kerl : Tool for Erlang/OTP version management

2017-05-11 16:17 | Source

Like rvm for Ruby and virtualenv for Python we have now kerl for Erlang/OTP. kerl allows to install and manage multiple OTP versions. kerl is written as a shell script and does not depend on Erlang.

The Github Repo is https://github.com/yrashk/kerl

Installing kerl

$ cd /usr/local/bin
$ sudo curl -O https://raw.githubusercontent.com/yrashk/kerl/master/kerl
$ sudo chmod a+x kerl

List available releases

$ kerl list releases

Update list of available releases

$ kerl update releases

Build a release

$ kerl  build  17.0  myotp_17_0

Listing available builds

$ kerl  list builds

Installing a build

$ mkdir -p /home/me/my_otp_installations/17_0
$ kerl  install myotp_17_0 /home/me/my_otp_installations/17_0

Listing installations

$ kerl list installations

Use/activate a version of OTP

$ source /path/to/installation/dir/activate
$ # Example
$ source /home/me/my_otp_installations/17_0/activate

Deactivate/stop using for now, a version of OTP

$ kerl_deactivate

Find out which OTP version is active

$ kerl active

Get details kerl installation

$ kerl status

Delete a build

$ kerl delete build myotp_17_0