From 932ad367b5b37ea0f3c559b13691bdb8f1ef9d8e Mon Sep 17 00:00:00 2001
From: James Garbutt <43081j@users.noreply.github.com>
Date: Tue, 6 May 2025 12:31:54 +0100
Subject: [PATCH] perf: switch to `empathic` find package traversal

Uses `empathic/find` for finding the closest `package.json`, a much
faster and smaller library than the various over-specialised
alternatives lying around.
---
 package.json | 2 +-
 src/cache.js | 2 +-
 yarn.lock    | 9 ++++++++-
 3 files changed, 10 insertions(+), 3 deletions(-)

diff --git a/package.json b/package.json
index 907d927e..f2c89251 100644
--- a/package.json
+++ b/package.json
@@ -10,7 +10,7 @@
     "node": "^18.20.0 || ^20.10.0 || >=22.0.0"
   },
   "dependencies": {
-    "find-up": "^5.0.0"
+    "empathic": "^1.1.0"
   },
   "peerDependencies": {
     "@babel/core": "^7.12.0",
diff --git a/src/cache.js b/src/cache.js
index 7d953f3b..9879dc0a 100644
--- a/src/cache.js
+++ b/src/cache.js
@@ -12,7 +12,7 @@ const path = require("path");
 const zlib = require("zlib");
 const { promisify } = require("util");
 const { readFile, writeFile, mkdir } = require("fs/promises");
-const { sync: findUpSync } = require("find-up");
+const { up: findUpSync } = require("empathic/find");
 const { env } = process;
 const transform = require("./transform");
 const serialize = require("./serialize");
diff --git a/yarn.lock b/yarn.lock
index d542600b..133e0551 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -1956,10 +1956,10 @@ __metadata:
     "@babel/eslint-parser": ^7.23.3
     "@babel/preset-env": ^7.23.3
     c8: ^10.1.2
+    empathic: ^1.1.0
     eslint: ^9.6.0
     eslint-config-prettier: ^9.1.0
     eslint-plugin-prettier: ^5.1.3
-    find-up: ^5.0.0
     globals: ^15.8.0
     husky: ^9.1.5
     lint-staged: ^15.2.9
@@ -2376,6 +2376,13 @@ __metadata:
   languageName: node
   linkType: hard
 
+"empathic@npm:^1.1.0":
+  version: 1.1.0
+  resolution: "empathic@npm:1.1.0"
+  checksum: 1e41763802f14e5fa2522063f8f93e161c64916698f39e493a3e274356e39aa6f60d60f33063c92f9d5c5426fd33d9cb33baed2885a194648254181ce5495a9c
+  languageName: node
+  linkType: hard
+
 "encoding@npm:^0.1.13":
   version: 0.1.13
   resolution: "encoding@npm:0.1.13"