feat(cli): support also initialization

README.md

@@ -87,13 +87,13 @@ For example:
 
 ### Migration
 
-We provided an experimental cli tool to help you migrate from the legacy config to the new flat config.
+We provided an experimental CLI tool to help you migrate from the legacy config to the new flat config.
 
 ```bash
-npx @antfu/eslint-config migrate
+npx @antfu/eslint-config@latest
 ```
 
-Before running the migration, make sure to commit your changes first.
+Before running the migration, make sure to commit your unsaved changes first.
 
 ## VS Code support (auto fix)
 

src/cli/index.ts

@@ -14,15 +14,16 @@ const instance = yargs(hideBin(process.argv))
   .scriptName('@antfu/eslint-config')
   .usage('')
   .command(
-    'migrate',
-    'Migrate from legacy config to new flat config',
+    '*',
+    'Run the initialization or migration',
     args => args
+      .option('yes', { alias: 'y', description: 'Skip prompts and use default values', type: 'boolean' })
       .help(),
-    async (_args) => {
+    async (args) => {
       header()
       console.log()
       try {
-        await run()
+        await run(args)
       }
       catch (error) {
         console.error(c.inverse(c.red(' Failed to migrate ')))
@@ -31,10 +32,6 @@ const instance = yargs(hideBin(process.argv))
       }
     },
   )
-  .command('*', false, args => args, () => {
-    header()
-    instance.showHelp()
-  })
   .showHelpOnFail(false)
   .alias('h', 'help')
   .version('version', version)

src/cli/run.ts

@@ -11,10 +11,17 @@ import parse from 'parse-gitignore'
 import { ARROW, CHECK, WARN, version, vscodeSettingsString } from './constants'
 import { isGitClean } from './utils'
 
-const SKIP_PROMPT = !!process.env.SKIP_PROMPT
-const SKIP_GIT_CHECK = !!process.env.SKIP_GIT_CHECK
+export interface RuleOptions {
+  /**
+   * Skip prompts and use default values
+   */
+  yes?: boolean
+}
+
+export async function run(options: RuleOptions = {}) {
+  const SKIP_PROMPT = !!process.env.SKIP_PROMPT || options.yes
+  const SKIP_GIT_CHECK = !!process.env.SKIP_GIT_CHECK
 
-export async function run() {
   const cwd = process.cwd()
 
   const pathFlatConfig = path.join(cwd, 'eslint.config.js')
@@ -37,6 +44,9 @@ export async function run() {
   pkg.devDependencies ??= {}
   pkg.devDependencies['@antfu/eslint-config'] = `^${version}`
 
+  if (!pkg.devDependencies.eslint)
+    pkg.devDependencies.eslint = '^8'
+
   await fsp.writeFile(pathPackageJSON, JSON.stringify(pkg, null, 2))
   console.log(c.green(`${CHECK} changes wrote to package.json`))