initial commit

node_modules/local-pkg/index.mjs

@@ -0,0 +1,101 @@
+import { dirname, join } from 'path'
+import { existsSync, promises as fs, readFileSync } from 'fs'
+import { createRequire } from 'module'
+
+export { loadPackageJSON, isPackageListed } from './dist/shared.mjs'
+
+const _require = createRequire(import.meta.url)
+
+export function resolveModule(name, options) {
+  try {
+    return _require.resolve(name, options)
+  }
+  catch (e) {
+    return undefined
+  }
+}
+
+export function importModule(path) {
+  return import(path).then((i) => {
+    if (i && i.default && i.default.__esModule)
+      return i.default
+    return i
+  })
+}
+
+export function isPackageExists(name, options) {
+  return !!resolvePackage(name, options)
+}
+
+function getPackageJsonPath(name, options) {
+  const entry = resolvePackage(name, options)
+  if (!entry)
+    return
+
+  return searchPackageJSON(entry)
+}
+
+export async function getPackageInfo(name, options) {
+  const packageJsonPath = getPackageJsonPath(name, options)
+  if (!packageJsonPath)
+    return
+
+  const pkg = JSON.parse(await fs.readFile(packageJsonPath, 'utf8'))
+
+  return {
+    name,
+    version: pkg.version,
+    rootPath: dirname(packageJsonPath),
+    packageJsonPath,
+    packageJson: pkg,
+  }
+}
+
+export function getPackageInfoSync(name, options) {
+  const packageJsonPath = getPackageJsonPath(name, options)
+  if (!packageJsonPath)
+    return
+
+  const pkg = JSON.parse(readFileSync(packageJsonPath, 'utf8'))
+
+  return {
+    name,
+    version: pkg.version,
+    rootPath: dirname(packageJsonPath),
+    packageJsonPath,
+    packageJson: pkg,
+  }
+}
+
+function resolvePackage(name, options = {}) {
+  try {
+    return _require.resolve(`${name}/package.json`, options)
+  }
+  catch {
+  }
+  try {
+    return _require.resolve(name, options)
+  }
+  catch (e) {
+    if (e.code !== 'MODULE_NOT_FOUND')
+      console.error(e)
+    return false
+  }
+}
+
+function searchPackageJSON(dir) {
+  let packageJsonPath
+  while (true) {
+    if (!dir)
+      return
+    const newDir = dirname(dir)
+    if (newDir === dir)
+      return
+    dir = newDir
+    packageJsonPath = join(dir, 'package.json')
+    if (existsSync(packageJsonPath))
+      break
+  }
+
+  return packageJsonPath
+}