[rush] Fix an issue with validation of packageExtensionsChecksum.

common/changes/@microsoft/rush/fix-package-extensions-hash_2025-10-03-17-31.json

@@ -0,0 +1,10 @@
+{
+  "changes": [
+    {
+      "packageName": "@microsoft/rush",
+      "comment": "Fix an issue with validation of the `pnpm-lock.yaml` `packageExtensionsChecksum` field in pnpm v10.",
+      "type": "none"
+    }
+  ],
+  "packageName": "@microsoft/rush"
+}

common/config/rush/nonbrowser-approved-packages.json

@@ -846,6 +846,10 @@
       "name": "npm-packlist",
       "allowedCategories": [ "libraries" ]
     },
+    {
+      "name": "object-hash",
+      "allowedCategories": [ "libraries" ]
+    },
     {
       "name": "open",
       "allowedCategories": [ "libraries" ]

common/config/subspaces/build-tests-subspace/repo-state.json

@@ -1,6 +1,6 @@
 // DO NOT MODIFY THIS FILE MANUALLY BUT DO COMMIT IT. It is generated and used by Rush.
 {
-  "pnpmShrinkwrapHash": "9eaf55ba29de8d94e17af33463f3b6ce0480400b",
+  "pnpmShrinkwrapHash": "f2c06df75a96061e31624e1a556e34660a569623",
   "preferredVersionsHash": "550b4cee0bef4e97db6c6aad726df5149d20e7d9",
-  "packageJsonInjectedDependenciesHash": "5f2a311100f4ad0bc6735377670f5d7cfd664127"
+  "packageJsonInjectedDependenciesHash": "14f4881943e5d03a361f079944eb76e1501b3e18"
 }

common/config/subspaces/default/repo-state.json

@@ -1,5 +1,5 @@
 // DO NOT MODIFY THIS FILE MANUALLY BUT DO COMMIT IT. It is generated and used by Rush.
 {
-  "pnpmShrinkwrapHash": "b14e05fb6e67142fd6a574fe462bee93cb828511",
+  "pnpmShrinkwrapHash": "c643d2cc7e2c60ef034a6557fc89760140d42f66",
   "preferredVersionsHash": "61cd419c533464b580f653eb5f5a7e27fe7055ca"
 }

libraries/rush-lib/package.json

@@ -57,6 +57,7 @@
     "js-yaml": "~4.1.0",
     "npm-check": "~6.0.1",
     "npm-package-arg": "~6.1.0",
+    "object-hash": "3.0.0",
     "pnpm-sync-lib": "0.3.2",
     "read-package-tree": "~5.1.5",
     "rxjs": "~6.6.7",
@@ -70,8 +71,6 @@
   "devDependencies": {
     "@pnpm/lockfile.types": "~1.0.3",
     "@pnpm/logger": "4.0.0",
-    "eslint": "~9.25.1",
-    "local-node-rig": "workspace:*",
     "@rushstack/heft-webpack5-plugin": "workspace:*",
     "@rushstack/heft": "workspace:*",
     "@rushstack/operation-graph": "workspace:*",
@@ -81,12 +80,15 @@
     "@types/inquirer": "7.3.1",
     "@types/js-yaml": "4.0.9",
     "@types/npm-package-arg": "6.1.0",
+    "@types/object-hash": "~3.0.6",
     "@types/read-package-tree": "5.1.0",
     "@types/semver": "7.5.0",
     "@types/ssri": "~7.1.0",
     "@types/strict-uri-encode": "2.0.0",
     "@types/tar": "6.1.6",
     "@types/webpack-env": "1.18.8",
+    "eslint": "~9.25.1",
+    "local-node-rig": "workspace:*",
     "webpack": "~5.98.0"
   },
   "publishOnlyDependencies": {

libraries/rush-lib/src/logic/installManager/WorkspaceInstallManager.ts

@@ -399,11 +399,41 @@ export class WorkspaceInstallManager extends BaseInstallManager {
     }
 
     // Check if packageExtensionsChecksum matches globalPackageExtension's hash
-    const packageExtensionsChecksum: string | undefined = this._getPackageExtensionChecksum(
-      pnpmOptions.globalPackageExtensions
-    );
+    let packageExtensionsChecksum: string | undefined;
+    let existingPackageExtensionsChecksum: string | undefined;
+    if (shrinkwrapFile) {
+      existingPackageExtensionsChecksum = shrinkwrapFile.packageExtensionsChecksum;
+      let packageExtensionsChecksumAlgorithm: string | undefined;
+      if (existingPackageExtensionsChecksum) {
+        const dashIndex: number = existingPackageExtensionsChecksum.indexOf('-');
+        if (dashIndex === -1) {
+          packageExtensionsChecksumAlgorithm = existingPackageExtensionsChecksum.substring(0, dashIndex);
+        }
+
+        if (packageExtensionsChecksumAlgorithm && packageExtensionsChecksumAlgorithm !== 'sha256') {
+          this._terminal.writeErrorLine(
+            `The existing packageExtensionsChecksum algorithm "${packageExtensionsChecksumAlgorithm}" is not supported. ` +
+              `This may indicate that the shrinkwrap was created with a newer version of PNPM than Rush supports.`
+          );
+          throw new AlreadyReportedError();
+        }
+      }
+
+      const globalPackageExtensions: Record<string, unknown> | undefined =
+        pnpmOptions.globalPackageExtensions;
+      // https://github.com/pnpm/pnpm/blob/ba9409ffcef0c36dc1b167d770a023c87444822d/pkg-manager/core/src/install/index.ts#L331
+      if (globalPackageExtensions && Object.keys(globalPackageExtensions).length !== 0) {
+        if (packageExtensionsChecksumAlgorithm) {
+          // In PNPM v10, the algorithm changed to SHA256 and the digest changed from hex to base64
+          packageExtensionsChecksum = await createObjectChecksumAsync(globalPackageExtensions);
+        } else {
+          packageExtensionsChecksum = createObjectChecksumLegacy(globalPackageExtensions);
+        }
+      }
+    }
+
     const packageExtensionsChecksumAreEqual: boolean =
-      packageExtensionsChecksum === shrinkwrapFile?.packageExtensionsChecksum;
+      packageExtensionsChecksum === existingPackageExtensionsChecksum;
 
