fix: Merge failures occurring when using different strategies (overwrite with compare, merge base, merge compare)

.talismanrc

@@ -115,5 +115,5 @@ fileignoreconfig:
 - filename: pnpm-lock.yaml
   checksum: fc379207a835de8d851caa256837e2a50e0278c43e0251372f2a5292bee41fac
 - filename: package-lock.json
-  checksum: da059d11bf1083833509cd963761d0d0916da7cf90943100735bf0ddc22e498f
+  checksum: 0cb373716595912a75e9fd356e7a90a67eb1d2de712c454701231e2d5dd3caf7
 version: ""

packages/contentstack-branches/README.md

@@ -37,7 +37,7 @@ $ npm install -g @contentstack/cli-cm-branches
 $ csdx COMMAND
 running command...
 $ csdx (--version)
-@contentstack/cli-cm-branches/1.4.2 darwin-arm64 node-v23.11.0
+@contentstack/cli-cm-branches/1.4.2 darwin-arm64 node-v22.14.0
 $ csdx --help [COMMAND]
 USAGE
   $ csdx COMMAND

packages/contentstack-branches/src/branch/merge-handler.ts

@@ -108,15 +108,13 @@ export default class MergeHandler {
           deleted: [],
         };
         const selectedItems = await selectCustomPreferences(module, this.branchCompareData[module]);
-        if (!selectedItems.length) {
-          cliux.print(chalk.red('No items were selected'));
-          process.exit(1);
+        if (selectedItems?.length) {
+          forEach(selectedItems, (item) => {
+            this.mergeSettings.mergeContent[module][item.status].push(item.value);
+            this.mergeSettings.itemMergeStrategies.push(item.value);
+          });
+          this.mergeSettings.strategy = 'ignore';
         }
-        forEach(selectedItems, (item) => {
-          this.mergeSettings.mergeContent[module][item.status].push(item.value);
-          this.mergeSettings.itemMergeStrategies.push(item.value);
-        });
-        this.mergeSettings.strategy = 'ignore';
       }
     } else if (this.strategy === 'merge_prefer_base') {
       if (this.strategySubOption === 'new') {
@@ -137,12 +135,25 @@ export default class MergeHandler {
     } else if (this.strategy === 'overwrite_with_compare') {
       this.mergeSettings.strategy = 'overwrite_with_compare';
     }
-    if (this.checkEmptySelection()) {
-      cliux.print(chalk.red('No items selected'));
-    } else {
-      await this.displayMergeSummary();
-    }
 
+    const { allEmpty, moduleStatus } = this.checkEmptySelection();
+    const strategyName = this.mergeSettings.strategy;
+
+    if (allEmpty) {
+      cliux.print(chalk.red(`No items selected according to the '${strategyName}' strategy.`));
+      process.exit(1);
+    }
+
+    for (const [type, { exists, empty }] of Object.entries(moduleStatus)) {
+      if (exists && empty) {
+        const readable = type === 'contentType' ? 'Content Types' : 'Global fields';
+        cliux.print('\n')
+        cliux.print(chalk.yellow(`Note: No ${readable} selected according to the '${strategyName}' strategy.`));
+      }
+    }
+
+    this.displayMergeSummary();
+
     if (!this.executeOption) {
       const executionResponse = await selectMergeExecution();
       if (executionResponse === 'previous') {
@@ -160,17 +171,71 @@ export default class MergeHandler {
     }
   }
 
-  checkEmptySelection() {
-    for (let module in this.branchCompareData) {
-      if (this.mergeSettings.mergeContent[module]?.modified?.length
-        || this.mergeSettings.mergeContent[module]?.added?.length
-        || this.mergeSettings.mergeContent[module]?.deleted?.length) {
-        return false;
+  /**
+   * Checks whether the selection of modules in the compare branch data is empty.
+   *
+   * This method evaluates the branch compare data and determines if there are any changes
+   * (added, modified, or deleted) in the modules based on the merge strategy defined in the
+   * merge settings. It categorizes the status of each module as either existing and empty or
+   * not empty.
+   *
+   * @returns An object containing:
+   * - `allEmpty`: A boolean indicating whether all modules are either non-existent or empty.
+   * - `moduleStatus`: A record mapping module types (`contentType` and `globalField`) to their
+   *   respective statuses, which include:
+   *   - `exists`: A boolean indicating whether the module exists in the branch comparison data.
+   *   - `empty`: A boolean indicating whether the module has no changes (added, modified, or deleted).
+   */
+  checkEmptySelection(): {
+    allEmpty: boolean;
+    moduleStatus: Record<string, { exists: boolean; empty: boolean }>;
+  } {
+    const strategy = this.mergeSettings.strategy;
+
+    const useMergeContent = new Set(['custom_preferences', 'ignore']);
+    const modifiedOnlyStrategies = new Set(['merge_modified_only_prefer_base', 'merge_modified_only_prefer_compare']);
+    const addedOnlyStrategies = new Set(['merge_new_only']);
+
+    const moduleStatus: Record<string, { exists: boolean; empty: boolean }> = {
+      contentType: { exists: false, empty: true },
+      globalField: { exists: false, empty: true },
+    };
+
+    for (const module in this.branchCompareData) {
+      const content = useMergeContent.has(strategy)
+        ? this.mergeSettings.mergeContent[module]
+        : this.branchCompareData[module];
+
+      if (!content) continue;
+
+      const isGlobalField = module === 'global_fields';
+      const type = isGlobalField ? 'globalField' : 'contentType';
+      moduleStatus[type].exists = true;
+
+      let hasChanges = false;
+      if (modifiedOnlyStrategies.has(strategy)) {
+        hasChanges = Array.isArray(content.modified) && content.modified.length > 0;
+      } else if (addedOnlyStrategies.has(strategy)) {
+        hasChanges = Array.isArray(content.added) && content.added.length > 0;
+      } else {
+        hasChanges =
+          (Array.isArray(content.modified) && content.modified.length > 0) ||
+          (Array.isArray(content.added) && content.added.length > 0) ||
+          (Array.isArray(content.deleted) && content.deleted.length > 0);
+      }
+
+      if (hasChanges) {
+        moduleStatus[type].empty = false;
       }
     }
-    return true;
+
+    const allEmpty = Object.values(moduleStatus).every(
+      (status) => !status.exists || status.empty
+    );
+
+    return { allEmpty, moduleStatus };
   }
-
+  
   displayMergeSummary() {
     if (this.mergeSettings.strategy !== 'ignore') {
       for (let module in this.branchCompareData) {
@@ -269,10 +334,10 @@ export default class MergeHandler {
     };
 
