dr-ui/ui/app.slint#L655), [`ui/dr-ui/ui/library.slint:1219`](../ui/dr-ui/ui/library.slint#L1219), [`ui/dr-ui/ui/library.slint:1222`](../ui/dr-ui/ui/library.slint#L1222), [`ui/dr-ui/ui/library.slint:18`](../ui/dr-ui/ui/library.slint#L18), [`ui/dr-ui/ui/library.slint:850`](../ui/dr-ui/ui/library.slint#L850), [`ui/dr-ui/ui/library.slint:902`](../ui/dr-ui/ui/library.slint#L902) |
| FR-CAT-6 | [`core/dr-catalog/src/collections.rs:1`](../core/dr-catalog/src/collections.rs#L1), [`core/dr-catalog/src/keywords.rs:1`](../core/dr-catalog/src/keywords.rs#L1), [`core/dr-catalog/src/lib.rs:1`](../core/dr-catalog/src/lib.rs#L1), [`core/dr-catalog/src/query.rs:1`](../core/dr-catalog/src/query.rs#L1), [`core/dr-catalog/src/rating.rs:1`](../core/dr-catalog/src/rating.rs#L1), [`core/dr-catalog/src/schema.rs:498`](../core/dr-catalog/src/schema.rs#L498), [`core/dr-types/src/selector.rs:1`](../core/dr-types/src/selector.rs#L1), [`core/dr-types/src/settings.rs:63`](../core/dr-types/src/settings.rs#L63), [`core/dr-types/src/time.rs:67`](../core/dr-types/src/time.rs#L67), [`core/dr-types/src/time.rs:90`](../core/dr-types/src/time.rs#L90), [`ui/dr-ui/src/library.rs:203`](../ui/dr-ui/src/library.rs#L203), [`ui/dr-ui/src/library.rs:3356`](../ui/dr-ui/src/library.rs#L3356), [`ui/dr-ui/src/library_ui.rs:315`](../ui/dr-ui/src/library_ui.rs#L315), [`ui/dr-ui/src/library_ui.rs:387`](../ui/dr-ui/src/library_ui.rs#L387), [`ui/dr-ui/src/library_ui.rs:5140`](../ui/dr-ui/src/library_ui.rs#L5140), [`ui/dr-ui/src/library_ui.rs:5193`](../ui/dr-ui/src/library_ui.rs#L5193), [`ui/dr-ui/src/library_ui.rs:6411`](../ui/dr-ui/src/library_ui.rs#L6411), [`ui/dr-ui/ui/app.slint:488`](../ui/dr-ui/ui/app.slint#L488), [`ui/dr-ui/ui/app.slint:655`](../ui/dr-ui/ui/app.slint#L655), [`ui/dr-ui/ui/app.slint:894`](../ui/dr-ui/ui/app.slint#L894), [`ui/dr-ui/ui/library.slint:109`](../ui/dr-ui/ui/library.slint#L109), [`ui/dr-ui/ui/library.slint:1288`](../ui/dr-ui/ui/library.slint#L1288), [`ui/dr-ui/ui/library.slint:902`](../ui/dr-ui/ui/library.slint#L902), [`ui/dr-ui/ui/settings.slint:128`](../ui/dr-ui/ui/settings.slint#L128) |
| FR-CAT-5 | [`core/dr-catalog/src/keywords.rs:1`](../core/dr-catalog/src/keywords.rs#L1), [`core/dr-catalog/src/merge.rs:1`](../core/dr-catalog/src/merge.rs#L1), [`core/dr-catalog/src/rating.rs:1`](../core/dr-catalog/src/rating.rs#L1), [`core/dr-catalog/src/schema.rs:1001`](../core/dr-catalog/src/schema.rs#L1001), [`core/dr-catalog/src/schema.rs:498`](../core/dr-catalog/src/schema.rs#L498), [`core/dr-decode/src/lib.rs:285`](../core/dr-decode/src/lib.rs#L285), [`core/dr-decode/src/lib.rs:404`](../core/dr-decode/src/lib.rs#L404), [`core/dr-pipeline/src/sidecar.rs:135`](../core/dr-pipeline/src/sidecar.rs#L135), [`ui/dr-ui/src/collections_ui.rs:1578`](../ui/dr-ui