1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
|
# WithEnv
WithEnv is an extremely small helper module for executing code with ENV variables. It exists because
I got tired of re-writing or copying over a #with_env helper method for the 131st time.
## Installation
Add this line to your application's Gemfile:
```ruby
gem 'with_env'
```
And then execute:
$ bundle
Or install it yourself as:
$ gem install with_env
## Usage
```
include WithEnv
with_env("FOO" => "BAR") do
`echo $FOO` # => "BAR\n"
ENV["FOO"] # => "BAR"
end
# The ENV has been restored to what it was before the
# above with_env block, so FOO no longer exists
`echo $FOO` # => "\n"
ENV.has_key?("FOO") # => false
```
## Development
After checking out the repo, run `bin/setup` to install dependencies. Then, run `rake rspec` to run the tests. You can also run `bin/console` for an interactive prompt that will allow you to experiment.
To install this gem onto your local machine, run `bundle exec rake install`. To release a new version, update the version number in `version.rb`, and then run `bundle exec rake release`, which will create a git tag for the version, push git commits and tags, and push the `.gem` file to [rubygems.org](https://rubygems.org).
## Contributing
Bug reports and pull requests are welcome on GitHub at https://github.com/mhs/with_env-rb.
## License
The gem is available as open source under the terms of the [MIT License](http://opensource.org/licenses/MIT).
|
