useenv 0.5.1

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useenv

A tiny tool to manage values in your env file. Useful in some rare circumstances e.g. swapping variables in local development, when you don't want to maintain multiple separate env files.

• pipx install useenv
• Create a .useenv.yml config file in your project root.
  • If this contains secret values then make sure to add .useenv.yml to your project or global .gitignore.
• useenv <env_identifier>

Example .useenv.yml config file:

env_file: .env
envs:
    foo:
        DATABASE_HOST: foo-host
        DATABASE_USER: foo-user
        DATABASE_PASSWORD: foo-pw
    bar:
        DATABASE_HOST: bar-host
        DATABASE_USER: bar-user
        DATABASE_PASSWORD: bar-pw

Modes

--mode flag or mode field of the config.

merge (default)

Values will be merged into the existing env file.

create

Env file will be created/overwritten.

In this case you may want to define a common set of values. YAML gives us the tools to do this:

_common: &common
    DATABASE_USER: common-user
  
env_file: .env
mode: create
envs:
    foo:
        << : *common
        DATABASE_HOST: foo-host    
        DATABASE_PASSWORD: foo-pw
    bar:
        << : *common
        DATABASE_HOST: bar-host    
        DATABASE_PASSWORD: bar-pw

1password

If you have the 1password CLI installed then you can pull values from 1password:

...
envs:
    foo:
        DATABASE_PASSWORD: 1pw::<item-id>::<field>  # e.g. 1pw::abcdefqwerty::password