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fix: enable failing dependencies to be optimised by pre-processing them with esbuild #4275

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merged 6 commits into from Aug 23, 2021
Merged

fix: enable failing dependencies to be optimised by pre-processing them with esbuild #4275

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0b41650
fix: enable JSX dependencies to be optimised
fwouts Jul 16, 2021
939dc27
fix: switch from a warning to a debug statement
fwouts Jul 16, 2021
a88f5b4
fix: ensure you don't need any custom esbuild options
fwouts Jul 16, 2021
3707279
fix: use transformWithEsBuild()
fwouts Aug 21, 2021
45f5d5d
fix: use spread syntax to avoid mutating esbuildOptions outside the f…
fwouts Aug 22, 2021
00e4aa6
fix: do not duplicate esbuildOptions
fwouts Aug 22, 2021
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30 changes: 24 additions & 6 deletions packages/vite/src/node/optimizer/index.ts
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Expand Up @@ -15,6 +15,7 @@ import {
import { esbuildDepPlugin } from './esbuildDepPlugin'
import { ImportSpecifier, init, parse } from 'es-module-lexer'
import { scanImports } from './scan'
import { transformWithEsbuild } from '../plugins/esbuild'

const debug = createDebugger('vite:deps')

Expand Down Expand Up @@ -237,12 +238,32 @@ export async function optimizeDeps(
const idToExports: Record<string, ExportsData> = {}
const flatIdToExports: Record<string, ExportsData> = {}

const { plugins = [], ...esbuildOptions } =
config.optimizeDeps?.esbuildOptions ?? {}

await init
for (const id in deps) {
const flatId = flattenId(id)
flatIdDeps[flatId] = deps[id]
const entryContent = fs.readFileSync(deps[id], 'utf-8')
const exportsData = parse(entryContent) as ExportsData
const filePath = (flatIdDeps[flatId] = deps[id])
const entryContent = fs.readFileSync(filePath, 'utf-8')
let exportsData: ExportsData
try {
exportsData = parse(entryContent) as ExportsData
} catch {
debug(
`Unable to parse dependency: ${id}. Trying again with a JSX transform.`
)
const transformed = await transformWithEsbuild(entryContent, filePath, {
loader: 'jsx'
})
// Ensure that optimization won't fail by defaulting '.js' to the JSX parser.
// This is useful for packages such as Gatsby.
esbuildOptions.loader = {
'.js': 'jsx',
...esbuildOptions.loader
}
exportsData = parse(transformed.code) as ExportsData
}
for (const { ss, se } of exportsData[0]) {
const exp = entryContent.slice(ss, se)
if (/export\s+\*\s+from/.test(exp)) {
Expand All @@ -263,9 +284,6 @@ export async function optimizeDeps(

const start = Date.now()

const { plugins = [], ...esbuildOptions } =
config.optimizeDeps?.esbuildOptions ?? {}

const result = await build({
absWorkingDir: process.cwd(),
entryPoints: Object.keys(flatIdDeps),
Expand Down