Function copyAssetsPlugin

packages/vite/src/copyAssetsPlugin.ts:10–120

(options: AlphaTabVitePluginOptions)

 * @public
 */
export function copyAssetsPlugin(options: AlphaTabVitePluginOptions): Plugin {
    let resolvedConfig: ResolvedConfig;
    let output = false;

    return {
        name: 'vite-plugin-alphatab-copy',
        enforce: 'pre',
        configResolved(config) {
            resolvedConfig = config as ResolvedConfig;
        },
        buildEnd() {
            // reset for watch mode
            output = false;
        },
        async buildStart() {
            // run copy only once even if multiple bundles are generated
            if (output) {
                return;
            }
            output = true;

            let alphaTabSourceDir = options.alphaTabSourceDir;
            if (!alphaTabSourceDir) {
                try {
                    const isEsm = typeof import.meta.url === 'string';
                    if (isEsm) {
                        alphaTabSourceDir = url.fileURLToPath(import.meta.resolve('@coderline/alphatab'));
                    } else {
                        alphaTabSourceDir = require.resolve('@coderline/alphatab');
                    }

                    alphaTabSourceDir = path.resolve(alphaTabSourceDir, '..');

                    // walk up to package.json
                    while (alphaTabSourceDir) {
                        if (
                            await fs.promises
                                .access(path.join(alphaTabSourceDir, 'package.json'), fs.constants.F_OK)
                                .then(() => true)
                                .catch(() => false)
                        ) {
                            // found package directory
                            alphaTabSourceDir = path.resolve(alphaTabSourceDir, 'dist');
                            break;
                        } else {
                            // reached root
                            const parent = path.resolve(alphaTabSourceDir, '..');
                            if (parent === alphaTabSourceDir) {
                                alphaTabSourceDir = undefined;
                            } else {
                                alphaTabSourceDir = parent;
                            }
                        }
                    }
                } catch {
                    alphaTabSourceDir = path.join(resolvedConfig.root, 'node_modules/@coderline/alphatab/dist/');
                }
            }