snowpack/lib/esm/commands/build.js

The ESM-powered frontend build tool. Fast, lightweight, unbundled.

import { logger } from '../logger';
import { createBuildState, maybeCleanBuildDirectory, addBuildFilesFromMountpoints, buildFiles, buildDependencies, optimize, writeToDisk, postBuildCleanup, startWatch, } from '../build/process';
export async function build(commandOptions) {
    const buildState = await createBuildState(commandOptions);
    // Start by cleaning the directory
    maybeCleanBuildDirectory(buildState);
    await addBuildFilesFromMountpoints(buildState);
    await buildFiles(buildState);
    await buildDependencies(buildState);
    await writeToDisk(buildState);
    // "--watch" mode - Start watching the file system.
    if (buildState.isWatch) {
        return startWatch(buildState);
    }
    await optimize(buildState);
    await postBuildCleanup(buildState);
    return {
        onFileChange: () => {
            throw new Error('build().onFileChange() only supported in "watch" mode.');
        },
        shutdown: () => {
            throw new Error('build().shutdown() only supported in "watch" mode.');
        },
    };
}
export async function command(commandOptions) {
    try {
        commandOptions.config.devOptions.output =
            commandOptions.config.devOptions.output ||
                (commandOptions.config.buildOptions.watch ? 'dashboard' : 'stream');
        await build(commandOptions);
    }
    catch (err) {
        logger.error(err.message);
        logger.error(err.stack);
        process.exit(1);
    }
    if (commandOptions.config.buildOptions.watch) {
        // We intentionally never want to exit in watch mode!
        return new Promise(() => { });
    }
}