feat: publish native road layer manifest

README.md

@@ -8,4 +8,4 @@ npx road-compiler --input /absolute/path/road-compiler.input.json
 
 The compiler does not read host area configuration. The caller owns configuration normalization and creates the input JSON. Successful compilation writes exactly one `NATIVE_ROAD_COMPILE_DONE` JSON marker to stdout.
 
-Run `npm test` and `npm run test:road-parity` after `npm ci` to validate the package without the host repository.
+Run `npm test` after `npm ci` to validate the package and its two self-contained area fixtures without the host repository. The migrated baselines remain upgrade corpus; the host repository owns the strict path-normalized parity gate.

assets/lane-icons/manifest.json

@@ -0,0 +1,24 @@
+{
+  "upstream": {
+    "repository": "https://github.com/openstreetmap/lane-icons",
+    "revision": "db3cab321da93a757c2cf3cdb4f1f1db6b1a091c",
+    "license": "CC0-1.0",
+    "license_file": "upstream/LICENSE.md"
+  },
+  "assets": [
+    {"id":"through","source":"upstream/through.svg","anchor_x":12.5,"supported":true,"tested":true,"template":"through"},
+    {"id":"left","source":"upstream/left.svg","anchor_x":17,"supported":true,"tested":true,"template":"left"},
+    {"id":"right","source":"upstream/left.svg","derived_from":"left","mirror_x":true,"anchor_x":17,"supported":true,"tested":true,"template":"right"},
+    {"id":"through;left","source":"upstream/left-through.svg","anchor_x":17,"supported":true,"tested":true,"template":"through_left"},
+    {"id":"through;right","source":"upstream/left-through.svg","derived_from":"through;left","mirror_x":true,"anchor_x":17,"supported":true,"tested":true,"template":"through_right"},
+    {"id":"through;left;right","source":"upstream/left-slight_left-through.svg","derived_from":"through;left + through;right","anchor_x":17,"supported":true,"tested":true,"template":"through_left_right"},
+    {"id":"slight_left","source":"upstream/slight_left.svg","supported":false,"tested":false},
+    {"id":"slight_left;through","source":"upstream/slight_left-through.svg","supported":false,"tested":false},
+    {"id":"left;slight_left;through","source":"upstream/left-slight_left-through.svg","supported":false,"tested":false},
+    {"id":"sharp_left","source":"upstream/sharp_left.svg","supported":false,"tested":false},
+    {"id":"sharp_left;through","source":"upstream/sharp_left-through.svg","supported":false,"tested":false},
+    {"id":"reverse_left","source":"upstream/reverse_left.svg","supported":false,"tested":false},
+    {"id":"reverse_left;through","source":"upstream/reverse_left-through.svg","supported":false,"tested":false},
+    {"id":"reverse_left;left;slight_left;through","source":"upstream/reverse_left-left-slight_left-through.svg","supported":false,"tested":false}
+  ]
+}

