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metro.config.js
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metro.config.js
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/**
* Metro configuration for React Native
* https://github.com/facebook/react-native
*
* refer to:
* https://facebook.github.io/metro/docs/configuration/#extranodemodules
* https://medium.com/@dushyant_db/how-to-import-files-from-outside-of-root-directory-with-react-native-metro-bundler-18207a348427
*
* @format
*/
const path = require('path');
const fs = require('fs');
const _ = require('lodash');
const noob_dict_core_path = path.resolve(__dirname + '/modules/dep/node_modules/@noob9527/noob-dict-core/dist/lib-commonjs');
const extraNodeModules = {
'@noob9527/noob-dict-core': noob_dict_core_path,
};
const watchFolders = [
noob_dict_core_path
];
function _resolve_dep_path(name) {
const target = extraNodeModules;
const local_modules_path = path.join(process.cwd(), `node_modules/${name}`);
const dep_module_path = path.join(process.cwd(), 'modules', 'dep', `node_modules/${name}`);
const stub_modules_path = path.join(process.cwd(), 'modules', 'stub');
if (name in target) {
// console.log(name, `using ${target[name]}`)
return target[name];
} else if (fs.existsSync(local_modules_path)) {
// console.log(name, `using ${local_modules_path}`)
return local_modules_path;
} else if (fs.existsSync(dep_module_path)) {
// console.log(name, `using ${dep_module_path}`);
return dep_module_path;
} else {
// console.log(name, `using ${stub_modules_path}`);
return stub_modules_path;
}
}
const resolve_dep_path = _.memoize(_resolve_dep_path);
module.exports = {
transformer: {
getTransformOptions: async () => ({
transform: {
experimentalImportSupport: false,
inlineRequires: false,
},
}),
},
resolver: {
extraNodeModules: new Proxy(extraNodeModules, {
//redirects dependencies referenced from common/ to local node_modules
get: (target, name) => {
return resolve_dep_path(name);
}
}),
},
watchFolders,
};