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| # get-caller-file | |
| [](https://travis-ci.org/stefanpenner/get-caller-file) | |
| [](https://ci.appveyor.com/project/embercli/get-caller-file/branch/master) | |
| 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. | |
| Inspired by http://stackoverflow.com/questions/13227489 | |
| *note: this relies on Node/V8 specific APIs, as such other runtimes may not work* | |
| ## Installation | |
| ```bash | |
| yarn add get-caller-file | |
| ``` | |
| ## Usage | |
| Given: | |
| ```js | |
| // ./foo.js | |
| const getCallerFile = require('get-caller-file'); | |
| module.exports = function() { | |
| return getCallerFile(); // figures out who called it | |
| }; | |
| ``` | |
| ```js | |
| // index.js | |
| const foo = require('./foo'); | |
| foo() // => /full/path/to/this/file/index.js | |
| ``` | |
| ## Options: | |
| * `getCallerFile(position = 2)`: where position is stack frame whos fileName we want. | |