Add a runtime checking for node version.

Author: domchen

package.json

@@ -1,6 +1,6 @@
 {
   "name": "depsync",
-  "version": "1.3.13",
+  "version": "1.3.14",
   "author": "Dom Chen",
   "homepage": "https://github.com/domchen/depsync",
   "description": "Automatically synchronize the dependencies of a project by the DEPS configuration file.",

src/Config.js

@@ -138,30 +138,6 @@ function filterByPlatform(items, hostPlatform) {
     return list;
 }
 
-function compareVersion(versionA, versionB) {
-    if (versionA === versionB) {
-        return 0;
-    }
-    let listA = versionA.split(".");
-    let listB = versionB.split(".");
-    let length = Math.max(listA.length, listB.length);
-    for (let i = 0; i < length; i++) {
-        if (listA.length <= i) {
-            return -1;
-        }
-        let a = parseInt(listA[i]);
-        if (listB.length <= i) {
-            return 1;
-        }
-        let b = parseInt(listB[i]);
-        if (a === b) {
-            continue;
-        }
-        return a > b ? 1 : -1;
-    }
-    return 0;
-}
-
 function parse(configFileName, version, platform) {
     if (!fs.existsSync(configFileName)) {
         return null;
@@ -171,15 +147,15 @@ function parse(configFileName, version, platform) {
     try {
         data = JSON.parse(jsonText);
     } catch (e) {
-        if (jsonText.trimLeft().indexOf("{") === 0) {
+        if (jsonText.trim().indexOf("{") === 0) {
             Utils.error("The DEPS config file is not a valid JSON file: " + configFileName);
         }
         return null;
     }
     let projectPath = path.dirname(configFileName);
     let config = {};
     config.version = data.version ? data.version : "0.0.0";
-    if (compareVersion(version, config.version) < 0) {
+    if (Utils.compareVersion(version, config.version) < 0) {
         Utils.error("The DEPS config requires a higher version of depsync tool: " + configFileName);
         Utils.error("Requires version: " + config.version);
         Utils.error("Current version: " + version);

src/Program.js

@@ -63,6 +63,11 @@ function makePadding(paddingLength) {
 
 
 function run(args) {
+    let version = process.versions.node;
+    if (Utils.compareVersion(version, "14.14.0") < 0) {
+        Utils.error("Node.js version must be greater than or equal to 14.14.0\n");
+        process.exit(1);
+    }
     let commandOptions = CommandLine.parse(args);
     if (commandOptions.errors.length > 0) {
         Utils.error(commandOptions.errors.join("\n") + "\n");

src/Utils.js

@@ -223,6 +223,30 @@ function execSafe(cmd, dir) {
     }
 }
 
+function compareVersion(versionA, versionB) {
+    if (versionA === versionB) {
+        return 0;
+    }
+    let listA = versionA.split(".");
+    let listB = versionB.split(".");
+    let length = Math.max(listA.length, listB.length);
+    for (let i = 0; i < length; i++) {
+        if (listA.length <= i) {
+            return -1;
+        }
+        let a = parseInt(listA[i]);
+        if (listB.length <= i) {
+            return 1;
+        }
+        let b = parseInt(listB[i]);
+        if (a === b) {
+            continue;
+        }
+        return a > b ? 1 : -1;
+    }
+    return 0;
+}
+
 function addLineBreaker() {
     hasLineBreaker = true;
 }
@@ -237,4 +261,5 @@ exports.exec = exec;
 exports.execSafe = execSafe;
 exports.log = log;
 exports.error = error;
+exports.compareVersion = compareVersion;
 exports.addLineBreaker = addLineBreaker;