/src/collections_ui.rs#L1578), [`ui/dr-ui/src/collections_ui.rs:1597`](../ui/dr-ui/src/collections_ui.rs#L1597), [`ui/dr-ui/src/collections_ui.rs:243`](../ui/dr-ui/src/collections_ui.rs#L243), [`ui/dr-ui/src/collections_ui.rs:340`](../ui/dr-ui/src/collections_ui.rs#L340), [`ui/dr-ui/src/collections_ui.rs:89`](../ui/dr-ui/src/collections_ui.rs#L89), [`ui/dr-ui/src/library.rs:3143`](../ui/dr-ui/src/library.rs#L3143), [`ui/dr-ui/src/library_ui.rs:6271`](../ui/dr-ui/src/library_ui.rs#L6271), [`ui/dr-ui/src/library_ui.rs:6282`](../ui/dr-ui/src/library_ui.rs#L6282), [`ui/dr-ui/src/library_ui.rs:628`](../ui/dr-ui/src/library_ui.rs#L628), [`ui/dr-ui/src/library_ui.rs:6295`](../ui/dr-ui/src/library_ui.rs#L6295), [`ui/dr-ui/src/library_ui.rs:6310`](../ui/dr-ui/src/library_ui.rs#L6310), [`ui/dr-ui/src/library_ui.rs:6319`](../ui/dr-ui/src/library_ui.rs#L6319), [`ui/dr-ui/ui/app.slint:485`](../ui/dr-ui/ui/app.slint#L485), [`ui/dr-ui/ui/app.slint:655`](../ui/dr-ui/ui/app.slint#L655), [`ui/dr-ui/ui/library.slint:1219`](../ui/dr-ui/ui/library.slint#L1219), [`ui/dr-ui/ui/library.slint:1222`](../ui/dr-ui/ui/library.slint#L1222), [`ui/dr-ui/ui/library.slint:18`](../ui/dr-ui/ui/library.slint#L18), [`ui/dr-ui/ui/library.slint:850`](../ui/dr-ui/ui/library.slint#L850), [`ui/dr-ui/ui/library.slint:902`](../ui/dr-ui/ui/library.slint#L902) |
| FR-CAT-6 | [`core/dr-catalog/src/collections.rs:1`](../core/dr-catalog/src/collections.rs#L1), [`core/dr-catalog/src/keywords.rs:1`](../core/dr-catalog/src/keywords.rs#L1), [`core/dr-catalog/src/lib.rs:1`](../core/dr-catalog/src/lib.rs#L1), [`core/dr-catalog/src/query.rs:1`](../core/dr-catalog/src/query.rs#L1), [`core/dr-catalog/src/rating.rs:1`](../core/dr-catalog/src/rating.rs#L1), [`core/dr-catalog/src/schema.rs:498`](../core/dr-catalog/src/schema.rs#L498), [`core/dr-types/src/selector.rs:1`](../core/dr-types/src/selector.rs#L1), [`core/dr-types/src/settings.rs:63`](../core/dr-types/src/settings.rs#L63), [`core/dr-types/src/time.rs:67`](../core/dr-types/src/time.rs#L67), [`core/dr-types/src/time.rs:90`](../core/dr-types/src/time.rs#L90), [`ui/dr-ui/src/library.rs:203`](../ui/dr-ui/src/library.rs#L203), [`ui/dr-ui/src/library.rs:3389`](../ui/dr-ui/src/library.rs#L3389), [`ui/dr-ui/src/library_ui.rs:315`](../ui/dr-ui/src/library_ui.rs#L315), [`ui/dr-ui/src/library_ui.rs:387`](../ui/dr-ui/src/library_ui.rs#L387), [`ui/dr-ui/src/library_ui.rs:5140`](../ui/dr-ui/src/library_ui.rs#L5140), [`ui/dr-ui/src/library_ui.rs:5193`](../ui/dr-ui/src/library_ui.rs#L5193), [`ui/dr-ui/src/library_ui.rs:6411`](../ui/dr-ui/src/library_ui.rs#L6411), [`ui/dr-ui/ui/app.slint:488`](../ui/dr-ui/ui/app.slint#L488), [`ui/dr-ui/ui/app.slint:655`](../ui/dr-ui/ui/app.slint#L655), [`ui/dr-ui/ui/app.slint:894`](../ui/dr-ui/ui/app.slint#L894), [`ui/dr-ui/ui/library.slint:109`](../ui/dr-ui/ui/library.slint#L109), [`ui/dr-ui/ui/library.slint:1288`](../ui/dr-ui/ui/library.slint#L1288), [`ui/dr-ui/ui/library.slint:902`](../ui/dr-ui/ui/library.slint#L902), [`ui/dr-ui/ui/settings.slint:128`](../ui/dr-ui/ui/settings.slint#L128) |
