feat!: check the packageManager field (#7635)

* feat!: check the packageManager field

* test: fix

* refactor: update error message to match what corepack prints

* feat: add pm-strict option

* refactor: pm-strict=>package-manager-strict

* fix: remove packageManager field from package.json on publish

cli/cli-utils/src/packageIsInstallable.ts

@@ -1,17 +1,20 @@
+import { PnpmError } from '@pnpm/error'
 import { packageManager } from '@pnpm/cli-meta'
-import { logger } from '@pnpm/logger'
+import { logger, globalWarn } from '@pnpm/logger'
 import { checkPackage, UnsupportedEngineError, type WantedEngine } from '@pnpm/package-is-installable'
 import { type SupportedArchitectures } from '@pnpm/types'
 
 export function packageIsInstallable (
   pkgPath: string,
   pkg: {
+    packageManager?: string
     engines?: WantedEngine
     cpu?: string[]
     os?: string[]
     libc?: string[]
   },
   opts: {
+    packageManagerStrict?: boolean
     engineStrict?: boolean
     nodeVersion?: string
     supportedArchitectures?: SupportedArchitectures
@@ -20,6 +23,24 @@ export function packageIsInstallable (
   const pnpmVersion = packageManager.name === 'pnpm'
     ? packageManager.stableVersion
     : undefined
+  if (pkg.packageManager) {
+    const [pmName, pmVersion] = pkg.packageManager.split('@')
+    if (pmName && pmName !== 'pnpm') {
+      const msg = `This project is configured to use ${pmName}`
+      if (opts.packageManagerStrict) {
+        throw new PnpmError('OTHER_PM_EXPECTED', msg)
+      } else {
+        globalWarn(msg)
+      }
+    } else if (pmVersion && pnpmVersion && pmVersion !== pnpmVersion) {
+      const msg = `This project is configured to use v${pmVersion} of pnpm. Your current pnpm is v${pnpmVersion}`
+      if (opts.packageManagerStrict) {
+        throw new PnpmError('BAD_PM_VERSION', msg)
+      } else {
+        globalWarn(msg)
+      }
+    }
+  }
   const err = checkPackage(pkgPath, pkg, {
     nodeVersion: opts.nodeVersion,
     pnpmVersion,

cli/cli-utils/src/readProjectManifest.ts

@@ -4,6 +4,7 @@ import { packageIsInstallable } from './packageIsInstallable'
 
 export interface ReadProjectManifestOpts {
   engineStrict?: boolean
+  packageManagerStrict?: boolean
   nodeVersion?: string
   supportedArchitectures?: SupportedArchitectures
 }