Reduce bundle size of apps that import @turf/helpers (#2623)

* Remove GeojsonEquality library from turf-helpers/lib/ in favour of the third party geojson-equality-ts (which is essentially a copy of the code we're removing from turf-helpers/lib/). This allows us to remove the dependency on deep-equal which was causing an unintended increase in bundle size for users of turf-helpers. Updated boolean-equal and boolean-overlap to use geojson-equality-ts directly.

* Removing keepNames from tsup config.

---------

Co-authored-by: Tim Welch <tim.j.welch@gmail.com>

packages/turf-boolean-equal/index.ts

@@ -1,5 +1,5 @@
 import { Feature, Geometry } from "geojson";
-import { GeojsonEquality } from "@turf/helpers";
+import { geojsonEquality } from "geojson-equality-ts";
 import { cleanCoords } from "@turf/clean-coords";
 import { getGeom } from "@turf/invariant";
 
@@ -45,8 +45,9 @@ function booleanEqual(
   const type2 = getGeom(feature2).type;
   if (type1 !== type2) return false;
 
-  const equality = new GeojsonEquality({ precision: precision });
-  return equality.compare(cleanCoords(feature1), cleanCoords(feature2));
+  return geojsonEquality(cleanCoords(feature1), cleanCoords(feature2), {
+    precision,
+  });
 }
 
 export { booleanEqual };

packages/turf-boolean-equal/package.json

@@ -74,6 +74,7 @@
     "@turf/clean-coords": "workspace:^",
     "@turf/helpers": "workspace:^",
     "@turf/invariant": "workspace:^",
+    "geojson-equality-ts": "^1.0.2",
     "tslib": "^2.6.2"
   }
 }

packages/turf-boolean-overlap/index.ts

@@ -3,7 +3,7 @@ import { segmentEach } from "@turf/meta";
 import { getGeom } from "@turf/invariant";
 import { lineOverlap } from "@turf/line-overlap";
 import { lineIntersect } from "@turf/line-intersect";
-import { GeojsonEquality } from "@turf/helpers";
+import { geojsonEquality } from "geojson-equality-ts";
 
 /**
  * Compares two geometries of the same dimension and returns true if their intersection set results in a geometry
@@ -49,8 +49,8 @@ function booleanOverlap(
   if (type1 === "Point") throw new Error("Point geometry not supported");
 
   // features must be not equal
-  const equality = new GeojsonEquality({ precision: 6 });
-  if (equality.compare(feature1 as any, feature2 as any)) return false;
+  if (geojsonEquality(feature1 as any, feature2 as any, { precision: 6 }))
+    return false;
 
   let overlap = 0;
 

packages/turf-boolean-overlap/package.json

@@ -75,6 +75,7 @@
     "@turf/line-intersect": "workspace:^",
     "@turf/line-overlap": "workspace:^",
     "@turf/meta": "workspace:^",
+    "geojson-equality-ts": "^1.0.2",
     "tslib": "^2.6.2"
   }
 }

packages/turf-helpers/index.ts

@@ -17,7 +17,6 @@ import {
 
 import { Id } from "./lib/geojson.js";
 export * from "./lib/geojson.js";
-export * from "./lib/geojson-equality.js";
 
 // TurfJS Combined Types
 export type Coord = Feature<Point> | Point | Position;

packages/turf-helpers/package.json

@@ -59,7 +59,6 @@
   },
   "devDependencies": {
     "@types/benchmark": "^2.1.5",
-    "@types/deep-equal": "^1.0.4",
     "@types/tape": "^4.2.32",
     "benchmark": "^2.1.4",
     "npm-run-all": "^4.1.5",
@@ -69,7 +68,6 @@
     "typescript": "^5.2.2"
   },
   "dependencies": {
-    "deep-equal": "^2.2.3",
     "tslib": "^2.6.2"
   }
 }