createModuleInspector.js

const { builtinModules: builtinPackages } = require('module')
// [email protected]
const { createModuleInspector } = require('lavamoat-core')

const inspector = createModuleInspector({
  // used to see if this imports builtins
  isBuiltin: (name) => builtinPackages.includes(name),
  // adds some notes on ses compat, etc
  includeDebugInfo: true,
})

inspector.inspectModule({
  // unique name, may be same as filename
  specifier: 'string',
  // filename
  file: 'node_modules/xyz/index.js'
  // does not include version
  packageName: '',
  // { js, builtin, native }
  type: 'js',
  // the code, no module initializer wrapper
  content: 'module.exports = 42',
  // key is requestedName, value is specifier
  importMap: {
    './util': 'node_modules/xyz/util.js'
  },
  // (optional) pregenerated babel ast
  ast: undefined,
})

const config = inspector.generateConfig()

// package policy is here
//   config.resouces[packageName]
// debug info is here
//   config.debugInfo[moduleSpecifier]