GitLab CI Slugify Implementation Pure Bash

slugify.sh

# Implementation of https://gitlab.com/gitlab-org/gitlab/-/blob/master/gems/gitlab-utils/lib/gitlab/utils.rb#L56

slugify() {
        local reply
        unset REPLY ERR
        reply="${*,,}"
        reply="${reply//[^a-z0-9]/-}"
        reply="${reply:0:63}"
        while [[ ${reply} == -* ]]; do reply="${reply#-}"; done
        while [[ ${reply} == *- ]]; do reply="${reply%-}"; done
        REPLY="${reply}"
}