| FR-CAT-7 | [`core/dr-catalog/src/collections.rs:1`](../core/dr-catalog/src/collections.rs#L1), [`core/dr-catalog/src/merge.rs:1`](../core/dr-catalog/src/merge.rs#L1), [`core/dr-catalog/src/sync.rs:1`](../core/dr-catalog/src/sync.rs#L1), [`core/dr-types/src/selector.rs:1`](../core/dr-types/src/selector.rs#L1), [`ui/dr-ui/src/collections_ui.rs:1693`](../ui/dr-ui/src/collections_ui.rs#L1693), [`ui/dr-ui/src/collections_ui.rs:1`](../ui/dr-ui/src/collections_ui.rs#L1), [`ui/dr-ui/src/derived_sync.rs:1`](../ui/dr-ui/src/derived_sync.rs#L1), [`ui/dr-ui/src/library_ui.rs:3482`](../ui/dr-ui/src/library_ui.rs#L3482), [`ui/dr-ui/src/library_ui.rs:4180`](../ui/dr-ui/src/library_ui.rs#L4180), [`ui/dr-ui/ui/app.slint:650`](../ui/dr-ui/ui/app.slint#L650), [`ui/dr-ui/ui/collections.slint:4`](../ui/dr-ui/ui/collections.slint#L4), [`ui/dr-ui/ui/library.slint:2528`](../ui/dr-ui/ui/library.slint#L2528), [`ui/dr-ui/ui/library.slint:873`](../ui/dr-ui/ui/library.slint#L873), [`ui/dr-ui/ui/library.slint:892`](../ui/dr-ui/ui/library.slint#L892) |
| FR-CAT-8 | [`core/dr-pipeline/src/graph.rs:345`](../core/dr-pipeline/src/graph.rs#L345), [`core/dr-pipeline/src/graph.rs:384`](../core/dr-pipeline/src/graph.rs#L384), [`core/dr-pipeline/src/ops/curve.rs:136`](../core/dr-pipeline/src/ops/curve.rs#L136), [`core/dr-pipeline/src/ops/curve.rs:652`](../core/dr-pipeline/src/ops/curve.rs#L652), [`core/dr-pipeline/src/sidecar.rs:1627`](../core/dr-pipeline/src/sidecar.rs#L1627), [`core/dr-pipeline/src/sidecar.rs:92`](../core/dr-pipeline/src/sidecar.rs#L92), [`core/dr-pipeline/src/state.rs:1`](../core/dr-pipeline/src/state.rs#L1), [`core/dr-pipeline/src/state.rs:75`](../core/dr-pipeline/src/state.rs#L75), [`core/dr-pipeline/tests/tone_curve.rs:34`](../core/dr-pipeline/tests/tone_curve.rs#L34), [`ui/dr-ui/src/develop.rs:3287`](../ui/dr-ui/src/develop.rs#L3287), [`ui/dr-ui/src/develop.rs:3316`](../ui/dr-ui/src/develop.rs#L3316), [`ui/dr-ui/src/export.rs:752`](../ui/dr-ui/src/export.rs#L752), [`ui/dr-ui/src/lib.rs:1365`](../ui/dr-ui/src/lib.rs#L1365), [`ui/dr-ui/src/lib.rs:1738`](../ui/dr-ui/src/lib.rs#L1738), [`ui/dr-ui/src/lib.rs:1874`](../ui/dr-ui/src/lib.rs#L1874), [`ui/dr-ui/src/lib.rs:480`](../ui/dr-ui/src/lib.rs#L480), [`ui/dr-ui/src/lib.rs:905`](../ui/dr-ui/src/lib.rs#L905), [`ui/dr-ui/src/library.rs:1551`](../ui/dr-ui/src/library.rs#L1551), [`ui/dr-ui/src/library.rs:364`](../ui/dr-ui/src/library.rs#L364), [`ui/dr-ui/src/library.rs:411`](../ui/dr-ui/src/library.rs#L411), [`ui/dr-ui/src/library.rs:448`](../ui/dr-ui/src/library.rs#L448), [`ui/dr-ui/src/library.rs:696`](../ui/dr-ui/src/library.rs#L696), [`ui/dr-ui/src/library_ui.rs:4882`](../ui/dr-ui/src/library_ui.rs#L4882), [`ui/dr-ui/src/sidecar_cache.rs:1`](../ui/dr-ui/src/sidecar_cache.rs#L1) |
