Function build

packages/go/src/index.ts:136–347

(options: BuildOptions)

export const version = 3;

export async function build(options: BuildOptions) {
  const {
    files,
    config,
    workPath,
    meta = {},
    service,
    registerPreDeploy,
  } = options;
  let { entrypoint } = options;

  const goPath = await getWriteableDirectory();
  const srcPath = join(goPath, 'src', 'lambda');
  const downloadPath = meta.skipDownload ? workPath : srcPath;
  await download(files, downloadPath, meta);

  // keep track of file system actions we need to undo
  // the keys "from" and "to" refer to what needs to be done
  // in order to undo the action, not what the original action was
  const undo: UndoActions = {
    fileActions: [],
    directoryCreation: [],
    functionRenames: [],
  };

  const env = cloneEnv(process.env, meta.env, {
    GOARCH: 'amd64',
    GOOS: 'linux',
  });

  try {
    if (env.GIT_CREDENTIALS) {
      debug('Initialize Git credentials...');
      await initPrivateGit(env.GIT_CREDENTIALS);
    }

    if (env.GO111MODULE) {
      console.log(`\nManually assigning 'GO111MODULE' is not recommended.

  By default:
    - 'GO111MODULE=on' If entrypoint package name is not 'main'
    - 'GO111MODULE=off' If entrypoint package name is 'main'

  We highly recommend you leverage Go Modules in your project.
  Learn more: https://github.com/golang/go/wiki/Modules
  `);
    }

    // Standalone server mode when framework is 'go' or 'services'
    if (config?.framework === 'go' || config?.framework === 'services') {
      const resolvedEntrypoint = await detectGoEntrypoint(workPath, entrypoint);
      if (!resolvedEntrypoint) {
        throw new Error(
          `No Go entrypoint found. Expected one of: ${GO_CANDIDATE_ENTRYPOINTS.join(', ')}`
        );
      }
      debug(`Using standalone Go server mode for ${resolvedEntrypoint}`);
      return buildStandaloneServer({