Support raw data imports (#296)

src/build-config.ts

@@ -20,6 +20,7 @@ import replace from '@rollup/plugin-replace'
 import esmShim from '@rollup/plugin-esm-shim'
 import { sizeCollector } from './plugins/size-plugin'
 import { inlineCss } from './plugins/inline-css'
+import { rawContent } from './plugins/raw-plugin'
 import preserveDirectives from 'rollup-preserve-directives'
 import {
   getTypings,
@@ -175,6 +176,7 @@ async function buildInputConfig(
       : [
           ...commonPlugins,
           inlineCss({ exclude: /node_modules/ }),
+          rawContent({ exclude: /node_modules/ }),
           preserveDirectives(),
           replace({
             values: getBuildEnv(options.env || []),

src/plugins/raw-plugin.ts

@@ -0,0 +1,22 @@
+import { type FilterPattern, createFilter } from '@rollup/pluginutils'
+import type { Plugin } from 'rollup'
+
+export function rawContent({ exclude }: { exclude: FilterPattern }): Plugin {
+  /\.(data|txt)$/
+  const filter = createFilter(['**/*.data', '**/*.txt'], exclude)
+
+  return {
+    name: "string",
+
+    transform(code, id) {
+      if (filter(id)) {
+        return {
+          code: `export default ${JSON.stringify(code)}`,
+          map: undefined,
+        }
+      }
+      return undefined
+    }
+  }
+}
+

test/integration.test.ts

@@ -389,6 +389,17 @@ const testCases: {
       expect(cjsOutput).not.toContain('import.meta.url')
     },
   },
+  {
+    name: 'raw-data',
+    args: [],
+    async expected(dir) {
+      const distFile = join(dir, './dist/index.js')
+      expect(await existsFile(distFile)).toBe(true)
+      expect(await fs.readFile(distFile, 'utf-8')).toContain(
+        `"thisismydata"`,
+      )
+    },
+  }
 ]
 
 async function runBundle(

test/integration/raw-data/package.json

@@ -0,0 +1,4 @@
+{
+  "type": "module",
+  "exports": "./dist/index.js"
+}

test/integration/raw-data/src/content.txt

@@ -0,0 +1 @@
+thisismydata

test/integration/raw-data/src/index.js

@@ -0,0 +1,3 @@
+import content from './content.txt'
+
+export const data = content