Print reason when node engine does not match

src/lib/getEnginesNodeFromRegistry.ts

@@ -0,0 +1,35 @@
+import ProgressBar from 'progress'
+import { Index } from '../types/IndexType'
+import { Options } from '../types/Options'
+import { VersionSpec } from '../types/VersionSpec'
+import getPackageManager from './getPackageManager'
+
+/**
+ * Get the engines.node versions from the NPM repository based on the version target.
+ *
+ * @param packageMap   An object whose keys are package name and values are version
+ * @param [options={}] Options.
+ * @returns Promised {packageName: engines.node} collection
+ */
+async function getEnginesNodeFromRegistry(packageMap: Index<VersionSpec>, options: Options) {
+  const packageManager = getPackageManager(options, options.packageManager)
+  if (!packageManager.getEngines) return {}
+
+  const numItems = Object.keys(packageMap).length
+  let bar: ProgressBar
+  if (!options.json && options.loglevel !== 'silent' && options.loglevel !== 'verbose' && numItems > 0) {
+    bar = new ProgressBar('[:bar] :current/:total :percent', { total: numItems, width: 20 })
+    bar.render()
+  }
+
+  return Object.entries(packageMap).reduce(async (accumPromise, [pkg, version]) => {
+    const enginesNode = (await packageManager.getEngines!(pkg, version, options)).node
+    if (bar) {
+      bar.tick()
+    }
+    const accum = await accumPromise
+    return { ...accum, [pkg]: enginesNode }
+  }, Promise.resolve<Index<VersionSpec | undefined>>({}))
+}
+
+export default getEnginesNodeFromRegistry

src/lib/getIgnoredUpgradesDueToEnginesNode.ts

@@ -0,0 +1,49 @@
+import { minVersion, satisfies } from 'semver'
+import { IgnoredUpgradeDueToEnginesNode } from '../types/IgnoredUpgradeDueToEnginesNode'
+import { Index } from '../types/IndexType'
+import { Maybe } from '../types/Maybe'
+import { Options } from '../types/Options'
+import { Version } from '../types/Version'
+import { VersionSpec } from '../types/VersionSpec'
+import getEnginesNodeFromRegistry from './getEnginesNodeFromRegistry'
+import upgradePackageDefinitions from './upgradePackageDefinitions'
+
+/** Checks if package.json min node version satisfies given package engine.node spec */
+const satisfiesNodeEngine = (enginesNode: Maybe<VersionSpec>, optionsEnginesNodeMinVersion: Version) =>
+  !enginesNode || satisfies(optionsEnginesNodeMinVersion, enginesNode)
+
+/** Get all upgrades that are ignored due to incompatible engines.node. */
+export async function getIgnoredUpgradesDueToEnginesNode(
+  current: Index<VersionSpec>,
+  upgraded: Index<VersionSpec>,
+  options: Options = {},
+) {
+  if (!options.nodeEngineVersion) return {}
+  const optionsEnginesNodeMinVersion = minVersion(options.nodeEngineVersion)?.version
+  if (!optionsEnginesNodeMinVersion) return {}
+  const [upgradedLatestVersions] = await upgradePackageDefinitions(current, {
+    ...options,
+    enginesNode: false,
+    nodeEngineVersion: undefined,
+    loglevel: 'silent',
+  })
+  const enginesNodes = await getEnginesNodeFromRegistry(upgradedLatestVersions, options)
+  return Object.entries(upgradedLatestVersions)
+    .filter(
+      ([pkgName, newVersion]) =>
+        upgraded[pkgName] !== newVersion && !satisfiesNodeEngine(enginesNodes[pkgName], optionsEnginesNodeMinVersion),
+    )
+    .reduce(
+      (accum, [pkgName, newVersion]) => ({
+        ...accum,
+        [pkgName]: {
+          from: current[pkgName],
+          to: newVersion,
+          enginesNode: enginesNodes[pkgName]!,
+        },
+      }),
+      {} as Index<IgnoredUpgradeDueToEnginesNode>,
+    )
+}
+
+export default getIgnoredUpgradesDueToEnginesNode

src/lib/getIgnoredUpgrades.ts → src/lib/getIgnoredUpgradesDueToPeerDeps.ts

@@ -1,13 +1,13 @@
 import { satisfies } from 'semver'
-import { IgnoredUpgrade } from '../types/IgnoredUpgrade'
+import { IgnoredUpgradeDueToPeerDeps } from '../types/IgnoredUpgradeDueToPeerDeps'
 import { Index } from '../types/IndexType'
 import { Options } from '../types/Options'
 import { Version } from '../types/Version'
 import { VersionSpec } from '../types/VersionSpec'
 import upgradePackageDefinitions from './upgradePackageDefinitions'
 
