prysless

Prysless

prysless aims to integrate ruby programs in terminal sessions with lowest harm.

It is based on pry REPL, hence the name.

Installation

Add this line to your application's Gemfile:

gem 'prysless'

And then execute:

$ bundle

Or install it yourself as:

$ gem install prysless

Configuring

All the configuring is done via environment variables, so to me it adds up to editing my bashrc

• PRYSLESS_LIBRARY_PATH: path to load additional libraries, ":"-separated
• PRYSLESS_REQUIRE: variable definitions
• PRYSLESS_ALIASES: shell command aliases

For example:

export PRYSLESS_ALIASES='l=ls:c=cd'
export PRYSLESS_LIBRARY_PATH="$HOME/dev/ec2l/lib"
export PRYSLESS_REQUIRE="e=ec2l/Ec2l/Client.new:a=pry/[]"

PRYSLESS_REQUIRE tells prysless what objects to preload and how to name them.

So, for example:

e=ec2l/Ec2l/Client.new

Will load into the variable named e Ec2l::Client.new after requiring 'ec2l'.

Because I use the development version of ec2l and not the gem directly, I added my ec2l development library directory to PRYSLESS_LIBRARY_PATH.

Also, I like to add an alias to prysless_store command:

alias p=prysless_store

Using

Just run

prysless

Once in pry shell, you'll be able to access the variables you defined:

[1] pry(<Prysless::Shell>)> e
=> <Ec2l::Client:0x000000022f5e70
...
[2] pry(<Prysless::Shell>)> cd e

[4] pry(<Ec2l::Client>):1> show-doc ins

Lets say you need to share data between your session and an external program:

[8] pry(#<Prysless::Shell>)> s.blah = 'test'
=> "test"

Now on your shell, provided 'p' is an alias to prysless_store:

$ echo I need to $(p blah) some more
I need to test some more

Contributing

• Fork it ( https://github.com/[my-github-username]/prysless/fork )
• Create your feature branch (git checkout -b my-new-feature)
• Commit your changes (git commit -am 'Add some feature')
• Push to the branch (git push origin my-new-feature)
• Create a new Pull Request