Duplicate loadPlugin implementation instead of exporting io file

packages/@tailwindcss-cli/src/commands/build/index.ts

@@ -7,7 +7,6 @@ import path from 'node:path'
 import postcss from 'postcss'
 import atImport from 'postcss-import'
 import * as tailwindcss from 'tailwindcss'
-import { loadPlugin } from 'tailwindcss/io'
 import type { Arg, Result } from '../../utils/args'
 import {
   eprintln,
@@ -127,9 +126,17 @@ export async function handle(args: Result<ReturnType<typeof options>>) {
 
   let inputFile = args['--input'] && args['--input'] !== '-' ? args['--input'] : process.cwd()
 
+  let basePath = path.dirname(path.resolve(inputFile))
+
   function compile(css: string) {
     return tailwindcss.compile(css, {
-      loadPlugin: loadPlugin(inputFile),
+      loadPlugin: (pluginPath) => {
+        if (pluginPath[0] === '.') {
+          return require(path.resolve(basePath, pluginPath))
+        }
+
+        return require(pluginPath)
+      },
     })
   }
 

packages/@tailwindcss-postcss/src/index.ts

@@ -1,10 +1,10 @@
 import { scanDir } from '@tailwindcss/oxide'
 import fs from 'fs'
 import { Features, transform } from 'lightningcss'
+import path from 'path'
 import postcss, { type AcceptedPlugin, type PluginCreator } from 'postcss'
 import postcssImport from 'postcss-import'
 import { compile } from 'tailwindcss'
-import { loadPlugin } from 'tailwindcss/io'
 
 /**
  * A Map that can generate default values for keys that don't exist.
@@ -131,8 +131,15 @@ function tailwindcss(opts: PluginOptions = {}): AcceptedPlugin {
         }
 
         if (rebuildStrategy === 'full') {
+          let basePath = path.dirname(path.resolve(inputFile))
           let { build } = compile(root.toString(), {
-            loadPlugin: loadPlugin(inputFile),
+            loadPlugin: (pluginPath) => {
+              if (pluginPath[0] === '.') {
+                return require(path.resolve(basePath, pluginPath))
+              }
+
+              return require(pluginPath)
+            },
           })
           context.build = build
           css = build(hasTailwind ? candidates : [])

packages/@tailwindcss-vite/src/index.ts

@@ -2,7 +2,6 @@ import { IO, Parsing, scanFiles } from '@tailwindcss/oxide'
 import { Features, transform } from 'lightningcss'
 import path from 'path'
 import { compile } from 'tailwindcss'
-import { loadPlugin } from 'tailwindcss/io'
 import type { Plugin, Rollup, Update, ViteDevServer } from 'vite'
 
 export default function tailwindcss(): Plugin[] {
@@ -74,8 +73,16 @@ export default function tailwindcss(): Plugin[] {
   }
 
   function generateCss(css: string, inputPath: string) {
+    let basePath = path.dirname(path.resolve(inputPath))
+
     return compile(css, {
-      loadPlugin: loadPlugin(inputPath),
+      loadPlugin: (pluginPath) => {
+        if (pluginPath[0] === '.') {
+          return require(path.resolve(basePath, pluginPath))
+        }
+
+        return require(pluginPath)
+      },
     }).build(Array.from(candidates))
   }
 

packages/tailwindcss/package.json

@@ -23,11 +23,6 @@
       "require": "./dist/lib.js",
       "import": "./src/index.ts"
     },
-    "./io": {
-      "types": "./src/io.ts",
-      "require": "./dist/io.js",
-      "import": "./src/io.ts"
-    },
     "./package.json": "./package.json",
     "./index.css": "./index.css",
     "./index": "./index.css",

packages/tailwindcss/tsup.config.ts

@@ -7,6 +7,5 @@ export default defineConfig({
   dts: true,
   entry: {
     lib: 'src/index.ts',
-    io: 'src/io.ts',
   },
 })