lambda-live-debugger/dist/configuration/getConfigFromTsConfigFile.mjs

Debug Lambda functions locally like it is running in the cloud

import { outputFolder } from '../constants.mjs';
import * as esbuild from 'esbuild';
import * as url from 'url';
import * as path from 'path';
import fs from 'fs/promises';
/**
 * Get configuration from ts config file
 * @param configFile Config file
 * @returns Configuration
 */
export async function getConfigTsFromConfigFile(configFile) {
    const compileOutput = path.resolve(`${outputFolder}/configCompiled.mjs`);
    // if file does not exist, return empty config
    try {
        await fs.stat(configFile);
    }
    catch {
        return undefined;
    }
    try {
        // Build CDK code
        await esbuild.build({
            entryPoints: [configFile],
            bundle: false,
            keepNames: true,
            platform: 'node',
            metafile: true,
            target: 'esnext',
            format: 'esm',
            outfile: compileOutput,
            sourcemap: true,
            treeShaking: true,
            tsconfigRaw: {
                compilerOptions: {
                    esModuleInterop: true,
                    skipLibCheck: true,
                    target: 'esnext',
                    allowJs: true,
                    resolveJsonModule: true,
                    moduleDetection: 'force',
                    isolatedModules: true,
                    verbatimModuleSyntax: false,
                    strict: true,
                    noUncheckedIndexedAccess: true,
                    noImplicitOverride: true,
                    module: 'NodeNext',
                    sourceMap: true,
                    lib: ['esnext'],
                },
            },
            banner: {
                js: [
                    `import { createRequire as topLevelCreateRequire } from 'module';`,
                    `const require = topLevelCreateRequire(import.meta.url);`,
                ].join(''),
            },
        });
    }
    catch (error) {
        throw new Error(`Error building config file ${configFile}: ${error.message}`, { cause: error });
    }
    const { href } = url.pathToFileURL(compileOutput);
    const config = await import(href);
    return config;
}