This commit is contained in:
Dominic Grimm 2022-01-22 21:31:30 +01:00
commit 6994167306
6 changed files with 135 additions and 0 deletions

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root = true
[*.cr]
charset = utf-8
end_of_line = lf
insert_final_newline = true
indent_style = space
indent_size = 2
trim_trailing_whitespace = true

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.gitignore vendored Normal file
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/docs/
/lib/
/bin/
/.shards/
*.dwarf
# Libraries don't need dependency lock
# Dependencies will be locked in applications that use them
/shard.lock

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MIT License
Copyright (c) 2022 Dominic Grimm <dominic.grimm@gmail.com>
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.

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# senf
A safe environment variable requester.
Should not be used in any kind of production environment.
## Installation
1. Add the dependency to your `shard.yml`:
```yaml
dependencies:
senf:
git: https://git.dergrimm.net/dergrimm/senf.git
```
2. Run `shards install`
## Usage
```crystal
require "senf"
SAFE_ENV = Senf::SafeEnv.new([
"TEST_1",
"TEST_2"
])
SAFE_ENV << "TEST_3"
p! SAFE_ENV["TEST_1"],
SAFE_ENV["TEST_2"],
SAFE_ENV["TEST_3"]
```
## Development
TODO: Write development instructions here
## Contributing
1. Fork it
2. Create your feature branch (`git checkout -b my-new-feature`)
3. Commit your changes (`git commit -am 'Add some feature'`)
4. Push to the branch (`git push origin my-new-feature`)
5. Create a new Pull Request
## Contributors
- [Dominic Grimm](https://git.dergrimm.net/dergrimm) - creator and maintainer

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name: senf
version: 0.1.0
authors:
- Dominic Grimm <dominic.grimm@gmail.com>
crystal: 1.3.0
license: MIT

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module Senf
VERSION = {{ `shards version`.stringify.chomp.downcase }}
class SafeEnv
private property keys
def initialize(@keys = {} of String => String?)
end
def initialize(keys : Array(String))
@keys = {} of String => String?
keys.each { |k| self.<< k }
end
def <<(key : String) : self
@keys[key] = ENV[key]?
self
end
def []?(key : String) : String?
if @keys.has_key?(key)
@keys[key]?
end
end
def [](key : String) : String
if @keys.has_key?(key)
val = @keys[key]?
raise "ENV[#{key}] is nil" unless val
val
else
raise "No such key: #{key}"
end
end
end
end