@netlify/build/lib/plugins/child/load.js

Netlify build module

import { includeKeys } from 'filter-obj';
import { getLogic } from './logic.js';
import { registerTypeScript } from './typescript.js';
import { validatePlugin } from './validate.js';
// Load context passed to every plugin method.
// This also requires the plugin file and fire its top-level function.
// This also validates the plugin.
// Do it when parent requests it using the `load` event.
// Also figure out the list of plugin steps. This is also passed to the parent.
export const load = async function ({ pluginPath, inputs, packageJson, verbose, netlifyConfig }) {
    const tsNodeService = registerTypeScript(pluginPath);
    const logic = await getLogic({ pluginPath, inputs, tsNodeService, netlifyConfig });
    validatePlugin(logic);
    const methods = includeKeys(logic, isEventHandler);
    const events = Object.keys(methods);
    // Context passed to every event handler
    const context = { methods, inputs, packageJson, verbose };
    return { events, context };
};
const isEventHandler = function (_event, value) {
    return typeof value === 'function';
};