feat: sourcemap support

packages/nitro/src/context.ts

@@ -17,6 +17,7 @@ export interface SigmaContext {
   timing: boolean
   inlineChunks: boolean
   minify: boolean
+  sourceMap: boolean
   externals: boolean
   analyze: boolean
   entry: string
@@ -66,6 +67,7 @@ export function getsigmaContext (nuxtOptions: NuxtOptions, input: SigmaInput): S
     timing: true,
     inlineChunks: true,
     minify: true,
+    sourceMap: false,
     externals: false,
     analyze: false,
     entry: undefined,

packages/nitro/src/presets/local.ts

@@ -10,5 +10,6 @@ export const local: SigmaPreset = extendPreset(node, {
   minify: false,
   externals: true,
   inlineChunks: true,
-  timing: true
+  timing: false,
+  sourceMap: true
 })

packages/nitro/src/rollup/config.ts

@@ -50,7 +50,10 @@ export const getRollupConfig = (sigmaContext: SigmaContext) => {
   }
 
   const env = un.env(nodePreset, builtinPreset, sigmaContext.env)
-  // console.log(env)
+
+  if (sigmaContext.sourceMap) {
+    env.polyfill.push('source-map-support/register')
+  }
 
   const buildServerDir = join(sigmaContext._nuxt.buildDir, 'dist/server')
   const runtimeAppDir = join(sigmaContext._internal.runtimeDir, 'app')
@@ -82,7 +85,12 @@ export const getRollupConfig = (sigmaContext: SigmaContext) => {
       exports: 'auto',
       intro: '',
       outro: '',
-      preferConst: true
+      preferConst: true,
+      sourcemap: sigmaContext.sourceMap,
+      sourcemapExcludeSources: true,
+      sourcemapPathTransform (relativePath, sourcemapPath) {
+        return resolve(dirname(sourcemapPath), relativePath)
+      }
     },
     external: env.external,
     plugins: [],
@@ -112,8 +120,10 @@ export const getRollupConfig = (sigmaContext: SigmaContext) => {
     }
   }))
 
-  // ESBuild (typescript)
-  rollupConfig.plugins.push(esbuild({}))
+  // ESBuild
+  rollupConfig.plugins.push(esbuild({
+    sourceMap: true
+  }))
 
   // Dynamic Require Support
   rollupConfig.plugins.push(dynamicRequire({

packages/nitro/src/rollup/plugins/dynamic-require.ts

@@ -33,7 +33,10 @@ export function dynamicRequire ({ dir, globbyOptions, inline }: Options): Plugin
   return {
     name: PLUGIN_NAME,
     transform (code: string, _id: string) {
-      return code.replace(DYNAMIC_REQUIRE_RE, `require('${HELPER_DYNAMIC}')(`)
+      return {
+        code: code.replace(DYNAMIC_REQUIRE_RE, `require('${HELPER_DYNAMIC}')(`),
+        map: null
+      }
     },
     resolveId (id: string) {
       return id === HELPER_DYNAMIC ? id : null

packages/nitro/src/rollup/plugins/esbuild.ts

@@ -6,7 +6,8 @@ import { startService, Loader, Service, TransformResult } from 'esbuild'
 import { createFilter, FilterPattern } from '@rollup/pluginutils'
 
 const defaultLoaders: { [ext: string]: Loader } = {
-  '.ts': 'ts'
+  '.ts': 'ts',
+  '.js': 'js'
 }
 
 export type Options = {

packages/nitro/src/rollup/plugins/timing.ts

@@ -31,7 +31,10 @@ export function timing (_opts: Options = {}): Plugin {
       let name = chunk.fileName || ''
       name = name.replace(extname(name), '')
       const logName = name === 'index' ? 'Cold Start' : ('Load ' + name)
-      return "'use strict';" + (chunk.isEntry ? HELPER : '') + `${TIMING}.logStart('${logName}');` + code + `;${TIMING}.logEnd('${logName}');`
+      return {
+        code: (chunk.isEntry ? HELPER : '') + `${TIMING}.logStart('${logName}');` + code + `;${TIMING}.logEnd('${logName}');`,
+        map: null
+      }
     }
   }
 }