esbuild-fix-imports-plugin
v1.0.6
Published
An ESBuild plugin that fixes import paths by applying fixAliasPlugin, fixFolderImportsPlugin, and fixExtensionsPlugin. It ensures correct file extensions, resolves path aliases, and fixes directory imports in your build output when using 'tsup' with 'bund
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esbuild-fix-imports-plugin
An ESBuild plugin that fixes import paths by applying the following plugins:
fixAliasPlugin
: Resolves path aliases defined intsconfig.json
.fixFolderImportsPlugin
: Replaces imports pointing to directories with explicit paths to theindex
file.fixExtensionsPlugin
: Appends the correct file extensions to relative import paths.
This plugin ensures correct file extensions, resolves path aliases, and fixes directory imports in your build output when using tsup
with bundle: false
.
Table of Contents
Installation
Install the package via npm:
npm install esbuild-fix-imports-plugin
Or using pnpm:
pnpm add esbuild-fix-imports-plugin
Or using Yarn:
yarn add esbuild-fix-imports-plugin
Usage
In your tsup.config.ts
or ESBuild configuration file, import the plugin and add it to your esbuildPlugins
array:
// tsup.config.ts
import { defineConfig } from "tsup";
import { fixImportsPlugin } from "esbuild-fix-imports-plugin";
export default defineConfig({
// ... your other configurations
esbuildPlugins: [fixImportsPlugin()],
});
This will apply all three plugins (fixAliasPlugin
, fixFolderImportsPlugin
, and fixExtensionsPlugin
) during the build process.
If you prefer to use the plugins individually, you can import them separately:
import {
fixAliasPlugin,
fixFolderImportsPlugin,
fixExtensionsPlugin,
} from "esbuild-fix-imports-plugin";
export default defineConfig({
// ... your other configurations
esbuildPlugins: [
fixAliasPlugin(),
fixFolderImportsPlugin(),
fixExtensionsPlugin(),
],
});
Plugins Overview
fixAliasPlugin
Description: Resolves path aliases defined in your tsconfig.json
file and replaces them with relative paths in the output files.
Use Case: When using path aliases in TypeScript, the compiled JavaScript files may contain unresolved import paths. This plugin fixes that by converting aliases to relative paths.
Requirements:
- Ensure your
tsconfig.json
includes thepaths
configuration. - Provide the path to
tsconfig.json
in yourtsup
or ESBuild configuration.
Example tsconfig.json
:
{
"compilerOptions": {
"baseUrl": ".",
"paths": {
"@utils/*": ["src/utils/*"],
"@components/*": ["src/components/*"]
}
// ... other options
}
}
fixFolderImportsPlugin
Description: Replaces import paths pointing to directories with explicit paths to the index
file.
Use Case: Some module resolvers do not automatically resolve imports to index
files within directories. This plugin ensures that imports like import { myFunction } from './utils';
are transformed to import { myFunction } from './utils/index';
.
fixExtensionsPlugin
Description: Appends the correct file extensions (.js
, .mjs
, .cjs
) to relative import paths in the output files.
Use Case: In environments that require explicit file extensions in import statements, this plugin ensures that all relative imports have the correct extensions, preventing runtime errors.
Example Configuration
Here's a full example of how to configure tsup
with this plugin:
// tsup.config.ts
import { defineConfig } from "tsup";
import { fixImportsPlugin } from "esbuild-fix-imports-plugin";
export default defineConfig([
{
entry: ["src/**/*"],
target: "esnext",
dts: true,
external: ["fs", "path"],
clean: true,
sourcemap: true,
bundle: false, // Important: set to false
tsconfig: "./tsconfig.json",
format: ["cjs"],
outDir: "dist/cjs",
outExtension: () => ({ js: ".cjs" }),
esbuildPlugins: [fixImportsPlugin()],
},
{
entry: ["src/**/*"],
target: "esnext",
dts: true,
external: ["fs", "path"],
clean: true,
sourcemap: true,
bundle: false, // Important: set to false
tsconfig: "./tsconfig.json",
format: ["esm"],
outDir: "dist/esm",
outExtension: () => ({ js: ".mjs" }),
esbuildPlugins: [fixImportsPlugin()],
},
]);
Explanation:
bundle: false
: Settingbundle
tofalse
tellstsup
not to bundle the modules, which can lead to issues with import paths. This plugin helps resolve those issues.esbuildPlugins: [fixImportsPlugin()]
: Applies the combined plugin to fix import paths during the build process.
Contributing
Contributions are welcome! If you find a bug or have a feature request, please open an issue on GitHub.
Steps to Contribute
Fork the Repository: Click the "Fork" button at the top-right corner of the repository page.
Clone Your Fork:
git clone https://github.com/your-username/esbuild-fix-imports-plugin.git
Create a New Branch:
git checkout -b feature/my-new-feature
Install Dependencies:
npm install
Make Your Changes: Implement your feature or fix.
Build the Project:
npm run build
Test Your Changes: Ensure everything works as expected.
Commit Your Changes:
git commit -am 'Add my new feature'
Push to Your Fork:
git push origin feature/my-new-feature
Open a Pull Request: Go to your fork on GitHub and open a pull request to the main repository.
License
This project is licensed under the ISC License.
Author
Aymeric PINEAU
- GitHub: aymericzip
- Email: [email protected]
Note: Remember to adjust the plugin configurations according to your project's specific needs and ensure that all paths and options are correctly set.
Acknowledgements
Special thanks to the contributors and the open-source community for their continuous support.
Frequently Asked Questions (FAQ)
Why do I need this plugin?
When using tsup
with bundle: false
, you might encounter issues with import paths in the output files, such as missing file extensions, unresolved path aliases, or imports pointing to directories without explicit index
files. This plugin automates the process of fixing these issues during the build.
Can I use this plugin with plain ESBuild?
Yes, you can use the plugins directly with ESBuild by adding them to the plugins
array in your ESBuild configuration.
import esbuild from "esbuild";
import { fixImportsPlugin } from "esbuild-fix-imports-plugin";
esbuild.build({
entryPoints: ["src/index.ts"],
bundle: false,
plugins: [fixImportsPlugin()],
// ... other configurations
});
Do I need all three plugins?
Not necessarily. If you only need to fix specific issues, you can import and apply the individual plugins:
import {
fixAliasPlugin,
fixExtensionsPlugin,
} from "esbuild-fix-imports-plugin";
export default defineConfig({
// ... your other configurations
esbuildPlugins: [fixAliasPlugin(), fixExtensionsPlugin()],
});
What environments benefit from this plugin?
Environments that require explicit file extensions in imports or do not automatically resolve directory imports to index
files will benefit from this plugin. This includes some Node.js configurations and bundlers.
Feel free to open an issue if you have more questions or need assistance.