| FR-CAT-9 | [`core/dr-catalog/src/cache.rs:1`](../core/dr-catalog/src/cache.rs#L1), [`core/dr-catalog/src/scan.rs:1`](../core/dr-catalog/src/scan.rs#L1), [`core/dr-catalog/src/schema.rs:555`](../core/dr-catalog/src/schema.rs#L555), [`core/dr-catalog/src/walk.rs:162`](../core/dr-catalog/src/walk.rs#L162), [`core/dr-catalog/src/walk.rs:1`](../core/dr-catalog/src/walk.rs#L1), [`core/dr-catalog/src/walk.rs:435`](../core/dr-catalog/src/walk.rs#L435), [`core/dr-catalog/src/walk.rs:704`](../core/dr-catalog/src/walk.rs#L704), [`core/dr-sync-nextcloud/src/desktop_client.rs:30`](../core/dr-sync-nextcloud/src/desktop_client.rs#L30), [`core/dr-sync/src/reachability.rs:1`](../core/dr-sync/src/reachability.rs#L1), [`core/dr-types/src/lib.rs:119`](../core/dr-types/src/lib.rs#L119), [`ui/dr-ui/src/develop.rs:2812`](../ui/dr-ui/src/develop.rs#L2812), [`ui/dr-ui/src/library.rs:138`](../ui/dr-ui/src/library.rs#L138), [`ui/dr-ui/src/library.rs:1511`](../ui/dr-ui/src/library.rs#L1511), [`ui/dr-ui/src/library.rs:1588`](../ui/dr-ui/src/library.rs#L1588), [`ui/dr-ui/src/library.rs:220`](../ui/dr-ui/src/library.rs#L220), [`ui/dr-ui/src/library.rs:3463`](../ui/dr-ui/src/library.rs#L3463), [`ui/dr-ui/src/library.rs:448`](../ui/dr-ui/src/library.rs#L448), [`ui/dr-ui/src/library.rs:680`](../ui/dr-ui/src/library.rs#L680), [`ui/dr-ui/src/library.rs:696`](../ui/dr-ui/src/library.rs#L696), [`ui/dr-ui/src/library.rs:750`](../ui/dr-ui/src/library.rs#L750), [`ui/dr-ui/src/library_ui.rs:1564`](../ui/dr-ui/src/library_ui.rs#L1564), [`ui/dr-ui/src/library_ui.rs:1590`](../ui/dr-ui/src/library_ui.rs#L1590), [`ui/dr-ui/src/library_ui.rs:1606`](../ui/dr-ui/src/library_ui.rs#L1606), [`ui/dr-ui/src/library_ui.rs:1700`](../ui/dr-ui/src/library_ui.rs#L1700), [`ui/dr-ui/src/library_ui.rs:226`](../ui/dr-ui/src/library_ui.rs#L226), [`ui/dr-ui/src/library_ui.rs:2316`](../ui/dr-ui/src/library_ui.rs#L2316), [`ui/dr-ui/src/library_ui.rs:259`](../ui/dr-ui/src/library_ui.rs#L259), [`ui/dr-ui/src/library_ui.rs:2754`](../ui/dr-ui/src/library_ui.rs#L2754), [`ui/dr-ui/src/library_ui.rs:2976`](../ui/dr-ui/src/library_ui.rs#L2976), [`ui/dr-ui/src/library_ui.rs:3257`](../ui/dr-ui/src/library_ui.rs#L3257), [`ui/dr-ui/src/library_ui.rs:3345`](../ui/dr-ui/src/library_ui.rs#L3345), [`ui/dr-ui/src/library_ui.rs:3533`](../ui/dr-ui/src/library_ui.rs#L3533), [`ui/dr-ui/src/library_ui.rs:3651`](../ui/dr-ui/src/library_ui.rs#L3651), [`ui/dr-ui/src/library_ui.rs:440`](../ui/dr-ui/src/library_ui.rs#L440), [`ui/dr