     const mergePreferencesMap = {
-      'existing_new': 'merge_existing_new',
-      'new': 'merge_new',
-      'existing': 'merge_existing',
-      'ask_preference': 'custom',
+      existing_new: 'merge_existing_new',
+      new: 'merge_new',
+      existing: 'merge_existing',
+      ask_preference: 'custom',
     };
     const selectedMergePreference = mergePreferencesMap[mergePreference];
 
@@ -301,7 +366,10 @@ export default class MergeHandler {
 
     if (scriptFolderPath !== undefined) {
       cliux.success(`\nSuccess! We have generated entry migration files in the folder ${scriptFolderPath}`);
-      cliux.print('\nWARNING!!! Migration is not intended to be run more than once. Migrated(entries/assets) will be duplicated if run more than once', { color: 'yellow' });
+      cliux.print(
+        '\nWARNING!!! Migration is not intended to be run more than once. Migrated(entries/assets) will be duplicated if run more than once',
+        { color: 'yellow' },
+      );
 
       let migrationCommand: string;
       if (os.platform() === 'win32') {

packages/contentstack-branches/src/utils/branch-diff-utility.ts

@@ -79,24 +79,23 @@ async function branchCompareSDK(payload: BranchDiffPayload, skip?: number, limit
   const module = payload.module || 'all';
 
   switch (module) {
-    case 'content_types' || 'content_type':
+    case 'content_types':
+    case 'content_type':
       return await branchQuery
         .contentTypes(queryParams)
         .then((data) => data)
         .catch((err) => handleErrorMsg(err, payload.spinner));
-      break;
-    case 'global_fields' || 'global_field':
+    case 'global_fields':
+    case 'global_field':
       return await branchQuery
         .globalFields(queryParams)
         .then((data) => data)
         .catch((err) => handleErrorMsg(err, payload.spinner));
-      break;
     case 'all':
       return await branchQuery
         .all(queryParams)
         .then((data) => data)
         .catch((err) => handleErrorMsg(err, payload.spinner));
-      break;
     default:
       handleErrorMsg({ errorMessage: 'Invalid module!' }, payload.spinner);
   }

packages/contentstack/README.md

@@ -18,7 +18,7 @@ $ npm install -g @contentstack/cli
 $ csdx COMMAND
 running command...
 $ csdx (--version|-v)
-@contentstack/cli/1.40.0 darwin-arm64 node-v23.11.0
+@contentstack/cli/1.40.4 darwin-arm64 node-v22.14.0
 $ csdx --help [COMMAND]
 USAGE
   $ csdx COMMAND
@@ -3776,7 +3776,8 @@ USAGE
   $ csdx launch:functions [-p <value>] [-d <value>]
 
 FLAGS
-  -d, --data-dir=<value>  [default: /Users/sunil.lakshman/Documents/cli/packages/contentstack] Current working directory
+  -d, --data-dir=<value>  [default: /Users/aman.kumar/Documents/cli-repos/cli/packages/contentstack] Current working
+                          directory
   -p, --port=<value>      [default: 3000] Port number
 
 DESCRIPTION

packages/contentstack/package.json

@@ -25,7 +25,7 @@
     "@contentstack/cli-audit": "~1.12.1",
     "@contentstack/cli-auth": "~1.4.0",
     "@contentstack/cli-cm-bootstrap": "~1.14.0",
-    "@contentstack/cli-cm-branches": "~1.4.1",
+    "@contentstack/cli-cm-branches": "~1.4.2",
     "@contentstack/cli-cm-bulk-publish": "~1.8.0",
     "@contentstack/cli-cm-clone": "~1.14.0",
     "@contentstack/cli-cm-export": "~1.16.1",