浅谈React原生APP更新

/**
 * 比较两版本号 
 * @param currentVersion 
 * @return boolean 
 * true=需要更新 false=不需要 
 */
compareVersion = (currentVersion: string): boolean => {
    const {versionName: remoteVersion} = this.remoteInfo || {}
    if (!remoteVersion) {
        return false
    }
    if (currentVersion === remoteVersion) {
        return false
    }
    const currentVersionArr = currentVersion.split('.')
    const remoteVersionArr = remoteVersion.split('.')
    for (let i = 0; i < 3; i++) {
        if (Number(currentVersionArr[i]) < Number(remoteVersionArr[i])) {
            return true
        }
    } 
    return false
}

@ReactMethod
public void installApk(String filePath, String fileProviderAuthority) {
    File file = new File(filePath);
    if (!file.exists()) {
        Log.e("RNUpdater", "installApk: file doe snot exist '" + filePath + "'");
        // FIXME this should take a promise and fail it
 return;
    }
    if (Build.VERSION.SDK_INT >= 24) {
        // API24 and up has a package installer that can handle FileProvider content:// URIs
 Uri contentUri;
        try {
            contentUri = FileProvider.getUriForFile(getReactApplicationContext(), fileProviderAuthority, file);
        } catch (Exception e) {
            // FIXME should be a Promise.reject really
 Log.e("RNUpdater", "installApk exception with authority name '" + fileProviderAuthority + "'", e);
            throw e;
        }
        Intent installApp = new Intent(Intent.ACTION_INSTALL_PACKAGE);
        installApp.addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION);
        installApp.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
        installApp.setData(contentUri);
        installApp.putExtra(Intent.EXTRA_INSTALLER_PACKAGE_NAME, reactContext.getApplicationInfo().packageName);
        reactContext.startActivity(installApp);
    } else {
        // Old APIs do not handle content:// URIs, so use an old file:// style
 String cmd = "chmod 777 " + file;
        try {
            Runtime.getRuntime().exec(cmd);
        } catch (Exception e) {
            e.printStackTrace();
        }
        Intent intent = new Intent(Intent.ACTION_VIEW);
        intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
        intent.setDataAndType(Uri.parse("file://" + file), "application/vnd.android.package-archive");
        reactContext.startActivity(intent);
    }
}

androidVersionFilePath="$WORKSPACE/android/app/build.gradle"  // 通过此文件获取安卓的版本信息
iosVersionFilePath="$WORKSPACE/ios/veronica/Info.plist" // 通过此文件获取iOS的版本信息
changeLogPath="$WORKSPACE/change.log" // 将版本更新信息存储在此文件中

getAndroidVersion(){
  androidVersion=$(cat $androidVersionFilePath  | grep "versionName" | awk '{print $2}' | sed 's/\"//g')
  androidCode=$(cat $androidVersionFilePath  | grep "versionCode " | awk '{print $2}' | sed 's/\"//g')
  androidDelete=$(cat $androidVersionFilePath  | grep "deleteApp" | awk '{print $4}' | sed 's/\"//g')
  return 0
}

getIOSVersion(){
  rows=$(awk '/CFBundleShortVersionString/ {getline; print}' $iosVersionFilePath)
  iosVersion=$(echo "$rows" | sed -ne 's/<string>\(.*\)<\/string>/\1/p')
  iosVersion=$(echo "$iosVersion" | sed 's/^[[:space:]]*//')

  rows2=$(awk '/VersionCode/ {getline; print}' $iosVersionFilePath)
  iosCode=$(echo "$rows2" | sed -ne 's/<string>\(.*\)<\/string>/\1/p')
  iosCode=$(echo "$iosCode" | sed 's/^[[:space:]]*//')
  return 0
}

desc=$(cat $changeLogPath | tr "\n" "#")

sed -i '' "s/\"releaseInfo\":.*$/\"releaseInfo\": \"$desc\"/"  $JsonPath/$fileName
sed -i '' "s/\"versionName\":.*$/\"versionName\": \"$versionName\",/"  $JsonPath/$fileName
sed -i '' "s/\"versionCode\":.*$/\"versionCode\": \"$versionCode\",/"  $JsonPath/$fileName
sed -i '' "s/\"deleteApp\":.*$/\"deleteApp\": \"$deleteApp\",/"  $JsonPath/$fileName