first commitmaster

1 files changed, 18 insertions, 0 deletions

diff --git a/checknodeversion.sh b/checknodeversion.sh
new file mode 100755
index 0000000..9f13e80
--- /dev/null
+++ b/checknodeversion.sh
@@ -0,0 +1,18 @@
+#!/bin/bash
+
+function check_node_version() {
+  MIN_VERSION="7.6.0"
+  if [[ "$MIN_VERSION" == "$1" ]]; then return 0;fi
+  local IFS=.
+  VERSION="${1:1}"
+  local i ver1=($MIN_VERSION) ver2=($VERSION) 
+  for ((i=0; i < ${#ver1[@]}; i++)); do
+    if [[ 10#${ver1[i]} > 10#${ver2[i]} ]]; then return 1;fi
+    if [[ 10#${ver1[i]} < 10#${ver2[i]} ]]; then return 0;fi
+  done
+}
+
+NODE_VERSION=$(node --version)
+check_node_version $NODE_VERSION
+if [[ $? == 1 ]]; then echo "node version is too old. please use v.7.6.0 or newer." && exit 1; fi
+echo "node version is new enough!"