refactor: read settings.json file in android runtime to determine V8 version (#509)

Author: vtrifonov

projectHelpers.js

@@ -11,6 +11,7 @@ const {
 } = require("./nsCliHelpers");
 
 const APP_DIR = "app";
+const ANDROID_PROJECT_PATH = "platforms/android";
 
 const isTypeScript = ({ projectDir, packageJson } = {}) => {
     packageJson = packageJson || getPackageJson(projectDir);
@@ -54,6 +55,19 @@ const getAndroidRuntimeVersion = (projectDir) => {
     }
 }
 
+const getAndroidV8Version = (projectDir) => {
+    try {
+        const androidSettingsJSON = getAndroidSettingsJson(projectDir);
+        if(androidSettingsJSON != null) {
+            return androidSettingsJSON.v8Version;
+        } else {
+            return null;
+        }
+    } catch (e) {
+        return null;
+    }
+}
+
 const getWebpackConfig = (projectDir, env, configPath = "webpack.config.js") => {
     const configAbsolutePath = path.resolve(projectDir, configPath);
     let config;
@@ -82,6 +96,15 @@ const getPackageJson = projectDir => {
     return JSON.parse(fs.readFileSync(packageJsonPath, "utf8"));
 };
 
+const getAndroidSettingsJson = projectDir => {
+    const androidSettingsJsonPath = path.resolve(projectDir, ANDROID_PROJECT_PATH, "settings.json");
+    if (fs.existsSync(androidSettingsJsonPath)) {
+        return JSON.parse(fs.readFileSync(androidSettingsJsonPath, "utf8"));
+    } else {
+        return null;
+    }
+};
+
 const writePackageJson = (content, projectDir) => {
     const packageJsonPath = getPackageJsonPath(projectDir);
     fs.writeFileSync(packageJsonPath, JSON.stringify(content, null, 2))
@@ -92,14 +115,13 @@ const toReleaseVersion = version =>
     version.replace(/-.*/, "");
 
 const getAndroidProjectPath = ({androidPackageVersion, projectRoot}) => {
-    const ANDROID_PROJECT_PATH = "platforms/android";
     if (projectRoot) {
         androidPackageVersion = getAndroidRuntimeVersion(projectRoot);
     }
 
     return semver.lt(androidPackageVersion, "3.4.0") ?
         ANDROID_PROJECT_PATH :
-        path.join(ANDROID_PROJECT_PATH, "app");
+        path.join(ANDROID_PROJECT_PATH, APP_DIR);
 };
 
 
@@ -153,6 +175,7 @@ module.exports = {
     getAppResourcesPathFromProjectData,
     getAndroidProjectPath,
     getAndroidRuntimeVersion,
+    getAndroidV8Version,
     getPackageJson,
     getProjectDir,
     getWebpackConfig,

snapshot/android/project-snapshot-generator.js

@@ -14,6 +14,7 @@ const {
     getPackageJson,
     getAndroidRuntimeVersion,
     getAndroidProjectPath,
+    getAndroidV8Version,
     resolveAndroidAppPath,
     resolveAndroidConfigurationsPath,
 } = require("../../projectHelpers");
@@ -160,6 +161,12 @@ ProjectSnapshotGenerator.prototype.getV8Version = function (generationOptions) {
             return resolve(maybeV8Version);
         }
 
+        // try to get the V8 Version from the settings.json file in android runtime folder
+        const runtimeV8Version = getAndroidV8Version(this.options.projectRoot);
+        if(runtimeV8Version) {
+            return resolve(runtimeV8Version);
+        }
+
         const runtimeVersion = getAndroidRuntimeVersion(this.options.projectRoot);
         getV8VersionsMap(runtimeVersion)
             .then(({ versionsMap, latest }) => {

snapshot/android/snapshot-generator.js

@@ -94,7 +94,7 @@ SnapshotGenerator.prototype.runMksnapshotTool = function(snapshotToolsPath, inpu
 
             const androidArch = this.convertToAndroidArchName(arch);
             console.log("***** Generating snapshot for " + androidArch + " *****");
-            
+
             // Generate .blob file
             const currentArchBlobOutputPath = join(this.buildPath, "snapshots/blobs", androidArch);
             shelljs.mkdir("-p", currentArchBlobOutputPath);
@@ -157,14 +157,16 @@ SnapshotGenerator.prototype.generate = function(options) {
     if (!options.snapshotToolsPath) { throw new Error("snapshotToolsPath option is not specified."); }
     const preprocessedInputFile = options.preprocessedInputFile ||  join(this.buildPath, "inputFile.preprocessed");
 
+    console.log("***** Starting snapshot generation using V8 version: ", options.v8Version);
+
     this.preprocessInputFiles(options.inputFiles, preprocessedInputFile);
 
     // generates the actual .blob and .c files
     return this.runMksnapshotTool(
-        options.snapshotToolsPath, 
-        preprocessedInputFile, 
-        options.v8Version, 
-        options.targetArchs, 
+        options.snapshotToolsPath,
+        preprocessedInputFile,
+        options.v8Version,
+        options.targetArchs,
         options.useLibs
     ).then(() => {
         this.buildIncludeGradle();