add check of /etc/os-release for linux distros

functions/utilities.zsh

@@ -102,24 +102,65 @@ case $(uname) in
       OS_ICON=$(print_icon 'FREEBSD_ICON')
       ;;
     Linux)
-      OS='Linux'
-      OS_ICON=$(print_icon 'LINUX_ICON')
-
-      # Check if the OS is debian
-      if [ `lsb_release -si`="Debian" ]; then
+      os_release_id="$(grep -E '^ID=([a-zA-Z]*)' /etc/os-release | cut -d '=' -f 2)"
+      case "$os_release_id" in
+        "arch")
+        OS='Arch'
+        OS_ICON=$(print_icon 'LINUX_ARCH_ICON')
+        ;;
+        "debian")
         OS='Debian'
         OS_ICON=$(print_icon 'LINUX_DEBIAN_ICON')
-      fi
-      # Check if the OS is ubuntu
-      if [ `lsb_release -si`="Ubuntu" ]; then
+        ;;
+       "ubuntu")
         OS='Ubuntu'
-        OS_ICON=$(print_icon 'LINUX_Ubuntu_ICON')
-      fi
-      # Check if the OS is mint
-      if [ `lsb_release -si`="Mint" ]; then
+        OS_ICON=$(print_icon 'LINUX_UBUNTU_ICON')
+        ;;
+       "elementary")
+        OS='Elementary'
+        OS_ICON=$(print_icon 'LINUX_ELEMENTARY_ICON')
+        ;;
+       "fedora")
+        OS='Fedora'
+        OS_ICON=$(print_icon 'LINUX_FEDORA_ICON')
+        ;;
+       "coreos")
+        OS='CoreOS'
+        OS_ICON=$(print_icon 'LINUX_COREOS_ICON')
+        ;;
+       "gentoo")
+        OS='Gentoo'
+        OS_ICON=$(print_icon 'LINUX_GENTOO_ICON')
+        ;;
+       "mageia")
+        OS='Mageia'
+        OS_ICON=$(print_icon 'LINUX_MAGEIA_ICON')
+        ;;
+       "centos")
+        OS='CentOS'
+        OS_ICON=$(print_icon 'LINUX_CENTOS_ICON')
+        ;;
+       "opensuse"|"tumbleweed")
+        OS='OpenSUSE'
+        OS_ICON=$(print_icon 'LINUX_OPENSUSE_ICON')
+        ;;
+       "sabayon")
+        OS='Sabayon'
+        OS_ICON=$(print_icon 'LINUX_SABAYON_ICON')
+        ;;
+       "slackware")
+        OS='Slackware'
+        OS_ICON=$(print_icon 'LINUX_SLACKWARE_ICON')
+        ;;
+       "linuxmint")
         OS='Mint'
         OS_ICON=$(print_icon 'LINUX_MINT_ICON')
-      fi
+        ;;
+        *)
+        OS='Linux'
+        OS_ICON=$(print_icon 'LINUX_ICON')
+        ;;
+      esac
 
       # Check if we're running on Android
       case $(uname -o 2>/dev/null) in