Registry / devops / eslint-webpack-migrate

eslint-webpack-migrate

library0.1.0jsnpmunverified

Migration helpers for replacing the deprecated eslint-loader with eslint-webpack-plugin in webpack configurations. Current version 0.1.0, released with Node >=18 support. Scans plain webpack config objects, removes eslint-loader references, extracts plugin options, and returns install guidance. Zero runtime dependencies, ships TypeScript types. Not affiliated with the original maintainers. Suitable for projects transitioning away from the deprecated eslint-loader pattern, offering a structured migration path without requiring webpack or the plugin at runtime.

devops

npm install eslint-webpack-migrate

github ↗package ↗homepage ↗

INSTALL

IMPORT

SIG · ESLINT-WEBPACK-MIG

eslint-webpack-migrate

devopsjavascriptv0.1.0

harness data pending

Install & Compatibility

Where this runs

No compatibility data collected yet for this library.

Code

Verified usage

Verified import paths — ran on the pinned version, not inferred.

migrateEslintLoaderConfig

✓ import { migrateEslintLoaderConfig } from 'eslint-webpack-migrate'

✗ const { migrateEslintLoaderConfig } = require('eslint-webpack-migrate')

ESM-only since v0.1.0; no CommonJS support.

hasEslintLoader

✓ import { hasEslintLoader } from 'eslint-webpack-migrate'

Named export, no default export.

recommendedInstall

✓ import { recommendedInstall } from 'eslint-webpack-migrate'

Returns a string with install command; no TypeScript type export.

type MigrationResult

✓ import type { MigrationResult } from 'eslint-webpack-migrate'

✗ import { MigrationResult } from 'eslint-webpack-migrate'

TypeScript users should use type import to avoid runtime errors; the symbol is only a type.

Migrates an eslint-loader config to eslint-webpack-plugin, showing removed loader and generated plugin options.

import { migrateEslintLoaderConfig } from 'eslint-webpack-migrate'; const webpackConfig = { module: { rules: [ { test: /\.ts$/, use: [ 'eslint-loader', { loader: 'eslint-loader', options: { fix: true } } ] } ] } }; const result = migrateEslintLoaderConfig(webpackConfig); console.log('Migrated config:', JSON.stringify(result.config, null, 2)); console.log('Plugin options:', JSON.stringify(result.pluginOptions, null, 2)); console.log('Install command:', result.install);

Debug

Known issues

breakingOnly ESM imports supported; require() will throw an error.

fix

Use import syntax or switch to an ES module project.

affects: >=0.1.0

breakingNode.js version must be >=18.

fix

Upgrade Node.js to version 18 or higher.

affects: >=0.1.0

deprecatedeslint-loader is deprecated; this package only helps migrate away from it.

fix

Replace eslint-loader with eslint-webpack-plugin as guided.

affects: >=0.1.0

gotchaPackage not affiliated with original eslint-loader or eslint-webpack-plugin maintainers; no official support.

fix

Verify migration output and report issues to the package repository.

affects: >=0.1.0

gotchamigrateEslintLoaderConfig only handles loader references in rules; does not touch config plugins or other areas.

fix

Manually inspect config after migration for any additional references.

affects: >=0.1.0

gotchaFunction returns a new config object; original is not mutated but references within may be shared.

fix

Treat returned config as a deep copy; do not rely on immutability of nested objects.

affects: >=0.1.0

Errors

Common errors & fixes

TypeError: migrateEslintLoaderConfig is not a function

Using require() instead of import; package is ESM-only.

fix

Change to import { migrateEslintLoaderConfig } from 'eslint-webpack-migrate' and ensure project uses ES modules.

ERR_REQUIRE_ESM: require() of ES Module not supported

Attempting to require() an ESM-only package.

fix

Switch to import syntax or set type: 'module' in package.json.

Uncaught SyntaxError: Unexpected token 'export'

Bundler not configured for ESM or Node version <18.

fix

Upgrade Node to >=18, or configure bundler to handle ESM.

TypeScript: Module '"eslint-webpack-migrate"' has no exported member 'migrateEslintLoaderConfig'

Importing a type as a value (e.g., MigrationResult).

fix

Use 'import type' for types: import type { MigrationResult } from 'eslint-webpack-migrate'.

Upgrade

Version history

0.1.0latest on npm

Audit

Dependencies

eslint-webpack-pluginoptionaltarget plugin for migration output

webpackoptionalconfig object traversal may reference webpack internals

Agent activity

2 hits · last 30 days

node

Resources

githubhttps://github.com/iexitdev/eslint-webpack-migrate ↗

packageeslint-webpack-migrate ↗

homepagehttps://github.com/iexitdev/eslint-webpack-migrate#readme ↗