Function mergePackageJSON

packages/create/src/package-json.ts:6–57

(
  packageJSON: Record<string, any>,
  overlayPackageJSON?: Record<string, any>,
)

import type { Options } from './types.js'

export function mergePackageJSON(
  packageJSON: Record<string, any>,
  overlayPackageJSON?: Record<string, any>,
) {
  const mergedPackageJSON: Record<string, any> = {
    ...packageJSON,
    ...(overlayPackageJSON || {}),
    dependencies: {
      ...packageJSON.dependencies,
      ...(overlayPackageJSON?.dependencies || {}),
    },
    devDependencies: {
      ...packageJSON.devDependencies,
      ...(overlayPackageJSON?.devDependencies || {}),
    },
    scripts: {
      ...packageJSON.scripts,
      ...(overlayPackageJSON?.scripts || {}),
    },
  }

  const baseOnlyBuiltDependencies = Array.isArray(
    packageJSON.pnpm?.onlyBuiltDependencies,
  )
    ? packageJSON.pnpm.onlyBuiltDependencies
    : []
  const overlayOnlyBuiltDependencies = Array.isArray(
    overlayPackageJSON?.pnpm?.onlyBuiltDependencies,
  )
    ? overlayPackageJSON.pnpm.onlyBuiltDependencies
    : []

  const onlyBuiltDependencies = [
    ...new Set([
      ...baseOnlyBuiltDependencies,
      ...overlayOnlyBuiltDependencies,
    ]),
  ]

  if (packageJSON.pnpm || overlayPackageJSON?.pnpm) {
    mergedPackageJSON.pnpm = {
      ...packageJSON.pnpm,
      ...overlayPackageJSON?.pnpm,
    }

    if (onlyBuiltDependencies.length) {
      mergedPackageJSON.pnpm.onlyBuiltDependencies = onlyBuiltDependencies
    }
  }

  return mergedPackageJSON
}

export function createPackageJSON(options: Options) {
  const packageManager = options.packageManager