2.0.0 • Published 7 years ago
babel-plugin-define-function v2.0.0
babel-plugin-define-function
A plugin for Babel 6 allows you to define dynamic variables at build time with functions.
Installation
$ npm install babel-plugin-define-function --save-dev
.babelrc
{
"plugins": [
["define-function", "./path/to/config/file.js"]
]
}
Example
Given the following definitions:
var exec = require('child_process').execSync
var details = require('./package.json')
var buildNumber = 0
module.exports = {
// Define a static version variable.
__VERSION__: details.version,
// Evaluate git commit at build time.
__GIT_COMMIT__: function () {
// This function will be called on each build.
return exec('git rev-parse HEAD') + '-' + buildNumber++
}
}
And the following file:
console.log('package version is ' + __VERSION__)
console.log('git build is ' + __GIT_COMMIT__)
becomes:
console.log('package version is ' + '1.0.0')
console.log('git build is ' + '0c25b7ea0ed7554b7da285907154b66a694c3060-0')
and on the second build (if watching):
console.log('package version is ' + '1.0.0')
console.log('git build is ' + '0c25b7ea0ed7554b7da285907154b66a694c3060-1')
Contributions
- Use
npm test
to run tests.