import type { Nuxt, NuxtModule } from '@nuxt/schema' import { useNuxt } from '../context' import { resolveModule, requireModule, importModule } from '../internal/cjs' import { resolveAlias } from '../resolve' /** Installs a module on a Nuxt instance. */ export async function installModule (moduleToInstall: string | NuxtModule, _inlineOptions?: any, _nuxt?: Nuxt) { const nuxt = useNuxt() const { nuxtModule, inlineOptions } = await normalizeModule(moduleToInstall, _inlineOptions) // Call module const res = await nuxtModule(inlineOptions, nuxt) if (res === false /* setup aborted */) { return } if (typeof moduleToInstall === 'string') { nuxt.options.build.transpile.push(moduleToInstall) } nuxt.options._installedModules = nuxt.options._installedModules || [] nuxt.options._installedModules.push({ meta: await nuxtModule.getMeta?.(), entryPath: typeof moduleToInstall === 'string' ? resolveAlias(moduleToInstall) : undefined }) } // --- Internal --- async function normalizeModule (nuxtModule: string | NuxtModule, inlineOptions?: any) { const nuxt = useNuxt() // Import if input is string if (typeof nuxtModule === 'string') { const _src = resolveModule(resolveAlias(nuxtModule), { paths: nuxt.options.modulesDir }) // TODO: also check with type: 'module' in closest `package.json` const isESM = _src.endsWith('.mjs') try { nuxtModule = isESM ? await importModule(_src) : requireModule(_src) } catch (error: unknown) { console.error(`Error while requiring module \`${nuxtModule}\`: ${error}`) throw error } } // Throw error if input is not a function if (typeof nuxtModule !== 'function') { throw new TypeError('Nuxt module should be a function: ' + nuxtModule) } return { nuxtModule, inlineOptions } as { nuxtModule: NuxtModule, inlineOptions: undefined | Record } }