fix(vite): bake package version in at build time

getPackageVersion() read package.json at runtime via import.meta.url. When a
consumer imports the plugin inside vite.config.ts, Vite bundles the config with
esbuild and rewrites import.meta.url, so the read failed and the injected
`data-rep-version` (and `_meta.version`) fell back to "0.0.0".

Inject the version via a tsup `define` (tsup.config.ts) so it is baked into the
bundle at build time, independent of how the consumer loads the plugin.

Author: olamide226

plugins/vite/package.json

@@ -34,7 +34,7 @@
     "dist"
   ],
   "scripts": {
-    "build": "tsup src/index.ts --format cjs,esm --dts",
+    "build": "tsup",
     "test": "vitest run",
     "test:watch": "vitest",
     "typecheck": "tsc --noEmit"

plugins/vite/src/index.ts

@@ -1,29 +1,28 @@
-import { resolve, dirname } from 'node:path';
-import { readFileSync } from 'node:fs';
-import { fileURLToPath } from 'node:url';
+import { resolve } from 'node:path';
 import type { Plugin, ViteDevServer, HtmlTagDescriptor } from 'vite';
 import { generateKeys, type Keys } from './crypto.js';
 import { readAndClassify, type ClassifiedVars } from './env.js';
 import { scanValue } from './guardrails.js';
 import { buildPayload, type PayloadResult } from './payload.js';
 
+// Injected at build time by tsup (see tsup.config.ts). Reading package.json at
+// runtime via import.meta.url is unreliable here: consumers import this plugin
+// inside vite.config.ts, which Vite bundles with esbuild — that rewrites
+// import.meta.url, so the runtime read fails and the version falls back to
+// 0.0.0. Baking the version in at build time avoids that entirely.
+declare const __REP_VITE_VERSION__: string;
+
+function getPackageVersion(): string {
+  return typeof __REP_VITE_VERSION__ === 'string' ? __REP_VITE_VERSION__ : '0.0.0';
+}
+
 export interface RepPluginOptions {
   /** Path to env file, relative to project root. Default: '.env.local' */
   env?: string;
   /** Enable strict mode — guardrail warnings become errors. Default: false */
   strict?: boolean;
 }
 
-function getPackageVersion(): string {
-  try {
-    const pkgPath = resolve(dirname(fileURLToPath(import.meta.url)), '..', 'package.json');
-    const pkg = JSON.parse(readFileSync(pkgPath, 'utf-8'));
-    return pkg.version;
-  } catch {
-    return '0.0.0';
-  }
-}
-
 export function repPlugin(options: RepPluginOptions = {}): Plugin {
   const envFile = options.env ?? '.env.local';
   const strict = options.strict ?? false;

plugins/vite/tsup.config.ts

@@ -0,0 +1,15 @@
+import { defineConfig } from 'tsup';
+import { readFileSync } from 'node:fs';
+
+const { version } = JSON.parse(readFileSync(new URL('./package.json', import.meta.url), 'utf-8'));
+
+export default defineConfig({
+  entry: ['src/index.ts'],
+  format: ['cjs', 'esm'],
+  dts: true,
+  // Bake the package version in at build time so it survives consumers that
+  // bundle their vite.config (which would otherwise rewrite import.meta.url).
+  define: {
+    __REP_VITE_VERSION__: JSON.stringify(version),
+  },
+});