-ui/src/library_ui.rs:498`](../ui/dr-ui/src/library_ui.rs#L498), [`ui/dr-ui/src/library_ui.rs:5238`](../ui/dr-ui/src/library_ui.rs#L5238), [`ui/dr-ui/src/library_ui.rs:5353`](../ui/dr-ui/src/library_ui.rs#L5353), [`ui/dr-ui/src/presets.rs:326`](../ui/dr-ui/src/presets.rs#L326), [`ui/dr-ui/src/presets.rs:338`](../ui/dr-ui/src/presets.rs#L338), [`ui/dr-ui/src/sidecar_cache.rs:1`](../ui/dr-ui/src/sidecar_cache.rs#L1) |
| FR-CAT-9 | [`core/dr-catalog/src/cache.rs:1`](../core/dr-catalog/src/cache.rs#L1), [`core/dr-catalog/src/scan.rs:1`](../core/dr-catalog/src/scan.rs#L1), [`core/dr-catalog/src/schema.rs:555`](../core/dr-catalog/src/schema.rs#L555), [`core/dr-catalog/src/walk.rs:162`](../core/dr-catalog/src/walk.rs#L162), [`core/dr-catalog/src/walk.rs:1`](../core/dr-catalog/src/walk.rs#L1), [`core/dr-catalog/src/walk.rs:435`](../core/dr-catalog/src/walk.rs#L435), [`core/dr-catalog/src/walk.rs:704`](../core/dr-catalog/src/walk.rs#L704), [`core/dr-sync-nextcloud/src/desktop_client.rs:30`](../core/dr-sync-nextcloud/src/desktop_client.rs#L30), [`core/dr-sync/src/reachability.rs:1`](../core/dr-sync/src/reachability.rs#L1), [`core/dr-types/src/lib.rs:119`](../core/dr-types/src/lib.rs#L119), [`ui/dr-ui/src/develop.rs:2812`](../ui/dr-ui/src/develop.rs#L2812), [`ui/dr-ui/src/library.rs:138`](../ui/dr-ui/src/library.rs#L138), [`ui/dr-ui/src/library.rs:1511`](../ui/dr-ui/src/library.rs#L1511), [`ui/dr-ui/src/library.rs:1588`](../ui/dr-ui/src/library.rs#L1588), [`ui/dr-ui/src/library.rs:220`](../ui/dr-ui/src/library.rs#L220), [`ui/dr-ui/src/library.rs:3496`](../ui/dr-ui/src/library.rs#L3496), [`ui/dr-ui/src/library.rs:448`](../ui/dr-ui/src/library.rs#L448), [`ui/dr-ui/src/library.rs:680`](../ui/dr-ui/src/library.rs#L680), [`ui/dr-ui/src/library.rs:696`](../ui/dr-ui/src/library.rs#L696), [`ui/dr-ui/src/library.rs:750`](../ui/dr-ui/src/library.rs#L750), [`ui/dr-ui/src/library_ui.rs:1564`](../ui/dr-ui/src/library_ui.rs#L1564), [`ui/dr-ui/src/library_ui.rs:1590`](../ui/dr-ui/src/library_ui.rs#L1590), [`ui/dr-ui/src/library_ui.rs:1606`](../ui/dr-ui/src/library_ui.rs#L1606), [`ui/dr-ui/src/library_ui.rs:1700`](../ui/dr-ui/src/library_ui.rs#L1700), [`ui/dr-ui/src/library_ui.rs:226`](../ui/dr-ui/src/library_ui.rs#L226), [`ui/dr-ui/src/library_ui.rs:2316`](../ui/dr-ui/src/library_ui.rs#L2316), [`ui/dr-ui/src/library_ui.rs:259`](../ui/dr-ui/src/library_ui.rs#L259), [`ui/dr-ui/src/library_ui.rs:2754`](../ui/dr-ui/src/library_ui.rs#L2754), [`ui/dr-ui/src/library_ui.rs:2976`](../ui/dr-ui/src/library_ui.rs#L2976), [`ui/dr-ui/src/library_ui.rs:3257`](../ui/dr-ui/src/library_ui.rs#L3257), [`ui/dr-ui/src/library_ui.rs:3345`](../ui/dr-ui/src/library_ui.rs#L3345), [`ui/dr-ui/src/library_ui.rs:3533`](../ui/dr-ui/src/library_ui.rs#L3533), [`ui/dr-ui/src/library