Merge pull request #1659 from ablozhou/master

fix getting os info error on mac

packaging/tools/get_os.sh

@@ -6,9 +6,56 @@
 set -e
 # set -x
 
-# -----------------------Variables definition---------------------
-OS=$(cat /etc/*-release | grep "^NAME=" | cut -d= -f2)
-len=$(echo ${#OS})
-len=$((len-2))
-retval=$(echo -ne ${OS:1:${len}} | cut -d" " -f1)
-echo -ne $retval
+# run uname get kernel os info
+function get_kernel() {
+    read -ra uname <<< "$(uname -srm)"
+    kernel_name="${uname[0]}" #Darwin,Linux,Windows..
+    kernel_release="${uname[1]}" #version
+    kernel_machine="${uname[2]}" # x86_64
+    ARC="${uname[2]}" # x86_64
+}
+
+get_kernel
+
+function get_os() {
+    # !!Must run get_kernel first
+    case $kernel_name in
+        Linux|GNU*)
+            KERNEL=Linux
+            OS=$(cat /etc/*-release | grep "^NAME=" | cut -d= -f2)
+            len=$(echo ${#OS})
+            len=$((len-2))
+            OS=$(echo -ne ${OS:1:${len}} | cut -d" " -f1)
+        ;;
+        
+        CYGWIN*|MSYS*|MINGW*)
+            # MINGW32_NT,MINGW64_NT... , set OS the same name, check ARC for CPU
+            OS=Windows
+        ;;
+
+        Darwin)   
+            OS=Darwin   # use kernel name
+            KERNEL=Darwin
+            OS_NAME="$(sw_vers -productName)" # OS: Mac OS X
+            OS_VER="$(sw_vers -productVersion)" # Version :10.15.3
+        ;;
+
+        SunOS)    
+            OS=Solaris 
+        ;;
+
+        *BSD|DragonFly|Bitrig)
+            OS=BSD
+        ;;
+
+        *)
+            # other kernel like HP-UX, AIX,etc.
+            OS="$kernel_name"
+        ;;
+    esac
+}
+
+get_os
+
+echo -ne $OS
+