vars

#!/bin/bash

# helper functions for immediate+persistent shell vars
# be sure to source ~/.vars in your ~/.bashrc etc.
#
# usage:
#   $ var+ pdir /long/annoying/path/to/type/to/project/v1.0
#   $ cd $pdir
#   (start a new terminal tomorrow...)
#   $ cd $pdir
#   $ vars
#   export pdir=/long/annoying/path/to/type/to/project/v1.0
#   $ var- pdir

VARS_FILE=$HOME/.vars

function remove_var_from_vars_file() {
  sed -i "/^export $1=.\+$/d" $VARS_FILE
}

function var+ {
  remove_var_from_vars_file $1
  echo export $1=$2 >> $VARS_FILE
  export $1=$2
}

function var- {
  remove_var_from_vars_file $1
  unset $1
}

function vars {
  cat $VARS_FILE
}

I see other people have trouble writing valid shell functions :D

either function or (), never both!

Turns out this would work for .env too, the foreman / heroku standards