_ui.rs:3651`](../ui/dr-ui/src/library_ui.rs#L3651), [`ui/dr-ui/src/library_ui.rs:440`](../ui/dr-ui/src/library_ui.rs#L440), [`ui/dr-ui/src/library_ui.rs:498`](../ui/dr-ui/src/library_ui.rs#L498), [`ui/dr-ui/src/library_ui.rs:5238`](../ui/dr-ui/src/library_ui.rs#L5238), [`ui/dr-ui/src/library_ui.rs:5353`](../ui/dr-ui/src/library_ui.rs#L5353), [`ui/dr-ui/src/presets.rs:326`](../ui/dr-ui/src/presets.rs#L326), [`ui/dr-ui/src/presets.rs:338`](../ui/dr-ui/src/presets.rs#L338), [`ui/dr-ui/src/sidecar_cache.rs:1`](../ui/dr-ui/src/sidecar_cache.rs#L1) |
| FR-CULL-1 | [`core/dr-decode/src/preview.rs:121`](../core/dr-decode/src/preview.rs#L121) |
| FR-CULL-10 | [`core/dr-catalog/src/faces.rs:1`](../core/dr-catalog/src/faces.rs#L1), [`core/dr-catalog/src/schema.rs:384`](../core/dr-catalog/src/schema.rs#L384), [`ui/dr-ui/src/develop.rs:119`](../ui/dr-ui/src/develop.rs#L119), [`ui/dr-ui/src/develop.rs:128`](../ui/dr-ui/src/develop.rs#L128), [`ui/dr-ui/src/develop.rs:1776`](../ui/dr-ui/src/develop.rs#L1776), [`ui/dr-ui/src/develop.rs:194`](../ui/dr-ui/src/develop.rs#L194), [`ui/dr-ui/src/develop.rs:589`](../ui/dr-ui/src/develop.rs#L589), [`ui/dr-ui/src/faces.rs:1`](../ui/dr-ui/src/faces.rs#L1), [`ui/dr-ui/src/identity.rs:1`](../ui/dr-ui/src/identity.rs#L1), [`ui/dr-ui/src/identity_ui.rs:1`](../ui/dr-ui/src/identity_ui.rs#L1), [`ui/dr-ui/src/lib.rs:1846`](../ui/dr-ui/src/lib.rs#L1846), [`ui/dr-ui/ui/identity.slint:1`](../ui/dr-ui/ui/identity.slint#L1) |
| FR-CULL-11 | [`core/dr-catalog/src/faces.rs:1`](../core/dr-catalog/src/faces.rs#L1), [`core/dr-catalog/src/schema.rs:384`](../core/dr-catalog/src/schema.rs#L384), [`ui/dr-ui/src/identity.rs:1`](../ui/dr-ui/src/identity.rs#L1), [`ui/dr-ui/src/identity_ui.rs:1`](../ui/dr-ui/src/identity_ui.rs#L1), [`ui/dr-ui/ui/identity.slint:1`](../ui/dr-ui/ui/identity.slint#L1) |
@@ -117,7 +117,7 @@ _None._
| NFR-OPS-1 | [`tools/traceability/src/lib.rs:266`](../tools/traceability/src/lib.rs#L266) |
| NFR-P1 | [`core/dr-catalog/src/lib.rs:1`](../core/dr-catalog/src/lib.rs#L1), [`core/dr-catalog/src/scan.rs:1`](../core/dr-catalog/src/scan.rs#L1), [`core/dr-catalog/src/walk.rs:162`](../core/dr-catalog/src/walk.rs#L162), [`core/dr-catalog/src/walk.rs:1`](../core/dr-catalog/src/walk.rs#L1), [`tools/traceability/src/lib.rs:479`](../tools/traceability/src/lib.rs#L479) |
| NFR-P13 | [`core/dr-decode/src/preview.rs:121`](../core/dr-decode/src/preview.rs#L121) |
| NFR-P5 | [`core/dr-catalog/src/schema.rs:304`](../core/dr-catalog/src/schema.rs#L304), [`ui/dr-ui/src/library.rs:3196`](../ui/dr-ui/src/library.rs#L3196), [`ui/dr-ui/src/library.rs:3969`](../ui/dr-ui/src/library.rs#L3969), [`ui/dr-ui/src/library_ui.rs:4070`](../ui/dr-ui/src/library_ui.rs#L4070), [`ui/dr-ui/src/library_ui.rs:64`](../ui/dr-ui/src/library_ui.rs#L64) |
