rsnext/packages/next/build/output/store.ts
2020-05-27 17:51:11 -04:00

87 lines
2 KiB
TypeScript

import createStore from 'next/dist/compiled/unistore'
import stripAnsi from 'next/dist/compiled/strip-ansi'
import * as Log from './log'
export type OutputState =
| { bootstrap: true; appUrl: string | null }
| ({ bootstrap: false; appUrl: string | null } & (
| { loading: true }
| {
loading: false
typeChecking: boolean
errors: string[] | null
warnings: string[] | null
}
))
export const store = createStore<OutputState>({ appUrl: null, bootstrap: true })
let lastStore: OutputState = { appUrl: null, bootstrap: true }
function hasStoreChanged(nextStore: OutputState) {
if (
([
...new Set([...Object.keys(lastStore), ...Object.keys(nextStore)]),
] as Array<keyof OutputState>).every((key) =>
Object.is(lastStore[key], nextStore[key])
)
) {
return false
}
lastStore = nextStore
return true
}
store.subscribe((state) => {
if (!hasStoreChanged(state)) {
return
}
if (state.bootstrap) {
if (state.appUrl) {
Log.ready(`started server on ${state.appUrl}`)
}
return
}
if (state.loading) {
Log.wait('compiling...')
return
}
if (state.errors) {
Log.error(state.errors[0])
const cleanError = stripAnsi(state.errors[0])
if (cleanError.indexOf('SyntaxError') > -1) {
const matches = cleanError.match(/\[.*\]=/)
if (matches) {
for (const match of matches) {
const prop = (match.split(']').shift() || '').substr(1)
console.log(
`AMP bind syntax [${prop}]='' is not supported in JSX, use 'data-amp-bind-${prop}' instead. https://err.sh/vercel/next.js/amp-bind-jsx-alt`
)
}
return
}
}
return
}
if (state.warnings) {
Log.warn(state.warnings.join('\n\n'))
if (state.appUrl) {
Log.info(`ready on ${state.appUrl}`)
}
return
}
if (state.typeChecking) {
Log.info('bundled successfully, waiting for typecheck results...')
return
}
Log.event('compiled successfully')
})