knip/dist/plugins/metro/index.js

Find and fix unused dependencies, exports and files in your TypeScript and JavaScript projects

import { compact } from "../../util/array.js";
import { toDeferResolve, toProductionEntry } from "../../util/input.js";
import { join } from "../../util/path.js";
import { hasDependency } from "../../util/plugin.js";
const title = 'Metro';
const enablers = ['metro', '@react-native/metro-config', 'expo'];
const isEnabled = options => hasDependency(options.dependencies, enablers);
const config = [
    'metro.config.{js,cjs,mjs,ts,cts,mts,json}',
    '.config/metro.{js,cjs,mjs,ts,cts,mts,json}',
    'package.json',
];
const DEFAULT_PLATFORMS = ['ios', 'android', 'windows', 'web'];
const PLATFORMS = [...DEFAULT_PLATFORMS, 'native', 'default'];
const DEFAULT_EXTENSIONS = ['js', 'jsx', 'json', 'ts', 'tsx'];
const DEFAULT_TRANSFORMER_PACKAGE = 'metro-transform-worker';
const DEFAULT_MINIFIER_PACKAGE = 'metro-minify-terser';
const production = [`src/**/*.{${PLATFORMS.join(',')}}.{${DEFAULT_EXTENSIONS.join(',')}}`];
const resolveConfig = async (config) => {
    const { transformerPath, transformer } = config;
    const i = new Set();
    const inputs = [];
    const platformEntryPatterns = compact(PLATFORMS.concat(config.resolver?.platforms ?? []));
    const sourceExts = config.resolver?.sourceExts ?? DEFAULT_EXTENSIONS;
    const pattern = `src/**/*.{${platformEntryPatterns.join(',')}}.{${sourceExts.join(',')}}`;
    if (!config.projectRoot) {
        i.add(toProductionEntry(pattern));
    }
    else {
        const entryFilePattern = 'index.{js,jsx,ts,tsx}';
        const entryFilePath = join(config.projectRoot, entryFilePattern);
        const entryFilePaths = join(config.projectRoot, pattern);
        i.add(toProductionEntry(entryFilePath));
        i.add(toProductionEntry(entryFilePaths));
    }
    if (transformerPath)
        inputs.push(transformerPath);
    if (transformer?.assetPlugins)
        inputs.push(...transformer.assetPlugins);
    if (transformer?.minifierPath)
        inputs.push(transformer.minifierPath);
    if (transformer?.babelTransformerPath)
        inputs.push(transformer.babelTransformerPath);
    return Array.from(i).concat([...inputs].map(id => toDeferResolve(id, {
        optional: id === DEFAULT_TRANSFORMER_PACKAGE || id === DEFAULT_MINIFIER_PACKAGE,
    })));
};
const isFilterTransitiveDependencies = true;
const note = `False positives for platform-specific unused files?
Override the default \`entry\` patterns to match platforms and extensions.`;
export const docs = { note };
const plugin = {
    title,
    enablers,
    isEnabled,
    config,
    production,
    resolveConfig,
    isFilterTransitiveDependencies,
};
export default plugin;