Arch Linux support

public/detect_linux.sh

@@ -3,31 +3,40 @@
 DISTNAME=unknown
 DISTVER=
 
-if [ -f /etc/solus-release ]; then
-  DISTNAME=solus
-elif [ -f /etc/lsb-release ]; then
-  . /etc/lsb-release
-  DISTNAME=$(echo ${DISTRIB_ID} | awk '{print tolower($0)}')
-  DISTVER=${DISTRIB_RELEASE}
-  if [ "$DISTNAME" != "ubuntu" ]; then
-    if [ "$DISTNAME" = "linuxmint" ]; then
-      if [ "$DISTVER" = "19" ] || [ "$DISTVER" = "19.1" ]; then
-        DISTNAME=ubuntu
-        DISTVER=18.04
-      fi
-    elif [ "$DISTNAME" = "elementary" ]; then
-      if [ "$DISTVER" = "5.0" ]; then
-        DISTNAME=ubuntu
-        DISTVER=18.04
-      fi
-    else
-      DISTNAME=unknown
-      DISTVER=
-    fi
+if [ -f /etc/os-release ]; then
+  . /etc/os-release
+  if [ "$ID" == "arch" ]; then
+    DISTNAME=arch
+  fi
+fi
+
+if [ "DISTNAME" = "unknown" ]; then
+  if [ -f /etc/solus-release ]; then
+    DISTNAME=solus
+  elif [ -f /etc/lsb-release ]; then
+    . /etc/lsb-release
+    DISTNAME=$(echo ${DISTRIB_ID} | awk '{print tolower($0)}')
+    DISTVER=${DISTRIB_RELEASE}
+    if [ "$DISTNAME" != "ubuntu" ]; then
+      if [ "$DISTNAME" = "linuxmint" ]; then
+        if [ "$DISTVER" = "19" ] || [ "$DISTVER" = "19.1" ]; then
+          DISTNAME=ubuntu
+          DISTVER=18.04
+        fi
+      elif [ "$DISTNAME" = "elementary" ]; then
+        if [ "$DISTVER" = "5.0" ]; then
+          DISTNAME=ubuntu
+          DISTVER=18.04
+        fi
+      else
+        DISTNAME=unknown
+        DISTVER=
+      fi
+    fi
+  elif [ -f /etc/debian_version ]; then
+    DISTNAME=debian
+    DISTVER=$(head -1 /etc/debian_version|awk -F. '{print $1}')
   fi
-elif [ -f /etc/debian_version ]; then
-  DISTNAME=debian
-  DISTVER=$(head -1 /etc/debian_version|awk -F. '{print $1}')
 fi
 
 echo ${DISTNAME}${DISTVER}