Add custom publishing script

Author: roryabraham

.gitignore

@@ -134,3 +134,5 @@ package-lock.json
 
 # Temporary files created by Metro to check the health of the file watcher
 .metro-health-check*
+
+react-native-*.tgz

README.md

@@ -1,3 +1,19 @@
+# Expensify Release
+
+To publish a new version run the following script, where `<base-version>` is the react-native version that the fork is based on, and `<fork-version>` is the version you want to publish. This will generate a tarball (`react-native-<fork-version>.tgz`) which can then be uploaded to a github release and consumed via npm.
+
+```bash
+node ./scripts/publish-npm-expensify.js --base-version <base-version> --fork-version <fork-version>
+```
+
+For example if the fork is based on [email protected] and our fork version is 0.71.3.
+
+```bash
+node ./scripts/publish-npm-expensify.js --base-version 0.71.0 --fork-version 0.71.3
+```
+
+If you encounter build issues you can add the `--clean` flag to delete some folder that might cause some cache issues.
+
 <h1 align="center">
   <a href="https://reactnative.dev/">
     React Native
@@ -56,6 +72,7 @@ React Native is developed and supported by many companies and individual core co
 
 ## Contents
 
+- [Expensify Release](#expensify-release)
 - [Requirements](#-requirements)
 - [Building your first React Native app](#-building-your-first-react-native-app)
 - [Documentation](#-documentation)

ReactAndroid/.npmignore

@@ -8,3 +8,5 @@ src/main/third-party/
 # Exclude Android & JVM tests
 src/test/
 src/androidTest/
+# Exclude prebuilt
+src/main/jni/prebuilt/lib/

scripts/publish-npm-expensify.js

@@ -0,0 +1,91 @@
+/**
+ * @format
+ */
+
+'use strict';
+
+const {exec, echo, exit, sed, rm} = require('shelljs');
+const os = require('os');
+const path = require('path');
+const yargs = require('yargs');
+
+const argv = yargs
+  .option('base-version', {
+    type: 'string',
+  })
+  .option('fork-version', {
+    type: 'string',
+  })
+  .option('clean', {
+    type: 'boolean',
+    default: false,
+  })
+  .strict().argv;
+const baseVersion = argv.baseVersion;
+const forkVersion = argv.forkVersion;
+const clean = argv.clean;
+
+if (clean) {
+  rm('-rf', path.join(__dirname, '../android'));
+  rm('-rf', path.join(__dirname, '../sdks/download'));
+  rm('-rf', path.join(__dirname, '../sdks/hermes'));
+  rm('-rf', path.join(__dirname, '../sdks/hermesc'));
+}
+
+// Update the version number.
+if (
+  exec(
+    `node scripts/set-rn-version.js --to-version ${forkVersion} --build-type release`,
+  ).code
+) {
+  echo(`Failed to set version number to ${forkVersion}`);
+  exit(1);
+}
+
+// Use the hermes prebuilt binaries from the base version.
+sed(
+  '-i',
+  /^version = .*$/,
+  `version = '${baseVersion}'`,
+  path.join(__dirname, '../sdks/hermes-engine/hermes-engine.podspec'),
+);
+
+// Download hermesc from the base version.
+const rnTmpDir = path.join(os.tmpdir(), 'hermesc');
+const rnTgzOutput = path.join(rnTmpDir, `react-native-${baseVersion}.tgz`);
+const hermescDest = path.join(__dirname, '../sdks');
+exec(`mkdir -p ${rnTmpDir}`);
+if (
+  exec(
+    `curl https://registry.npmjs.com/react-native/-/react-native-${baseVersion}.tgz --output ${rnTgzOutput}`,
+  ).code
+) {
+  echo('Failed to download base react-native package');
+  exit(1);
+}
+if (exec(`tar -xvf ${rnTgzOutput} -C ${rnTmpDir}`).code) {
+  echo('Failed to extract base react-native package');
+  exit(1);
+}
+exec(`mkdir -p ${hermescDest}`);
+if (
+  exec(`cp -r ${path.join(rnTmpDir, 'package/sdks/hermesc')} ${hermescDest}`)
+    .code
+) {
+  echo('Failed to copy hermesc from base react-native package');
+  exit(1);
+}
+
+// Build the android artifacts in the npm package.
+if (exec('./gradlew publishAllInsideNpmPackage').code) {
+  echo('Could not generate artifacts');
+  exit(1);
+}
+
+// Generate tarball.
+if (exec('npm pack').code) {
+  echo('Failed to generate tarball');
+  exit(1);
+} else {
+  exit(0);
+}

sdks/hermes-engine/hermes-engine.podspec

@@ -8,8 +8,8 @@ require_relative "./hermes-utils.rb"
 
 react_native_path = File.join(__dir__, "..", "..")
 
-# Whether Hermes is built for Release or Debug is determined by the PRODUCTION envvar.
-build_type = ENV['PRODUCTION'] == "1" ? :release : :debug
+# Always use release build of hermes.
+build_type = :release
 
 # package.json
 package = JSON.parse(File.read(File.join(react_native_path, "package.json")))