| NFR-P5 | [`core/dr-catalog/src/schema.rs:304`](../core/dr-catalog/src/schema.rs#L304), [`ui/dr-ui/src/library.rs:3229`](../ui/dr-ui/src/library.rs#L3229), [`ui/dr-ui/src/library.rs:4002`](../ui/dr-ui/src/library.rs#L4002), [`ui/dr-ui/src/library_ui.rs:4070`](../ui/dr-ui/src/library_ui.rs#L4070), [`ui/dr-ui/src/library_ui.rs:64`](../ui/dr-ui/src/library_ui.rs#L64) |
| NFR-P9 | [`ui/dr-ui/src/collections_ui.rs:1`](../ui/dr-ui/src/collections_ui.rs#L1), [`ui/dr-ui/src/export.rs:944`](../ui/dr-ui/src/export.rs#L944), [`ui/dr-ui/src/library.rs:1`](../ui/dr-ui/src/library.rs#L1), [`ui/dr-ui/src/library_ui.rs:1`](../ui/dr-ui/src/library_ui.rs#L1), [`ui/dr-ui/src/trash.rs:1`](../ui/dr-ui/src/trash.rs#L1) |
| NFR-PORT-1 | [`core/dr-catalog/src/walk.rs:1`](../core/dr-catalog/src/walk.rs#L1), [`core/dr-types/src/lib.rs:269`](../core/dr-types/src/lib.rs#L269), [`core/dr-types/src/lib.rs:302`](../core/dr-types/src/lib.rs#L302) |
| NFR-R1 | [`core/dr-catalog/src/sync.rs:1`](../core/dr-catalog/src/sync.rs#L1), [`ui/dr-ui/src/library.rs:953`](../ui/dr-ui/src/library.rs#L953) |
models/face/README.md
+30
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@@ -0,0 +1,30 @@
# Face models
The shape-fixed SCRFD detector and ArcFace/MobileFaceNet embedder, in LFS. One copy, packaged by
every platform:
| Platform | How it ships | Where it lands |
|---|---|---|
| Android | `assemble-apk.sh` bundles them as APK assets; `android_main` unpacks on first launch | the shared user data directory |
| Arch | `PKGBUILD` installs them | `/usr/share/darkroom/models/` |
`library::face_models` searches the account's own directory, then the shared user directory, then
`$XDG_DATA_DIRS` — so a pair the user placed by hand always outranks the packaged one.
scrfd_500m_640.onnx 2.5 MB
arcface_mbf_b1.onnx 13 MB
**A clone without git-lfs gets a ~130-byte pointer where each model should be.** Both packagers check
for exactly that and refuse, rather than shipping the pointer and failing inside tract on the user's
machine. Fix it with `git lfs pull`.
These are not what InsightFace ships. They came from `buffalo_sc.zip` and `buffalo_s.zip` on the
InsightFace v0.7 release with their input dimensions pinned, because tract cannot parse either graph
while they are dynamic:
./tools/fix-face-model-shapes.sh det_500m.onnx models/face/scrfd_500m_640.onnx --input input.1=1,3,640,640
./tools/fix-face-model-shapes.sh w600k_mbf.onnx models/face/arcface_mbf_b1.onnx --dim None=1
The weights carry a non-commercial research-only grant. They are here because this is a private
repository and self-installed builds; they come back out before anything is published, and the
restriction binds whoever uses the app, not only the project. docs/faces.md §2.2a is the decision.
