babel-plugin-add-filehash

7.6.0 verified Sat Apr 25 auth: no javascript maintenance

A Babel plugin that forces output to change whenever the input file changes, even for trivial/whitespace changes. Version 7.6.0 is current, but the primary use case (forcing Webpack to show updated eslint messages on unchanged files) has been obsolete since Webpack v3.5.4 fixed the underlying issue. The plugin remains functional for anyone needing deterministic output changes, but it is effectively a legacy tool. It has no dependencies beyond Babel itself and is a zero-config plugin.

Common errors

error Error: [BABEL] unknown: The filehash plugin hasn't generated any changes. (While processing: /path/to/file.js) ↓

cause Plugin may not add hash if file already contains output hash or if configuration conflicts.

fix

Verify plugin is correctly listed in plugins array. Check for other plugins that may suppress output.

Warnings

deprecated Plugin is unnecessary for modern Webpack (>=3.5.4). Original use case fixed. ↓

fix Remove plugin from configuration if using Webpack v3.5.4+.

Install

npm install babel-plugin-add-filehash

yarn add babel-plugin-add-filehash

pnpm add babel-plugin-add-filehash

Imports

plugin (default)
wrong
```
import addFilehash from 'babel-plugin-add-filehash'
```
correct
```
module.exports = {
  plugins: ['add-filehash']
}
```
This is a Babel plugin, not imported directly in user code. Used via .babelrc or babel.config.js as a string reference.

Quickstart

Shows how to enable the plugin in Babel configuration.

// .babelrc or babel.config.js
{
  "plugins": [
    ["add-filehash", {
      // Optional: specify which comment to add hash to
      // Default: adds hash as file comment
    }]
  ]
}