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compose-framework.js
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/**
* Copyright (c) Meta Platforms, Inc. and affiliates.
*
* This source code is licensed under the MIT license found in the
* LICENSE file in the root directory of this source tree.
*
* @flow
* @format
* @oncall react_native
*/
const {HEADERS_FOLDER, TARGET_FOLDER} = require('./constants');
const {execSync} = require('child_process');
const fs = require('fs');
const path = require('path');
/*::
import type { Dependency, Platform } from './types';
*/
/**
* Composes the final XCFramework from the artifacts in the build folder
*/
async function createFramework(
scheme /*: string */,
configuration /*: string */,
dependencies /*: $ReadOnlyArray<Dependency> */,
rootFolder /*: string */,
buildFolder /*: string */,
identity /*: ?string */,
) {
console.log('✅ Composing iOS XCFramework...');
// Get the build destination path from the prebuild step
const frameworksOutputFolder = path.join(buildFolder, 'Build', 'Products');
const frameworks = fs.readdirSync(frameworksOutputFolder);
console.log('Frameworks found:', frameworks.join(', '));
const frameworkPaths = frameworks.map(framework =>
path.join(frameworksOutputFolder, framework),
);
const output = path.join(rootFolder, `${scheme}.xcframework`);
// Check if output already exists and delete it
fs.rmSync(output, {recursive: true, force: true});
console.log('Output path:', output);
const frameworksArgs = frameworkPaths
.map(
framework =>
`-framework ${path.join(
framework,
'PackageFrameworks',
`${scheme}.framework`,
)}`,
)
.join(' ');
const command = `xcodebuild -create-xcframework ${frameworksArgs} -output ${output} `;
execSync(command, {stdio: 'inherit'});
// Copy bundles into the framework
copyBundles(scheme, dependencies, output, frameworkPaths);
// Copy headers to the framework - start by building the Header folder
await copyHeaders(scheme, dependencies, rootFolder);
// Copy Symbols to symbols folder
const symbolPaths = frameworkPaths.map(framework =>
path.join(framework, `${scheme}.framework.dSYM`),
);
console.log('Copying symbols to symbols folder...');
const symbolOutput = path.join(rootFolder, 'Symbols');
fs.mkdirSync(symbolOutput, {recursive: true});
symbolPaths.forEach(symbol => execSync(`cp -r ${symbol} ${symbolOutput}`));
if (identity) {
signXCFramework(identity, output);
}
}
/**
* Copies headers needed from the package to a Header folder that we'll pass to
* each framework arch type
*/
async function copyHeaders(
scheme /*: string */,
dependencies /*: $ReadOnlyArray<Dependency> */,
rootFolder /*: string */,
) {
console.log('Copying header files for dependencies...');
// Create and clean the header folder
const headeDestinationFolder = path.join(
rootFolder,
`${scheme}.xcframework`,
'Headers',
);
fs.rmSync(headeDestinationFolder, {force: true, recursive: true});
fs.mkdirSync(headeDestinationFolder, {recursive: true});
// Now we can go through all dependencies and copy header files for each depencendy
dependencies.forEach(dep => {
const depHeaders = path.join(
rootFolder,
dep.name,
TARGET_FOLDER,
HEADERS_FOLDER,
);
// Copy all header files from the dependency to headerTempFolder
execSync(`cp -r ${depHeaders}/* ${headeDestinationFolder}/`);
});
}
/**
* Copies the bundles in the source frameworks to the target xcframework inside the xcframework's Resources folder
*/
function copyBundles(
scheme /*: string */,
dependencies /*: $ReadOnlyArray<Dependency> */,
outputFolder /*:string*/,
frameworkPaths /*:Array<string>*/,
) {
console.log('Copying bundles to the framework...');
// Let's precalculate the target folder. It is the xcframework's output folder with
// all its targets.
const targetArchFolders = fs
.readdirSync(outputFolder)
.map(p => path.join(outputFolder, p))
.filter(p => fs.statSync(p).isDirectory());
// For each framework (in frameworkPaths), copy the bundles from the source folder.
// A bundle is the name of the framework + _ + target name + .bundle. We can
// check if the target has a bundle by checking if it defines one or more resources.
frameworkPaths.forEach(frameworkPath => {
dependencies.forEach(dep => {
const resources = dep.files.resources;
if (!resources || resources.length === 0) {
return;
}
// Get bundle source folder
const bundleName = `${scheme}_${dep.name}.bundle`;
const sourceBundlePath = path.join(frameworkPath, bundleName);
if (fs.existsSync(sourceBundlePath)) {
// Target folder - needs to be copied to the resulting framework
targetArchFolders.forEach(targetArchFolder => {
const targetBundlePath = path.join(
targetArchFolder,
`${scheme}.framework`,
bundleName,
);
// A bundle is a directory, so we need to copy the whole directory
execSync(`cp -r "${sourceBundlePath}/" "${targetBundlePath}"`);
});
} else {
console.warn(`Bundle ${sourceBundlePath} not found`);
}
});
});
}
function signXCFramework(
identity /*: string */,
xcframeworkPath /*: string */,
) {
console.log('Signing XCFramework...');
const command = `codesign --timestamp --sign "${identity}" ${xcframeworkPath}`;
execSync(command, {stdio: 'inherit'});
}
module.exports = {createFramework};