@aws-amplify/backend should inherit version bump of same kind from dependencies

scripts/check_changeset_completeness.ts

@@ -2,6 +2,73 @@ import getReleasePlan from '@changesets/get-release-plan';
 import { GitClient } from './components/git_client.js';
 import { readPackageJson } from './components/package-json/package_json.js';
 import { EOL } from 'os';
+// eslint-disable-next-line import/no-extraneous-dependencies
+import { ReleasePlan } from '@changesets/types';
+
+const getModifiedPackages = (changedFiles: string[]): Set<string> => {
+  const modifiedPackageDirs = new Set<string>();
+
+  changedFiles
+    .filter(
+      (changedFile) =>
+        changedFile.startsWith('packages/') && !changedFile.endsWith('test.ts')
+    )
+    .forEach((changedPackageFile) => {
+      modifiedPackageDirs.add(
+        changedPackageFile.split('/').slice(0, 2).join('/')
+      );
+    });
+  return modifiedPackageDirs;
+};
+
+const checkBackendDependenciesVersion = (releasePlan: ReleasePlan) => {
+  const backendDependencies: string[] = [
+    '@aws-amplify/backend-auth',
+    '@aws-amplify/backend-data',
+    '@aws-amplify/backend-function',
+    '@aws-amplify/backend-storage',
+  ];
+  const backendName: string = '@aws-amplify/backend';
+  const versionBumpOfWrongKind: string[] = [];
+  let backendMaxVersionType: string = 'none';
+
+  for (const changeset of releasePlan.changesets) {
+    for (const release of changeset.releases) {
+      if (release.name === backendName) {
+        if (
+          release.type === 'major' ||
+          backendMaxVersionType === 'none' ||
+          (backendMaxVersionType === 'patch' && release.type === 'minor')
+        ) {
+          backendMaxVersionType = release.type;
+        }
+      }
+    }
+  }
+
+  for (const changeset of releasePlan.changesets) {
+    for (const release of changeset.releases) {
+      if (backendDependencies.includes(release.name)) {
+        if (
+          backendMaxVersionType !== release.type &&
+          (release.type === 'major' ||
+            backendMaxVersionType === 'none' ||
+            (backendMaxVersionType === 'patch' && release.type === 'minor'))
+        ) {
+          versionBumpOfWrongKind.push(release.name);
+        }
+      }
+    }
+  }
+
+  if (versionBumpOfWrongKind.length > 0) {
+    throw new Error(
+      `${backendName} has a version bump of a different kind of the following packages but is expected to have a version bump of the same kind:${EOL}${versionBumpOfWrongKind.join(
+        EOL
+      )}`
+    );
+  }
+};
 
 const gitClient = new GitClient();
 
@@ -18,18 +85,7 @@ const packagesWithChangeset = new Set(
 
 const changedFiles = await gitClient.getChangedFiles(baseRef);
 
-const modifiedPackageDirs = new Set<string>();
-
-changedFiles
-  .filter(
-    (changedFile) =>
-      changedFile.startsWith('packages/') && !changedFile.endsWith('test.ts')
-  )
-  .forEach((changedPackageFile) => {
-    modifiedPackageDirs.add(
-      changedPackageFile.split('/').slice(0, 2).join('/')
-    );
-  });
+const modifiedPackageDirs = getModifiedPackages(changedFiles);
 
 const packagesMissingChangesets = [];
 for (const modifiedPackageDir of modifiedPackageDirs) {
@@ -50,3 +106,5 @@ if (packagesMissingChangesets.length > 0) {
     )}${EOL}${EOL}Add a changeset using 'npx changeset add'.`
   );
 }
+
+checkBackendDependenciesVersion(releasePlan);