OS name and version

[nojhan]

Display the OS name and version.

Description

Display somewhere the operating system name, optionally along with its version.
Probably use lsb_release.

Not sure this can be done in a portable way, especially for Linux.

[Rycieos]

Not sure this can be done in a portable way, especially for Linux.

That is going to be the trick. For the external-tool-tester.sh, I just dump as much info as possible, and let the human reader figure it out:

https://github.com/nojhan/liquidprompt/blob/6f0dc9f7dda99fe98c6dce26be5e461692782c6d/tools/external-tool-tester.sh#L24-L34

Portability is not likely without a bunch of testing and work put in. Might be easiest to just do uname -o or uname -s or even uname and return that as the OS. Open to ideas.

[nojhan]

Here is how Powerlevel10k is doing it in at most 3 subshell calls (MIT licensed):

  _p9k_uname="$(uname)"
  [[ $_p9k_uname == Linux ]] && _p9k_uname_o="$(uname -o 2>/dev/null)"
  _p9k_uname_m="$(uname -m)"

  if [[ $_p9k_uname == Linux && $_p9k_uname_o == Android ]]; then
    _p9k_set_os Android ANDROID_ICON
  else
    case $_p9k_uname in
      SunOS)                     _p9k_set_os Solaris SUNOS_ICON;;
      Darwin)                    _p9k_set_os OSX     APPLE_ICON;;
      CYGWIN*|MSYS*|MINGW*)      _p9k_set_os Windows WINDOWS_ICON;;
      FreeBSD|OpenBSD|DragonFly) _p9k_set_os BSD     FREEBSD_ICON;;
      Linux)
        _p9k_os='Linux'
        local os_release_id
        if [[ -r /etc/os-release ]]; then
          local lines=(${(f)"$(</etc/os-release)"})
          lines=(${(@M)lines:#ID=*})
          (( $#lines == 1 )) && os_release_id=${lines[1]#ID=}
        elif [[ -e /etc/artix-release ]]; then
          os_release_id=artix
        fi
        case $os_release_id in
          *arch*)                  _p9k_set_os Linux LINUX_ARCH_ICON;;
          *debian*)                _p9k_set_os Linux LINUX_DEBIAN_ICON;;
          *raspbian*)              _p9k_set_os Linux LINUX_RASPBIAN_ICON;;
          *ubuntu*)                _p9k_set_os Linux LINUX_UBUNTU_ICON;;
          *elementary*)            _p9k_set_os Linux LINUX_ELEMENTARY_ICON;;
          *fedora*)                _p9k_set_os Linux LINUX_FEDORA_ICON;;
          *coreos*)                _p9k_set_os Linux LINUX_COREOS_ICON;;
          *gentoo*)                _p9k_set_os Linux LINUX_GENTOO_ICON;;
          *mageia*)                _p9k_set_os Linux LINUX_MAGEIA_ICON;;
          *centos*)                _p9k_set_os Linux LINUX_CENTOS_ICON;;
          *opensuse*|*tumbleweed*) _p9k_set_os Linux LINUX_OPENSUSE_ICON;;
          *sabayon*)               _p9k_set_os Linux LINUX_SABAYON_ICON;;
          *slackware*)             _p9k_set_os Linux LINUX_SLACKWARE_ICON;;
          *linuxmint*)             _p9k_set_os Linux LINUX_MINT_ICON;;
          *alpine*)                _p9k_set_os Linux LINUX_ALPINE_ICON;;
          *aosc*)                  _p9k_set_os Linux LINUX_AOSC_ICON;;
          *nixos*)                 _p9k_set_os Linux LINUX_NIXOS_ICON;;
          *devuan*)                _p9k_set_os Linux LINUX_DEVUAN_ICON;;
          *manjaro*)               _p9k_set_os Linux LINUX_MANJARO_ICON;;
          *void*)                  _p9k_set_os Linux LINUX_VOID_ICON;;
          *artix*)                 _p9k_set_os Linux LINUX_ARTIX_ICON;;
          *rhel*)                  _p9k_set_os Linux LINUX_RHEL_ICON;;
          amzn)                    _p9k_set_os Linux LINUX_AMZN_ICON;;
          *)                       _p9k_set_os Linux LINUX_ICON;;
        esac
        ;;
    esac
  fi