Quick and dirty alternative to https://github.com/x-motemen/ghq. It only has the features I care about and is much less robust, but it automatically changes the current directory

ghq.fish

function ghq
    # Simplified https://github.com/x-motemen/ghq, so that it’s always available
    # Reference for git URLs: https://git-scm.com/docs/git-fetch#_git_urls
    # * ssh://[user@]host.xz[:port]/path/to/repo.git/
    # * git://host.xz[:port]/path/to/repo.git/
    # * http[s]://host.xz[:port]/path/to/repo.git/
    # * ftp[s]://host.xz[:port]/path/to/repo.git/
    # * [user@]host.xz:path/to/repo.git/
    set -f url $argv[1]
    set -f path
    set -f host
    string match -rq '^([a-z]+://([^@]+@)?(?<host>[^:/]+)(:\d+)?/)(?<path>.+?)(\.git/?)?$' $url || string match -rq '^(([\w-]+@)?(?<host>[^/:@]+):)(?<path>.+?)(\.git/?)?$' $url
    set -f hqpath "$HOME/ghq/$host/$path"
    if test ! -d $hqpath
        echo "Cloning to $hqpath"
        git clone $url $hqpath
    end
    cd $hqpath
end