https://github.com/lestrrat-go/envload

Restore and load environment variables
https://github.com/lestrrat-go/envload

Last synced: about 2 months ago
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Restore and load environment variables

• Host: GitHub
• URL: https://github.com/lestrrat-go/envload
• Owner: lestrrat-go
• License: mit
• Created: 2016-12-27T09:32:03.000Z (over 8 years ago)
• Default Branch: master
• Last Pushed: 2018-02-20T23:40:24.000Z (over 7 years ago)
• Last Synced: 2024-06-19T05:57:18.240Z (about 1 year ago)
• Language: Go
• Size: 5.86 KB
• Stars: 3
• Watchers: 2
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

        
# envload

Restore environment variables, so you can break 'em

[![Build Status](https://travis-ci.org/lestrrat-go/envload.png?branch=master)](https://travis-ci.org/lestrrat-go/envload)

[![GoDoc](https://godoc.org/github.com/lestrrat-go/envload?status.svg)](https://godoc.org/github.com/lestrrat-go/envload)

# SYNOPSIS

# DESCRIPTION

Certain applications that require reloading of configuraiton from

environment variables are sensitive to these values being changed.

Or maybe you are writing a test that wants to temporarily change the

value of an environment variable, but you don't want it to linger afterwards.

In other languages this can be done with a "temporary" variable, like in

Perl5:

```perl

use strict;

use 5.24;

sub foo {

  $ENV{IMPORTANT_VAR} = "foo";

  say $ENV{IMPORTANT_VAR}; # "foo"

  {

    local %ENV = %ENV; # inherit the original %ENV,

    $ENV{IMPORTANT_VAR} = "bar";

    say $ENV{IMPORTANT_VAR}; # "bar"

  }

  # 

  say $ENV{IMPORTANT_VAR}; # "bar"

}

```

This library basically allows you to do this in Go