apps/darkroom-android/android/assets/models/arcface_mbf_b1.onnx → models/face/arcface_mbf_b1.onnx
View File
apps/darkroom-android/android/assets/models/scrfd_500m_640.onnx → models/face/scrfd_500m_640.onnx
View File
packaging/PKGBUILD
+17 -1
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@@ -4,7 +4,7 @@
# makes `makepkg -si` in this directory install what you are actually working
# on. Swap `source` for a tagged tarball when there is something to release.
pkgname=darkroom
pkgver=0.6.0
pkgver=0.7.0
pkgrel=1
pkgdesc="Non-destructive RAW photo library and editor"
arch=('x86_64')
@@ -43,4 +43,20 @@ package() {
"${pkgdir}/usr/share/icons/hicolor/256x256/apps/paris.tourolle.darkroom.png"
install -Dm644 "README.md" "${pkgdir}/usr/share/doc/${pkgname}/README.md"
# The face models, into the last directory the app searches. A pair the
# user placed in their own data directory outranks these, so installing
# them cannot override a deliberate choice of weights.
#
# These live in LFS; a checkout without `git lfs pull` has ~130-byte
# pointers here. Installing one produces a package whose face indexing
# fails inside the graph loader on the user's machine, so refuse instead.
for _m in scrfd_500m_640.onnx arcface_mbf_b1.onnx; do
_src="models/face/${_m}"
if [[ "$(stat -c%s "${_src}")" -lt 100000 ]]; then
echo "error: ${_m} is an LFS pointer, not a model — run: git lfs pull" >&2
return 1
fi
install -Dm644 "${_src}" "${pkgdir}/usr/share/darkroom/models/${_m}"
done
}
ui/dr-ui/src/library.rs
+38 -5
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@@ -2934,17 +2934,50 @@ pub fn shared_face_models_dir() -> PathBuf {
/// `tools/fix-face-model-shapes.sh` has to run over the originals first,
/// because tract cannot parse either graph with a dynamic input.
///
/// The per-account directory wins over the shared one so a library can be
/// pinned to its own weights — a re-index after a model swap is a `model_id`
/// change, and someone mid-migration needs the old pair to stay put for one
/// account without holding back the other.
/// Searched in three places, most specific first:
///
/// 1. **The account's own directory.** A library can be pinned to its own
/// weights — a model swap is a `model_id` change and a re-index, and someone
/// mid-migration needs one account's pair to stay put without holding the
/// other back.
/// 2. **The shared user directory.** Where a user drops a pair by hand, and
/// where the Android entry point unpacks the copy the APK carries.
/// 3. **The system directories.** Where a package installs them — the Arch
/// package puts the pair in `/usr/share/darkroom/models`. Last, so anything
/// the user placed themselves outranks what the package shipped.
pub fn face_models(server: &str, user_id: &str) -> Option<(PathBuf, PathBuf)> {
fn pair(dir: PathBuf) -> Option<(PathBuf, PathBuf)> {
let detector = dir.join("scrfd_500m_640.onnx");
let embedder = dir.join("arcface_mbf_b1.onnx");
(detector.is_file() && embedder.is_file()).then_some((detector, embedder))
}
pair(face_models_dir(server, user_id)).or_else(|| pair(shared_face_models_dir()))
pair(face_models_dir(server, user_id))
.or_else(|| pair(shared_face_models_dir()))
.or_else(|| system_face_models_dirs().into_iter().find_map(pair))
}
/// Where a *package* may have installed the models.
///
/// `$XDG_DATA_DIRS` rather than a hard-coded `/usr/share`, because that is the
/// variable a distribution, a prefix install, or a Nix-style store sets to say
/// where its data went, and the default it falls back to is exactly the pair of
/// paths that would otherwise have been hard-coded.
///
/// Empty on Android, which has no such directories: there the APK's copy is
/// unpacked into the shared user directory instead, because an asset inside a
/// package is not a path anything can read from (ARCH §6.9).
fn system_face_models_dirs() -> Vec<PathBuf> {
if cfg!(target_os = "android") {
return Vec::new();
}
let dirs = std::env::var("XDG_DATA_DIRS")
.ok()
.filter(|v| !v.is_empty())
.unwrap_or_else(|| "/usr/local/share:/usr/share".into());
dirs.split(':')
.filter(|d| !d.is_empty())
.map(|d| PathBuf::from(d).join("darkroom").join("models"))
.collect()
}
/// One grid cell's data, read from the catalog.