environment-override

Environment Override

Takes a object and checks the environment variables for overrides to its values. Great for manifests and other configuration.

How to use

The code is currently synchronous as its expected to only be run once as part of the startup of the app.

In code :

var override = require('environment-override');
var json = require('./some.json');
override(json, 'PREFIX_');

Or you can run it from the command line to see the variables you need to set :

node ./node_modules/environment-override/bin/show test.json

Use the following to see other options :

node ./node_modules/environment-override/bin/show --help

To override, simply set the environment variables you want to override, you can remove by setting the entry to be equal OVERRIDE_REMOVE_DATA.

To override whole structures use stringified JSON objects in variables. ie:

exports PREFIX_VARIABLE='{"key1": "value1", "key2": "value2"}'

Code coverage

    >
    > npm test
    >
    > environment-override@0.1.3 test /.../environment-override
    > istanbul cover _mocha --dir ../coverage/environment -- --no-timeouts -R dot test/tests/



      ․․․․․․․․․․

      10 passing (14ms)

    =============================================================================
    Writing coverage object [./coverage/coverage.json]
    Writing coverage reports at [./coverage]
    =============================================================================

    =============================== Coverage summary ===============================
    Statements   : 100% ( 21/21 )
    Branches     : 100% ( 12/12 )
    Functions    : 100% ( 1/1 )
    Lines        : 100% ( 21/21 )
    ================================================================================