assets/lane-icons/upstream/DESIGN.md

@@ -0,0 +1,98 @@
+## Design Guidelines
+
+The icons in this project follow closely the design guidelines established in the
+[MUTCD Standard Highway Signs guide](http://mutcd.fhwa.dot.gov/ser-shs_millennium.htm),
+2009 edition published by the US Federal Highway Administration.
+
+The MUTCD is [in the public domain](http://mutcd.fhwa.dot.gov/knowledge/faqs/faq_general.htm#printq5)
+and as such it is not copyrighted.
+
+Each icon should be
+
+* 25px x 25px
+* SVG
+* Single color fill
+* Path outline only, no stroke
+* Pixel grid aligned (where possible)
+
+### Arrows
+
+Arrows use the "Standard Arrow" described in MUTCD Standard Highway Signs
+[Appendix](http://mutcd.fhwa.dot.gov/ser-shs_millennium.htm).
+
+An upward facing Standard Arrow is included in this icon pack, and forms the basis of all turn
+lane arrows.
+
+<img alt='Standard Arrow' width='300px' src='docs/standard_arrow.png'/>
+
+
+Arrowhead rotation angles are chosen based on the turn lane indication:
+
+<table>
+<tr>
+    <th>Through</th>
+    <th>Slight Left</th>
+    <th>Left</th>
+    <th>Sharp Left</th>
+    <th>Reverse Left</th>
+</tr>
+<tr>
+    <td>no rotation<br/>
+        <img alt='Through' width='100px' src='https://cdn.rawgit.com/openstreetmap/lane-icons/master/docs/through.svg'/>
+    </td>
+    <td>45 degrees<br/>
+        <img alt='Slight Left' width='100px' src='https://cdn.rawgit.com/openstreetmap/lane-icons/master/docs/slight_left.svg'/>
+    </td>
+    <td>70 or 90 degrees<br/>
+        <img alt='Left' width='100px' src='https://cdn.rawgit.com/openstreetmap/lane-icons/master/docs/left.svg'/>
+    </td>
+    <td>135 degrees<br/>
+        <img alt='Sharp Left' width='100px' src='https://cdn.rawgit.com/openstreetmap/lane-icons/master/docs/sharp_left.svg'/>
+    </td>
+    <td>180 degrees<br/>
+        <img alt='Reverse Left' width='100px' src='https://cdn.rawgit.com/openstreetmap/lane-icons/master/docs/reverse_left.svg'/>
+    </td>
+</tr>
+</table>
+
+As the number of arrows increases, the arrows scale down:
+
+<table>
+<tr>
+    <th>1 Arrow</th>
+    <th>2 Arrows</th>
+    <th>3 Arrows</th>
+    <th>4 Arrows</th>
+</tr>
+<tr>
+    <td>
+        <ul><li>3px stroke</li><li>standard arrowhead</li></ul>
+        <img alt='Through' width='100px' src='https://cdn.rawgit.com/openstreetmap/lane-icons/master/docs/through.svg'/>
+    </td>
+    <td>
+        <ul><li>2.5px stroke</li><li>83% scaled arrowhead</li></ul>
+        <img alt='Left, Through' width='100px' src='https://cdn.rawgit.com/openstreetmap/lane-icons/master/docs/left-through.svg'/>
+    </td>
+    <td>
+        <ul><li>2.25px stroke</li><li>75% scaled arrowhead</li></ul>
+        <img alt='Left, Slight Left, Through' width='100px' src='https://cdn.rawgit.com/openstreetmap/lane-icons/master/docs/left-slight_left-through.svg'/>
+    </td>
+    <td>
+        <ul><li>2px stroke</li><li>66% scaled arrowhead</li></ul>
+        <img alt='Reverse Left, Left, Slight Left, Through' width='100px' src='https://cdn.rawgit.com/openstreetmap/lane-icons/master/docs/reverse_left-left-slight_left-through.svg'/>
+    </td>
+</tr>
+</table>
+
+
+Other important rules for arrows:
+* Bottom aligned with each other, 2px from icon bottom edge
+* Left-right centered
+* Smooth curves, no kinks
+* Arrow shaft path connects to the arrowhead anchor point
+
+
+### Other Icons
+
+Other non-arrow icons (bus, hov, pedestrian, tram, etc) also imitiate the icons found
+in the MUTCD Standard Highway Signs [Appendix](http://mutcd.fhwa.dot.gov/ser-shs_millennium.htm).

assets/lane-icons/upstream/LICENSE.md

@@ -0,0 +1,118 @@
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assets/lane-icons/upstream/left-slight_left-through.svg

@@ -0,0 +1 @@
+<svg id="left-slight_left-through" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 25 25"><title>icons</title><line x1="18.1" y1="5.17" x2="18.11" y2="23" fill="none" stroke="#000" stroke-miterlimit="10" stroke-width="2.25"/><path d="M18.11,19.69c0-3.65-5.82-6.62-9.2-6.62" fill="none" stroke="#000" stroke-miterlimit="10" stroke-width="2.25"/><path d="M11.89,7.16S18.11,12.74,18.11,19" fill="none" stroke="#000" stroke-miterlimit="10" stroke-width="2.25"/><path d="M18.16,1.09a0.07,0.07,0,0,0-.12,0L15.26,5.36a0.42,0.42,0,0,0,.48.62l2.36-.81L20.47,6A0.42,0.42,0,0,0,21,5.37Z"/><path d="M4.83,13a0.07,0.07,0,0,0,0,.12L9.1,15.91a0.42,0.42,0,0,0,.62-0.48L8.91,13.07,9.72,10.7a0.42,0.42,0,0,0-.62-0.48Z"/><path d="M9.05,4.24A0.07,0.07,0,0,0,9,4.32l1,5a0.42,0.42,0,0,0,.78.1l1.1-2.24,2.25-1.1A0.42,0.42,0,0,0,14,5.28Z"/></svg>

