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42 lines
1.0 KiB
Markdown
42 lines
1.0 KiB
Markdown
# get-caller-file
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[](https://travis-ci.org/stefanpenner/get-caller-file)
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[](https://ci.appveyor.com/project/embercli/get-caller-file/branch/master)
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This is a utility, which allows a function to figure out from which file it was invoked. It does so by inspecting v8's stack trace at the time it is invoked.
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Inspired by http://stackoverflow.com/questions/13227489
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*note: this relies on Node/V8 specific APIs, as such other runtimes may not work*
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## Installation
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```bash
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yarn add get-caller-file
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```
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## Usage
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Given:
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```js
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// ./foo.js
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const getCallerFile = require('get-caller-file');
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module.exports = function() {
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return getCallerFile(); // figures out who called it
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};
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```
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```js
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// index.js
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const foo = require('./foo');
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foo() // => /full/path/to/this/file/index.js
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```
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## Options:
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* `getCallerFile(position = 2)`: where position is stack frame whos fileName we want.
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