     if (!packageExtensionsChecksumAreEqual) {
       shrinkwrapWarnings.push("The package extension hash doesn't match the current shrinkwrap.");
@@ -420,18 +450,6 @@ export class WorkspaceInstallManager extends BaseInstallManager {
     return { shrinkwrapIsUpToDate, shrinkwrapWarnings };
   }
 
-  private _getPackageExtensionChecksum(
-    packageExtensions: Record<string, unknown> | undefined
-  ): string | undefined {
-    // https://github.com/pnpm/pnpm/blob/ba9409ffcef0c36dc1b167d770a023c87444822d/pkg-manager/core/src/install/index.ts#L331
-    const packageExtensionsChecksum: string | undefined =
-      Object.keys(packageExtensions ?? {}).length === 0
-        ? undefined
-        : createObjectChecksum(packageExtensions!);
-
-    return packageExtensionsChecksum;
-  }
-
   protected async canSkipInstallAsync(
     lastModifiedDate: Date,
     subspace: Subspace,
@@ -793,10 +811,36 @@ export class WorkspaceInstallManager extends BaseInstallManager {
 
 /**
  * Source: https://github.com/pnpm/pnpm/blob/ba9409ffcef0c36dc1b167d770a023c87444822d/pkg-manager/core/src/install/index.ts#L821-L824
- * @param obj
- * @returns
  */
-function createObjectChecksum(obj: Record<string, unknown>): string {
+function createObjectChecksumLegacy(obj: Record<string, unknown>): string {
   const s: string = JSON.stringify(Sort.sortKeys(obj));
   return createHash('md5').update(s).digest('hex');
 }
+
+/**
+ * Source: https://github.com/pnpm/pnpm/blob/bdbd31aa4fa6546d65b6eee50a79b51879340d40/crypto/object-hasher/src/index.ts#L8-L12
+ */
+const defaultOptions: import('object-hash').NormalOption = {
+  respectType: false,
+  algorithm: 'sha256',
+  encoding: 'base64'
+};
+
+/**
+ * https://github.com/pnpm/pnpm/blob/bdbd31aa4fa6546d65b6eee50a79b51879340d40/crypto/object-hasher/src/index.ts#L21-L26
+ */
+const withSortingOptions: import('object-hash').NormalOption = {
+  ...defaultOptions,
+  unorderedArrays: true,
+  unorderedObjects: true,
+  unorderedSets: true
+};
+
+/**
+ * Source: https://github.com/pnpm/pnpm/blob/bdbd31aa4fa6546d65b6eee50a79b51879340d40/crypto/object-hasher/src/index.ts#L45-L49
+ */
+async function createObjectChecksumAsync(obj: Record<string, unknown>): Promise<string> {
+  const { default: hash } = await import('object-hash');
+  const packageExtensionsChecksum: string = hash(obj, withSortingOptions);
+  return `${defaultOptions.algorithm}-${packageExtensionsChecksum}`;
+}

libraries/rush-lib/src/logic/pnpm/PnpmShrinkwrapFile.ts

@@ -580,7 +580,7 @@ export class PnpmShrinkwrapFile extends BaseShrinkwrapFile {
    */
   private _parseDependencyPath(packagePath: string): string {
     let depPath: string = packagePath;
-    if (this.shrinkwrapFileMajorVersion >= 6) {
+    if (this.shrinkwrapFileMajorVersion >= ShrinkwrapFileMajorVersion.V6) {
       depPath = this._convertLockfileV6DepPathToV5DepPath(packagePath);
     }
     const pkgInfo: ReturnType<typeof dependencyPathLockfilePreV9.parse> =
@@ -998,7 +998,7 @@ export class PnpmShrinkwrapFile extends BaseShrinkwrapFile {
 
     const allDependencies: PackageJsonDependency[] = [...dependencyList, ...devDependencyList];
 
-    if (this.shrinkwrapFileMajorVersion < 6) {
+    if (this.shrinkwrapFileMajorVersion < ShrinkwrapFileMajorVersion.V6) {
       // PNPM <= v7
 
       // Then get the unique package names and map them to package versions.