| # 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. |