 /** Get all upgrades that are ignored due to incompatible peer dependencies. */
-export async function getIgnoredUpgrades(
+export async function getIgnoredUpgradesDueToPeerDeps(
   current: Index<VersionSpec>,
   upgraded: Index<VersionSpec>,
   upgradedPeerDependencies: Index<Index<Version>>,
@@ -41,8 +41,8 @@ export async function getIgnoredUpgrades(
             ),
         },
       }),
-      {} as Index<IgnoredUpgrade>,
+      {} as Index<IgnoredUpgradeDueToPeerDeps>,
     )
 }
 
-export default getIgnoredUpgrades
+export default getIgnoredUpgradesDueToPeerDeps

src/lib/getPeerDependenciesFromRegistry.ts

@@ -59,23 +59,19 @@ async function getPeerDependenciesFromRegistry(packageMap: Index<Version>, optio
     bar.render()
   }
 
-  const peerDependencies: Index<Index<string>> = Object.entries(packageMap).reduce(
-    async (accumPromise, [pkg, version]) => {
-      const dep = await packageManager.getPeerDependencies!(pkg, version)
-      if (bar) {
-        bar.tick()
-      }
-      const accum = await accumPromise
-      const newAcc: Index<Index<string>> = { ...accum, [pkg]: dep }
-      const circularData = isCircularPeer(newAcc, pkg)
-      if (circularData.isCircular) {
-        delete newAcc[pkg][circularData.offendingPackage]
-      }
-      return newAcc
-    },
-    {},
-  )
-  return peerDependencies
+  return Object.entries(packageMap).reduce(async (accumPromise, [pkg, version]) => {
+    const dep = await packageManager.getPeerDependencies!(pkg, version)
+    if (bar) {
+      bar.tick()
+    }
+    const accum = await accumPromise
+    const newAcc: Index<Index<string>> = { ...accum, [pkg]: dep }
+    const circularData = isCircularPeer(newAcc, pkg)
+    if (circularData.isCircular) {
+      delete newAcc[pkg][circularData.offendingPackage]
+    }
+    return newAcc
+  }, Promise.resolve<Index<Index<string>>>({}))
 }
 
 export default getPeerDependenciesFromRegistry

src/lib/logging.ts

@@ -2,7 +2,8 @@
  * Loggin functions.
  */
 import Table from 'cli-table3'
-import { IgnoredUpgrade } from '../types/IgnoredUpgrade'
+import { IgnoredUpgradeDueToEnginesNode } from '../types/IgnoredUpgradeDueToEnginesNode'
+import { IgnoredUpgradeDueToPeerDeps } from '../types/IgnoredUpgradeDueToPeerDeps'
 import { Index } from '../types/IndexType'
 import { Options } from '../types/Options'
 import { VersionResult } from '../types/VersionResult'
@@ -368,7 +369,7 @@ export async function printUpgrades(
 }
 