assets/lane-icons/upstream/left-through.svg

@@ -0,0 +1 @@
+<svg id="left-through" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 25 25"><title>icons</title><line x1="17" y1="23" x2="17" y2="6.81" fill="none" stroke="#000" stroke-miterlimit="10" stroke-width="2.5"/><path d="M17,19c0-5.32-4.66-8.23-7.83-9.1" fill="none" stroke="#000" stroke-miterlimit="10" stroke-width="2.5"/><path d="M17.06,2.3a0.08,0.08,0,0,0-.13,0L13.85,7a0.47,0.47,0,0,0,.53.69L17,6.81l2.62,0.9A0.46,0.46,0,0,0,20.15,7Z"/><path d="M5,8.29a0.08,0.08,0,0,0,0,.12l3.38,4.51a0.47,0.47,0,0,0,.83-0.27L9.17,9.9l1.74-2.16A0.46,0.46,0,0,0,10.45,7Z"/></svg>

assets/lane-icons/upstream/left.svg

@@ -0,0 +1 @@
+<svg id="left" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 25 25"><title>icons</title><path d="M17,23V18c0-6.78-3.24-8.11-5.85-8.86" fill="none" stroke="#000" stroke-miterlimit="10" stroke-width="3"/><path d="M6.07,7.21A0.1,0.1,0,0,0,6,7.36l4.08,5.44a0.56,0.56,0,0,0,1-.32l0.06-3.33,2.1-2.6a0.56,0.56,0,0,0-.55-0.88Z"/></svg>

assets/lane-icons/upstream/reverse_left-left-slight_left-through.svg

@@ -0,0 +1 @@
+<svg id="reverse_left-left-slight_left-through" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 25 25"><title>icons</title><line x1="19" y1="4" x2="19" y2="23" fill="none" stroke="#000" stroke-miterlimit="10" stroke-width="2"/><path d="M7.21,12h5.5A15.61,15.61,0,0,1,19,13" fill="none" stroke="#000" stroke-miterlimit="10" stroke-width="2"/><path d="M13.7,5.85S19,9.23,19,15" fill="none" stroke="#000" stroke-miterlimit="10" stroke-width="2"/><path d="M19.05,0.43a0.07,0.07,0,0,0-.1,0L16.49,4.18a0.37,0.37,0,0,0,.42.55L19,4l2.09,0.71a0.37,0.37,0,0,0,.42-0.54Z"/><path d="M11.2,3.28a0.07,0.07,0,0,0-.07.07l0.92,4.39a0.37,0.37,0,0,0,.68.09l1-2,2-1A0.37,0.37,0,0,0,15.6,4.2Z"/><path d="M3.68,11.95a0.07,0.07,0,0,0,0,.1L7.44,14.5A0.37,0.37,0,0,0,8,14.08L7.21,12,8,9.91a0.37,0.37,0,0,0-.54-0.42Z"/><path d="M10,23.06a0.07,0.07,0,0,0,.1,0l2.45-3.76a0.37,0.37,0,0,0-.42-0.55L10,19.48l-2.09-.71a0.37,0.37,0,0,0-.42.54Z"/><path d="M19,16c0-5.42-9-4.84-9,0l0,3.48" fill="none" stroke="#000" stroke-miterlimit="10" stroke-width="2"/></svg>

assets/lane-icons/upstream/reverse_left-through.svg

@@ -0,0 +1 @@
+<svg id="reverse_left-through" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 25 25"><title>icons</title><path d="M8.36,23a0.08,0.08,0,0,0,.13,0l3.08-4.72A0.47,0.47,0,0,0,11,17.56l-2.62.9-2.62-.9a0.46,0.46,0,0,0-.53.68Z"/><line x1="17" y1="23.19" x2="17" y2="6.08" fill="none" stroke="#000" stroke-miterlimit="10" stroke-width="2.5"/><path d="M17.06,1.57a0.08,0.08,0,0,0-.13,0L13.85,6.29a0.47,0.47,0,0,0,.53.69L17,6.08,19.62,7a0.46,0.46,0,0,0,.53-0.68Z"/><path d="M17,16c0-5-8.58-5.08-8.58,0v2.46" fill="none" stroke="#000" stroke-miterlimit="10" stroke-width="2.5"/></svg>

