Function generateBundle

packages/vite/src/node/plugins/asset.ts:265–312

(_, bundle)

      : {}),

    generateBundle(_, bundle) {
      // Remove empty entry point file
      let importedFiles: Set<string> | undefined
      for (const file in bundle) {
        const chunk = bundle[file]
        if (
          chunk.type === 'chunk' &&
          chunk.isEntry &&
          chunk.moduleIds.length === 1 &&
          config.assetsInclude(chunk.moduleIds[0]) &&
          this.getModuleInfo(chunk.moduleIds[0])?.meta['vite:asset']
        ) {
          if (!importedFiles) {
            importedFiles = new Set()
            for (const file in bundle) {
              const chunk = bundle[file]
              if (chunk.type === 'chunk') {
                for (const importedFile of chunk.imports) {
                  importedFiles.add(importedFile)
                }
                for (const importedFile of chunk.dynamicImports) {
                  importedFiles.add(importedFile)
                }
              }
            }
          }
          if (!importedFiles.has(file)) {
            delete bundle[file]
          }
        }
      }

      // do not emit assets for SSR build
      if (
        config.command === 'build' &&
        !this.environment.config.build.emitAssets
      ) {
        for (const file in bundle) {
          if (
            bundle[file].type === 'asset' &&
            !file.endsWith('ssr-manifest.json') &&
            !jsSourceMapRE.test(file)
          ) {
            delete bundle[file]
          }
        }
      }
    },

    watchChange(id) {
      assetCache.get(this.environment)?.delete(normalizePath(id))