 /** Print updates that were ignored due to incompatible peer dependencies. */
-export function printIgnoredUpdates(options: Options, ignoredUpdates: Index<IgnoredUpgrade>) {
+export function printIgnoredUpdatesDueToPeerDeps(options: Options, ignoredUpdates: Index<IgnoredUpgradeDueToPeerDeps>) {
   print(options, `\nIgnored incompatible updates (peer dependencies):\n`)
   const table = renderDependencyTable(
     Object.entries(ignoredUpdates).map(([pkgName, { from, to, reason }]) => {
@@ -382,3 +383,21 @@ export function printIgnoredUpdates(options: Options, ignoredUpdates: Index<Igno
   )
   print(options, table)
 }
+
+/** Print updates that were ignored due to incompatible engines.node. */
+export function printIgnoredUpdatesDueToEnginesNode(
+  options: Options,
+  ignoredUpdates: Index<IgnoredUpgradeDueToEnginesNode>,
+) {
+  print(options, `\nIgnored incompatible updates (engines node):\n`)
+  const table = renderDependencyTable(
+    Object.entries(ignoredUpdates).map(([pkgName, { from, to, enginesNode }]) => [
+      pkgName,
+      from,
+      '→',
+      colorizeDiff(from, to),
+      `reason: requires node ${enginesNode}`,
+    ]),
+  )
+  print(options, table)
+}

src/lib/runLocal.ts

@@ -10,11 +10,20 @@ import { Version } from '../types/Version'
 import { VersionSpec } from '../types/VersionSpec'
 import chalk from './chalk'
 import getCurrentDependencies from './getCurrentDependencies'
-import getIgnoredUpgrades from './getIgnoredUpgrades'
+import { getIgnoredUpgradesDueToEnginesNode } from './getIgnoredUpgradesDueToEnginesNode'
+import getIgnoredUpgradesDueToPeerDeps from './getIgnoredUpgradesDueToPeerDeps'
 import getPackageManager from './getPackageManager'
 import getPeerDependenciesFromRegistry from './getPeerDependenciesFromRegistry'
 import keyValueBy from './keyValueBy'
-import { print, printIgnoredUpdates, printJson, printSorted, printUpgrades, toDependencyTable } from './logging'
+import {
+  print,
+  printIgnoredUpdatesDueToEnginesNode,
+  printIgnoredUpdatesDueToPeerDeps,
+  printJson,
+  printSorted,
+  printUpgrades,
+  toDependencyTable,
+} from './logging'
 import { pick } from './pick'
 import programError from './programError'
 import resolveDepSections from './resolveDepSections'
@@ -246,9 +255,20 @@ async function runLocal(
       },
     )
     if (options.peer) {
-      const ignoredUpdates = await getIgnoredUpgrades(current, upgraded, upgradedPeerDependencies!, options)
+      const ignoredUpdates = await getIgnoredUpgradesDueToPeerDeps(
+        current,
+        upgraded,
+        upgradedPeerDependencies!,
+        options,
+      )
+      if (Object.keys(ignoredUpdates).length > 0) {
+        printIgnoredUpdatesDueToPeerDeps(options, ignoredUpdates)
+      }
+    }
+    if (options.enginesNode) {
+      const ignoredUpdates = await getIgnoredUpgradesDueToEnginesNode(current, upgraded, options)
       if (Object.keys(ignoredUpdates).length > 0) {
-        printIgnoredUpdates(options, ignoredUpdates)
+        printIgnoredUpdatesDueToEnginesNode(options, ignoredUpdates)
       }
     }
   }

src/package-managers/npm.ts

@@ -46,6 +46,7 @@ const fetchPartialPackument = async (
   fields: (keyof Packument)[],
   tag: string | null,
   opts: npmRegistryFetch.FetchOptions = {},
+  version?: Version,
 ): Promise<Partial<Packument>> => {
   const corgiDoc = 'application/vnd.npm.install-v1+json; q=1.0, application/json; q=0.8, */*'
   const fullDoc = 'application/json'
@@ -58,7 +59,10 @@ const fetchPartialPackument = async (
     accept: opts.fullMetadata ? fullDoc : corgiDoc,
     ...opts.headers,
   }
-  const url = path.join(registry, name)
+  let url = path.join(registry, name)
+  if (version) {
+    url = path.join(url, version)
+  }
   const fetchOptions = {
     ...opts,
     headers,
@@ -665,6 +669,33 @@ export const getPeerDependencies = async (packageName: string, version: Version)
   return result ? parseJson(result, { command: [...args, '--json'].join(' ') }) : {}
 }
 
