tide/functions/_tide_detect_os.fish

function _tide_detect_os
    switch (uname | string lower)
        case darwin
            set -g _tide_os_icon 
        case freebsd openbsd dragonfly
            set -g _tide_os_icon 
        case linux
            # Use ID first, then ID_LIKE if that fails, then default to generic linux logo
            if _tide_detect_os_linux_cases (_tide_detect_os_extract_os_release_info 2)
            else if _tide_detect_os_linux_cases (_tide_detect_os_extract_os_release_info 3)
            else
                set -g _tide_os_icon 
            end
        case '*'
            set -g _tide_os_icon '?'
    end
end

function _tide_detect_os_linux_cases -a name
    switch $name
        case alpine
            set -g _tide_os_icon 
        case arch
            set -g _tide_os_icon 
        case centos
            set -g _tide_os_icon 
        case debian
            set -g _tide_os_icon 
        case elementary
            set -g _tide_os_icon 
        case fedora
            set -g _tide_os_icon 
        case gentoo
            set -g _tide_os_icon 
        case linuxmint
            set -g _tide_os_icon 
        case manjaro
            set -g _tide_os_icon 
        case nixos
            set -g _tide_os_icon 
        case opensuse tumbleweed
            set -g _tide_os_icon 
        case raspbian
            set -g _tide_os_icon 
        case ubuntu
            set -g _tide_os_icon 
        case '*'
            return 1
    end
end

function _tide_detect_os_extract_os_release_info -a lineNumber
    set -l osRelease (cat /etc/os-release)
    set -l selectedLine $osRelease[$lineNumber]
    set -l splitData (string split '=' $selectedLine | string trim -c '"' | string lower)
    echo $splitData[2]
end