assets/lane-icons/upstream/reverse_left.svg

@@ -0,0 +1 @@
+<svg id="reverse_left" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 25 25"><title>icons</title><path d="M7.8,23A0.1,0.1,0,0,0,8,23l3.72-5.69A0.56,0.56,0,0,0,11,16.45L7.88,17.53,4.72,16.44a0.56,0.56,0,0,0-.64.82Z"/><path d="M18,23V13c0-8-10.08-7.77-10.12.1v5.42" fill="none" stroke="#000" stroke-miterlimit="10" stroke-width="3"/></svg>

assets/lane-icons/upstream/sharp_left-through.svg

@@ -0,0 +1 @@
+<svg id="sharp_left-through" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 25 25"><title>icons</title><path d="M5.38,17.17a0.08,0.08,0,0,0,.09.09L11,16.1a0.47,0.47,0,0,0,.11-0.86L8.62,14,7.4,11.53a0.46,0.46,0,0,0-.86.11Z"/><line x1="17" y1="23.19" x2="17" y2="6.08" fill="none" stroke="#000" stroke-miterlimit="10" stroke-width="2.5"/><path d="M17.06,1.57a0.08,0.08,0,0,0-.13,0L13.85,6.29a0.47,0.47,0,0,0,.53.69L17,6.08,19.62,7a0.46,0.46,0,0,0,.53-0.68Z"/><path d="M17,15.65c0-4.75-5.12-5.25-8.38-1.63" fill="none" stroke="#000" stroke-miterlimit="10" stroke-width="2.5"/></svg>

assets/lane-icons/upstream/sharp_left.svg

@@ -0,0 +1 @@
+<svg id="sharp_left" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 25 25"><title>icons</title><path d="M4.1,15.8a0.1,0.1,0,0,0,.11.11l6.65-1.4a0.56,0.56,0,0,0,.13-1L8,12,6.53,9a0.56,0.56,0,0,0-1,.13Z"/><path d="M18,23V15c0-5.78-4-7.79-8.61-4.11L8,12" fill="none" stroke="#000" stroke-miterlimit="10" stroke-width="3"/></svg>

assets/lane-icons/upstream/slight_left-through.svg

@@ -0,0 +1 @@
+<svg id="slight_left-through" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 25 25"><title>icons</title><line x1="17" y1="23.19" x2="17" y2="6.08" fill="none" stroke="#000" stroke-miterlimit="10" stroke-width="2.5"/><path d="M17.06,1.57a0.08,0.08,0,0,0-.13,0L13.85,6.29a0.47,0.47,0,0,0,.53.69L17,6.08,19.62,7a0.46,0.46,0,0,0,.53-0.68Z"/><path d="M17,19c0-4.22-4.84-9.36-6.54-10.68" fill="none" stroke="#000" stroke-miterlimit="10" stroke-width="2.5"/><path d="M7.3,5.09a0.08,0.08,0,0,0-.09.09L8.37,10.7a0.47,0.47,0,0,0,.86.11l1.22-2.48,2.49-1.22a0.46,0.46,0,0,0-.11-0.86Z"/></svg>

assets/lane-icons/upstream/slight_left.svg

@@ -0,0 +1 @@
+<svg id="slight_left" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 25 25"><title>icons</title><path d="M15,23V20c0-4.12-.1-9.29-3-12.74" fill="none" stroke="#000" stroke-miterlimit="10" stroke-width="3"/><path d="M8.26,3.36a0.1,0.1,0,0,0-.11.11l1.4,6.65a0.56,0.56,0,0,0,1,.13l1.46-3,3-1.47a0.56,0.56,0,0,0-.13-1Z"/></svg>

assets/lane-icons/upstream/through.svg

@@ -0,0 +1 @@
+<svg id="through" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 25 25"><title>icons</title><line x1="12.5" y1="23" x2="12.5" y2="8.47" fill="none" stroke="#000" stroke-miterlimit="10" stroke-width="3"/><path d="M12.58,3a0.1,0.1,0,0,0-.16,0L8.7,8.73a0.56,0.56,0,0,0,.64.83L12.5,8.47l3.16,1.08a0.56,0.56,0,0,0,.64-0.82Z"/></svg>

docs/native-road-package-v1.md

@@ -1,4 +1,8 @@
-# Native Road Package v1
+# Native Road Package v1.1
+
+`native-road-package/v1.1` adds a required `manifest.json` to the v1 output.
+Consumers may ignore this file when reading legacy v1 packages, but v1.1
+consumers must validate and consume it.
 
