Polyglot

Polyglot is a simple framework for programmers who want to be able to switch between different langauages easily without having a really complicated .profile or .bashrc. It allows you to create simple little setup scripts for each lanaguage you use and then pull them into your current shell on-demand using a simple utility.

For example, I don't use clojurescript very often so I don't want it to be installed in my shell sessions by defualt. However, I can load it up on demand using a single command.

poly load clojurescript

Installation

clone this repo into ~/.poly

git clone https://github.com/mowat27/polyglot.git ~/.poly

Add the following to .bashrc (or similar)

alias poly="source $HOME/.poly/polyglot.bash"
poly load example

This will load the provided example config at runtime.

Usage

To get help, type

poly help

Environment Setup

Instead of setting your dotfiles to configure environment variables like your PATH and language settings, you can separate your settings into individual files.

Simply create a script in your .poly/recipes directory named .sh. For example, I create ~/.poly/recipes/ioke.sh I can load Ioke by running

poly load ioke

Remember that ioke.sh will be 'dotted' into your environment so you shouldn't do anything that will kill the whole session like

exit 0

The github repo contains a an example.

# Set language specific environment in a .sh file like this one
export SOME_CONFIG_VAR="hello world"

Command Prompt Setup

You can control your command prompt (i.e. PS1 variable) using the prompt command to load one or more files from the prompts directory.

For example, if I have 2 files in prompts.

$ cat prompts/pwd
$(basename $PWD)
$ cat prompts/dollar
$

When I load them using the prompt command they are 'pushed' onto the PS1 in the order specified.

$ poly prompt pwd dollar
.poly$ # This is my new prompt

Storing your prompts in a different place

I have found it easier to coordinate changes to my recipes and prompts between machines using Dropbox rather than via GitHub because I kept forgetting to push my changes.

You can store recipes and/or prompts in a different location by exporting the following variables

export POLYGLOT_PROMPTS=$HOME/prompts
export POLYGLOT_RECIPES=$HOME/recipes

Per-project setup

Sometimes, it's handy to have a per project setup. You can do this by creating a file called Polyfile in any direrctory. If you run poly with no arguments, it looks for the Polyfile and 'dots' it into your shell.

For example

$ cat Polyfile
echo hello world
poly load hadoop

$ poly
hello world
poly : Loading hadoop

FAQ

What if I want to uninstall a langauge from a session?

You need to start a new session that doesn't include the language you don't want.

Do you want pull requests?

Yes please - but please don't send me your own language configs