47 lines
1.2 KiB
Markdown
47 lines
1.2 KiB
Markdown
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# dependency-tree
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Returns an unordered array of local paths to dependencies of a node JavaScript file (everything it or any of its dependencies `require`s).
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Reduced feature (faster) alternative to the [`dependency-tree` package](https://www.npmjs.com/package/dependency-tree) that only works with stock node JS. This is used by Eleventy to find dependencies of a JavaScript file to watch for changes to re-run Eleventy’s build.
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## Installation
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```
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npm install --save-dev @11ty/dependency-tree
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```
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## Features
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* Ignores `node_modules`
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* Ignores Node’s built-ins (e.g. `path`)
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* Handles circular dependencies (Node does this too)
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## Usage
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```js
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// my-file.js
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// if my-local-dependency.js has dependencies, it will include those too
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const test = require("./my-local-dependency.js");
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// ignored, is a built-in
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const path = require("path");
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```
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```js
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const DependencyTree = require("@11ty/dependency-tree");
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DependencyTree("./my-file.js");
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// returns ["./my-local-dependency.js"]
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```
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### `allowNotFound`
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```js
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const DependencyTree = require("@11ty/dependency-tree");
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DependencyTree("./this-does-not-exist.js"); // throws an error
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DependencyTree("./this-does-not-exist.js", { allowNotFound: true });
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// returns []
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```
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