how to disable HMR

[yinhangfeng]

Do you want to request a feature or report a bug?
feature

What is the current behavior?

• the hot option in parseOptionsFromUrl is always true
• HMR not compatible with es6 class? must use @babel/plugin-transform-classes
• HMR make debug hard

If the current behavior is a bug, please provide the steps to reproduce and a minimal repository on GitHub that we can yarn install and yarn test.

What is the expected behavior?
metro.config.js give a option to enable/disable HMR

Please provide your exact Metro configuration and mention your Metro, node, yarn/npm version and operating system.
Node: 8.11.3
Npm: 6.4.1
MacOS Mojave

[DimitryDushkin]

Here is how for RN >= 57

1. Create rn-cli.config.js

module.exports = {
    transformer: {
        babelTransformerPath: require.resolve('./scripts/customReactNativeTransformer')
    }
};

2. Create ./scripts/customReactNativeTransformer.js

const {
    transform,
    getCacheKey,
} = require('metro/src/reactNativeTransformer');

function customTransform(config) {
    config.options.hot = false;
    return transform(config);
}

module.exports = {
    transform: customTransform,
    getCacheKey,
};

3. Profit!

[stevelizcano]

I edited your method so that it works with the latest version of RN/Expo 33

mobxjs/mobx-react#690 (comment)