switch-zplug-versions

#!/usr/bin/env zsh

# Depending on the version of zplug that you are currently using, this
# function symlinks the other zplug version to $ZPLUG_HOME.
#
# $ git clone https://github.com/b4b4r07/zplug ~/.zplug_v1
# $ git clone https://github.com/b4b4r07/zplug2 ~/.zplug_v2
# $ source ~/.zplug_v1/zplug
# $ source this_script
# # Use v2
# $ switch-zplug-versions

switch-zplug-versions() {
    if ! type zplug >/dev/null; then
        echo 'zplug not found' 1>&2
        return 1
    fi

    local now use
    now=$( zplug version | grep -o '\b[0-9.]\+\b' | cut -d'.' -f1 )
    if (( now == 2 )); then
        use=v1
    else
        use=v2
    fi

    ln -sfnv ~/.zplug_$use $ZPLUG_HOME
}