Environment manager
Environment manager for build tasks.
env-manager
matches a file with environment variables based on passed arguments.
Install
$ npm install --save-dev env-manager
Usage
Basic
For example, we have these files with environment variables. (.js
files also can be used)
root environment.dev.json environment.test.json environment.prod.json
var env = argv: processargv ;
Running this command.
npm run build -- --env dev
Will return a content from environment.dev.json
.
Merge
In order to avoid boilerplate code we can define base environment.json
with default values
and override them with values from matched file:
root environment.json environment.dev.json environment.test.json environment.prod.json
var env = argv: processargv base: 'environment.json' ;
npm run build -- --env dev
Will return a content from environment.json
merged with environment.dev.json
.
Config override
Alternatevley, you can override config values by passing new values via CLI arguments.
npm run build -- --version 1.1.0-alpha.1 --server.port 9091
Custom pattern and directory
It's possible to define a custom match pattern and custom target directory. Both of these options are independent.
root environments linux dev.json prod.json windows dev.json prod.json
var path = ; var env = argv: processargv pattern: '{platform}/{env}.json' dir: path ;
npm run build -- --env dev --platform linux
Will return a content from environments/linux/dev.json
.
API
manager(options)
options.argv
Type: Array<string>
.
Process arguments.
Required.
options.dir
Type: string
.
Files lookup folder.
Optional.
Default __dirname
.
options.base
Type: string
.
Base file with environment variables.
If defined, base file will be extended with matched file.
Optional.
options.pattern
Type: string
.
File matching pattern based on arguments.
Optional.
Default environment.{env}.json
.
options.defaults
Type: object
.
Default arguments.
Optional.
License
The MIT License (MIT)
Copyright (C) 2015 Tim Voronov
Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.