 `native-road-package/v1` defines the boundary between the host area pipeline
 and the native road compiler. The compiler accepts only the input below; it
@@ -35,6 +39,12 @@ shape and owns all path derivation.
 
 `outDir` contains these JSON documents:
 
+- `manifest.json`: `{ contract: "native-road-package/v1.1", areaId, layers }`.
+  `layers` declares exactly the twelve GeoJSON sources. Renderable entries have
+  `role` (`surface` or `marking`) and `materialLayer`; semantic entries have
+  `role: "semantic"` and no material. Optional `splitBy` contains one property
+  and exact-match cases plus one default case.
+
 - `compiled.json`: top-level keys are `schema`, `areaId`, `source`, `model`,
   `movements`, `trafficSignals`, `diagnostics`, and `layers`. `source` has
   `osm`, `overrides`, and `trafficSignals` paths.

package.json

@@ -1,6 +1,6 @@
 {
   "name": "@osm-asset/road-compiler",
-  "version": "0.1.0",
+  "version": "0.2.0",
   "private": false,
   "type": "commonjs",
   "main": "src/index.js",
@@ -8,8 +8,7 @@
     "road-compiler": "bin/road-compiler.js"
   },
   "scripts": {
-    "test": "node test/index.js",
+    "test": "node test/index.js && node test/fixtures.js",
-    "test:road-parity": "node test/road-parity.js",
     "road:workbench": "node bin/road-workbench.js"
   },
   "dependencies": {

src/compile/compiler.js

@@ -4,6 +4,7 @@
 const fs = require("fs");
 const path = require("path");
 const { compileRoadModel, compileGeometry, loadOverrides, validateOverrides, writeJsonAtomic } = require("./native-road");
+const { LAYER_REGISTRY, manifestForArea, validatePublishedLayers } = require("./layer-manifest");
 const { loadOrGenerate, runtime } = require("../native-traffic-signals");
 
 function compileInput(input) {
@@ -53,7 +54,7 @@ function compileInput(input) {
       movements: compiled.movements,
       trafficSignals: { assemblies: "traffic-signal-assemblies.json", runtime: "traffic-signals.json", count: signalRuntime.signals.length },
       diagnostics: compiled.diagnostics,
-      layers: { roadSurface: "layers/road_surface.geojson", edgeLines: "layers/edge_lines.geojson", sidewalkSurface: "layers/sidewalk_surface.geojson", intersectionSurface: "layers/intersection_surface.geojson", laneCenterlines: "layers/lane_centerlines.geojson", laneSeparators: "layers/lane_separators.geojson", centerLines: "layers/center_lines.geojson", directionArrows: "layers/direction_arrows.geojson", turnArrows: "layers/turn_arrows.geojson", crosswalks: "layers/crosswalks.geojson", vehicleStopLines: "layers/vehicle_stop_lines.geojson", connectors: "layers/connectors.geojson" },
+      layers: Object.fromEntries(LAYER_REGISTRY.map((layer) => [layer.key, `layers/${layer.source}.geojson`])),
     };
     const comparison = compareOsm2Streets(area, result.model, compiled);
     writeJsonAtomic(path.join(staging, "compiled.json"), result);
@@ -61,18 +62,10 @@ function compileInput(input) {
     writeJsonAtomic(path.join(staging, "comparison.json"), comparison);
     writeJsonAtomic(path.join(staging, "traffic-signal-assemblies.json"), signalDocument.assemblies);
     writeJsonAtomic(path.join(staging, "traffic-signals.json"), signalRuntime);
-    writeJsonAtomic(path.join(staging, "layers", "road_surface.geojson"), compiled.roadSurface);
+    for (const layer of LAYER_REGISTRY) writeJsonAtomic(path.join(staging, "layers", `${layer.source}.geojson`), compiled[layer.key]);
-    writeJsonAtomic(path.join(staging, "layers", "edge_lines.geojson"), compiled.edgeLines);
+    const manifest = manifestForArea(area.id);
-    writeJsonAtomic(path.join(staging, "layers", "sidewalk_surface.geojson"), compiled.sidewalkSurface);
+    validatePublishedLayers(staging, manifest);
-    writeJsonAtomic(path.join(staging, "layers", "intersection_surface.geojson"), compiled.intersectionSurface);
+    writeJsonAtomic(path.join(staging, "manifest.json"), manifest);
-    writeJsonAtomic(path.join(staging, "layers", "lane_centerlines.geojson"), compiled.laneCenterlines);
-    writeJsonAtomic(path.join(staging, "layers", "lane_separators.geojson"), compiled.laneSeparators);
-    writeJsonAtomic(path.join(staging, "layers", "center_lines.geojson"), compiled.centerLines);
-    writeJsonAtomic(path.join(staging, "layers", "direction_arrows.geojson"), compiled.directionArrows);
-    writeJsonAtomic(path.join(staging, "layers", "turn_arrows.geojson"), compiled.turnArrows);
-    writeJsonAtomic(path.join(staging, "layers", "crosswalks.geojson"), compiled.crosswalks);
-    writeJsonAtomic(path.join(staging, "layers", "vehicle_stop_lines.geojson"), compiled.vehicleStopLines);
-    writeJsonAtomic(path.join(staging, "layers", "connectors.geojson"), compiled.connectors);
     fs.rmSync(area.outputs.nativeRoadDir, { recursive: true, force: true });
     fs.renameSync(staging, area.outputs.nativeRoadDir);
     return { area, result, comparison };