+/**
+ * Fetches the engines list from the registry for a specific package version.
+ *
+ * @param packageName
+ * @param version
+ * @returns Promised engines collection
+ */
+export const getEngines = async (
+  packageName: string,
+  version: Version,
+  options: Options = {},
+  npmConfigLocal?: NpmConfig,
+): Promise<Index<VersionSpec | undefined>> => {
+  const result = await fetchPartialPackument(
+    packageName,
+    [`engines`],
+    null,
+    {
+      ...npmConfigLocal,
+      ...npmConfig,
+      ...(options.registry ? { registry: options.registry, silent: true } : null),
+    },
+    version,
+  )
+  return result.engines || {}
+}
+
 /**
  * Fetches the list of all installed packages.
  *

src/package-managers/pnpm.ts

@@ -107,4 +107,4 @@ export default async function spawnPnpm(
   return stdout
 }
 
-export { defaultPrefix, getPeerDependencies, packageAuthorChanged } from './npm'
+export { defaultPrefix, getPeerDependencies, getEngines, packageAuthorChanged } from './npm'

src/package-managers/yarn.ts

@@ -295,4 +295,4 @@ export const semver = withNpmConfigFromYarn(npm.semver)
 
 export default spawnYarn
 
-export { getPeerDependencies, packageAuthorChanged } from './npm'
+export { getEngines, getPeerDependencies, packageAuthorChanged } from './npm'

src/types/IgnoredUpgradeDueToEnginesNode.ts

@@ -0,0 +1,9 @@
+import { Version } from './Version'
+import { VersionSpec } from './VersionSpec'
+
+/** An object that represents an upgrade that was ignored due to mismatch of engines.node */
+export interface IgnoredUpgradeDueToEnginesNode {
+  from: Version
+  to: Version
+  enginesNode: VersionSpec
+}

src/types/IgnoredUpgradeDueToPeerDeps.ts

@@ -0,0 +1,9 @@
+import { Index } from './IndexType'
+import { Version } from './Version'
+
+/** An object that represents an upgrade that was ignored due to peer dependencies, along with the reason. */
+export interface IgnoredUpgradeDueToPeerDeps {
+  from: Version
+  to: Version
+  reason: Index<string>
+}

src/types/PackageManager.ts

@@ -1,5 +1,6 @@
 import { GetVersion } from './GetVersion'
 import { Index } from './IndexType'
+import { NpmConfig } from './NpmConfig'
 import { Options } from './Options'
 import { Version } from './Version'
 import { VersionSpec } from './VersionSpec'
@@ -21,4 +22,10 @@ export interface PackageManager {
     options?: Options,
   ) => Promise<boolean>
   getPeerDependencies?: (packageName: string, version: Version) => Promise<Index<Version>>
+  getEngines?: (
+    packageName: string,
+    version: Version,
+    options: Options,
+    npmConfigLocal?: NpmConfig,
+  ) => Promise<Index<VersionSpec | undefined>>
 }

test/getEnginesNodeFromRegistry.test.ts

@@ -0,0 +1,38 @@
+import { chalkInit } from '../src/lib/chalk'
+import getEnginesNodeFromRegistry from '../src/lib/getEnginesNodeFromRegistry'
+import chaiSetup from './helpers/chaiSetup'
+
+chaiSetup()
+
+describe('getEnginesNodeFromRegistry', function () {
+  it('single package', async () => {
+    await chalkInit()
+    const data = await getEnginesNodeFromRegistry({ del: '2.0.0' }, {})
+    data.should.deep.equal({
+      del: '>=0.10.0',
+    })
+  })
+
+  it('single package empty', async () => {
+    await chalkInit()
+    const data = await getEnginesNodeFromRegistry({ 'ncu-test-return-version': '1.0' }, {})
+    data.should.deep.equal({ 'ncu-test-return-version': undefined })
+  })
+
+  it('multiple packages', async () => {
+    await chalkInit()
+    const data = await getEnginesNodeFromRegistry(
+      {
+        'ncu-test-return-version': '1.0.0',
+        'ncu-test-peer': '1.0.0',
+        del: '2.0.0',
+      },
+      {},
+    )
+    data.should.deep.equal({
+      'ncu-test-return-version': undefined,
+      'ncu-test-peer': undefined,
+      del: '>=0.10.0',
+    })
+  })
+})