chore: make build script more generic

deno.json

@@ -1,6 +1,15 @@
 {
   "name": "prettier-plugin-vitepress",
   "version": "0.0.5",
+  "description": "a prettier plugin to format vue in markdown syntax used in vitepress",
+  "keywords": ["prettier", "vitepress", "vue", "markdown"],
+  "repository": {
+    "type": "git",
+    "url": "git+https://github.com/brc-dd/prettier-plugin-vitepress.git"
+  },
+  "funding": "https://github.com/sponsors/brc-dd",
+  "license": "MIT",
+  "author": "Divyansh Singh <[email protected]> (https://github.com/brc-dd)",
   "exports": "./src/index.ts",
   "compilerOptions": {
     "noFallthroughCasesInSwitch": true,

scripts/build.ts

@@ -4,47 +4,59 @@ import * as esbuild from 'esbuild'
 import tsid from 'unplugin-isolated-decl/esbuild'
 import denoJson from '../deno.json' with { type: 'json' }
 
+const pick = [
+  'name',
+  'version',
+  'description',
+  'keywords',
+  'repository',
+  'funding',
+  'license',
+  'author',
+] as const
+
+const peerDeps = ['prettier'] as const
+const minify = Deno.env.get('CI') === 'true'
+const exports = typeof denoJson.exports === 'string' ? { '.': denoJson.exports } : denoJson.exports
+
 await emptyDir('dist')
 
-await esbuild.build({
-  plugins: [
-    tsid(),
-    ...denoPlugins(),
-  ],
-  entryPoints: [denoJson.exports],
+const res = await esbuild.build({
+  plugins: [tsid(), ...denoPlugins()],
+  entryPoints: Object.values(exports),
   outdir: 'dist',
   bundle: true,
   format: 'esm',
   platform: 'neutral',
   target: 'es2022',
   external: ['prettier'],
-  minify: !!Deno.env.get('CI'),
+  metafile: true,
+  minify,
 })
 
+const outputs = Object.fromEntries(
+  Object.entries(res.metafile.outputs).flatMap(([key, value]) =>
+    value.entryPoint ? [['./' + value.entryPoint, key.replace('dist/', './')]] : []
+  ),
+)
+
 await Deno.writeTextFile(
   'dist/package.json',
-  JSON.stringify({
-    name: denoJson.name,
-    version: denoJson.version,
-    description: 'a prettier plugin to format vue in markdown syntax used in vitepress',
-    keywords: ['prettier', 'vitepress', 'vue', 'markdown'],
-    repository: {
-      type: 'git',
-      url: 'git+https://github.com/brc-dd/prettier-plugin-vitepress.git',
-    },
-    funding: 'https://github.com/sponsors/brc-dd',
-    license: 'MIT',
-    author: 'Divyansh Singh <[email protected]> (https://github.com/brc-dd)',
-    sideEffects: false,
-    type: 'module',
-    main: 'index.js',
-    peerDependencies: {
-      prettier: denoJson.imports.prettier.split('@')[1],
+  JSON.stringify(
+    {
+      ...Object.fromEntries(pick.map((key) => [key, denoJson[key]])),
+      type: 'module',
+      exports: Object.fromEntries(
+        Object.entries(exports).map(([key, value]) => [key, outputs[value]]),
+      ),
+      peerDependencies: Object.fromEntries(
+        peerDeps.map((dep) => [dep, denoJson.imports[dep].split('@')[1]]),
+      ),
     },
-  }),
+    null,
+    minify ? 0 : 2,
+  ),
 )
 
 await Deno.copyFile('LICENSE.md', 'dist/LICENSE.md')
 await Deno.copyFile('README.md', 'dist/README.md')
-
-// TODO: make it more generic