src/compile/layer-manifest.js

@@ -0,0 +1,49 @@
+"use strict";
+
+// The compiler's layer registry is the single source of truth for published
+// GeoJSON files and the Blender-facing manifest. Keep rendering details limited
+// to material slot names; the host owns the actual material definitions.
+const LAYER_REGISTRY = Object.freeze([
+  { key: "roadSurface", source: "road_surface", role: "surface", materialLayer: "road_surface" },
+  { key: "intersectionSurface", source: "intersection_surface", role: "surface", materialLayer: "intersection_surface" },
+  { key: "sidewalkSurface", source: "sidewalk_surface", role: "surface", materialLayer: "sidewalks" },
+  { key: "edgeLines", source: "edge_lines", role: "marking", materialLayer: "lane_separators" },
+  { key: "laneSeparators", source: "lane_separators", role: "marking", materialLayer: "lane_separators", splitBy: { prop: "color", cases: [{ match: "yellow", material: "native_lane_separator_yellow" }, { default: true, material: "lane_separators" }] } },
+  { key: "centerLines", source: "center_lines", role: "marking", materialLayer: "center_lines", splitBy: { prop: "color", cases: [{ match: "white", material: "native_center_line_white" }, { default: true, material: "center_lines" }] } },
+  { key: "crosswalks", source: "crosswalks", role: "marking", materialLayer: "crosswalks" },
+  { key: "vehicleStopLines", source: "vehicle_stop_lines", role: "marking", materialLayer: "vehicle_stop_lines" },
+  { key: "directionArrows", source: "direction_arrows", role: "marking", materialLayer: "lane_arrows_webscale" },
+  { key: "turnArrows", source: "turn_arrows", role: "marking", materialLayer: "lane_arrows_webscale" },
+  { key: "laneCenterlines", source: "lane_centerlines", role: "semantic" },
+  { key: "connectors", source: "connectors", role: "semantic" },
+]);
+
+function manifestForArea(areaId) {
+  return {
+    contract: "native-road-package/v1.1",
+    areaId,
+    layers: LAYER_REGISTRY.map(({ source, role, materialLayer, splitBy }) => ({
+      source,
+      role,
+      ...(materialLayer ? { materialLayer } : {}),
+      ...(splitBy ? { splitBy } : {}),
+    })),
+  };
+}
+
+function validatePublishedLayers(directory, manifest) {
+  const declared = new Set();
+  for (const layer of manifest.layers) {
+    if (!layer || typeof layer.source !== "string" || declared.has(layer.source)) throw new Error("Manifest has duplicate or invalid source.");
+    declared.add(layer.source);
+    const file = require("path").join(directory, "layers", `${layer.source}.geojson`);
+    if (!require("fs").existsSync(file)) throw new Error(`Manifest source is missing: ${layer.source}`);
+  }
+  const files = require("fs").existsSync(require("path").join(directory, "layers"))
+    ? require("fs").readdirSync(require("path").join(directory, "layers")).filter((name) => name.endsWith(".geojson")).map((name) => name.slice(0, -8))
+    : [];
+  const extras = files.filter((source) => !declared.has(source));
+  if (extras.length) throw new Error(`Unmanifested GeoJSON source: ${extras.join(", ")}`);
+}
+
+module.exports = { LAYER_REGISTRY, manifestForArea, validatePublishedLayers };

