REnv

REnv is a tool for running commands with a set of environment variables. It can be used to quickly switch the value of environment variables which is particularly useful for some devops tools.

Environment variable values are stored in .env files at a well known location:

1. Windows: %APPDATA%\renv\envs\
2. Linux/Unix: $HOME/.config/renv/envs/

Installation

1. install rust from https://www.rust-lang.org/
2. ensure you have installed your platform's matching compiler toolchain (gcc, mingw or msvc)
3. run cargo install renv

Platforms

REnv supports windows, linux and unix.

Commands

REnv supports the following commands:

edit

Start $EDITOR to modify the contents of the named .env file

exec

Run a command with the environment variables loaded from the named .env file Add a "--" before any arguments that might contain hyphens and confuse renv's argument parsing.

install

Copy a given .env file to the location calculated from the given environment name

list

List installed environment .env files by environment name

new

Create a blank installed environment .env file and stsart $EDITOR to edit the contents

remove

Delete the installed environment .env file

show

Print the contents of the named environment .env file to the console

Examples

``` cat > prod.env <ACCESSKEYID=foo AWSSECRETACCESSKEY=bar EOF

renv install prod prod.env

renv exec prod -- aws s3 ls ```