feat(ng-dev): add support for ensuring merge-mode is set to release before publishing a new release

Author: josephperrott

ng-dev/caretaker/config/BUILD.bazel

@@ -3,7 +3,7 @@ load("//tools:defaults.bzl", "ts_project")
 ts_project(
     name = "config",
     srcs = glob(["**/*.ts"]),
-    visibility = ["//ng-dev/caretaker:__subpackages__"],
+    visibility = ["//ng-dev:__subpackages__"],
     deps = [
         "//ng-dev:node_modules/@types/yargs",
         "//ng-dev:node_modules/yargs",

ng-dev/release/publish/BUILD.bazel

@@ -17,6 +17,7 @@ ts_project(
         "//ng-dev:node_modules/folder-hash",
         "//ng-dev:node_modules/semver",
         "//ng-dev:node_modules/typed-graphqlify",
+        "//ng-dev/caretaker/config",
         "//ng-dev/commit-message",
         "//ng-dev/pr/merge",
         "//ng-dev/release/build",

ng-dev/release/publish/index.ts

@@ -20,6 +20,7 @@ import {actions} from './actions/index.js';
 import {verifyNgDevToolIsUpToDate} from '../../utils/version-check.js';
 import {Log, yellow} from '../../utils/logging.js';
 import {Prompt} from '../../utils/prompt.js';
+import {getRepoConfigValue} from '../../caretaker/config/get/index.js';
 
 export enum CompletionState {
   SUCCESS,
@@ -50,6 +51,7 @@ export class ReleaseTool {
     const nextBranchName = getNextBranchName(this._github);
 
     if (
+      !(await this._verifyInReleaseMergeMode()) ||
       !(await this._verifyNoUncommittedChanges()) ||
       !(await this._verifyRunningFromNextBranch(nextBranchName)) ||
       !(await this._verifyNoShallowRepository()) ||
@@ -144,6 +146,24 @@ export class ReleaseTool {
     return true;
   }
 
+  /**
+   * Verifies that there are no uncommitted changes in the project.
+   * @returns a boolean indicating success or failure.
+   */
+  private async _verifyInReleaseMergeMode(): Promise<boolean> {
+    const currentMergeMode = await getRepoConfigValue('merge-mode');
+    if (currentMergeMode !== 'release') {
+      Log.error(
+        `  ✘   The repository merge-mode is currently set to ${currentMergeMode} but must be set to release before`,
+      );
+      Log.error(
+        '.     publishing releases. You can set the repository to relese by running `ng-dev caretaker start-release`',
+      );
+      return false;
+    }
+    return true;
+  }
+
   /**
    * Verifies that the local repository is not configured as shallow.
    * @returns a boolean indicating success or failure.