Maintain CLI environments to work on different projets or clients
Clone or download
Fetching latest commit…
Cannot retrieve the latest commit at this time.
Permalink
Type Name Latest commit message Commit time
Failed to load latest commit information.
img
E
E.completion
README.md
dot.env.sh.example
rc.post.example
rc.pre.example

README.md

E

Maintain CLI environments to work on different projets or clients.

Problem

You have to manage several environments (where environment is a set of environment variables). For example for clients or for different projects. Each project has it's own AWS keys, Chef/Puppet/Your-own-super-cool-tool-here settings, etc. You end up with a bunch of shell scripts that set up such environments. You wish they would be organized better but you never have the time to do that.

Suggested solution

E provides lightweight framework in bash allowing some order and organization of such scripts. E also makes it easy to move the common parts of such scripts to one place, allowing better maintenance.

Setup

  • Place the E binary somewhere in the path.
  • Create the ~/.E directory.

Adding new environment

  • Create a directory, named after the project name.
  • cd to that directory
  • Create .env.sh file (empty or with bunch of export X=Y lines or more advanced stuff)
  • Run E add

Activating an environment

Alternatives

  • E <env-name> - activates the given environment
  • E - launches whiptail-based menu: 5 most recently used environments at the top === separator and then all the environments in alpabetical order.

Setup and work toaster

# E binary setup - start
cd
grep -qF ":$HOME/.bin" ~/.bashrc || echo "export PATH=$PATH:$HOME/.bin" >>~/.bashrc
mkdir .bin
wget -O .bin/E https://raw.github.com/ilyash/E/master/E
. ~/.bashrc
chmod +x .bin/E
mkdir .E
# E binary setup - done

# Setting up "my-super-proj" project - start
mkdir my-super-proj
cd my-super-proj
echo "export TEST=1" >.env.sh
E add
# ignore the error "grep: ..../.E/list: No such file or directory"
# Setting up "my-super-proj" project - done

# Work with an environment - start
E
# pick the project in the menu
# output: *** Setting up environment 'my-super-proj' ***
# when finished: CTRL+D
# output: *** Exited environment 'my-super-proj' ***
# Work with an environment - done

Suggested bashrc additions

if [ -f ~/.bin/E.completion ]; then
  . ~/.bin/E.completion
fi

alias cdd='cd $E_HOME'

Screenshots

![screenshot of "E" running without arguments](img/screenshot-select.png "screenshot of "E" running without arguments")

Advanced configuration

(soon)