src/compile/turn-lane-arrows.js

@@ -4,7 +4,7 @@ const fs = require("fs");
 const path = require("path");
 const { laneCenterline } = require("../geometry/lane-geometry");
 
-const ASSET_MANIFEST = path.resolve(__dirname, "..", "..", "..", "..", "assets", "lane-icons", "manifest.json");
+const ASSET_MANIFEST = path.resolve(__dirname, "..", "..", "assets", "lane-icons", "manifest.json");
 const LANE_WIDTH_METERS = 3.2;
 const PLACEMENT_DISTANCE_METERS = 9;
 const SPATIAL_MATCH_MAX_DISTANCE_METERS = 18;

src/index.js

@@ -9,6 +9,7 @@ module.exports = {
   trafficSignals: require("./traffic-signals"),
   nativeTrafficSignals: require("./native-traffic-signals"),
   nativeRoad: require("./compile/native-road"),
+  layerManifest: require("./compile/layer-manifest"),
   compiler: require("./compile/compiler"),
   check: require("./check"),
 };

test/fixtures.js

@@ -0,0 +1,27 @@
+"use strict";
+
+const assert = require("assert/strict");
+const fs = require("fs");
+const path = require("path");
+const { compiler } = require("../src");
+
+const root = path.resolve(__dirname, "..");
+for (const areaId of ["fengshu-er-road", "nantaizi-lake-innovation-valley"]) {
+  const isFengshu = areaId === "fengshu-er-road";
+  const outputRoot = path.join(root, "outputs", areaId);
+  const input = {
+    areaId,
+    osmFile: path.join(root, "inputs", "osm", isFengshu ? "枫树二路.osm" : "南台子湖创新谷OSM.osm"),
+    outDir: path.join(outputRoot, "native-road"),
+    stagingDir: path.join(outputRoot, "_pipeline"),
+    overridesFile: path.join(outputRoot, "native-road-overrides.json"),
+    trafficSignalsFile: path.join(outputRoot, "native-traffic-signals.json"),
+    comparisonDir: path.join(outputRoot, "osm2streets_web_out"),
+    options: { edgeLines: false, junctionTemplates: { enabled: false, references: [] } },
+  };
+  assert.ok(fs.existsSync(path.join(root, "test", "baseline", `${areaId}.json`)));
+  const { result } = compiler.compileInput(input);
+  assert.equal(result.areaId, areaId);
+  assert.ok(fs.existsSync(path.join(input.outDir, "compiled.json")));
+}
+console.log("road compiler fixture tests passed");

test/index.js

@@ -11,6 +11,12 @@ assert.equal(typeof compiler.turnLaneArrows.buildCustomTurnLaneArrows, "function
 assert.equal(typeof compiler.complexJunction.buildComplexJunctionGeometry, "function");
 assert.equal(typeof compiler.nativeRoad.compileRoadModel, "function");
 assert.equal(typeof compiler.check.checkOutput, "function");
+assert.equal(typeof compiler.layerManifest.manifestForArea, "function");
+const manifest = compiler.layerManifest.manifestForArea("fixture");
+assert.equal(manifest.contract, "native-road-package/v1.1");
+assert.equal(manifest.layers.length, 12);
+assert.deepEqual(manifest.layers.filter((layer) => layer.role === "semantic").map((layer) => layer.source), ["lane_centerlines", "connectors"]);
+assert.equal(manifest.layers.find((layer) => layer.source === "center_lines").splitBy.cases[0].match, "white");
 const fixture = path.join(__dirname, "fixtures", "fengshu-er-road.osm");
 assert.ok(fs.existsSync(fixture));
 assert.throws(() => compiler.compiler.validateInput({ id: "area" }), /RoadCompilerInput/);