Can I check the specified file？

[clen cat]

Hello!

my project is using vue2 + ts + vite + webpack . I need webpack build, but vite can't check very well. So I want to do some checks in git push pre-commit.

I wrote a script

const TsCheck = require('fork-ts-checker-webpack-plugin')
const path = require('path')
const process = require('process')
const { chalk } = require('@vue/cli-shared-utils')

const mainDir = path.resolve(__dirname, '../')

const comply = {
  done: [],
}
const compilation = {
  errors: [],
  warnings: [],
}

const tsCheck = new TsCheck({
  vue: { enabled: true, compiler: 'vue-template-compiler' },
  tslint: mainDir + '/tslint.json',
  tsconfig: mainDir + '/tsconfig.json',
  formatter: 'codeframe',
  // https://github.com/TypeStrong/ts-loader#happypackmode-boolean-defaultfalse
  checkSyntacticErrors: true,
})

tsCheck.apply({
  options: {
    context: mainDir,
  },
  hooks: {
    run: {
      tapAsync(name, run) {
        comply.run = run
      },
    },
    watchRun: {
      tapAsync(name, watchRun) {
        comply.watchRun = watchRun
      },
    },
    watchClose: {
      tap(name, watchClose) {
        comply.watchClose = watchClose
      },
    },
    compile: {
      tap(name, compile) {
        comply.compile = compile
      },
    },
    emit: {
      tapAsync(name, emit) {
        comply.emit = emit
      },
    },
    done: {
      tap(name, done) {
        comply.done.push(done)
      },
    },
  },
})

comply.run(1, () => {})
comply.compile()
comply.emit(compilation, () => {
  console.log('done')
  comply.done.forEach((done) => done())
  if (compilation.errors.length) {
    console.log()
    console.log(chalk.redBright(`Failed to compile with ${compilation.errors.length} error`))
    compilation.errors.forEach(({ message }) => {
      console.log()
      console.log(message)
    })
    process.exit(1)
  }
})

but it's slow, I want to check only modified files or specified files, Is there any good way？

Looking forward to your reply.

[Piotr Oleś]

Hi! This plugin will not help you much in terms of performance - it's optimized for watch mode and will not be faster than tsc in a single run. We're limited by the TypeScript API and as far as I know it's not possible to force TypeScript to check only some files.

By the way - I don't think type-checking only changed files will give you correct results. For example if you change type in one file, it can cause a type error in another file that wasn't touched.

[clen cat]

Hi! This plugin will not help you much in terms of performance - it's optimized for watch mode and will not be faster than tsc in a single run. We're limited by the TypeScript API and as far as I know it's not possible to force TypeScript to check only some files.

By the way - I don't think type-checking only changed files will give you correct results. For example if you change type in one file, it can cause a type error in another file that wasn't touched.

thank you very much for your reply