From fb510879a7cbe1a1f9dee106717a925cc38495d0 Mon Sep 17 00:00:00 2001
From: James Garbutt <43081j@users.noreply.github.com>
Date: Tue, 23 Jun 2026 14:57:18 +0100
Subject: [PATCH] perf: remove string-width

We can use fast-string-width instead which is much faster and smaller, already in wide use too.
---
 package-lock.json                | 49 +++++++++++++-------------------
 packages/build/package.json      |  2 +-
 packages/build/src/log/header.ts |  2 +-
 3 files changed, 21 insertions(+), 32 deletions(-)

diff --git a/package-lock.json b/package-lock.json
index 9facd1e11c..b40012366b 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -11063,10 +11063,6 @@
         "url": "https://github.com/sindresorhus/emittery?sponsor=1"
       }
     },
-    "node_modules/emoji-regex": {
-      "version": "10.6.0",
-      "license": "MIT"
-    },
     "node_modules/empathic": {
       "version": "2.0.1",
       "license": "MIT",
@@ -12360,6 +12356,21 @@
       "version": "2.1.1",
       "license": "MIT"
     },
+    "node_modules/fast-string-truncated-width": {
+      "version": "3.0.3",
+      "resolved": "https://registry.npmjs.org/fast-string-truncated-width/-/fast-string-truncated-width-3.0.3.tgz",
+      "integrity": "sha512-0jjjIEL6+0jag3l2XWWizO64/aZVtpiGE3t0Zgqxv0DPuxiMjvB3M24fCyhZUO4KomJQPj3LTSUnDP3GpdwC0g==",
+      "license": "MIT"
+    },
+    "node_modules/fast-string-width": {
+      "version": "3.0.2",
+      "resolved": "https://registry.npmjs.org/fast-string-width/-/fast-string-width-3.0.2.tgz",
+      "integrity": "sha512-gX8LrtNEI5hq8DVUfRQMbr5lpaS4nMIWV+7XEbXk2b8kiQIizgnlr12B4dA3ZEx3308ze0O4Q1R+cHts8kyUJg==",
+      "license": "MIT",
+      "dependencies": {
+        "fast-string-truncated-width": "^3.0.2"
+      }
+    },
     "node_modules/fast-stringify": {
       "version": "4.0.0",
       "license": "MIT"
@@ -12753,6 +12764,9 @@
     },
     "node_modules/fsevents": {
       "version": "2.3.2",
+      "resolved": "https://registry.npmjs.org/fsevents/-/fsevents-2.3.3.tgz",
+      "integrity": "sha512-5xoDfX+fL7faATnagmWPpbFtwh/R77WmMMqqHGS65C3vvB0YHrgF+B1YmZ3441tMj5n63k0212XNoJwzlhffQw==",
+      "hasInstallScript": true,
       "license": "MIT",
       "optional": true,
       "os": [
@@ -12833,16 +12847,6 @@
         "node": "6.* || 8.* || >= 10.*"
       }
     },
-    "node_modules/get-east-asian-width": {
-      "version": "1.6.0",
-      "license": "MIT",
-      "engines": {
-        "node": ">=18"
-      },
-      "funding": {
-        "url": "https://github.com/sponsors/sindresorhus"
-      }
-    },
     "node_modules/get-intrinsic": {
       "version": "1.3.0",
       "license": "MIT",
@@ -20183,21 +20187,6 @@
         "safe-buffer": "~5.2.0"
       }
     },
-    "node_modules/string-width": {
-      "version": "7.2.0",
-      "license": "MIT",
-      "dependencies": {
-        "emoji-regex": "^10.3.0",
-        "get-east-asian-width": "^1.0.0",
-        "strip-ansi": "^7.1.0"
-      },
-      "engines": {
-        "node": ">=18"
-      },
-      "funding": {
-        "url": "https://github.com/sponsors/sindresorhus"
-      }
-    },
     "node_modules/string-width-cjs": {
       "name": "string-width",
       "version": "4.2.3",
@@ -22962,6 +22951,7 @@
         "ansis": "^4.1.0",
         "clean-stack": "^5.0.0",
         "execa": "^8.0.0",
+        "fast-string-width": "^3.0.2",
         "fdir": "^6.0.1",
         "figures": "^6.0.0",
         "filter-obj": "^6.0.0",
@@ -22989,7 +22979,6 @@
         "rfdc": "^1.3.0",
         "safe-json-stringify": "^1.2.0",
         "semver": "^7.3.8",
-        "string-width": "^7.0.0",
         "supports-color": "^10.0.0",
         "terminal-link": "^4.0.0",
         "ts-node": "^10.9.1",
diff --git a/packages/build/package.json b/packages/build/package.json
index 0c14b26cfe..e057c33736 100644
--- a/packages/build/package.json
+++ b/packages/build/package.json
@@ -82,6 +82,7 @@
     "ansis": "^4.1.0",
     "clean-stack": "^5.0.0",
     "execa": "^8.0.0",
+    "fast-string-width": "^3.0.2",
     "fdir": "^6.0.1",
     "figures": "^6.0.0",
     "filter-obj": "^6.0.0",
@@ -109,7 +110,6 @@
     "rfdc": "^1.3.0",
     "safe-json-stringify": "^1.2.0",
     "semver": "^7.3.8",
-    "string-width": "^7.0.0",
     "supports-color": "^10.0.0",
     "terminal-link": "^4.0.0",
     "ts-node": "^10.9.1",
diff --git a/packages/build/src/log/header.ts b/packages/build/src/log/header.ts
index 93dd8186a1..0999fd9ccb 100644
--- a/packages/build/src/log/header.ts
+++ b/packages/build/src/log/header.ts
@@ -1,4 +1,4 @@
-import stringWidth from 'string-width'
+import stringWidth from 'fast-string-width'
 
 const HEADER_MIN_WIDTH = 60
 const PADDING_WIDTH = 2