Poncho

A .env parser/loader improved for performance. Poncho Icon by lastspark from Noun Project.

• Installation
• Usage
  • Parse
    • Rules
    • Overrides
    • Examples
  • Load
    • Orders
    • Overrides
    • Examples
• Donate
• How to Contribute
• You may also like
• License

Installation

Add this to your application's shard.yml:

dependencies:
  poncho:
    github: icyleaf/poncho

Usage

Add your application configuration to your .env file in the root of your project:

MYSQL_HOST=localhost
MYSQL_PORT=3306
MYSQL_DATABASE=poncho
DMYSQL_USER=poncho
MYSQL_PASSWORD=74e10b72-33b1-434b-a476-cfee0faa7d75

Now you can parse or load it.

Parse

Poncho parses the contents of your file containing environment variables is available to use. It accepts a String or IO and will return an Hash with the parsed keys and values.

Rules

Poncho parser currently supports the following rules:

• Skipped the empty line and comment(#).
• Ignore the comment which after (#).
• NAME=foo becomes {"NAME" => "foo"}.
• Empty values become empty strings.
• Whirespace is removed from right ends of the value.
• Single and Double quoted values are escaped.
• New lines are expanded if in double quotes.
• Inner quotes are maintained (such like json).
• Overwrite optional (default is non-overwrite).
• Only accpets string type value.

Overrides

By default, Poncho won't overwrite existing environment variables as dotenv assumes the deployment environment has more knowledge about configuration than the application does. To overwrite existing environment variables you can use Poncho.parse!(string_or_io) / Poncho.from_file(file, overwrite: true) and Poncho.parse(string_or_io, overwrite: true).

Examples

require "poncho"
# Or only import parser
require "poncho/parser"

poncho = Poncho.from_file ".env"
# or
poncho = Poncho.parse("ENV=development\nENV=production")
poncho["ENV"] # => "development"

# Overwrite value with exists key
poncho = Poncho.parse!("ENV=development\nENV=production")
poncho["ENV"] # => "production"

Load

Poncho loads the environment file is easy to use. It accepts both single file (or path) and multiple files.

Orders

Poncho loads single file supports the following order with environment name (default is development):

• .env - The Original®
• .env.development - Environment-specific settings.
• .env.local - Local overrides. This file is loaded for all environments except test.
• .env.development.local - Local overrides of environment-specific settings.

NO effect with multiple files.

Overrides

By default, Poncho won't overwrite existing environment variables as dotenv assumes the deployment environment has more knowledge about configuration than the application does. To overwrite existing environment variables you can use Poncho.load!(*files) or Poncho.load(*files, overwrite: true).

Examples

# Load singe file
# Searching order: .env.development, .env.local, .env.development.local
Poncho.load ".env"

# Load from path
Poncho.load "config/"

# Load production file
# Searching order: .env, .env.production, .env.local, .env.production.local
Poncho.load ".env", env: "production"

# Load multiple files, ignore enviroment name.
Poncho.load ".env", ".env.local", env: "test"
# Searching order: .env, .env.local

Donate

Poncho is a open source, collaboratively funded project. If you run a business and are using Poncho in a revenue-generating product, it would make business sense to sponsor Poncho development. Individual users are also welcome to make a one time donation if Totem has helped you in your work or personal projects.

You can donate via Paypal.

How to Contribute

Your contributions are always welcome! Please submit a pull request or create an issue to add a new question, bug or feature to the list.

All Contributors are on the wall.

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License

MIT License © icyleaf